What is the weather like in Boulder vs Calgary in October?

In October, Boulder averages 20°C high / 4°C low with about 26 mm of rain; Calgary averages 12°C high / -1°C low with about 24 mm.

Boulder vs Calgary in October

Boulder is the better pick in October — 86 vs 68 on SeasonMap's comfort score. Boulder is nice, dry, clean air, while Calgary is cold, dry, clean air.

Boulder vs Calgary — October climate, side by side

	🇺🇸 Boulder	🇨🇦 Calgary
Comfort score	86/100 (A)	68/100 (C)
Feels-like high	18°C	9°C
Avg high / low	20° / 4°	12° / -1°
Rainfall	26 mm	24 mm
Rainy days	4	5
Humidity	55%	66%
Air quality (AQI)	28	27

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

Month by month

Boulder 🇺🇸 United Statesnice, dry, clean air · best September86
Calgary 🇨🇦 Canadacold, dry, clean air · best August68

Boulder vs Calgary in October — FAQ

Is October better in Boulder or Calgary?: Boulder is the better pick in October — 86 vs 68 on SeasonMap's comfort score. Boulder is nice, dry, clean air, while Calgary is cold, dry, clean air.
What is the weather like in Boulder vs Calgary in October?: In October, Boulder averages 20°C high / 4°C low with about 26 mm of rain; Calgary averages 12°C high / -1°C low with about 24 mm.