Climate and average weather in St. James-Assiniboia East

In St. James-Assiniboia East, the summers are warm, showery, and partly cloudy and the winters are frigid, snowy, and mostly cloudy.

Best: late May to late September

Over the course of the year, the temperature in St. James-Assiniboia East typically varies from -21°C to 25°C, and is rarely below -33°C or above 30°C. July is the hottest month of the year, while January is the coldest.

Based on the travel score, the best time of year to visit St. James-Assiniboia East for warm-weather activities is from late May to late September.

Hottest
Jul
25°
Coldest
Jan
-21°
Wettest
Jun
99 mm
Driest
Feb
14 mm
Rain / yr
599 mm
95 wet days
Daylight
7.9–16.1 h
shortest–longest
Elevation
231 m
49.9°N
Clearest
Aug
50% cloud

St. James-Assiniboia East 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 May to late September.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in St. James-Assiniboia East, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

The hot season lasts 4.6 months, from May 10 to September 26, with daily high temperatures above 16°C. The hottest month of the year in St. James-Assiniboia East is July, with an average high of 25°C and low of 14°C.

The cool season lasts 3.2 months, from November 29 to March 6, with daily high temperatures below -5°C. The coldest month of the year in St. James-Assiniboia East is January, with an average low of -21°C and high of -12°C.

Days typically run about 10°C warmer than nights, with the widest day–night swing (around 12°C) in May.

-20°20°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan-12-20
Feb-9-19
Mar-1-11
Apr10-2
May176
Jun2212
Jul2514
Aug2412
Sep197
Oct101
Nov0-8
Dec-9-16

How hot and cold St. James-Assiniboia East really feels

Feels-like highFeels-like lowactual air temp

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 -30°C (around January 18), with roughly 218 freezing days a year (feels-like at or below 0°C) 152 of them bitterly cold — worst in January.

-30°-20°-10°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan-12-12-30-20
Feb-9-9-28-19
Mar-1-1-18-11
Apr1010-7-2
May171726
Jun22221112
Jul25251414
Aug24241212
Sep191957
Oct1010-41
Nov00-14-8
Dec-9-9-24-16

Average hourly temperature in St. James-Assiniboia East

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 25°C, and coldest before dawn in January, near -21°C.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM

St. James-Assiniboia East weather by month

Every month at a glance. Click a month for its detailed page.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-12° / -21°164.95.78.40.0
Feb-9° / -19°143.74.39.70.0
Mar-1° / -11°256.24.511.50.0
Apr10° / -2°366.32.713.52.2
May17° / 8010.80.615.15.4
Jun22° / 12°9912.40166.2
Jul25° / 14°8811.5015.76.8
Aug24° / 12°779.8014.37.1
Sep19° / 699.1012.46.0
Oct10° / 478.11.910.52.2
Nov-1° / -8°2865.18.80.0
Dec-9° / -16°225.76.380.0

Chance of rain

How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.

St. James-Assiniboia East gets about 599 mm of precipitation a year. On a typical day the chance of rain is some rain, but that rises and falls sharply with the seasons.

The wetter season lasts 5.7 months, from around Apr 29 to Oct 18, peaking in June at about 44% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Feb 4.

June is the wettest month by volume, with 99 mm over about 12 wet days; February is the driest, with 14 mm. Some of the cold-season precipitation falls as snow.

0%10%20%30%40%50%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetJun 20 · 44%Feb 4 · 12%
Rain on a day (%)Rain days
Jan165
Feb144
Mar196
Apr226
May3411
Jun4112
Jul3712
Aug3210
Sep309
Oct268
Nov206
Dec186

Monthly rainfall

Over a full year, St. James-Assiniboia East collects about 599 mm of rain across 95 wet days — roughly 50 mm in an average month.

It doesn’t fall evenly. June is the wettest month with 99 mm, while February is the driest at just 14 mm. The three wettest months alone bring about 44% of the year’s total, and some of the cold-season precipitation falls as snow.

0255075100125JanFebMarAprMayJunJulAugSepOctNovDec161425368099887769472822
Rainfall (mm)Rain daysSnow days
Jan1656
Feb1444
Mar2565
Apr3663
May80111
Jun99120
Jul88120
Aug77100
Sep6990
Oct4782
Nov2865
Dec2266

Snow in St. James-Assiniboia East

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.

St. James-Assiniboia East averages about 31 snowy days a year. Snow season runs roughly Oct 1 to May 18 — about 7.6 months.

December is snowiest, with roughly 6 days of snow and an estimated 24 cm of snowfall. Over the year that adds up to an estimated 117 cm of snow.

02468JanFebMarAprMayJunJulAugSepOctNovDecsnow seasonsnow seasonDec 20
Snow daysSnowfall (cm)
Jan620
Feb415
Mar515
Apr310
May14
Jun00
Jul00
Aug00
Sep00
Oct28
Nov521
Dec624

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

How often the daytime sky is clear, partly cloudy or overcast.

In St. James-Assiniboia East, 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 14 and lasts for 5.8 months, ending around October 7. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 61% of the time on average.

The cloudier part of the year begins around October 8 and lasts for 6.2 months, ending around April 13. The cloudiest month is December, when it is overcast or mostly cloudy 72% of the time.

0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JanFebMarAprMayJunJulAugSepOctNovDecJul 29 · 66%Dec 18 · 26%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan3070
Feb2971
Mar3466
Apr4159
May4258
Jun4456
Jul5842
Aug6139
Sep5050
Oct3664
Nov3070
Dec2872

Daylight, sunrise and sunset

DaylightNight

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 13, brings about 16 h 06 min of light; the shortest, around January 1, only 7 h 54 min — a swing of roughly 8 h 12 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan8.48:284:48
Feb9.77:515:36
Mar11.56:526:25
Apr13.55:447:14
May15.14:508:00
Jun16.04:268:32
Jul15.74:438:26
Aug14.35:257:41
Sep12.46:126:34
Oct10.57:005:28
Nov8.87:514:37
Dec8.08:284:22

Sunny days

How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.

St. James-Assiniboia East averages about 7 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 4 and 12 days.

The sunnier stretch runs 3.5 months, from around Jun 25 to Oct 10. The sunniest month is August, with roughly 12 sunny days (mixed).

The greyest month is February, down near 5 sunny days — about 61% fewer than the August peak.

051015JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedAug 2012 daysFeb 164 days
Sunny daysSky
Jan5Gloomy
Feb4Gloomy
Mar7Gloomy
Apr8Mixed
May9Mixed
Jun7Gloomy
Jul10Mixed
Aug12Mixed
Sep10Mixed
Oct7Gloomy
Nov5Gloomy
Dec5Gloomy

Humidity comfort

DryComfortableHumidMuggyOppressiveMiserable

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 St. James-Assiniboia East, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 3.1 months, from around June 10 to September 11. The muggiest month is July, when the air feels humid, muggy or worse about 30% of the time.

The most comfortable stretch runs from around September 12 to June 9, and April is the most comfortable month — the air is dry or comfortable 100% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecApr 29 · 100%Jul 19 · 66%muggyhumidcomfortabledrycomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
Jan1000000
Feb1000000
Mar1000000
Apr1000000
May954100
Jun6524830
Jul353520101
Aug53271650
Sep8510410
Oct991000
Nov1000000
Dec1000000

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 St. James-Assiniboia East is steady company: average speeds sit near 15 km/hlight breeze — in every month of the year, with no meaningful windy or calm season.

05101520JanFebMarAprMayJunJulAugSepOctNovDeccalmlight breezeOct 5 · 16 km/hAug 2 · 13 km/h
Wind speed (km/h)Feels
Jan15light breeze
Feb15light breeze
Mar15light breeze
Apr15light breeze
May15light breeze
Jun14light breeze
Jul13light breeze
Aug13light breeze
Sep15light breeze
Oct15light breeze
Nov15light breeze
Dec14light breeze

Hazard calendar for St. James-Assiniboia East

In seasonPeak

When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.

St. James-Assiniboia East's rainy season runs May–October, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Best time to visit St. James-Assiniboia East

TravelBeach/poolTemperatureCloudsPrecipitation

To characterize how pleasant the weather is in St. James-Assiniboia East throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.

Around late May, St. James-Assiniboia East 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 18°C and 28°C. Based on this score, the best time of year to visit St. James-Assiniboia East for general outdoor tourist activities is from late May to late September, with a peak score in the first week of August.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationAug 4 · 7.1

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).

Travel score (0–10)Rating
Jan0.0poor
Feb0.0poor
Mar0.0poor
Apr2.2poor
May5.3fair
Jun6.2good
Jul6.8good
Aug7.1good
Sep6.0good
Oct2.3poor
Nov0.0poor
Dec0.0poor

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 St. James-Assiniboia East for hot-weather activities is from late June to late August, with a peak score in the first week of August.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationAug 2 · 6.4

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 St. James-Assiniboia East, by month

EssentialRecommendedOptional

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 25°C), the essentials are light clothes, rain gear and sun protection. In the cold season around January (highs near -12°C), pack a warm layer and a heavy coat.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In July, St. James-Assiniboia East sees daytime highs around 25°C and nights near 14°C. Pack sun protection. Worth having: light clothes and rain gear. About 12 days see rain.

UV index (midday) in St. James-Assiniboia East by month

LowModerateHighVery highExtreme

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 St. James-Assiniboia East peaks around June 18 at about 7 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 20 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJun 18UV 7Dec 20UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May5High
Jun7High
Jul6High
Aug6High
Sep4Moderate
Oct3Moderate
Nov1Low
Dec1Low

Average hourly UV index in St. James-Assiniboia East

LowModerateHighVery highExtreme

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 3.5 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM
UV ≥ 3 (h/day)UV ≥ 6 (h/day)
Jan00
Feb00
Mar00
Apr4.50
May6.50
Jun83.5
Jul71
Aug71
Sep4.50
Oct00
Nov00
Dec00

Air quality in St. James-Assiniboia East by month

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see which months the air is worst, not just the yearly average.

Air quality in St. James-Assiniboia East is worst in July — around 17 µg/m³ PM2.5 (moderate), about 3.1× the cleanest month (October, 5 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 2316 µg/m³Oct 235 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb8Good
Mar12Good
Apr12Good
May11Good
Jun11Good
Jul17Moderate
Aug16Moderate
Sep10Good
Oct5Good
Nov6Good
Dec6Good
Almanac & agriculture

Growing season

Chance of a frost-free dayTypical season (≥50%)

The growing season in St. James-Assiniboia East typically lasts about 180 days, from around April 23 to October 19 — the span where a frost-free day is more likely than not. It is reliably frost-free from May 21 to September 22.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecgrowing seasonMar 1910%Apr 2350%May 2190%Sep 2290%Oct 1950%Nov 1410%
Frost-free chance (%)Frost nights
Jan131
Feb228
Mar1031
Apr3830
May8520
Jun1000
Jul1000
Aug1000
Sep947
Oct5531
Nov1130
Dec331

Growing degree days

Degree days (base 10°C)Frost-free shaded

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. St. James-Assiniboia East banks about 903 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around July.

02004006008001,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan0
Feb0
Mar0
Apr0
May52
Jun212
Jul289
Aug258
Sep92
Oct0
Nov0
Dec0

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.

St. James-Assiniboia East receives about 3.7 kWh/m² a day of solar energy on average — moderate — with a clear seasonal swing between 1.0 and 6.1 kWh/m².

The brighter stretch of the year lasts 6.1 months, from around Mar 13 to Sep 15. The brightest month is July, averaging about 6.1 kWh/m² (intense).

The dimmest month is December, down near 1.1 kWh/m² — roughly 82% less than the July peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseJul 146.1 kWhDec 161.0 kWh
Solar energy (kWh/m²)Level
Jan1.4Dim
Feb2.5Moderate
Mar3.9Moderate
Apr5.2Bright
May5.8Bright
Jun6.0Bright
Jul6.1Intense
Aug5.3Bright
Sep3.8Moderate
Oct2.2Moderate
Nov1.4Dim
Dec1.1Dim

Where is St. James-Assiniboia East?

St. James-Assiniboia East sits at 49.9°N, 97.2°W, 231 m above sea level, in Canada. The nearest listed city is Winnipeg, 6.0 km away.

West FargoFargo

Topography around St. James-Assiniboia East

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of St. James-Assiniboia East.

Within 3 km, the terrain around St. James-Assiniboia East has only modest variations in elevation — a maximum elevation change of 28 m around an average of 236 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 38 m; within 80 km, only modest variations in elevation — a maximum elevation change of 122 m.

The land around St. James-Assiniboia East is covered by artificial surfaces (54%) and grassland (22%) within 3 km, cropland (41%), artificial surfaces (27%) and grassland (21%) within 16 km, and cropland (57%) within 80 km.

3 km
28 m
16 km
38 m
80 km
122 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
Nearby: Winnipeg 6.0 km · Fort Garry South 12 km · Steinbach 56 km · Brandon 195 km · Kenora 197 km · Grand Forks 219 km · West Fargo 336 km · Fargo 337 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
Christian 53%none 35%Muslim 5%Hindu 2%

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 St. James-Assiniboia East (49.8899°, -97.2265°, elevation 231 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. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).