September weather in McCormick, SC
The average temperature in McCormick in September is 74.3°F (62.8°F–85.8°F). Average precipitation: 3.63 inches.
September is a fall month in McCormick, and is warmer than the annual average of 62.5°F. Daily temperatures swing about 23°F between overnight low and afternoon high. Daylight averages about 12h 12m. For travel, September is a comfortable month to visit.
Avg High
85.8°F
Avg Low
62.8°F
Precipitation
3.63 in
Daylight
12h 12m
September records in McCormick
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 96.1°F (2010) | 59.0°F (2025) | 0.80 in (2017) |
| September 2 | 98.1°F (2010) | 55.9°F (2025) | 0.79 in (2016) |
| September 3 | 100.9°F (2011) | 55.0°F (2025) | 1.25 in (2016) |
| September 4 | 99.0°F (2010) | 55.0°F (2017) | 0.52 in (2014) |
| September 5 | 95.0°F (2020) | 55.0°F (2017) | 0.42 in (2014) |
| September 6 | 93.0°F (2019) | 57.9°F (2010) | 0.42 in (2011) |
| September 7 | 96.1°F (2010) | 55.0°F (2017) | 0.07 in (2024) |
| September 8 | 95.0°F (2010) | 53.1°F (2017) | 0.28 in (2014) |
| September 9 | 98.1°F (2010) | 53.1°F (2017) | 0.50 in (2015) |
| September 10 | 97.0°F (2010) | 52.0°F (2025) | 0.61 in (2015) |
| September 11 | 95.0°F (2018) | 53.1°F (2025) | 0.32 in (2017) |
| September 12 | 93.9°F (2018) | 55.9°F (2012) | 2.60 in (2017) |
| September 13 | 96.1°F (2019) | 55.0°F (2015) | 0.68 in (2020) |
| September 14 | 96.1°F (2019) | 51.1°F (2015) | 0.24 in (2014) |
| September 15 | 96.1°F (2010) | 50.0°F (2015) | 0.05 in (2024) |
| September 16 | 97.0°F (2010) | 57.0°F (2025) | 0.92 in (2021) |
| September 17 | 96.1°F (2019) | 55.9°F (2011) | 1.97 in (2020) |
| September 18 | 98.1°F (2010) | 55.9°F (2011) | 1.72 in (2020) |
| September 19 | 96.1°F (2010) | 55.0°F (2023) | 0.37 in (2012) |
| September 20 | 97.0°F (2010) | 50.0°F (2020) | 0.14 in (2014) |
| September 21 | 99.0°F (2010) | 50.0°F (2020) | 0.47 in (2021) |
| September 22 | 99.0°F (2010) | 48.0°F (2020) | 0.65 in (2021) |
| September 23 | 98.1°F (2022) | 46.9°F (2020) | 1.66 in (2011) |
| September 24 | 96.1°F (2010) | 48.0°F (2022) | 0.01 in (2011) |
| September 25 | 95.0°F (2016) | 48.0°F (2022) | 2.48 in (2015) |
| September 26 | 93.9°F (2010) | 50.0°F (2021) | 2.05 in (2024) |
| September 27 | 97.0°F (2019) | 53.1°F (2012) | 6.25 in (2024) |
| September 28 | 98.1°F (2019) | 50.0°F (2022) | 2.04 in (2010) |
| September 29 | 93.9°F (2017) | 48.9°F (2022) | 0.17 in (2015) |
| September 30 | 97.0°F (2019) | 48.0°F (2009) | 1.22 in (2014) |