December weather in Irwin, IA
The average temperature in Irwin in December is 25.8°F (15.7°F–35.9°F). Average precipitation: 1.31 inches. Average snowfall is 6.7 inches.
December is a winter month in Irwin, and is cooler than the annual average of 49.5°F. Daily temperatures swing about 20.2°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 8h 59m. For travel, December is cold.
Avg High
35.9°F
Avg Low
15.7°F
Precipitation
1.31 in
Snow
6.7 in
December records in Irwin
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 66.0°F (1998) | -8.0°F (1944) | 0.60 in (1933) |
| December 2 | 63.0°F (1973) | -4.0°F (1905) | 1.12 in (2007) |
| December 3 | 60.1°F (1951) | -17.0°F (1919) | 0.74 in (1953) |
| December 4 | 66.0°F (1998) | -7.1°F (1902) | 0.68 in (1973) |
| December 5 | 66.9°F (1975) | -6.0°F (1928) | 0.41 in (1948) |
| December 6 | 68.0°F (1939) | -9.9°F (1972) | 1.23 in (1913) |
| December 7 | 59.0°F (1984) | -14.1°F (1908) | 0.46 in (1994) |
| December 8 | 66.0°F (1946) | -18.0°F (1917) | 0.53 in (1995) |
| December 9 | 62.1°F (1939) | -22.0°F (1919) | 1.20 in (2009) |
| December 10 | 57.9°F (1979) | -27.0°F (1919) | 1.88 in (1911) |
| December 11 | 63.0°F (1965) | -13.0°F (1917) | 0.86 in (1965) |
| December 12 | 63.0°F (1921) | -20.0°F (1932) | 1.10 in (1991) |
| December 13 | 64.9°F (1921) | -20.0°F (1917) | 1.10 in (2015) |
| December 14 | 57.0°F (1975) | -22.0°F (1901) | 2.17 in (2015) |
| December 15 | 57.9°F (1939) | -22.0°F (1901) | 0.87 in (1984) |
| December 16 | 61.0°F (2002) | -23.1°F (1932) | 0.57 in (1984) |
| December 17 | 64.0°F (1939) | -11.0°F (1964) | 0.37 in (1990) |
| December 18 | 62.1°F (1976) | -17.0°F (1983) | 0.94 in (1968) |
| December 19 | 55.9°F (1979) | -25.1°F (1983) | 0.62 in (2008) |
| December 20 | 57.9°F (1967) | -20.0°F (1901) | 0.72 in (1914) |
| December 21 | 55.9°F (1941) | -22.0°F (1989) | 1.04 in (2006) |
| December 22 | 63.0°F (1933) | -25.1°F (1989) | 0.50 in (1941) |
| December 23 | 55.0°F (1950) | -26.0°F (1989) | 1.19 in (1941) |
| December 24 | 54.0°F (1922) | -20.0°F (1983) | 0.69 in (1973) |
| December 25 | 52.0°F (1936) | -16.1°F (1983) | 0.75 in (2009) |
| December 26 | 57.9°F (1936) | -15.0°F (1914) | 0.70 in (1916) |
| December 27 | 57.9°F (1946) | -15.0°F (1924) | 0.95 in (1959) |
| December 28 | 63.0°F (1984) | -22.0°F (1924) | 1.11 in (1982) |
| December 29 | 57.9°F (1984) | -25.1°F (1917) | 0.62 in (1972) |
| December 30 | 60.1°F (1929) | -13.0°F (1914) | 0.44 in (1906) |
| December 31 | 63.0°F (2004) | -18.9°F (1968) | 1.13 in (1931) |