30-year climate normals

Anchorage Municipality Climate and Weather Averages

Hottest month — July

67.4°

average daily high. The coldest month is January, averaging a low of 6.4°F.

Anchorage Municipality gets 22.55" of precipitation a year, and 39% of it falls in Aug, Sep, Oct.

Temperature through the year

Each bar spans the average daily low to the average daily high for that month.

Month	Avg high	Avg low	Precip
January	20.9°	6.4°	2.26"
February	28.0°	11.6°	1.64"
March	35.3°	14.7°	1.56"
April	47.1°	26.5°	0.76"
May	58.0°	35.7°	0.94"
June	65.4°	43.7°	1.31"
July	67.4°	47.9°	1.68"
August	64.5°	44.9°	2.62"
September	56.0°	37.2°	3.64"
October	42.1°	25.7°	2.46"
November	26.4°	12.9°	1.72"
December	23.3°	8.9°	1.96"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 39% falling in the wettest three months (Aug, Sep, Oct).

January 2.26"

February 1.64"

March 1.56"

April 0.76"

May 0.94"

June 1.31"

July 1.68"

August 2.62"

September 3.64"

October 2.46"

November 1.72"

December 1.96"

Annual total 22.55"

What this climate costs you

Degree days measure how hard a building has to work to stay comfortable. They are the reason two identical houses have very different power bills, and they are the link between the weather here and what you pay every month.

Cooling degree days How much air conditioning the climate demands 5

Heating degree days How much heating the climate demands 10,764

Approximate annual cooling cost At 28.23¢/kWh, Alaska average $1

Approximate annual electric heating cost Lower where heating is gas rather than electric $1,064

These are rough planning figures from degree days and the state electricity price, not a bill estimate. House size, insulation and fuel type move them a lot. See the full cost of owning a home in Anchorage Municipality, where electricity is one line of eight.

Common questions

What is the weather like in Anchorage Municipality?

Anchorage Municipality averages a high of 67.4°F in July and a low of 6.4°F in January. Annual precipitation is 22.55 inches, with essentially no snow.

When is the rainy season in Anchorage Municipality?

The wettest stretch is Aug, Sep, Oct, which accounts for 39% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Anchorage Municipality?

The average daily high in July, the hottest month, is 67.4°F. That drives 5 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Anchorage Municipality?

Effectively no. Measurable snowfall is rare in Anchorage Municipality.

Sources

Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station EAGLE RVR NATURE CTR, AK US (USC00502642), 4.2 miles from the county centroid.
Heating and cooling degree days — NOAA, same station and period.
Electricity price — US Energy Information Administration, Electric Power Monthly Table 5.6.A, Alaska residential average.
Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.