Weather on March 18
Pittsburgh, PA
55 Years of Data
Avg High
51°F
Avg Low
31°F
Warmest
2012
66°F avg
Coldest
1993
19°F avg
About This Date
March 18th in Pittsburgh, PA typically brings cool spring weather, with average highs around 51°F and lows near 31°F. Over 44 years of records, the warmest March 18th was in 2012 (66°F average), while the coldest was 1993 (19°F) — a 47°F range across recorded history. Precipitation has occurred on 39% of recorded March 18th dates, with snow falling 5% of the time. The last decade has been 3.2°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.2°F cooler on this date compared to 20-30 years ago.
Planning for March 18th in Pittsburgh, PA? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 35° | 15° | 25° | — | — |
| 2025 | 66° | 27° | 47° | — | — |
| 2024 | 36° | 28° | 32° | — | — |
| 2023 | 39° | 20° | 30° | — | — |
| 2022 | 73° | 47° | 60° | 0.15" | — |
| 2021 | 54° | 37° | 45° | 4.01" | — |
| 2020 | 57° | 33° | 45° | 1.6" | — |
| 2019 | 41° | 30° | 36° | — | — |
| 2018 | 52° | 24° | 38° | — | — |
| 2017 | 45° | 32° | 38° | 0.18" | — |
| 2016 | 59° | 36° | 47° | — | — |
| 2015 | 44° | 24° | 34° | — | — |
| 2014 | 53° | 28° | 41° | — | — |
| 2013 | 40° | 29° | 35° | 0.84" | — |
| 2012warmest | 72° | 61° | 66° | — | — |
| 2011 | 72° | 49° | 60° | — | — |
| 2010 | 64° | 38° | 51° | — | — |
| 2009 | 74° | 44° | 59° | — | — |
| 2008 | 46° | 39° | 43° | 0.84" | — |
| 2007 | 36° | 20° | 28° | 0.63" | — |
| 2006 | 38° | 20° | 29° | — | — |
| 2005 | 54° | 30° | 42° | — | — |
| 2004 | 45° | 26° | 35° | 0.23" | — |
| 2003 | 70° | 50° | 60° | — | — |
| 2002 | 55° | 39° | 47° | 0.05" | — |
| 2001 | 46° | 27° | 36° | — | — |
| 2000 | 46° | 19° | 33° | — | — |
| 1999 | 62° | 36° | 49° | — | — |
| 1998 | 57° | 40° | 48° | 0.3" | — |
| 1997 | 52° | 39° | 45° | 0.2" | — |
| 1996 | 43° | 37° | 40° | — | — |
| 1995 | 58° | 30° | 44° | — | — |
| 1994 | 42° | 28° | 35° | — | — |
| 1993coldest | 30° | 9° | 19° | — | — |
| 1992 | 44° | 24° | 34° | 0.1" | — |
| 1979 | 60° | 36° | 48° | — | — |
| 1978 | 39° | 24° | 32° | — | — |
| 1977 | 54° | 32° | 43° | 2.95" | — |
| 1976 | 48° | 21° | 35° | 0.03" | 0.1" |
| 1975 | 56° | 41° | 48° | 0.36" | — |
| 1974 | 45° | 29° | 37° | — | — |
| 1973 | 33° | 26° | 30° | 0.15" | 0.5" |
| 1972 | 42° | 30° | 36° | 0.18" | — |
| 1971 | 46° | 25° | 35° | — | — |
44 years of data from PITTSBURGH WSO CITY