What is the weather like in Lassen Volcanic National Park vs Mammoth Cave National Park in December?

In December, Lassen Volcanic National Park averages 2°C high / -6°C low with about 189 mm of rain; Mammoth Cave National Park averages 12°C high / 1°C low with about 124 mm.

Lassen Volcanic National Park vs Mammoth Cave National Park in December

Mammoth Cave National Park is the better pick in December — 70 vs 50 on SeasonMap's comfort score. Mammoth Cave National Park is cold, rainy, clean air, while Lassen Volcanic National Park is freezing, soaked, clean air.

Lassen Volcanic National Park vs Mammoth Cave National Park — December climate, side by side

	Lassen Volcanic National Park	Mammoth Cave National Park
Comfort score	50/100 (D)	70/100 (B)
Feels-like high	-2°C	9°C
Avg high / low	2° / -6°	12° / 1°
Rainfall	189 mm	124 mm
Rainy days	12	9
Humidity	79%	73%
Air quality (AQI)	36	30

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

Lassen Volcanic National Park vs Mammoth Cave National Park in December — FAQ

Is December better in Lassen Volcanic National Park or Mammoth Cave National Park?: Mammoth Cave National Park is the better pick in December — 70 vs 50 on SeasonMap's comfort score. Mammoth Cave National Park is cold, rainy, clean air, while Lassen Volcanic National Park is freezing, soaked, clean air.
What is the weather like in Lassen Volcanic National Park vs Mammoth Cave National Park in December?: In December, Lassen Volcanic National Park averages 2°C high / -6°C low with about 189 mm of rain; Mammoth Cave National Park averages 12°C high / 1°C low with about 124 mm.