Mammoth Lakes vs San Francisco: which is better, month by month

San Francisco beats Mammoth Lakes in 8 of 12 months — its lead peaks in June (92 vs 12) — while Mammoth Lakes wins December to March.

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 Lakes

🇺🇸 United States · mild climate

Best month: February 89/100
Months won: 4 of 12

San Francisco

🇺🇸 United States · mild climate

Best month: September 96/100
Months won: 8 of 12

Mammoth Lakes vs San Francisco — all 12 months

Month	Mammoth Lakes	San Francisco	Winner	Gap
January	86Acold, rainy, clean air	68Ccool, rainy, clean air	Mammoth Lakes	18
February	89Acold, rainy, clean air	75Bcool, rainy, muggy air	Mammoth Lakes	14
March	84Acold, rainy, reliable snow	76Bcool, rainy, clean air	Mammoth Lakes	8
April	57Dcold, a little rain, reliable snow	85Anice, a little rain, clean air	San Francisco	28
May	34Fcool, a little rain	88Anice, dry, clean air	San Francisco	54
June	12Fnice, dry	92Snice, dry, clean air	San Francisco	80
July	14Fwarm, dry	93Snice, dry, clean air	San Francisco	79
August	16Fwarm, dry, clean air	95Snice, dry, clean air	San Francisco	79
September	19Fnice, dry, clean air	96Snice, dry, clean air	San Francisco	77
October	26Fcool, dry, clean air	90Snice, dry, clean air	San Francisco	64
November	64Ccold, a little rain, clean air	80Anice, a little rain, clean air	San Francisco	16
December	82Acold, rainy, clean air	67Ccool, rainy, clean air	Mammoth Lakes	15

A month is a tie when the two are within 3 points. The widest gap is June (12 vs 92). Tap a month for that month's temperature, rain, humidity and air quality side by side.