December weather in Jeannette, PA
The average temperature in Jeannette in December is 34.0°F (26.6°F–41.4°F). Average precipitation: 3.22 inches. Average snowfall is 5.3 inches.
December is a winter month in Jeannette, and is cooler than the annual average of 52.4°F. Daily temperatures swing about 14.8°F between overnight low and afternoon high. Expect about 14 days with precipitation. Daylight averages about 9h 8m. For travel, December is cold.
Avg High
41.4°F
Avg Low
26.6°F
Precipitation
3.22 in
Snow
5.3 in
December records in Jeannette
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 60.1°F (2017) | 18.0°F (2024) | 0.66 in (2016) |
| December 2 | 57.9°F (2012) | 18.0°F (2024) | 0.72 in (2015) |
| December 3 | 64.0°F (2018) | 21.9°F (2017) | 0.35 in (2023) |
| December 4 | 68.0°F (2012) | 21.9°F (2017) | 0.28 in (2012) |
| December 5 | 60.1°F (2013) | 18.0°F (2025) | 1.18 in (2013) |
| December 6 | 57.0°F (2021) | 12.0°F (2013) | 0.50 in (2013) |
| December 7 | 55.9°F (2021) | 10.9°F (2013) | 1.30 in (2012) |
| December 8 | 63.0°F (2022) | 12.0°F (2013) | 1.42 in (2009) |
| December 9 | 63.0°F (2023) | 10.9°F (2025) | 0.58 in (2008) |
| December 10 | 61.0°F (2023) | 10.9°F (2025) | 1.12 in (2019) |
| December 11 | 62.1°F (2024) | 14.0°F (2013) | 1.25 in (2008) |
| December 12 | 64.0°F (2020) | 14.0°F (2013) | 0.77 in (1949) |
| December 13 | 62.1°F (2020) | 12.0°F (2017) | 0.42 in (1949) |
| December 14 | 66.0°F (2015) | 12.0°F (2017) | 0.47 in (2013) |
| December 15 | 63.0°F (2015) | 10.0°F (2016) | 1.13 in (1948) |
| December 16 | 55.9°F (2012) | 1.9°F (2016) | 0.82 in (2018) |
| December 17 | 66.9°F (2021) | 6.1°F (2016) | 0.93 in (2012) |
| December 18 | 55.0°F (2016) | 18.0°F (2013) | 1.21 in (2016) |
| December 19 | 60.1°F (2025) | 16.0°F (2019) | 1.23 in (2008) |
| December 20 | 68.0°F (2013) | 10.0°F (2016) | 1.19 in (2012) |
| December 21 | 91.9°F (2015) | 10.0°F (2016) | 1.00 in (2018) |
| December 22 | 60.1°F (2013) | 18.0°F (2025) | 0.65 in (2018) |
| December 23 | 60.1°F (2015) | 12.0°F (2024) | 0.61 in (2008) |
| December 24 | 62.1°F (2015) | -2.0°F (2022) | 0.73 in (2008) |
| December 25 | 61.0°F (2015) | 1.0°F (2022) | 1.00 in (2020) |
| December 26 | 61.0°F (2023) | 6.1°F (2022) | 0.75 in (2012) |
| December 27 | 62.1°F (2016) | 6.1°F (2022) | 0.84 in (2011) |
| December 28 | 66.0°F (2015) | 3.9°F (2017) | 0.58 in (2023) |
| December 29 | 64.9°F (2024) | 3.9°F (2017) | 0.96 in (1948) |
| December 30 | 66.9°F (2024) | 3.9°F (2017) | 0.54 in (2019) |
| December 31 | 66.9°F (2022) | 1.0°F (2017) | 0.23 in (2020) |