December weather in Glasgow, MT
The average temperature in Glasgow in December is 18.1°F (8.3°F–27.9°F). Average precipitation: inches.
December is a winter month in Glasgow, and is cooler than the annual average of 44.2°F. Daily temperatures swing about 19.6°F between overnight low and afternoon high. Daylight averages about 8h 9m. For travel, December is cold.
Avg High
27.9°F
Avg Low
8.3°F
Precipitation
in
Daylight
8h 9m
December records in Glasgow
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 66.0°F (2021) | -40.0°F (1897) | 0.14 in (1918) |
| December 2 | 59.0°F (1939) | -35.0°F (1897) | 0.28 in (1927) |
| December 3 | 69.1°F (1939) | -27.0°F (1897) | 0.34 in (1926) |
| December 4 | 57.0°F (1916) | -36.0°F (1928) | 0.20 in (1948) |
| December 5 | 57.0°F (1939) | -27.9°F (1922) | 0.52 in (1927) |
| December 6 | 63.0°F (2023) | -33.0°F (1936) | 0.14 in (1927) |
| December 7 | 59.0°F (1939) | -36.0°F (1927) | 0.29 in (1945) |
| December 8 | 69.1°F (1939) | -45.0°F (1927) | 0.50 in (1894) |
| December 9 | 57.0°F (2017) | -33.0°F (1919) | 0.80 in (1906) |
| December 10 | 51.1°F (1921) | -36.9°F (1927) | 0.60 in (1904) |
| December 11 | 59.0°F (2004) | -33.0°F (1927) | 0.37 in (1931) |
| December 12 | 57.0°F (1924) | -41.1°F (1922) | 0.15 in (1933) |
| December 13 | 54.0°F (2023) | -43.1°F (1922) | 0.44 in (1924) |
| December 14 | 53.1°F (1939) | -36.9°F (1922) | 0.25 in (1917) |
| December 15 | 55.9°F (1923) | -38.9°F (1927) | 0.32 in (1915) |
| December 16 | 62.1°F (1939) | -29.0°F (1914) | 0.53 in (1929) |
| December 17 | 55.0°F (1939) | -43.1°F (1922) | 0.81 in (1939) |
| December 18 | 55.0°F (1954) | -47.0°F (1929) | 0.25 in (1901) |
| December 19 | 57.0°F (1941) | -47.0°F (1924) | 0.14 in (1928) |
| December 20 | 53.1°F (1941) | -38.0°F (1929) | 0.21 in (1953) |
| December 21 | 57.0°F (1954) | -38.9°F (1924) | 0.14 in (1900) |
| December 22 | 59.0°F (1954) | -38.0°F (1916) | 0.60 in (1904) |
| December 23 | 51.1°F (1928) | -34.1°F (2022) | 0.21 in (1899) |
| December 24 | 52.0°F (1940) | -29.0°F (1917) | 0.31 in (1949) |
| December 25 | 52.0°F (1947) | -31.0°F (1917) | 0.20 in (1895) |
| December 26 | 57.0°F (1947) | -33.0°F (1933) | 0.28 in (1915) |
| December 27 | 48.0°F (1999) | -42.0°F (1925) | 0.30 in (1895) |
| December 28 | 54.0°F (1999) | -27.0°F (1916) | 0.30 in (1917) |
| December 29 | 51.1°F (1901) | -35.0°F (1916) | 0.25 in (1900) |
| December 30 | 48.9°F (1929) | -35.0°F (1916) | 0.24 in (1931) |
| December 31 | 46.0°F (1920) | -36.0°F (1918) | 0.30 in (1895) |