Seward, AK

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

Dfc Subarctic climate 7b USDA hardiness Zone 7b

Year-round temperatures (°F)

20° 30° 40° 50° 60° 70° J F M A M J J A S O N D
Avg high Avg low

Climate summary

Seward has an annual average temperature of 40.4°F with about 69.7 inches of precipitation per year. The warmest month is July (average high 62.2°F), and the coldest is January (average low 21.1°F). September is typically the wettest month (9.90 in) and June the driest (2.34 in).

Annual swing
30°F
warmest to coldest month
Heating need
8,850
Cooling need
0

Best time to visit Seward

Full guide →

Climate change signal

All-time records →

43 of 366 (11.7%) of Seward'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.

1900s
2
1910s
77
1920s
12
1930s
45
1940s
40
1950s
21
1960s
23
1970s
10
1980s
18
1990s
24
2000s
31
2010s
48
2020s
15

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 31.3°F 21.1°F 26.2°F 6.47 in 14
February 34.3°F 23.5°F 28.9°F 6.35 in 14
March 37.3°F 24.9°F 31.1°F 3.85 in 12
April 45.4°F 32.2°F 38.8°F 4.29 in 14
May 53.4°F 39.2°F 46.3°F 3.50 in 14
June 59.0°F 45.7°F 52.3°F 2.34 in 11
July 62.2°F 50.2°F 56.2°F 3.11 in 13
August 62.0°F 49.6°F 55.8°F 5.39 in 15
September 55.7°F 43.4°F 49.6°F 9.90 in 17
October 45.7°F 34.7°F 40.2°F 8.69 in 17
November 36.1°F 26.6°F 31.4°F 7.60 in 14
December 33.2°F 23.2°F 28.2°F 8.22 in 16

Climate twins of Seward

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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