December weather in Ritzville, WA
The average temperature in Ritzville in December is 29.3°F (23.4°F–35.2°F). Average precipitation: 1.80 inches. Average snowfall is 4.2 inches.
December is a winter month in Ritzville, and is cooler than the annual average of 48.7°F. Daily temperatures swing about 11.8°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 8h 19m. For travel, December is cold.
Avg High
35.2°F
Avg Low
23.4°F
Precipitation
1.80 in
Snow
4.2 in
December records in Ritzville
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 55.9°F (1951) | -6.0°F (1985) | 0.79 in (1978) |
| December 2 | 61.0°F (2021) | -5.1°F (1985) | 0.64 in (1999) |
| December 3 | 55.9°F (1918) | 1.9°F (1919) | 0.56 in (1980) |
| December 4 | 55.0°F (1982) | 0.0°F (1972) | 0.35 in (1980) |
| December 5 | 60.1°F (1939) | -4.0°F (1972) | 0.47 in (1971) |
| December 6 | 59.0°F (1939) | 1.0°F (1956) | 0.54 in (1933) |
| December 7 | 55.9°F (1938) | -2.9°F (1956) | 0.74 in (2023) |
| December 8 | 54.0°F (1938) | -9.0°F (1972) | 0.55 in (2004) |
| December 9 | 57.9°F (2015) | -11.0°F (1972) | 0.53 in (1933) |
| December 10 | 53.1°F (1987) | -11.0°F (1972) | 0.70 in (1987) |
| December 11 | 57.9°F (2014) | -9.9°F (1922) | 0.40 in (1958) |
| December 12 | 55.9°F (1921) | -20.9°F (1919) | 0.68 in (1995) |
| December 13 | 54.0°F (1921) | -18.0°F (1919) | 1.86 in (1912) |
| December 14 | 57.9°F (2025) | -15.0°F (1919) | 0.97 in (1977) |
| December 15 | 55.0°F (2002) | -13.0°F (1919) | 1.00 in (1906) |
| December 16 | 57.9°F (2025) | -15.0°F (1964) | 0.56 in (1963) |
| December 17 | 55.0°F (2025) | -18.0°F (1964) | 0.50 in (1926) |
| December 18 | 62.1°F (1917) | -11.0°F (1964) | 5.70 in (2015) |
| December 19 | 57.0°F (1917) | -6.0°F (1924) | 0.58 in (1932) |
| December 20 | 51.1°F (1931) | -6.0°F (2008) | 0.56 in (1992) |
| December 21 | 57.0°F (1933) | -9.0°F (1990) | 0.82 in (1919) |
| December 22 | 57.9°F (1933) | -13.0°F (1990) | 0.56 in (1964) |
| December 23 | 53.1°F (1936) | -13.0°F (1990) | 0.53 in (1936) |
| December 24 | 55.0°F (1950) | -8.0°F (1924) | 0.70 in (1936) |
| December 25 | 48.9°F (2005) | -7.1°F (1924) | 0.40 in (2021) |
| December 26 | 55.9°F (1980) | -4.0°F (1916) | 0.65 in (1917) |
| December 27 | 57.9°F (1980) | -4.0°F (1916) | 0.80 in (1937) |
| December 28 | 53.1°F (1980) | -2.0°F (1996) | 0.52 in (1945) |
| December 29 | 55.0°F (1917) | -13.0°F (1990) | 0.60 in (1912) |
| December 30 | 53.1°F (1949) | -15.0°F (1968) | 0.53 in (1977) |
| December 31 | 50.0°F (1917) | -13.0°F (1968) | 0.52 in (1913) |