ClimateAverages

Ontario Weather in January

JanFebMarAprMayJunJulAugSepOctNovDec
January daytime high
15.8°C
January overnight low
3.5°C
January average
9.5°C

In January, Ontario typically sees daytime highs of 15.8°C and overnight lows around 3.5°C. Compared to the annual average high of 23.1°C, January runs -7.3°C.

vs. annual avg high
-7.3°C
Rank among 12 months
#12 warmest
Hottest year overall
2014

Where January ranks in Ontario

Jan16°FebMarAprMayJunJulAugSepOctNovDec

FAQ

What is the average temperature in Ontario in January?

January in Ontario averages a daytime high of 15.8°C and an overnight low of 3.5°C.

Is January warm or cold in Ontario?

January runs -7.3°C compared to Ontario's annual average high of 23.1°C, ranking #12 of 12 months by warmth.

What should I pack for Ontario in January?

Plan for daytime highs near 15.8°C and cooler evenings around 3.5°C.

Other months for Ontario

FebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember

January in nearby cities

Los AngelesSan FranciscoDublinSan DiegoSan JoseFresnoSacramentoLong BeachOaklandBakersfieldAnaheimSanta Ana