Williston climate

Williston Weather in August

NOAA 1991-2020 normals for Blackville 3 W, 10.1 km from Williston

Average highs run from 90°F on August 1 to 87°F on August 31, and lows from 71°F to 68°F. Normal precipitation for the month is 5.13 in over about 11 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 Williston, in °F, with the record for each date.5060708090100110151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
89°F
Average low
70°F
Precipitation
5.13 in
Record high
101°FAug 10, 2007
Record low
57°FAug 7, 2004
Chance of a freeze
0%
Days of 90°F or more
15.0
Daylight
13 h 47 min to 12 h 53 min
Cloud cover
57%
Humidity
72%
Dew point
69°F
Wind
6.3 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°F71°F97°F 202259°F 201739%0%
Aug 290°F71°F96°F 202060°F 201739%0%
Aug 390°F71°F101°F 201166°F 202539%0%
Aug 490°F71°F99°F 201166°F 202039%0%
Aug 590°F71°F97°F 200865°F 202139%0%
Aug 690°F71°F99°F 200266°F 202538%0%
Aug 790°F71°F98°F 200757°F 200438%0%
Aug 890°F71°F98°F 200758°F 200238%0%
Aug 990°F71°F100°F 201959°F 200238%0%
Aug 1089°F70°F101°F 200759°F 200238%0%
Aug 1189°F70°F96°F 200760°F 200237%0%
Aug 1289°F70°F95°F 200263°F 200237%0%
Aug 1389°F70°F98°F 201961°F 200637%0%
Aug 1489°F70°F100°F 201958°F 200637%0%
Aug 1589°F70°F96°F 202362°F 201336%0%
Aug 1689°F70°F96°F 201958°F 200636%0%
Aug 1789°F70°F97°F 202665°F 201336%0%
Aug 1889°F70°F97°F 200265°F 202336%0%
Aug 1989°F70°F95°F 202666°F 202036%0%
Aug 2089°F70°F96°F 200569°F 200335%0%
Aug 2188°F70°F98°F 201465°F 202435%0%
Aug 2288°F70°F100°F 200763°F 202435%0%
Aug 2388°F70°F99°F 201459°F 202434%0%
Aug 2488°F69°F98°F 200261°F 200934%0%
Aug 2588°F69°F94°F 202361°F 201234%0%
Aug 2688°F69°F99°F 202361°F 201333%0%
Aug 2788°F69°F97°F 202360°F 201333%0%
Aug 2888°F69°F94°F 201660°F 201433%0%
Aug 2988°F69°F95°F 202463°F 202532%0%
Aug 3087°F69°F94°F 200960°F 201932%0%
Aug 3187°F68°F96°F 201463°F 201032%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Williston, 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 (EDT).

August 1
sunrise 6:38 AM, sunset 8:25 PM
August 31
sunrise 6:59 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 USW00063826 (Blackville 3 W), public domain. Records: NOAA GHCN-Daily, station USW00063826, 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.