December weather forecast
Cranford, NJ

Weather in December

December, the first month of the winter, in Cranford, is also a wintry month, with average temperature ranging between min 32.4°F (0.2°C) and max 41.9°F (5.5°C).

Temperature

In Cranford, New Jersey, the average high-temperature drops, from a cool 50.9°F (10.5°C) in November, to a wintry 41.9°F (5.5°C). The average low-temperature, in Cranford, is 32.4°F (0.2°C).

Humidity

Months with the highest humidity in Cranford, New Jersey, are February and December, with an average relative humidity of 77%.

Rainfall

In December, the rain falls for 7.4 days. Throughout December, 0.83" (21mm) of precipitation is accumulated. In Cranford, New Jersey, during the entire year, the rain falls for 117.5 days and collects up to 9.17" (233mm) of precipitation.

Snowfall

Months with snowfall in Cranford are January through April, November and December. In Cranford, during 2.5 snowfall days, 0.2" (5mm) of snow is typically accumulated. In Cranford, during the entire year, snow falls for 16.7 days, and aggregates up to 1.97" (50mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9.3h of daylight.

Sunshine

The average sunshine in Cranford is 4.9h.

UV index

Months with the lowest UV index in Cranford, New Jersey, are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 2 transform into the following instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the most humid month in Cranford?

February and December, with an average relative humidity of 77%, are most humid months.

What is the average humidity in December in Cranford?

In December, the average relative humidity in Cranford is 77%.

How much does it rain in Cranford in December?

In Cranford, New Jersey, in December, it is raining for 7.4 days, with typically 0.83" (21mm) of accumulated precipitation.

How many days does it snow in December in Cranford?

In Cranford, New Jersey, during December, snow falls for 2.5 days and regularly aggregates up to 0.2" (5mm) of snow.

What is the month with the shortest days in Cranford?

December has the shortest days of the year, with an average of 9.3h of daylight.

What is the average length of the day in December in Cranford?

The average length of the day in December is 9.3h.

How long on average sun shines in December in Cranford?

The average sunshine in December in Cranford, New Jersey, is 4.9h.

What is the month with the lowest UV index in Cranford?

Months with the lowest UV index in Cranford are January through March, November and December, with an average maximum UV index of 2.

What is the UV index reading in December in Cranford?

The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health threat from unprotected exposure to the UV radiation.

Average temperature in December
Cranford, NJ

Average temperature in December - Cranford, NJ
  • Average high temperature in December: 41.9°F

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (36°F).

  • Average low temperature in December: 32.4°F

The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (24.6°F).

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Average pressure in December
Cranford, NJ

Average pressure in December - Cranford, NJ
  • Average pressure in December: 30.08"

The month with the highest atmospheric pressure is November (30.11").
The month with the lowest atmospheric pressure is June (29.93").

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Average wind speed in December
Cranford, NJ

Average wind speed in December - Cranford, NJ
  • Average wind speed in December: 8.6mph

The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is July (6mph).

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Average humidity in December
Cranford, NJ

Average humidity in December - Cranford, NJ
  • Average humidity in December: 77%

Months with the highest relative humidity are February and December (77%).
Months with the lowest relative humidity are April and August (72%).

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Average rainfall in December
Cranford, NJ

Average rainfall in December - Cranford, NJ
  • Average rainfall in December: 0.83"

The wettest month (with the highest rainfall) is July (1.22").
The driest month (with the least rainfall) is September (0.43").

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Average rainfall days in December
Cranford, NJ

Average rainfall days in December - Cranford, NJ
  • Average rainfall days in December: 7.4 days

The month with the highest number of rainy days is July (13.9 days).
The month with the least rainy days is January (5.9 days).

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Average snowfall in December
Cranford, NJ

Average snowfall in December - Cranford, NJ
  • Average snowfall in December: 0.2"

The month with the highest snowfall is March (0.75").
Months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Cranford, NJ

Average snowfall days in December - Cranford, NJ
  • Average snowfall days in December: 2.5 days

The month with the highest number of snowfall days is February (5.1 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
Cranford, NJ

Average daylight in December / Average sunshine in December - Cranford, NJ
  • Average daylight in December: 9.3h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in December: 4.9h

The month with the most sunshine is July (Average sunshine: 10.6h).
The month with the least sunshine is February (Average sunshine: 4.7h).

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Average sunshine days in December
Cranford, NJ

Average sunshine days in December - Cranford, NJ
  • Average sunshine days in December: 20.6 days

The month with the most sunshine days is January (22.1 days).
The month with the least sunshine days is June (13.5 days).

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Average UV index in December
Cranford, NJ

Average UV index in December - Cranford, NJ
  • Average UV index in December: 2

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in December
Cranford, NJ

Average cloud cover in December - Cranford, NJ
  • Average cloud cover in December: 47

Months with the most cloud cover are February, March and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 30).

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Average visibility in December
Cranford, NJ

Average visibility in December - Cranford, NJ
  • Average visibility in December: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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