January weather in Harrisburg, PA
The average temperature in Harrisburg in January is 29.2°F (21.8°F–36.6°F). Average precipitation: 2.87 inches. Average snowfall is 6.4 inches.
January is a winter month in Harrisburg, and is cooler than the annual average of 51.9°F. Daily temperatures swing about 14.8°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 9h 26m. For travel, January is cold.
Avg High
36.6°F
Avg Low
21.8°F
Precipitation
2.87 in
Snow
6.4 in
January records in Harrisburg
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 54.0°F (2005) | 5.0°F (2018) | 0.94 in (2019) |
| January 2 | 62.1°F (2005) | 6.1°F (2018) | 1.21 in (2003) |
| January 3 | 59.0°F (2022) | 1.9°F (2018) | 0.90 in (2006) |
| January 4 | 62.1°F (2000) | 1.9°F (2018) | 0.67 in (2023) |
| January 5 | 64.9°F (2000) | 3.9°F (2014) | 0.64 in (2004) |
| January 6 | 63.0°F (2007) | 3.9°F (2018) | 0.71 in (2005) |
| January 7 | 66.0°F (2007) | -2.0°F (2014) | 1.18 in (2024) |
| January 8 | 62.1°F (2008) | -2.0°F (2014) | 0.87 in (2007) |
| January 9 | 64.0°F (2008) | 1.0°F (2015) | 0.66 in (2005) |
| January 10 | 60.1°F (2006) | 1.9°F (2004) | 2.25 in (2024) |
| January 11 | 55.0°F (2016) | 1.9°F (2004) | 0.76 in (2000) |
| January 12 | 66.9°F (2020) | 1.9°F (2004) | 1.10 in (2012) |
| January 13 | 64.0°F (2018) | 10.9°F (2022) | 1.00 in (2024) |
| January 14 | 63.0°F (2005) | 10.9°F (2018) | 1.22 in (2005) |
| January 15 | 51.1°F (2006) | 10.0°F (2018) | 0.29 in (2005) |
| January 16 | 54.0°F (2007) | 5.0°F (2022) | 0.41 in (2013) |
| January 17 | 51.1°F (2000) | 3.9°F (2009) | 1.00 in (2022) |
| January 18 | 57.9°F (2006) | 3.9°F (2009) | 0.81 in (2010) |
| January 19 | 53.1°F (2006) | -5.1°F (2000) | 0.37 in (2020) |
| January 20 | 52.0°F (2013) | 12.0°F (2000) | 1.33 in (2019) |
| January 21 | 57.9°F (2006) | -5.1°F (2025) | 0.41 in (2001) |
| January 22 | 48.9°F (2018) | -4.0°F (2025) | 0.24 in (2014) |
| January 23 | 51.1°F (2018) | -2.0°F (2025) | 1.01 in (2006) |
| January 24 | 52.0°F (2018) | 1.0°F (2025) | 0.78 in (2017) |
| January 25 | 60.1°F (2010) | 3.0°F (2011) | 1.15 in (2010) |
| January 26 | 60.1°F (2010) | 6.1°F (2004) | 0.98 in (2026) |
| January 27 | 54.0°F (2024) | 7.0°F (2022) | 0.66 in (2012) |
| January 28 | 59.0°F (2002) | 5.0°F (2005) | 0.64 in (2024) |
| January 29 | 61.0°F (2002) | 5.0°F (2014) | 0.32 in (2009) |
| January 30 | 66.9°F (2002) | 3.9°F (2014) | 0.40 in (2008) |
| January 31 | 64.0°F (2013) | -0.9°F (2019) | 1.79 in (2013) |