Climate averages 1991–2020
Asheville weather
in September.
A warm, wet month: the 4th warmest and the joint 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Asheville: daytime highs average 24.2°C and nights cool to about 14.8°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 95 mm of rain on roughly 10 days, which makes September a wet month (the joint 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 26 min on an average September day.
The nearest other city in this atlas is Gastonia (129 km away). In September its highs average 26.9°C, 2.7°C warmer than Asheville, with 97 mm of rain.
Among the 498 cities listed in the United States, Asheville ranks joint 342nd of 498 for the warmest September highs and joint 371st of 498 for the driest September (rainfall, lowest first). The mean September high of those 498 cities is 26.9°C; Asheville is 2.7°C cooler than that mean.
From September to October, average highs fall by 5.3°C to 18.9°C, and monthly rainfall falls from 95 mm to 79 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
Asheville climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.1°C-2.6°C | -2.6°C | 96 | 10.1 | 10.010 h |
| February | 9.3°C-1.0°C | -1.0°C | 84 | 9.4 | 10.911 h |
| March | 13.3°C2.4°C | 2.4°C | 106 | 11.2 | 11.912 h |
| April | 18.6°C6.9°C | 6.9°C | 93 | 10.1 | 13.113 h |
| May | 22.3°C11.7°C | 11.7°C | 90 | 11.5 | 14.014 h |
| June | 26.0°C16.1°C | 16.1°C | 95 | 14.0 | 14.515 h |
| July | 27.8°C18.1°C | 18.1°C | 99 | 15.6 | 14.314 h |
| August | 27.1°C17.7°C | 17.7°C | 105 | 14.3 | 13.514 h |
| September, selected | 24.2°C14.8°C | 14.8°C | 95 | 9.6 | 12.412 h |
| October | 18.9°C8.5°C | 8.5°C | 79 | 7.4 | 11.311 h |
| November | 13.0°C2.7°C | 2.7°C | 85 | 8.0 | 10.310 h |
| December | 8.6°C-0.7°C | -0.7°C | 89 | 8.9 | 9.810 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
- Gastonia in SeptemberUnited States · 129 kmHigh 26.9°C · Low 18.0°C · 97 mm rain
- Knoxville in SeptemberUnited States · 130 kmHigh 26.7°C · Low 16.8°C · 90 mm rain
- Rock Hill in SeptemberUnited States · 158 kmHigh 27.4°C · Low 18.4°C · 93 mm rain
- Charlotte in SeptemberUnited States · 161 kmHigh 27.1°C · Low 17.7°C · 98 mm rain
- Concord (North Carolina), United States in SeptemberUnited States · 180 kmHigh 27.2°C · Low 18.1°C · 103 mm rain
- Athens, United States in SeptemberUnited States · 197 kmHigh 27.9°C · Low 18.6°C · 92 mm rain
- Winston-Salem in SeptemberUnited States · 215 kmHigh 26.4°C · Low 17.0°C · 101 mm rain
- Columbia (South Carolina), United States in SeptemberUnited States · 226 kmHigh 28.3°C · Low 19.0°C · 94 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 Asheville) is explained once on the Asheville year overview and on the Sources, method and limits page.