Connecticut weather in January 2025

Expect 1°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Connecticut in January. Check more long-term weather averages for Connecticut in January before you book your next holiday to Connecticut in 2025/2026.

  • 1°C maximum daytime temperature in January in Connecticut (Hartford)1
    1°C max day temperature
  • 6 hours of sunshine per day
  • 11 days with some rainfall in January in Connecticut (Hartford)11
    11 days with some rainfall
  • -9°C minimum night-time temperature in January in Connecticut (Hartford)-9
    -9°C min night temperature
  • 10 hours of daylight per day in January in Connecticut (Hartford)10
    10 hours of daylight per day
  • No heat & humidity in January in Connecticut (Hartford)0
    No heat & humidity
  • 84 mm monthly rainfall in January in Connecticut (Hartford)84
    84 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in January in Connecticut (Hartford)1
    1 (Low) UV index

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The January weather guide for Connecticut (Hartford) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Top Connecticut destinations

Below are average maximum temperatures at popular countries, regions and places in Connecticut in January. Select a holiday destination to see more weather parameters.

All Connecticut destinations

Metric (°C / mm)  |  Imperial (°F / inches)

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More about the USA

How cold is it in Connecticut in January?

Daytime temperatures usually reach 1°C in Hartford, Connecticut in January, falling to -9°C at night.

How sunny is it in Connecticut in January?

There are normally 6 hours of bright sunshine each day in Hartford, Connecticut in January - that's 58% of daylight hours.

Does it rain in Connecticut in January?

There are usually 11 days with some rain in Hartford, Connecticut in January and the average monthly rainfall is 84mm. Rain may fall as snow in this month.

Connecticut January sunrise & sunset times

Browse the sunrise and sunset times for Connecticut in January 2025. Select a month to view Connecticut sunrise and sunset times for the next 12 months. The Connecticut sunrise and sunset times shown below are for Hartford.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st January 2025 07:18 16:31
Thursday, 16th January 2025 07:15 16:47
Friday, 31st January 2025 07:04 17:05

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