December weather in Streator, IL
The average temperature in Streator in December is 29.7°F (22.2°F–37.2°F). Average precipitation: 2.17 inches. Average snowfall is 6.8 inches.
December is a winter month in Streator, and is cooler than the annual average of 51.7°F. Daily temperatures swing about 15°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 9h 3m. For travel, December is cold.
Avg High
37.2°F
Avg Low
22.2°F
Precipitation
2.17 in
Snow
6.8 in
December records in Streator
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 59.0°F (1901) | -9.0°F (1893) | 1.21 in (1913) |
| December 2 | 64.9°F (1900) | -0.9°F (1942) | 3.57 in (1982) |
| December 3 | 64.0°F (2012) | -7.1°F (1893) | 0.79 in (1938) |
| December 4 | 70.0°F (2012) | -5.1°F (1893) | 1.56 in (1973) |
| December 5 | 63.0°F (2017) | 1.9°F (1895) | 1.33 in (1999) |
| December 6 | 63.0°F (1946) | -5.1°F (1893) | 1.36 in (1906) |
| December 7 | 66.9°F (1916) | 1.0°F (1917) | 1.74 in (1994) |
| December 8 | 64.9°F (1946) | -5.1°F (1902) | 1.06 in (1916) |
| December 9 | 66.9°F (1918) | -5.1°F (1917) | 0.84 in (1991) |
| December 10 | 62.1°F (1911) | -9.0°F (1917) | 1.90 in (1894) |
| December 11 | 57.9°F (1896) | -11.0°F (1917) | 1.00 in (1983) |
| December 12 | 59.0°F (1896) | -2.0°F (1917) | 1.70 in (1972) |
| December 13 | 64.0°F (2015) | -17.0°F (1903) | 0.72 in (1901) |
| December 14 | 66.0°F (2015) | -9.0°F (1901) | 0.88 in (2015) |
| December 15 | 61.0°F (2015) | -16.1°F (1917) | 1.85 in (2011) |
| December 16 | 57.0°F (1918) | -6.0°F (1901) | 1.05 in (1895) |
| December 17 | 60.1°F (1939) | -8.0°F (1903) | 0.45 in (1951) |
| December 18 | 60.1°F (1939) | -8.0°F (1914) | 2.07 in (1895) |
| December 19 | 57.9°F (1918) | -11.9°F (1901) | 1.24 in (1987) |
| December 20 | 54.0°F (1894) | -9.9°F (1901) | 1.98 in (1895) |
| December 21 | 57.9°F (1941) | -2.9°F (1916) | 1.12 in (1949) |
| December 22 | 57.0°F (1904) | -11.0°F (1916) | 1.03 in (1988) |
| December 23 | 57.9°F (1941) | -11.0°F (1916) | 1.50 in (1961) |
| December 24 | 57.9°F (1895) | 0.0°F (1905) | 2.10 in (1965) |
| December 25 | 54.0°F (2019) | -0.9°F (1914) | 3.15 in (2009) |
| December 26 | 57.0°F (2019) | -16.1°F (1914) | 1.63 in (1949) |
| December 27 | 62.1°F (1907) | -16.1°F (1914) | 2.02 in (1936) |
| December 28 | 52.0°F (1912) | -6.0°F (2017) | 1.50 in (1968) |
| December 29 | 55.0°F (1908) | -11.0°F (1917) | 1.75 in (2015) |
| December 30 | 55.0°F (2019) | -15.0°F (1909) | 1.78 in (1971) |
| December 31 | 57.9°F (1896) | -6.0°F (1914) | 1.96 in (1984) |