Dayton climate

Dayton Weather in August

NOAA 1991-2020 normals for Lafayette 8 S, 14.3 km from Dayton

Average highs run from 83°F on August 1 to 81°F on August 31, and lows from 64°F to 60°F. Normal precipitation for the month is 3.68 in over about 9 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
62°F
Precipitation
3.68 in
Record high
100°FAug 20, 1983
Record low
37°FAug 29, 1965
Chance of a freeze
0%
Days of 90°F or more
3.5
Daylight
14 h 17 min to 13 h 06 min
Cloud cover
50%
Humidity
75%
Dew point
63°F
Wind
7.4 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 183°F64°F95°F 194449°F 199229%0%
Aug 283°F63°F98°F 196450°F 196529%0%
Aug 383°F63°F99°F 196448°F 196529%0%
Aug 483°F63°F98°F 201248°F 196629%0%
Aug 583°F63°F96°F 198350°F 196629%0%
Aug 683°F63°F94°F 200748°F 199729%0%
Aug 783°F63°F98°F 200749°F 200429%0%
Aug 883°F63°F97°F 198350°F 201729%0%
Aug 983°F63°F95°F 194450°F 197228%0%
Aug 1083°F63°F97°F 194444°F 197228%0%
Aug 1183°F63°F95°F 194447°F 196528%0%
Aug 1283°F63°F98°F 200746°F 196728%0%
Aug 1383°F63°F97°F 199542°F 196428%0%
Aug 1483°F63°F96°F 199540°F 196428%0%
Aug 1583°F63°F97°F 198843°F 196428%0%
Aug 1683°F62°F97°F 198846°F 197928%0%
Aug 1783°F62°F98°F 198851°F 197628%0%
Aug 1882°F62°F97°F 198849°F 201227%0%
Aug 1982°F62°F99°F 198349°F 194427%0%
Aug 2082°F62°F100°F 198349°F 199227%0%
Aug 2182°F62°F98°F 198350°F 201527%0%
Aug 2282°F62°F94°F 200747°F 202427%0%
Aug 2382°F61°F94°F 200748°F 199727%0%
Aug 2482°F61°F95°F 202046°F 196627%0%
Aug 2582°F61°F95°F 198347°F 196627%0%
Aug 2682°F61°F95°F 200348°F 194526%0%
Aug 2782°F61°F96°F 202444°F 196826%0%
Aug 2882°F61°F94°F 197343°F 196526%0%
Aug 2982°F60°F95°F 199537°F 196526%0%
Aug 3082°F60°F94°F 194542°F 198626%0%
Aug 3181°F60°F94°F 199545°F 200926%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.01020301102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EDT).

August 1
sunrise 6:45 AM, sunset 9:02 PM
August 31
sunrise 7:14 AM, sunset 8:20 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00124715 (Lafayette 8 S), public domain. Records: NOAA GHCN-Daily, station USW00014835, 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.