May weather in Richland, OR
The average temperature in Richland in May is 56.6°F (41.3°F–71.9°F). Average precipitation: inches.
May is a spring month in Richland, and is warmer than the annual average of 49.5°F. Daily temperatures swing about 30.6°F between overnight low and afternoon high. Daylight averages about 14h 38m. For travel, May is a comfortable month to visit.
Avg High
71.9°F
Avg Low
41.3°F
Precipitation
in
Daylight
14h 38m
May records in Richland
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 89.1°F (1987) | 12.0°F (1954) | 0.50 in (1893) |
| May 2 | 91.0°F (1947) | 14.0°F (1954) | 0.45 in (1960) |
| May 3 | 91.0°F (1947) | 21.0°F (1959) | 0.69 in (1973) |
| May 4 | 93.9°F (1966) | 23.0°F (1996) | 1.50 in (1956) |
| May 5 | 91.9°F (1966) | 25.0°F (1950) | 0.30 in (1970) |
| May 6 | 95.0°F (1947) | 26.1°F (1950) | 0.85 in (2005) |
| May 7 | 91.9°F (1987) | 25.0°F (2010) | 0.55 in (1979) |
| May 8 | 95.0°F (1923) | 28.0°F (1964) | 1.00 in (1962) |
| May 9 | 93.0°F (1987) | 25.0°F (1966) | 0.60 in (2005) |
| May 10 | 90.0°F (1949) | 21.0°F (1999) | 0.49 in (1910) |
| May 11 | 90.0°F (1949) | 24.1°F (1916) | 0.75 in (2007) |
| May 12 | 93.9°F (1949) | 25.0°F (1954) | 1.35 in (1958) |
| May 13 | 95.0°F (1949) | 26.1°F (1956) | 0.30 in (1901) |
| May 14 | 95.0°F (1949) | 28.0°F (1916) | 0.42 in (1968) |
| May 15 | 95.0°F (1973) | 27.0°F (1948) | 1.10 in (1959) |
| May 16 | 93.9°F (1973) | 27.0°F (1971) | 0.90 in (1998) |
| May 17 | 93.9°F (2006) | 24.1°F (1974) | 0.50 in (1991) |
| May 18 | 98.1°F (2008) | 28.0°F (1974) | 0.85 in (1991) |
| May 19 | 91.9°F (1958) | 28.0°F (1899) | 0.76 in (1948) |
| May 20 | 96.1°F (1958) | 28.0°F (1974) | 0.58 in (1912) |
| May 21 | 95.0°F (1958) | 26.1°F (1918) | 0.41 in (1978) |
| May 22 | 93.9°F (1958) | 30.0°F (1918) | 1.50 in (1998) |
| May 23 | 93.0°F (1958) | 26.1°F (1964) | 0.55 in (1970) |
| May 24 | 95.0°F (1958) | 28.9°F (1950) | 0.95 in (1945) |
| May 25 | 96.1°F (1958) | 25.0°F (1975) | 0.21 in (1973) |
| May 26 | 96.1°F (1958) | 30.0°F (1906) | 1.60 in (1998) |
| May 27 | 97.0°F (1957) | 27.0°F (1906) | 1.15 in (1898) |
| May 28 | 91.9°F (1957) | 28.0°F (1969) | 0.50 in (2008) |
| May 29 | 98.1°F (2001) | 28.0°F (1955) | 0.86 in (1953) |
| May 30 | 96.1°F (1957) | 28.0°F (1898) | 0.55 in (2008) |
| May 31 | 96.1°F (1910) | 30.9°F (1955) | 0.40 in (2008) |