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

In December, Gateway Arch National Park averages 9°C high / -2°C low with about 58 mm of rain; Mammoth Cave National Park averages 12°C high / 1°C low with about 124 mm.

Gateway Arch National Park vs Mammoth Cave National Park in December

Gateway Arch National Park and Mammoth Cave National Park are nearly tied in December — 71 vs 70 on SeasonMap's comfort score. Gateway Arch National Park is cold, a little rain, clean air; Mammoth Cave National Park is cold, rainy, clean air.

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

	🇺🇸 Gateway Arch National Park	🇺🇸 Mammoth Cave National Park
Comfort score	71/100 (B)	70/100 (B)
Feels-like high	5°C	9°C
Avg high / low	9° / -2°	12° / 1°
Rainfall	58 mm	124 mm
Rainy days	7	9
Humidity	70%	73%
Air quality (AQI)	32	30

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

Month by month

Gateway Arch National Park 🇺🇸 United Statescold, a little rain, clean air · best April71
Mammoth Cave National Park 🇺🇸 United Statescold, rainy, clean air · best April70

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

Is December better in Gateway Arch National Park or Mammoth Cave National Park?: Gateway Arch National Park and Mammoth Cave National Park are nearly tied in December — 71 vs 70 on SeasonMap's comfort score. Gateway Arch National Park is cold, a little rain, clean air; Mammoth Cave National Park is cold, rainy, clean air.
What is the weather like in Gateway Arch National Park vs Mammoth Cave National Park in December?: In December, Gateway Arch National Park averages 9°C high / -2°C low with about 58 mm of rain; Mammoth Cave National Park averages 12°C high / 1°C low with about 124 mm.