December weather in Swaledale, IA
The average temperature in Swaledale in December is 21.6°F (13.5°F–29.7°F). Average precipitation: 1.29 inches. Average snowfall is 9.4 inches.
December is a winter month in Swaledale, and is cooler than the annual average of 45.6°F. Daily temperatures swing about 16.2°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 8h 50m. For travel, December is cold.
Avg High
29.7°F
Avg Low
13.5°F
Precipitation
1.29 in
Snow
9.4 in
December records in Swaledale
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 66.9°F (1998) | -2.0°F (1983) | 1.34 in (2007) |
| December 2 | 64.0°F (1998) | -14.1°F (1985) | 0.40 in (1990) |
| December 3 | 63.0°F (2012) | -15.0°F (1985) | 0.71 in (1953) |
| December 4 | 66.0°F (2017) | -13.0°F (2025) | 0.37 in (1960) |
| December 5 | 62.1°F (2001) | -7.1°F (2005) | 1.38 in (1982) |
| December 6 | 53.1°F (1951) | -15.0°F (1976) | 0.65 in (1969) |
| December 7 | 57.0°F (2024) | -18.0°F (1972) | 0.48 in (1969) |
| December 8 | 57.9°F (2024) | -16.1°F (1958) | 0.51 in (2009) |
| December 9 | 54.0°F (2020) | -18.9°F (1958) | 0.39 in (2009) |
| December 10 | 59.0°F (1979) | -16.1°F (1978) | 0.89 in (1970) |
| December 11 | 55.0°F (1949) | -11.0°F (1976) | 1.56 in (1965) |
| December 12 | 57.9°F (1968) | -16.1°F (2000) | 1.12 in (1991) |
| December 13 | 55.9°F (1998) | -20.9°F (1961) | 0.80 in (2015) |
| December 14 | 55.0°F (1998) | -16.1°F (1972) | 1.18 in (2015) |
| December 15 | 69.1°F (2021) | -16.1°F (1963) | 0.80 in (2012) |
| December 16 | 57.9°F (1959) | -17.0°F (1963) | 0.32 in (2016) |
| December 17 | 50.0°F (1962) | -18.0°F (1983) | 0.50 in (1977) |
| December 18 | 55.0°F (1962) | -26.0°F (1983) | 0.99 in (1968) |
| December 19 | 48.0°F (1979) | -26.0°F (1983) | 0.24 in (1968) |
| December 20 | 48.0°F (1967) | -25.1°F (1983) | 0.45 in (2006) |
| December 21 | 50.0°F (1979) | -23.1°F (1989) | 0.58 in (1984) |
| December 22 | 48.0°F (2023) | -22.0°F (1983) | 0.31 in (1952) |
| December 23 | 46.0°F (1965) | -25.1°F (1990) | 0.56 in (2015) |
| December 24 | 53.1°F (2023) | -24.0°F (1983) | 0.60 in (2009) |
| December 25 | 51.1°F (2023) | -20.9°F (2000) | 0.76 in (2009) |
| December 26 | 48.9°F (1959) | -26.0°F (1950) | 0.52 in (1988) |
| December 27 | 52.0°F (1959) | -26.0°F (1950) | 1.60 in (1982) |
| December 28 | 55.9°F (1984) | -20.9°F (1993) | 0.74 in (2019) |
| December 29 | 46.9°F (1999) | -13.0°F (1970) | 0.65 in (1972) |
| December 30 | 54.0°F (1965) | -20.0°F (1968) | 0.55 in (1968) |
| December 31 | 52.0°F (1965) | -22.0°F (1976) | 1.33 in (2006) |