King County climate

King County Weather in August

NOAA 1991-2020 normals for Guthrie, 7.6 km from King County

Average highs run from 99°F on August 1 to 94°F on August 31, and lows from 71°F to 67°F. Normal precipitation for the month is 2.83 in over about 5 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 King County, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
97°F
Average low
69°F
Precipitation
2.83 in
Record high
111°FAug 6, 1964
Record low
52°FAug 26, 2010
Chance of a freeze
0%
Days of 90°F or more
26.6
Daylight
13 h 48 min to 12 h 54 min
Cloud cover
42%
Humidity
50%
Dew point
61°F
Wind
9.2 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 199°F71°F108°F 201263°F 196016%0%
Aug 299°F71°F110°F 201260°F 197116%0%
Aug 399°F71°F108°F 201262°F 197116%0%
Aug 499°F71°F108°F 201161°F 202116%0%
Aug 599°F71°F109°F 201162°F 197416%0%
Aug 699°F71°F111°F 196460°F 199016%0%
Aug 799°F71°F107°F 200360°F 197416%0%
Aug 899°F71°F110°F 201159°F 198917%0%
Aug 999°F71°F105°F 195562°F 198917%0%
Aug 1099°F71°F106°F 195361°F 198917%0%
Aug 1198°F70°F110°F 202360°F 196017%0%
Aug 1298°F70°F109°F 196957°F 196717%0%
Aug 1398°F70°F109°F 202059°F 196717%0%
Aug 1498°F70°F105°F 195260°F 196717%0%
Aug 1598°F70°F107°F 195260°F 196317%0%
Aug 1698°F70°F107°F 202458°F 199417%0%
Aug 1797°F70°F110°F 202360°F 200418%0%
Aug 1897°F69°F109°F 202362°F 195018%0%
Aug 1997°F69°F107°F 199460°F 201518%0%
Aug 2097°F69°F108°F 202657°F 199218%0%
Aug 2197°F69°F110°F 202456°F 195618%0%
Aug 2296°F69°F109°F 202659°F 196618%0%
Aug 2396°F69°F111°F 202455°F 196618%0%
Aug 2496°F68°F109°F 202655°F 196618%0%
Aug 2595°F68°F106°F 195258°F 196618%0%
Aug 2695°F68°F106°F 195252°F 201017%0%
Aug 2795°F68°F107°F 201157°F 201017%0%
Aug 2895°F67°F110°F 201155°F 198717%0%
Aug 2994°F67°F104°F 196455°F 198717%0%
Aug 3094°F67°F111°F 201158°F 198817%0%
Aug 3194°F67°F106°F 195257°F 196717%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at King County, in percent, and of at least 0.1 inch of snowfall.051015201102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

August 1
sunrise 6:53 AM, sunset 8:41 PM
August 31
sunrise 7:14 AM, sunset 8:08 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00413828 (Guthrie), public domain. Records: NOAA GHCN-Daily, station USW00023007, 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.