Weather on April 20 at Mammoth Cave
Mammoth Cave National Park
Based on 56 years of data from Bowling Green, KY
Planning Your Visit
April 20th in Mammoth Cave National Park (via Bowling Green, KY) typically brings pleasant spring weather, with average highs around 72°F and lows near 48°F. Over 56 years of records, the warmest April 20th was in 2017 (74°F average), while the coldest was 1983 (40°F) — a 34°F range across recorded history. Precipitation has occurred on 46% of recorded April 20th dates, with snow falling 2% of the time. The last decade has been 2.5°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.5°F cooler on this date compared to 20-30 years ago.
Planning for April 20th 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 | 68°F | 40°F | 0" | 0" |
| 2025 | 87°F | 59°F | 0" | 0" |
| 2024 | 65°F | 42°F | 0" | -- |
| 2023 | 86°F | 60°F | 0" | 0" |
| 2022 | 73°F | 39°F | 0.05" | -- |
| 2021 | 74°F | 34°F | 0.23" | 0.1" |
| 2020 | 71°F | 45°F | 0" | 0" |
| 2019 | 49°F | 39°F | 1.19" | 0" |
| 2018 | 66°F | 33°F | 0" | 0" |
| 2017 | 84°F | 65°F | 0.1" | 0" |
| 2016 | 84°F | 57°F | 0" | 0" |
| 2015 | 64°F | 52°F | 1.22" | 0" |
| 2014 | 77°F | 43°F | 0" | 0" |
| 2013 | 61°F | 37°F | 0" | 0" |
| 2012 | 80°F | 52°F | 1.68" | 0" |
| 2011 | 69°F | 50°F | 1.42" | 0" |
| 2010 | 69°F | 48°F | 0" | 0" |
| 2009 | 66°F | 51°F | 0.41" | 0" |
| 2008 | 67°F | 41°F | 0" | 0" |
| 2007 | 71°F | 38°F | 0" | 0" |
| 2006 | 74°F | 58°F | 0.13" | 0" |
| 2005 | 81°F | 50°F | 0" | 0" |
| 2004 | 80°F | 59°F | 0.03" | 0" |
| 2003 | 80°F | 63°F | 3.51" | 0" |
| 2002 | 83°F | 64°F | 0.36" | 0" |
| 2001 | 69°F | 52°F | 0.33" | 0" |
| 2000 | 78°F | 56°F | 0.38" | 0" |
| 1999 | 72°F | 38°F | 0" | -- |
| 1998 | 63°F | 35°F | 0.13" | 0" |
| 1997 | 66°F | 35°F | -- | 0" |
| 1996 | 73°F | 55°F | 3.05" | 0" |
| 1995 | 75°F | 54°F | 4.72" | 0" |
| 1994 | 78°F | 48°F | 0" | 0" |
| 1993 | 69°F | 46°F | 0.13" | 0" |
| 1992 | 76°F | 60°F | 1.63" | 0" |
| 1991 | 57°F | 47°F | 0" | 0" |
| 1990 | 74°F | 58°F | 0.13" | 0" |
| 1989 | 69°F | 40°F | 0" | 0" |
| 1988 | 69°F | 30°F | 0" | 0" |
| 1987 | 82°F | 49°F | 0" | 0" |
| 1986 | 62°F | 47°F | 2.41" | 0" |
| 1985 | 82°F | 53°F | 0" | 0" |
| 1984 | 68°F | 40°F | 0.08" | 0" |
| 1983 | 51°F | 28°F | 0" | 0" |
| 1982 | 60°F | 51°F | 1.83" | 0" |
| 1981 | 63°F | 44°F | 2.46" | 0" |
| 1980 | 82°F | 45°F | 0" | 0" |
| 1979 | 80°F | 53°F | 0" | 0" |
| 1978 | 50°F | 43°F | 0" | 0" |
| 1977 | 85°F | 60°F | 0" | 0" |
| 1976 | 86°F | 52°F | 0" | 0" |
| 1975 | 63°F | 44°F | 0" | 0" |
| 1974 | 81°F | 45°F | 0" | 0" |
| 1973 | 82°F | 60°F | 0.25" | 0" |
| 1972 | 76°F | 63°F | 0.18" | 0" |
| 1971 | 86°F | 55°F | 0" | 0" |