September weather in Jamestown, SC
The average temperature in Jamestown in September is 75.5°F (64.9°F–86.1°F). Average precipitation: 5.28 inches.
September is a fall month in Jamestown, and is warmer than the annual average of 64.6°F. Daily temperatures swing about 21.2°F between overnight low and afternoon high. Daylight averages about 12h 12m. For travel, September is a wet month.
Avg High
86.1°F
Avg Low
64.9°F
Precipitation
5.28 in
Daylight
12h 12m
September records in Jamestown
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 96.1°F (2014) | 59.0°F (2025) | 1.75 in (2015) |
| September 2 | 96.1°F (2014) | 59.0°F (2025) | 1.82 in (2024) |
| September 3 | 98.1°F (2020) | 57.9°F (2025) | 2.10 in (2016) |
| September 4 | 96.1°F (2020) | 55.9°F (2023) | 0.22 in (2013) |
| September 5 | 97.0°F (2020) | 59.0°F (2021) | 3.00 in (2019) |
| September 6 | 93.9°F (2013) | 60.1°F (2016) | 3.00 in (2019) |
| September 7 | 93.9°F (2018) | 60.1°F (2016) | 0.78 in (2011) |
| September 8 | 97.0°F (2019) | 55.9°F (2017) | 0.62 in (2024) |
| September 9 | 96.1°F (2019) | 55.9°F (2017) | 1.48 in (2020) |
| September 10 | 97.0°F (2019) | 57.0°F (2024) | 1.33 in (2021) |
| September 11 | 95.0°F (2019) | 57.0°F (2012) | 0.60 in (2015) |
| September 12 | 93.9°F (2016) | 54.0°F (2012) | 5.50 in (2017) |
| September 13 | 93.9°F (2014) | 55.0°F (2012) | 0.65 in (2016) |
| September 14 | 91.9°F (2013) | 54.0°F (2015) | 0.52 in (2014) |
| September 15 | 91.9°F (2011) | 51.1°F (2015) | 3.50 in (2018) |
| September 16 | 90.0°F (2012) | 51.1°F (2015) | 1.73 in (2014) |
| September 17 | 90.0°F (2012) | 57.9°F (2011) | 0.91 in (2020) |
| September 18 | 93.9°F (2019) | 57.9°F (2011) | 0.63 in (2014) |
| September 19 | 93.9°F (2018) | 57.9°F (2013) | 0.60 in (2012) |
| September 20 | 93.0°F (2018) | 57.9°F (2013) | 0.84 in (2016) |
| September 21 | 93.0°F (2015) | 55.0°F (2019) | 0.50 in (2021) |
| September 22 | 93.9°F (2022) | 53.1°F (2020) | 1.10 in (2016) |
| September 23 | 90.0°F (2018) | 51.1°F (2020) | 2.25 in (2014) |
| September 24 | 90.0°F (2018) | 50.0°F (2022) | 1.43 in (2016) |
| September 25 | 95.0°F (2025) | 48.9°F (2012) | 2.11 in (2015) |
| September 26 | 93.9°F (2025) | 48.9°F (2012) | 0.43 in (2013) |
| September 27 | 93.0°F (2019) | 54.0°F (2012) | 3.28 in (2024) |
| September 28 | 93.0°F (2019) | 55.9°F (2013) | 0.93 in (2025) |
| September 29 | 95.0°F (2017) | 57.0°F (2013) | 4.30 in (2020) |
| September 30 | 95.0°F (2019) | 48.9°F (2013) | 4.04 in (2022) |