October weather in Harrisburg, PA
The average temperature in Harrisburg in October is 53.1°F (43.1°F–63.1°F). Average precipitation: 3.77 inches.
October is a fall month in Harrisburg, and is warmer than the annual average of 51.9°F. Daily temperatures swing about 20°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 10h 54m. For travel, October is a comfortable month to visit.
Avg High
63.1°F
Avg Low
43.1°F
Precipitation
3.77 in
Daylight
10h 54m
October records in Harrisburg
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| October 1 | 80.1°F (2025) | 37.9°F (2000) | 2.43 in (2010) |
| October 2 | 82.9°F (2019) | 39.9°F (2011) | 1.00 in (2022) |
| October 3 | 90.0°F (2019) | 34.0°F (2003) | 0.89 in (2015) |
| October 4 | 82.0°F (2002) | 33.1°F (2004) | 0.68 in (2002) |
| October 5 | 84.0°F (2013) | 33.1°F (2020) | 0.37 in (2010) |
| October 6 | 84.9°F (2013) | 28.0°F (2020) | 0.37 in (2006) |
| October 7 | 84.0°F (2013) | 35.1°F (2003) | 0.32 in (2010) |
| October 8 | 82.9°F (2007) | 34.0°F (2001) | 3.73 in (2005) |
| October 9 | 87.1°F (2007) | 27.0°F (2001) | 0.85 in (2005) |
| October 10 | 87.1°F (2007) | 27.0°F (2001) | 0.69 in (2017) |
| October 11 | 81.0°F (2018) | 36.0°F (2016) | 6.05 in (2013) |
| October 12 | 81.0°F (2018) | 36.0°F (2012) | 1.78 in (2013) |
| October 13 | 75.0°F (2015) | 28.9°F (2012) | 0.45 in (2011) |
| October 14 | 79.0°F (2024) | 28.9°F (2012) | 1.10 in (2011) |
| October 15 | 75.9°F (2008) | 28.9°F (2006) | 1.34 in (2003) |
| October 16 | 80.1°F (2021) | 33.1°F (2006) | 1.07 in (2009) |
| October 17 | 73.9°F (2008) | 33.1°F (2006) | 1.16 in (2019) |
| October 18 | 75.9°F (2016) | 33.1°F (2006) | 0.98 in (2006) |
| October 19 | 80.1°F (2016) | 28.0°F (2015) | 1.20 in (2012) |
| October 20 | 81.0°F (2016) | 27.0°F (2015) | 0.88 in (2007) |
| October 21 | 77.0°F (2016) | 28.9°F (2022) | 0.29 in (2019) |
| October 22 | 78.1°F (2024) | 30.9°F (2022) | 0.66 in (2005) |
| October 23 | 81.0°F (2024) | 30.9°F (2008) | 0.63 in (2005) |
| October 24 | 77.0°F (2024) | 28.9°F (2008) | 0.83 in (2009) |
| October 25 | 79.0°F (2001) | 34.0°F (2003) | 0.74 in (2007) |
| October 26 | 72.0°F (2021) | 23.0°F (2006) | 1.77 in (2008) |
| October 27 | 75.0°F (2023) | 30.0°F (2015) | 0.83 in (2007) |
| October 28 | 73.0°F (2019) | 30.9°F (2013) | 1.66 in (2006) |
| October 29 | 78.1°F (2023) | 28.9°F (2001) | 1.82 in (2015) |
| October 30 | 66.9°F (1999) | 25.0°F (2016) | 3.22 in (2012) |
| October 31 | 77.0°F (2016) | 28.0°F (2011) | 1.52 in (2025) |