Circle, AK climate
Circle has cold winters and cool summers, with very little rain. A typical July afternoon reaches 72°, a January night drops to -23°.
NOAA 1991-2020 climate normals Updated once a decade5° cooler than normal today. The forecast high is 34°, and a typical Oct 1 in Circle peaks around 39°.Live forecast: National Weather Service · Normal: NOAA 1991–2020
What a year in Circle feels like
Winter
Spring
Summer
Fall
Circle weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt |
|---|---|---|---|
| January | -9° | -23° | 0.4" |
| February | 1° | -19° | 0.3" |
| March | 15° | -13° | 0.2" |
| April | 40° | 11° | 0.3" |
| May | 59° | 31° | 0.7" |
| June | 71° | 42° | 2.6" |
| July | 72° | 45° | 2.6" |
| August | 65° | 39° | 1.8" |
| September | 52° | 28° | 1.4" |
| October | 27° | 10° | 0.8" |
| November | 4° | -12° | 0.4" |
| December | -5° | -20° | 0.5" |
| Year | 33° | 10° | 12.1" |
“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 Circle
Circle gets 12 inches of rain and melted snow a year. June is the wettest month and March the driest.
About 92 frost-free days a year
In half of years the last 32° night comes by May 25 and the first one by August 26. That leaves about 92 frost-free days for gardens, shorter than 99% of U.S. towns.
Heating and cooling a home in Circle
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Circle, 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 Circle compares
Compared with every U.S. town and city on TownTapestry, each counted once.
Common questions about Circle’s climate
What is the coldest month in Circle?
January, with a typical high of -9° and a low of -23°.
What is the hottest month in Circle?
July, with a typical high of 72° and a low of 45°.
When is the first frost in Circle?
In half of years the first 32° night comes by August 26, and the last spring frost by May 25.
What is the rainiest month in Circle?
June, with 2.6 inches of rain and melted snow. The year totals 12 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 Central #2, AK (22 mi, frost, heat and degree days). Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020.