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Monthly climate in Anacortes, Washington, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Anacortes features a warm-summer Mediterranean climate (Csb).Temperatures typically range between 4 °C (40 °F) and 18 °C (64 °F) through the year, but rarely can drop to -12 °C (11 °F) or can rise to as high as 31 °C (88 °F).The average annual precipitation amounts to about 1440 mm (56.7 inches) and receives 155 rainy days on the 1 mm (0.04 inches) threshold annually.Anacortes enjoys an average of 2778 hours of sunshine throughout the year, and daylight varies from 8 hours 21 minutes to 16 hours 2 minutes per day.

Monthly average temperatures in Anacortes, Washington, United States §

The warmest months in Anacortes are July, August and September, with daily mean temperatures ranging from 15 to 18 °C (60 - 64 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 4 to 5 °C (40 - 42 °F) throughout the day. On average each year, Anacortes experiences 2 days above 25 °C (77.0 °F) and 14 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Anacortes, Washington, United States.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 13°C
(56°F)		 13°C
(56°F)		 19°C
(67°F)		 18°C
(65°F)		 23°C
(73°F)		 31°C
(88°F)		 26°C
(78°F)		 30°C
(86°F)		 26°C
(78°F)		 20°C
(68°F)		 16°C
(62°F)		 13°C
(55°F)
Mean maximum 12°C
(53°F)		 11°C
(53°F)		 14°C
(57°F)		 16°C
(62°F)		 20°C
(68°F)		 23°C
(73°F)		 24°C
(76°F)		 26°C
(79°F)		 23°C
(74°F)		 17°C
(63°F)		 14°C
(58°F)		 11°C
(52°F)
Average high 7°C
(45°F)		 6°C
(44°F)		 9°C
(49°F)		 12°C
(53°F)		 15°C
(59°F)		 17°C
(64°F)		 20°C
(68°F)		 21°C
(69°F)		 18°C
(64°F)		 13°C
(55°F)		 10°C
(50°F)		 7°C
(45°F)
Daily mean 5°C
(42°F)		 4°C
(40°F)		 7°C
(44°F)		 9°C
(49°F)		 12°C
(55°F)		 15°C
(59°F)		 17°C
(63°F)		 18°C
(64°F)		 15°C
(60°F)		 11°C
(51°F)		 8°C
(46°F)		 5°C
(41°F)
Average low 3°C
(38°F)		 2°C
(36°F)		 4°C
(40°F)		 7°C
(44°F)		 10°C
(50°F)		 12°C
(55°F)		 14°C
(58°F)		 15°C
(59°F)		 13°C
(56°F)		 9°C
(48°F)		 6°C
(43°F)		 3°C
(38°F)
Mean minimum -3°C
(27°F)		 -3°C
(26°F)		 0°C
(32°F)		 3°C
(38°F)		 7°C
(44°F)		 9°C
(49°F)		 12°C
(54°F)		 12°C
(54°F)		 9°C
(49°F)		 4°C
(39°F)		 2°C
(35°F)		 -3°C
(27°F)
Minimum -7°C
(19°F)		 -10°C
(13°F)		 -2°C
(30°F)		 2°C
(36°F)		 5°C
(41°F)		 8°C
(46°F)		 11°C
(53°F)		 11°C
(52°F)		 8°C
(47°F)		 2°C
(37°F)		 0°C
(33°F)		 -12°C
(11°F)

Compare climate in Anacortes with other places

Compare temperature, precipitation, sunshine, UV index in Anacortes, Washington, United States with other places around the world.

Monthly average precipitation in Anacortes, Washington, United States §

Anacortes usually has the most precipitation in February, November and December, with an average of 18 rainy days and 200 mm (7.9 inches) of precipitation per month.The driest months in Anacortes are June, July and August. On average, 30 mm (1.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Anacortes, Washington, United States.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 171 (6.7) 175 (6.9) 137 (5.4) 102 (4.0) 61 (2.4) 52 (2.0) 21 (0.8) 18 (0.7) 112 (4.4) 166 (6.5) 226 (8.9) 199 (7.8)
Average precipitation days (≥ 1 mm) 15 19 16 15 10 9 3 3 11 17 19 18

Monthly sunshine hours in Anacortes, Washington, United States §

The sunniest months in Anacortes are June, July and August, when the sun shines an average of 11 hours 42 minutes a day.Least sunny months in Anacortes: January, November and December receive an average of 3 hours 23 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Anacortes, Washington, United States.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 87 142 210 246 333 340 387 348 263 192 127 97
Mean daily daylight hours 8h 48m 10h 12m 11h 57m 13h 44m 15h 15m 16h 2m 15h 36m 14h 13m 12h 30m 10h 44m 9h 10m 8h 21m

Solar UV radiation in Anacortes, Washington, United States §

Anacortes experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 8 - 9, which corresponds to the Very High category of sun exposure.January, November and December are in the Low exposure category. In these months, the maximum values of the UV index do not exceed 2. For more detailed information, check out our hourly Anacortes UV Index data.

Average daily maximum UV levels by month for Anacortes, Washington, United States.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 2 3 5 6 8 9 9 8 7 5 2 2