Anchorage Municipality · Alaska
Anchorage, AK weather averages
NOAA climate normals for 1991-2020, measured at Anchorage Merrill Fld, 1.1 km from the city centre — month by month temperature, rain and snow.
Quick answer
Anchorage averages a daily high of 44.8°F and a daily low of 30.1°F across the year, with 17.91 inches of precipitation. July is the warmest month at 68°F and January the coldest at 8.7°F.
- Average annual high
- 44.8°FWarmest month July
- Average annual low
- 30.1°FColdest month January
- Precipitation per year
- 17.91 inWettest month September
- Snowfall per year
- —186.1 days at or below 32°F
Anchorage weather month by month
Normal daily high and low, precipitation and snowfall for each month, 1991-2020.
| Month | High °F | Low °F | Precip in | Snow in | Range |
|---|---|---|---|---|---|
| January | 22.8 | 8.7 | 0.84 | — | 8.7 to 22.8 degrees |
| February | 27.4 | 10.9 | 0.82 | — | 10.9 to 27.4 degrees |
| March | 35.1 | 18.3 | 0.61 | — | 18.3 to 35.1 degrees |
| April | 46.4 | 29.7 | 0.41 | — | 29.7 to 46.4 degrees |
| May | 57.6 | 41 | 0.79 | — | 41 to 57.6 degrees |
| June | 64.8 | 48.9 | 1.2 | — | 48.9 to 64.8 degrees |
| July | 68 | 53.5 | 2.07 | — | 53.5 to 68 degrees |
| August | 64.6 | 50.8 | 3.12 | — | 50.8 to 64.6 degrees |
| September | 56.3 | 42.2 | 3.23 | — | 42.2 to 56.3 degrees |
| October | 41.3 | 29.2 | 1.78 | — | 29.2 to 41.3 degrees |
| November | 27.6 | 15.5 | 1.08 | — | 15.5 to 27.6 degrees |
| December | 24.5 | 11.1 | 1.96 | — | 11.1 to 24.5 degrees |
Source: NOAA NCEI, U.S. Climate Normals 1991-2020 — station USW00026409, Anchorage Merrill Fld · rates as published for 1991-2020 normals
How to read Anchorage climate normals
What a climate normal is, and what it is not.
A normal is the average of thirty years of daily observations at one station — here Anchorage Merrill Fld, 1.1 km from the centre of Anchorage. It describes a typical year, so any single year will run warmer, cooler, wetter or drier. Readings taken at an airport on the edge of town usually sit a degree or two below a dense downtown on summer nights. Anchorage sees about 0 days a year at or above 90°F.
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Other Anchorage data on this site.