Union climate

Union Weather in August

NOAA 1991-2020 normals for Newton Exp Stn, 26.3 km from Union

Average highs run from 94°F on August 1 to 92°F on August 31, and lows from 69°F to 67°F. Normal precipitation for the month is 4.64 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, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
93°F
Average low
68°F
Precipitation
4.64 in
Record high
107°FAug 16, 2007
Record low
46°FAug 25, 1891
Chance of a freeze
0%
Days of 90°F or more
23.0
Daylight
13 h 43 min to 12 h 51 min
Cloud cover
50%
Humidity
73%
Dew point
70°F
Wind
3.1 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 194°F69°F102°F 192160°F 197135%0%
Aug 294°F69°F102°F 193761°F 191235%0%
Aug 394°F69°F104°F 201058°F 197635%0%
Aug 494°F69°F104°F 201054°F 200435%0%
Aug 594°F69°F102°F 194754°F 200435%0%
Aug 693°F69°F103°F 194753°F 191534%0%
Aug 793°F69°F104°F 193060°F 194834%0%
Aug 893°F69°F105°F 193059°F 198934%0%
Aug 993°F69°F102°F 193556°F 199034%0%
Aug 1093°F69°F102°F 195657°F 198933%0%
Aug 1193°F69°F104°F 200759°F 196733%0%
Aug 1293°F69°F104°F 195455°F 196733%0%
Aug 1393°F69°F103°F 195455°F 200432%0%
Aug 1493°F69°F104°F 200754°F 200432%0%
Aug 1593°F69°F105°F 200752°F 192932%0%
Aug 1693°F68°F107°F 200757°F 192931%0%
Aug 1793°F68°F103°F 195155°F 200431%0%
Aug 1893°F68°F103°F 190256°F 200431%0%
Aug 1993°F68°F102°F 190259°F 194330%0%
Aug 2093°F68°F102°F 195157°F 192730%0%
Aug 2193°F68°F101°F 195156°F 192730%0%
Aug 2293°F68°F101°F 200751°F 200429%0%
Aug 2393°F68°F104°F 200753°F 195629%0%
Aug 2493°F68°F100°F 192457°F 196629%0%
Aug 2592°F67°F101°F 194346°F 189128%0%
Aug 2692°F67°F104°F 194353°F 189128%0%
Aug 2792°F67°F107°F 194353°F 191728%0%
Aug 2892°F67°F104°F 194354°F 196827%0%
Aug 2992°F67°F104°F 195148°F 189127%0%
Aug 3092°F67°F106°F 195148°F 189127%0%
Aug 3192°F67°F105°F 195148°F 189127%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Union, 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 (CDT).

August 1
sunrise 6:11 AM, sunset 7:54 PM
August 31
sunrise 6:31 AM, sunset 7:22 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00226308 (Newton Exp Stn), public domain. Records: NOAA GHCN-Daily, station USC00225247, 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.