Pittsburgh weather in December 2025

Expect daytime maximum temperatures of 39°F in Pittsburgh, Pennsylvania in December based on long-term weather averages. There are 2 hours of sunshine per day on average with 17 days with some rainfall and typically 3.0 inches of rainfall in the month, which might fall as snow.

  • 39°F maximum daytime temperature in December in Pittsburgh39
    39°F max day temperature
  • 2 hours of sunshine per day
  • 17 days with some rainfall in December in Pittsburgh17
    17 days with some rainfall
  • 25°F minimum night-time temperature in December in Pittsburgh25
    25°F min night temperature
  • 9 hours of daylight per day in December in Pittsburgh9
    9 hours of daylight per day
  • No heat & humidity in December in Pittsburgh0
    No heat & humidity
  • 3.0 inches monthly rainfall in December in Pittsburgh3.0
    3.0 inches of monthly rainfall
  • UV (maximum) index 2 (Low) in December in Pittsburgh2
    2 (Low) UV index

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The December weather guide for Pennsylvania (Pittsburgh) 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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How cold is it in Pittsburgh in December?

Daytime temperatures usually reach 39°F in Pittsburgh in December, falling to 25°F at night.

How sunny is it in Pittsburgh in December?

There are normally 2 hours of bright sunshine each day in Pittsburgh in December - that's 24% of daylight hours.

Does it rain in Pittsburgh in December?

There are usually 17 days with some rain in Pittsburgh in December and the average monthly rainfall is 3.0 inches. Rain may fall as snow in this month.

Pittsburgh December sunrise & sunset times

Browse the sunrise and sunset times for Pittsburgh in December 2025. Select a month to view Pittsburgh sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 07:24 16:54
Tuesday, 16th December 2025 07:37 16:55
Wednesday, 31st December 2025 07:43 17:03

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