Weather on December 20 at Mammoth Cave
Mammoth Cave National Park
Based on 55 years of data from Bowling Green, KY
Planning Your Visit
December 20th in Mammoth Cave National Park (via Bowling Green, KY) typically brings chilly winter weather, with average highs around 47°F and lows near 27°F. Over 55 years of records, the warmest December 20th was in 2013 (57°F average), while the coldest was 1989 (16°F) — a 41°F range across recorded history. Precipitation has occurred on 38% of recorded December 20th dates, with snow falling 4% of the time. The last decade has been 6.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 6.5°F warmer on this date compared to 20-30 years ago.
Planning for December 20th in Mammoth Cave? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 62°F | 26°F | 0" | 0" |
| 2024 | 41°F | 34°F | 0" | 0" |
| 2023 | 54°F | 22°F | 0" | 0" |
| 2022 | 53°F | 29°F | 0" | 0" |
| 2021 | 48°F | 24°F | 0" | 0" |
| 2020 | 49°F | 31°F | 0.28" | 0" |
| 2019 | 51°F | 22°F | 0" | 0" |
| 2018 | 49°F | 46°F | 1.57" | 0" |
| 2017 | 53°F | 35°F | 0.05" | 0" |
| 2016 | 34°F | 13°F | 0" | 0" |
| 2015 | 51°F | 24°F | 0" | 0" |
| 2014 | 43°F | 26°F | 0" | 0" |
| 2013 | 63°F | 52°F | 0.15" | 0" |
| 2012 | 60°F | 35°F | 2.16" | 0" |
| 2011 | 63°F | 36°F | 0.13" | 0" |
| 2010 | 46°F | 21°F | 0" | 0" |
| 2009 | 38°F | 35°F | 0" | 0" |
| 2008 | 47°F | 36°F | 0.41" | 0" |
| 2007 | 51°F | 30°F | 1.75" | 0" |
| 2006 | 54°F | 33°F | 0" | 0" |
| 2005 | 34°F | 10°F | 0" | 0" |
| 2004 | 37°F | 13°F | 0" | 0" |
| 2003 | 33°F | 17°F | 0" | 0" |
| 2002 | 52°F | 38°F | 0" | 0" |
| 2001 | 46°F | 24°F | 0" | 0" |
| 2000 | 30°F | 10°F | 0" | 0" |
| 1999 | 53°F | 31°F | 0.51" | 0" |
| 1998 | 55°F | 43°F | 0" | 0" |
| 1997 | 54°F | 32°F | -- | 0" |
| 1996 | 25°F | 10°F | -- | 0" |
| 1995 | 37°F | 22°F | 0" | 0" |
| 1994 | 55°F | 21°F | 0" | 0" |
| 1993 | 40°F | 28°F | 0.53" | 0" |
| 1992 | 50°F | 26°F | 0.25" | 0" |
| 1991 | 49°F | 31°F | 0" | 0" |
| 1990 | 60°F | 36°F | 0.03" | 0" |
| 1989 | 25°F | 7°F | 0" | 0" |
| 1988 | 63°F | 48°F | 0.41" | 0" |
| 1987 | 57°F | 36°F | 0.05" | 0" |
| 1986 | 49°F | 27°F | 0" | 0" |
| 1985 | 29°F | 17°F | 0.25" | 1" |
| 1984 | 48°F | 39°F | 1.91" | 0" |
| 1983 | 28°F | 17°F | 0.05" | 0.2" |
| 1982 | 51°F | 31°F | 0" | 0" |
| 1981 | 31°F | 8°F | 0" | 0" |
| 1980 | 23°F | 10°F | 0" | 0" |
| 1979 | 59°F | 26°F | 0" | 0" |
| 1978 | 64°F | 42°F | 3.15" | 0" |
| 1977 | 57°F | 32°F | 0" | 0" |
| 1976 | 54°F | 19°F | 0.25" | 0" |
| 1975 | 44°F | 30°F | 0" | 0" |
| 1974 | 47°F | 23°F | 0" | 0" |
| 1973 | 45°F | 18°F | 2.62" | 0" |
| 1972 | 48°F | 39°F | 0" | 0" |
| 1971 | 64°F | 41°F | 0.13" | 0" |