Last updated: May 6, 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.
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).
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 temperature, precipitation, sunshine, UV index in Deltana, Alaska, United States with other places around the world.
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.
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 |
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.
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 |
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.
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 |