Cosmopolis climate

Cosmopolis Weather in August

NOAA 1991-2020 normals for Aberdeen, 4.4 km from Cosmopolis

Average highs run from 69°F on August 1 to 70°F on August 31, and lows from 55°F to 53°F. Normal precipitation for the month is 1.52 in over about 7 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 Cosmopolis, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
69°F
Average low
54°F
Precipitation
1.52 in
Record high
95°FAug 10, 1981
Record low
40°FAug 29, 1965
Chance of a freeze
0%
Days of 90°F or more
0.5
Daylight
14 h 52 min to 13 h 22 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 169°F55°F86°F 202444°F 197620%0%
Aug 269°F55°F89°F 201742°F 197320%0%
Aug 369°F55°F89°F 201742°F 196920%0%
Aug 469°F55°F91°F 201246°F 195520%0%
Aug 569°F55°F80°F 200845°F 200220%0%
Aug 669°F55°F86°F 197245°F 196820%0%
Aug 769°F55°F90°F 197247°F 197120%0%
Aug 869°F55°F91°F 198145°F 196920%0%
Aug 969°F55°F90°F 200443°F 195920%0%
Aug 1069°F55°F95°F 198143°F 195420%0%
Aug 1169°F55°F93°F 196145°F 196620%0%
Aug 1269°F55°F88°F 202145°F 197221%0%
Aug 1369°F55°F89°F 200241°F 195521%0%
Aug 1469°F55°F94°F 202345°F 195521%0%
Aug 1569°F55°F88°F 202045°F 196021%0%
Aug 1669°F55°F88°F 198543°F 199921%0%
Aug 1769°F55°F84°F 202244°F 195522%0%
Aug 1869°F54°F86°F 201642°F 197322%0%
Aug 1969°F54°F95°F 201643°F 197322%0%
Aug 2069°F54°F90°F 196647°F 196022%0%
Aug 2170°F54°F87°F 201842°F 197323%0%
Aug 2270°F54°F85°F 198846°F 196923%0%
Aug 2370°F54°F86°F 198543°F 196923%0%
Aug 2470°F54°F90°F 198242°F 195424%0%
Aug 2570°F54°F86°F 201645°F 195724%0%
Aug 2670°F54°F86°F 201641°F 195525%0%
Aug 2770°F54°F92°F 201943°F 195525%0%
Aug 2870°F54°F93°F 201745°F 195725%0%
Aug 2970°F54°F84°F 200740°F 196526%0%
Aug 3070°F54°F88°F 202243°F 197226%0%
Aug 3170°F53°F94°F 198743°F 196927%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Cosmopolis, 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 8:47 PM
August 31
sunrise 6:34 AM, sunset 7:56 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00450008 (Aberdeen), 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.