Weather on December 9
West Yellowstone, MT
55 Years of Data
About This Date
December 9th in West Yellowstone, MT typically brings very cold winter weather, with average highs around 20°F and lows near 5°F. Over 55 years of records, the warmest December 9th was in 1975 (34°F average), while the coldest was 1972 (-16°F) — a 50°F range across recorded history. Precipitation has occurred on 47% of recorded December 9th dates, with snow falling 7% of the time (heaviest snowfall: 17"). Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for December 9th in West Yellowstone, MT? Bundle up with warm layers and protect extremities from the cold. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 31° | 20° | 25° | 0.51" | — |
| 2024 | 14° | 6° | 10° | 0.25" | — |
| 2023 | 12° | 0° | 6° | 0.25" | — |
| 2022 | 17° | 6° | 11° | 0.76" | — |
| 2021 | 19° | 0° | 10° | — | — |
| 2020 | 33° | 19° | 26° | — | — |
| 2019 | 17° | 4° | 10° | — | — |
| 2018 | 22° | 3° | 13° | — | — |
| 2017 | 39° | 20° | 30° | — | — |
| 2016 | 20° | 5° | 13° | 0.76" | — |
| 2015 | 29° | 16° | 22° | 0.25" | — |
| 2014 | 34° | 20° | 27° | — | — |
| 2013 | -6° | -17° | -12° | 0.25" | — |
| 2012 | 8° | -9° | 0° | 0.25" | — |
| 2011 | 24° | 6° | 15° | — | — |
| 2010 | 27° | 17° | 22° | — | — |
| 2009 | -3° | -15° | -9° | — | — |
| 2008 | 17° | 2° | 9° | — | — |
| 2007 | 15° | 0° | 7° | — | — |
| 2006 | 29° | 16° | 22° | — | — |
| 2005 | 31° | 5° | 18° | 0.76" | — |
| 2004 | 23° | 12° | 17° | 0.25" | — |
| 2003 | 13° | 1° | 7° | 0.25" | — |
| 2002 | 34° | 19° | 27° | — | — |
| 2001 | 24° | 8° | 16° | — | — |
| 2000 | 18° | 10° | 14° | — | — |
| 1999 | 14° | 4° | 9° | 0.51" | — |
| 1998 | 17° | -5° | 6° | — | — |
| 1997 | 14° | -2° | 6° | — | — |
| 1996 | 27° | 25° | 26° | 1.78" | — |
| 1995 | 23° | 0° | 12° | — | — |
| 1994 | 6° | -5° | 1° | 0.25" | — |
| 1993 | 21° | 12° | 17° | — | — |
| 1992 | 17° | 1° | 9° | 1.27" | — |
| 1991 | 16° | 11° | 14° | 0.25" | — |
| 1990 | 36° | 19° | 28° | — | — |
| 1989 | 17° | 4° | 10° | 0.76" | — |
| 1988 | 27° | 12° | 19° | — | — |
| 1987 | 22° | 9° | 16° | 1.02" | — |
| 1986 | 12° | -10° | 1° | 0.25" | — |
| 1985 | 14° | -6° | 4° | 0.25" | — |
| 1984 | 21° | 11° | 16° | 0.76" | — |
| 1983 | 23° | 12° | 17° | 2.03" | — |
| 1982 | 5° | -18° | -6° | — | — |
| 1981 | 33° | 18° | 25° | — | — |
| 1980 | 11° | -4° | 3° | — | — |
| 1979 | 39° | 18° | 28° | — | — |
| 1978 | 10° | -13° | -1° | 0.48" | 6" |
| 1977 | 21° | 3° | 12° | 0.25" | 1" |
| 1976 | 32° | 24° | 28° | 0.58" | 2" |
| 1975warmest | 36° | 32° | 34° | — | — |
| 1974 | 28° | -8° | 10° | — | — |
| 1973 | 18° | 0° | 9° | — | — |
| 1972coldest | -4° | -28° | -16° | — | — |
| 1971 | 18° | -4° | 7° | 2.06" | 17" |
West Yellowstone, MT Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
West Yellowstone, MT Monthly Precipitation
Average rainfall and snowfall per month, in inches.
West Yellowstone, MT Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit West Yellowstone, MT
West Yellowstone, MT has no months that meet our "pleasant" threshold — every season has tradeoffs.