December weather in Sandy, OR
The average temperature in Sandy in December is 39.1°F (35.1°F–43.1°F). Average precipitation: 11.67 inches. Average snowfall is 0.6 inches.
December is a winter month in Sandy, and is cooler than the annual average of 51.4°F. Daily temperatures swing about 8°F between overnight low and afternoon high. Expect about 23 days with precipitation. Daylight averages about 8h 32m. For travel, December is a wet month.
Avg High
43.1°F
Avg Low
35.1°F
Precipitation
11.67 in
Snow
0.6 in
December records in Sandy
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 61.0°F (1926) | 19.9°F (1985) | 3.00 in (2013) |
| December 2 | 60.1°F (1958) | 21.9°F (1985) | 3.94 in (1941) |
| December 3 | 60.1°F (1958) | 26.1°F (1903) | 3.22 in (1987) |
| December 4 | 60.1°F (1945) | 19.9°F (1972) | 3.13 in (1978) |
| December 5 | 57.0°F (1989) | 17.1°F (1972) | 2.45 in (2025) |
| December 6 | 55.0°F (1933) | 18.0°F (1972) | 6.70 in (1933) |
| December 7 | 57.9°F (1958) | 9.0°F (1972) | 3.46 in (2015) |
| December 8 | 62.1°F (1962) | 5.0°F (1972) | 2.20 in (1929) |
| December 9 | 57.9°F (1987) | 12.0°F (1932) | 2.90 in (2025) |
| December 10 | 59.0°F (1993) | 9.0°F (1932) | 2.32 in (1948) |
| December 11 | 57.9°F (2025) | 9.0°F (1919) | 3.42 in (1946) |
| December 12 | 57.9°F (1921) | 12.0°F (1932) | 2.73 in (1946) |
| December 13 | 57.9°F (1977) | 17.1°F (1922) | 3.30 in (1977) |
| December 14 | 63.0°F (1977) | 15.1°F (1922) | 2.18 in (1946) |
| December 15 | 60.1°F (1976) | 10.9°F (1919) | 1.59 in (2009) |
| December 16 | 60.1°F (1980) | 9.0°F (1964) | 2.04 in (1999) |
| December 17 | 55.0°F (1917) | 5.0°F (1924) | 2.50 in (2015) |
| December 18 | 59.0°F (1917) | 6.1°F (1924) | 3.67 in (2025) |
| December 19 | 55.0°F (1941) | 10.0°F (1924) | 3.62 in (1917) |
| December 20 | 57.0°F (1934) | 8.1°F (1990) | 3.51 in (1933) |
| December 21 | 60.1°F (1940) | 5.0°F (1990) | 3.30 in (1915) |
| December 22 | 60.1°F (1940) | 8.1°F (1990) | 2.82 in (1933) |
| December 23 | 57.9°F (1910) | 10.9°F (1983) | 2.16 in (1936) |
| December 24 | 55.0°F (2005) | 12.0°F (1983) | 2.05 in (1964) |
| December 25 | 59.0°F (1980) | 12.9°F (1924) | 2.09 in (1980) |
| December 26 | 59.0°F (1980) | 3.9°F (1986) | 2.23 in (1996) |
| December 27 | 63.0°F (1980) | 10.9°F (1924) | 3.30 in (1937) |
| December 28 | 57.9°F (1937) | 19.9°F (1990) | 2.14 in (1917) |
| December 29 | 60.1°F (1917) | 10.0°F (1990) | 4.20 in (1937) |
| December 30 | 60.1°F (1963) | 8.1°F (1968) | 3.63 in (2005) |
| December 31 | 57.0°F (1917) | 8.1°F (1968) | 1.57 in (1942) |