December weather in Harrisburg, OR
The average temperature in Harrisburg in December is 40.6°F (34.3°F–46.8°F). Average precipitation: 7.21 inches.
December is a winter month in Harrisburg, and is cooler than the annual average of 53.1°F. Daily temperatures swing about 12.5°F between overnight low and afternoon high. Expect about 19 days with precipitation. Daylight averages about 8h 41m. For travel, December is a wet month.
Avg High
46.8°F
Avg Low
34.3°F
Precipitation
7.21 in
Daylight
8h 41m
December records in Harrisburg
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 66.0°F (2021) | 21.0°F (1985) | 2.09 in (1987) |
| December 2 | 66.9°F (1958) | 21.9°F (1985) | 4.48 in (1980) |
| December 3 | 64.9°F (1939) | 21.0°F (2009) | 3.14 in (1987) |
| December 4 | 66.0°F (1989) | 18.1°F (2013) | 2.89 in (1968) |
| December 5 | 64.0°F (2023) | 14.2°F (2013) | 4.89 in (1981) |
| December 6 | 61.0°F (1962) | 15.1°F (1972) | 1.96 in (1983) |
| December 7 | 66.9°F (1938) | -6.9°F (2013) | 1.80 in (1993) |
| December 8 | 62.1°F (2015) | -11.9°F (1972) | 1.80 in (1992) |
| December 9 | 62.1°F (2014) | -5.1°F (1972) | 2.71 in (1987) |
| December 10 | 64.0°F (1993) | -7.1°F (1972) | 3.07 in (1993) |
| December 11 | 62.1°F (1955) | -5.1°F (1972) | 2.57 in (1969) |
| December 12 | 64.9°F (1952) | 11.1°F (2013) | 2.06 in (1995) |
| December 13 | 64.0°F (1969) | 15.1°F (1940) | 2.68 in (2003) |
| December 14 | 60.1°F (2002) | 9.0°F (1972) | 2.22 in (1981) |
| December 15 | 64.9°F (1941) | 16.0°F (1940) | 3.02 in (1982) |
| December 16 | 61.0°F (1974) | 10.0°F (2008) | 1.58 in (1977) |
| December 17 | 68.0°F (1979) | 10.0°F (1964) | 1.65 in (2015) |
| December 18 | 62.1°F (2024) | 19.0°F (1948) | 2.75 in (2025) |
| December 19 | 64.0°F (1940) | 15.1°F (1990) | 3.24 in (1957) |
| December 20 | 64.0°F (1994) | 8.1°F (1990) | 3.02 in (1955) |
| December 21 | 62.1°F (1955) | 6.1°F (1990) | 3.25 in (1964) |
| December 22 | 62.1°F (1964) | 3.9°F (1990) | 3.25 in (1964) |
| December 23 | 64.0°F (1950) | 10.0°F (1983) | 2.08 in (1964) |
| December 24 | 60.1°F (2005) | 9.0°F (1990) | 2.42 in (1980) |
| December 25 | 63.0°F (2022) | 15.1°F (1990) | 2.59 in (1955) |
| December 26 | 60.1°F (1980) | 18.0°F (1948) | 1.61 in (1955) |
| December 27 | 61.0°F (1994) | 18.0°F (1985) | 2.25 in (1998) |
| December 28 | 57.9°F (1945) | 19.0°F (1985) | 2.38 in (2011) |
| December 29 | 60.1°F (1950) | 12.0°F (1978) | 1.23 in (1996) |
| December 30 | 66.0°F (1980) | 10.0°F (1978) | 2.45 in (2005) |
| December 31 | 62.1°F (1996) | 10.0°F (1978) | 1.50 in (1942) |