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Weather · December

Edison weather in December

Average highs of 45°F, lows of 28°F and 4.5 in of rain, from 30 years of weather records.

December is Edison’s 10th warmest month, with average highs of 45°F and lows of 28°F. That is 10° cooler than November, and 18° below the yearly average high.

Average high
45°F
Average low
28°F
Precipitation
4.5 in
Wet days
10
Snow
4.9 in
Sunrise · sunset
7:13 AM · 4:31 PM

December across the year

  1. 40°23°Jan
  2. 43°24°Feb
  3. 51°31°Mar
  4. 63°41°Apr
  5. 72°51°May
  6. 81°60°Jun
  7. 87°66°Jul
  8. 85°64°Aug
  9. 78°57°Sep
  10. 67°44°Oct
  11. 56°35°Nov
  12. 45°28°Dec

High and low Rain

What to wear in December

  • Cool days: a warm jacket and long pants, plus layers for the swing between morning and afternoon.
  • Freezing nights: expect frost on cars in the morning.
  • Pack an umbrella or rain jacket: rain or snow falls on about 10 days this month.
  • Snow is likely (about 5 inches on average): waterproof boots help.

December is good for

What’s on in Edison in December

See all upcoming events and school days off.

See Edison

A look around town before you go.

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The light-bulb-topped Edison Memorial Tower at the Menlo Park site. A Short shared by Jersey Jobaws.

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December compared with the months around it

MonthHighLowRain
November56°F35°F3.4 in
December45°F28°F4.5 in
January40°F23°F3.7 in

Planning a trip? See the best time to visit Edison and today’s forecast.

Questions

How hot does it get in Edison in December?

Average highs are 45°F and average lows 28°F, for a daily mean of 37°F. Individual days run hotter or colder than these 30-year averages.

Does it rain in Edison in December?

December averages 4.5 in of precipitation over about 10 days with at least 0.01 in. It is the 4th wettest month of the year.

Does it snow in Edison in December?

Yes, about 4.9 in of snow on average.

What time is sunset in Edison in December?

Around mid-December the sun rises about 7:13 AM and sets about 4:31 PM, for roughly 9.3 hours of daylight.

Is December a good time to visit Edison?

The mildest months for visiting are May, September, October. December is cold, with Christmas lights and New Year’s Eve events.

NOAA U.S. Climate Normals 1991–2020, New Brunswick 3 Se station (4.4 mi from downtown). Sunrise and sunset are calculated for December 15 at the city’s coordinates.

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