What is the weather like in Gateway Arch National Park vs Mammoth Cave National Park in March?

In March, Gateway Arch National Park averages 15°C high / 3°C low with about 116 mm of rain; Mammoth Cave National Park averages 18°C high / 5°C low with about 133 mm.

Gateway Arch National Park vs Mammoth Cave National Park in March

Mammoth Cave National Park is the better pick in March — 81 vs 77 on SeasonMap's comfort score. Mammoth Cave National Park is nice, rainy, clean air, while Gateway Arch National Park is cool, rainy, clean air.

Gateway Arch National Park vs Mammoth Cave National Park — March climate, side by side

	🇺🇸 Gateway Arch National Park	🇺🇸 Mammoth Cave National Park
Comfort score	77/100 (B)	81/100 (A)
Feels-like high	11°C	16°C
Avg high / low	15° / 3°	18° / 5°
Rainfall	116 mm	133 mm
Rainy days	10	10
Humidity	65%	66%
Air quality (AQI)	42	40

Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.

Month by month

Gateway Arch National Park 🇺🇸 United Statescool, rainy, clean air · best April77
Mammoth Cave National Park 🇺🇸 United Statesnice, rainy, clean air · best April81

Gateway Arch National Park vs Mammoth Cave National Park in March — FAQ

Is March better in Gateway Arch National Park or Mammoth Cave National Park?: Mammoth Cave National Park is the better pick in March — 81 vs 77 on SeasonMap's comfort score. Mammoth Cave National Park is nice, rainy, clean air, while Gateway Arch National Park is cool, rainy, clean air.
What is the weather like in Gateway Arch National Park vs Mammoth Cave National Park in March?: In March, Gateway Arch National Park averages 15°C high / 3°C low with about 116 mm of rain; Mammoth Cave National Park averages 18°C high / 5°C low with about 133 mm.