Boulder vs Edmonton: which is better, month by month

Boulder beats Edmonton in 8 of 12 months — its lead peaks in December (67 vs 31) — while Edmonton wins July to August; they are within 3 points in May to June.

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: 8 of 12

Edmonton

🇨🇦 Canada · continental climate

Best month: August 94/100
Months won: 2 of 12

Boulder vs Edmonton — all 12 months

Month	Boulder	Edmonton	Winner	Gap
January	62Ccold, dry, clean air	34Ffreezing, dry, clean air	Boulder	28
February	66Ccold, a little rain, clean air	39Ffreezing, dry, clean air	Boulder	27
March	74Bcool, a little rain, clean air	52Dfreezing, dry, clean air	Boulder	22
April	80Acool, a little rain, reliable snow	72Bcold, dry, clean air	Boulder	8
May	83Anice, rainy, clean air	81Anice, a little rain	Tie	2
June	88Ahot, a little rain, clean air	87Anice, rainy	Tie	1
July	84Ahot, a little rain	90Swarm, a little rain	Edmonton	6
August	87Ahot, a little rain, clean air	94Swarm, a little rain	Edmonton	7
September	90Swarm, a little rain, clean air	84Anice, dry, clean air	Boulder	6
October	86Anice, dry, clean air	67Ccold, dry, clean air	Boulder	19
November	73Bcool, dry, clean air	45Ffreezing, dry, clean air	Boulder	28
December	67Ccold, dry, clean air	31Ffreezing, dry, clean air	Boulder	36

A month is a tie when the two are within 3 points. The widest gap is December (67 vs 31). Tap a month for that month's temperature, rain, humidity and air quality side by side.