| Month | Average (°F) | Record (°F) | Average (inches) | |||
|---|---|---|---|---|---|---|
| High ☀️ | Low 🌙 | High ☀️ | Low 🌙 | Precipitation 💧 | Snow ❄️ | |
| January | 35.7 | 20.6 | 75 | -25 | 3.1 | 8.5 |
| February | 39.7 | 23.4 | 76 | -28 | 2.4 | 6.4 |
| March | 50.1 | 31.6 | 87 | -7 | 3.5 | 3.9 |
| April | 63.1 | 41.8 | 90 | 15 | 4.5 | 0.4 |
| May | 72.8 | 52.7 | 98 | 26 | 4.5 | 0.0 |
| June | 81.2 | 61.7 | 102 | 37 | 4.1 | 0.0 |
| July | 84.5 | 65.0 | 108 | 44 | 3.9 | 0.0 |
| August | 83.2 | 63.2 | 105 | 37 | 3.0 | 0.0 |
| September | 77.2 | 55.6 | 102 | 29 | 3.3 | 0.0 |
| October | 64.8 | 44.7 | 94 | 18 | 2.9 | 0.2 |
| November | 51.4 | 34.3 | 80 | -2 | 3.1 | 0.8 |
| December | 40.1 | 26.0 | 72 | -20 | 3.0 | 4.8 |
| Entire year | 62.1 | 43.5 | 108 | -28 | 41.3 | 24.6 |
|
More Dayton Weather Records
1893–2024
|
||
|---|---|---|
| Highest daily low | 82 °F | July 21, 1934 |
| Lowest daily high | -11 °F | January 20, 1985 |
| Greatest daily range (Difference of high and low) |
57 °F | December 14, 1901 |
| Greatest difference in daily high over two conscutive days |
56 °F | Dec 14–15, 1901 |
| Most daily precipitation | 4.2 inches | January 21, 1959 |
| Most monthly precipitation | 11.7 inches | January 1937 |
| Most yearly precipitation | 59.8 inches | 1990 |
| Most yearly days with precipitation | 165 | 1979 |
| Earliest snow in season | October 18 | 1989 |
| Latest snow in season | May 9 | 1923 |
| Most daily snow | 12.2 inches | January 26, 1978 |
| Most monthly snow | 40.2 inches | January 1978 |
| Most yearly snow | 52.9 inches | 1978 |
| Most snow in a winter | 62.7 inches | 1977–1978 |
| Greatest snow accumulation | 22.0 inches | January 21, 1978 |
| Earliest freeze | September 21 | 1897 |
| Earliest day ≥ 80 °F | March 19 | 2012 |
| Earliest day ≥ 90 °F | April 30 | 1942 |
| Earliest day ≥ 100 °F | June 11 | 1911 |
| Latest freeze | May 11 | 1913 |
| Latest day ≥ 80 °F | November 8 | 2020 |
| Latest day ≥ 90 °F | October 15 | 1899 |
| Latest day ≥ 100 °F | September 14 | 1897 |
| Most days in a year < 0 °F | 21 | 1977 |
| Most days in a year < 32 °F | 134 | 1904 |
| Most days in a year ≥ 80 °F | 137 | 1900 |
| Most days in a year ≥ 90 °F | 63 | 1921 |
| Most days in a year ≥ 100 °F | 10 | 1936 |
|
Dayton Weather Streaks
Most consecutive days...
|
||
|---|---|---|
| With precipitation | 14 days | May 28 – Jun 10, 1903 |
| Without precipitation | 40 days | Aug 19 – Sep 27, 1908 |
| With snow | 9 days | Dec 18–26, 1993 |
| High temperature at or below freezing |
34 days | Jan 8 – Feb 10, 1985 |
| High temperature ≥ 80 °F | 58 days | Jun 21 – Aug 17, 1944 |
| High temperature ≥ 90 °F | 22 days | Jun 29 – Jul 20, 1921 |
| High temperature ≥ 100 °F | 7 days | Jul 8–14, 1936 |