Weather on January 21 at Mammoth Cave
Mammoth Cave National Park
Based on 56 years of data from Bowling Green, KY
Planning Your Visit
January 21st in Mammoth Cave National Park (via Bowling Green, KY) typically brings chilly winter weather, with average highs around 42°F and lows near 24°F. Over 56 years of records, the warmest January 21st was in 2017 (61°F average), while the coldest was 1984 (-5°F) — a 66°F range across recorded history. Precipitation has occurred on 30% of recorded January 21st dates, with snow falling 4% of the time (heaviest snowfall: 2"). The last decade has been 3.5°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.5°F cooler on this date compared to 20-30 years ago.
Planning for January 21st 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 |
|---|---|---|---|---|
| 2026 | 44°F | 20°F | 0.48" | 0" |
| 2025 | 23°F | 7°F | 0" | 0" |
| 2024 | 30°F | 1°F | 0" | 0" |
| 2023 | 48°F | 24°F | 0" | 0" |
| 2022 | 30°F | 15°F | 0" | -- |
| 2021 | 49°F | 35°F | 0.43" | 0" |
| 2020 | 35°F | 20°F | 0" | 0" |
| 2019 | 27°F | 13°F | 0" | 0" |
| 2018 | 64°F | 49°F | 0" | 0" |
| 2017 | 70°F | 52°F | 0" | 0" |
| 2016 | 32°F | 26°F | 0.03" | 0" |
| 2015 | 57°F | 30°F | 0" | 0" |
| 2014 | 41°F | 12°F | 0.18" | 0.5" |
| 2013 | 36°F | 23°F | 0" | 0" |
| 2012 | 53°F | 34°F | 0.56" | 0" |
| 2011 | 23°F | 12°F | 0" | 0" |
| 2010 | 63°F | 48°F | 0.74" | 0" |
| 2009 | 37°F | 12°F | 0" | 0" |
| 2008 | 43°F | 12°F | 0" | 0" |
| 2007 | 44°F | 34°F | 1.8" | 0" |
| 2006 | 58°F | 36°F | 0.03" | 0" |
| 2005 | 42°F | 29°F | 0" | 0" |
| 2004 | 39°F | 24°F | 0" | 0" |
| 2003 | 40°F | 26°F | 0" | 0" |
| 2002 | 52°F | 27°F | 0" | 0" |
| 2001 | 30°F | 13°F | 0" | 0" |
| 2000 | 31°F | 12°F | 0" | 0" |
| 1999 | 71°F | 48°F | 0" | 0" |
| 1998 | 48°F | 30°F | -- | 0" |
| 1997 | 67°F | 27°F | -- | 0" |
| 1996 | 39°F | 27°F | 0" | 0" |
| 1995 | 31°F | 26°F | 0" | 0" |
| 1994 | 24°F | 0°F | 0" | 0" |
| 1993 | 55°F | 42°F | 0.97" | 0" |
| 1992 | 57°F | 23°F | 0" | 0" |
| 1991 | 25°F | 18°F | 0" | 0" |
| 1990 | 47°F | 32°F | 0" | 0" |
| 1989 | 40°F | 21°F | 0" | 0" |
| 1988 | 38°F | 32°F | 0" | 0" |
| 1987 | 35°F | 20°F | 0" | 0" |
| 1986 | 68°F | 28°F | 0" | 0" |
| 1985 | 12°F | -12°F | 0" | 0" |
| 1984 | 7°F | -17°F | 0" | 0" |
| 1983 | 37°F | 29°F | 2.84" | 0" |
| 1982 | 46°F | 40°F | 0.05" | 0" |
| 1981 | 44°F | 35°F | 0.1" | 0" |
| 1980 | 45°F | 26°F | 0.05" | 0" |
| 1979 | 37°F | 26°F | 1.12" | 2" |
| 1978 | 29°F | 13°F | 0" | 0" |
| 1977 | 34°F | 0°F | 0" | 0" |
| 1976 | 42°F | 20°F | 0" | 0" |
| 1975 | 44°F | 20°F | 0" | 0" |
| 1974 | 54°F | 38°F | 0" | 0" |
| 1973 | 53°F | 33°F | 1.14" | 0" |
| 1972 | 55°F | 46°F | 0.05" | 0" |
| 1971 | 40°F | 26°F | 0.03" | 0" |