January weather forecast
Florham Park, NJ

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Weather in January

January, like December, in Florham Park, New Jersey, is an icy winter month, with temperature in the range of an average low of 22.5°F (-5.3°C) and an average high of 35.1°F (1.7°C).

Temperature

In Florham Park, January is the month with the lowest recorded average temperatures, measuring a high of 35.1°F (1.7°C) and a low of 22.5°F (-5.3°C).

Humidity

In Florham Park, the average relative humidity in January is 77%.

Rainfall

In January, the rain falls for 8.8 days. Throughout January, 1.93" (49mm) of precipitation is accumulated. Throughout the year, there are 164.2 rainfall days, and 30.67" (779mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Florham Park, in January, during 7.6 snowfall days, 2.17" (55mm) of snow is typically accumulated. Throughout the year, in Florham Park, New Jersey, there are 26 snowfall days, and 11.61" (295mm) of snow is accumulated.

Daylight

In January, the average length of the day is 9h and 39min.
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 5:13 pm EST.

Sunshine

The average sunshine in January is 4.9h.

UV index

The months with the lowest UV index 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 health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum UV index, 2 during January, leads to the following recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. During bright days, sunglasses that offer UVA and UVB defense are recommended. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Updated: Jul 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month in Florham Park?

January is the coldest month, with the temperature often reaching an average high of 35.1°F (1.7°C) and an average low of 22.5°F (-5.3°C).

How cold is it in January?

The average high-temperature and low-temperature during January are 35.1°F (1.7°C) and 22.5°F (-5.3°C) respectively.

What is the average humidity in January in Florham Park?

In Florham Park, the average relative humidity in January is 77%.

How many days does it rain in January?

In Florham Park, New Jersey, in January, it is raining for 8.8 days, with typically 1.93" (49mm) of accumulated precipitation.

How many days does it snow in January?

In Florham Park, in January, snow falls for 7.6 days, with typically accumulated 2.17" (55mm) of snow.

What is the average length of the day in January in Florham Park?

In January, the average day length is 9h and 39min.

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 5:13 pm EST.

How many hours of sunshine does Florham Park have in January?

In January, the average sunshine duration is 4.9h.

What are the months with the lowest UV index?

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

What is the UV index intensity in January?

In January, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability 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
Florham Park, NJ

Average temperature in January - Florham Park, NJ
  • Average high temperature in January: 35.1°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 (35.1°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
Florham Park, NJ

Average pressure in January - Florham Park, 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
Florham Park, NJ

Average wind speed in January - Florham Park, 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
Florham Park, NJ

Average humidity in January - Florham Park, NJ
  • Average humidity in January: 77%

The months with the highest relative humidity are February and December (80%).
The months with the lowest relative humidity are April and August (74%).

Average rainfall in January
Florham Park, NJ

Average rainfall in January - Florham Park, NJ
  • Average rainfall in January: 1.93"

The wettest month (with the highest rainfall) is July (3.27").
The driest month (with the least rainfall) is September (1.69").

Average rainfall days in January
Florham Park, NJ

Average rainfall days in January - Florham Park, NJ
  • Average rainfall days in January: 8.8 days

The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is January (8.8 days).

Average snowfall in January
Florham Park, NJ

Average snowfall in January - Florham Park, NJ
  • Average snowfall in January: 2.17"

The month with the highest snowfall is March (3.5").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Florham Park, NJ

Average snowfall days in January - Florham Park, NJ
  • Average snowfall days in January: 7.6 days

The month with the highest number of snowfall days is January (7.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Florham Park, NJ

Average daylight in January / Average sunshine in January - Florham Park, 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
Florham Park, NJ

Average sunshine days in January - Florham Park, NJ
  • Average sunshine days in January: 16.9 days

The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is June (10.5 days).

Average UV index in January
Florham Park, NJ

Average UV index in January - Florham Park, 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
Florham Park, NJ

Average cloud cover in January - Florham Park, NJ
  • Average cloud cover in January: 46

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

Average visibility in January
Florham Park, NJ

Average visibility in January - Florham Park, NJ
  • Average visibility in January: 6mi

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

Florham Park, New Jersey, USA

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