Climate and average weather in Saint George
In Saint George, the summers are sweltering, dry, and mostly clear and the winters are cool, snowy, and mostly clear.
Over the course of the year, the temperature in Saint George typically varies from 29°F to 97°F, and is rarely below 20°F or above 103°F. July is the hottest month of the year, while December is the coldest.
Based on the travel score, the best times of year to visit Saint George for warm-weather activities are from late March to late May and late September to early November.
- Hottest
- Jul
- 97°
- Coldest
- Dec
- 29°
- Wettest
- Feb
- 1.7 in
- Driest
- Jun
- 0.1 in
- Rain / yr
- 10.2 in
- 41 wet days
- Daylight
- 9.4–14.6 h
- shortest–longest
- Elevation
- 2,700 ft
- 37.1°N
- Clearest
- Jun
- 20% cloud
Saint George is city in Washington County, Utah, United States.
- Density
- 367/km²
- people per km²
- Founded
- 1861
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Saint George 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 March to late May.
Temperature through the year
Daily average highs and lows in Saint George, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.
The hot season lasts 3.9 months, from May 27 to September 23, with daily high temperatures above 85°F. The hottest month of the year in Saint George is July, with an average high of 97°F and low of 72°F.
The cool season lasts 3.3 months, from November 22 to February 28, with daily high temperatures below 57°F. The coldest month of the year in Saint George is December, with an average low of 29°F and high of 49°F.
Days typically run about 24°F warmer than nights, with the widest day–night swing (around 28°F) in June.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 51 | 55 | 63 | 71 | 81 | 92 | 97 | 95 | 87 | 74 | 60 | 49 |
| Avg low (°F) | 30 | 34 | 40 | 46 | 55 | 64 | 72 | 70 | 61 | 48 | 37 | 29 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| Jan | 51 | 30 |
| Feb | 55 | 34 |
| Mar | 63 | 40 |
| Apr | 71 | 46 |
| May | 81 | 55 |
| Jun | 92 | 64 |
| Jul | 97 | 72 |
| Aug | 95 | 70 |
| Sep | 87 | 61 |
| Oct | 74 | 48 |
| Nov | 60 | 37 |
| Dec | 49 | 29 |
How hot and cold Saint George 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 hottest afternoons, once humidity is folded in, Saint George feels like about 97°F (around July 7). About 91 days a year carry some heat stress, peaking in July.
On the coldest nights, wind chill pulls the feels-like down to about 24°F (around December 25), with roughly 101 freezing days a year (feels-like at or below 32°F), worst in December.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feels-like high (°F) | 50 | 55 | 63 | 71 | 81 | 92 | 97 | 95 | 87 | 74 | 60 | 49 |
| Air high (°F) | 51 | 55 | 63 | 71 | 81 | 92 | 97 | 95 | 87 | 74 | 60 | 49 |
| Feels-like low (°F) | 26 | 30 | 37 | 43 | 55 | 64 | 72 | 70 | 61 | 47 | 33 | 26 |
| Air low (°F) | 30 | 34 | 40 | 46 | 55 | 64 | 72 | 70 | 61 | 48 | 37 | 29 |
| Feels-like high (°F) | Air high (°F) | Feels-like low (°F) | Air low (°F) | |
|---|---|---|---|---|
| Jan | 50 | 51 | 26 | 30 |
| Feb | 55 | 55 | 30 | 34 |
| Mar | 63 | 63 | 37 | 40 |
| Apr | 71 | 71 | 43 | 46 |
| May | 81 | 81 | 55 | 55 |
| Jun | 92 | 92 | 64 | 64 |
| Jul | 97 | 97 | 72 | 72 |
| Aug | 95 | 95 | 70 | 70 |
| Sep | 87 | 87 | 61 | 61 |
| Oct | 74 | 74 | 47 | 48 |
| Nov | 60 | 60 | 33 | 37 |
| Dec | 49 | 49 | 26 | 29 |
Average hourly temperature in Saint George
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 July afternoons, near 97°F, and coldest before dawn in December, near 29°F.
Saint George weather by month
Every month at a glance. Click a month for its detailed page.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 51° / 30° | 1.4 | 5.1 | 2.1 | 9.7 | 2.8 |
| Feb | 55° / 34° | 1.7 | 6.1 | 1.9 | 10.6 | 4.0 |
| Mar | 63° / 40° | 1.3 | 5.6 | 1 | 11.7 | 6.4 |
| Apr | 71° / 46° | 0.7 | 3 | 0.4 | 12.9 | 8.0 |
| May | 81° / 55° | 0.3 | 2.1 | 0 | 14 | 7.8 |
| Jun | 92° / 64° | 0.1 | 0.5 | 0 | 14.5 | 4.4 |
| Jul | 97° / 72° | 0.4 | 2.1 | 0 | 14.3 | 2.6 |
| Aug | 95° / 70° | 0.5 | 2.9 | 0 | 13.4 | 3.2 |
| Sep | 87° / 61° | 0.8 | 2.7 | 0 | 12.3 | 6.1 |
| Oct | 74° / 48° | 1.0 | 3.4 | 0 | 11 | 8.4 |
| Nov | 60° / 37° | 0.9 | 3.2 | 0.6 | 10 | 5.9 |
| Dec | 49° / 29° | 1.1 | 4.7 | 1.7 | 9.5 | 2.5 |
Chance of rain
How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.
Saint George gets about 10.2 in of precipitation a year. On a typical day the chance of rain is mostly dry, but that rises and falls sharply with the seasons.
The wetter season lasts 4.6 months, from around Nov 21 to Apr 10, peaking in February at about 25% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jun 21.
February is the wettest month by volume, with 1.7 in over about 6 wet days; June is the driest, with 0.1 in. 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 (%) | 16 | 21 | 18 | 11 | 7 | 2 | 7 | 9 | 9 | 10 | 11 | 16 |
| Rain days | 5 | 6 | 6 | 3 | 2 | 1 | 2 | 3 | 3 | 3 | 3 | 5 |
| Rain on a day (%) | Rain days | |
|---|---|---|
| Jan | 16 | 5 |
| Feb | 21 | 6 |
| Mar | 18 | 6 |
| Apr | 11 | 3 |
| May | 7 | 2 |
| Jun | 2 | 1 |
| Jul | 7 | 2 |
| Aug | 9 | 3 |
| Sep | 9 | 3 |
| Oct | 10 | 3 |
| Nov | 11 | 3 |
| Dec | 16 | 5 |
Monthly rainfall
Over a full year, Saint George collects about 10.2 in of rain across 41 wet days — roughly 0.9 in in an average month.
It doesn’t fall evenly. February is the wettest month with 1.7 in, while June is the driest at just 0.1 in. The three wettest months alone bring about 43% 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 (in) | 1.4 | 1.7 | 1.3 | 0.7 | 0.3 | 0.1 | 0.4 | 0.5 | 0.8 | 1.0 | 0.9 | 1.1 |
| Rain days | 5 | 6 | 6 | 3 | 2 | 1 | 2 | 3 | 3 | 3 | 3 | 5 |
| Snow days | 2 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
| Rainfall (in) | Rain days | Snow days | |
|---|---|---|---|
| Jan | 1.4 | 5 | 2 |
| Feb | 1.7 | 6 | 2 |
| Mar | 1.3 | 6 | 1 |
| Apr | 0.7 | 3 | 0 |
| May | 0.3 | 2 | 0 |
| Jun | 0.1 | 1 | 0 |
| Jul | 0.4 | 2 | 0 |
| Aug | 0.5 | 3 | 0 |
| Sep | 0.8 | 3 | 0 |
| Oct | 1.0 | 3 | 0 |
| Nov | 0.9 | 3 | 1 |
| Dec | 1.1 | 5 | 2 |
Snow in Saint George
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.
Saint George averages about 8 snowy days a year. Snow season runs roughly Nov 10 to Apr 9 — about 5 months.
January is snowiest, with roughly 2.0 days of snow and an estimated 2 in of snowfall. Over the year that adds up to an estimated 11 in of snow.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Snow days | 2 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
| Snowfall (in) | 2 | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 |
| Snow days | Snowfall (in) | |
|---|---|---|
| Jan | 2 | 2 |
| Feb | 2 | 3 |
| Mar | 1 | 2 |
| Apr | 0 | 0 |
| May | 0 | 0 |
| Jun | 0 | 0 |
| Jul | 0 | 0 |
| Aug | 0 | 0 |
| Sep | 0 | 0 |
| Oct | 0 | 0 |
| Nov | 1 | 1 |
| Dec | 2 | 3 |
Clouds and sunshine
How often the daytime sky is clear, partly cloudy or overcast.
In Saint George, 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 May 20 and lasts for 6.1 months, ending around November 20. The clearest month is September, when the sky is clear, mostly clear, or partly cloudy 89% of the time on average.
The cloudier part of the year begins around November 21 and lasts for 5.3 months, ending around April 30. The cloudiest month is February, when it is overcast or mostly cloudy 39% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 65 | 61 | 64 | 71 | 77 | 89 | 83 | 86 | 89 | 83 | 76 | 66 |
| Cloudier (%) | 35 | 39 | 36 | 29 | 23 | 11 | 17 | 14 | 11 | 17 | 24 | 34 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| Jan | 65 | 35 |
| Feb | 61 | 39 |
| Mar | 64 | 36 |
| Apr | 71 | 29 |
| May | 77 | 23 |
| Jun | 89 | 11 |
| Jul | 83 | 17 |
| Aug | 86 | 14 |
| Sep | 89 | 11 |
| Oct | 83 | 17 |
| Nov | 76 | 24 |
| Dec | 66 | 34 |
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 21, brings about 14 h 36 min of light; the shortest, around December 20, only 9 h 24 min — a swing of roughly 5 h 12 min.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 9.7 | 10.6 | 11.7 | 12.9 | 14.0 | 14.5 | 14.3 | 13.4 | 12.3 | 11.0 | 10.0 | 9.5 |
| Sunrise (AM) | 7:52 | 7:31 | 6:53 | 6:06 | 5:31 | 5:19 | 5:30 | 5:55 | 6:22 | 6:48 | 7:20 | 7:47 |
| Sunset (PM) | 5:35 | 6:06 | 6:35 | 7:03 | 7:30 | 7:51 | 7:49 | 7:21 | 6:36 | 5:50 | 5:19 | 5:14 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| Jan | 9.7 | 7:52 | 5:35 |
| Feb | 10.6 | 7:31 | 6:06 |
| Mar | 11.7 | 6:53 | 6:35 |
| Apr | 12.9 | 6:06 | 7:03 |
| May | 14.0 | 5:31 | 7:30 |
| Jun | 14.5 | 5:19 | 7:51 |
| Jul | 14.3 | 5:30 | 7:49 |
| Aug | 13.4 | 5:55 | 7:21 |
| Sep | 12.3 | 6:22 | 6:36 |
| Oct | 11.0 | 6:48 | 5:50 |
| Nov | 10.0 | 7:20 | 5:19 |
| Dec | 9.5 | 7:47 | 5:14 |
Sunny days
How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.
Saint George averages about 19 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 14 and 25 days.
The sunnier stretch runs 6.1 months, from around May 21 to Nov 21. The sunniest month is June, with roughly 24 sunny days (brilliant).
The greyest month is February, down near 14 sunny days — about 40% fewer than the June peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sunny days | 16 | 13 | 15 | 16 | 19 | 24 | 21 | 22 | 24 | 22 | 19 | 16 |
| Sky | Bright | Mixed | Bright | Bright | Bright | Brilliant | Bright | Bright | Brilliant | Bright | Bright | Bright |
| Sunny days | Sky | |
|---|---|---|
| Jan | 16 | Bright |
| Feb | 13 | Mixed |
| Mar | 15 | Bright |
| Apr | 16 | Bright |
| May | 19 | Bright |
| Jun | 24 | Brilliant |
| Jul | 21 | Bright |
| Aug | 22 | Bright |
| Sep | 24 | Brilliant |
| Oct | 22 | Bright |
| Nov | 19 | Bright |
| Dec | 16 | Bright |
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 Saint George, the air stays dry or comfortable essentially all year. Even in August, the muggiest month, it feels humid or worse only about 4% of the time — humidity is not something you need to plan around here.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 100 | 100 | 100 | 100 | 100 | 100 | 90 | 89 | 93 | 100 | 100 | 100 |
| Comfortable (%) | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 8 | 5 | 0 | 0 | 0 |
| Humid (%) | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 4 | 2 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | |
|---|---|---|---|
| Jan | 100 | 0 | 0 |
| Feb | 100 | 0 | 0 |
| Mar | 100 | 0 | 0 |
| Apr | 100 | 0 | 0 |
| May | 100 | 0 | 0 |
| Jun | 100 | 0 | 0 |
| Jul | 90 | 7 | 3 |
| Aug | 89 | 8 | 4 |
| Sep | 93 | 5 | 2 |
| Oct | 100 | 0 | 0 |
| Nov | 100 | 0 | 0 |
| Dec | 100 | 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.
Wind in Saint George is steady company: average speeds sit near 4 mph — calm — in every month of the year, with no meaningful windy or calm season.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (mph) | 4 | 4 | 4 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 4 | 4 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (mph) | Feels | |
|---|---|---|
| Jan | 4 | calm |
| Feb | 4 | calm |
| Mar | 4 | calm |
| Apr | 5 | calm |
| May | 5 | calm |
| Jun | 5 | calm |
| Jul | 4 | calm |
| Aug | 4 | calm |
| Sep | 4 | calm |
| Oct | 4 | calm |
| Nov | 4 | calm |
| Dec | 4 | calm |
Best time to visit Saint George
To characterize how pleasant the weather is in Saint George throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.
Around early April, Saint George is still near the start of its best-weather window — great conditions with the peak-season crowds not yet at full swing.
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 64°F and 82°F. Based on this score, the best times of year to visit Saint George for general outdoor tourist activities run from late March to late May and again from late September to early November, with a peak score in the second week of October.
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) | 2.8 | 4.1 | 6.4 | 8.0 | 7.7 | 4.5 | 2.6 | 3.3 | 6.1 | 8.3 | 5.9 | 2.6 |
| Rating | poor | fair | good | ideal | ideal | fair | poor | poor | good | ideal | good | poor |
| Travel score (0–10) | Rating | |
|---|---|---|
| Jan | 2.8 | poor |
| Feb | 4.1 | fair |
| Mar | 6.4 | good |
| Apr | 8.0 | ideal |
| May | 7.7 | ideal |
| Jun | 4.5 | fair |
| Jul | 2.6 | poor |
| Aug | 3.3 | poor |
| Sep | 6.1 | good |
| Oct | 8.3 | ideal |
| Nov | 5.9 | good |
| Dec | 2.6 | poor |
The beach/pool score favors clear, rainless days with daytime highs between 75°F and 93°F. Based on this score, the best times of year to visit Saint George for hot-weather activities run from late April to late June and again from late August to mid October, with a peak score in the last week of September.
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 Saint George, 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 July (highs near 97°F), the essentials are light clothes and sun protection. In the cold season around December (highs near 49°F), pack a warm layer.
In July, Saint George sees daytime highs around 97°F and nights near 72°F. Pack light clothes and sun protection.
UV index (midday) in Saint George 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 Saint George peaks around July 15 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 2 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 3 | 4 | 5 | 6 | 8 | 11 | 11 | 10 | 8 | 6 | 3 | 2 |
| Level | Moderate | Moderate | Moderate | High | Very high | Extreme | Extreme | Extreme | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 3 | Moderate |
| Feb | 4 | Moderate |
| Mar | 5 | Moderate |
| Apr | 6 | High |
| May | 8 | Very high |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 10 | Extreme |
| Sep | 8 | Very high |
| Oct | 6 | High |
| Nov | 3 | Moderate |
| Dec | 2 | Moderate |
Average hourly UV index in Saint George
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 July the burn window is concentrated in the middle of the day: about 9 hours a day reach index 3 (protection recommended), and 6.5 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 | 3 | 5 | 6 | 8 | 8.5 | 9 | 8 | 7 | 5 | 1.5 | 0 |
| UV ≥ 6 (h/day) | 0 | 0 | 0 | 0 | 4.5 | 6 | 6.5 | 5.5 | 4 | 0 | 0 | 0 |
| UV ≥ 3 (h/day) | UV ≥ 6 (h/day) | |
|---|---|---|
| Jan | 0 | 0 |
| Feb | 3 | 0 |
| Mar | 5 | 0 |
| Apr | 6 | 0 |
| May | 8 | 4.5 |
| Jun | 8.5 | 6 |
| Jul | 9 | 6.5 |
| Aug | 8 | 5.5 |
| Sep | 7 | 4 |
| Oct | 5 | 0 |
| Nov | 1.5 | 0 |
| Dec | 0 | 0 |
Growing season
The growing season in Saint George typically lasts about 298 days, from around February 5 to November 29 — the span where a frost-free day is more likely than not. It is reliably frost-free from March 15 to November 4.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Frost-free chance (%) | 37 | 60 | 89 | 98 | 100 | 100 | 100 | 100 | 100 | 99 | 73 | 36 |
| Frost nights | 31 | 28 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 25 | 31 |
| Frost-free chance (%) | Frost nights | |
|---|---|---|
| Jan | 37 | 31 |
| Feb | 60 | 28 |
| Mar | 89 | 13 |
| Apr | 98 | 0 |
| May | 100 | 0 |
| Jun | 100 | 0 |
| Jul | 100 | 0 |
| Aug | 100 | 0 |
| Sep | 100 | 0 |
| Oct | 99 | 0 |
| Nov | 73 | 25 |
| Dec | 36 | 31 |
Growing degree days
Growing degree days tally heat above 50°F: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Saint George banks about 4,875 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around July.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Growing degree days (°F·days) | 0 | 0 | 63 | 254 | 564 | 845 | 1,058 | 1,006 | 718 | 346 | 21 | 0 |
| Growing degree days (°F·days) | |
|---|---|
| Jan | 0 |
| Feb | 0 |
| Mar | 63 |
| Apr | 254 |
| May | 564 |
| Jun | 845 |
| Jul | 1,058 |
| Aug | 1,006 |
| Sep | 718 |
| Oct | 346 |
| Nov | 21 |
| 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.
Saint George receives about 5.6 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 2.7 and 8.5 kWh/m².
The brighter stretch of the year lasts 6.3 months, from around Mar 18 to Sep 26. The brightest month is June, averaging about 8.4 kWh/m² (intense).
The dimmest month is December, down near 2.8 kWh/m² — roughly 67% less than the June peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 3.0 | 4.0 | 5.6 | 7.0 | 7.9 | 8.5 | 7.8 | 7.0 | 6.1 | 4.7 | 3.4 | 2.8 |
| Level | Moderate | Moderate | Bright | Intense | Intense | Intense | Intense | Intense | Intense | Bright | Moderate | Moderate |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| Jan | 3.0 | Moderate |
| Feb | 4.0 | Moderate |
| Mar | 5.6 | Bright |
| Apr | 7.0 | Intense |
| May | 7.9 | Intense |
| Jun | 8.5 | Intense |
| Jul | 7.8 | Intense |
| Aug | 7.0 | Intense |
| Sep | 6.1 | Intense |
| Oct | 4.7 | Bright |
| Nov | 3.4 | Moderate |
| Dec | 2.8 | Moderate |
Where is Saint George?
Saint George sits at 37.1°N, 113.6°W, 2,700 ft above sea level, in United States. The nearest listed city is Washington, 4.3 mi away.
Topography around Saint George
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Saint George.
Within 2 miles, the terrain around Saint George has only modest variations in elevation — a maximum elevation change of 787 ft around an average of 2,805 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 2,959 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 9,045 ft.
The land around Saint George is covered by artificial surfaces (45%) within 2 miles, grassland (38%), shrubs (25%) and bare terrain (25%) within 10 miles, and shrubs (36%), grassland (26%) and trees (22%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- 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 Saint George (37.1041°, -113.5841°, elevation 2,700 ft), 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. 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).