Updated October 2026
Dayton Aviation Heritage National Historical Park Weather by Month
Dayton Aviation Heritage National Historical Park is warmest in July, when the nearest NOAA climate station averages a high of 87°F and a low of 66°F, and coldest in January, with an average high of 36°F and an average low of 20°F. April is the wettest month, with about 4.5 inches of precipitation. Snowfall is heaviest in January, at about 6.9 inches.
These figures are NOAA's 1991–2020 climate normals, the 30-year average for each calendar month, from the nearest long-record weather station, 4.6 miles from the park's reference point. A single station cannot describe a whole park: temperatures elsewhere in Dayton Aviation Heritage National Historical Park can differ from these, particularly with elevation.
Warmest month
Jul
87°F avg high
Coldest month
Jan
20°F avg low
Wettest month
Apr
4.5 in avg
Snowiest month
Jan
6.9 in avg
Longest days
Jun
14.8 h of daylight
Average weather at Dayton Aviation Heritage by month
| Month | Avg high | Avg low | Precipitation | Snowfall | Daylight |
|---|---|---|---|---|---|
| January | 36°F | 20°F | 3.2 in | 6.9 in | 9.5 h |
| February | 40°F | 23°F | 2.4 in | 1.5 in | 10.5 h |
| March | 51°F | 31°F | 3.5 in | 1.7 in | 11.7 h |
| April | 64°F | 41°F | 4.5 in | 0.0 in | 13.1 h |
| May | 75°F | 53°F | 4.4 in | 0.0 in | 14.2 h |
| June | 84°F | 62°F | 4.4 in | 0.0 in | 14.8 h |
| July | 87°F | 66°F | 4.0 in | 0.0 in | 14.6 h |
| August | 86°F | 64°F | 3.1 in | 0.0 in | 13.6 h |
| September | 79°F | 56°F | 3.0 in | 0.0 in | 12.2 h |
| October | 66°F | 44°F | 3.0 in | 0.0 in | 10.9 h |
| November | 52°F | 33°F | 3.0 in | 0.1 in | 9.8 h |
| December | 41°F | 26°F | 3.1 in | 2.1 in | 9.2 h |
| Year total | 41.6 in | 12.3 in |
NOAA 1991–2020 climate normals from station USC00332067, 4.6 miles from the park's reference point. Daylight is the monthly average, computed from the park's latitude. Each month links to how crowded Dayton Aviation Heritage is at that time of year.
Dayton Aviation Heritage weather by season
Winter: December to February
Average highs bottom out at 36°F in January, between 41°F in December and 40°F in February, with average lows between 20°F and 26°F. The average low is at or below freezing in all three months. Together the three months average 8.7 inches of precipitation, about 21% of the yearly total and less than in any other season. Snowfall averages about 11 inches for the season, most of it in January. Daylight is at its shortest, about 9.2 hours in December.
Spring: March to May
Average highs climb from 51°F in March to 75°F in May, with average lows between 31°F and 53°F. The average low is at or below freezing in March. Together the three months average 12.4 inches of precipitation, about 30% of the yearly total and more than in any other season. Snowfall averages about 1.7 inches for the season, most of it in March. Daylight lengthens from about 11.7 hours in March to 14.2 in May.
Summer: June to August
Average highs peak at 87°F in July, between 84°F in June and 86°F in August, with average lows between 62°F and 66°F. Together the three months average 11.5 inches of precipitation, about 28% of the yearly total. Daylight is at its longest, about 14.8 hours in June.
Fall: September to November
Average highs fall from 79°F in September to 52°F in November, with average lows between 33°F and 56°F. Together the three months average 9 inches of precipitation, about 22% of the yearly total. Snowfall averages about 0.1 inches for the season. Daylight shortens from about 12.2 hours in September to 9.8 in November.
What the National Park Service says about the weather
The park lies in a humid continental zone with a generally temperate climate. Winters are mildly cold with average temperatures around 39 degrees (F). Summers are hot and humid with an average temperature around 74 degrees (F). Average annual total rainfall is just above 41". Snowfall in the winter is generally light with an average total snowfall of about 25".
Weather description courtesy of the National Park Service — official park site.
Today's forecast for Dayton Aviation Heritage
Averages describe a typical month, not this week. For current conditions and the seven-day outlook, the National Weather Service issues a forecast for the park's reference point at 39.79°N, 84.10°W. It covers that one spot, so other elevations in the park can differ from it, as they do from the averages above.
National Weather Service forecast for Dayton Aviation Heritage National Historical Park →
Weather and crowds together
July, the warmest month, sees about 1.4× the visitors of the park's average month. May is the busiest month of the year and January the quietest. To see those crowds set against the weather for all twelve months, read the best time to visit Dayton Aviation Heritage National Historical Park. For hotels, cabins and rentals close to the park, see where to stay near Dayton Aviation Heritage.
Where to stay near Dayton Aviation Heritage
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Top-rated places to stay near Dayton Aviation Heritage
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Frequently Asked Questions
July is the warmest month at Dayton Aviation Heritage National Historical Park, with an average high of 87°F and an average low of 66°F. That is the 1991–2020 average at the nearest long-record NOAA station, 4.6 miles from the park's reference point. Temperatures inside the park can differ, particularly with elevation.
January is the coldest month at Dayton Aviation Heritage National Historical Park, with an average low of 20°F and an average high of 36°F, based on NOAA 1991–2020 climate normals.
April is the wettest month, with about 4.5 inches of precipitation. February is the driest, at about 2.4 inches. The station records about 41.6 inches of precipitation in an average year.
Yes. The nearest long-record NOAA station, 4.6 miles from the park's reference point, averages about 12 inches of snow a year. January is the snowiest month, at about 6.9 inches. The station averages at least a tenth of an inch of snow in 5 of the 12 months.
Weather at nearby parks
13 mi away · warmest in July (83°F)
51 mi away · warmest in July (87°F)
64 mi away · warmest in July (85°F)
140 mi away · warmest in July (86°F)
146 mi away · warmest in July (82°F)
Keep exploring
Sources: NOAA NCEI U.S. Climate Normals 1991–2020 (station USC00332067), daylight computed from latitude, weather description from the National Park Service, crowd levels from National Park Service Visitor Use Statistics (1996–2025). Updated 2026-10-11. Lodging results are provided by Stay22; WhenToVisitParks may earn a commission from bookings, at no extra cost to you.