Dayton climate

Dayton Weather in August

NOAA 1991-2020 normals for Boone, 28.5 km from Dayton

Average highs run from 84°F on August 1 to 80°F on August 31, and lows from 63°F to 58°F. Normal precipitation for the month is 4.92 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.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
82°F
Average low
61°F
Precipitation
4.92 in
Record high
109°FAug 18, 1936
Record low
34°FAug 29, 1946
Chance of a freeze
0%
Days of 90°F or more
3.6
Daylight
14 h 26 min to 13 h 11 min
Cloud cover
51%
Humidity
71%
Dew point
61°F
Wind
8.5 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 184°F63°F99°F 198845°F 192035%0%
Aug 284°F63°F100°F 193044°F 191235%0%
Aug 384°F63°F107°F 193039°F 192735%0%
Aug 484°F62°F106°F 191644°F 202035%0%
Aug 583°F62°F104°F 191844°F 194835%0%
Aug 683°F62°F102°F 191647°F 195235%0%
Aug 783°F62°F102°F 189443°F 198935%0%
Aug 883°F62°F108°F 193446°F 192235%0%
Aug 983°F62°F100°F 193639°F 192735%0%
Aug 1083°F62°F100°F 194744°F 191735%0%
Aug 1183°F62°F102°F 191843°F 198235%0%
Aug 1283°F62°F103°F 193643°F 193135%0%
Aug 1383°F62°F99°F 196541°F 193334%0%
Aug 1483°F61°F102°F 198843°F 191434%0%
Aug 1583°F61°F105°F 198839°F 192934%0%
Aug 1682°F61°F104°F 198846°F 199234%0%
Aug 1782°F61°F105°F 198844°F 201234%0%
Aug 1882°F61°F109°F 193643°F 194334%0%
Aug 1982°F61°F100°F 194743°F 200434%0%
Aug 2082°F61°F101°F 194735°F 195033%0%
Aug 2182°F60°F101°F 194741°F 190833%0%
Aug 2282°F60°F100°F 194741°F 192333%0%
Aug 2381°F60°F102°F 194845°F 198433%0%
Aug 2481°F60°F104°F 193639°F 192833%0%
Aug 2581°F59°F100°F 193639°F 191533%0%
Aug 2681°F59°F99°F 195539°F 191033%0%
Aug 2781°F59°F101°F 195539°F 191632%0%
Aug 2881°F59°F98°F 194835°F 193532%0%
Aug 2981°F58°F97°F 201334°F 194632%0%
Aug 3080°F58°F99°F 195334°F 191532%0%
Aug 3180°F58°F97°F 195339°F 191532%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.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

August 1
sunrise 6:09 AM, sunset 8:35 PM
August 31
sunrise 6:41 AM, sunset 7:52 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00130807 (Boone), public domain. Records: NOAA GHCN-Daily, station USC00138806, 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.