Little Rock, AR weather in September
In September, Little Rock sees highs around 85°F and lows around 63°F: warm and often humid, with some rain. There are about 7 days with rain.
- Normal high
- 85°F
- Normal low
- 63°F
- Wet days
- 7
- 3.0 in total
- Muggy days
- 14
- dew point 65°F+
How September changes from start to finish
| September 1 | September 30 | |
|---|---|---|
| Normal high | 89°F | 80°F |
| Normal low | 68°F | 57°F |
| Chance of a wet day | 23% | 22% |
| Sunrise / sunset | 6:42 am / 7:36 pm | 7:03 am / 6:55 pm |
| Daylight | 12.9 h | 11.9 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Central Time).
A typical September day
- 6 am66°Fdew point 62°F
- 9 am75°Fdew point 63°F
- Noon82°Fdew point 63°F
- 3 pm84°Fdew point 62°F
- 6 pm79°Fdew point 63°F
- 9 pm72°Fdew point 64°F
NOAA hourly normals (local standard time) from Little Rock Airport Adams Fld (3 mi away); average wind 6 mph; clear or few clouds in 36% of daytime hours, mostly cloudy or overcast in 37%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F4 of 30
- Hot dayshigh 90°F or more11 of 30
- Muggy daysdaily mean dew point 65°F or more14 of 30
- Wet daysat least 0.01 in of rain or melted snow7 of 30
- Notable rainat least 0.10 in4 of 30
- Freezing nightslow 32°F or below0 of 30
- Snow on the groundsnow depth 1 in or more0 of 30
Average days per September, counted from daily records for each year 1991-2020.
Rain in September
Normal precipitation is 3.0 in; a dry September brings about 1.4 in and a wet one about 3.7 in (25th and 75th percentiles). About 2 days bring half an inch or more, and about 1 an inch or more.
How September varies from year to year
- Warmest September, 1991-20202019: average high 92°F
- Coolest September2009: average high 82°F
- Wettest September2008: 7.5 in
- Driest September2015: 0.1 in
- Highest reading104°F (September 3, 2000)
- Lowest reading44°F (September 26, 2001)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
September compared with August and October
| August | September | October | |
|---|---|---|---|
| Normal high | 92°F | 85°F | 74°F |
| Normal low | 70°F | 63°F | 51°F |
| Wet days | 7 | 7 | 8 |
| Comfortable days | 0 | 4 | 14 |
| Daylight | 13.4 h | 12.4 h | 11.3 h |
Highs change by -7°F from August and -11°F into October.
How Little Rock ranks in September
- Normal high135th warmest of 378 cities; 3rd of 4 in Arkansas
- Wet days129th driest of 378
- Comfortable days220th most of 342
What to pack for Little Rock in September
- Light, breathable clothing – highs near 85°F and about 14 muggy days
Heating and cooling
September has 11 heating degree days and 281 cooling degree days (base 65°F), 6% of the year's total heating and cooling demand.
Questions
How hot is Little Rock in September?
The normal high is 85°F and the normal low is 63°F. From 1991 to 2020 the hottest September reading was 104°F (most recently on September 3, 2000).
Does it rain a lot in Little Rock in September?
About 7 days in September have at least 0.01 in of precipitation, and the normal total is 3.0 in. The wettest September in 1991-2020 was in 2008 (7.5 in); the driest was in 2015 (0.1 in).
Is September a good time to visit Little Rock?
September ranks 7th of 12 months on our comfort score for Little Rock (48 out of 100). It has about 4 comfortable days and about 11 days at 90°F or hotter. The best month is April.
Where the numbers come from
- Temperature, rain, snow depth, frost dates, humidity and wind by hour and cloud cover: Little Rock Airport Adams Fld (USW00013963), 3.2 mi ESE of the city center, 258 ft (79 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Snowfall: Little Rock (USW00003952), 6.4 mi NNE of the city center, 568 ft (231 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Adams Field Airport (723403-13963), 3.3 mi ESE of the city center, 251 ft (86 ft lower than the city). Hourly observations, 1991-2020.