Anchorage climate

Anchorage Weather in August

NOAA 1991-2020 normals for Anchorage Merrill Fld, 2.4 km from Anchorage

Average highs run from 68°F on August 1 to 62°F on August 31, and lows from 54°F to 47°F. Normal precipitation for the month is 2.48 in over about 16 wet days.

August day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Anchorage, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
66°F
Average low
51°F
Precipitation
2.48 in
Record high
83°FAug 9, 2003
Record low
31°FAug 24, 1948
Chance of a freeze
0%
Daylight
17 h 04 min to 14 h 18 min
Cloud cover
76%
Humidity
82%
Dew point
49°F
Wind
5.1 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Aug 168°F54°F79°F 199839°F 192947%0%
Aug 268°F54°F80°F 191940°F 191747%0%
Aug 368°F54°F78°F 199935°F 192147%0%
Aug 468°F54°F78°F 201536°F 192148%0%
Aug 568°F54°F78°F 202440°F 193548%0%
Aug 668°F54°F79°F 201939°F 191948%0%
Aug 768°F53°F82°F 201938°F 191648%0%
Aug 867°F53°F81°F 201936°F 191849%0%
Aug 967°F53°F83°F 200338°F 193749%0%
Aug 1067°F53°F79°F 200340°F 194849%0%
Aug 1167°F53°F80°F 200436°F 192250%0%
Aug 1267°F53°F80°F 201941°F 194050%0%
Aug 1367°F52°F81°F 201935°F 194650%0%
Aug 1466°F52°F80°F 195032°F 194650%0%
Aug 1566°F52°F79°F 202036°F 194951%0%
Aug 1666°F52°F83°F 200438°F 193951%0%
Aug 1766°F51°F82°F 200432°F 194751%0%
Aug 1866°F51°F73°F 201537°F 194751%0%
Aug 1965°F51°F72°F 195038°F 194951%0%
Aug 2065°F51°F72°F 194136°F 191851%0%
Aug 2165°F50°F77°F 202036°F 191851%0%
Aug 2265°F50°F82°F 192333°F 191651%0%
Aug 2365°F50°F78°F 200433°F 194851%0%
Aug 2464°F50°F75°F 200431°F 194851%0%
Aug 2564°F49°F73°F 201934°F 194851%0%
Aug 2664°F49°F74°F 202331°F 191851%0%
Aug 2763°F49°F74°F 201633°F 195251%0%
Aug 2863°F48°F78°F 201634°F 192051%0%
Aug 2963°F48°F77°F 193037°F 193451%0%
Aug 3063°F48°F77°F 193035°F 194751%0%
Aug 3162°F47°F74°F 193032°F 194851%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Anchorage, in percent, and of at least 0.1 inch of snowfall.02040601102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (AKDT).

August 1
sunrise 5:33 AM, sunset 10:37 PM
August 31
sunrise 6:50 AM, sunset 9:08 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00026409 (Anchorage Merrill Fld), public domain. Records: NOAA GHCN-Daily, station USW00026409, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.