Greenville climate

Greenville Weather in August

NOAA 1991-2020 normals for Vandalia, 28.4 km from Greenville

Average highs run from 87°F on August 1 to 84°F on August 31, and lows from 66°F to 62°F. Normal precipitation for the month is 3.24 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 Greenville, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
86°F
Average low
64°F
Precipitation
3.24 in
Record high
112°FAug 4, 1918
Record low
39°FAug 29, 1986
Chance of a freeze
0%
Days of 90°F or more
9.0
Daylight
14 h 10 min to 13 h 03 min
Cloud cover
47%
Humidity
72%
Dew point
65°F
Wind
7.2 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°F66°F102°F 191348°F 191825%0%
Aug 286°F66°F105°F 198749°F 192025%0%
Aug 386°F66°F108°F 193048°F 192025%0%
Aug 486°F66°F112°F 191848°F 191225%0%
Aug 586°F66°F108°F 191849°F 191225%0%
Aug 686°F66°F105°F 193051°F 194825%0%
Aug 786°F66°F105°F 193049°F 197525%0%
Aug 886°F66°F109°F 193050°F 198925%0%
Aug 986°F65°F108°F 193049°F 192224%0%
Aug 1086°F65°F105°F 191852°F 191924%0%
Aug 1186°F65°F105°F 191850°F 191724%0%
Aug 1286°F65°F106°F 191846°F 196724%0%
Aug 1386°F65°F103°F 193645°F 196424%0%
Aug 1486°F65°F102°F 193647°F 192424%0%
Aug 1586°F65°F104°F 193645°F 196224%0%
Aug 1686°F65°F105°F 198847°F 192924%0%
Aug 1786°F65°F105°F 198850°F 192924%0%
Aug 1886°F65°F106°F 193650°F 196324%0%
Aug 1986°F64°F105°F 193650°F 197724%0%
Aug 2086°F64°F103°F 193647°F 195024%0%
Aug 2186°F64°F105°F 193642°F 195024%0%
Aug 2286°F64°F104°F 193647°F 195024%0%
Aug 2386°F64°F103°F 193645°F 192323%0%
Aug 2486°F63°F102°F 194346°F 192023%0%
Aug 2585°F63°F100°F 193645°F 191723%0%
Aug 2685°F63°F103°F 193648°F 191023%0%
Aug 2785°F63°F99°F 195548°F 191023%0%
Aug 2885°F63°F101°F 199042°F 198623%0%
Aug 2985°F62°F100°F 191339°F 198623%0%
Aug 3085°F62°F99°F 192540°F 198623%0%
Aug 3184°F62°F99°F 194342°F 191523%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Greenville, 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 5:59 AM, sunset 8:09 PM
August 31
sunrise 6:26 AM, sunset 7:29 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00118781 (Vandalia), public domain. Records: NOAA GHCN-Daily, station USC00114108, 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.