Dayton May Weather

Averages and records for weather in Dayton, Ohio in the month of May.
Typical Dayton May Weather
1991–2020
Average daily high 72.8 °F
Average daily low 52.7 °F
Average monthly precipitation 4.5 inches
Average monthly snow none
Daily chance of precipitation 45.4%
Daily chance of snow 0%
Dayton May Weather Records
1893–2024
Highest temperature 98 °F May 29, 1911
Lowest temperature 26 °F May 1, 1963
Highest daily low 73 °F May 30, 1991
Lowest daily high 41 °F May 10, 1960
Hottest average high temperature 82.5 °F 1896
Coldest average high temperature 65.4 °F 1997
Most daily precipitation 3.2 inches May 23, 1989
Most monthly precipitation 9.1 inches 1938
Most daily snow 1.2 inches May 9, 1923
Most monthly snow 1.2 inches 1923
Note: Daily averages are a moving average which includes 14 days before and after
Day Average (°F) Record (°F)
High Low High Low
May 1 68.0 47.3 88 26
May 2 68.2 47.6 88 31
May 3 68.4 47.9 90 32
May 4 68.5 48.1 88 28
May 5 68.7 48.4 90 30
May 6 69.1 48.7 89 31
May 7 69.4 49.0 87 28
May 8 69.8 49.4 88 32
May 9 70.1 49.8 92 28
May 10 70.5 50.1 94 29
May 11 70.8 50.5 94 28
May 12 71.3 51.0 88 34
May 13 71.7 51.5 88 33
May 14 72.1 52.0 89 35
May 15 72.4 52.3 92 32
May 16 72.7 52.6 94 32
May 17 73.1 53.0 93 33
May 18 73.4 53.3 93 35
May 19 73.8 53.6 92 33
May 20 74.0 53.9 91 37
May 21 74.2 54.2 92 32
May 22 74.4 54.4 92 34
May 23 74.6 54.6 93 34
May 24 74.8 54.8 90 39
May 25 75.0 55.1 93 39
May 26 75.3 55.4 95 37
May 27 75.7 55.8 95 33
May 28 76.1 56.3 98 33
May 29 76.5 56.7 98 35
May 30 76.8 57.1 95 37
May 31 77.1 57.4 97 36
Weather Station Details
Years Station Coordinates
1948–2024 Dayton International Airport location
1893–1947 Dayton location