Simpsonville climate

Simpsonville Weather in August

NOAA 1991-2020 normals for Shelbyville 1 E, 13.8 km from Simpsonville

Average highs run from 87°F on August 1 to 86°F on August 31, and lows from 61°F to 55°F. Normal precipitation for the month is 3.69 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 Simpsonville, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
87°F
Average low
58°F
Precipitation
3.69 in
Record high
103°FAug 16, 2007
Record low
48°FAug 27, 2025
Chance of a freeze
0%
Days of 90°F or more
9.8
Daylight
14 h 07 min to 13 h 02 min
Cloud cover
50%
Humidity
69%
Dew point
64°F
Wind
5.4 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°F61°F97°F 200258°F 202326%0%
Aug 287°F61°F97°F 200561°F 202126%0%
Aug 387°F61°F98°F 200259°F 200926%0%
Aug 487°F61°F101°F 201060°F 202126%0%
Aug 587°F61°F98°F 200255°F 201726%0%
Aug 687°F60°F97°F 200759°F 200426%0%
Aug 787°F60°F99°F 200754°F 200426%0%
Aug 887°F60°F101°F 200759°F 200426%0%
Aug 987°F60°F100°F 200758°F 201726%0%
Aug 1087°F60°F98°F 201059°F 202425%0%
Aug 1187°F60°F98°F 200559°F 200825%0%
Aug 1287°F59°F98°F 200556°F 201225%0%
Aug 1387°F59°F99°F 200557°F 200425%0%
Aug 1487°F59°F95°F 200753°F 200425%0%
Aug 1587°F59°F102°F 200753°F 200425%0%
Aug 1687°F59°F103°F 200755°F 200424%0%
Aug 1787°F58°F94°F 201757°F 200424%0%
Aug 1887°F58°F95°F 201959°F 200824%0%
Aug 1987°F58°F97°F 201956°F 202324%0%
Aug 2087°F58°F97°F 201956°F 201224%0%
Aug 2187°F58°F93°F 202351°F 202424%0%
Aug 2287°F57°F97°F 200250°F 202424%0%
Aug 2387°F57°F97°F 200753°F 202424%0%
Aug 2487°F57°F97°F 200758°F 200924%0%
Aug 2587°F57°F98°F 202354°F 202524%0%
Aug 2687°F56°F96°F 202151°F 202524%0%
Aug 2787°F56°F96°F 202448°F 202524%0%
Aug 2886°F56°F96°F 202452°F 202524%0%
Aug 2986°F56°F98°F 202456°F 202524%0%
Aug 3086°F55°F97°F 202450°F 202524%0%
Aug 3186°F55°F95°F 201352°F 202524%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Simpsonville, 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 (EDT).

August 1
sunrise 6:44 AM, sunset 8:51 PM
August 31
sunrise 7:10 AM, sunset 8:12 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00157324 (Shelbyville 1 E), public domain. Records: NOAA GHCN-Daily, station USW00013810, 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.