St. Paul, AK climate
St. Paul has chilly, snowy winters and cool summers. A typical July afternoon reaches 52°, a January night drops to 21°, and about 64 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in St. Paul feels like
Winter
Spring
Summer
Fall
St. Paul 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 | 29° | 21° | 1.6" | 16.5" | 17 | 20 |
| February | 29° | 21° | 1.4" | 11.1" | 16 | 22 |
| March | 30° | 21° | 1.3" | 9.6" | 14 | 23 |
| April | 34° | 26° | 1.0" | 5.3" | 12 | 16 |
| May | 41° | 32° | 1.0" | 0.8" | 12 | 4 |
| June | 48° | 39° | 1.3" | 0 | 11 | 0 |
| July | 52° | 44° | 2.0" | 0 | 14 | 0 |
| August | 53° | 46° | 3.1" | 0 | 18 | 0 |
| September | 50° | 42° | 3.0" | 0 | 20 | 0 |
| October | 44° | 35° | 3.3" | 1.6" | 23 | 1 |
| November | 38° | 30° | 3.0" | 7.1" | 23 | 8 |
| December | 33° | 25° | 2.3" | 12.3" | 22 | 15 |
| Year | 40° | 32° | 24.3" | 64.3" | 202 | 109 |
“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 St. Paul
St. Paul gets 24 inches of rain and melted snow a year. October is the wettest month and May the driest. Rain or snow falls on about 202 days a year. Snow covers the ground about 109 days of the year.
About 114 frost-free days a year
In half of years the last 32° night comes by June 4 and the first one by September 28. That leaves about 114 frost-free days for gardens, shorter than 98% of U.S. towns.
Heating and cooling a home in St. Paul
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In St. Paul, 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 St. Paul compares
Compared with every U.S. town and city on TownTapestry, each counted once.
Common questions about St. Paul’s climate
What is the coldest month in St. Paul?
March, with a typical high of 30° and a low of 21°.
What is the hottest month in St. Paul?
August, with a typical high of 53° and a low of 46°.
How much snow does St. Paul get?
About 64 inches in a normal winter, most of it in January.
When is the first frost in St. Paul?
In half of years the first 32° night comes by September 28, and the last spring frost by June 4.
What is the rainiest month in St. Paul?
October, with 3.3 inches of rain and melted snow. The year totals 24 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 St Paul Island Airport, AK (3 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020.