December weather in Walnut, IA
The average temperature in Walnut in December is 25.8°F (15.3°F–36.3°F). Average precipitation: 1.50 inches. Average snowfall is 7.7 inches.
December is a winter month in Walnut, and is cooler than the annual average of 49.3°F. Daily temperatures swing about 21°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 9h 1m. For travel, December is cold.
Avg High
36.3°F
Avg Low
15.3°F
Precipitation
1.50 in
Snow
7.7 in
December records in Walnut
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 66.9°F (1998) | -9.9°F (1893) | 1.05 in (2007) |
| December 2 | 63.0°F (1995) | -9.9°F (1985) | 1.01 in (2018) |
| December 3 | 64.9°F (2021) | -13.0°F (1919) | 0.71 in (1933) |
| December 4 | 66.0°F (1998) | -9.0°F (2025) | 1.04 in (2011) |
| December 5 | 66.0°F (2001) | -14.1°F (2005) | 0.63 in (1982) |
| December 6 | 69.1°F (1939) | -11.9°F (2005) | 0.93 in (1913) |
| December 7 | 64.9°F (1894) | -15.0°F (2005) | 0.53 in (1926) |
| December 8 | 66.9°F (1946) | -18.0°F (1917) | 0.34 in (1986) |
| December 9 | 62.1°F (1946) | -17.0°F (1917) | 2.20 in (2009) |
| December 10 | 62.1°F (2020) | -29.0°F (1919) | 1.24 in (1911) |
| December 11 | 64.0°F (1965) | -14.1°F (1917) | 0.80 in (1931) |
| December 12 | 62.1°F (1921) | -20.0°F (1932) | 0.99 in (1991) |
| December 13 | 64.9°F (1921) | -20.0°F (1961) | 1.76 in (2015) |
| December 14 | 59.0°F (1975) | -18.9°F (1901) | 2.47 in (2015) |
| December 15 | 64.0°F (2002) | -18.9°F (1901) | 0.65 in (1974) |
| December 16 | 72.0°F (2021) | -22.0°F (1951) | 0.55 in (1940) |
| December 17 | 64.9°F (1939) | -18.0°F (1951) | 0.35 in (1961) |
| December 18 | 66.0°F (1976) | -27.9°F (1983) | 0.80 in (1968) |
| December 19 | 57.9°F (1966) | -33.0°F (1983) | 0.75 in (2008) |
| December 20 | 61.0°F (1941) | -25.1°F (1901) | 1.04 in (2012) |
| December 21 | 57.9°F (1941) | -22.0°F (1989) | 0.60 in (1984) |
| December 22 | 64.9°F (1933) | -27.0°F (1989) | 0.29 in (2006) |
| December 23 | 62.1°F (1964) | -31.0°F (1989) | 0.49 in (1941) |
| December 24 | 55.0°F (1893) | -23.1°F (1983) | 0.65 in (1984) |
| December 25 | 57.0°F (2023) | -20.0°F (1983) | 1.34 in (2023) |
| December 26 | 60.1°F (2019) | -16.1°F (1914) | 0.57 in (2016) |
| December 27 | 64.9°F (1946) | -20.9°F (1924) | 0.84 in (1959) |
| December 28 | 64.9°F (1984) | -25.1°F (1924) | 1.25 in (1982) |
| December 29 | 60.1°F (1984) | -22.0°F (1917) | 0.60 in (2019) |
| December 30 | 64.0°F (2004) | -22.0°F (1917) | 0.77 in (1936) |
| December 31 | 62.1°F (2010) | -18.9°F (2017) | 1.04 in (1931) |