nomadseason

Monthly climate in Anchorage, Alaska, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Anchorage features a subarctic climate (Dfc).Temperatures typically range between -7 °C (19 °F) and 16 °C (61 °F) through the year, but rarely can drop to -25 °C (-12 °F) or can rise to as high as 27 °C (81 °F).The average annual precipitation amounts to about 893 mm (35.2 inches) and receives 149 rainy days on the 1 mm (0.04 inches) threshold annually.Anchorage enjoys an average of 2274 hours of sunshine throughout the year, and daylight varies from 5 hours 32 minutes to 19 hours 14 minutes per day.

Monthly average temperatures in Anchorage, Alaska, United States §

The warmest months in Anchorage are June, July and August, with daily mean temperatures ranging from 13 to 16 °C (56 - 61 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -7 to -4 °C (19 - 25 °F) throughout the day. On average each year, Anchorage experiences 0 days above 25 °C (77.0 °F) and 145 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Anchorage, Alaska, 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 7°C
(44°F)		 5°C
(42°F)		 8°C
(46°F)		 13°C
(56°F)		 19°C
(67°F)		 25°C
(78°F)		 27°C
(81°F)		 23°C
(74°F)		 18°C
(65°F)		 14°C
(57°F)		 7°C
(44°F)		 7°C
(44°F)
Mean maximum 5°C
(41°F)		 3°C
(38°F)		 5°C
(41°F)		 11°C
(52°F)		 16°C
(62°F)		 20°C
(68°F)		 23°C
(74°F)		 22°C
(72°F)		 17°C
(63°F)		 12°C
(53°F)		 5°C
(41°F)		 5°C
(42°F)
Average high -5°C
(22°F)		 -3°C
(27°F)		 0°C
(33°F)		 6°C
(44°F)		 11°C
(53°F)		 16°C
(61°F)		 18°C
(65°F)		 17°C
(63°F)		 13°C
(56°F)		 7°C
(45°F)		 -1°C
(30°F)		 -2°C
(28°F)
Daily mean -7°C
(19°F)		 -5°C
(23°F)		 -3°C
(27°F)		 3°C
(37°F)		 8°C
(48°F)		 13°C
(56°F)		 16°C
(61°F)		 15°C
(59°F)		 11°C
(52°F)		 5°C
(41°F)		 -3°C
(27°F)		 -4°C
(25°F)
Average low -9°C
(15°F)		 -7°C
(19°F)		 -6°C
(22°F)		 -0°C
(32°F)		 6°C
(42°F)		 11°C
(51°F)		 13°C
(57°F)		 13°C
(55°F)		 9°C
(48°F)		 3°C
(38°F)		 -5°C
(24°F)		 -6°C
(21°F)
Mean minimum -20°C
(-5°F)		 -16°C
(4°F)		 -13°C
(8°F)		 -6°C
(21°F)		 1°C
(35°F)		 8°C
(47°F)		 11°C
(52°F)		 9°C
(48°F)		 4°C
(39°F)		 -4°C
(25°F)		 -12°C
(11°F)		 -16°C
(3°F)
Minimum -25°C
(-12°F)		 -18°C
(-0°F)		 -17°C
(2°F)		 -14°C
(7°F)		 -1°C
(31°F)		 6°C
(43°F)		 10°C
(50°F)		 7°C
(44°F)		 -1°C
(31°F)		 -7°C
(20°F)		 -20°C
(-4°F)		 -21°C
(-6°F)

Compare climate in Anchorage with other places

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

Monthly average precipitation in Anchorage, Alaska, United States §

Anchorage usually has the most precipitation in August, September and October, with an average of 16 rainy days and 117 mm (4.6 inches) of precipitation per month.The driest months in Anchorage are March, April and June. On average, 42 mm (1.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Anchorage, Alaska, 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) 52 (2.1) 52 (2.0) 44 (1.7) 35 (1.4) 52 (2.1) 48 (1.9) 73 (2.9) 112 (4.4) 109 (4.3) 129 (5.1) 87 (3.4) 99 (3.9)
Average precipitation days (≥ 1 mm) 10 10 9 8 11 12 12 15 17 17 12 16

Monthly sunshine hours in Anchorage, Alaska, United States §

The sunniest months in Anchorage are May, June and July, when the sun shines an average of 9 hours 51 minutes a day.Least sunny months in Anchorage: January, November and December receive an average of 2 hours 2 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Anchorage, Alaska, 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 55 122 206 264 287 318 300 267 191 126 94 38
Mean daily daylight hours 6h 28m 9h 1m 11h 53m 14h 49m 17h 36m 19h 14m 18h 17m 15h 40m 12h 47m 9h 53m 7h 8m 5h 32m

Solar UV radiation in Anchorage, Alaska, United States §

Anchorage experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 5 - 7, which corresponds to the Moderate / High category of sun exposure.January, February and November are in the Low exposure category. In these months, the maximum values of the UV index do not exceed 1. For more detailed information, check out our hourly Anchorage UV Index data.

Average daily maximum UV levels by month for Anchorage, Alaska, 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) 1 1 3 4 5 6 7 5 4 2 1 1