January weather forecast
East Hanover, NJ

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Weather in January

January, like December, in East Hanover, New Jersey, is an icy winter month, with an average temperature varying between 22.5°F (-5.3°C) and 34.9°F (1.6°C).

Temperature

January stands out as East Hanover's coldest month, with temperatures ranging between an average high of 34.9°F (1.6°C) and a low of 22.5°F (-5.3°C).

Humidity

In East Hanover, the average relative humidity in January is 77%.

Rainfall

The months with the least rainfall are January, February and September Rain falls for 8.3 days and accumulates 1.57" (40mm) of rain.

Snowfall

Months with snowfall are January through May, November and December. In East Hanover, in January, snow falls for 6.6 days, with typically accumulated 1.77" (45mm) of snow. Throughout the year, there are 24 snowfall days, and 9.72" (247mm) of snow is accumulated.

Daylight

In January, the average length of the day is 9h and 38min.
On the first day of the month, sunrise is at 7:21 am and sunset at 4:40 pm. On the last day of January, sunrise is at 7:08 am and sunset at 5:12 pm EST.

Sunshine

In East Hanover, New Jersey, the average sunshine in January is 4.9h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 2 during January translates into the following recommendations:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Take note! UV radiation from the Sun can double in intensity due to snow reflection.

Frequently asked questions

What part of the year is the coldest?

January, known for its average high temperature of 34.9°F (1.6°C) and an average low temperature of 22.5°F (-5.3°C), is the coldest month.

How cold is January?

In January, in East Hanover, the average high-temperature is 34.9°F (1.6°C), and the average low-temperature is 22.5°F (-5.3°C).

What is the average humidity in January?

In East Hanover, the average relative humidity in January is 77%.

What is the driest month?

January, February and September are months with the least rain when the rain falls for 8.3 days and typically aggregates up to 1.57" (40mm) of rain.

How much does it rain in January?

In East Hanover, during January, the rain falls for 8.3 days and regularly aggregates up to 1.57" (40mm) of precipitation.

How much does it snow in January?

In January, it is snowing for 6.6 days. Throughout January, 1.77" (45mm) of snow is accumulated.

What is the average length of the day in January?

In East Hanover, the average day length in January is 9h and 38min.

What time are sunrise and sunset in January?

On the first day of January, sunrise is at 7:21 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 5:12 pm EST.

How many hours of sunshine does East Hanover have in January?

In January, the average sunshine duration is 4.9h.

What is the month with the lowest UV index?

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

What is the UV index reading in January?

The average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a low health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
East Hanover, NJ

Average temperature in January - East Hanover, NJ
  • Average high temperature in January: 34.9°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (34.9°F).

  • Average low temperature in January: 22.5°F

The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

Average pressure in January
East Hanover, NJ

Average pressure in January - East Hanover, NJ
  • Average pressure in January: 30.07"Hg

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

Average wind speed in January
East Hanover, NJ

Average wind speed in January - East Hanover, NJ
  • Average wind speed in January: 8.3mph

The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in January
East Hanover, NJ

Average humidity in January - East Hanover, NJ
  • Average humidity in January: 77%

The months with the highest relative humidity are February, October and December (80%).
The month with the lowest relative humidity is April (74%).

Average rainfall in January
East Hanover, NJ

Average rainfall in January - East Hanover, NJ
  • Average rainfall in January: 1.57"

The wettest month (with the highest rainfall) is July (3.19").
The driest months (with the least rainfall) are January, February and September (1.57").

Average rainfall days in January
East Hanover, NJ

Average rainfall days in January - East Hanover, NJ
  • Average rainfall days in January: 8.3 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (8.3 days).

Average snowfall in January
East Hanover, NJ

Average snowfall in January - East Hanover, NJ
  • Average snowfall in January: 1.77"

The month with the highest snowfall is March (3.7").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in January
East Hanover, NJ

Average snowfall days in January - East Hanover, NJ
  • Average snowfall days in January: 6.6 days

The month with the highest number of snowfall days is February (6.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in January /
Average sunshine in January
East Hanover, NJ

Average daylight in January / Average sunshine in January - East Hanover, NJ
  • Average daylight in January: 9h and 4min

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).

  • Average sunshine in January: 4h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in January
East Hanover, NJ

Average sunshine days in January - East Hanover, NJ
  • Average sunshine days in January: 18.3 days

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is July (10.9 days).

Average UV index in January
East Hanover, NJ

Average UV index in January - East Hanover, NJ
  • Average UV index in January: 2

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

Average cloud cover in January
East Hanover, NJ

Average cloud cover in January - East Hanover, NJ
  • Average cloud cover in January: 46

The months with the most cloud cover are February, March and December (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 34).

Average visibility in January
East Hanover, NJ

Average visibility in January - East Hanover, NJ
  • Average visibility in January: 6mi

The months with the highest visibility are January, February, March, April, July, August, October, November and December (6mi).
The months with the lowest visibility are May, June and September (5mi).

East Hanover, New Jersey, USA

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