Kwethluk, AK

Climate overview — based on NOAA 1991-2020 normals from BETHEL AP, AK US.

Dfc Subarctic climate 5b USDA hardiness Zone 5b

Year-round temperatures (°F)

20° 40° 60° J F M A M J J A S O N D
Avg high Avg low

Climate summary

Kwethluk has an annual average temperature of 31.4°F with about 19.7 inches of precipitation per year and 64 inches of snow. The warmest month is July (average high 63.6°F), and the coldest is January (average low 1.2°F). August is typically the wettest month (3.36 in) and March the driest (0.74 in). Snow typically falls from September through May.

Annual swing
49.4°F
warmest to coldest month
Heating need
12,090
Cooling need
0

Best time to visit Kwethluk

Full guide →

Climate change signal

All-time records →

49 of 366 (13.4%) of Kwethluk's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.

1920s
52
1930s
74
1940s
37
1950s
25
1960s
29
1970s
11
1980s
18
1990s
19
2000s
37
2010s
54
2020s
10

Bars: number of all-time daily heat records still standing that were set in each decade.

Monthly averages

Month Avg High Avg Low Avg Temp Precipitation Snow Rainy days
January 12.7°F 1.2°F 6.9°F 0.77 in 9.4 in 9
February 20.1°F 6.5°F 13.3°F 0.88 in 8.1 in 10
March 22.0°F 7.0°F 14.5°F 0.74 in 8.8 in 9
April 36.9°F 21.2°F 29.0°F 0.79 in 6.0 in 10
May 52.0°F 34.1°F 43.0°F 1.21 in 1.9 in 12
June 62.1°F 44.5°F 53.3°F 1.77 in 13
July 63.6°F 49.0°F 56.3°F 2.57 in 16
August 60.5°F 47.3°F 53.9°F 3.36 in 18
September 52.7°F 39.4°F 46.1°F 2.89 in 0.5 in 17
October 37.9°F 26.4°F 32.2°F 1.84 in 3.9 in 13
November 24.3°F 12.8°F 18.5°F 1.80 in 13.2 in 14
December 16.3°F 3.7°F 10.0°F 1.06 in 12.2 in 11

Climate twins of Kwethluk

Why these? →

The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).

Frost dates
Last spring / first fall frost
All-time records
Hottest, coldest, wettest
Planting calendar
What to plant, and when

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