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Dayton, OH Weather on April 20
April 20th in Dayton, OH typically brings mild spring weather, with average highs around 68°F and lows near 48°F. Over 55 years of records, the warmest April 20th was in 1985 (73°F average), while the coldest was 1983 (34°F) — a 39°F range across recorded history. Rain or other precipitation has occurred on about 35% of April 20th dates historically, with the wettest April 20th recording 5.66" of rain. The last decade has been 5.1°F cooler on this date compared to 20-30 years ago.
What to Expect on April 20
Planning for April 20th in Dayton, OH? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
April 20 Weather Records for Dayton
- •The all-time record high for April 20th in Dayton, OH is 86°F, set in 2002.
- •The coldest April 20th on record dropped to 25°F in 1983.
- •A freeze (32°F or below) has occurred on April 20th in 3 of the last 55 years.
- •Last year (1971), April 20th was 8°F warmer than the long-term average.
Frequently Asked Questions
What was the warmest April 20 ever in Dayton?
The warmest April 20 in Dayton, OH reached 86°F in 2002. That is 18°F above the long-term average high of 68°F.
What was the coldest April 20 ever in Dayton?
The coldest April 20 in Dayton, OH dropped to 25°F in 1983. That is 23°F below the long-term average low of 48°F.
What is the average temperature on April 20 in Dayton?
On April 20, Dayton averages a high of 68°F and a low of 48°F based on 55 years of NOAA weather observations from DAYTON MCD.
How many years of weather data are available for April 20 in Dayton?
We have 55 years of weather records for April 20 in Dayton, OH, sourced from NOAA's Global Historical Climatology Network. Records include daily high and low temperatures, precipitation, and snowfall data going back to 2025.
April 20 Weather History in Dayton
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 73°F | 46°F | 0" | -- |
| 2024 | 53°F | 41°F | 0" | -- |
| 2023 | 83°F | 62°F | 0" | -- |
| 2022 | 62°F | 32°F | 0" | -- |
| 2021 | 73°F | 46°F | 0" | -- |
| 2020 | 60°F | 38°F | 0" | -- |
| 2019 | 49°F | 40°F | 0.36" | -- |
| 2018 | 56°F | 31°F | 0" | -- |
| 2017 | 80°F | 63°F | 0" | -- |
| 2016 | 80°F | 53°F | 0" | -- |
| 2015 | 68°F | 60°F | 2.54" | -- |
| 2014 | 68°F | 41°F | 0" | -- |
| 2013 | 47°F | 36°F | 0" | -- |
| 2012 | 79°F | 54°F | 0" | -- |
| 2011 | 75°F | 47°F | 5.66" | -- |
| 2010 | 65°F | 44°F | 0" | -- |
| 2009 | 65°F | 55°F | 0.99" | -- |
| 2008 | 66°F | 48°F | 0" | -- |
| 2007 | 59°F | 40°F | 0" | -- |
| 2006 | 78°F | 51°F | 0" | -- |
| 2005 | 80°F | 57°F | 0" | -- |
| 2004 | 74°F | 51°F | 0.1" | -- |
| 2003 | 82°F | 60°F | 0" | -- |
| 2002 | 86°F | 59°F | 0" | -- |
| 2001 | 66°F | 40°F | 1.42" | -- |
| 2000 | 67°F | 54°F | 0.08" | -- |
| 1999 | 64°F | 42°F | 0.08" | -- |
| 1998 | 51°F | 49°F | 0.2" | -- |
| 1997 | 64°F | 38°F | 0" | -- |
| 1996 | 79°F | 60°F | 2.95" | -- |
| 1995 | 63°F | 44°F | 0" | -- |
| 1994 | 76°F | 47°F | 0" | -- |
| 1993 | 68°F | 57°F | 0.3" | -- |
| 1992 | 81°F | 60°F | 0.43" | -- |
| 1991 | 58°F | 42°F | 1.12" | -- |
| 1990 | 67°F | 38°F | 0.08" | -- |
| 1989 | 57°F | 40°F | 0" | -- |
| 1988 | 53°F | 34°F | 0" | -- |
| 1987 | 80°F | 50°F | 0" | -- |
| 1986 | 74°F | 55°F | 0.61" | -- |
| 1985 | 86°F | 59°F | 0" | -- |
| 1984 | 49°F | 37°F | 0" | -- |
| 1983 | 43°F | 25°F | 0" | -- |
| 1982 | 74°F | 54°F | 0" | -- |
| 1981 | 57°F | 45°F | 0.56" | -- |
| 1980 | 73°F | 50°F | 0" | -- |
| 1979 | 65°F | 46°F | 0" | -- |
| 1978 | 61°F | 41°F | 1.45" | -- |
| 1977 | 80°F | 65°F | 0" | -- |
| 1976 | 83°F | 58°F | 0" | -- |
| 1975 | 57°F | 40°F | 0" | -- |
| 1974 | 62°F | 41°F | 0" | -- |
| 1973 | 72°F | 59°F | 0.03" | -- |
| 1972 | 69°F | 60°F | 0.84" | -- |
| 1971 | 76°F | 46°F | 0" | -- |
Based on 55 years of data from NOAA station: DAYTON MCD
Monthly Climate Averages
Historical temperature and precipitation averages for Dayton, OH, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.