January weather forecast
Madison, NJ

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Weather in January

January, like December, in Madison, New Jersey, is another cold 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

January is the month when Madison experiences its coldest temperatures, averaging a high of 35.1°F (1.7°C) and a low of 22.5°F (-5.3°C).

Humidity

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

Rainfall

In Madison, in January, during 8.8 rainfall days, 1.93" (49mm) of precipitation is typically 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 January, in Madison, it is snowing for 7.6 days. Throughout January, 2.17" (55mm) of snow is accumulated. In Madison, during the entire year, snow falls for 26 days and aggregates up to 11.61" (295mm) of snow.

Daylight

The average length of the day in January 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

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Madison. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: In January, the maximum UV index of 2 transforms into these recommendations:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
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Frequently asked questions

What are the coldest months in Madison?

January, marked by an average high-temperature of 35.1°F (1.7°C) and a low-temperature of 22.5°F (-5.3°C), is the coldest month in Madison.

How cold is it in Madison in January?

In Madison, 35.1°F (1.7°C) is the average high-temperature and 22.5°F (-5.3°C) is the average low-temperature during January.

What is the average humidity in January in Madison?

In January, the average relative humidity is 77%.

How much does it rain in Madison in January?

In Madison, during January, the rain falls for 8.8 days and regularly aggregates up to 1.93" (49mm) of precipitation.

How much does it snow in Madison in January?

In Madison, New Jersey, in January, during 7.6 snowfall days, 2.17" (55mm) of snow is typically accumulated.

How many hours of daylight does Madison have in January?

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

What time are sunrise and sunset in January in Madison?

On the first day of January in Madison, 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 long on average sun shines in January in Madison?

In January, the average sunshine duration in Madison, New Jersey, is 4.9h.

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

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

How high is the UV index in January in Madison?

In Madison, the average daily maximum UV index in January is 2. A UV Index value 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
Madison, NJ

Average temperature in January - Madison, 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).

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Average pressure in January
Madison, NJ

Average pressure in January - Madison, 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).

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Average wind speed in January
Madison, NJ

Average wind speed in January - Madison, 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).

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Average humidity in January
Madison, NJ

Average humidity in January - Madison, 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%).

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Average rainfall in January
Madison, NJ

Average rainfall in January - Madison, 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").

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Average rainfall days in January
Madison, NJ

Average rainfall days in January - Madison, 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).

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Average snowfall in January
Madison, NJ

Average snowfall in January - Madison, 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").

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Average snowfall days in January
Madison, NJ

Average snowfall days in January - Madison, 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).

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Average daylight in January /
Average sunshine in January
Madison, NJ

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

The month with the longest days is June (Average daylight: 15h and 0min).
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).

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Average sunshine days in January
Madison, NJ

Average sunshine days in January - Madison, 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).

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Average UV index in January
Madison, NJ

Average UV index in January - Madison, 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).

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Average cloud cover in January
Madison, NJ

Average cloud cover in January - Madison, 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).

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Average visibility in January
Madison, NJ

Average visibility in January - Madison, 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).

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Madison, New Jersey, USA

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