Douglas County climate

Douglas County Weather in August

NOAA 1991-2020 normals for Chelan, 25.5 km from Douglas County

Average highs run from 90°F on August 1 to 83°F on August 31, and lows from 61°F to 54°F. Normal precipitation for the month is 0.32 in over about 2 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 Douglas County, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
87°F
Average low
58°F
Precipitation
0.32 in
Record high
115°FAug 4, 1961
Record low
36°FAug 22, 1960
Chance of a freeze
0%
Days of 90°F or more
10.9
Daylight
14 h 57 min to 13 h 25 min
Cloud cover
37%
Humidity
45%
Dew point
46°F
Wind
6.9 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 190°F61°F106°F 200951°F 19878%0%
Aug 290°F61°F104°F 202445°F 19568%0%
Aug 390°F61°F107°F 196151°F 20168%0%
Aug 489°F61°F115°F 196150°F 19628%0%
Aug 589°F61°F103°F 199045°F 19698%0%
Aug 689°F60°F103°F 197246°F 20027%0%
Aug 789°F60°F104°F 197149°F 20207%0%
Aug 889°F60°F105°F 197247°F 19497%0%
Aug 989°F60°F107°F 197148°F 19957%0%
Aug 1089°F60°F107°F 197151°F 19937%0%
Aug 1189°F60°F106°F 197150°F 20077%0%
Aug 1288°F59°F104°F 197150°F 20007%0%
Aug 1388°F59°F105°F 200148°F 20207%0%
Aug 1488°F59°F103°F 195648°F 20097%0%
Aug 1588°F59°F104°F 202349°F 19937%0%
Aug 1687°F59°F105°F 202045°F 19766%0%
Aug 1787°F58°F106°F 200845°F 19766%0%
Aug 1887°F58°F108°F 202241°F 19956%0%
Aug 1987°F58°F103°F 196145°F 19806%0%
Aug 2086°F57°F102°F 197747°F 20076%0%
Aug 2186°F57°F102°F 200646°F 19606%0%
Aug 2286°F57°F101°F 195636°F 19606%0%
Aug 2386°F57°F104°F 197037°F 19926%0%
Aug 2485°F56°F104°F 196642°F 19926%0%
Aug 2585°F56°F102°F 195845°F 19606%0%
Aug 2685°F56°F97°F 197246°F 19916%0%
Aug 2784°F55°F101°F 197249°F 19546%0%
Aug 2884°F55°F103°F 197244°F 19666%0%
Aug 2984°F55°F100°F 197241°F 19806%0%
Aug 3083°F54°F102°F 196741°F 20266%0%
Aug 3183°F54°F101°F 196744°F 20066%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Douglas County, in percent, and of at least 0.1 inch of snowfall.024681102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PDT).

August 1
sunrise 5:36 AM, sunset 8:33 PM
August 31
sunrise 6:16 AM, sunset 7:41 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00451350 (Chelan), public domain. Records: NOAA GHCN-Daily, station USW00024141, 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.