Dayton climate

Dayton Weather in August

NOAA 1991-2020 normals for Dayton 2SE, 2.8 km from Dayton

Average highs run from 88°F on August 1 to 86°F on August 31, and lows from 67°F to 64°F. Normal precipitation for the month is 3.88 in over about 11 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 Dayton, 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
66°F
Precipitation
3.88 in
Record high
104°FAug 10, 1980
Record low
49°FAug 13, 1964
Chance of a freeze
0%
Days of 90°F or more
10.7
Daylight
13 h 55 min to 12 h 56 min
Cloud cover
53%
Humidity
69%
Dew point
65°F
Wind
3.1 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°F98°F 198055°F 197440%0%
Aug 288°F67°F97°F 198059°F 196640%0%
Aug 388°F67°F100°F 195755°F 196540%0%
Aug 488°F67°F100°F 201154°F 196540%0%
Aug 588°F67°F98°F 200654°F 197439%0%
Aug 688°F67°F99°F 198056°F 197439%0%
Aug 788°F67°F102°F 198056°F 196739%0%
Aug 888°F67°F103°F 198052°F 198938%0%
Aug 988°F67°F103°F 198053°F 198938%0%
Aug 1088°F67°F104°F 198055°F 197638%0%
Aug 1188°F67°F100°F 195756°F 196737%0%
Aug 1288°F66°F98°F 195756°F 201237%0%
Aug 1388°F66°F96°F 195749°F 196436%0%
Aug 1488°F66°F102°F 198052°F 196736%0%
Aug 1588°F66°F96°F 198052°F 196336%0%
Aug 1688°F66°F100°F 198054°F 196335%0%
Aug 1788°F66°F100°F 200752°F 197935%0%
Aug 1888°F66°F100°F 200057°F 195835%0%
Aug 1988°F66°F99°F 196856°F 197734%0%
Aug 2087°F66°F99°F 198353°F 197634%0%
Aug 2187°F66°F101°F 198355°F 199134%0%
Aug 2287°F66°F102°F 196855°F 198233%0%
Aug 2387°F65°F100°F 196855°F 197333%0%
Aug 2487°F65°F102°F 196855°F 196933%0%
Aug 2587°F65°F99°F 196855°F 196432%0%
Aug 2687°F65°F98°F 201153°F 196632%0%
Aug 2787°F65°F97°F 198751°F 202532%0%
Aug 2887°F65°F96°F 202451°F 202532%0%
Aug 2987°F65°F97°F 202451°F 196832%0%
Aug 3086°F64°F98°F 202449°F 196532%0%
Aug 3186°F64°F98°F 195749°F 196831%0%

Chance of rain

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

August 1
sunrise 6:49 AM, sunset 8:44 PM
August 31
sunrise 7:12 AM, sunset 8:08 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00402360 (Dayton 2SE), public domain. Records: NOAA GHCN-Daily, station USC00402360, 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.