Port Alexander, AK climate
Port Alexander has mild, snowy winters and cool summers, with plenty of rain. A typical July afternoon reaches 64°, a January night drops to 32°, and about 56 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Port Alexander feels like
Winter
Spring
Summer
Fall
Port Alexander 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 | 40° | 32° | 16.3" | 12.3" | 24 | 9 |
| February | 41° | 33° | 11.7" | 12.0" | 19 | 10 |
| March | 43° | 33° | 11.1" | 11.9" | 22 | 7 |
| April | 50° | 37° | 8.6" | 1.2" | 19 | 1 |
| May | 57° | 42° | 7.9" | 0.1" | 17 | 0 |
| June | 61° | 47° | 6.7" | 0 | 16 | 0 |
| July | 64° | 50° | 9.0" | 0 | 17 | 0 |
| August | 64° | 50° | 13.9" | 0 | 19 | 0 |
| September | 58° | 47° | 19.3" | 0 | 23 | 0 |
| October | 51° | 42° | 19.9" | 0.3" | 25 | 0 |
| November | 44° | 36° | 18.1" | 4.1" | 24 | 3 |
| December | 41° | 33° | 19.6" | 14.1" | 24 | 9 |
| Year | 51° | 40° | 162.0" | 56.0" | 248 | 39 |
“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 Port Alexander
Port Alexander gets 162 inches of rain and melted snow a year. October is the wettest month and June the driest. Rain or snow falls on about 248 days a year. Snow covers the ground about 39 days of the year.
About 198 frost-free days a year
In half of years the last 32° night comes by April 18 and the first one by November 5. That leaves about 198 frost-free days for gardens, longer than 71% of U.S. towns.
Heating and cooling a home in Port Alexander
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Port Alexander, 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 Port Alexander compares
Compared with every U.S. town and city on TownTapestry, each counted once.
Common questions about Port Alexander’s climate
What is the coldest month in Port Alexander?
January, with a typical high of 40° and a low of 32°.
What is the hottest month in Port Alexander?
July, with a typical high of 64° and a low of 50°.
How much snow does Port Alexander get?
About 56 inches in a normal winter, most of it in December.
When is the first frost in Port Alexander?
In half of years the first 32° night comes by November 5, and the last spring frost by April 18.
What is the rainiest month in Port Alexander?
October, with 19.9 inches of rain and melted snow. The year totals 162 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 Port Alexander, AK (1 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020.