Climate averages 1991–2020

Anchorage weather
in June.

A mild, moderately wet month: the 3rd warmest and the 4th driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 15.4°C Daytime mean, June

Average low 9.0°C Night-time mean, June

Rainfall 40 mm 9 days with ≥1 mm

Daylight 19 h Sunrise to sunset, per day

June is a mild month in Anchorage: daytime highs average 15.4°C and nights cool to about 9.0°C. By daytime temperature it is the 3rd warmest of the 12 months.

Expect about 40 mm of rain on roughly 9 days, which makes June a moderately wet month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 19 h 11 min on an average June day.

Among the 498 cities listed in the United States, Anchorage ranks 498th of 498 for the warmest June highs and joint 151st of 498 for the driest June (rainfall, lowest first). The mean June high of those 498 cities is 27.9°C; Anchorage is 12.5°C cooler than that mean.

From June to July, average highs rise by 1.9°C to 17.3°C, and monthly rainfall rises from 40 mm to 73 mm.

The annual picture

June in context

30-year average

Average highAverage low°C

Monthly precipitation

Average total · mm

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Anchorage climate table

1991–2020

Monthly climate averages for Anchorage, 1991–2020
Month	Average highHigh / low	Average low	Precipitation mm/month	Wet days ≥1 mm/day	Daylight hours/dayDaylight h/day
January	-6.8°C-10.9°C	-10.9°C	50	10.4	6.56 h
February	-3.9°C-8.5°C	-8.5°C	50	9.7	8.99 h
March	-1.2°C-7.2°C	-7.2°C	38	8.5	11.712 h
April	4.7°C-1.8°C	-1.8°C	29	7.3	14.715 h
May	10.1°C2.9°C	2.9°C	30	7.1	17.417 h
June, selected	15.4°C9.0°C	9.0°C	40	8.9	19.219 h
July	17.3°C11.9°C	11.9°C	73	12.5	18.418 h
August	16.3°C11.0°C	11.0°C	107	14.8	15.916 h
September	11.8°C6.7°C	6.7°C	117	15.3	13.013 h
October	4.4°C-0.2°C	-0.2°C	90	13.2	10.110 h
November	-2.6°C-6.8°C	-6.8°C	66	11.7	7.47 h
December	-5.1°C-9.4°C	-9.4°C	73	12.9	5.66 h

Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Anchorage) is explained once on the Anchorage year overview and on the Sources, method and limits page.