Seward, AK climate
Seward has chilly, snowy winters and cool summers, with plenty of rain. A typical July afternoon reaches 62°, a January night drops to 21°, and about 90 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Seward feels like
Winter
Spring
Summer
Fall
Seward weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground |
|---|---|---|---|---|---|---|
| January | 31° | 21° | 6.5" | 17.2" | 13 | 31 |
| February | 34° | 24° | 6.4" | 15.7" | 13 | 28 |
| March | 37° | 25° | 3.9" | 12.3" | 11 | 31 |
| April | 45° | 32° | 4.3" | 3.9" | 12 | 29 |
| May | 53° | 39° | 3.5" | 0.3" | 14 | 12 |
| June | 59° | 46° | 2.3" | 0 | 14 | 0 |
| July | 62° | 50° | 3.1" | 0 | 17 | 0 |
| August | 62° | 50° | 5.4" | 0 | 17 | 0 |
| September | 56° | 43° | 9.9" | 0 | 20 | 0 |
| October | 46° | 35° | 8.7" | 1.7" | 18 | 3 |
| November | 36° | 27° | 7.6" | 11.8" | 14 | 21 |
| December | 33° | 23° | 8.2" | 27.2" | 15 | 29 |
| Year | 46° | 35° | 69.7" | 90.1" | 178 | 184 |
“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more.
Rain and snow in Seward
Seward gets 70 inches of rain and melted snow a year. September is the wettest month and June the driest. Rain or snow falls on about 178 days a year. Snow covers the ground about 184 days of the year.
About 158 frost-free days a year
In half of years the last 32° night comes by May 2 and the first one by October 7. That leaves about 158 frost-free days for gardens, shorter than 73% of U.S. towns.
Heating and cooling a home in Seward
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Seward, 100% of that work is heating and 0% is cooling, so the furnace matters far more than the air conditioner.
Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.
How Seward compares
Compared with every U.S. town and city on TownTapestry, each counted once.
Common questions about Seward’s climate
What is the coldest month in Seward?
January, with a typical high of 31° and a low of 21°.
What is the hottest month in Seward?
July, with a typical high of 62° and a low of 50°.
How much snow does Seward get?
About 90 inches in a normal winter, most of it in December.
When is the first frost in Seward?
In half of years the first 32° night comes by October 7, and the last spring frost by May 2.
What is the rainiest month in Seward?
September, with 9.9 inches of rain and melted snow. The year totals 70 inches.
NOAA’s gridded normals don’t cover this state, so temperatures and rainfall come from the nearest weather station. Snow, frost dates and day counts come from NOAA’s weather station at Seward 19n, AK (16 mi, snow) and Seward Airport, AK (1 mi, frost, heat and degree days). Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020.