Union County climate

Union County Weather in August

NOAA 1991-2020 normals for Monroe 2 Se, 1.2 km from Union County

Average highs run from 91°F on August 1 to 87°F on August 31, and lows from 69°F to 66°F. Normal precipitation for the month is 4.89 in over about 10 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 Union County, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
89°F
Average low
68°F
Precipitation
4.89 in
Record high
105°FAug 9, 2007
Record low
54°FAug 8, 2004
Chance of a freeze
0%
Days of 90°F or more
14.1
Daylight
13 h 53 min to 12 h 56 min
Cloud cover
56%
Humidity
71%
Dew point
67°F
Wind
3.8 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°F69°F99°F 199961°F 201734%0%
Aug 290°F69°F99°F 200662°F 200134%0%
Aug 390°F69°F100°F 200660°F 200134%0%
Aug 490°F69°F100°F 200664°F 199934%0%
Aug 590°F69°F99°F 201564°F 199934%0%
Aug 690°F69°F102°F 200860°F 200434%0%
Aug 790°F69°F100°F 200757°F 200434%0%
Aug 890°F69°F103°F 200754°F 200433%0%
Aug 990°F69°F105°F 200757°F 200233%0%
Aug 1090°F69°F104°F 200759°F 200233%0%
Aug 1190°F69°F97°F 199961°F 200233%0%
Aug 1289°F69°F97°F 199961°F 200833%0%
Aug 1389°F69°F99°F 199961°F 200033%0%
Aug 1489°F68°F97°F 202358°F 200032%0%
Aug 1589°F68°F99°F 200761°F 200032%0%
Aug 1689°F68°F101°F 200761°F 201332%0%
Aug 1789°F68°F99°F 199963°F 200431%0%
Aug 1889°F68°F99°F 199964°F 200831%0%
Aug 1989°F68°F96°F 200763°F 200830%0%
Aug 2089°F68°F100°F 200764°F 200030%0%
Aug 2188°F68°F102°F 200760°F 202429%0%
Aug 2288°F67°F100°F 200757°F 202429%0%
Aug 2388°F67°F100°F 200256°F 200028%0%
Aug 2488°F67°F101°F 200255°F 201828%0%
Aug 2588°F67°F97°F 200759°F 201227%0%
Aug 2688°F67°F97°F 201656°F 201327%0%
Aug 2788°F67°F96°F 201661°F 202527%0%
Aug 2887°F66°F95°F 201860°F 201726%0%
Aug 2987°F66°F96°F 200661°F 202526%0%
Aug 3087°F66°F97°F 201858°F 199926%0%
Aug 3187°F66°F95°F 201458°F 199925%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Union County, 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 6:32 AM, sunset 8:25 PM
August 31
sunrise 6:54 AM, sunset 7:50 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00315771 (Monroe 2 Se), public domain. Records: NOAA GHCN-Daily, station USW00053872, 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.