Weather on May 18 at Mammoth Cave
Mammoth Cave National Park
Based on 56 years of data from Bowling Green, KY
Planning Your Visit
May 18th in Mammoth Cave National Park (via Bowling Green, KY) typically brings pleasant spring weather, with average highs around 79°F and lows near 57°F. Over 56 years of records, the warmest May 18th was in 2017 (80°F average), while the coldest was 2002 (52°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 29% of May 18th dates historically, with the wettest May 18th recording 7.98" of rain. The last decade has been 1.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.5°F warmer on this date compared to 20-30 years ago.
Planning for May 18th in Mammoth Cave? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2026 | 91°F | 67°F | 0" | 0" |
| 2025 | 81°F | 60°F | 0" | 0" |
| 2024 | 82°F | 62°F | 0" | 0" |
| 2023 | 82°F | 56°F | 0" | 0" |
| 2022 | 86°F | 60°F | 0" | -- |
| 2021 | 81°F | 63°F | 0" | 0" |
| 2020 | 72°F | 60°F | 0.43" | 0" |
| 2019 | 89°F | 62°F | 0" | 0" |
| 2018 | 83°F | 67°F | 1.02" | 0" |
| 2017 | 88°F | 72°F | 0" | 0" |
| 2016 | 65°F | 48°F | 0.91" | 0" |
| 2015 | 80°F | 64°F | 0.23" | 0" |
| 2014 | 69°F | 43°F | 0" | 0" |
| 2013 | 81°F | 65°F | 0.03" | 0" |
| 2012 | 86°F | 58°F | 0" | 0" |
| 2011 | 65°F | 53°F | 0" | 0" |
| 2010 | 65°F | 57°F | 0" | 0" |
| 2009 | 70°F | 42°F | 0" | 0" |
| 2008 | 76°F | 52°F | 0" | 0" |
| 2007 | 69°F | 46°F | 0" | 0" |
| 2006 | 73°F | 49°F | 0" | 0" |
| 2005 | 82°F | 47°F | 0" | 0" |
| 2004 | 83°F | 66°F | 0" | 0" |
| 2003 | 78°F | 63°F | 0.18" | 0" |
| 2002 | 61°F | 44°F | 0" | 0" |
| 2001 | 88°F | 71°F | 0" | 0" |
| 2000 | 86°F | 71°F | 0" | 0" |
| 1999 | 75°F | 55°F | 0.28" | 0" |
| 1998 | 84°F | 52°F | 0" | 0" |
| 1997 | 86°F | 62°F | -- | 0" |
| 1996 | 88°F | 65°F | 0" | 0" |
| 1995 | 78°F | 63°F | 7.98" | 0" |
| 1994 | 74°F | 49°F | 0" | 0" |
| 1993 | 82°F | 59°F | 0.66" | 0" |
| 1992 | 77°F | 62°F | 0.36" | 0" |
| 1991 | 86°F | 69°F | 0" | 0" |
| 1990 | 82°F | 51°F | 0" | 0" |
| 1989 | 85°F | 63°F | 0" | 0" |
| 1988 | 76°F | 48°F | 0" | 0" |
| 1987 | 80°F | 65°F | 0" | 0" |
| 1986 | 73°F | 57°F | 0.33" | 0" |
| 1985 | 71°F | 43°F | 0" | 0" |
| 1984 | 81°F | 47°F | 0" | 0" |
| 1983 | 65°F | 50°F | 7.34" | 0" |
| 1982 | 81°F | 61°F | 3.12" | 0" |
| 1981 | 65°F | 53°F | 6.99" | 0" |
| 1980 | 84°F | 61°F | 0.23" | 0" |
| 1979 | 88°F | 49°F | 0" | 0" |
| 1978 | 80°F | 50°F | 0" | 0" |
| 1977 | 89°F | 61°F | 0" | 0" |
| 1976 | 64°F | 46°F | 0" | 0" |
| 1975 | 81°F | 59°F | 0" | 0" |
| 1974 | 88°F | 69°F | 0.53" | 0" |
| 1973 | 73°F | 40°F | 0" | 0" |
| 1972 | 79°F | 53°F | 0" | 0" |
| 1971 | 85°F | 57°F | 0" | 0" |