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Saskatoon weather by month: averages, rainfall & climate trends

Seasons run to extremes in Saskatoon: monthly means span 35.1°C between the coldest month and the warmest. This is a dry climate by most measures, though not a rainless one. Saskatoon weather by month: average temperatures, rainfall, extremes and how the climate has changed since 1940.

Today vs average

+9.0°Chigh well above average

19° / 0°Today
10° / 0°Average
see today in detail →

How it's changed

+0.3°Caverage temperature, 2016–2025 vs 1940–1949average temperature vs 1940–49186frost days a year now (2016–2025) · 183 in the 1940sfrost days a year · 183 in the 1940s14days above 30°C a year now (2016–2025) · 11 in the 1940sdays above 30°C · 11 in the 1940s+0.3°C vs the 1940s · see how it's changed →
Weather by montha typical year, averaged over the full recordJanuary, rain 19 mmhigh −11°low −20°February, rain 15 mmhigh −8°low −18°March, rain 22 mmhigh −1°low −11°April, rain 31 mmhigh 10°low −2°May, rain 51 mmhigh 19°low 5°June, rain 74 mmhigh 23°low 10°July, rain 64 mmhigh 25°low 13°August, rain 51 mmhigh 25°low 12°September, rain 38 mmhigh 19°low 7°October, rain 26 mmhigh 11°low 0°November, rain 22 mmhigh −1°low −9°December, rain 19 mmhigh −9°low −17°wettest month June, 74 mm · 433 mm a yearsee month by month →

Right now

What it's doing today vs the historical average for this date.
Clear

Right now

15.7°

13°feels like
48%humidity
5°dew point
11 km/hfrom S
UV index0.1
sunrise07:43sunset17:59day length10h 17m
TodayClear19°0°
ThuClear17°5°
FriOvercast18°3°
SatOvercast4°−2°
SunOvercast2°−5°
MonOvercast4°−3°
TueClear6°−2°

On this date: October 21

Today (forecast)
19° / 0°
Average for October 21
10° / 0°

High well above average · +9.0°C

  • Highest since 1940: 21.5° · 2014
  • Lowest since 1940: −16.2° · 2002
  • One year ago: 10° / −3°

Every October 21 in history, coldest to hottest

▲ Daily highs▼ Daily lows

Dots show daily highs (top) and lows (bottom) for each October 21 on record (n = 87). Outlined dots are today's forecast.

Area we sample

Each city's history comes from one ERA5 grid cell, about 28 km across, shown by the dashed box. Near mountains or coasts, conditions can vary across the cell.

Location & data

Historical weather for Saskatoon is sampled from the ECMWF ERA5 reanalysis at 52.13°N, 106.67°W, with daily records since 1940.

Coordinates
52.13°N, 106.67°W
Time zone
America/Regina
Period
1940–2026
Data source
ERA5 (ECMWF)

Last 30 days

21 of the last 31 days were warmer than the historical average for that date. Average difference: +1.8°C.

Each bar is one day, from morning low to afternoon high. Warm-colored bars are days whose mean ran above average; cool bars ran below. The dot inside the bar is the daily mean. The shaded band is the typical 10–90% range expected for that date. Average = the day's mean temperature averaged across every year of record (1940–2026) for that calendar date.

This date over the years

One dot per year, showing the mean temperature on this calendar date. Dots are warmer or cooler than the long-term average (dashed line); the shaded band is the typical 10–90% range, and the highlighted dot is today's forecast. Based on ERA5 reanalysis: modelled estimates, not station readings.

Weather by month

Average temperatures and rainfall for each month: a typical year, from the full record.

Climate overview

The year peaks in July, at around 25.5°C by mid-afternoon, with nights around 12.9°C. In January, the coolest month, afternoons reach about −11.3°C and nights dip to −20.3°C. Around 185 days a year dip below freezing.

The yearly total for Saskatoon comes to about 433 mm; monthly amounts range from 15 mm in February up to 74 mm in June.

Comparing the record's first decade with its most recent one, Saskatoon now averages 0.3°C warmer than it did in the 1940s. The year-by-year charts below trace that shift in detail.

Climate graph (climograph)

July is the warmest month, January the coolest: a yearly swing of 35°C. Wettest month: June (~74 mm). Whole year averages ~433 mm of rain.

Bars = average monthly rainfall (right axis). Lines = average daily high and low (left axis). Average = each month's value averaged across every year of record (1940–2026).

Rainy days by month

About 53 rainy days a year: most in June (~8), fewest in February (~2).

Bars = average number of days with ≥ 2 mm per month. Hover for the monthly rainfall total.

Monthly wind

Average daily peak wind at 10 m, by month.

Monthly solar energy

Average daily incoming solar energy in megajoules per square metre: the record's own proxy for how sunny the month is.

Saskatoon month by month: what to expect

Typical conditions for each month, averaged across the full record (since 1940). Daylight is the time from sunrise to sunset. Highest and Lowest are the most extreme values in the ERA5 dataset (modelled since 1940), so they can differ from official weather-station readings.

MonthAvg highAvg lowRainRainy daysDaylightHighestLowest
January−11.3°−20.3°19 mm38.0 h8.2° (2024)−47.0° (1950)
February−8.3°−17.7°15 mm29.6 h10.1° (1991)−44.6° (2019)
March−1.3°−11.1°22 mm311.5 h19.8° (1966)−39.3° (1962)
April10.2°−2.0°31 mm413.6 h30.9° (1980)−26.0° (1954)
May18.6°5.0°51 mm615.5 h34.6° (1986)−12.1° (1954)
June22.5°10.4°74 mm816.5 h38.8° (1988)−0.3° (1967)
July25.5°12.9°64 mm716.1 h38.1° (1964)2.7° (1945)
August25.0°11.6°51 mm614.5 h38.3° (2003)0.0° (2004)
September19.3°6.5°38 mm512.4 h36.7° (1940)−7.3° (1961)
October11.1°0.4°26 mm310.3 h28.9° (1957)−22.5° (1991)
November−0.8°−8.6°22 mm38.5 h18.9° (2016)−33.5° (1950)
December−8.6°−17.0°19 mm37.5 h11.1° (1997)−42.8° (1990)

How it's changed

Year-by-year signals from 1940 to today.

Climate stripes

Annual mean shifted from 1940–1949 to 2016–2025 by +0.3°C.

Each vertical stripe is one year. Color encodes how much that year's annual mean differed from the long-term average. Average = each year's annual mean compared to the average of all years (1940–2026). cooler ← → warmer

Annual mean temperature

Long-term trend: +0.11°C per decade.

One point per year, showing the temperature averaged across the whole year. The dashed line is the least-squares long-term trend. Based on ERA5 reanalysis: modelled estimates, not station readings.

Seasonal warming

Dec–Feb is warming fastest: +0.28°C per decade.

Each faint line is one three-month period's average per year; the bold dashed line is its long-term trend. Different parts of the year often warm at different rates. Based on ERA5 reanalysis: modelled estimates, not station readings.

Hot days vs frost days

Days ≥ 30°C per year: 11.3 early in the record → 13.7 recently. Frost days: 183 → 186.

Thin lines are raw yearly counts; thick lines are the smoothed trend that removes year-to-year noise. The hot-day threshold is auto-picked per city so the line actually moves. Average = a centered 5-year rolling average to smooth weather noise.

Yearly hot & cold extremes

Hottest day since 1940 in 1988, coldest in 1950: 38.8°C / −47.0°C.

One point per year: the single hottest and coldest day recorded that year.

Annual rainfall

~433 mm/year on average. Last decade: −0% vs that average. Long-term trend: +10 mm per decade.

One bar per year of total rainfall. Dashed line is the long-term average. Average = the average annual rainfall across every year of record (1940–2026).

Day-by-day grid

Each tiny square is one calendar day across the full record, about 30,000 days per city. Use the mode switch above the chart: Anomaly colors each day by how far it ran from the historical average for that date (red = warmer, blue = cooler), Daily mean temp shows the absolute mean temperature for the day (useful to see seasons and heatwaves), and Precipitation shows daily rainfall (useful to spot wet/dry seasons and droughts). Average = the long-term average for that calendar date (1940–2026).

Frequently asked questions about Saskatoon

Which is the warmest month in Saskatoon?
On long-term average, the warmest month in Saskatoon is July (mean daily temperature of about 18.8°C) and the coolest is January (about −16.3°C).
How does today's temperature in Saskatoon compare to the historical average?
On October 21, 2026, Saskatoon is forecast to reach a high of 18.8°C and a low of 0.2°C. The long-term average for this date (the full record since 1940) is a high of 9.8°C and a low of −0.2°C, so today's high is 9.0°C warmer than that average.
How much has Saskatoon warmed since 1940?
Comparing the first decade of the record (1940–1949) with the most recent (2016–2025), the annual mean temperature in Saskatoon is about 0.3°C warmer.
How much does it rain in Saskatoon?
Saskatoon receives about 433 mm of precipitation per year on long-term average, with June typically the wettest month.
What is the average temperature in Saskatoon?
Over the full record (since 1940), the annual mean temperature in Saskatoon is about 2.5°C. The warmest month is July and the coolest is January.
What are the average temperatures in Saskatoon by month?
Average daily highs and lows for each month in Saskatoon (°C, full record since 1940): January −11°/−20°, February −8°/−18°, March −1°/−11°, April 10°/−2°, May 19°/5°, June 23°/10°, July 25°/13°, August 25°/12°, September 19°/7°, October 11°/0°, November −1°/−9°, December −9°/−17°.
What is the weather like in Saskatoon in summer?
Summer in Saskatoon (June to August) is pleasantly warm. Afternoons run 23–25°C and nights 10–13°C; July is the warmest month. Rain falls on about 7 days a month, adding up to around 63 mm. It is the wettest season of the year.
What is the weather like in Saskatoon in winter?
In winter, December through February, Saskatoon is freezing. Expect −11 to −8°C by day and −20 to −17°C at night, with January the coldest month. Snow is steady at around 18 mm of precipitation a month, spread over roughly 3 days. It is the driest season of the year.
What is the weather like in Saskatoon in spring?
In spring, March through May, Saskatoon is on the cool side. March starts at −1°C by day and −11°C at night; by May it is 19°C and 5°C. Rain and snow rise from 22 mm on 3 days in March to 51 mm on 6 days in May.
What is the weather like in Saskatoon in autumn?
Autumn in Saskatoon (September to November) is on the cool side. It cools from 19°C by day and 7°C at night in September to −1°C and −9°C in November. Rain and snow ease through the season: 38 mm on 5 days in September, 22 mm on 3 days in November.
How many days a year does it rain in Saskatoon?
On long-term average, Saskatoon has about 53 days a year with at least 2 mm of rain or snow. The annual total is roughly 433 mm.

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