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Monthly climate in Deltana, Alaska, United States

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Deltana features a subarctic climate (Dsc). Temperatures typically range between -18 °C (0 °F) and 13 °C (56 °F) through the year, but rarely can drop to -39 °C (-38 °F) or can rise to as high as 27 °C (80 °F). The average annual precipitation amounts to about 686 mm (27.0 inches) and receives 136 rainy days on the 1 mm (0.04 inches) threshold annually. Deltana enjoys an average of 2469 hours of sunshine throughout the year, and daylight varies from 4 hours 27 minutes to 20 hours 37 minutes per day.

Monthly average temperatures in Deltana, Alaska, United States §

The warmest months in Deltana are June, July and August, with daily mean temperatures ranging from 10 to 13 °C (51 - 56 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -18 to -14 °C (0 - 7 °F) throughout the day. On average each year, Deltana experiences 0 days above 25 °C (77.0 °F) and 212 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Deltana, 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 1°C
(33°F)		 1°C
(34°F)		 9°C
(48°F)		 12°C
(55°F)		 19°C
(66°F)		 27°C
(80°F)		 26°C
(78°F)		 24°C
(76°F)		 18°C
(64°F)		 13°C
(56°F)		 1°C
(35°F)		 1°C
(34°F)
Mean maximum -2°C
(29°F)		 -3°C
(27°F)		 1°C
(35°F)		 10°C
(50°F)		 16°C
(61°F)		 22°C
(73°F)		 24°C
(75°F)		 22°C
(73°F)		 15°C
(60°F)		 9°C
(48°F)		 0°C
(33°F)		 -1°C
(30°F)
Average high -15°C
(6°F)		 -13°C
(9°F)		 -8°C
(19°F)		 2°C
(36°F)		 10°C
(50°F)		 15°C
(60°F)		 17°C
(64°F)		 14°C
(58°F)		 9°C
(49°F)		 -0°C
(32°F)		 -11°C
(13°F)		 -11°C
(12°F)
Daily mean -18°C
(-0°F)		 -17°C
(3°F)		 -12°C
(10°F)		 -3°C
(27°F)		 6°C
(42°F)		 11°C
(53°F)		 13°C
(56°F)		 10°C
(51°F)		 5°C
(41°F)		 -4°C
(26°F)		 -14°C
(7°F)		 -14°C
(7°F)
Average low -21°C
(-6°F)		 -20°C
(-4°F)		 -17°C
(2°F)		 -8°C
(19°F)		 1°C
(34°F)		 7°C
(44°F)		 9°C
(48°F)		 6°C
(44°F)		 1°C
(34°F)		 -7°C
(20°F)		 -17°C
(2°F)		 -17°C
(1°F)
Mean minimum -36°C
(-32°F)		 -34°C
(-29°F)		 -30°C
(-22°F)		 -20°C
(-4°F)		 -5°C
(23°F)		 1°C
(35°F)		 4°C
(40°F)		 1°C
(33°F)		 -7°C
(20°F)		 -20°C
(-4°F)		 -29°C
(-20°F)		 -31°C
(-23°F)
Minimum -39°C
(-38°F)		 -37°C
(-35°F)		 -36°C
(-32°F)		 -33°C
(-28°F)		 -7°C
(20°F)		 -2°C
(29°F)		 1°C
(35°F)		 -3°C
(28°F)		 -18°C
(-0°F)		 -27°C
(-16°F)		 -34°C
(-29°F)		 -37°C
(-34°F)

Compare climate in Deltana with other places

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

Monthly average precipitation in Deltana, Alaska, United States §

Deltana usually has the most precipitation in June, July and August, with an average of 16 rainy days and 105 mm (4.1 inches) of precipitation per month. The driest months in Deltana are January, February and March. On average, 24 mm (0.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Deltana, 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) 20 (0.8) 24 (0.9) 27 (1.1) 29 (1.1) 64 (2.5) 105 (4.1) 85 (3.4) 125 (4.9) 62 (2.4) 61 (2.4) 42 (1.7) 42 (1.6)
Average precipitation days (≥ 1 mm) 5 7 8 7 13 18 15 17 14 12 10 10

Monthly sunshine hours in Deltana, Alaska, United States §

The sunniest months in Deltana are May, June and July, when the sun shines an average of 11 hours 32 minutes a day. Least sunny months in Deltana: January, November and December receive an average of 1 hours 43 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Deltana, 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 45 130 231 307 344 367 350 257 195 127 77 34
Mean daily daylight hours 5h 38m 8h 38m 11h 52m 15h 10m 18h 26m 20h 37m 19h 19m 16h 8m 12h 52m 9h 38m 6h 28m 4h 27m

Solar UV radiation in Deltana, Alaska, United States §

Deltana experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 7 - 7, which corresponds to the 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 Deltana UV Index data.

Average daily maximum UV levels by month for Deltana, 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 7 7 7 6 4 2 1 1

Detailed Monthly Weather Insights for Deltana, Alaska, United States

Discover in-depth weather details for every month in Deltana. 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 Deltana'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.