Ashburn climate

Ashburn Weather in August

NOAA 1991-2020 normals for Ashburn 3 Ene, 2.9 km from Ashburn

Average highs run from 91°F on August 1 to 89°F on August 31, and lows from 71°F to 69°F.

August day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Ashburn, in °F, with the record for each date.5060708090100110151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
91°F
Average low
70°F
Record high
104°FAug 1, 1986
Record low
56°FAug 30, 1986
Chance of a freeze
0%
Days of 90°F or more
19.3
Daylight
13 h 40 min to 12 h 50 min
Cloud cover
56%
Humidity
75%
Dew point
71°F
Wind
6.5 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 191°F71°F104°F 198662°F 20170%
Aug 291°F71°F103°F 199963°F 20110%
Aug 391°F71°F103°F 198663°F 19980%
Aug 491°F71°F100°F 198062°F 19500%
Aug 591°F71°F102°F 198057°F 19500%
Aug 691°F71°F101°F 198061°F 19480%
Aug 791°F71°F101°F 190559°F 19500%
Aug 891°F71°F101°F 198062°F 20040%
Aug 991°F71°F104°F 198063°F 20020%
Aug 1091°F71°F103°F 198062°F 19800%
Aug 1191°F71°F104°F 200760°F 19500%
Aug 1291°F71°F104°F 200762°F 19620%
Aug 1391°F71°F101°F 199959°F 19790%
Aug 1491°F71°F101°F 199558°F 19640%
Aug 1591°F71°F103°F 199559°F 19670%
Aug 1691°F71°F103°F 199559°F 19670%
Aug 1791°F70°F103°F 199561°F 20120%
Aug 1891°F70°F103°F 200063°F 20120%
Aug 1991°F70°F101°F 198362°F 19760%
Aug 2090°F70°F103°F 198360°F 19430%
Aug 2190°F70°F104°F 198360°F 19430%
Aug 2290°F70°F101°F 198361°F 19430%
Aug 2390°F70°F103°F 198361°F 20090%
Aug 2490°F70°F102°F 196860°F 19810%
Aug 2590°F70°F102°F 193859°F 19690%
Aug 2690°F70°F102°F 193859°F 19520%
Aug 2790°F69°F102°F 193859°F 19520%
Aug 2890°F69°F101°F 195457°F 19520%
Aug 2990°F69°F101°F 199060°F 19860%
Aug 3089°F69°F101°F 199056°F 19860%
Aug 3189°F69°F100°F 194858°F 19860%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Ashburn, in percent, and of at least 0.1 inch of snowfall.00.21102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EDT).

August 1
sunrise 6:51 AM, sunset 8:31 PM
August 31
sunrise 7:10 AM, sunset 8:00 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00090406 (Ashburn 3 Ene), public domain. Records: NOAA GHCN-Daily, station USC00092266, 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.