Washington climate

Washington Weather in August

NOAA 1991-2020 normals for Washington 1 W, 2.5 km from Washington

Average highs run from 87°F on August 1 to 85°F on August 31, and lows from 67°F to 62°F. Normal precipitation for the month is 3.17 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 Washington, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
86°F
Average low
65°F
Precipitation
3.17 in
Record high
108°FAug 7, 1930
Record low
42°FAug 29, 1965
Chance of a freeze
0%
Days of 90°F or more
8.4
Daylight
14 h 09 min to 13 h 03 min
Cloud cover
49%
Humidity
71%
Dew point
65°F
Wind
5.1 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°F102°F 195353°F 192524%0%
Aug 287°F67°F104°F 193052°F 192024%0%
Aug 387°F67°F104°F 193048°F 196524%0%
Aug 487°F67°F101°F 189949°F 191223%0%
Aug 587°F67°F105°F 191847°F 199323%0%
Aug 687°F67°F105°F 193051°F 199423%0%
Aug 787°F66°F108°F 193051°F 199023%0%
Aug 887°F66°F107°F 193051°F 198923%0%
Aug 987°F66°F108°F 193053°F 198923%0%
Aug 1087°F66°F104°F 191154°F 197223%0%
Aug 1187°F66°F102°F 194153°F 196722%0%
Aug 1287°F66°F101°F 191849°F 200422%0%
Aug 1387°F66°F100°F 194346°F 196422%0%
Aug 1487°F66°F99°F 191847°F 200422%0%
Aug 1587°F66°F103°F 191348°F 201322%0%
Aug 1687°F65°F99°F 198849°F 200422%0%
Aug 1786°F65°F103°F 193646°F 199921%0%
Aug 1886°F65°F107°F 193649°F 196321%0%
Aug 1986°F65°F107°F 193652°F 193221%0%
Aug 2086°F65°F105°F 193652°F 189721%0%
Aug 2186°F65°F105°F 193650°F 202420%0%
Aug 2286°F64°F104°F 193649°F 202420%0%
Aug 2386°F64°F100°F 193648°F 192320%0%
Aug 2486°F64°F102°F 193650°F 192720%0%
Aug 2586°F64°F100°F 193648°F 194220%0%
Aug 2686°F64°F103°F 193649°F 194519%0%
Aug 2785°F63°F101°F 195349°F 202519%0%
Aug 2885°F63°F106°F 193648°F 198619%0%
Aug 2985°F63°F102°F 195342°F 196519%0%
Aug 3085°F63°F100°F 195146°F 198619%0%
Aug 3185°F62°F103°F 195345°F 191519%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Washington, in percent, and of at least 0.1 inch of snowfall.05101520251102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EDT).

August 1
sunrise 6:50 AM, sunset 8:59 PM
August 31
sunrise 7:17 AM, sunset 8:20 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00129253 (Washington 1 W), public domain. Records: NOAA GHCN-Daily, station USC00129253, 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.