December weather forecast
Randolph, NJ

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Weather in December

December paints a wintry scene in Randolph, New Jersey, plunging to colder temperatures, averaging a high of 41°F (5°C). The shorter daylight hours, down to 9.3, contribute to the stark, winter canvas. The sight of snow-covered streets becomes a common sight once again, and residents prepare for the holiday season. This month marks full circle for the area's weather, ending the year with a return to the frosty conditions initially set in January.

Temperature

Onset of December witnesses a reduction in the average high-temperature, falling from a fresh 52°F (11.1°C) in November to a wintry 41°F (5°C). In the month of December, an average of 21.9°F (-5.6°C) marks the low-temperature in Randolph.

Rainfall

During December, Randolph regularly aggregates up to 4.06" (103mm) of precipitation. Throughout the year, 53.27" (1353mm) of rain is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 18min of daylight.
On the first day of December, sunrise is at 7:03 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:40 pm EST.
Updated: Jun 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

In December, the average high-temperature and low-temperature are 41°F (5°C) and 21.9°F (-5.6°C) respectively.

How much does it rain in December?

In Randolph, in December, 4.06" (103mm) of precipitation is typically accumulated.

What is the month with the shortest days?

With an average of 9h and 18min of daylight, December has the shortest days of the year.

What is the average length of the day in December?

The average day length in December is 9h and 18min.

When is the sunrise / sunset in December in Randolph?

In December, on the first day of the month, sunrise is at 7:03 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:40 pm EST.

Average temperature in December
Randolph, NJ

Average temperature in December - Randolph, NJ
  • Average high temperature in December: 41°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (36°F).

  • Average low temperature in December: 22°F

The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (17°F).

Average rainfall in December
Randolph, NJ

Average rainfall in December - Randolph, NJ
  • Average rainfall in December: 4.1"

The wettest month (with the highest rainfall) is September (5.1").
The driest month (with the least rainfall) is February (3.2").

Average daylight in December
Randolph, NJ

Average daylight in December - Randolph, NJ
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

Randolph, New Jersey, USA

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