Yearly weather and climate in Anchorage, United States

The yearly weather in Anchorage runs from around -11°C in January to 18°C in July. April is the driest month at 9 rainy days; September the wettest at 17. Here is the annual climate data, so you know what you are packing for.

Best time to visit

Weather is fairly consistent year-round. Pack for stable conditions.

Sunshine

Expect up to 10.4 hours of clear skies in Jun, but only 1.2 hours in Dec. Pack sunglasses and SPF accordingly.

Rainfall

It rains the most in Aug (172mm over 16 days). A reliable rain jacket is a must-have if visiting then.

Day-to-night swings

Temperatures typically drop by 7°C from day to night. Make sure to pack layers for the evenings.

Average temperatures and rainfall

Daily highs and lows in Anchorage, averaged over 10 years of recorded weather, with the number of days it typically rains.

  1. -622°-1112°10Jan
  2. -425°-1014°13Feb
  3. 033°-719°10Mar
  4. 542°-424°9Apr
  5. 1254°439°16May
  6. 1763°949°11Jun
  7. 1864°1152°13Jul
  8. 1763°1151°16Aug
  9. 1254°643°17Sep
  10. 540°-131°11Oct
  11. -228°-719°15Nov
  12. -523°-915°14Dec

Bars span the average daily low to high. Numbers under the drop are rainy days per month (1mm or more) — hover a month for its total rainfall. Apr is typically driest at 9 days (35mm); Sep the wettest at 17 days (122mm).

Average monthly temperature and rainfall in Anchorage
MonthAverage highAverage lowRainy daysTotal rainfall
Jan-6°C-11°C1043mm
Feb-4°C-10°C1354mm
Mar0°C-7°C1037mm
Apr5°C-4°C935mm
May12°C4°C1657mm
Jun17°C9°C1154mm
Jul18°C11°C13119mm
Aug17°C11°C16172mm
Sep12°C6°C17122mm
Oct5°C-1°C1168mm
Nov-2°C-7°C1587mm
Dec-5°C-9°C1468mm

Weather data by Open-Meteo.com

Going to Anchorage?

Pack smarter.

Averages get you close, but the week you travel is what matters. Get the live forecast, a smart packing list, and discover the best local spots and activities in Anchorage with Packola.

Get the app