May weather in Washington, PA
The average temperature in Washington in May is 60.5°F (49.1°F–71.9°F). Average precipitation: 4.14 inches.
May is a spring month in Washington, and is warmer than the annual average of 51.5°F. Daily temperatures swing about 22.8°F between overnight low and afternoon high. Expect about 14 days with precipitation. Daylight averages about 14h 14m. For travel, May is a comfortable month to visit.
Avg High
71.9°F
Avg Low
49.1°F
Precipitation
4.14 in
Daylight
14h 14m
May records in Washington
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 82.0°F (2012) | 28.9°F (1978) | 0.85 in (1994) |
| May 2 | 84.9°F (2007) | 26.1°F (1984) | 1.05 in (2000) |
| May 3 | 82.0°F (2001) | 30.0°F (1986) | 1.14 in (1985) |
| May 4 | 86.0°F (2012) | 30.0°F (1982) | 0.62 in (1984) |
| May 5 | 84.0°F (2001) | 30.0°F (1982) | 0.91 in (2009) |
| May 6 | 82.0°F (2000) | 26.1°F (1984) | 1.10 in (1991) |
| May 7 | 87.1°F (1982) | 24.1°F (2010) | 0.63 in (2009) |
| May 8 | 84.9°F (2000) | 28.0°F (1976) | 1.75 in (2003) |
| May 9 | 84.0°F (2014) | 23.0°F (2010) | 0.99 in (1996) |
| May 10 | 84.9°F (2002) | 19.9°F (1983) | 1.40 in (2008) |
| May 11 | 86.0°F (1993) | 26.1°F (1983) | 1.06 in (2013) |
| May 12 | 84.0°F (2004) | 27.0°F (1983) | 0.76 in (2010) |
| May 13 | 84.9°F (2004) | 26.1°F (1983) | 0.53 in (2002) |
| May 14 | 90.0°F (2014) | 30.9°F (1996) | 0.73 in (1992) |
| May 15 | 84.9°F (1983) | 26.1°F (1984) | 1.20 in (1983) |
| May 16 | 87.1°F (2013) | 19.9°F (1984) | 1.27 in (2014) |
| May 17 | 86.0°F (1991) | 28.0°F (1984) | 0.71 in (1990) |
| May 18 | 86.0°F (1982) | 30.0°F (1983) | 1.75 in (1978) |
| May 19 | 89.1°F (1982) | 30.0°F (2010) | 1.42 in (1999) |
| May 20 | 93.9°F (1977) | 33.1°F (2002) | 1.19 in (2000) |
| May 21 | 93.0°F (1977) | 30.9°F (2002) | 0.98 in (2004) |
| May 22 | 90.0°F (1977) | 30.9°F (2002) | 1.73 in (2001) |
| May 23 | 90.0°F (1977) | 33.1°F (2002) | 0.90 in (1983) |
| May 24 | 88.0°F (1977) | 30.0°F (1983) | 0.86 in (2000) |
| May 25 | 84.9°F (2007) | 33.1°F (2013) | 1.50 in (1997) |
| May 26 | 86.0°F (2012) | 33.1°F (2013) | 2.14 in (1997) |
| May 27 | 88.0°F (1978) | 33.1°F (1983) | 1.03 in (1987) |
| May 28 | 89.1°F (2012) | 30.0°F (1983) | 0.76 in (2014) |
| May 29 | 89.1°F (2012) | 34.0°F (1984) | 0.99 in (2009) |
| May 30 | 90.0°F (1991) | 42.1°F (1990) | 0.50 in (1990) |
| May 31 | 90.0°F (2011) | 37.0°F (2001) | 1.65 in (1985) |