May weather in Harrisburg, OR
The average temperature in Harrisburg in May is 56.1°F (44.0°F–68.1°F). Average precipitation: 2.46 inches.
May is a spring month in Harrisburg, and is warmer than the annual average of 53.1°F. Daily temperatures swing about 24.1°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 14h 35m. For travel, May is a comfortable month to visit.
Avg High
68.1°F
Avg Low
44.0°F
Precipitation
2.46 in
Daylight
14h 35m
May records in Harrisburg
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 88.0°F (1947) | 28.0°F (1954) | 1.47 in (1949) |
| May 2 | 87.1°F (1946) | 30.9°F (1952) | 0.74 in (1975) |
| May 3 | 82.9°F (1944) | 30.9°F (1964) | 1.31 in (2024) |
| May 4 | 84.9°F (2017) | 30.9°F (1996) | 0.80 in (2009) |
| May 5 | 86.0°F (1953) | 30.9°F (1978) | 1.57 in (1963) |
| May 6 | 84.9°F (1987) | 30.9°F (1984) | 1.38 in (1963) |
| May 7 | 90.0°F (1987) | 33.1°F (2002) | 1.26 in (1991) |
| May 8 | 93.0°F (1987) | 30.9°F (2002) | 0.47 in (2004) |
| May 9 | 87.1°F (1987) | 32.0°F (1948) | 0.78 in (1967) |
| May 10 | 84.9°F (1987) | 32.0°F (2001) | 0.67 in (1961) |
| May 11 | 88.0°F (2024) | 28.9°F (1985) | 0.51 in (1978) |
| May 12 | 86.0°F (1949) | 30.0°F (1985) | 0.70 in (1945) |
| May 13 | 89.1°F (1939) | 34.0°F (1958) | 0.98 in (1969) |
| May 14 | 93.9°F (2023) | 34.0°F (1947) | 0.82 in (2016) |
| May 15 | 89.1°F (2023) | 33.1°F (1952) | 0.62 in (1994) |
| May 16 | 89.1°F (2008) | 32.0°F (1980) | 1.94 in (1972) |
| May 17 | 95.0°F (2008) | 33.1°F (1976) | 1.16 in (1991) |
| May 18 | 84.9°F (1963) | 32.0°F (2003) | 0.75 in (1991) |
| May 19 | 86.0°F (1963) | 33.1°F (1982) | 0.73 in (2002) |
| May 20 | 91.0°F (1963) | 33.1°F (1975) | 0.58 in (2002) |
| May 21 | 87.1°F (1988) | 34.0°F (1978) | 1.03 in (1939) |
| May 22 | 90.0°F (2001) | 32.0°F (2007) | 0.73 in (1984) |
| May 23 | 91.0°F (1947) | 34.0°F (1978) | 1.17 in (1989) |
| May 24 | 88.0°F (1992) | 33.1°F (1977) | 1.21 in (2012) |
| May 25 | 89.1°F (1947) | 34.0°F (1973) | 0.86 in (1960) |
| May 26 | 87.1°F (1950) | 33.1°F (1973) | 0.80 in (1953) |
| May 27 | 87.1°F (1952) | 34.0°F (1955) | 0.53 in (1948) |
| May 28 | 91.9°F (1983) | 32.0°F (2007) | 0.59 in (1993) |
| May 29 | 86.0°F (1995) | 30.9°F (2001) | 1.05 in (1998) |
| May 30 | 87.1°F (1986) | 35.1°F (1979) | 0.74 in (1993) |
| May 31 | 90.0°F (1986) | 32.0°F (1955) | 1.20 in (1997) |