Harrison climate

Harrison Weather in August

NOAA 1991-2020 normals for Carbondale Southern Il AP, 7.9 km from Harrison

Average highs run from 88°F on August 1 to 85°F on August 31, and lows from 67°F to 61°F. Normal precipitation for the month is 3.05 in over about 12 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 Harrison, 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
65°F
Precipitation
3.05 in
Record high
104°FAug 4, 2010
Record low
45°FAug 26, 2025
Chance of a freeze
0%
Days of 90°F or more
10.7
Daylight
14 h 05 min to 13 h 01 min
Cloud cover
47%
Humidity
71%
Dew point
66°F
Wind
6.5 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°F67°F99°F 201259°F 201440%0%
Aug 288°F67°F98°F 200257°F 202140%0%
Aug 388°F67°F103°F 201055°F 202540%0%
Aug 488°F67°F104°F 201054°F 202140%0%
Aug 588°F67°F101°F 200250°F 201740%0%
Aug 688°F67°F96°F 200756°F 199940%0%
Aug 788°F67°F97°F 200753°F 200440%0%
Aug 888°F66°F99°F 200754°F 200240%0%
Aug 988°F66°F101°F 200754°F 200239%0%
Aug 1088°F66°F100°F 201056°F 202439%0%
Aug 1188°F66°F101°F 201055°F 201239%0%
Aug 1288°F66°F101°F 201052°F 200439%0%
Aug 1388°F66°F99°F 201049°F 200439%0%
Aug 1488°F66°F98°F 200748°F 200439%0%
Aug 1588°F65°F102°F 200751°F 199939%0%
Aug 1688°F65°F103°F 200749°F 200439%0%
Aug 1787°F65°F100°F 200354°F 200839%0%
Aug 1887°F65°F96°F 200652°F 201238%0%
Aug 1987°F65°F98°F 202552°F 200838%0%
Aug 2087°F64°F95°F 201054°F 201238%0%
Aug 2187°F64°F95°F 200351°F 199938%0%
Aug 2287°F64°F97°F 200347°F 202438%0%
Aug 2387°F64°F98°F 200751°F 201838%0%
Aug 2486°F63°F98°F 200752°F 201738%0%
Aug 2586°F63°F99°F 202349°F 202537%0%
Aug 2686°F63°F96°F 200345°F 202537%0%
Aug 2786°F63°F98°F 202446°F 202537%0%
Aug 2886°F62°F99°F 200751°F 202537%0%
Aug 2986°F62°F98°F 202452°F 202537%0%
Aug 3085°F62°F96°F 201253°F 199937%0%
Aug 3185°F61°F97°F 202649°F 199937%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Harrison, in percent, and of at least 0.1 inch of snowfall.010203040501102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

August 1
sunrise 6:01 AM, sunset 8:06 PM
August 31
sunrise 6:27 AM, sunset 7:28 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00093810 (Carbondale Southern Il AP), public domain. Records: NOAA GHCN-Daily, station USW00093810, 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.