Anchorage weather by month
What a typical year looks like in Anchorage, Alaska: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at EAGLE RIVER NATURE CENTER, 7 km from Anchorage; records cover 1981–2026.
The year at a glance
- Precipitation a year
- 22.6 in573 mm
- Snow a year
- Rare
- Last spring freeze
- May 22
- First fall freeze
- Sep 12
- Heating degree days
- 10,764
- Cooling degree days
- 5
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −14°−26° (heating, 99%) and 79°26° (cooling, 1%).
Month by month
Anchorage in January
Highs average 21°−6° and lows 6°−14°, with 2.3 in57 mm of precipitation in a typical January.
- Record high
- 56°13° (2014)
- Record low
- −34°−37° (2026)
- Heating degree days
- 1592
- Cooling degree days
- 0
Anchorage in February
Highs average 28°−2° and lows 12°−11°, with 1.6 in42 mm of precipitation in a typical February.
- Record high
- 56°13° (1982)
- Record low
- −32°−36° (2026)
- Heating degree days
- 1266
- Cooling degree days
- 0
Anchorage in March
Highs average 35°2° and lows 15°−10°, with 1.6 in40 mm of precipitation in a typical March.
- Record high
- 55°13° (2019)
- Record low
- −32°−36° (2026)
- Heating degree days
- 1240
- Cooling degree days
- 0
Anchorage in April
Highs average 47°8° and lows 27°−3°, with 0.76 in19 mm of precipitation in a typical April.
- Record high
- 66°19° (2024)
- Record low
- −7°−22° (1986)
- Heating degree days
- 846
- Cooling degree days
- 0
Anchorage in May
Highs average 58°14° and lows 36°2°, with 0.94 in24 mm of precipitation in a typical May.
- Record high
- 79°26° (2010)
- Record low
- 22°−6° (2012)
- Heating degree days
- 563
- Cooling degree days
- 0
Anchorage in June
Highs average 65°19° and lows 44°7°, with 1.3 in33 mm of precipitation in a typical June.
- Record high
- 88°31° (2013)
- Record low
- 28°−2° (2015)
- Heating degree days
- 315
- Cooling degree days
- 2
Anchorage in July
Highs average 67°20° and lows 48°9°, with 1.7 in43 mm of precipitation in a typical July.
- Record high
- 89°32° (2019)
- Record low
- 29°−2° (2012)
- Heating degree days
- 230
- Cooling degree days
- 3
Anchorage in August
Highs average 65°18° and lows 45°7°, with 2.6 in67 mm of precipitation in a typical August.
- Record high
- 81°27° (2007)
- Record low
- 24°−4° (2026)
- Heating degree days
- 320
- Cooling degree days
- 0
Anchorage in September
Highs average 56°13° and lows 37°3°, with 3.6 in92 mm of precipitation in a typical September.
- Record high
- 72°22° (2016)
- Record low
- 15°−9° (1983)
- Heating degree days
- 552
- Cooling degree days
- 0
Anchorage in OctoberThis month
Highs average 42°6° and lows 26°−4°, with 2.5 in62 mm of precipitation in a typical October.
- Record high
- 65°18° (2006)
- Record low
- −6°−21° (1982)
- Heating degree days
- 964
- Cooling degree days
- 0
Anchorage in November
Highs average 26°−3° and lows 13°−11°, with 1.7 in44 mm of precipitation in a typical November.
- Record high
- 52°11° (2014)
- Record low
- −18°−28° (2024)
- Heating degree days
- 1360
- Cooling degree days
- 0
Anchorage in December
Highs average 23°−5° and lows 9°−13°, with 2 in50 mm of precipitation in a typical December.
- Record high
- 53°12° (1985)
- Record low
- −28°−33° (2025)
- Heating degree days
- 1516
- Cooling degree days
- 0