Climate averages 1991–2020
Little Rock weather
in September.
A hot, moderately wet month: the 4th warmest and the joint 4th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Little Rock: daytime highs average 29.0°C and nights cool to about 19.5°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 89 mm of rain on roughly 7 days, which makes September a moderately wet month (the joint 4th 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 Jonesboro (189 km away). In September its highs average 27.9°C, 1.2°C cooler than Little Rock, with 79 mm of rain.
Among the 498 cities listed in the United States, Little Rock ranks joint 171st of 498 for the warmest September highs and joint 335th of 498 for the driest September (rainfall, lowest first). The mean September high of those 498 cities is 26.9°C; Little Rock is 2.1°C warmer than that mean.
From September to October, average highs fall by 5.8°C to 23.2°C, and monthly rainfall rises from 89 mm to 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
Little Rock climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 10.1°C1.3°C | 1.3°C | 89 | 9.0 | 10.110 h |
| February | 12.5°C3.1°C | 3.1°C | 95 | 9.3 | 10.911 h |
| March | 17.2°C7.3°C | 7.3°C | 122 | 11.1 | 11.912 h |
| April | 22.1°C12.0°C | 12.0°C | 128 | 9.7 | 13.013 h |
| May | 26.6°C17.1°C | 17.1°C | 138 | 12.2 | 14.014 h |
| June | 31.1°C21.6°C | 21.6°C | 78 | 9.4 | 14.414 h |
| July | 33.1°C23.7°C | 23.7°C | 85 | 10.4 | 14.214 h |
| August | 32.8°C23.3°C | 23.3°C | 70 | 8.7 | 13.513 h |
| September, selected | 29.0°C19.5°C | 19.5°C | 89 | 6.8 | 12.412 h |
| October | 23.2°C13.4°C | 13.4°C | 97 | 7.6 | 11.311 h |
| November | 16.2°C7.3°C | 7.3°C | 106 | 8.2 | 10.410 h |
| December | 11.3°C2.9°C | 2.9°C | 116 | 9.1 | 9.910 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
- Jonesboro in SeptemberUnited States · 189 kmHigh 27.9°C · Low 18.8°C · 79 mm rain
- Fort Smith in SeptemberUnited States · 205 kmHigh 28.9°C · Low 18.6°C · 93 mm rain
- Memphis in SeptemberUnited States · 209 kmHigh 28.7°C · Low 18.9°C · 74 mm rain
- Fayetteville, United States in SeptemberUnited States · 224 kmHigh 26.7°C · Low 17.2°C · 97 mm rain
- Springdale in SeptemberUnited States · 231 kmHigh 26.7°C · Low 17.3°C · 97 mm rain
- Shreveport in SeptemberUnited States · 282 kmHigh 30.8°C · Low 20.8°C · 78 mm rain
- Springfield (Missouri), United States in SeptemberUnited States · 289 kmHigh 26.2°C · Low 16.4°C · 98 mm rain
- Jackson in SeptemberUnited States · 335 kmHigh 30.4°C · Low 19.9°C · 83 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 Little Rock) is explained once on the Little Rock year overview and on the Sources, method and limits page.