September is one of the warmer months of the year in Jonesboro, with average highs near 29.2°C and lows around 16.7°C (mean 23°C). It is one of the drier months, averaging 79 mm of rainfall and 67% relative humidity across the period.
September is one of the warmer months of the year in Jonesboro. Across 45 years of records, the warmest Septembers in Jonesboro were 1998 and 2019 — when the month averaged 26.1°C — while the coldest was 2003 at 20.2°C. Typical September days reach 29.2°C with nights near 16.7°C. The long-term trend is warming, about 0.3°C per decade.
September is one of the drier months in Jonesboro, averaging 79 mm of rainfall. The wettest September on record was 2024 with 212 mm, while the driest was 2004 at 2 mm.
Relative humidity in Jonesboro during September averages 67%. The most humid September was 2020 at 82%, and the least humid was 1999 at 45%.
September receives about 4.9 kWh/m²/day of solar energy in Jonesboro. The sunniest September was 2016 at 5.5 kWh/m²/day, and the cloudiest was 2009 at 4.
Average wind speed in Jonesboro during September is 1.9 m/s. The windiest Septembers were 1984, 1985 and 2000 at 2.3 m/s, while the calmest was 2025 at 1.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 22.8°C | 22.5°C | 22.7°C | 23.7°C | 23.3°C | +0.5°C |
| Avg High | 29.1°C | 29.0°C | 28.9°C | 29.7°C | 29.4°C | +0.3°C |
| Avg Low | 16.4°C | 16.0°C | 16.6°C | 17.7°C | 17.2°C | +0.8°C |
| Avg Rain | 74 mm | 80 mm | 96 mm | 60 mm | 85 mm | +11 mm |
September temperatures in Jonesboro have risen by about 1.3°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 4.1°C (1995) to a record high of 39.5°C (2000).
Rainfall in September is one of the drier months, averaging 79 mm, with a wettest year of 212 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.2°C per decade while lows rose 0.4°C per decade, narrowing the gap between day and night.
One of the best times to visit Jonesboro
September is one of the best times to visit Jonesboro. Expect days averaging 29.2°C and nights around 16.7°C (mean 23°C) — warmer than Jonesboro's yearly average — with moderate rainfall (79 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 31.4°C | 24.8°C | 18.2°C | 36.5°C | 10.7°C | 89 mm | 64% | 1.3 m/s | 5.1 |
| 2024 🌧️ | 28.3°C | 22.9°C | 17.5°C | 34.3°C | 9.5°C | 212 mm | 70% | 2 m/s | 4.1 |
| 2023 | 30.6°C | 24.0°C | 17.4°C | 34.8°C | 12.2°C | 35 mm | 64% | 1.6 m/s | 5.2 |
| 2022 | 30.3°C | 23.4°C | 16.5°C | 38.2°C | 8.5°C | 20 mm | 63% | 1.8 m/s | 5.4 |
| 2021 | 29.4°C | 23.4°C | 17.4°C | 32.5°C | 9.7°C | 73 mm | 71% | 1.9 m/s | 5 |
| 2020 | 26.1°C | 21.1°C | 16.2°C | 30.5°C | 8.3°C | 81 mm | 82% | 1.9 m/s | 4.6 |
| 2019 | 32.0°C | 26.1°C | 20.2°C | 35.2°C | 17.1°C | 26 mm | 70% | 1.6 m/s | 5.3 |
| 2018 | 29.0°C | 24.1°C | 19.3°C | 35.4°C | 12.8°C | 136 mm | 77% | 1.8 m/s | 4.5 |
| 2017 | 30.2°C | 23.9°C | 17.5°C | 34.6°C | 11.6°C | 13 mm | 64% | 1.8 m/s | 5.3 |
| 2016 | 30.0°C | 24.4°C | 18.7°C | 34.2°C | 10.7°C | 56 mm | 73% | 1.7 m/s | 5.5 |
| 2015 | 30.0°C | 23.7°C | 17.5°C | 35.9°C | 10.0°C | 36 mm | 66% | 1.7 m/s | 5.1 |
| 2014 | 28.7°C | 22.7°C | 16.7°C | 34.5°C | 9.8°C | 50 mm | 68% | 1.9 m/s | 4.8 |
| 2013 | 30.2°C | 24.1°C | 17.9°C | 36.6°C | 10.2°C | 38 mm | 67% | 1.7 m/s | 5.1 |
| 2012 | 28.3°C | 22.5°C | 16.7°C | 36.9°C | 8.4°C | 105 mm | 71% | 2 m/s | 4.9 |
| 2011 | 28.3°C | 21.6°C | 14.9°C | 37.5°C | 8.3°C | 70 mm | 62% | 2 m/s | 5 |
| 2010 | 29.9°C | 23.5°C | 17.2°C | 34.9°C | 10.3°C | 70 mm | 64% | 2 m/s | 5.2 |
| 2009 | 26.3°C | 21.6°C | 17.0°C | 29.5°C | 8.4°C | 145 mm | 81% | 2 m/s | 4 |
| 2008 | 27.6°C | 22.0°C | 16.5°C | 34.4°C | 11.0°C | 110 mm | 75% | 2.2 m/s | 4.6 |
| 2007 | 30.1°C | 24.2°C | 18.4°C | 34.3°C | 12.0°C | 106 mm | 67% | 1.8 m/s | 4.5 |
| 2006 | 27.6°C | 21.1°C | 14.7°C | 33.9°C | 7.7°C | 156 mm | 69% | 2 m/s | 5 |
| 2005 | 31.7°C | 25.1°C | 18.6°C | 36.4°C | 7.4°C | 93 mm | 65% | 1.9 m/s | 5.3 |
| 2004 | 30.4°C | 23.3°C | 16.3°C | 33.8°C | 10.4°C | 2 mm | 59% | 2 m/s | 5.4 |
| 2003 ❄️ | 26.0°C | 20.2°C | 14.5°C | 30.9°C | 5.3°C | 97 mm | 74% | 1.8 m/s | 5.1 |
| 2002 | 29.4°C | 23.4°C | 17.3°C | 34.9°C | 8.1°C | 125 mm | 70% | 1.8 m/s | 4.8 |
| 2001 | 29.2°C | 22.3°C | 15.5°C | 35.5°C | 6.6°C | 71 mm | 61% | 2.1 m/s | 5.2 |
| 2000 | 31.0°C | 24.0°C | 17.0°C | 39.5°C | 5.8°C | 56 mm | 54% | 2.3 m/s | 4.9 |
| 1999 | 31.0°C | 23.5°C | 16.0°C | 38.2°C | 7.7°C | 25 mm | 45% | 1.9 m/s | 5.4 |
| 1998 🔥 | 32.9°C | 26.1°C | 19.2°C | 37.9°C | 11.8°C | 23 mm | 59% | 1.8 m/s | 5.1 |
| 1997 | 28.7°C | 22.3°C | 15.9°C | 34.3°C | 8.7°C | 68 mm | 68% | 1.9 m/s | 5 |
| 1996 | 27.9°C | 21.7°C | 15.5°C | 35.1°C | 7.3°C | 151 mm | 67% | 1.9 m/s | 4.9 |
| 1995 | 28.0°C | 21.3°C | 14.6°C | 34.2°C | 4.1°C | 75 mm | 63% | 1.8 m/s | 4.6 |
| 1994 | 28.2°C | 21.1°C | 14.0°C | 33.8°C | 7.0°C | 60 mm | 66% | 1.7 m/s | 5.1 |
| 1993 | 27.6°C | 21.1°C | 14.7°C | 34.9°C | 7.8°C | 164 mm | 71% | 2.1 m/s | 4.5 |
| 1992 | 27.5°C | 21.4°C | 15.4°C | 32.9°C | 5.7°C | 82 mm | 73% | 2 m/s | 4.3 |
| 1991 | 26.8°C | 21.7°C | 16.5°C | 32.7°C | 5.3°C | 65 mm | 74% | 1.6 m/s | 5 |
| 1990 | 31.2°C | 24.9°C | 18.6°C | 38.9°C | 6.5°C | 84 mm | 64% | 1.6 m/s | 4.7 |
| 1989 | 26.6°C | 21.0°C | 15.5°C | 34.5°C | 4.5°C | 96 mm | 76% | 2 m/s | 4.3 |
| 1988 | 28.9°C | 22.8°C | 16.8°C | 34.3°C | 8.5°C | 187 mm | 72% | 1.9 m/s | 4.5 |
| 1987 | 30.8°C | 24.0°C | 17.1°C | 35.3°C | 11.3°C | 60 mm | 58% | 1.6 m/s | 4.9 |
| 1986 | 31.2°C | 25.3°C | 19.4°C | 34.6°C | 13.6°C | 53 mm | 65% | 2.2 m/s | 4.8 |
| 1985 | 28.2°C | 21.9°C | 15.6°C | 34.1°C | 5.5°C | 65 mm | 68% | 2.3 m/s | 4.8 |
| 1984 | 27.5°C | 21.3°C | 15.0°C | 36.2°C | 6.2°C | 125 mm | 66% | 2.3 m/s | 4.9 |
| 1983 | 30.9°C | 23.9°C | 16.9°C | 36.2°C | 5.3°C | 32 mm | 57% | 2 m/s | — |
| 1982 | 28.8°C | 22.3°C | 15.9°C | 34.7°C | 6.7°C | 41 mm | 68% | 1.9 m/s | — |
| 1981 | 29.4°C | 22.4°C | 15.3°C | 33.7°C | 7.4°C | 11 mm | 59% | 1.9 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 29.2°C with lows near 16.7°C (mean 23°C), based on 45 years of NASA POWER data.
September averages 79 mm of rainfall in Jonesboro, one of the drier months. The wettest on record was 212 mm in 2024.
The hottest September reached 39.5°C in 2000. The coldest dipped to 4.1°C in 1995.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 1.3°C. Daytime highs moved from 29°C to 30°C and overnight lows from 15.7°C to 17.4°C over the same span.
September is one of the warmer months of the year in Jonesboro and one of the drier months, so plan for around 29.2°C daytime highs and 16.7°C at night.
Not quite — September is the 9th coolest month in Jonesboro, averaging 23°C.
For September in Jonesboro, pack light layers you can adjust through the day, with typical highs of 29.2°C and lows of 16.7°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 67% — moderately humid.
Average wind speed in September is 1.9 m/s. The windiest September on record averaged 2.3 m/s (1984).
The wettest September on record was 2024 with 212 mm. On average, September sees 79 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Jonesboro behaves each September, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for September specifically, along with year-by-year records and how the month has changed over the decades.
