Climate averages 1991–2020
Columbus, United States weather
in September.
A hot, moderately wet month: the 4th warmest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Columbus, United States: daytime highs average 29.8°C and nights cool to about 20.1°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 86 mm of rain on roughly 8 days, which makes September a moderately wet month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 24 min on an average September day.
The nearest other city in this atlas is Montgomery (124 km away). In September its highs average 30.2°C, about as warm as Columbus, United States, with 78 mm of rain.
Among the 498 cities listed in the United States, Columbus, United States ranks joint 137th of 498 for the warmest September highs and joint 314th of 498 for the driest September (rainfall, lowest first). The mean September high of those 498 cities is 26.9°C; Columbus, United States is 2.9°C warmer than that mean.
From September to October, average highs fall by 5.1°C to 24.7°C, and monthly rainfall falls from 86 mm to 75 mm.
The annual picture
September 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
Columbus, United States climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 13.6°C3.8°C | 3.8°C | 108 | 9.8 | 10.310 h |
| February | 15.9°C5.3°C | 5.3°C | 111 | 9.2 | 11.011 h |
| March | 19.8°C8.4°C | 8.4°C | 107 | 9.7 | 12.012 h |
| April | 24.1°C12.1°C | 12.1°C | 83 | 7.9 | 13.013 h |
| May | 28.5°C17.0°C | 17.0°C | 67 | 8.3 | 13.814 h |
| June | 31.3°C21.1°C | 21.1°C | 89 | 13.0 | 14.214 h |
| July | 32.6°C22.9°C | 22.9°C | 112 | 15.4 | 14.114 h |
| August | 32.2°C22.6°C | 22.6°C | 96 | 13.7 | 13.313 h |
| September, selected | 29.8°C20.1°C | 20.1°C | 86 | 8.3 | 12.412 h |
| October | 24.7°C14.3°C | 14.3°C | 75 | 6.5 | 11.411 h |
| November | 19.0°C8.5°C | 8.5°C | 91 | 7.5 | 10.511 h |
| December | 14.8°C5.2°C | 5.2°C | 113 | 9.5 | 10.110 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
September in nearby cities
- Montgomery in SeptemberUnited States · 124 kmHigh 30.2°C · Low 20.4°C · 78 mm rain
- Albany (Georgia), United States in SeptemberUnited States · 126 kmHigh 30.4°C · Low 20.8°C · 92 mm rain
- Warner Robins in SeptemberUnited States · 129 kmHigh 29.2°C · Low 19.8°C · 99 mm rain
- South Fulton in SeptemberUnited States · 129 kmHigh 27.6°C · Low 18.7°C · 88 mm rain
- Macon in SeptemberUnited States · 134 kmHigh 29.3°C · Low 19.7°C · 91 mm rain
- Atlanta in SeptemberUnited States · 154 kmHigh 27.3°C · Low 18.1°C · 89 mm rain
- Sandy Springs in SeptemberUnited States · 172 kmHigh 27.2°C · Low 18.2°C · 92 mm rain
- Roswell in SeptemberUnited States · 183 kmHigh 27.1°C · Low 18.2°C · 91 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 Columbus) is explained once on the Columbus, United States year overview and on the Sources, method and limits page.