Johnson County climate

Johnson County Weather in August

NOAA 1991-2020 normals for Clarksville 6 Ne, 6.6 km from Johnson County

Average highs run from 91°F on August 1 to 87°F on August 31, and lows from 72°F to 68°F. Normal precipitation for the month is 3.82 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 Johnson County, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
90°F
Average low
70°F
Precipitation
3.82 in
Record high
115°FAug 3, 2011
Record low
51°FAug 13, 2004
Chance of a freeze
0%
Days of 90°F or more
16.2
Daylight
13 h 56 min to 12 h 57 min
Cloud cover
47%
Humidity
64%
Dew point
65°F
Wind
3.6 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°F72°F108°F 201160°F 201824%0%
Aug 291°F71°F110°F 201163°F 201824%0%
Aug 391°F71°F115°F 201162°F 202524%0%
Aug 491°F71°F106°F 201262°F 201424%0%
Aug 591°F71°F106°F 201163°F 201424%0%
Aug 691°F71°F110°F 201160°F 200424%0%
Aug 791°F71°F105°F 201157°F 200424%0%
Aug 891°F71°F104°F 201156°F 200424%0%
Aug 991°F71°F103°F 201058°F 200224%0%
Aug 1091°F71°F103°F 200664°F 200424%0%
Aug 1191°F71°F105°F 200758°F 200424%0%
Aug 1291°F71°F107°F 200756°F 200424%0%
Aug 1391°F71°F107°F 200751°F 200424%0%
Aug 1491°F71°F106°F 201052°F 200424%0%
Aug 1590°F71°F106°F 200757°F 201324%0%
Aug 1690°F71°F105°F 200756°F 199924%0%
Aug 1790°F70°F106°F 202558°F 199924%0%
Aug 1890°F70°F106°F 202561°F 199924%0%
Aug 1990°F70°F106°F 202562°F 201324%0%
Aug 2090°F70°F105°F 202358°F 201524%0%
Aug 2190°F70°F103°F 201060°F 199924%0%
Aug 2289°F70°F102°F 200060°F 199923%0%
Aug 2389°F70°F103°F 200057°F 200923%0%
Aug 2489°F69°F103°F 200757°F 200923%0%
Aug 2589°F69°F104°F 202356°F 201523%0%
Aug 2689°F69°F105°F 200058°F 201023%0%
Aug 2788°F69°F105°F 200057°F 201023%0%
Aug 2888°F69°F106°F 200059°F 201023%0%
Aug 2988°F68°F106°F 200062°F 200623%0%
Aug 3088°F68°F107°F 200060°F 200623%0%
Aug 3187°F68°F109°F 200054°F 200923%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Johnson 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 6:22 AM, sunset 8:18 PM
August 31
sunrise 6:45 AM, sunset 7:42 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00031457 (Clarksville 6 Ne), public domain. Records: NOAA GHCN-Daily, station USW00053920, 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.