December weather in Altoona, IA
The average temperature in Altoona in December is 26.3°F (18.0°F–34.7°F). Average precipitation: 1.39 inches. Average snowfall is 4.5 inches.
December is a winter month in Altoona, and is cooler than the annual average of 49.5°F. Daily temperatures swing about 16.7°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 8h 60m. For travel, December is cold.
Avg High
34.7°F
Avg Low
18.0°F
Precipitation
1.39 in
Snow
4.5 in
December records in Altoona
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 64.9°F (1962) | 1.9°F (1976) | 0.85 in (1985) |
| December 2 | 63.0°F (1998) | -2.9°F (1985) | 1.03 in (2007) |
| December 3 | 66.0°F (1973) | -5.1°F (1985) | 0.50 in (2011) |
| December 4 | 66.9°F (2012) | -2.0°F (1991) | 0.90 in (2011) |
| December 5 | 69.1°F (2017) | -2.0°F (1964) | 1.19 in (1982) |
| December 6 | 66.0°F (2001) | -8.0°F (1972) | 0.33 in (2004) |
| December 7 | 61.0°F (1984) | -11.9°F (1976) | 1.00 in (1994) |
| December 8 | 53.1°F (1984) | -9.9°F (1958) | 0.26 in (1987) |
| December 9 | 54.0°F (1970) | -13.0°F (1958) | 0.27 in (2008) |
| December 10 | 60.1°F (1979) | -6.0°F (1995) | 0.55 in (1964) |
| December 11 | 62.1°F (2020) | -11.0°F (1994) | 0.82 in (1965) |
| December 12 | 60.1°F (1965) | -11.9°F (1989) | 0.56 in (1972) |
| December 13 | 64.0°F (1968) | -15.0°F (1961) | 0.77 in (1968) |
| December 14 | 59.0°F (1975) | -14.1°F (1972) | 2.48 in (2015) |
| December 15 | 59.0°F (2006) | -14.1°F (1989) | 0.48 in (1987) |
| December 16 | 57.9°F (2002) | -15.0°F (1951) | 0.23 in (2014) |
| December 17 | 57.0°F (2006) | -13.0°F (1983) | 0.30 in (1985) |
| December 18 | 55.9°F (1962) | -18.9°F (1983) | 0.18 in (1957) |
| December 19 | 63.0°F (1976) | -20.9°F (1983) | 1.13 in (1968) |
| December 20 | 52.0°F (1988) | -20.0°F (1983) | 1.06 in (2012) |
| December 21 | 57.9°F (1967) | -20.0°F (1989) | 0.88 in (2006) |
| December 22 | 55.9°F (1958) | -22.0°F (1989) | 0.39 in (1961) |
| December 23 | 57.0°F (1964) | -25.1°F (1989) | 0.43 in (2014) |
| December 24 | 54.0°F (1982) | -25.1°F (1989) | 0.84 in (1973) |
| December 25 | 53.1°F (1982) | -20.9°F (1983) | 0.87 in (2009) |
| December 26 | 60.1°F (2019) | -14.1°F (1962) | 0.38 in (1984) |
| December 27 | 55.9°F (1958) | -13.0°F (1951) | 0.64 in (1959) |
| December 28 | 70.0°F (1984) | -11.0°F (1961) | 1.06 in (1982) |
| December 29 | 63.0°F (1984) | -9.9°F (1983) | 0.91 in (2019) |
| December 30 | 61.0°F (1965) | -9.9°F (1976) | 0.74 in (2020) |
| December 31 | 62.1°F (2004) | -16.1°F (1998) | 0.75 in (1994) |