Weather on December 18
Billings, MT
55 Years of Data
Avg High
40°F
Avg Low
15°F
Warmest
1979
51°F avg
Coldest
1983
-12°F avg
About This Date
December 18th in Billings, MT typically brings chilly winter weather, with average highs around 40°F and lows near 15°F — a 25°F daily swing. Over 55 years of records, the warmest December 18th was in 1979 (51°F average), while the coldest was 1983 (-12°F) — a 63°F range across recorded history. Precipitation has occurred on 9% of recorded December 18th dates, with snow falling 4% of the time. The last decade has been 3.7°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.7°F cooler on this date compared to 20-30 years ago.
Planning for December 18th in Billings, MT? Bring layers as temperatures can vary throughout the day.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 60° | 25° | 42° | — | — |
| 2024 | 49° | 23° | 36° | — | — |
| 2023 | 50° | 19° | 35° | — | — |
| 2022 | 32° | 7° | 19° | — | — |
| 2021 | 13° | -7° | 3° | — | — |
| 2020 | 42° | 27° | 34° | — | — |
| 2019 | 42° | 30° | 36° | — | — |
| 2018 | 55° | 23° | 39° | — | — |
| 2017 | 38° | 19° | 28° | — | 0.3" |
| 2016 | 8° | -22° | -7° | — | — |
| 2015 | 21° | 2° | 11° | — | — |
| 2014 | 41° | 15° | 28° | — | — |
| 2013 | 47° | 34° | 40° | — | — |
| 2012 | 42° | 27° | 34° | — | — |
| 2011 | 54° | 25° | 39° | — | — |
| 2010 | 20° | 17° | 18° | — | — |
| 2009 | 45° | 14° | 29° | — | 1" |
| 2008 | 28° | 0° | 14° | — | — |
| 2007 | 49° | 18° | 33° | — | — |
| 2006 | 40° | 12° | 26° | — | — |
| 2005 | 15° | -7° | 4° | — | — |
| 2004 | 56° | 25° | 40° | — | — |
| 2003 | 47° | 19° | 33° | — | — |
| 2002 | 47° | 25° | 36° | — | — |
| 2001 | 52° | 21° | 36° | — | — |
| 2000 | 38° | 19° | 28° | — | — |
| 1999 | 49° | 30° | 39° | — | — |
| 1998 | 61° | 11° | 36° | — | — |
| 1997 | 47° | 35° | 41° | — | — |
| 1996 | 19° | -1° | 9° | — | — |
| 1995 | 37° | 18° | 27° | — | — |
| 1994 | 48° | 16° | 32° | — | — |
| 1993 | 38° | 11° | 24° | — | — |
| 1992 | 28° | 7° | 17° | 0.08" | — |
| 1991 | 47° | 14° | 30° | — | — |
| 1990 | 40° | 4° | 22° | 0.38" | — |
| 1989 | 6° | -11° | -2° | — | — |
| 1988 | 57° | 30° | 44° | — | — |
| 1987 | 42° | 11° | 26° | — | — |
| 1986 | 47° | 12° | 29° | — | — |
| 1985 | 42° | 26° | 34° | — | — |
| 1984 | 20° | -13° | 3° | — | — |
| 1983coldest | -2° | -22° | -12° | — | — |
| 1982 | 45° | 35° | 40° | — | — |
| 1981 | 33° | 4° | 18° | — | — |
| 1980 | 38° | 15° | 26° | 0.38" | — |
| 1979warmest | 63° | 39° | 51° | — | — |
| 1978 | 30° | 12° | 21° | — | — |
| 1977 | 39° | 24° | 32° | 0.58" | — |
| 1976 | 58° | 22° | 40° | — | — |
| 1975 | 34° | 15° | 24° | — | — |
| 1974 | 45° | 18° | 31° | — | — |
| 1973 | 41° | 19° | 30° | 1.45" | — |
| 1972 | 49° | 32° | 40° | — | — |
| 1971 | 45° | 25° | 35° | — | — |
55 years of data from BILLINGS WTP