ClimateAverages

Castle Rock Weather in January

JanFebMarAprMayJunJulAugSepOctNovDec
January daytime high
5.5°C
January overnight low
-10.6°C
January average
-2.6°C

In January, Castle Rock typically sees daytime highs of 5.5°C and overnight lows around -10.6°C. Compared to the annual average high of 16.8°C, January runs -11.3°C.

vs. annual avg high
-11.3°C
Rank among 12 months
#12 warmest
Hottest year overall
1933

Where January ranks in Castle Rock

Jan5°FebMarAprMayJunJulAugSepOctNovDec

FAQ

What is the average temperature in Castle Rock in January?

January in Castle Rock averages a daytime high of 5.5°C and an overnight low of -10.6°C.

Is January warm or cold in Castle Rock?

January runs -11.3°C compared to Castle Rock's annual average high of 16.8°C, ranking #12 of 12 months by warmth.

What should I pack for Castle Rock in January?

Plan for daytime highs near 5.5°C and cooler evenings around -10.6°C.

Other months for Castle Rock

FebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember

January in nearby cities

DenverColorado SpringsAuroraFort CollinsLakewoodThorntonArvadaWestminsterCentennialPuebloBoulderGreeley