Climate averages 1991–2020
Springdale weather
in September.
A warm, wet month: the 4th warmest and the joint 7th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Springdale: daytime highs average 26.7°C and nights cool to about 17.3°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 97 mm of rain on roughly 8 days, which makes September a wet month (the joint 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 27 min on an average September day.
The nearest other city in this atlas is Fayetteville, United States (14 km away). In September its highs average 26.7°C, about as warm as Springdale, with 97 mm of rain.
Among the 498 cities listed in the United States, Springdale ranks joint 250th of 498 for the warmest September highs and joint 379th of 498 for the driest September (rainfall, lowest first). The mean September high of those 498 cities is 26.9°C; Springdale is 0.2°C cooler than that mean.
From September to October, average highs fall by 6.1°C to 20.6°C, and monthly rainfall stays at 97 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
Springdale climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.3°C-1.5°C | -1.5°C | 65 | 7.2 | 10.010 h |
| February | 9.9°C0.4°C | 0.4°C | 65 | 7.4 | 10.811 h |
| March | 14.7°C4.8°C | 4.8°C | 106 | 10.2 | 11.912 h |
| April | 19.5°C9.7°C | 9.7°C | 131 | 10.9 | 13.113 h |
| May | 23.9°C14.9°C | 14.9°C | 133 | 12.8 | 14.114 h |
| June | 28.6°C19.6°C | 19.6°C | 103 | 10.8 | 14.615 h |
| July | 31.2°C21.8°C | 21.8°C | 80 | 9.7 | 14.414 h |
| August | 30.8°C21.3°C | 21.3°C | 75 | 9.1 | 13.514 h |
| September, selected | 26.7°C17.3°C | 17.3°C | 97 | 7.7 | 12.412 h |
| October | 20.6°C11.4°C | 11.4°C | 97 | 8.5 | 11.311 h |
| November | 13.7°C5.3°C | 5.3°C | 85 | 8.0 | 10.310 h |
| December | 8.5°C0.4°C | 0.4°C | 70 | 7.5 | 9.710 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
- Fayetteville, United States in SeptemberUnited States · 14 kmHigh 26.7°C · Low 17.2°C · 97 mm rain
- Fort Smith in SeptemberUnited States · 92 kmHigh 28.9°C · Low 18.6°C · 93 mm rain
- Springfield (Missouri), United States in SeptemberUnited States · 136 kmHigh 26.2°C · Low 16.4°C · 98 mm rain
- Broken Arrow in SeptemberUnited States · 150 kmHigh 28.1°C · Low 19.0°C · 101 mm rain
- Tulsa in SeptemberUnited States · 167 kmHigh 28.3°C · Low 19.1°C · 101 mm rain
- Little Rock in SeptemberUnited States · 231 kmHigh 29.0°C · Low 19.5°C · 89 mm rain
- Lee's Summit in SeptemberUnited States · 304 kmHigh 25.3°C · Low 16.2°C · 93 mm rain
- Olathe in SeptemberUnited States · 306 kmHigh 25.4°C · Low 16.4°C · 93 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 Springdale) is explained once on the Springdale year overview and on the Sources, method and limits page.