Union County climate

Union County Weather in August

NOAA 1991-2020 normals for Calion L&d, 18.4 km from Union County

Average highs run from 93°F on August 1 to 91°F on August 31, and lows from 71°F to 68°F. Normal precipitation for the month is 3.45 in over about 7 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
93°F
Average low
70°F
Precipitation
3.45 in
Record high
112°FAug 10, 1936
Record low
50°FAug 14, 1967
Chance of a freeze
0%
Days of 90°F or more
21.8
Daylight
13 h 45 min to 12 h 53 min
Cloud cover
45%
Humidity
66%
Dew point
69°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 193°F71°F103°F 200857°F 193622%0%
Aug 293°F71°F106°F 200859°F 196522%0%
Aug 393°F71°F108°F 201155°F 192021%0%
Aug 493°F71°F108°F 201155°F 192021%0%
Aug 593°F71°F105°F 191856°F 191221%0%
Aug 693°F71°F105°F 195658°F 194821%0%
Aug 793°F71°F106°F 194760°F 196121%0%
Aug 893°F71°F107°F 193456°F 199021%0%
Aug 993°F71°F108°F 193656°F 198921%0%
Aug 1093°F71°F112°F 193656°F 198921%0%
Aug 1193°F70°F107°F 193558°F 196721%0%
Aug 1293°F70°F105°F 193653°F 196721%0%
Aug 1393°F70°F105°F 193453°F 196721%0%
Aug 1493°F70°F105°F 194850°F 196721%0%
Aug 1593°F70°F107°F 194856°F 200421%0%
Aug 1693°F70°F106°F 200054°F 196321%0%
Aug 1793°F70°F106°F 200053°F 199221%0%
Aug 1893°F70°F108°F 200056°F 199221%0%
Aug 1993°F70°F108°F 199960°F 192921%0%
Aug 2092°F69°F105°F 193458°F 194021%0%
Aug 2192°F69°F105°F 193656°F 194021%0%
Aug 2292°F69°F107°F 202656°F 195621%0%
Aug 2392°F69°F103°F 192451°F 195621%0%
Aug 2492°F69°F103°F 192157°F 200921%0%
Aug 2592°F69°F103°F 200058°F 196621%0%
Aug 2692°F69°F106°F 200056°F 196621%0%
Aug 2792°F68°F106°F 200052°F 191721%0%
Aug 2891°F68°F105°F 200050°F 190621%0%
Aug 2991°F68°F107°F 200051°F 198621%0%
Aug 3091°F68°F110°F 200051°F 198621%0%
Aug 3191°F68°F112°F 200054°F 191521%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.05101520251102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

August 1
sunrise 6:24 AM, sunset 8:09 PM
August 31
sunrise 6:44 AM, sunset 7:37 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00031140 (Calion L&d), public domain. Records: NOAA GHCN-Daily, station USW00093992, 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.