Grays Harbor County climate

Grays Harbor County Weather in August

NOAA 1991-2020 normals for Humptulips Salmon Hatchery, 15.8 km from Grays Harbor County

Average highs run from 71°F on August 1 to 70°F on August 31, and lows from 51°F to 49°F. Normal precipitation for the month is 2.49 in over about 6 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 Grays Harbor County, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
70°F
Average low
50°F
Precipitation
2.49 in
Record high
95°FAug 10, 1981
Record low
40°FAug 29, 1965
Chance of a freeze
0%
Days of 90°F or more
0.6
Daylight
14 h 53 min to 13 h 24 min
Cloud cover
48%
Humidity
86%
Dew point
56°F
Wind
4.3 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 171°F51°F86°F 202444°F 197618%0%
Aug 271°F51°F89°F 201742°F 197318%0%
Aug 371°F51°F89°F 201742°F 196918%0%
Aug 471°F51°F91°F 201246°F 195518%0%
Aug 571°F51°F80°F 200845°F 200219%0%
Aug 671°F51°F86°F 197245°F 196819%0%
Aug 771°F51°F90°F 197247°F 197119%0%
Aug 871°F51°F91°F 198145°F 196919%0%
Aug 971°F51°F90°F 200443°F 195919%0%
Aug 1071°F50°F95°F 198143°F 195419%0%
Aug 1171°F50°F93°F 196145°F 196619%0%
Aug 1271°F50°F88°F 202145°F 197220%0%
Aug 1371°F50°F89°F 200241°F 195520%0%
Aug 1470°F50°F94°F 202345°F 195520%0%
Aug 1570°F50°F88°F 202045°F 196020%0%
Aug 1670°F50°F88°F 198543°F 199921%0%
Aug 1770°F50°F84°F 202244°F 195521%0%
Aug 1870°F50°F86°F 201642°F 197321%0%
Aug 1970°F50°F95°F 201643°F 197321%0%
Aug 2070°F50°F90°F 196647°F 196022%0%
Aug 2170°F50°F87°F 201842°F 197322%0%
Aug 2270°F50°F85°F 198846°F 196923%0%
Aug 2370°F50°F86°F 198543°F 196923%0%
Aug 2470°F50°F90°F 198242°F 195423%0%
Aug 2570°F50°F86°F 201645°F 195724%0%
Aug 2670°F49°F86°F 201641°F 195524%0%
Aug 2770°F49°F92°F 201943°F 195525%0%
Aug 2870°F49°F93°F 201745°F 195725%0%
Aug 2970°F49°F84°F 200740°F 196526%0%
Aug 3070°F49°F88°F 202243°F 197226%0%
Aug 3170°F49°F94°F 198743°F 196926%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Grays Harbor County, in percent, and of at least 0.1 inch of snowfall.01020301102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PDT).

August 1
sunrise 5:55 AM, sunset 8:48 PM
August 31
sunrise 6:33 AM, sunset 7:57 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00453826 (Humptulips Salmon Hatchery), public domain. Records: NOAA GHCN-Daily, station USW00094225, 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.