Knox County climate

Knox County Weather in August

NOAA 1991-2020 normals for Knoxville Exp Stn, 10.7 km from Knox County

Average highs run from 88°F on August 1 to 87°F on August 31, and lows from 66°F to 63°F. Normal precipitation for the month is 3.42 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 Knox County, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
88°F
Average low
65°F
Precipitation
3.42 in
Record high
102°FAug 17, 2007
Record low
48°FAug 29, 1968
Chance of a freeze
0%
Days of 90°F or more
10.9
Daylight
13 h 57 min to 12 h 58 min
Cloud cover
55%
Humidity
69%
Dew point
64°F
Wind
3.8 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 188°F66°F98°F 199553°F 199337%0%
Aug 288°F66°F96°F 199953°F 199337%0%
Aug 388°F66°F95°F 199556°F 199836%0%
Aug 488°F66°F96°F 201656°F 199836%0%
Aug 588°F66°F95°F 198156°F 199836%0%
Aug 688°F66°F95°F 200559°F 196936%0%
Aug 788°F66°F96°F 199152°F 200435%0%
Aug 888°F66°F96°F 196851°F 198935%0%
Aug 988°F66°F97°F 200752°F 198935%0%
Aug 1088°F66°F97°F 200755°F 198934%0%
Aug 1188°F65°F97°F 200656°F 198934%0%
Aug 1288°F65°F97°F 201054°F 198234%0%
Aug 1388°F65°F96°F 200755°F 197934%0%
Aug 1488°F65°F99°F 201056°F 200433%0%
Aug 1588°F65°F97°F 199556°F 200433%0%
Aug 1688°F65°F98°F 199552°F 197933%0%
Aug 1788°F65°F102°F 200753°F 197932%0%
Aug 1888°F65°F99°F 198857°F 197932%0%
Aug 1988°F65°F98°F 198860°F 198232%0%
Aug 2088°F65°F100°F 198357°F 199131%0%
Aug 2188°F64°F102°F 198350°F 198231%0%
Aug 2288°F64°F101°F 198354°F 198231%0%
Aug 2388°F64°F100°F 196852°F 199730%0%
Aug 2488°F64°F101°F 200751°F 199730%0%
Aug 2588°F64°F100°F 200755°F 198229%0%
Aug 2688°F64°F97°F 199555°F 196629%0%
Aug 2787°F64°F96°F 201654°F 196629%0%
Aug 2887°F63°F97°F 201650°F 196829%0%
Aug 2987°F63°F97°F 202448°F 196828%0%
Aug 3087°F63°F97°F 202451°F 196828%0%
Aug 3187°F63°F96°F 199551°F 199228%0%

Chance of rain

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

August 1
sunrise 6:43 AM, sunset 8:40 PM
August 31
sunrise 7:07 AM, sunset 8:05 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00404946 (Knoxville Exp Stn), public domain. Records: NOAA GHCN-Daily, station USC00404946, 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.