May weather in Vernonia, OR
The average temperature in Vernonia in May is 52.9°F (40.3°F–65.5°F). Average precipitation: 2.39 inches.
May is a spring month in Vernonia, and is warmer than the annual average of 49.4°F. Daily temperatures swing about 25.2°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 14h 44m. For travel, May is a comfortable month to visit.
Avg High
65.5°F
Avg Low
40.3°F
Precipitation
2.39 in
Daylight
14h 44m
May records in Vernonia
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 88.0°F (1998) | 27.0°F (2019) | 0.83 in (2005) |
| May 2 | 84.9°F (1998) | 30.9°F (1972) | 1.10 in (2010) |
| May 3 | 82.9°F (2017) | 27.0°F (2002) | 1.43 in (1975) |
| May 4 | 90.0°F (1992) | 30.0°F (2011) | 0.89 in (2009) |
| May 5 | 88.0°F (1990) | 27.0°F (2001) | 1.26 in (1979) |
| May 6 | 84.0°F (1992) | 28.9°F (2003) | 0.88 in (2022) |
| May 7 | 91.0°F (1987) | 27.0°F (2002) | 0.97 in (1988) |
| May 8 | 93.9°F (1987) | 28.0°F (2002) | 0.48 in (2000) |
| May 9 | 93.0°F (1987) | 27.0°F (2012) | 0.74 in (2000) |
| May 10 | 88.0°F (2024) | 27.0°F (2010) | 0.42 in (2000) |
| May 11 | 84.9°F (2024) | 30.0°F (2012) | 0.70 in (2015) |
| May 12 | 90.0°F (1997) | 28.0°F (1985) | 0.57 in (1987) |
| May 13 | 91.0°F (2023) | 30.0°F (1985) | 0.70 in (2019) |
| May 14 | 90.0°F (2014) | 28.0°F (2010) | 0.69 in (1974) |
| May 15 | 89.1°F (2023) | 28.9°F (2002) | 0.58 in (2017) |
| May 16 | 95.0°F (2008) | 30.9°F (2012) | 1.05 in (1971) |
| May 17 | 91.9°F (2008) | 30.9°F (2003) | 0.56 in (1998) |
| May 18 | 84.9°F (1993) | 30.9°F (2003) | 0.93 in (1996) |
| May 19 | 80.1°F (1968) | 30.9°F (1982) | 0.60 in (1981) |
| May 20 | 82.0°F (1978) | 30.9°F (1975) | 1.00 in (1968) |
| May 21 | 84.0°F (1978) | 30.0°F (1992) | 0.85 in (1998) |
| May 22 | 93.0°F (2001) | 30.9°F (1991) | 0.75 in (2013) |
| May 23 | 87.1°F (1969) | 30.0°F (2010) | 0.65 in (2013) |
| May 24 | 89.1°F (1999) | 32.0°F (2009) | 0.45 in (1968) |
| May 25 | 91.9°F (1992) | 30.0°F (2009) | 0.55 in (1968) |
| May 26 | 87.1°F (2005) | 30.9°F (1999) | 0.96 in (2010) |
| May 27 | 93.0°F (2005) | 32.0°F (1994) | 0.66 in (2004) |
| May 28 | 90.0°F (2020) | 30.9°F (2001) | 1.05 in (1993) |
| May 29 | 99.0°F (1983) | 33.1°F (1999) | 0.90 in (1997) |
| May 30 | 88.0°F (2007) | 30.9°F (1999) | 0.46 in (1987) |
| May 31 | 90.0°F (1986) | 32.0°F (2023) | 0.91 in (1987) |