December weather in Waterloo, OR
The average temperature in Waterloo in December is °F (°F–°F). Average precipitation: 7.29 inches.
December is a winter month in Waterloo, and is cooler than the annual average of 0°F. Expect about 16 days with precipitation. Daylight averages about 8h 39m.
Avg High
°F
Avg Low
°F
Precipitation
7.29 in
Daylight
8h 39m
December records in Waterloo
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | — | — | 1.40 in (1948) |
| December 2 | — | — | 1.80 in (2001) |
| December 3 | — | — | 2.12 in (1980) |
| December 4 | — | — | 2.28 in (1980) |
| December 5 | — | — | 1.61 in (1951) |
| December 6 | — | — | 2.97 in (1981) |
| December 7 | — | — | 1.76 in (1973) |
| December 8 | — | — | 1.94 in (1923) |
| December 9 | — | — | 0.84 in (1971) |
| December 10 | — | — | 1.85 in (1928) |
| December 11 | — | — | 1.41 in (1948) |
| December 12 | — | — | 1.48 in (1935) |
| December 13 | — | — | 1.85 in (2003) |
| December 14 | — | — | 2.50 in (1929) |
| December 15 | — | — | 1.74 in (1981) |
| December 16 | — | — | 1.90 in (1982) |
| December 17 | — | — | 1.30 in (1972) |
| December 18 | — | — | 1.85 in (1929) |
| December 19 | — | — | 1.64 in (1955) |
| December 20 | — | — | 2.80 in (1957) |
| December 21 | — | — | 2.40 in (1955) |
| December 22 | — | — | 1.92 in (1964) |
| December 23 | — | — | 1.23 in (1964) |
| December 24 | — | — | 1.82 in (2007) |
| December 25 | — | — | 1.56 in (1980) |
| December 26 | — | — | 2.49 in (1996) |
| December 27 | — | — | 2.15 in (1974) |
| December 28 | — | — | 3.05 in (1998) |
| December 29 | — | — | 1.97 in (2003) |
| December 30 | — | — | 2.17 in (2011) |
| December 31 | — | — | 1.73 in (2002) |