May weather in Philomath, OR
The average temperature in Philomath in May is 53.7°F (38.6°F–68.9°F). Average precipitation: 2.80 inches.
May is a spring month in Philomath, and is warmer than the annual average of 49.8°F. Daily temperatures swing about 30.3°F between overnight low and afternoon high. Expect about 14 days with precipitation. Daylight averages about 14h 37m. For travel, May is a comfortable month to visit.
Avg High
68.9°F
Avg Low
38.6°F
Precipitation
2.80 in
Daylight
14h 37m
May records in Philomath
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 84.0°F (1998) | 28.0°F (2009) | 2.28 in (1949) |
| May 2 | 89.1°F (2014) | 28.9°F (2019) | 0.94 in (1949) |
| May 3 | 82.0°F (2013) | 27.0°F (2020) | 2.32 in (1948) |
| May 4 | 82.9°F (1992) | 30.0°F (1996) | 2.23 in (1941) |
| May 5 | 84.9°F (1992) | 30.9°F (1964) | 2.08 in (1979) |
| May 6 | 86.0°F (2013) | 28.0°F (2017) | 1.68 in (1963) |
| May 7 | 86.0°F (1992) | 27.0°F (2017) | 1.50 in (2022) |
| May 8 | 89.1°F (1987) | 30.9°F (1965) | 0.89 in (1991) |
| May 9 | 90.0°F (1987) | 32.0°F (2009) | 0.70 in (1983) |
| May 10 | 88.0°F (1987) | 30.0°F (2012) | 1.67 in (1937) |
| May 11 | 90.0°F (2024) | 32.0°F (1985) | 0.92 in (2000) |
| May 12 | 90.0°F (2024) | 30.9°F (1985) | 1.01 in (1945) |
| May 13 | 84.9°F (2023) | 30.9°F (2009) | 1.10 in (1945) |
| May 14 | 93.0°F (2023) | 33.1°F (1964) | 2.10 in (2022) |
| May 15 | 93.9°F (2023) | 30.0°F (2017) | 1.52 in (2016) |
| May 16 | 90.0°F (2006) | 30.0°F (2017) | 1.76 in (1971) |
| May 17 | 95.0°F (2008) | 30.0°F (2017) | 0.93 in (1972) |
| May 18 | 95.0°F (2008) | 28.9°F (2017) | 1.60 in (1957) |
| May 19 | 86.0°F (2006) | 35.1°F (1987) | 0.79 in (2005) |
| May 20 | 88.0°F (2008) | 30.0°F (2009) | 1.15 in (1998) |
| May 21 | 84.9°F (1967) | 28.9°F (2020) | 0.79 in (1998) |
| May 22 | 84.9°F (2001) | 28.0°F (2020) | 0.75 in (1953) |
| May 23 | 91.9°F (2001) | 33.1°F (2020) | 0.64 in (1984) |
| May 24 | 88.0°F (1999) | 34.0°F (2009) | 0.78 in (1973) |
| May 25 | 88.0°F (1992) | 34.0°F (1975) | 1.35 in (1968) |
| May 26 | 86.0°F (1966) | 32.0°F (1967) | 0.90 in (1968) |
| May 27 | 91.0°F (2005) | 30.0°F (1966) | 0.82 in (2011) |
| May 28 | 91.0°F (2020) | 32.0°F (2016) | 1.08 in (1993) |
| May 29 | 93.0°F (1983) | 32.0°F (1966) | 0.91 in (1997) |
| May 30 | 88.0°F (1973) | 33.1°F (1966) | 0.91 in (1943) |
| May 31 | 91.0°F (2021) | 33.1°F (2020) | 1.04 in (1987) |