December weather in Rockwell City, IA
The average temperature in Rockwell City in December is 23.4°F (14.8°F–32.0°F). Average precipitation: 1.34 inches. Average snowfall is 7.3 inches.
December is a winter month in Rockwell City, and is cooler than the annual average of 47.2°F. Daily temperatures swing about 17.2°F between overnight low and afternoon high. Expect about 5 days with precipitation. Daylight averages about 8h 54m. For travel, December is cold.
Avg High
32.0°F
Avg Low
14.8°F
Precipitation
1.34 in
Snow
7.3 in
December records in Rockwell City
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 61.0°F (1962) | -4.0°F (1897) | 0.93 in (1945) |
| December 2 | 68.0°F (1998) | -11.0°F (1919) | 1.04 in (2007) |
| December 3 | 61.0°F (1962) | -9.9°F (1919) | 1.40 in (1897) |
| December 4 | 61.0°F (1998) | -5.1°F (1898) | 0.60 in (2011) |
| December 5 | 64.0°F (2017) | -9.9°F (2025) | 0.86 in (1948) |
| December 6 | 64.0°F (1939) | -14.1°F (1972) | 1.10 in (1913) |
| December 7 | 60.1°F (1894) | -14.1°F (1972) | 0.76 in (1967) |
| December 8 | 66.0°F (1946) | -18.0°F (1917) | 0.32 in (1995) |
| December 9 | 61.0°F (1939) | -14.1°F (1972) | 0.70 in (1899) |
| December 10 | 60.1°F (1979) | -22.0°F (1919) | 2.25 in (1911) |
| December 11 | 62.1°F (1965) | -16.1°F (1917) | 0.82 in (1965) |
| December 12 | 62.1°F (1968) | -20.0°F (1932) | 1.10 in (1991) |
| December 13 | 54.0°F (1998) | -24.0°F (1917) | 1.07 in (2015) |
| December 14 | 52.0°F (1894) | -20.0°F (1901) | 2.43 in (2015) |
| December 15 | 64.0°F (1923) | -17.0°F (1989) | 1.10 in (1894) |
| December 16 | 70.0°F (2021) | -20.0°F (1932) | 0.45 in (1940) |
| December 17 | 64.0°F (1939) | -24.0°F (1897) | 0.60 in (1990) |
| December 18 | 60.1°F (1962) | -22.0°F (1983) | 0.35 in (2000) |
| December 19 | 54.0°F (1979) | -20.9°F (1983) | 0.77 in (1968) |
| December 20 | 54.0°F (1933) | -22.0°F (1983) | 2.10 in (1902) |
| December 21 | 55.9°F (1941) | -23.1°F (1989) | 0.75 in (1920) |
| December 22 | 55.9°F (1941) | -25.1°F (1989) | 0.75 in (1941) |
| December 23 | 50.0°F (1899) | -23.1°F (1989) | 0.55 in (1961) |
| December 24 | 55.0°F (1908) | -23.1°F (1983) | 0.70 in (1909) |
| December 25 | 54.0°F (1946) | -18.9°F (1983) | 0.50 in (1973) |
| December 26 | 57.0°F (1936) | -20.0°F (1914) | 0.65 in (2016) |
| December 27 | 54.0°F (1958) | -18.0°F (1924) | 1.22 in (2018) |
| December 28 | 59.0°F (1984) | -24.0°F (1924) | 1.28 in (1959) |
| December 29 | 57.0°F (2002) | -32.1°F (1917) | 0.80 in (1907) |
| December 30 | 55.0°F (1929) | -14.1°F (1976) | 1.85 in (1931) |
| December 31 | 60.1°F (2004) | -20.0°F (1898) | 1.01 in (2006) |