Tonsina, AK climate
Tonsina has cold, snowy winters and cool summers, with very little rain. A typical July afternoon reaches 70°, a January night drops to -10°, and about 72 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Tonsina feels like
Winter
Spring
Summer
Fall
Tonsina 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 | 5° | -10° | 1.1" | 9.3" | 6 | 31 |
| February | 17° | -5° | 1.0" | 12.4" | 6 | 29 |
| March | 29° | -1° | 0.5" | 6.0" | 3 | 31 |
| April | 45° | 19° | 0.2" | 2.2" | 2 | 29 |
| May | 57° | 31° | 0.5" | 0.4" | 4 | 4 |
| June | 67° | 40° | 1.4" | 0 | 8 | 0 |
| July | 70° | 45° | 1.8" | 0 | 10 | 0 |
| August | 65° | 40° | 1.8" | 0 | 12 | 0 |
| September | 54° | 31° | 1.5" | 1.6" | 10 | 2 |
| October | 36° | 17° | 1.0" | 9.1" | 8 | 17 |
| November | 15° | 0° | 1.3" | 17.0" | 8 | 28 |
| December | 7° | -8° | 1.3" | 13.8" | 7 | 31 |
| Year | 39° | 17° | 13.3" | 71.8" | 84 | 201 |
“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 Tonsina
Tonsina gets 13 inches of rain and melted snow a year. July is the wettest month and April the driest. Rain or snow falls on about 84 days a year. Snow covers the ground about 201 days of the year.
A year-round growing season
Heating and cooling a home in Tonsina
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Tonsina, 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 Tonsina compares
Compared with every U.S. town and city on TownTapestry, each counted once.
Common questions about Tonsina’s climate
What is the coldest month in Tonsina?
January, with a typical high of 5° and a low of -10°.
What is the hottest month in Tonsina?
July, with a typical high of 70° and a low of 45°.
How much snow does Tonsina get?
About 72 inches in a normal winter, most of it in November.
When is the first frost in Tonsina?
Frost is uncommon. Only 100% of years see a night at 32° or below.
What is the rainiest month in Tonsina?
July, with 1.8 inches of rain and melted snow. The year totals 13 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 Tonsina, AK (8 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020.