December weather in Monument, OR
The average temperature in Monument in December is 33.2°F (23.4°F–43.0°F). Average precipitation: 1.58 inches.
December is a winter month in Monument, and is cooler than the annual average of 51.5°F. Daily temperatures swing about 19.6°F between overnight low and afternoon high. Daylight averages about 8h 37m. For travel, December is cold.
Avg High
43.0°F
Avg Low
23.4°F
Precipitation
1.58 in
Daylight
8h 37m
December records in Monument
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 64.9°F (2008) | 10.0°F (1969) | 0.82 in (2003) |
| December 2 | 64.0°F (1975) | 8.1°F (1969) | 0.60 in (1992) |
| December 3 | 62.1°F (1975) | 3.0°F (1992) | 0.33 in (1982) |
| December 4 | 64.0°F (2007) | 3.0°F (1992) | 0.37 in (1968) |
| December 5 | 60.1°F (1987) | -4.0°F (2013) | 0.41 in (1971) |
| December 6 | 60.1°F (1981) | 0.0°F (2013) | 0.98 in (1978) |
| December 7 | 62.1°F (1987) | 0.0°F (1972) | 0.49 in (1973) |
| December 8 | 57.9°F (1995) | -18.9°F (1972) | 0.42 in (2003) |
| December 9 | 59.0°F (1993) | -18.9°F (1972) | 0.52 in (1971) |
| December 10 | 70.0°F (1993) | -18.9°F (1972) | 0.38 in (1987) |
| December 11 | 62.1°F (1968) | -15.0°F (1972) | 0.34 in (1990) |
| December 12 | 64.0°F (1995) | -7.1°F (1972) | 0.51 in (1983) |
| December 13 | 64.9°F (2002) | -9.9°F (1972) | 0.61 in (2003) |
| December 14 | 66.0°F (2002) | -7.1°F (1972) | 0.35 in (1983) |
| December 15 | 66.0°F (2002) | -2.9°F (1972) | 0.78 in (1981) |
| December 16 | 55.9°F (1997) | 0.0°F (1967) | 0.30 in (2009) |
| December 17 | 57.0°F (2000) | -9.9°F (1964) | 0.21 in (1962) |
| December 18 | 62.1°F (2012) | -9.9°F (1964) | 0.50 in (1972) |
| December 19 | 57.9°F (1981) | -8.0°F (1984) | 0.49 in (1981) |
| December 20 | 62.1°F (1979) | -15.0°F (1990) | 0.33 in (1963) |
| December 21 | 57.9°F (1969) | -25.1°F (1990) | 0.40 in (1964) |
| December 22 | 64.9°F (1972) | -25.1°F (1990) | 0.27 in (1988) |
| December 23 | 60.1°F (1964) | -16.1°F (1983) | 0.69 in (1964) |
| December 24 | 60.1°F (1980) | -16.1°F (1983) | 0.66 in (1964) |
| December 25 | 60.1°F (1971) | -16.1°F (1983) | 1.07 in (1964) |
| December 26 | 55.9°F (1971) | -9.9°F (1983) | 0.66 in (2006) |
| December 27 | 64.9°F (1980) | -11.0°F (1983) | 0.35 in (1973) |
| December 28 | 60.1°F (1967) | 0.0°F (1985) | 0.74 in (1963) |
| December 29 | 60.1°F (1996) | -22.0°F (1990) | 0.96 in (2003) |
| December 30 | 57.9°F (1965) | -9.9°F (1978) | 0.74 in (1995) |
| December 31 | 62.1°F (1996) | 3.0°F (1985) | 0.39 in (1964) |