Red Deer climate — normals and trends
Red Deer (Canada) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 3.0 °C and it receives 499 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 (16.5 °C on average) and the coldest is January (-11.6 °C). Rainfall peaks in June.
Red Deer averages 190 frost days, 2 hot days (≥ 30 °C) and 96 rainy days per year.
Red Deer has warmed by +1.2 °C between 1940 and 2025, or +0.13 °C per decade. This trend is statistically significant.
The hottest day of the period reached 35.3 °C (on 18 July 1941) and the coldest -42.6 °C (on 26 January 1972).
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
Red DeerAlberta
- coords
- 52.27°, -113.80°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
3.0°C
Average daily high
8.3°C
Average daily low
-2.2°C
Annual rainfall
499mm
Sunshine / day
9.3h
Mean relative humidity
70%
Average peak wind
16.8km/h
Seasonal range
28.1°C
Frost days (< 0 °C)
190 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
96 d/yr
Annual snowfall
87.5 cm
Average feels-like high
5.1 °C
Average feels-like low
-6.1 °C
Average peak gust
33.4 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
13.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.2 °C
since 1940
+0.1 °C per decade · r² = 0.12 · 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
35.3 °C
18 July 1941
Coldest day
-42.6 °C
26 January 1972
Wettest day
60 mm
13 July 2010
Windiest day
50.5 km/h
5 May 1982
Strongest gust
105.1 km/h
24 May 2017
Hottest feels-like
35.7 °C
10 July 2024
Coldest feels-like
-47.8 °C
26 January 1972
Snowiest day
36.3 cm
14 May 1986
Sunniest day
16.5 h
24 June 1945
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | -2.7 °C | +4.3 °C | 24 mm | +5 mm |
| Feb | -8.7 °C | -4.8 °C | 6 mm | -9 mm |
| Mar | 3.9 °C | +2.8 °C | 32 mm | +11 mm |
| Apr | 12.7 °C | +3.4 °C | 36 mm | +3 mm |
| May | 19.4 °C | +3.7 °C | 77 mm | +13 mm |
| Jun | 20.4 °C | +1.3 °C | 74 mm | -13 mm |
| Jul | 21.0 °C | -1.0 °C | 80 mm | -4 mm |
| Aug | 23.7 °C | +2.4 °C | 70 mm | +1 mm |
| Sep | 23.0 °C | +6.5 °C | 6 mm | -39 mm |
| Oct | 12.3 °C | +2.3 °C | 14 mm | -11 mm |
| Nov | 3.1 °C | +2.7 °C | 20 mm | +0 mm |
| Dec | -5.4 °C | -0.2 °C | 35 mm | +18 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 Red Deer?
Red Deer has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 3.0 °C and it receives 499 mm of precipitation per year.
What is the hottest day ever recorded in Red Deer?
The hottest day measured in Red Deer between 1940 and 2025 was 18 July 1941, reaching 35.3 °C.
What is the coldest day in Red Deer?
The coldest day measured in Red Deer between 1940 and 2025 was 26 January 1972, at -42.6 °C.
Does it snow in Red Deer?
Yes. Red Deer gets on average 87.5 cm of snow per year and has around 190 frost days.
Has the climate of Red Deer warmed?
Yes: Red Deer warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Red Deer?
The wettest day measured in Red Deer between 1940 and 2025 was 13 July 2010, with 60 mm of rain in 24 hours.
What was the windiest day in Red Deer?
The windiest day measured in Red Deer between 1940 and 2025 was 5 May 1982, with winds reaching 50.5 km/h.
What is the warmest month in Red Deer?
The warmest month in Red Deer is July (16.5 °C on average); the coldest is January (-11.6 °C).
How much does it rain in Red Deer?
Red Deer receives on average 499 mm of precipitation per year, spread over about 96 rainy days.
Is it sunny in Red Deer?
Red Deer gets on average 9.3 hours of sunshine per day, roughly 3,395 hours per year over 1940-2025.
What is the biggest single-day snowfall in Red Deer?
The heaviest 24-hour snowfall measured in Red Deer between 1940 and 2025 was 14 May 1986, with 36.3 cm.
Are there tropical nights in Red Deer?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Red Deer.
What was the most extreme apparent temperature in Red Deer?
In Red Deer, between 1940 and 2025, the highest apparent temperature reached 35.7 °C on 10 July 2024, and the lowest was -47.8 °C on 26 January 1972.
Compare Red Deer with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Red Deer