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Monthly climate in Kenai, Alaska, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Kenai features a subarctic climate (Dfc).Temperatures typically range between -5 °C (24 °F) and 15 °C (59 °F) through the year, but rarely can drop to -20 °C (-4 °F) or can rise to as high as 27 °C (81 °F).The average annual precipitation amounts to about 885 mm (34.8 inches) and receives 146 rainy days on the 1 mm (0.04 inches) threshold annually.Kenai enjoys an average of 2316 hours of sunshine throughout the year, and daylight varies from 5 hours 51 minutes to 18 hours 51 minutes per day.

Monthly average temperatures in Kenai, Alaska, United States §

The warmest months in Kenai 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 -5 to -2 °C (24 - 29 °F) throughout the day. On average each year, Kenai experiences 0 days above 25 °C (77.0 °F) and 126 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Kenai, 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
(45°F)		 6°C
(43°F)		 10°C
(50°F)		 13°C
(55°F)		 20°C
(68°F)		 22°C
(73°F)		 27°C
(81°F)		 24°C
(75°F)		 19°C
(66°F)		 15°C
(59°F)		 9°C
(48°F)		 7°C
(45°F)
Mean maximum 6°C
(43°F)		 4°C
(40°F)		 5°C
(42°F)		 11°C
(53°F)		 17°C
(62°F)		 19°C
(66°F)		 23°C
(73°F)		 21°C
(70°F)		 17°C
(63°F)		 13°C
(55°F)		 7°C
(45°F)		 6°C
(44°F)
Average high -3°C
(27°F)		 -1°C
(31°F)		 1°C
(34°F)		 7°C
(44°F)		 11°C
(53°F)		 15°C
(59°F)		 17°C
(63°F)		 17°C
(63°F)		 14°C
(57°F)		 8°C
(47°F)		 1°C
(34°F)		 -0°C
(32°F)
Daily mean -5°C
(24°F)		 -3°C
(26°F)		 -2°C
(29°F)		 3°C
(39°F)		 9°C
(48°F)		 12°C
(54°F)		 15°C
(59°F)		 15°C
(58°F)		 11°C
(53°F)		 6°C
(44°F)		 -0°C
(31°F)		 -2°C
(29°F)
Average low -7°C
(20°F)		 -6°C
(22°F)		 -4°C
(24°F)		 1°C
(33°F)		 6°C
(43°F)		 10°C
(49°F)		 12°C
(54°F)		 12°C
(55°F)		 9°C
(49°F)		 5°C
(41°F)		 -2°C
(28°F)		 -4°C
(25°F)
Mean minimum -16°C
(4°F)		 -13°C
(9°F)		 -11°C
(13°F)		 -5°C
(23°F)		 3°C
(37°F)		 7°C
(44°F)		 10°C
(50°F)		 9°C
(49°F)		 5°C
(41°F)		 -2°C
(29°F)		 -9°C
(15°F)		 -11°C
(12°F)
Minimum -20°C
(-4°F)		 -16°C
(3°F)		 -15°C
(5°F)		 -11°C
(13°F)		 1°C
(34°F)		 6°C
(43°F)		 9°C
(48°F)		 8°C
(47°F)		 1°C
(35°F)		 -4°C
(24°F)		 -19°C
(-2°F)		 -16°C
(4°F)

Compare climate in Kenai with other places

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

Monthly average precipitation in Kenai, Alaska, United States §

Kenai usually has the most precipitation in September, October and December, with an average of 16 rainy days and 118 mm (4.7 inches) of precipitation per month.The driest months in Kenai are March, April and June. On average, 39 mm (1.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Kenai, 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) 50 (2.0) 54 (2.1) 37 (1.5) 37 (1.4) 65 (2.5) 43 (1.7) 67 (2.7) 82 (3.2) 118 (4.6) 132 (5.2) 94 (3.7) 106 (4.2)
Average precipitation days (≥ 1 mm) 9 11 9 9 14 9 10 12 16 17 13 17

Monthly sunshine hours in Kenai, Alaska, United States §

The sunniest months in Kenai are June, July and August, when the sun shines an average of 10 hours 8 minutes a day.Least sunny months in Kenai: January, November and December receive an average of 2 hours 3 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Kenai, 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 57 120 218 254 271 333 306 292 199 129 93 37
Mean daily daylight hours 6h 43m 9h 8m 11h 54m 14h 43m 17h 20m 18h 51m 17h 58m 15h 31m 12h 45m 9h 58m 7h 21m 5h 51m

Solar UV radiation in Kenai, Alaska, United States §

Kenai experiences the highest level of ultraviolet (UV) radiation in May, July and August, when the maximum UV index can reach values of 6 - 7, 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 Kenai UV Index data.

Average daily maximum UV levels by month for Kenai, 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 3 4 6 6 7 6 4 2 1 1