Ottawa vs St. John's, Newfoundland: which is better, month by month

Ottawa beats St. John's, Newfoundland in 4 of 12 months — its lead peaks in May (83 vs 71) — while St. John's, Newfoundland wins July; they are within 3 points in the other 7 months.

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.

Ottawa

🇨🇦 Canada · continental climate

Best month: June 92/100
Months won: 4 of 12

St. John's, Newfoundland

🇨🇦 Canada · mild climate

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

Ottawa vs St. John's, Newfoundland — all 12 months

Month	Ottawa	St. John's, Newfoundland	Winner	Gap
January	32Ffreezing, a little rain, clean air	33Ffreezing, rainy, clean air	Tie	1
February	39Ffreezing, a little rain, clean air	38Ffreezing, rainy, clean air	Tie	1
March	48Ffreezing, a little rain, clean air	46Ffreezing, rainy, clean air	Tie	2
April	65Ccold, rainy, clean air	59Dcold, rainy, clean air	Ottawa	6
May	83Anice, a little rain, clean air	71Bcold, a little rain, clean air	Ottawa	12
June	92Swarm, rainy	80Anice, rainy, clean air	Ottawa	12
July	79Bhot, rainy, clean air	90Snice, rainy, clean air	St. John's, Newfoundland	11
August	85Awarm, rainy, clean air	88Anice, a little rain, clean air	Tie	3
September	89Anice, a little rain, clean air	77Bnice, rainy, clean air	Ottawa	12
October	68Ccool, rainy, clean air	66Ccool, rainy, clean air	Tie	2
November	53Dcold, a little rain, clean air	51Dcold, rainy, clean air	Tie	2
December	35Ffreezing, rainy, clean air	36Ffreezing, rainy, clean air	Tie	1

A month is a tie when the two are within 3 points. The widest gap is May (83 vs 71). Tap a month for that month's temperature, rain, humidity and air quality side by side.