December weather in Chelsea, IA
The average temperature in Chelsea in December is 25.2°F (16.8°F–33.6°F). Average precipitation: 1.58 inches. Average snowfall is 6.3 inches.
December is a winter month in Chelsea, and is cooler than the annual average of 48.2°F. Daily temperatures swing about 16.8°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 8h 58m. For travel, December is cold.
Avg High
33.6°F
Avg Low
16.8°F
Precipitation
1.58 in
Snow
6.3 in
December records in Chelsea
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 61.0°F (1962) | -9.9°F (1893) | 1.68 in (1945) |
| December 2 | 66.0°F (1962) | -5.1°F (1919) | 1.23 in (2007) |
| December 3 | 63.0°F (1951) | -11.0°F (1919) | 1.35 in (1897) |
| December 4 | 70.0°F (2012) | -8.0°F (2025) | 1.30 in (1973) |
| December 5 | 69.1°F (1998) | -9.9°F (2005) | 1.22 in (1982) |
| December 6 | 66.0°F (2001) | -16.1°F (1917) | 1.08 in (1943) |
| December 7 | 60.1°F (1916) | -15.0°F (1976) | 1.09 in (1994) |
| December 8 | 66.0°F (1946) | -15.0°F (1917) | 0.53 in (1966) |
| December 9 | 62.1°F (1918) | -17.0°F (1958) | 0.88 in (2009) |
| December 10 | 57.9°F (1979) | -25.1°F (1919) | 0.81 in (1911) |
| December 11 | 61.0°F (1949) | -15.0°F (1976) | 1.60 in (1899) |
| December 12 | 57.9°F (1968) | -13.0°F (1932) | 0.90 in (1901) |
| December 13 | 57.9°F (1975) | -18.9°F (1961) | 1.13 in (2015) |
| December 14 | 60.1°F (2015) | -18.9°F (1901) | 1.95 in (2015) |
| December 15 | 57.0°F (1957) | -18.9°F (1901) | 1.40 in (1971) |
| December 16 | 63.0°F (1939) | -16.1°F (1932) | 0.70 in (1904) |
| December 17 | 61.0°F (1939) | -11.0°F (1914) | 1.50 in (1921) |
| December 18 | 57.9°F (1923) | -18.0°F (1985) | 0.73 in (1957) |
| December 19 | 61.0°F (2002) | -29.9°F (1985) | 0.89 in (2008) |
| December 20 | 55.0°F (1967) | -16.1°F (1983) | 2.00 in (1895) |
| December 21 | 57.0°F (1941) | -25.1°F (1985) | 1.38 in (2006) |
| December 22 | 59.0°F (1933) | -18.0°F (1983) | 0.41 in (1959) |
| December 23 | 55.9°F (1965) | -17.0°F (1983) | 0.66 in (2006) |
| December 24 | 55.9°F (1955) | -20.0°F (1983) | 1.26 in (1965) |
| December 25 | 57.0°F (1936) | -20.9°F (2000) | 0.85 in (2009) |
| December 26 | 60.1°F (2019) | -24.0°F (1914) | 1.06 in (1941) |
| December 27 | 57.0°F (1946) | -26.0°F (1935) | 1.60 in (1904) |
| December 28 | 66.9°F (1984) | -25.1°F (1924) | 0.66 in (1966) |
| December 29 | 64.0°F (1984) | -20.9°F (1917) | 0.95 in (2015) |
| December 30 | 60.1°F (1929) | -15.0°F (1909) | 1.05 in (1906) |
| December 31 | 61.0°F (1965) | -17.0°F (1976) | 0.98 in (1931) |