Climate and average weather in Corner Brook
In Corner Brook, the summers are mild, showery, and partly cloudy and the winters are very cold, snowy, and mostly cloudy.
Over the course of the year, the temperature in Corner Brook typically varies from -12°C to 19°C, and is rarely below -19°C or above 23°C. August is the hottest month of the year, while January is the coldest.
Based on the travel score, the best time of year to visit Corner Brook for warm-weather activities is from late June to mid September.
- Hottest
- Aug
- 19°
- Coldest
- Jan
- -11°
- Wettest
- Nov
- 128 mm
- Driest
- May
- 84 mm
- Rain / yr
- 1292 mm
- 180 wet days
- Daylight
- 8.0–16.0 h
- shortest–longest
- Elevation
- 17 m
- 49.0°N
- Clearest
- Jul
- 67% cloud
Corner Brook is city in Newfoundland and Labrador, Canada.
- Air quality
- Good
- PM2.5 6 µg/m³ · 2019
- Density
- 130/km²
- people per km²
- Founded
- 1956
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Corner Brook weather by month, at a glance
The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.
Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around late June to mid September.
Temperature through the year
Daily average highs and lows in Corner Brook, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.
The hot season lasts 3.6 months, from June 11 to September 27, with daily high temperatures above 14°C. The hottest month of the year in Corner Brook is August, with an average high of 19°C and low of 13°C.
The cool season lasts 3.2 months, from December 14 to March 20, with daily high temperatures below -0°C. The coldest month of the year in Corner Brook is January, with an average low of -11°C and high of -5°C.
Days typically run about 7°C warmer than nights, with the widest day–night swing (around 8°C) in May.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | -4 | -4 | -1 | 4 | 10 | 15 | 19 | 19 | 16 | 10 | 4 | -1 |
| Avg low (°C) | -11 | -12 | -8 | -3 | 2 | 7 | 11 | 13 | 9 | 4 | 0 | -6 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| Jan | -4 | -11 |
| Feb | -4 | -12 |
| Mar | -1 | -8 |
| Apr | 4 | -3 |
| May | 10 | 2 |
| Jun | 15 | 7 |
| Jul | 19 | 11 |
| Aug | 19 | 13 |
| Sep | 16 | 9 |
| Oct | 10 | 4 |
| Nov | 4 | 0 |
| Dec | -1 | -6 |
How hot and cold Corner Brook really feels
The felt-temperature range through the year — heat index on the day's high (summer humidity), wind chill on the night's low (winter wind). The dashed lines are the plain thermometer; the gap is how much hotter or colder it really feels.
On the coldest nights, wind chill pulls the feels-like down to about -19°C (around February 4), with roughly 210 freezing days a year (feels-like at or below 0°C) — 114 of them bitterly cold — worst in February.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feels-like high (°C) | -4 | -4 | -1 | 4 | 10 | 15 | 19 | 19 | 15 | 10 | 4 | -1 |
| Air high (°C) | -4 | -4 | -1 | 4 | 10 | 15 | 19 | 19 | 16 | 10 | 4 | -1 |
| Feels-like low (°C) | -18 | -18 | -14 | -8 | -1 | 5 | 11 | 13 | 8 | 1 | -5 | -11 |
| Air low (°C) | -11 | -12 | -8 | -3 | 2 | 7 | 11 | 13 | 9 | 4 | 0 | -6 |
| Feels-like high (°C) | Air high (°C) | Feels-like low (°C) | Air low (°C) | |
|---|---|---|---|---|
| Jan | -4 | -4 | -18 | -11 |
| Feb | -4 | -4 | -18 | -12 |
| Mar | -1 | -1 | -14 | -8 |
| Apr | 4 | 4 | -8 | -3 |
| May | 10 | 10 | -1 | 2 |
| Jun | 15 | 15 | 5 | 7 |
| Jul | 19 | 19 | 11 | 11 |
| Aug | 19 | 19 | 13 | 13 |
| Sep | 15 | 16 | 8 | 9 |
| Oct | 10 | 10 | 1 | 4 |
| Nov | 4 | 4 | -5 | 0 |
| Dec | -1 | -1 | -11 | -6 |
Average hourly temperature in Corner Brook
A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.
Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on August afternoons, near 19°C, and coldest before dawn in January, near -11°C.
Corner Brook weather by month
Every month at a glance. Click a month for its detailed page.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | -5° / -11° | 115 | 18 | 20.6 | 8.5 | 0.0 |
| Feb | -5° / -12° | 101 | 14.6 | 17.3 | 9.8 | 0.0 |
| Mar | -1° / -8° | 96 | 13.9 | 13.9 | 11.6 | 0.0 |
| Apr | 4° / -3° | 85 | 13 | 8.9 | 13.4 | 0.2 |
| May | 10° / 2° | 84 | 13.1 | 2.9 | 15 | 2.0 |
| Jun | 15° / 7° | 86 | 12.2 | 0.1 | 15.9 | 4.1 |
| Jul | 19° / 11° | 104 | 13.8 | 0 | 15.6 | 5.4 |
| Aug | 19° / 13° | 121 | 14.6 | 0 | 14.2 | 5.5 |
| Sep | 16° / 9° | 120 | 14 | 0.1 | 12.4 | 4.2 |
| Oct | 10° / 4° | 128 | 16.3 | 2.3 | 10.5 | 1.8 |
| Nov | 4° / -0° | 128 | 17.8 | 11 | 8.9 | 0.1 |
| Dec | -1° / -6° | 126 | 18.8 | 18.6 | 8.1 | 0.0 |
Chance of rain
How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.
Corner Brook gets about 1292 mm of precipitation a year. On a typical day the chance of rain is very wet, but that rises and falls sharply with the seasons.
The wetter season lasts 4.8 months, from around Oct 7 to Feb 28, peaking in December at about 62% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jun 20.
November is the wettest month by volume, with 128 mm over about 18 wet days; May is the driest, with 84 mm. Some of the cold-season precipitation falls as snow.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain on a day (%) | 58 | 52 | 46 | 43 | 42 | 41 | 44 | 47 | 47 | 53 | 59 | 60 |
| Rain days | 18 | 15 | 14 | 13 | 13 | 12 | 14 | 15 | 14 | 16 | 18 | 19 |
| Rain on a day (%) | Rain days | |
|---|---|---|
| Jan | 58 | 18 |
| Feb | 52 | 15 |
| Mar | 46 | 14 |
| Apr | 43 | 13 |
| May | 42 | 13 |
| Jun | 41 | 12 |
| Jul | 44 | 14 |
| Aug | 47 | 15 |
| Sep | 47 | 14 |
| Oct | 53 | 16 |
| Nov | 59 | 18 |
| Dec | 60 | 19 |
Monthly rainfall
Over a full year, Corner Brook collects about 1292 mm of rain across 180 wet days — roughly 108 mm in an average month.
It doesn’t fall evenly. November is the wettest month with 128 mm, while May is the driest at just 84 mm. The three wettest months alone bring about 30% of the year’s total, and some of the cold-season precipitation falls as snow.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rainfall (mm) | 115 | 101 | 96 | 85 | 84 | 86 | 104 | 121 | 120 | 128 | 128 | 126 |
| Rain days | 18 | 15 | 14 | 13 | 13 | 12 | 14 | 15 | 14 | 16 | 18 | 19 |
| Snow days | 21 | 17 | 14 | 9 | 3 | 0 | 0 | 0 | 0 | 2 | 11 | 19 |
| Rainfall (mm) | Rain days | Snow days | |
|---|---|---|---|
| Jan | 115 | 18 | 21 |
| Feb | 101 | 15 | 17 |
| Mar | 96 | 14 | 14 |
| Apr | 85 | 13 | 9 |
| May | 84 | 13 | 3 |
| Jun | 86 | 12 | 0 |
| Jul | 104 | 14 | 0 |
| Aug | 121 | 15 | 0 |
| Sep | 120 | 14 | 0 |
| Oct | 128 | 16 | 2 |
| Nov | 128 | 18 | 11 |
| Dec | 126 | 19 | 19 |
Snow in Corner Brook
Average snowy days through the year, the snow-season span, and estimated snowfall — for ski trips and the perennial 'will there be snow at Christmas?' question.
Corner Brook averages about 96 snowy days a year. Snow season runs roughly Oct 4 to Jun 3 — about 8 months.
January is snowiest, with roughly 20 days of snow and an estimated 100 cm of snowfall. Over the year that adds up to an estimated 495 cm of snow.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Snow days | 21 | 17 | 14 | 9 | 3 | 0 | 0 | 0 | 0 | 2 | 11 | 19 |
| Snowfall (cm) | 100 | 106 | 72 | 42 | 13 | 0 | 0 | 0 | 0 | 9 | 59 | 93 |
| Snow days | Snowfall (cm) | |
|---|---|---|
| Jan | 21 | 100 |
| Feb | 17 | 106 |
| Mar | 14 | 72 |
| Apr | 9 | 42 |
| May | 3 | 13 |
| Jun | 0 | 0 |
| Jul | 0 | 0 |
| Aug | 0 | 0 |
| Sep | 0 | 0 |
| Oct | 2 | 9 |
| Nov | 11 | 59 |
| Dec | 19 | 93 |
Clouds and sunshine
How often the daytime sky is clear, partly cloudy or overcast.
In Corner Brook, the average share of the sky covered by clouds shows significant seasonal variation over the course of the year.
The clearer part of the year begins around April 12 and lasts for 6.2 months, ending around October 16. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 38% of the time on average.
The cloudier part of the year begins around October 17 and lasts for 5.8 months, ending around April 11. The cloudiest month is January, when it is overcast or mostly cloudy 96% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 4 | 9 | 19 | 24 | 32 | 35 | 36 | 38 | 33 | 23 | 12 | 4 |
| Cloudier (%) | 96 | 91 | 81 | 76 | 68 | 65 | 64 | 62 | 67 | 77 | 88 | 96 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| Jan | 4 | 96 |
| Feb | 9 | 91 |
| Mar | 19 | 81 |
| Apr | 24 | 76 |
| May | 32 | 68 |
| Jun | 35 | 65 |
| Jul | 36 | 64 |
| Aug | 38 | 62 |
| Sep | 33 | 67 |
| Oct | 23 | 77 |
| Nov | 12 | 88 |
| Dec | 4 | 96 |
Daylight, sunrise and sunset
Hours of daylight through the year, with sunrise and sunset times.
The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around June 16, brings about 16 hours of light; the shortest, around December 16, only 8 hours — a swing of roughly 8 hours.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 8.5 | 9.8 | 11.6 | 13.4 | 15.0 | 15.9 | 15.6 | 14.2 | 12.4 | 10.5 | 8.9 | 8.1 |
| Sunrise (AM) | 8:18 | 7:41 | 6:45 | 5:39 | 4:46 | 4:24 | 4:40 | 5:20 | 6:05 | 6:51 | 7:41 | 8:17 |
| Sunset (PM) | 4:45 | 5:31 | 6:18 | 7:05 | 7:50 | 8:21 | 8:15 | 7:32 | 6:27 | 5:23 | 4:33 | 4:19 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| Jan | 8.5 | 8:18 | 4:45 |
| Feb | 9.8 | 7:41 | 5:31 |
| Mar | 11.6 | 6:45 | 6:18 |
| Apr | 13.4 | 5:39 | 7:05 |
| May | 15.0 | 4:46 | 7:50 |
| Jun | 15.9 | 4:24 | 8:21 |
| Jul | 15.6 | 4:40 | 8:15 |
| Aug | 14.2 | 5:20 | 7:32 |
| Sep | 12.4 | 6:05 | 6:27 |
| Oct | 10.5 | 6:51 | 5:23 |
| Nov | 8.9 | 7:41 | 4:33 |
| Dec | 8.1 | 8:17 | 4:19 |
Sunny days
How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.
Corner Brook averages about 4 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 0 and 8 days.
The sunnier stretch runs 6.0 months, from around Apr 13 to Oct 11. The sunniest month is June, with roughly 8 sunny days (gloomy).
The greyest month is December, down near 0 sunny days — about 97% fewer than the June peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sunny days | 0 | 1 | 4 | 4 | 6 | 7 | 7 | 8 | 6 | 3 | 1 | 0 |
| Sky | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy |
| Sunny days | Sky | |
|---|---|---|
| Jan | 0 | Gloomy |
| Feb | 1 | Gloomy |
| Mar | 4 | Gloomy |
| Apr | 4 | Gloomy |
| May | 6 | Gloomy |
| Jun | 7 | Gloomy |
| Jul | 7 | Gloomy |
| Aug | 8 | Gloomy |
| Sep | 6 | Gloomy |
| Oct | 3 | Gloomy |
| Nov | 1 | Gloomy |
| Dec | 0 | Gloomy |
Humidity comfort
Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.
Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.
In Corner Brook, how humid it feels changes noticeably over the year.
The more humid part of the year lasts 2.6 months, from around June 30 to September 16. The muggiest month is August, when the air feels humid, muggy or worse about 15% of the time.
The most comfortable stretch runs from around September 17 to June 29, and May is the most comfortable month — the air is dry or comfortable 100% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 100 | 100 | 100 | 100 | 100 | 93 | 63 | 51 | 82 | 99 | 100 | 100 |
| Comfortable (%) | 0 | 0 | 0 | 0 | 0 | 6 | 26 | 34 | 14 | 1 | 0 | 0 |
| Humid (%) | 0 | 0 | 0 | 0 | 0 | 1 | 11 | 14 | 4 | 0 | 0 | 0 |
| Muggy (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | |
|---|---|---|---|---|
| Jan | 100 | 0 | 0 | 0 |
| Feb | 100 | 0 | 0 | 0 |
| Mar | 100 | 0 | 0 | 0 |
| Apr | 100 | 0 | 0 | 0 |
| May | 100 | 0 | 0 | 0 |
| Jun | 93 | 6 | 1 | 0 |
| Jul | 63 | 26 | 11 | 0 |
| Aug | 51 | 34 | 14 | 1 |
| Sep | 82 | 14 | 4 | 0 |
| Oct | 99 | 1 | 0 | 0 |
| Nov | 100 | 0 | 0 | 0 |
| Dec | 100 | 0 | 0 | 0 |
Wind
Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.
This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.
Across the year, average wind speed in Corner Brook is typically light breeze, near 12 km/h, and varies moderately with the seasons.
The windier part of the year lasts 6.7 months, from around Sep 22 to Apr 14. The windiest month is December, averaging about 14 km/h (light breeze).
The calmer part of the year runs from around Apr 15 to Sep 21, with July the calmest month at about 9 km/h.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 14 | 14 | 13 | 12 | 11 | 10 | 9 | 10 | 12 | 13 | 14 | 14 |
| Feels | light breeze | light breeze | light breeze | calm | calm | calm | calm | calm | calm | light breeze | light breeze | light breeze |
| Wind speed (km/h) | Feels | |
|---|---|---|
| Jan | 14 | light breeze |
| Feb | 14 | light breeze |
| Mar | 13 | light breeze |
| Apr | 12 | calm |
| May | 11 | calm |
| Jun | 10 | calm |
| Jul | 9 | calm |
| Aug | 10 | calm |
| Sep | 12 | calm |
| Oct | 13 | light breeze |
| Nov | 14 | light breeze |
| Dec | 14 | light breeze |
Best time to visit Corner Brook
To characterize how pleasant the weather is in Corner Brook throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.
Around late August, Corner Brook is still near the tail of its best-weather window — great conditions with the peak-season crowds already thinning.
Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.
The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. Based on this score, the best time of year to visit Corner Brook for general outdoor tourist activities is from late June to early September, with a peak score in the first week of August.
The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Travel score (0–10) | 0.0 | 0.0 | 0.0 | 0.2 | 2.0 | 4.1 | 5.4 | 5.5 | 4.1 | 1.8 | 0.2 | 0.0 |
| Rating | poor | poor | poor | poor | poor | fair | fair | fair | fair | poor | poor | poor |
| Travel score (0–10) | Rating | |
|---|---|---|
| Jan | 0.0 | poor |
| Feb | 0.0 | poor |
| Mar | 0.0 | poor |
| Apr | 0.2 | poor |
| May | 2.0 | poor |
| Jun | 4.1 | fair |
| Jul | 5.4 | fair |
| Aug | 5.5 | fair |
| Sep | 4.1 | fair |
| Oct | 1.8 | poor |
| Nov | 0.2 | poor |
| Dec | 0.0 | poor |
The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best time of year to visit Corner Brook for hot-weather activities is from late July to late August, with a peak score in the first week of August.
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).
What to pack for Corner Brook, by month
Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.
For a warm-season trip around August (highs near 19°C), the essentials are rain gear. In the cold season around January (highs near -5°C), pack a warm layer, a heavy coat and rain gear.
In August, Corner Brook sees daytime highs around 19°C and nights near 13°C. Pack rain gear. About 15 days see rain.
Sea temperature near Corner Brook
Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.
The sea at the nearest coast (about 36 km away) is warmest in August at about 16°C and coldest in March near -0°C.
The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 1 | 0 | 0 | 1 | 3 | 8 | 13 | 16 | 14 | 9 | 6 | 3 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Bracing | Bracing | Bracing | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 1 | Bracing |
| Feb | 0 | Bracing |
| Mar | 0 | Bracing |
| Apr | 1 | Bracing |
| May | 3 | Bracing |
| Jun | 8 | Bracing |
| Jul | 13 | Bracing |
| Aug | 16 | Cool |
| Sep | 14 | Bracing |
| Oct | 9 | Bracing |
| Nov | 6 | Bracing |
| Dec | 3 | Bracing |
UV index (midday) in Corner Brook by month
Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.
Under clear skies, the midday UV index in Corner Brook peaks around June 17 at about 7 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 22 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 3 | 5 | 6 | 7 | 7 | 6 | 4 | 3 | 1 | 1 |
| Level | Low | Low | Moderate | Moderate | High | Very high | High | High | Moderate | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Low |
| Mar | 3 | Moderate |
| Apr | 5 | Moderate |
| May | 6 | High |
| Jun | 7 | Very high |
| Jul | 7 | High |
| Aug | 6 | High |
| Sep | 4 | Moderate |
| Oct | 3 | Moderate |
| Nov | 1 | Low |
| Dec | 1 | Low |
Average hourly UV index in Corner Brook
Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.
The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.
UV falls off far faster than brightness as the sun drops, so even in June the burn window is concentrated in the middle of the day: about 8 hours a day reach index 3 (protection recommended), and 4 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV ≥ 3 (h/day) | 0 | 0 | 1 | 5 | 7 | 8 | 7.5 | 6.5 | 4.5 | 0 | 0 | 0 |
| UV ≥ 6 (h/day) | 0 | 0 | 0 | 0 | 2 | 4 | 2.5 | 0 | 0 | 0 | 0 | 0 |
| UV ≥ 3 (h/day) | UV ≥ 6 (h/day) | |
|---|---|---|
| Jan | 0 | 0 |
| Feb | 0 | 0 |
| Mar | 1 | 0 |
| Apr | 5 | 0 |
| May | 7 | 2 |
| Jun | 8 | 4 |
| Jul | 7.5 | 2.5 |
| Aug | 6.5 | 0 |
| Sep | 4.5 | 0 |
| Oct | 0 | 0 |
| Nov | 0 | 0 |
| Dec | 0 | 0 |
Growing season
The growing season in Corner Brook typically lasts about 196 days, from around May 3 to November 14 — the span where a frost-free day is more likely than not. It is reliably frost-free from May 25 to October 22.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Frost-free chance (%) | 2 | 2 | 6 | 21 | 76 | 99 | 100 | 100 | 100 | 93 | 48 | 11 |
| Frost nights | 31 | 28 | 31 | 30 | 22 | 0 | 0 | 0 | 0 | 8 | 30 | 31 |
| Frost-free chance (%) | Frost nights | |
|---|---|---|
| Jan | 2 | 31 |
| Feb | 2 | 28 |
| Mar | 6 | 31 |
| Apr | 21 | 30 |
| May | 76 | 22 |
| Jun | 99 | 0 |
| Jul | 100 | 0 |
| Aug | 100 | 0 |
| Sep | 100 | 0 |
| Oct | 93 | 8 |
| Nov | 48 | 30 |
| Dec | 11 | 31 |
Growing degree days
Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Corner Brook banks about 444 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around August.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Growing degree days (°C·days) | 0 | 0 | 0 | 0 | 0 | 34 | 157 | 184 | 69 | 0 | 0 | 0 |
| Growing degree days (°C·days) | |
|---|---|
| Jan | 0 |
| Feb | 0 |
| Mar | 0 |
| Apr | 0 |
| May | 0 |
| Jun | 34 |
| Jul | 157 |
| Aug | 184 |
| Sep | 69 |
| Oct | 0 |
| Nov | 0 |
| Dec | 0 |
Solar energy
Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.
Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.
Corner Brook receives about 3.1 kWh/m² a day of solar energy on average — moderate — with a clear seasonal swing between 0.7 and 5.4 kWh/m².
The brighter stretch of the year lasts 6.2 months, from around Mar 13 to Sep 16. The brightest month is June, averaging about 5.3 kWh/m² (bright).
The dimmest month is December, down near 0.7 kWh/m² — roughly 86% less than the June peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 1.0 | 1.9 | 3.3 | 4.3 | 5.0 | 5.3 | 5.1 | 4.3 | 3.1 | 1.9 | 1.0 | 0.7 |
| Level | Dim | Dim | Moderate | Bright | Bright | Bright | Bright | Bright | Moderate | Dim | Dim | Dim |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| Jan | 1.0 | Dim |
| Feb | 1.9 | Dim |
| Mar | 3.3 | Moderate |
| Apr | 4.3 | Bright |
| May | 5.0 | Bright |
| Jun | 5.3 | Bright |
| Jul | 5.1 | Bright |
| Aug | 4.3 | Bright |
| Sep | 3.1 | Moderate |
| Oct | 1.9 | Dim |
| Nov | 1.0 | Dim |
| Dec | 0.7 | Dim |
Where is Corner Brook?
Corner Brook sits at 49.0°N, 58.0°W, 17 m above sea level, in Canada. The nearest listed city is Saint-Pierre, 275 km away.
Topography around Corner Brook
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Corner Brook.
Within 3 km, the terrain around Corner Brook has significant variations in elevation — a maximum elevation change of 347 m around an average of 99 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 657 m; within 80 km, large variations in elevation — a maximum elevation change of 809 m.
The land around Corner Brook is covered by trees (47%) and water (27%) within 3 km, trees (67%) and grassland (21%) within 16 km, and trees (44%), water (30%) and grassland (24%) within 80 km.
Canada travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 83% of US
- price level, 2025
- GDP per capita
- $55,698
- 2025
- Happiness
- 6.7 / 10
- World Happiness, 2025
- Safe drinking water
- 97%
- of population, 2024
- Homicide rate
- 2
- per 100k, 2023
- Road deaths
- 5.3
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Corner Brook (48.95°, -57.952°, elevation 17 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).