Climate averages 1991–2020
Greenville weather
in September.
A warm, wet month: the 4th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Greenville: daytime highs average 27.0°C and nights cool to about 19.0°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 132 mm of rain on roughly 12 days, which makes September a wet month (the 10th 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 Raleigh (116 km away). In September its highs average 26.9°C, about as warm as Greenville, with 120 mm of rain.
Among the 498 cities listed in the United States, Greenville ranks joint 242nd of 498 for the warmest September highs and 463rd of 498 for the driest September (rainfall, lowest first). The mean September high of those 498 cities is 26.9°C; Greenville is 0.1°C warmer than that mean.
From September to October, average highs fall by 4.9°C to 22.1°C, and monthly rainfall falls from 132 mm to 90 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
Greenville climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 10.9°C1.9°C | 1.9°C | 94 | 9.1 | 10.010 h |
| February | 12.8°C2.8°C | 2.8°C | 79 | 9.1 | 10.911 h |
| March | 16.6°C6.0°C | 6.0°C | 93 | 9.8 | 11.912 h |
| April | 21.7°C10.9°C | 10.9°C | 80 | 8.6 | 13.113 h |
| May | 25.7°C15.7°C | 15.7°C | 94 | 10.6 | 14.014 h |
| June | 29.2°C20.2°C | 20.2°C | 113 | 13.6 | 14.515 h |
| July | 30.9°C22.6°C | 22.6°C | 136 | 16.9 | 14.314 h |
| August | 29.9°C21.7°C | 21.7°C | 137 | 14.4 | 13.514 h |
| September, selected | 27.0°C19.0°C | 19.0°C | 132 | 11.5 | 12.412 h |
| October | 22.1°C13.0°C | 13.0°C | 90 | 7.4 | 11.311 h |
| November | 16.7°C7.3°C | 7.3°C | 90 | 7.7 | 10.310 h |
| December | 12.6°C3.7°C | 3.7°C | 90 | 9.2 | 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
- Raleigh in SeptemberUnited States · 116 kmHigh 26.9°C · Low 18.4°C · 120 mm rain
- Cary in SeptemberUnited States · 129 kmHigh 26.6°C · Low 18.2°C · 120 mm rain
- Suffolk in SeptemberUnited States · 143 kmHigh 26.6°C · Low 18.8°C · 123 mm rain
- Durham in SeptemberUnited States · 145 kmHigh 26.9°C · Low 17.9°C · 112 mm rain
- Fayetteville in SeptemberUnited States · 151 kmHigh 27.6°C · Low 19.0°C · 128 mm rain
- Portsmouth Heights in SeptemberUnited States · 161 kmHigh 26.4°C · Low 18.8°C · 120 mm rain
- Wilmington (North Carolina), United States in SeptemberUnited States · 162 kmHigh 26.8°C · Low 21.1°C · 166 mm rain
- Norfolk in SeptemberUnited States · 168 kmHigh 26.1°C · Low 19.1°C · 120 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 Greenville) is explained once on the Greenville year overview and on the Sources, method and limits page.