Climate averages 1991–2020
Fort Wayne weather
in September.
A warm, moderately wet month: the 4th warmest and the 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Fort Wayne: daytime highs average 23.4°C and nights cool to about 13.9°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 67 mm of rain on roughly 9 days, which makes September a moderately wet month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 31 min on an average September day.
The nearest other city in this atlas is Muncie (106 km away). In September its highs average 23.9°C, 0.5°C warmer than Fort Wayne, with 67 mm of rain.
Among the 498 cities listed in the United States, Fort Wayne ranks joint 387th of 498 for the warmest September highs and joint 193rd of 498 for the driest September (rainfall, lowest first). The mean September high of those 498 cities is 26.9°C; Fort Wayne is 3.5°C cooler than that mean.
From September to October, average highs fall by 6.7°C to 16.7°C, and monthly rainfall rises from 67 mm to 74 mm.
The annual picture
September in context
Monthly precipitation
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
Fort Wayne climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 0.3°C-7.4°C | -7.4°C | 69 | 10.1 | 9.610 h |
| February | 2.5°C-6.3°C | -6.3°C | 58 | 8.4 | 10.611 h |
| March | 8.4°C-1.6°C | -1.6°C | 80 | 10.8 | 11.912 h |
| April | 15.2°C4.4°C | 4.4°C | 101 | 12.4 | 13.313 h |
| May | 21.0°C10.8°C | 10.8°C | 103 | 13.2 | 14.514 h |
| June | 25.8°C16.2°C | 16.2°C | 106 | 12.1 | 15.115 h |
| July | 27.8°C18.4°C | 18.4°C | 91 | 11.2 | 14.815 h |
| August | 26.9°C17.7°C | 17.7°C | 88 | 10.1 | 13.814 h |
| September, selected | 23.4°C13.9°C | 13.9°C | 67 | 8.5 | 12.513 h |
| October | 16.7°C7.8°C | 7.8°C | 74 | 9.4 | 11.111 h |
| November | 9.3°C1.5°C | 1.5°C | 77 | 9.3 | 9.910 h |
| December | 2.9°C-3.9°C | -3.9°C | 64 | 9.7 | 9.39 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet 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
September in nearby cities
- Muncie in SeptemberUnited States · 106 kmHigh 23.9°C · Low 14.4°C · 67 mm rain
- South Bend in SeptemberUnited States · 112 kmHigh 23.1°C · Low 13.9°C · 83 mm rain
- Kalamazoo in SeptemberUnited States · 135 kmHigh 22.4°C · Low 13.6°C · 79 mm rain
- Toledo, United States in SeptemberUnited States · 144 kmHigh 23.2°C · Low 14.5°C · 63 mm rain
- Fishers in SeptemberUnited States · 151 kmHigh 24.4°C · Low 14.8°C · 69 mm rain
- Carmel in SeptemberUnited States · 153 kmHigh 24.2°C · Low 14.8°C · 69 mm rain
- Lafayette (Indiana), United States in SeptemberUnited States · 167 kmHigh 24.5°C · Low 14.7°C · 68 mm rain
- Ann Arbor in SeptemberUnited States · 172 kmHigh 22.3°C · Low 13.3°C · 69 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 Fort Wayne) is explained once on the Fort Wayne year overview and on the Sources, method and limits page.