Aberdeen climate — normals and trends
Aberdeen (United States) has a warm-summer mediterranean climate (Csb) under the Köppen-Geiger classification. Its mean annual temperature is 10.3 °C and it receives 1,729 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 August (16.2 °C on average) and the coldest is January (4.9 °C). Rainfall peaks in December.
Aberdeen averages 21 frost days, 4 hot days (≥ 30 °C) and 156 rainy days per year.
Aberdeen has warmed by +1.3 °C between 1940 and 2025, or +0.15 °C per decade. This trend is statistically significant.
The number of frost days there went from about 28 to 14 per year over the period.
The hottest day of the period reached 40.1 °C (on 27 June 2021) and the coldest -17.2 °C (on 8 December 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
AberdeenWashington
- coords
- 46.98°, -123.82°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.3°C
Average daily high
14.3°C
Average daily low
6.9°C
Annual rainfall
1,729mm
Sunshine / day
8.3h
Mean relative humidity
81%
Average peak wind
15.2km/h
Seasonal range
11.3°C
Frost days (< 0 °C)
21 d/yr
Hot days (≥ 30 °C)
4 d/yr
Rainy days (≥ 1 mm)
156 d/yr
Annual snowfall
28.4 cm
Average feels-like high
12.6 °C
Average feels-like low
4.6 °C
Average peak gust
36.4 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
12.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.3 °C
since 1940
+0.2 °C per decade · r² = 0.33 · 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
40.1 °C
27 June 2021
Coldest day
-17.2 °C
8 December 1972
Wettest day
97 mm
2 November 1955
Windiest day
52.6 km/h
12 October 1962
Strongest gust
128.2 km/h
3 December 2007
Hottest feels-like
44.2 °C
28 June 2021
Coldest feels-like
-22.0 °C
8 December 1972
Snowiest day
16.7 cm
12 March 2012
Sunniest day
15.4 h
16 June 2004
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 | 8.1 °C | +0.7 °C | 91 mm | -160 mm |
| Feb | 7.9 °C | -1.2 °C | 202 mm | +8 mm |
| Mar | 11.2 °C | +0.4 °C | 239 mm | +47 mm |
| Apr | 15.2 °C | +2.0 °C | 73 mm | -57 mm |
| May | 16.7 °C | +0.3 °C | 54 mm | -26 mm |
| Jun | 19.0 °C | +0.3 °C | 15 mm | -36 mm |
| Jul | 21.3 °C | -0.1 °C | 1 mm | -21 mm |
| Aug | 22.7 °C | +1.0 °C | 46 mm | +13 mm |
| Sep | 20.2 °C | +0.3 °C | 73 mm | +3 mm |
| Oct | 15.0 °C | +0.1 °C | 167 mm | -6 mm |
| Nov | 11.6 °C | +1.5 °C | 203 mm | -63 mm |
| Dec | 9.9 °C | +2.4 °C | 338 mm | +71 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 warm-summer mediterranean climate (Köppen Csb). Over 1940-2025, the average annual temperature is 10.3 °C and it receives 1,729 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 27 June 2021, reaching 40.1 °C.
What is the coldest day in Aberdeen?
The coldest day measured in Aberdeen between 1940 and 2025 was 8 December 1972, at -17.2 °C.
Does it snow in Aberdeen?
Yes. Aberdeen gets on average 28.4 cm of snow per year and has around 21 frost days.
Has the climate of Aberdeen warmed?
Yes: Aberdeen warmed by +1.3 °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 November 1955, with 97 mm of rain in 24 hours.
What was the windiest day in Aberdeen?
The windiest day measured in Aberdeen between 1940 and 2025 was 12 October 1962, with winds reaching 52.6 km/h.
What is the warmest month in Aberdeen?
The warmest month in Aberdeen is August (16.2 °C on average); the coldest is January (4.9 °C).
How much does it rain in Aberdeen?
Aberdeen receives on average 1,729 mm of precipitation per year, spread over about 156 rainy days.
Is it sunny in Aberdeen?
Aberdeen gets on average 8.3 hours of sunshine per day, roughly 3,030 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 12 March 2012, with 16.7 cm.
Are there tropical nights in Aberdeen?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Aberdeen.
What was the most extreme apparent temperature in Aberdeen?
In Aberdeen, between 1940 and 2025, the highest apparent temperature reached 44.2 °C on 28 June 2021, and the lowest was -22.0 °C on 8 December 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