December weather in Dahlgren, IL
The average temperature in Dahlgren in December is 35.4°F (25.5°F–45.3°F). Average precipitation: 3.50 inches. Average snowfall is 3.4 inches.
December is a winter month in Dahlgren, and is cooler than the annual average of 55.4°F. Daily temperatures swing about 19.8°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 9h 21m. For travel, December is cool.
Avg High
45.3°F
Avg Low
25.5°F
Precipitation
3.50 in
Snow
3.4 in
December records in Dahlgren
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 70.0°F (1941) | 9.0°F (1964) | 1.02 in (1968) |
| December 2 | 72.0°F (1950) | 8.1°F (1929) | 1.59 in (1905) |
| December 3 | 75.0°F (1982) | -4.0°F (1929) | 2.05 in (1982) |
| December 4 | 72.0°F (1998) | 10.0°F (1991) | 2.51 in (1982) |
| December 5 | 72.0°F (2001) | 10.0°F (1991) | 1.32 in (1954) |
| December 6 | 72.0°F (1956) | 6.1°F (1937) | 2.33 in (2021) |
| December 7 | 73.9°F (1916) | 3.9°F (1977) | 2.18 in (1966) |
| December 8 | 69.1°F (1916) | 3.0°F (1917) | 1.58 in (1916) |
| December 9 | 69.1°F (1939) | -9.0°F (1917) | 1.17 in (1923) |
| December 10 | 71.1°F (1918) | -9.9°F (1917) | 2.10 in (1999) |
| December 11 | 73.0°F (1931) | 0.0°F (1917) | 1.46 in (1909) |
| December 12 | 69.1°F (1929) | -6.0°F (1917) | 1.39 in (1940) |
| December 13 | 66.0°F (1927) | -5.1°F (1962) | 3.70 in (1918) |
| December 14 | 66.9°F (1948) | -2.9°F (1898) | 1.17 in (2001) |
| December 15 | 73.0°F (1933) | -14.1°F (1914) | 1.58 in (1902) |
| December 16 | 69.1°F (1948) | -9.9°F (1989) | 2.50 in (2001) |
| December 17 | 69.1°F (1908) | -8.0°F (1989) | 2.02 in (1897) |
| December 18 | 68.0°F (1984) | -2.0°F (1932) | 1.29 in (1929) |
| December 19 | 60.1°F (1939) | -4.0°F (1901) | 1.15 in (1995) |
| December 20 | 73.9°F (1908) | -9.9°F (1901) | 0.99 in (1973) |
| December 21 | 69.1°F (1949) | -9.0°F (1989) | 1.85 in (1920) |
| December 22 | 68.0°F (1949) | -20.0°F (1989) | 1.36 in (1998) |
| December 23 | 70.0°F (1931) | -18.9°F (1989) | 2.30 in (1941) |
| December 24 | 64.9°F (1955) | -18.9°F (1989) | 2.68 in (1932) |
| December 25 | 66.0°F (1922) | -9.9°F (1983) | 1.11 in (1982) |
| December 26 | 73.0°F (1942) | -8.0°F (1983) | 2.20 in (1982) |
| December 27 | 70.0°F (1923) | -4.0°F (1935) | 3.21 in (1922) |
| December 28 | 69.1°F (1928) | -15.0°F (1924) | 1.73 in (1987) |
| December 29 | 69.1°F (1984) | -2.0°F (1924) | 1.68 in (1962) |
| December 30 | 68.0°F (1923) | -8.0°F (1983) | 2.78 in (1932) |
| December 31 | 73.9°F (1951) | 0.0°F (1983) | 0.87 in (1984) |