May weather in Butler, PA
The average temperature in Butler in May is 57.4°F (44.8°F–70.0°F). Average precipitation: 3.80 inches.
May is a spring month in Butler, and is warmer than the annual average of 48.5°F. Daily temperatures swing about 25.2°F between overnight low and afternoon high. Expect about 15 days with precipitation. Daylight averages about 14h 17m. For travel, May is a comfortable month to visit.
Avg High
70.0°F
Avg Low
44.8°F
Precipitation
3.80 in
Daylight
14h 17m
May records in Butler
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 89.1°F (1970) | 21.9°F (1978) | 0.68 in (1974) |
| May 2 | 89.1°F (1970) | 21.9°F (1978) | 1.01 in (1989) |
| May 3 | 82.9°F (2012) | 25.0°F (1978) | 0.69 in (1977) |
| May 4 | 88.0°F (2012) | 25.0°F (1978) | 1.00 in (1998) |
| May 5 | 86.0°F (2001) | 28.9°F (1974) | 0.85 in (1990) |
| May 6 | 86.0°F (1980) | 26.1°F (1968) | 1.26 in (1991) |
| May 7 | 86.0°F (1982) | 23.0°F (1970) | 0.76 in (2009) |
| May 8 | 87.1°F (2000) | 24.1°F (1970) | 2.27 in (2012) |
| May 9 | 89.1°F (1979) | 28.0°F (1976) | 1.02 in (1969) |
| May 10 | 90.0°F (1979) | 25.0°F (1983) | 1.42 in (2003) |
| May 11 | 87.1°F (2015) | 28.0°F (1972) | 0.92 in (1989) |
| May 12 | 89.1°F (1979) | 28.0°F (1972) | 1.63 in (2006) |
| May 13 | 86.0°F (1982) | 28.9°F (1976) | 0.97 in (2002) |
| May 14 | 87.1°F (2014) | 27.0°F (1996) | 1.05 in (2005) |
| May 15 | 88.0°F (1991) | 30.0°F (1996) | 1.05 in (1987) |
| May 16 | 87.1°F (1991) | 30.0°F (1973) | 1.46 in (2014) |
| May 17 | 87.1°F (1991) | 28.9°F (1984) | 0.95 in (1990) |
| May 18 | 88.0°F (1977) | 30.0°F (2009) | 1.04 in (1986) |
| May 19 | 89.1°F (1982) | 30.0°F (2002) | 1.50 in (1999) |
| May 20 | 88.0°F (1996) | 30.0°F (2002) | 0.91 in (1983) |
| May 21 | 88.0°F (1977) | 28.0°F (2002) | 1.30 in (1990) |
| May 22 | 88.0°F (1977) | 28.9°F (2002) | 1.35 in (2017) |
| May 23 | 88.0°F (1970) | 30.0°F (2006) | 1.27 in (1983) |
| May 24 | 87.1°F (2007) | 35.1°F (2002) | 1.76 in (1978) |
| May 25 | 86.0°F (1972) | 33.1°F (1992) | 1.63 in (1994) |
| May 26 | 88.0°F (2020) | 30.9°F (1988) | 1.90 in (1997) |
| May 27 | 90.0°F (2020) | 32.0°F (1969) | 1.15 in (1987) |
| May 28 | 89.1°F (2012) | 30.9°F (1971) | 3.32 in (1985) |
| May 29 | 90.0°F (2012) | 33.1°F (1971) | 2.66 in (2019) |
| May 30 | 91.0°F (1987) | 35.1°F (1996) | 1.06 in (1974) |
| May 31 | 91.0°F (1987) | 33.1°F (2001) | 0.94 in (1985) |