Chestermere climate — normals and trends
Chestermere (Canada) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 4.0 °C and it receives 475 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is July (17.0 °C on average) and the coldest is January (-9.5 °C). Rainfall peaks in June.
Chestermere averages 186 frost days, 6 hot days (≥ 30 °C) and 91 rainy days per year.
Chestermere has warmed by +2.0 °C between 1940 and 2025, or +0.24 °C per decade. This trend is statistically significant.
The number of frost days there went from about 192 to 180 per year over the period.
The hottest day of the period reached 38.5 °C (on 10 August 2018) and the coldest -44.6 °C (on 13 January 2024).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
ChestermereAlberta
- coords
- 51.03°, -113.82°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
4.0°C
Average daily high
9.9°C
Average daily low
-1.6°C
Annual rainfall
475mm
Sunshine / day
9.5h
Mean relative humidity
65%
Average peak wind
16.3km/h
Seasonal range
26.5°C
Frost days (< 0 °C)
186 d/yr
Hot days (≥ 30 °C)
6 d/yr
Rainy days (≥ 1 mm)
91 d/yr
Annual snowfall
89.8 cm
Average feels-like high
6.5 °C
Average feels-like low
-5.4 °C
Average peak gust
32.9 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
14.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.27 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
38.5 °C
10 August 2018
Coldest day
-44.6 °C
13 January 2024
Wettest day
92 mm
13 June 1970
Windiest day
50.6 km/h
19 November 1962
Strongest gust
96.5 km/h
27 November 2011
Hottest feels-like
36.7 °C
29 June 2021
Coldest feels-like
-50.1 °C
13 January 2024
Snowiest day
28.6 cm
27 April 1974
Sunniest day
16.1 h
18 June 1960
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 0.7 °C | +5.2 °C | 13 mm | -3 mm |
| Feb | -5.6 °C | -4.1 °C | 12 mm | -4 mm |
| Mar | 6.0 °C | +2.8 °C | 18 mm | -4 mm |
| Apr | 12.9 °C | +2.4 °C | 46 mm | +10 mm |
| May | 20.2 °C | +3.8 °C | 64 mm | -4 mm |
| Jun | 21.8 °C | +1.9 °C | 91 mm | -2 mm |
| Jul | 21.7 °C | -1.8 °C | 143 mm | +79 mm |
| Aug | 24.6 °C | +1.8 °C | 46 mm | -12 mm |
| Sep | 23.9 °C | +6.1 °C | 8 mm | -37 mm |
| Oct | 13.0 °C | +1.7 °C | 19 mm | -7 mm |
| Nov | 5.0 °C | +2.8 °C | 29 mm | +10 mm |
| Dec | -2.1 °C | +0.9 °C | 35 mm | +20 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Chestermere?
Chestermere has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 4.0 °C and it receives 475 mm of precipitation per year.
What is the hottest day ever recorded in Chestermere?
The hottest day measured in Chestermere between 1940 and 2025 was 10 August 2018, reaching 38.5 °C.
What is the coldest day in Chestermere?
The coldest day measured in Chestermere between 1940 and 2025 was 13 January 2024, at -44.6 °C.
Does it snow in Chestermere?
Yes. Chestermere gets on average 89.8 cm of snow per year and has around 186 frost days.
Has the climate of Chestermere warmed?
Yes: Chestermere warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Chestermere?
The wettest day measured in Chestermere between 1940 and 2025 was 13 June 1970, with 92 mm of rain in 24 hours.
What was the windiest day in Chestermere?
The windiest day measured in Chestermere between 1940 and 2025 was 19 November 1962, with winds reaching 50.6 km/h.
What is the warmest month in Chestermere?
The warmest month in Chestermere is July (17.0 °C on average); the coldest is January (-9.5 °C).
How much does it rain in Chestermere?
Chestermere receives on average 475 mm of precipitation per year, spread over about 91 rainy days.
Is it sunny in Chestermere?
Chestermere gets on average 9.5 hours of sunshine per day, roughly 3,468 hours per year over 1940-2025.
What is the biggest single-day snowfall in Chestermere?
The heaviest 24-hour snowfall measured in Chestermere between 1940 and 2025 was 27 April 1974, with 28.6 cm.
Are there tropical nights in Chestermere?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Chestermere.
What was the most extreme apparent temperature in Chestermere?
In Chestermere, between 1940 and 2025, the highest apparent temperature reached 36.7 °C on 29 June 2021, and the lowest was -50.1 °C on 13 January 2024.
Compare Chestermere with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Chestermere