Aberdeen climate — normals and trends
Aberdeen (United States) has a hot-summer humid continental climate (Dfa) under the Köppen-Geiger classification. Its mean annual temperature is 6.7 °C and it receives 601 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 (22.8 °C on average) and the coldest is January (-11.1 °C). Rainfall peaks in June.
Aberdeen averages 161 frost days, 33 hot days (≥ 30 °C) and 84 rainy days per year.
Aberdeen has warmed by +1.4 °C between 1940 and 2025, or +0.16 °C per decade. This trend is statistically significant.
The hottest day of the period reached 41.5 °C (on 15 July 2006) and the coldest -38.2 °C (on 15 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
AberdeenSouth Dakota
- coords
- 45.46°, -98.49°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
6.7°C
Average daily high
12.3°C
Average daily low
1.4°C
Annual rainfall
601mm
Sunshine / day
9.4h
Mean relative humidity
69%
Average peak wind
22.0km/h
Seasonal range
33.9°C
Frost days (< 0 °C)
161 d/yr
Hot days (≥ 30 °C)
33 d/yr
Rainy days (≥ 1 mm)
84 d/yr
Annual snowfall
75.3 cm
Average feels-like high
9.4 °C
Average feels-like low
-2.3 °C
Average peak gust
39.2 km/h
Tropical nights (≥ 20 °C)
12 d/yr
Solar radiation
15.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.4 °C
since 1940
+0.2 °C per decade · r² = 0.13 · 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
41.5 °C
15 July 2006
Coldest day
-38.2 °C
15 January 1972
Wettest day
61 mm
2 July 1981
Windiest day
81.1 km/h
4 March 1966
Strongest gust
111.2 km/h
4 March 1966
Hottest feels-like
44.6 °C
30 July 1955
Coldest feels-like
-43.9 °C
15 January 1972
Snowiest day
26.9 cm
14 April 1986
Sunniest day
15.0 h
21 May 1940
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 | -3.9 °C | +2.2 °C | 5 mm | -12 mm |
| Feb | -4.6 °C | -1.2 °C | 13 mm | -6 mm |
| Mar | 9.4 °C | +6.0 °C | 11 mm | -27 mm |
| Apr | 14.1 °C | +1.3 °C | 74 mm | +10 mm |
| May | 21.6 °C | +1.5 °C | 100 mm | +14 mm |
| Jun | 25.5 °C | +0.1 °C | 92 mm | 0 mm |
| Jul | 28.4 °C | -0.4 °C | 82 mm | +11 mm |
| Aug | 27.1 °C | -0.7 °C | 58 mm | -12 mm |
| Sep | 25.5 °C | +2.9 °C | 66 mm | +11 mm |
| Oct | 17.8 °C | +2.7 °C | 36 mm | -9 mm |
| Nov | 7.3 °C | +2.6 °C | 26 mm | +1 mm |
| Dec | -1.1 °C | +2.0 °C | 23 mm | +3 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 Aberdeen?
Aberdeen has a hot-summer humid continental climate (Köppen Dfa). Over 1940-2025, the average annual temperature is 6.7 °C and it receives 601 mm of precipitation per year.
What is the hottest day ever recorded in Aberdeen?
The hottest day measured in Aberdeen between 1940 and 2025 was 15 July 2006, reaching 41.5 °C.
What is the coldest day in Aberdeen?
The coldest day measured in Aberdeen between 1940 and 2025 was 15 January 1972, at -38.2 °C.
Does it snow in Aberdeen?
Yes. Aberdeen gets on average 75.3 cm of snow per year and has around 161 frost days.
Has the climate of Aberdeen warmed?
Yes: Aberdeen warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Aberdeen?
The wettest day measured in Aberdeen between 1940 and 2025 was 2 July 1981, with 61 mm of rain in 24 hours.
What was the windiest day in Aberdeen?
The windiest day measured in Aberdeen between 1940 and 2025 was 4 March 1966, with winds reaching 81.1 km/h.
What is the warmest month in Aberdeen?
The warmest month in Aberdeen is July (22.8 °C on average); the coldest is January (-11.1 °C).
How much does it rain in Aberdeen?
Aberdeen receives on average 601 mm of precipitation per year, spread over about 84 rainy days.
Is it sunny in Aberdeen?
Aberdeen gets on average 9.4 hours of sunshine per day, roughly 3,431 hours per year over 1940-2025.
What is the biggest single-day snowfall in Aberdeen?
The heaviest 24-hour snowfall measured in Aberdeen between 1940 and 2025 was 14 April 1986, with 26.9 cm.
Are there tropical nights in Aberdeen?
Yes: Aberdeen has on average 12 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Aberdeen?
In Aberdeen, between 1940 and 2025, the highest apparent temperature reached 44.6 °C on 30 July 1955, and the lowest was -43.9 °C on 15 January 1972.
Compare Aberdeen with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Aberdeen