ClimateAverages

Janesville Weather in January

JanFebMarAprMayJunJulAugSepOctNovDec
January daytime high
-3.1°C
January overnight low
-12.5°C
January average
-7.8°C

In January, Janesville typically sees daytime highs of -3.1°C and overnight lows around -12.5°C. Compared to the annual average high of 13.9°C, January runs -17.0°C.

vs. annual avg high
-17.0°C
Rank among 12 months
#12 warmest
Hottest year overall
2011

Where January ranks in Janesville

Jan-3°FebMarAprMayJunJulAugSepOctNovDec

FAQ

What is the average temperature in Janesville in January?

January in Janesville averages a daytime high of -3.1°C and an overnight low of -12.5°C.

Is January warm or cold in Janesville?

January runs -17.0°C compared to Janesville's annual average high of 13.9°C, ranking #12 of 12 months by warmth.

What should I pack for Janesville in January?

Plan for daytime highs near -3.1°C and cooler evenings around -12.5°C.

Other months for Janesville

FebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember

January in nearby cities

MilwaukeeMadisonGreen BayKenoshaRacineAppletonWaukeshaEau ClaireOshkoshWest AllisLa CrosseNorth La Crosse