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Monthly climate in Dillingham, Alaska, United States

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Dillingham features a subarctic climate (Dfc). Temperatures typically range between -10 °C (15 °F) and 15 °C (59 °F) through the year, but rarely can drop to -34 °C (-29 °F) or can rise to as high as 29 °C (85 °F). The average annual precipitation amounts to about 972 mm (38.3 inches) and receives 165 rainy days on the 1 mm (0.04 inches) threshold annually. Dillingham enjoys an average of 2136 hours of sunshine throughout the year, and daylight varies from 6 hours 16 minutes to 18 hours 22 minutes per day.

Monthly average temperatures in Dillingham, Alaska, United States §

The warmest months in Dillingham are June, July and August, with daily mean temperatures ranging from 12 to 15 °C (54 - 59 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -10 to -6 °C (15 - 21 °F) throughout the day. On average each year, Dillingham experiences 1 days above 25 °C (77.0 °F) and 152 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Dillingham, 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 5°C
(41°F)		 6°C
(42°F)		 10°C
(50°F)		 14°C
(57°F)		 22°C
(71°F)		 22°C
(72°F)		 29°C
(85°F)		 24°C
(76°F)		 20°C
(69°F)		 18°C
(65°F)		 10°C
(50°F)		 6°C
(43°F)
Mean maximum 4°C
(39°F)		 4°C
(40°F)		 4°C
(40°F)		 12°C
(54°F)		 19°C
(66°F)		 21°C
(70°F)		 25°C
(78°F)		 22°C
(72°F)		 17°C
(64°F)		 13°C
(56°F)		 6°C
(43°F)		 5°C
(41°F)
Average high -7°C
(20°F)		 -3°C
(27°F)		 -1°C
(30°F)		 6°C
(42°F)		 12°C
(53°F)		 16°C
(61°F)		 18°C
(65°F)		 17°C
(62°F)		 13°C
(56°F)		 7°C
(45°F)		 -1°C
(31°F)		 -4°C
(26°F)
Daily mean -10°C
(15°F)		 -6°C
(21°F)		 -5°C
(23°F)		 2°C
(36°F)		 8°C
(46°F)		 12°C
(54°F)		 15°C
(59°F)		 14°C
(57°F)		 10°C
(50°F)		 4°C
(40°F)		 -4°C
(25°F)		 -6°C
(21°F)
Average low -13°C
(9°F)		 -9°C
(16°F)		 -8°C
(17°F)		 -1°C
(30°F)		 4°C
(39°F)		 9°C
(48°F)		 11°C
(53°F)		 11°C
(51°F)		 7°C
(45°F)		 2°C
(36°F)		 -7°C
(20°F)		 -9°C
(16°F)
Mean minimum -28°C
(-18°F)		 -24°C
(-11°F)		 -19°C
(-2°F)		 -11°C
(12°F)		 -2°C
(29°F)		 5°C
(41°F)		 8°C
(47°F)		 6°C
(43°F)		 1°C
(34°F)		 -7°C
(20°F)		 -18°C
(-0°F)		 -24°C
(-12°F)
Minimum -34°C
(-29°F)		 -34°C
(-28°F)		 -25°C
(-12°F)		 -18°C
(0°F)		 -4°C
(26°F)		 2°C
(35°F)		 7°C
(45°F)		 3°C
(37°F)		 -3°C
(26°F)		 -9°C
(16°F)		 -30°C
(-22°F)		 -31°C
(-23°F)

Compare climate in Dillingham with other places

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

Monthly average precipitation in Dillingham, Alaska, United States §

Dillingham usually has the most precipitation in September, October and December, with an average of 16 rainy days and 113 mm (4.4 inches) of precipitation per month. The driest months in Dillingham are January, April and July. On average, 55 mm (2.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Dillingham, 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) 75 (3.0) 65 (2.6) 57 (2.2) 95 (3.8) 71 (2.8) 54 (2.1) 81 (3.2) 104 (4.1) 129 (5.1) 82 (3.2) 105 (4.1)
Average precipitation days (≥ 1 mm) 10 14 13 13 19 14 11 12 15 17 11 16

Monthly sunshine hours in Dillingham, Alaska, United States §

The sunniest months in Dillingham are May, June and July, when the sun shines an average of 9 hours 5 minutes a day. Least sunny months in Dillingham: January, February and December receive an average of 2 hours 24 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Dillingham, 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 60 101 193 228 282 300 253 227 191 134 104 56
Mean daily daylight hours 7h 4m 9h 18m 11h 54m 14h 34m 17h 0m 18h 22m 17h 34m 15h 19m 12h 43m 10h 5m 7h 39m 6h 16m

Solar UV radiation in Dillingham, Alaska, United States §

Dillingham experiences the highest level of ultraviolet (UV) radiation in May, July and August, when the maximum UV index can reach values of 6 - 6, which corresponds to the 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 1. For more detailed information, check out our hourly Dillingham UV Index data.

Average daily maximum UV levels by month for Dillingham, 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 2 4 5 6 6 6 6 4 2 1 1

Detailed Monthly Weather Insights for Dillingham, Alaska, United States

Discover in-depth weather details for every month in Dillingham. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Dillingham's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.

Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.