Weather on December 15
Pittsburgh, PA
55 Years of Data
Avg High
43°F
Avg Low
31°F
Warmest
1971
60°F avg
Coldest
2016
12°F avg
About This Date
December 15th in Pittsburgh, PA typically brings chilly winter weather, with average highs around 43°F and lows near 31°F. Over 43 years of records, the warmest December 15th was in 1971 (60°F average), while the coldest was 2016 (12°F) — a 48°F range across recorded history. Precipitation has occurred on 35% of recorded December 15th dates, with snow falling 2% of the time (heaviest snowfall: 4"). The last decade has been 1.9°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.9°F cooler on this date compared to 20-30 years ago.
Planning for December 15th in Pittsburgh, PA? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Cooling Trend
1.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 19° | 6° | 13° | — | — |
| 2024 | 41° | 30° | 36° | 0.74" | — |
| 2023 | 54° | 29° | 42° | — | — |
| 2022 | 45° | 37° | 41° | 2.18" | — |
| 2021 | 58° | 43° | 50° | — | — |
| 2020 | 33° | 26° | 30° | — | — |
| 2019 | 38° | 29° | 34° | — | — |
| 2018 | 48° | 42° | 45° | 1.88" | — |
| 2017 | 26° | 16° | 21° | — | — |
| 2016coldest | 18° | 6° | 12° | — | — |
| 2015 | 53° | 44° | 49° | — | — |
| 2014 | 46° | 37° | 42° | — | — |
| 2013 | 39° | 22° | 31° | 0.05" | — |
| 2012 | 51° | 33° | 42° | 0.03" | — |
| 2011 | 59° | 42° | 51° | 0.48" | — |
| 2010 | 22° | 12° | 17° | — | — |
| 2009 | 50° | 28° | 39° | 0.1" | — |
| 2008 | 61° | 28° | 45° | 0.33" | — |
| 2007 | 35° | 28° | 32° | — | — |
| 2006 | 56° | 41° | 48° | — | — |
| 2005 | 33° | 23° | 28° | 0.23" | — |
| 2004 | 26° | 19° | 23° | — | — |
| 2003 | 31° | 26° | 28° | — | — |
| 2002 | 42° | 32° | 37° | — | — |
| 2001 | 44° | 33° | 39° | — | — |
| 2000 | 35° | 28° | 32° | — | — |
| 1999 | 54° | 37° | 45° | 0.1" | — |
| 1998 | 48° | 31° | 39° | — | — |
| 1997 | 45° | 27° | 36° | — | — |
| 1996 | 44° | 28° | 36° | — | — |
| 1995 | 48° | 41° | 45° | — | — |
| 1994 | 46° | 40° | 43° | — | — |
| 1993 | 48° | 38° | 43° | 0.15" | — |
| 1992 | 47° | 29° | 38° | — | — |
| 1991 | 37° | 30° | 34° | — | — |
| 1978 | 48° | 32° | 40° | — | — |
| 1977 | 40° | 36° | 38° | — | — |
| 1976 | 51° | 34° | 42° | — | — |
| 1975 | 61° | 38° | 49° | 1.14" | — |
| 1974 | 40° | 32° | 36° | 1.68" | 4" |
| 1973 | 31° | 26° | 28° | — | — |
| 1972 | 45° | 28° | 36° | 0.64" | — |
| 1971warmest | 71° | 49° | 60° | 0.15" | — |
43 years of data from PITTSBURGH WSO CITY