Weather on December 15
Jackson, WY
55 Years of Data
About This Date
December 15th in Jackson, WY typically brings very cold winter weather, with average highs around 30°F and lows near 8°F. Over 55 years of records, the warmest December 15th was in 2006 (38°F average), while the coldest was 1972 (-19°F) — a 57°F range across recorded history. Precipitation has occurred on 42% of recorded December 15th dates, with snow falling 38% of the time (heaviest snowfall: 8"). The last decade has been 7.6°F cooler on this date compared to 20-30 years ago.
The last decade has been 7.6°F cooler on this date compared to 20-30 years ago.
Planning for December 15th in Jackson, WY? Bundle up with warm layers and protect extremities from the cold. Consider bringing rain gear or an umbrella. Check road conditions if traveling, as snow is possible.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 38° | 10° | 24° | — | — |
| 2024 | 33° | 28° | 31° | 1.02" | 8" |
| 2023 | 26° | 7° | 16° | — | — |
| 2022 | 23° | -1° | 11° | 0.13" | 0.5" |
| 2021 | 39° | 20° | 29° | 0.71" | 3.1" |
| 2020 | 20° | -7° | 6° | — | — |
| 2019 | 25° | -11° | 7° | 0.03" | 0.3" |
| 2018 | 35° | -4° | 16° | — | — |
| 2017 | 30° | 3° | 17° | — | — |
| 2016 | 39° | 9° | 24° | 0.89" | 2.5" |
| 2015 | 28° | 15° | 22° | 0.3" | 2" |
| 2014 | 28° | 16° | 22° | 0.25" | 1" |
| 2013 | 30° | 7° | 18° | — | — |
| 2012 | 32° | 18° | 25° | 0.2" | 0.8" |
| 2011 | 25° | 1° | 13° | — | — |
| 2010 | 38° | 15° | 26° | 0.48" | 0.5" |
| 2009 | 31° | 5° | 18° | — | — |
| 2008 | 19° | 7° | 13° | 0.25" | 4" |
| 2007 | 19° | -5° | 7° | — | — |
| 2006warmest | 44° | 32° | 38° | 1.27" | — |
| 2005 | 22° | -11° | 5° | — | — |
| 2004 | 44° | 30° | 37° | — | — |
| 2003 | 39° | 15° | 27° | — | — |
| 2002 | 42° | 30° | 36° | — | — |
| 2001 | 39° | 15° | 27° | — | — |
| 2000 | 30° | 23° | 27° | 0.51" | 4" |
| 1999 | 26° | 21° | 24° | 0.13" | 1.5" |
| 1998 | 43° | 8° | 25° | — | — |
| 1997 | 35° | 25° | 30° | — | 1" |
| 1996 | 26° | 12° | 19° | 0.48" | 1" |
| 1995 | 42° | 26° | 34° | — | — |
| 1994 | 30° | 5° | 18° | 0.25" | 2" |
| 1993 | 23° | -2° | 11° | — | — |
| 1992 | 21° | 0° | 11° | 0.15" | 0.1" |
| 1991 | 25° | -8° | 9° | — | — |
| 1990 | 23° | -25° | -1° | — | — |
| 1989 | 36° | 26° | 31° | 0.08" | 0.8" |
| 1988 | 27° | -1° | 13° | — | — |
| 1987 | 15° | -11° | 2° | — | — |
| 1986 | 26° | 0° | 13° | — | — |
| 1985 | 27° | -12° | 8° | — | — |
| 1984 | 4° | -25° | -11° | — | — |
| 1983 | 26° | 12° | 19° | — | — |
| 1982 | 32° | 22° | 27° | 0.05" | 1.5" |
| 1981 | 37° | 31° | 34° | 0.76" | — |
| 1980 | 35° | -5° | 15° | — | — |
| 1979 | 41° | 32° | 37° | — | — |
| 1978 | 31° | 20° | 25° | 0.05" | 0.3" |
| 1977 | 41° | 33° | 37° | 0.81" | — |
| 1976 | 28° | -6° | 11° | — | — |
| 1975 | 37° | 11° | 24° | 0.38" | 1.5" |
| 1974 | 25° | 0° | 12° | 0.86" | 4" |
| 1973 | 35° | 20° | 27° | — | — |
| 1972coldest | -6° | -33° | -19° | — | — |
| 1971 | 22° | 15° | 18° | — | — |
Jackson, WY Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Jackson, WY Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Jackson, WY 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 Jackson, WY
Jackson, WY has no months that meet our "pleasant" threshold — every season has tradeoffs.