Girdwood climate

Girdwood Weather in August

NOAA 1991-2020 normals for Alyeska, 3.4 km from Girdwood

Average highs run from 66°F on August 1 to 61°F on August 31, and lows from 50°F to 45°F. Normal precipitation for the month is 4.86 in over about 17 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 Girdwood, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
65°F
Average low
48°F
Precipitation
4.86 in
Record high
82°FAug 16, 2019
Record low
30°FAug 23, 2000
Chance of a freeze
1%
Daylight
17 h 01 min to 14 h 18 min
Cloud cover
76%
Humidity
86%
Dew point
45°F
Wind
5.6 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 166°F50°F75°F 202637°F 200251%0%
Aug 266°F50°F76°F 200433°F 200951%0%
Aug 366°F50°F72°F 202235°F 200951%0%
Aug 466°F49°F71°F 201539°F 200352%0%
Aug 566°F49°F76°F 201935°F 200352%0%
Aug 666°F49°F79°F 201934°F 200852%0%
Aug 766°F49°F78°F 201933°F 200852%0%
Aug 866°F49°F75°F 201933°F 201253%0%
Aug 966°F49°F73°F 201934°F 200853%0%
Aug 1066°F49°F72°F 200535°F 200053%0%
Aug 1166°F49°F73°F 200538°F 199953%0%
Aug 1266°F49°F74°F 200534°F 201554%0%
Aug 1365°F48°F72°F 200536°F 201554%0%
Aug 1465°F48°F74°F 202634°F 200254%0%
Aug 1565°F48°F78°F 201935°F 202155%0%
Aug 1665°F48°F82°F 201934°F 200055%0%
Aug 1765°F48°F76°F 200434°F 200055%0%
Aug 1865°F48°F71°F 201534°F 201255%0%
Aug 1964°F47°F69°F 201533°F 201956%0%
Aug 2064°F47°F68°F 202033°F 201056%0%
Aug 2164°F47°F71°F 200135°F 200956%0%
Aug 2264°F47°F69°F 200434°F 202157%0%
Aug 2364°F47°F70°F 200430°F 200057%0%
Aug 2463°F46°F69°F 201931°F 199957%0%
Aug 2563°F46°F68°F 200434°F 200757%0%
Aug 2663°F46°F67°F 201932°F 200258%0%
Aug 2762°F46°F70°F 201635°F 200258%0%
Aug 2862°F45°F69°F 201633°F 200259%0%
Aug 2962°F45°F68°F 200732°F 199959%0%
Aug 3062°F45°F65°F 201633°F 201459%0%
Aug 3161°F45°F65°F 200432°F 201660%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Girdwood, 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 5:32 AM, sunset 10:33 PM
August 31
sunrise 6:47 AM, sunset 9:05 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00500243 (Alyeska), public domain. Records: NOAA GHCN-Daily, station USW00026492, 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.