January weather in Monongahela, PA
The average temperature in Monongahela in January is 30.2°F (21.3°F–39.0°F). Average precipitation: 3.24 inches. Average snowfall is 3.8 inches.
January is a winter month in Monongahela, and is cooler than the annual average of 52.9°F. Daily temperatures swing about 17.7°F between overnight low and afternoon high. Expect about 15 days with precipitation. Daylight averages about 9h 26m. For travel, January is cold.
Avg High
39.0°F
Avg Low
21.3°F
Precipitation
3.24 in
Snow
3.8 in
January records in Monongahela
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 61.0°F (2019) | 0.0°F (2018) | 1.00 in (1932) |
| January 2 | 55.9°F (2022) | 0.0°F (2018) | 1.20 in (2003) |
| January 3 | 55.0°F (2022) | 0.0°F (2018) | 1.15 in (1999) |
| January 4 | 61.0°F (2023) | 0.0°F (2018) | 1.25 in (2023) |
| January 5 | 62.1°F (2023) | 3.0°F (2014) | 1.70 in (1994) |
| January 6 | 53.1°F (2022) | 1.9°F (2018) | 1.48 in (2005) |
| January 7 | 60.1°F (2012) | -7.1°F (2014) | 0.92 in (2009) |
| January 8 | 54.0°F (2012) | -7.1°F (2014) | 1.22 in (1998) |
| January 9 | 63.0°F (2019) | 1.0°F (2015) | 1.07 in (1999) |
| January 10 | 59.0°F (2026) | 1.0°F (2015) | 0.72 in (2024) |
| January 11 | 57.0°F (2020) | 1.0°F (2015) | 1.24 in (1974) |
| January 12 | 71.1°F (2020) | 15.1°F (2015) | 1.03 in (2005) |
| January 13 | 66.9°F (2017) | 7.0°F (2016) | 1.15 in (2023) |
| January 14 | 66.0°F (2013) | 3.9°F (2018) | 0.86 in (1939) |
| January 15 | 55.9°F (2020) | 1.9°F (2018) | 1.72 in (1999) |
| January 16 | 57.0°F (2020) | 10.0°F (2025) | 0.76 in (2007) |
| January 17 | 50.0°F (2023) | 5.0°F (2018) | 0.45 in (1935) |
| January 18 | 61.0°F (2017) | 8.1°F (2016) | 1.03 in (1937) |
| January 19 | 52.0°F (2023) | 7.0°F (2016) | 1.04 in (2020) |
| January 20 | 60.1°F (2023) | 7.0°F (2016) | 1.01 in (2019) |
| January 21 | 57.9°F (2017) | -2.0°F (2025) | 0.98 in (1979) |
| January 22 | 66.0°F (2017) | -6.0°F (2025) | 0.98 in (1937) |
| January 23 | 66.0°F (2018) | -6.0°F (2025) | 1.25 in (1966) |
| January 24 | 51.1°F (2017) | 0.0°F (2011) | 1.20 in (2017) |
| January 25 | 50.0°F (2020) | 1.9°F (2011) | 1.34 in (2010) |
| January 26 | 63.0°F (2024) | 12.0°F (2014) | 1.16 in (1933) |
| January 27 | 63.0°F (2024) | 1.0°F (2022) | 1.78 in (1952) |
| January 28 | 59.0°F (2018) | -2.0°F (2014) | 0.80 in (1994) |
| January 29 | 52.0°F (2013) | 1.0°F (2026) | 0.60 in (1951) |
| January 30 | 66.0°F (2013) | 1.0°F (2026) | 1.06 in (1932) |
| January 31 | 53.1°F (2016) | -8.0°F (2026) | 0.58 in (1968) |