May weather in John Day, OR
The average temperature in John Day in May is 51.8°F (37.1°F–66.4°F). Average precipitation: 1.83 inches.
May is a spring month in John Day, and is warmer than the annual average of 46.8°F. Daily temperatures swing about 29.3°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 14h 36m. For travel, May is cool.
Avg High
66.4°F
Avg Low
37.1°F
Precipitation
1.83 in
Daylight
14h 36m
May records in John Day
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 84.9°F (2023) | 17.1°F (1954) | 0.49 in (1987) |
| May 2 | 84.9°F (1906) | 12.9°F (1954) | 0.29 in (1977) |
| May 3 | 87.1°F (1966) | 21.0°F (1964) | 0.57 in (2009) |
| May 4 | 91.0°F (1966) | 24.1°F (1962) | 0.64 in (1956) |
| May 5 | 93.9°F (1966) | 24.1°F (1965) | 0.88 in (1983) |
| May 6 | 91.0°F (1990) | 19.0°F (1964) | 0.46 in (1986) |
| May 7 | 91.9°F (1987) | 26.1°F (1965) | 0.80 in (2023) |
| May 8 | 91.0°F (1987) | 27.0°F (2002) | 0.85 in (1991) |
| May 9 | 93.0°F (1992) | 26.1°F (1965) | 0.82 in (1980) |
| May 10 | 88.0°F (1954) | 16.0°F (2024) | 1.52 in (1989) |
| May 11 | 87.1°F (1960) | 25.0°F (1970) | 0.57 in (2010) |
| May 12 | 87.1°F (1960) | 25.0°F (1985) | 0.40 in (1958) |
| May 13 | 91.0°F (1988) | 23.0°F (2024) | 0.77 in (2015) |
| May 14 | 91.0°F (1976) | 26.1°F (1962) | 0.41 in (1985) |
| May 15 | 91.9°F (1973) | 25.0°F (1974) | 0.85 in (1981) |
| May 16 | 91.9°F (1905) | 27.0°F (1977) | 0.72 in (2011) |
| May 17 | 95.0°F (2006) | 25.0°F (1974) | 0.55 in (1991) |
| May 18 | 96.1°F (2008) | 28.9°F (1965) | 0.60 in (1953) |
| May 19 | 93.9°F (1954) | 26.1°F (1960) | 0.92 in (1991) |
| May 20 | 89.1°F (2008) | 19.9°F (1953) | 0.67 in (1994) |
| May 21 | 89.1°F (1905) | 28.0°F (1987) | 1.20 in (2005) |
| May 22 | 91.9°F (1967) | 24.1°F (1960) | 0.53 in (1906) |
| May 23 | 89.1°F (1956) | 24.1°F (1964) | 0.54 in (2004) |
| May 24 | 91.0°F (2003) | 30.9°F (2013) | 0.45 in (1997) |
| May 25 | 93.9°F (2003) | 21.9°F (1975) | 0.56 in (1998) |
| May 26 | 93.0°F (1992) | 27.0°F (1964) | 0.73 in (2018) |
| May 27 | 93.9°F (1986) | 32.0°F (1973) | 0.70 in (1956) |
| May 28 | 95.0°F (1983) | 32.0°F (1960) | 0.56 in (2013) |
| May 29 | 98.1°F (1983) | 30.0°F (1959) | 1.83 in (1906) |
| May 30 | 97.0°F (1983) | 21.9°F (1906) | 0.57 in (1954) |
| May 31 | 98.1°F (1986) | 30.9°F (1984) | 1.39 in (1983) |