Climate averages 1991–2020
Dayton weather
in October.
A mild, moderately wet month: the 6th warmest and the 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
October is a mild month in Dayton: daytime highs average 17.6°C and nights cool to about 9.0°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 74 mm of rain on roughly 8 days, which makes October a moderately wet month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 11 min on an average October day.
The nearest other city in this atlas is Cincinnati (76 km away). In October its highs average 18.4°C, 0.8°C warmer than Dayton, with 75 mm of rain.
Among the 498 cities listed in the United States, Dayton ranks joint 336th of 498 for the warmest October highs and joint 230th of 498 for the driest October (rainfall, lowest first). The mean October high of those 498 cities is 21.4°C; Dayton is 3.7°C cooler than that mean.
From October to November, average highs fall by 7.2°C to 10.4°C, and monthly rainfall rises from 74 mm to 82 mm.
The annual picture
October in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Dayton climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 2.3°C-5.5°C | -5.5°C | 82 | 9.8 | 9.710 h |
| February | 4.6°C-4.1°C | -4.1°C | 70 | 9.3 | 10.711 h |
| March | 10.0°C0.4°C | 0.4°C | 100 | 11.1 | 11.912 h |
| April | 16.8°C6.4°C | 6.4°C | 116 | 12.7 | 13.213 h |
| May | 22.0°C12.3°C | 12.3°C | 116 | 13.3 | 14.314 h |
| June | 26.5°C17.4°C | 17.4°C | 106 | 12.6 | 14.915 h |
| July | 28.4°C19.5°C | 19.5°C | 86 | 11.6 | 14.715 h |
| August | 27.9°C18.9°C | 18.9°C | 81 | 10.0 | 13.714 h |
| September | 24.4°C15.3°C | 15.3°C | 68 | 7.8 | 12.512 h |
| October, selected | 17.6°C9.0°C | 9.0°C | 74 | 8.4 | 11.211 h |
| November | 10.4°C2.8°C | 2.8°C | 82 | 8.9 | 10.010 h |
| December | 4.6°C-2.3°C | -2.3°C | 85 | 9.7 | 9.49 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
October in nearby cities
- Cincinnati in OctoberUnited States · 76 kmHigh 18.4°C · Low 8.9°C · 75 mm rain
- Columbus in OctoberUnited States · 104 kmHigh 17.5°C · Low 8.3°C · 74 mm rain
- Muncie in OctoberUnited States · 113 kmHigh 17.2°C · Low 8.2°C · 80 mm rain
- Fishers in OctoberUnited States · 157 kmHigh 17.6°C · Low 8.6°C · 83 mm rain
- Carmel in OctoberUnited States · 166 kmHigh 17.5°C · Low 8.6°C · 83 mm rain
- Indianapolis in OctoberUnited States · 168 kmHigh 17.7°C · Low 8.9°C · 83 mm rain
- Fort Wayne in OctoberUnited States · 172 kmHigh 16.7°C · Low 7.8°C · 74 mm rain
- Meads in OctoberUnited States · 197 kmHigh 19.8°C · Low 10.2°C · 80 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Dayton) is explained once on the Dayton year overview and on the Sources, method and limits page.