Historical Weather in Dayton, OH
See 55+ years of weather history for any date in Dayton going back to 1970.
Part of Ohio weather history · Ohio temperature records
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Monthly Climate Averages
Historical temperature and precipitation averages for Dayton, OH, based on 55+ years of weather data.
Warmest MonthJulyAvg High: 86°F / Low: 66°F
Coldest MonthJanuaryAvg High: 36°F / Low: 21°F
Jan
36°/ 21°
💧 5.7"
❄️ 1.1"
Feb
40°/ 24°
💧 5.8"
❄️ 1.1"
Mar
51°/ 32°
💧 7.5"
❄️ 1.2"
Apr
64°/ 42°
💧 8.2"
❄️ 0.6"
May
74°/ 53°
💧 8.2"
Jun
82°/ 62°
💧 9.6"
Jul
86°/ 66°
💧 9.7"
Aug
84°/ 64°
💧 8.8"
Sep
78°/ 57°
💧 8.8"
Oct
65°/ 45°
💧 7.8"
❄️ 1.2"
Nov
52°/ 35°
💧 7.6"
❄️ 0.8"
Dec
41°/ 26°
💧 6.7"
❄️ 1.0"
Temperatures in Fahrenheit. Precipitation and snowfall in inches.
Dayton, OH Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Avg high Avg low
Dayton, OH Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Rain (in) Snow (in)
Dayton, OH Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
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Best Time to Visit Dayton, OH
Dayton, OH has no months that meet our "pleasant" threshold — every season has tradeoffs.
Jan
Feb
Mar
Apr
May
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Jul
Aug
Sep
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Dec
Pleasant (65-82°F, ≤2.5" rain) Mild Less ideal
Dayton Temperature Records
- Record High: The hottest temperature ever recorded in Dayton, OH is 105°F, set on July 7, 2012.
- Record Low: The coldest temperature ever recorded in Dayton, OH is -25°F, set on January 18, 1994.
- Data Coverage: Based on 52 years of data from NOAA weather station: DAYTON MCD.
All-Time Record High
105°F
July 7, 2012
All-Time Record Low
-25°F
January 18, 1994
Monthly Temperature Records in Dayton
| Month | Record High | Record Low |
|---|---|---|
| January | 70°F(2020) | -25°F(1994) |
| February | 78°F(1997) | -12°F(1977) |
| March | 88°F(2012) | -7°F(1980) |
| April | 90°F(1986) | 15°F(1972) |
| May | 97°F(2010) | 28°F(2020) |
| June | 103°F(1994) | 38°F(1988) |
| July | 105°F(2012) | 42°F(1972) |
| August | 103°F(1999) | 39°F(1986) |
| September | 99°F(2002) | 32°F(1983) |
| October | 98°F(2019) | 18°F(1976) |
| November | 83°F(2016) | 5°F(1976) |
| December | 75°F(1998) | -21°F(1989) |
Dayton Snow RecordsSee the top 10 snowiest days ever recorded
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Holiday Weather in Dayton
Weather Analysis & Trends
RecordsHottest Temperatures Ever Recorded in Every US StateAll 50 state record highs ranked, including Ohio.Severe WeatherTornado Season 2026: Forecasts & What to ExpectAn EF5 already, and the peak still ahead.Climate ForecastEl Niño 2026: What Every US Region Should Expect85% likely by late 2026. Region-by-region impact analysis.