Boulder vs Denver: which is better, month by month

Denver beats Boulder in 1 of 12 months — its lead peaks in May (88 vs 83) — and they are within 3 points in June to April.

Each place is scored under the lens that suits its type. Comfort is SeasonMap's 0–100 estimate from ERA5 climate normals, not a forecast.

Boulder

🇺🇸 United States · mild climate

Best month: September 90/100
Months won: 0 of 12

Denver

🇺🇸 United States · arid climate

Best month: September 90/100
Months won: 1 of 12

Boulder vs Denver — all 12 months

Month	Boulder	Denver	Winner	Gap
January	62Ccold, dry, clean air	63Ccold, dry, clean air	Tie	1
February	66Ccold, a little rain, clean air	66Ccold, dry, clean air	Tie	0
March	74Bcool, a little rain, clean air	75Bcool, a little rain, clean air	Tie	1
April	80Acool, a little rain, reliable snow	82Acool, a little rain, clean air	Tie	2
May	83Anice, rainy, clean air	88Anice, a little rain	Denver	5
June	88Ahot, a little rain, clean air	87Ahot, a little rain, clean air	Tie	1
July	84Ahot, a little rain	81Ahot, a little rain	Tie	3
August	87Ahot, a little rain, clean air	84Ahot, dry, clean air	Tie	3
September	90Swarm, a little rain, clean air	90Swarm, dry, clean air	Tie	0
October	86Anice, dry, clean air	86Anice, dry, clean air	Tie	0
November	73Bcool, dry, clean air	73Bcool, dry, clean air	Tie	0
December	67Ccold, dry, clean air	67Ccold, dry, clean air	Tie	0

A month is a tie when the two are within 3 points. The widest gap is May (83 vs 88). Tap a month for that month's temperature, rain, humidity and air quality side by side.