May weather in Pittsburgh, PA
The average temperature in Pittsburgh in May is 61.8°F (51.8°F–71.9°F). Average precipitation: 4.08 inches.
May is a spring month in Pittsburgh, and is warmer than the annual average of 52.4°F. Daily temperatures swing about 20.1°F between overnight low and afternoon high. Expect about 15 days with precipitation. Daylight averages about 14h 15m. For travel, May is a comfortable month to visit.
Avg High
71.9°F
Avg Low
51.8°F
Precipitation
4.08 in
Daylight
14h 15m
May records in Pittsburgh
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 84.9°F (1936) | 33.1°F (1939) | 0.73 in (2000) |
| May 2 | 84.9°F (2024) | 34.0°F (1939) | 0.68 in (2010) |
| May 3 | 86.0°F (2012) | 36.0°F (1939) | 1.20 in (2022) |
| May 4 | 88.0°F (1949) | 34.0°F (2004) | 0.98 in (2009) |
| May 5 | 90.0°F (1949) | 33.1°F (2020) | 2.12 in (1950) |
| May 6 | 89.1°F (1949) | 37.9°F (2020) | 1.54 in (2022) |
| May 7 | 87.1°F (1936) | 34.0°F (1947) | 0.60 in (1946) |
| May 8 | 88.0°F (1936) | 30.0°F (1947) | 0.92 in (2012) |
| May 9 | 86.0°F (1936) | 28.2°F (2020) | 0.98 in (2021) |
| May 10 | 90.0°F (1936) | 30.9°F (1947) | 1.01 in (2008) |
| May 11 | 89.1°F (1948) | 37.9°F (1949) | 1.14 in (2006) |
| May 12 | 87.1°F (1936) | 33.1°F (1938) | 0.70 in (2001) |
| May 13 | 89.1°F (2014) | 35.1°F (2013) | 0.79 in (1999) |
| May 14 | 82.9°F (2004) | 32.0°F (2013) | 0.71 in (2018) |
| May 15 | 86.0°F (2013) | 37.9°F (2016) | 1.26 in (2014) |
| May 16 | 84.0°F (1951) | 36.0°F (2016) | 0.92 in (2018) |
| May 17 | 87.1°F (2017) | 42.1°F (2008) | 1.02 in (2010) |
| May 18 | 87.1°F (1999) | 37.0°F (2009) | 2.79 in (1999) |
| May 19 | 86.0°F (1939) | 33.1°F (2002) | 0.97 in (2000) |
| May 20 | 86.0°F (2021) | 36.0°F (2002) | 1.22 in (1952) |
| May 21 | 88.0°F (2022) | 33.1°F (2002) | 1.80 in (2025) |
| May 22 | 86.0°F (1937) | 33.1°F (2002) | 1.17 in (2025) |
| May 23 | 86.0°F (1939) | 36.0°F (2006) | 1.44 in (2000) |
| May 24 | 84.0°F (1936) | 39.0°F (2013) | 0.87 in (1999) |
| May 25 | 88.0°F (2012) | 34.0°F (2013) | 1.09 in (1952) |
| May 26 | 91.9°F (1939) | 39.9°F (2013) | 0.55 in (1937) |
| May 27 | 91.0°F (2012) | 42.1°F (1949) | 1.22 in (2014) |
| May 28 | 89.1°F (2012) | 37.0°F (1949) | 0.94 in (2000) |
| May 29 | 89.1°F (2018) | 39.9°F (1936) | 2.32 in (2016) |
| May 30 | 89.1°F (2006) | 39.0°F (1947) | 0.70 in (2025) |
| May 31 | 90.0°F (2011) | 39.0°F (2001) | 0.59 in (2003) |