Mammoth Cave National Park vs St. Louis: which is better, month by month

Mammoth Cave National Park beats St. Louis in 6 of 12 months — its lead peaks in January (66 vs 50) — while St. Louis wins May to September; they are within 3 points in October.

Each place is scored under the lens that suits its type — they are different kinds of destination, so the scores are each place at its own best. Comfort is SeasonMap's 0–100 estimate from ERA5 climate normals, not a forecast.

Mammoth Cave National Park

🇺🇸 United States · mild climate

Best month: April 87/100
Months won: 6 of 12

St. Louis

🇺🇸 United States · mild climate

Best month: May 87/100
Months won: 5 of 12

Mammoth Cave National Park vs St. Louis — all 12 months

Month	Mammoth Cave National Park	St. Louis	Winner	Gap
January	66Ccold, rainy, clean air	50Dcold, a little rain, clean air	Mammoth Cave National Park	16
February	70Bcool, soaked, clean air	62Ccold, a little rain, clean air	Mammoth Cave National Park	8
March	81Anice, rainy, clean air	69Ccool, rainy, clean air	Mammoth Cave National Park	12
April	87Anice, rainy, clean air	80Anice, rainy, clean air	Mammoth Cave National Park	7
May	77Bwarm, rainy, clean air	87Awarm, rainy	St. Louis	10
June	62Csweltering, rainy	76Bsweltering, rainy	St. Louis	14
July	50Dsweltering, soaked	66Csweltering, rainy	St. Louis	16
August	59Dsweltering, rainy	73Bsweltering, rainy	St. Louis	14
September	75Bhot, rainy, clean air	85Ahot, rainy, clean air	St. Louis	10
October	85Awarm, rainy, clean air	84Anice, a little rain, clean air	Tie	1
November	82Acool, rainy, clean air	68Ccool, a little rain, clean air	Mammoth Cave National Park	14
December	70Bcold, rainy, clean air	59Dcold, a little rain, clean air	Mammoth Cave National Park	11

A month is a tie when the two are within 3 points. The widest gap is January (66 vs 50). Tap a month for that month's temperature, rain, humidity and air quality side by side.