Weather on September 15 at Mammoth Cave

Mammoth Cave National Park

KYSoutheast800 ft elevation
Avg High82°F
Avg Low58°F
Warmest199182°F
Coldest197459°F

Based on 55 years of data from Bowling Green, KY

Planning Your Visit

September 15th in Mammoth Cave National Park (via Bowling Green, KY) typically brings warm fall weather, with average highs around 82°F and lows near 58°F. Over 55 years of records, the warmest September 15th was in 1991 (82°F average), while the coldest was 1974 (59°F) — a 23°F range across recorded history. Rain or other precipitation has occurred on about 18% of September 15th dates historically, with the wettest September 15th recording 6.58" of rain. The last decade has been 6.4°F warmer on this date compared to 20-30 years ago.

The last decade has been 6.4°F warmer on this date compared to 20-30 years ago.

Planning for September 15th in Mammoth Cave? Stay hydrated and seek shade during peak afternoon hours.

Year by Year History

YearHighLowPrecipSnow
202594°F64°F0"0"
202489°F65°F0"0"
202383°F53°F0"0"
202284°F56°F0"--
202177°F67°F6.58"0"
202081°F61°F0"0"
201995°F62°F0"0"
201891°F70°F0"0"
201785°F60°F0"0"
201692°F68°F0"0"
201583°F48°F0"0"
201475°F51°F0"0"
201381°F50°F0"0"
201277°F61°F0"0"
201169°F51°F0.61"0"
201092°F59°F0"0"
200979°F70°F0.46"0"
200875°F58°F0"0"
200770°F49°F0"0"
200680°F55°F0"0"
200583°F64°F0.05"0"
200487°F61°F0"0"
200377°F52°F0"0"
200286°F69°F3"0"
200175°F49°F0"0"
200072°F47°F0"0"
199983°F48°F0"0"
199888°F67°F0"0"
199784°F61°F--0"
199673°F47°F--0"
199587°F65°F0"0"
199490°F60°F0"0"
199373°F56°F1.27"0"
199288°F55°F0"0"
199197°F68°F0"0"
199082°F58°F0"0"
198971°F61°F0.53"0"
198882°F55°F0"0"
198785°F61°F0"0"
198683°F59°F0"0"
198574°F50°F0"0"
198469°F50°F0"0"
198381°F47°F0"0"
198282°F64°F0"0"
198172°F64°F3.38"0"
198080°F59°F0"0"
197971°F52°F0"0"
197890°F68°F0"0"
197787°F68°F0.64"0"
197685°F57°F0"0"
197574°F53°F0"0"
197474°F45°F0"0"
197383°F60°F0"0"
197286°F64°F0.25"0"
197189°F62°F0"0"

September 15 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

Back to Mammoth Cave