Rochester weather in December 2026

Expect daytime maximum temperatures of 36°F in Rochester, New York in December based on long-term weather averages. There are 3 hours of sunshine per day on average with 17 days with some rainfall and typically 2.5 inches of rainfall in the month, which might fall as snow.

  • 36°F maximum daytime temperature in December in Rochester36
    36°F max day temperature
  • 3 hours of sunshine per day
  • 17 days with some rainfall in December in Rochester17
    17 days with some rainfall
  • 21°F minimum night-time temperature in December in Rochester21
    21°F min night temperature
  • 9 hours of daylight per day in December in Rochester9
    9 hours of daylight per day
  • No heat & humidity in December in Rochester0
    No heat & humidity
  • 2.5 inches monthly rainfall in December in Rochester2.5
    2.5 inches of monthly rainfall
  • UV (maximum) index 1 (Low) in December in Rochester1
    1 (Low) UV index
  • 41°F sea temperature in December in Rochester41
    41°F sea temperature

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The December weather guide for New York (Rochester) 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.

Metric (°C)  |  Imperial (°F)

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More about New York

How cold is it in Rochester in December?

Daytime temperatures usually reach 43°F in Rochester in December, falling to 30°F at night.

How sunny is it in Rochester in December?

There are normally 5 hours of bright sunshine each day in Rochester in December - that's 48% of daylight hours.

How warm is the sea around Rochester in December?

The average sea temperature around Rochester in December is 46°F.

Does it rain in Rochester in December?

There are usually 11 days with some rain in Rochester in December and the average monthly rainfall is 3.7 inches. Rain may fall as snow in this month.

Rochester December sunrise & sunset times

Browse the sunrise and sunset times for Rochester in December 2026. Select a month to view Rochester sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st December 2026 07:22 16:36
Wednesday, 16th December 2026 07:36 16:36
Thursday, 31st December 2026 07:42 16:45

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