Weather on August 31
Pittsburgh, PA
55 Years of Data
Avg High
80°F
Avg Low
62°F
Warmest
1973
83°F avg
Coldest
2009
60°F avg
About This Date
August 31st in Pittsburgh, PA typically brings warm summer weather, with average highs around 80°F and lows near 62°F. Over 38 years of records, the warmest August 31st was in 1973 (83°F average), while the coldest was 2009 (60°F) — a 23°F range across recorded history. Rain or other precipitation has occurred on about 29% of August 31st dates historically, with the wettest August 31st recording 3.4" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for August 31st in Pittsburgh, PA? Stay hydrated and seek shade during peak afternoon hours.
Cooling Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 75° | 48° | 62° | — | — |
| 2024 | 85° | 71° | 78° | 2.34" | — |
| 2023 | 75° | 57° | 66° | — | — |
| 2022 | 78° | 61° | 69° | — | — |
| 2021 | 74° | 67° | 70° | 3.07" | — |
| 2020 | 75° | 58° | 66° | — | — |
| 2019 | 76° | 62° | 69° | — | — |
| 2018 | 84° | 64° | 74° | — | — |
| 2017 | 76° | 56° | 66° | — | — |
| 2016 | 81° | 62° | 71° | 0.18" | — |
| 2015 | 88° | 67° | 77° | — | — |
| 2014 | 75° | 69° | 72° | 3.4" | — |
| 2013 | 85° | 69° | 77° | — | — |
| 2012 | 91° | 58° | 74° | — | — |
| 2011 | 84° | 62° | 73° | — | — |
| 2010 | 93° | 65° | 79° | — | — |
| 2009coldest | 69° | 51° | 60° | — | — |
| 2008 | 83° | 59° | 71° | — | — |
| 2007 | 77° | 61° | 69° | — | — |
| 2006 | 70° | 63° | 66° | — | — |
| 2005 | 73° | 65° | 69° | 0.61" | — |
| 2004 | 74° | 59° | 66° | — | — |
| 2003 | 77° | 57° | 67° | 0.08" | — |
| 2002 | 82° | 58° | 70° | — | — |
| 2001 | 78° | 65° | 71° | 1.83" | — |
| 2000 | 81° | 65° | 73° | — | — |
| 1999 | 77° | 51° | 64° | — | — |
| 1993 | 93° | 74° | 83° | 0.43" | — |
| 1992 | 76° | 61° | 68° | — | — |
| 1979 | 87° | 64° | 76° | — | — |
| 1978 | 66° | 61° | 63° | 0.48" | — |
| 1977 | 88° | 66° | 77° | — | — |
| 1976 | 78° | 46° | 62° | — | — |
| 1975 | 70° | 64° | 67° | 2.54" | — |
| 1974 | 80° | 67° | 73° | 0.3" | — |
| 1973warmest | 94° | 73° | 83° | — | — |
| 1972 | 86° | 58° | 72° | — | — |
| 1971 | 86° | 60° | 73° | — | — |
38 years of data from PITTSBURGH WSO CITY