Weather on April 21 at Mammoth Cave
Mammoth Cave National Park
Based on 56 years of data from Bowling Green, KY
Planning Your Visit
April 21st in Mammoth Cave National Park (via Bowling Green, KY) typically brings pleasant spring weather, with average highs around 70°F and lows near 49°F. Over 56 years of records, the warmest April 21st was in 2002 (73°F average), while the coldest was 1993 (42°F) — a 31°F range across recorded history. Precipitation has occurred on 39% of recorded April 21st dates, with snow falling 2% of the time. The last decade has been 3.4°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.4°F cooler on this date compared to 20-30 years ago.
Planning for April 21st in Mammoth Cave? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2026 | 80°F | 42°F | 0" | 0" |
| 2025 | 78°F | 56°F | 0.36" | 0" |
| 2024 | 57°F | 39°F | 0" | -- |
| 2023 | 71°F | 50°F | 1.42" | 0" |
| 2022 | 73°F | 59°F | 0.08" | -- |
| 2021 | 52°F | 34°F | 0.05" | 0.1" |
| 2020 | 70°F | 45°F | 0" | 0" |
| 2019 | 72°F | 36°F | 0" | 0" |
| 2018 | 73°F | 39°F | 0" | 0" |
| 2017 | 71°F | 55°F | 0.48" | 0" |
| 2016 | 77°F | 59°F | 0.51" | 0" |
| 2015 | 68°F | 46°F | 0.18" | 0" |
| 2014 | 79°F | 47°F | 0" | 0" |
| 2013 | 65°F | 37°F | 0" | 0" |
| 2012 | 54°F | 47°F | 1.27" | 0" |
| 2011 | 65°F | 46°F | 0" | 0" |
| 2010 | 72°F | 43°F | 0" | 0" |
| 2009 | 57°F | 43°F | 0" | 0" |
| 2008 | 73°F | 44°F | 0" | 0" |
| 2007 | 77°F | 42°F | 0" | 0" |
| 2006 | 70°F | 58°F | 2.34" | 0" |
| 2005 | 80°F | 60°F | 0" | 0" |
| 2004 | 67°F | 53°F | 3.02" | 0" |
| 2003 | 67°F | 54°F | 0.43" | 0" |
| 2002 | 86°F | 61°F | 0.08" | 0" |
| 2001 | 78°F | 63°F | 0" | 0" |
| 2000 | 58°F | 45°F | 0" | 0" |
| 1999 | 83°F | 50°F | 0" | -- |
| 1998 | 58°F | 42°F | 0.1" | 0" |
| 1997 | 59°F | 50°F | -- | 0" |
| 1996 | 76°F | 52°F | 0" | 0" |
| 1995 | 80°F | 59°F | 1.37" | 0" |
| 1994 | 76°F | 47°F | 0" | 0" |
| 1993 | 47°F | 38°F | 0" | 0" |
| 1992 | 72°F | 52°F | 0.33" | 0" |
| 1991 | 56°F | 46°F | 0" | 0" |
| 1990 | 73°F | 58°F | 0.71" | 0" |
| 1989 | 75°F | 41°F | 0" | 0" |
| 1988 | 74°F | 46°F | 0" | 0" |
| 1987 | 84°F | 52°F | 0" | 0" |
| 1986 | 55°F | 45°F | 0.61" | 0" |
| 1985 | 85°F | 54°F | 0" | 0" |
| 1984 | 58°F | 51°F | 1.88" | 0" |
| 1983 | 60°F | 29°F | 0" | 0" |
| 1982 | 56°F | 37°F | 0" | 0" |
| 1981 | 64°F | 37°F | 0" | 0" |
| 1980 | 79°F | 53°F | 0" | 0" |
| 1979 | 78°F | 53°F | 0.03" | 0" |
| 1978 | 50°F | 37°F | 0" | 0" |
| 1977 | 73°F | 64°F | 0.97" | 0" |
| 1976 | 75°F | 54°F | 0.56" | 0" |
| 1975 | 66°F | 38°F | 0" | 0" |
| 1974 | 75°F | 62°F | 0" | 0" |
| 1973 | 83°F | 58°F | 0" | 0" |
| 1972 | 76°F | 58°F | 2.31" | 0" |
| 1971 | 77°F | 59°F | 0" | 0" |