Weather on July 21 at Mammoth Cave

Mammoth Cave National Park

KYSoutheast800 ft elevation
Avg High90°F
Avg Low70°F
Warmest198389°F
Coldest197170°F

Based on 55 years of data from Bowling Green, KY

Planning Your Visit

July 21st in Mammoth Cave National Park (via Bowling Green, KY) typically brings hot summer weather, with average highs around 90°F and lows near 70°F. Over 55 years of records, the warmest July 21st was in 1983 (89°F average), while the coldest was 1971 (70°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 31% of July 21st dates historically, with the wettest July 21st recording 5.99" of rain. The last decade has been 1.2°F warmer on this date compared to 20-30 years ago.

The last decade has been 1.2°F warmer on this date compared to 20-30 years ago.

Planning for July 21st in Mammoth Cave? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.

Year by Year History

YearHighLowPrecipSnow
202592°F74°F1.12"0"
202489°F72°F0"0"
202385°F73°F0"0"
202292°F73°F0.99"--
202189°F68°F0"0"
202095°F72°F2.16"0"
201988°F72°F0"0"
201887°F68°F3.76"0"
201796°F76°F0"0"
201694°F71°F0"0"
201589°F73°F0.61"0"
201491°F65°F0"0"
201385°F70°F2.74"0"
201289°F73°F0"0"
201197°F73°F0.66"0"
201085°F73°F1.24"0"
200982°F57°F0.05"0"
200897°F76°F0"0"
200782°F61°F0"0"
200693°F71°F1.96"0"
200593°F75°F0"0"
200489°F65°F0"0"
200379°F69°F3.73"0"
200292°F72°F0"0"
200188°F70°F0"0"
200084°F63°F0"0"
199994°F76°F0.03"0"
199892°F72°F0"0"
199792°F72°F--0"
199692°F73°F--0"
199592°F73°F0"0"
199493°F72°F0"0"
199393°F71°F0"0"
199291°F68°F0.86"0"
199196°F70°F0"0"
199088°F70°F0.64"0"
198987°F64°F0.38"0"
198882°F70°F0"0"
198791°F67°F0"0"
198693°F71°F0"0"
198592°F71°F0"0"
198488°F66°F0"0"
1983102°F76°F0"0"
198289°F72°F0"0"
198186°F67°F0"0"
198097°F71°F1.78"0"
197988°F68°F5.99"0"
197896°F75°F0"0"
197798°F73°F0"0"
197692°F65°F0"0"
197591°F70°F0"0"
197488°F64°F0"0"
197393°F73°F0"0"
197297°F71°F0"0"
197181°F60°F0"0"

July 21 at Nearby Parks

Holiday Weather at Mammoth Cave

Official NPS WebsiteVisit nps.gov/maca for park information, alerts, and reservations

Explore More at Mammoth Cave

See historical weather for other dates

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