Williston climate

Williston Weather in August

NOAA 1991-2020 normals for Williston Sloulin Intl AP, 3.3 km from Williston

Average highs run from 87°F on August 1 to 79°F on August 31, and lows from 57°F to 49°F. Normal precipitation for the month is 1.57 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 Williston, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
84°F
Average low
54°F
Precipitation
1.57 in
Record high
106°FAug 6, 1988
Record low
35°FAug 11, 1964
Chance of a freeze
0%
Days of 90°F or more
8.5
Daylight
15 h 00 min to 13 h 26 min
Cloud cover
50%
Humidity
52%
Dew point
50°F
Wind
10.1 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°F57°F103°F 198943°F 200929%0%
Aug 287°F57°F102°F 198940°F 197829%0%
Aug 387°F57°F102°F 198337°F 197829%0%
Aug 486°F57°F102°F 198344°F 197229%0%
Aug 586°F57°F102°F 196441°F 197729%0%
Aug 686°F57°F106°F 198846°F 202028%0%
Aug 786°F56°F105°F 198846°F 196428%0%
Aug 886°F56°F104°F 195842°F 196628%0%
Aug 986°F56°F99°F 195841°F 196828%0%
Aug 1086°F56°F98°F 199839°F 196628%0%
Aug 1186°F56°F102°F 201835°F 196428%0%
Aug 1285°F55°F106°F 201838°F 196427%0%
Aug 1385°F55°F103°F 201539°F 197727%0%
Aug 1485°F55°F103°F 201540°F 197727%0%
Aug 1585°F55°F102°F 200340°F 202027%0%
Aug 1684°F54°F101°F 200341°F 197527%0%
Aug 1784°F54°F101°F 200338°F 200227%0%
Aug 1884°F54°F102°F 202043°F 198526%0%
Aug 1984°F54°F101°F 202040°F 197826%0%
Aug 2083°F53°F98°F 202036°F 195626%0%
Aug 2183°F53°F98°F 196943°F 196426%0%
Aug 2283°F53°F102°F 196939°F 196626%0%
Aug 2382°F52°F104°F 197641°F 195726%0%
Aug 2482°F52°F102°F 197640°F 201526%0%
Aug 2582°F52°F99°F 196937°F 196426%0%
Aug 2681°F51°F97°F 195839°F 199226%0%
Aug 2781°F51°F99°F 199135°F 198226%0%
Aug 2881°F51°F101°F 197138°F 197625%0%
Aug 2980°F50°F100°F 201238°F 196225%0%
Aug 3080°F50°F99°F 197339°F 199225%0%
Aug 3179°F49°F100°F 198336°F 199425%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.01020301102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

August 1
sunrise 6:30 AM, sunset 9:30 PM
August 31
sunrise 7:11 AM, sunset 8:37 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00094014 (Williston Sloulin Intl AP), public domain. Records: NOAA GHCN-Daily, station USC00329430, 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.