Sedro-Woolley climate

Sedro-Woolley Weather in August

NOAA 1991-2020 normals for Sedro-Woolley, 0.9 km from Sedro-Woolley

Average highs run from 76°F on August 1 to 73°F on August 31, and lows from 54°F to 52°F. Normal precipitation for the month is 1.60 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 Sedro-Woolley, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
75°F
Average low
53°F
Precipitation
1.60 in
Record high
97°FAug 9, 1960
Record low
34°FAug 24, 1910
Chance of a freeze
0%
Daylight
15 h 02 min to 13 h 27 min
Cloud cover
48%
Humidity
77%
Dew point
53°F
Wind
2.9 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 176°F54°F94°F 189839°F 200619%0%
Aug 276°F54°F89°F 191738°F 190819%0%
Aug 376°F54°F87°F 200940°F 190019%0%
Aug 476°F54°F88°F 190837°F 190019%0%
Aug 576°F54°F90°F 189837°F 190919%0%
Aug 676°F54°F95°F 190836°F 190920%0%
Aug 776°F53°F88°F 190837°F 190920%0%
Aug 876°F53°F95°F 196040°F 190920%0%
Aug 976°F53°F97°F 196042°F 190420%0%
Aug 1076°F53°F90°F 198139°F 190821%0%
Aug 1176°F53°F89°F 197140°F 190421%0%
Aug 1276°F53°F90°F 195240°F 191021%0%
Aug 1376°F53°F90°F 191439°F 195521%0%
Aug 1476°F53°F88°F 197740°F 195522%0%
Aug 1576°F53°F88°F 192341°F 189822%0%
Aug 1675°F53°F92°F 191039°F 190623%0%
Aug 1775°F53°F93°F 196738°F 190623%0%
Aug 1875°F53°F92°F 197739°F 190623%0%
Aug 1975°F53°F87°F 202240°F 190424%0%
Aug 2075°F53°F87°F 201536°F 194525%0%
Aug 2175°F53°F87°F 189739°F 194725%0%
Aug 2275°F53°F88°F 190840°F 191926%0%
Aug 2375°F53°F86°F 201739°F 190926%0%
Aug 2474°F52°F89°F 193334°F 191027%0%
Aug 2574°F52°F90°F 191638°F 190228%0%
Aug 2674°F52°F87°F 193439°F 190528%0%
Aug 2774°F52°F89°F 201639°F 195729%0%
Aug 2874°F52°F86°F 193640°F 190930%0%
Aug 2974°F52°F90°F 196737°F 190230%0%
Aug 3073°F52°F89°F 194434°F 190931%0%
Aug 3173°F52°F85°F 202235°F 190932%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Sedro-Woolley, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PDT).

August 1
sunrise 5:44 AM, sunset 8:46 PM
August 31
sunrise 6:25 AM, sunset 7:52 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00457507 (Sedro-Woolley), public domain. Records: NOAA GHCN-Daily, station USC00457507, 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.