Boise vs Calgary: which is better, month by month

Boise beats Calgary in 10 of 12 months — its lead peaks in February (61 vs 41) — while Calgary wins July to August.

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.

Boise

🇺🇸 United States · arid climate

Best month: September 94/100
Months won: 10 of 12

Calgary

🇨🇦 Canada · arid climate

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

Boise vs Calgary — all 12 months

Month	Boise	Calgary	Winner	Gap
January	51Dcold, a little rain, clean air	43Ffreezing, dry, clean air	Boise	8
February	61Ccold, a little rain, clean air	41Ffreezing, dry, clean air	Boise	20
March	73Bcold, a little rain, clean air	55Dcold, dry, clean air	Boise	18
April	84Acool, dry, clean air	72Bcold, dry, clean air	Boise	12
May	92Snice, a little rain, clean air	80Acool, a little rain	Boise	12
June	90Swarm, dry, clean air	84Anice, rainy, clean air	Boise	6
July	72Bsweltering, dry, clean air	91Swarm, a little rain	Calgary	19
August	81Ahot, dry	94Swarm, a little rain	Calgary	13
September	94Swarm, dry, clean air	86Anice, dry, clean air	Boise	8
October	82Acool, dry, clean air	68Ccold, dry, clean air	Boise	14
November	66Ccold, dry, clean air	51Dcold, dry, clean air	Boise	15
December	47Fcold, a little rain, clean air	38Ffreezing, dry, clean air	Boise	9

A month is a tie when the two are within 3 points. The widest gap is February (61 vs 41). Tap a month for that month's temperature, rain, humidity and air quality side by side.