May weather in Piedmont, CA
The average temperature in Piedmont in May is 60.8°F (52.9°F–68.6°F). Average precipitation: 0.75 inches.
May is a spring month in Piedmont, and is warmer than the annual average of 59.6°F. Daily temperatures swing about 15.7°F between overnight low and afternoon high. Expect about 4 days with precipitation. Daylight averages about 14h 3m. For travel, May is one of the best months of the year to visit.
Avg High
68.6°F
Avg Low
52.9°F
Precipitation
0.75 in
Daylight
14h 3m
May records in Piedmont
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 89.1°F (2014) | 46.9°F (1983) | 0.74 in (2009) |
| May 2 | 90.0°F (2013) | 45.0°F (1974) | 0.35 in (2003) |
| May 3 | 86.0°F (2013) | 48.9°F (1971) | 0.37 in (2023) |
| May 4 | 84.9°F (2011) | 44.1°F (1975) | 0.72 in (2024) |
| May 5 | 91.0°F (1987) | 43.0°F (1975) | 0.64 in (1998) |
| May 6 | 90.0°F (2007) | 44.1°F (1977) | 0.85 in (1994) |
| May 7 | 90.0°F (2007) | 46.9°F (1986) | 0.61 in (1988) |
| May 8 | 89.1°F (2001) | 46.9°F (1985) | 0.43 in (2005) |
| May 9 | 87.1°F (1992) | 45.0°F (2003) | 0.44 in (1980) |
| May 10 | 86.0°F (1973) | 48.0°F (2002) | 0.11 in (2010) |
| May 11 | 86.0°F (1981) | 45.0°F (2010) | 0.14 in (1998) |
| May 12 | 105.1°F (1976) | 46.0°F (2022) | 0.32 in (1998) |
| May 13 | 93.0°F (1976) | 46.9°F (1974) | 0.12 in (1991) |
| May 14 | 93.0°F (2014) | 46.9°F (1974) | 0.21 in (1995) |
| May 15 | 98.1°F (2008) | 46.0°F (2011) | 1.73 in (1996) |
| May 16 | 93.0°F (1997) | 48.0°F (1974) | 0.36 in (1996) |
| May 17 | 93.9°F (1997) | 48.0°F (1977) | 0.39 in (2020) |
| May 18 | 93.0°F (1978) | 45.0°F (1974) | 1.11 in (2019) |
| May 19 | 93.9°F (1983) | 46.0°F (1974) | 0.39 in (2002) |
| May 20 | 89.1°F (1988) | 48.0°F (1974) | 0.39 in (2002) |
| May 21 | 91.9°F (2000) | 48.9°F (1974) | 0.38 in (2006) |
| May 22 | 84.9°F (1984) | 46.9°F (2002) | 0.34 in (1990) |
| May 23 | 91.9°F (1982) | 46.9°F (2010) | 0.27 in (1997) |
| May 24 | 89.1°F (1982) | 48.9°F (2009) | 0.41 in (1993) |
| May 25 | 91.0°F (2020) | 48.9°F (1980) | 0.42 in (2010) |
| May 26 | 93.9°F (1974) | 50.0°F (2008) | 0.20 in (1990) |
| May 27 | 100.0°F (1984) | 46.9°F (1977) | 1.48 in (1990) |
| May 28 | 98.1°F (1975) | 46.9°F (1976) | 0.83 in (1998) |
| May 29 | 100.0°F (1975) | 48.9°F (1974) | 0.34 in (1998) |
| May 30 | 98.1°F (1978) | 48.9°F (1974) | 0.30 in (1990) |
| May 31 | 89.1°F (2001) | 48.9°F (1971) | 0.21 in (2011) |