Washington County climate

Washington County Weather in August

NOAA 1991-2020 normals for Potosi 4 Sw, 8 km from Washington County

Average highs run from 87°F on August 1 to 83°F on August 31, and lows from 67°F to 62°F. Normal precipitation for the month is 4.00 in over about 9 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 Washington County, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
85°F
Average low
65°F
Precipitation
4.00 in
Record high
109°FAug 29, 1984
Record low
41°FAug 21, 1950
Chance of a freeze
0%
Days of 90°F or more
8.1
Daylight
14 h 05 min to 13 h 01 min
Cloud cover
48%
Humidity
69%
Dew point
64°F
Wind
3.4 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 187°F67°F104°F 198051°F 196028%0%
Aug 286°F67°F106°F 198753°F 197328%0%
Aug 386°F67°F106°F 196446°F 195028%0%
Aug 486°F67°F104°F 194747°F 197428%0%
Aug 586°F67°F107°F 195649°F 197428%0%
Aug 686°F66°F105°F 194748°F 194828%0%
Aug 786°F66°F102°F 200749°F 195728%0%
Aug 886°F66°F104°F 195648°F 198928%0%
Aug 986°F66°F104°F 194450°F 197628%0%
Aug 1086°F66°F105°F 194449°F 197228%0%
Aug 1186°F66°F106°F 194452°F 198928%0%
Aug 1286°F66°F106°F 200748°F 196728%0%
Aug 1386°F66°F102°F 194445°F 196428%0%
Aug 1486°F66°F107°F 200749°F 200428%0%
Aug 1586°F66°F108°F 200749°F 196328%0%
Aug 1686°F65°F102°F 198848°F 199228%0%
Aug 1786°F65°F104°F 200051°F 199228%0%
Aug 1885°F65°F106°F 195454°F 199228%0%
Aug 1985°F65°F105°F 196246°F 195327%0%
Aug 2085°F65°F106°F 196246°F 196727%0%
Aug 2185°F65°F104°F 200341°F 195027%0%
Aug 2285°F64°F102°F 193844°F 195027%0%
Aug 2385°F64°F105°F 193848°F 194926%0%
Aug 2484°F64°F106°F 193846°F 194226%0%
Aug 2584°F64°F103°F 194347°F 195826%0%
Aug 2684°F63°F104°F 194348°F 194526%0%
Aug 2784°F63°F99°F 195347°F 194626%0%
Aug 2883°F63°F102°F 199043°F 196725%0%
Aug 2983°F63°F109°F 198441°F 198625%0%
Aug 3083°F62°F106°F 198443°F 198625%0%
Aug 3183°F62°F105°F 195345°F 194625%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Washington 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 (CDT).

August 1
sunrise 6:07 AM, sunset 8:12 PM
August 31
sunrise 6:33 AM, sunset 7:34 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00236826 (Potosi 4 Sw), public domain. Records: NOAA GHCN-Daily, station USC00238515, 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.