Anacortes climate — normals and trends
Anacortes has a warm-summer mediterranean climate, averaging 9.9 °C annually with 1,392 mm of rain per year.
Climate normals · ERA5
AnacortesWashington
- coords
- 48.51°, -122.61°
- period
- 1940–2025 · 86 yrs
The normals for this period
The average of every indicator across the whole window: temperature, water, sky, wind and notable days.
Mean daily temperature
9.9°C
Average daily high
12.5°C
Average daily low
7.7°C
Annual rainfall
1,392mm
Sunshine / day
8.8h
Mean relative humidity
82%
Average peak wind
15.6km/h
Seasonal range
12.7°C
Frost days (< 0 °C)
18 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
157 d/yr
Annual snowfall
43.1 cm
Average feels-like high
10.8 °C
Average feels-like low
5.3 °C
Average peak gust
30.6 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
12.8 MJ/m²
Has the climate changed?
What the yearly averages say about warming here, and whether the slope is statistically solid.
+1.4 °C
since 1940
+0.2 °C per decade · r² = 0.40 · 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).
Climate month by month
How an average year unfolds: when it rains, when it turns hot, when the sun is out.
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
The most extreme days ever measured here, then the year-by-year detail.
Hottest day
31.1 °C
28 June 2021
Coldest day
-19.0 °C
29 December 1990
Wettest day
75 mm
20 October 2003
Windiest day
53.1 km/h
12 October 1962
Strongest gust
106.2 km/h
13 October 1962
Hottest feels-like
36.0 °C
28 June 2021
Coldest feels-like
-24.9 °C
29 December 1990
Snowiest day
21.8 cm
21 January 1954
Sunniest day
15.8 h
10 June 1940
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and compare it with the normal: warmer, drier, more extreme?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 6.5 °C | +0.5 °C | 75 mm | -109 mm |
| Feb | 6.3 °C | -1.2 °C | 120 mm | -26 mm |
| Mar | 9.8 °C | +0.7 °C | 177 mm | +32 mm |
| Apr | 12.7 °C | +1.3 °C | 86 mm | -20 mm |
| May | 14.6 °C | +0.3 °C | 57 mm | -18 mm |
| Jun | 17.2 °C | +0.5 °C | 22 mm | -32 mm |
| Jul | 20.0 °C | +0.7 °C | 7 mm | -22 mm |
| Aug | 20.5 °C | +1.0 °C | 62 mm | +23 mm |
| Sep | 18.6 °C | +1.2 °C | 28 mm | -46 mm |
| Oct | 13.2 °C | 0.0 °C | 157 mm | +8 mm |
| Nov | 10.6 °C | +1.7 °C | 151 mm | -48 mm |
| Dec | 8.4 °C | +2.1 °C | 290 mm | +100 mm |
The year's extremes
What was the weather like that day?
The weather actually measured on a given date, anywhere in the covered window.
Climate at a glance
What these normals say about the place, in a few sentences, and the notions needed to read them.
Anacortes (United States) has a warm-summer mediterranean climate (Csb) under the Köppen-Geiger classification. Its mean annual temperature is 9.9 °C and it receives 1,392 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 (16.6 °C on average) and the coldest is January (3.9 °C). Rainfall peaks in November.
Anacortes averages 18 frost days, 0 hot days (≥ 30 °C) and 157 rainy days per year.
Anacortes has warmed by +1.4 °C between 1940 and 2025, or +0.17 °C per decade. This trend is statistically significant.
The number of frost days there went from about 27 to 9 per year over the period.
The hottest day of the period reached 31.1 °C (on 28 June 2021) and the coldest -19.0 °C (on 29 December 1990).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Compare Anacortes with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Anacortes
Other cities — United States
Frequently asked questions
What is the climate of Anacortes?
Anacortes has a warm-summer mediterranean climate (Köppen Csb). Over 1940-2025, the average annual temperature is 9.9 °C and it receives 1,392 mm of precipitation per year.
What is the hottest day ever recorded in Anacortes?
The hottest day measured in Anacortes between 1940 and 2025 was 28 June 2021, reaching 31.1 °C.
What is the coldest day in Anacortes?
The coldest day measured in Anacortes between 1940 and 2025 was 29 December 1990, at -19.0 °C.
Does it snow in Anacortes?
Yes. Anacortes gets on average 43.1 cm of snow per year and has around 18 frost days.
Has the climate of Anacortes warmed?
Yes: Anacortes warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Anacortes?
The wettest day measured in Anacortes between 1940 and 2025 was 20 October 2003, with 75 mm of rain in 24 hours.
What was the windiest day in Anacortes?
The windiest day measured in Anacortes between 1940 and 2025 was 12 October 1962, with winds reaching 53.1 km/h.
What is the warmest month in Anacortes?
The warmest month in Anacortes is August (16.6 °C on average); the coldest is January (3.9 °C).
How much does it rain in Anacortes?
Anacortes receives on average 1,392 mm of precipitation per year, spread over about 157 rainy days.
Is it sunny in Anacortes?
Anacortes gets on average 8.8 hours of sunshine per day, roughly 3,212 hours per year over 1940-2025.
What is the biggest single-day snowfall in Anacortes?
The heaviest 24-hour snowfall measured in Anacortes between 1940 and 2025 was 21 January 1954, with 21.8 cm.
Are there tropical nights in Anacortes?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Anacortes.
What was the most extreme apparent temperature in Anacortes?
In Anacortes, between 1940 and 2025, the highest apparent temperature reached 36.0 °C on 28 June 2021, and the lowest was -24.9 °C on 29 December 1990.
These forecasts and records come from our own weather API. Developer documentation →