January weather forecast
Manville, NJ

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Weather in January

January, the same as December, is a wintry winter month in Manville, New Jersey, with temperature in the range of an average high of 35.6°F (2°C) and an average low of 23.2°F (-4.9°C).

Temperature

The lowest temperatures are recorded in January, with averages reaching a high of 35.6°F (2°C) and a low of 23.2°F (-4.9°C).

Humidity

The average relative humidity in January is 76%.

Rainfall

In Manville, in January, during 9.2 rainfall days, 1.81" (46mm) of precipitation is typically accumulated. Throughout the year, there are 157.9 rainfall days, and 28.19" (716mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Manville are January through May, October through December. In January, in Manville, it is snowing for 6.8 days. Throughout January, 1.97" (50mm) of snow is accumulated. Throughout the year, in Manville, there are 23.8 snowfall days, and 9.53" (242mm) of snow is accumulated.

Daylight

In January, the average length of the day in Manville is 9h and 40min.
On the first day of the month, sunrise is at 7:21 am and sunset at 4:41 pm. On the last day of January, in Manville, New Jersey, sunrise is at 7:08 am and sunset at 5:14 pm EST.

Sunshine

The average sunshine in January in Manville is 5h.

UV index

The months with the lowest UV index in Manville are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for average individuals.
Note: In January, the maximum UV index of 2 translates into these guidelines:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
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Frequently asked questions

What are the coldest months in Manville?

Temperature records in Manville, New Jersey, mark January as the coldest month, with highs averaging 35.6°F (2°C) and lows at 23.2°F (-4.9°C).

How cold is January in Manville?

An average high-temperature, in January, in Manville, is 35.6°F (2°C) and the average low-temperature is 23.2°F (-4.9°C).

What is the average humidity in January in Manville?

The average relative humidity in January is 76%.

How many days does it rain in January in Manville?

In Manville, New Jersey, in January, it is raining for 9.2 days, with typically 1.81" (46mm) of accumulated precipitation.

How much does it snow in Manville in January?

In January, in Manville, it is snowing for 6.8 days. Throughout January, 1.97" (50mm) of snow is accumulated.

What is the average length of the day in January in Manville?

In Manville, New Jersey, the average day length in January is 9h and 40min.

When is the sunrise / sunset in January in Manville?

On the first day of January in Manville, New Jersey, sunrise is at 7:21 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 5:14 pm EST.

How long on average sun shines in January in Manville?

In January, the average sunshine duration in Manville, New Jersey, is 5h.

When is the lowest UV index in Manville?

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

What is the UV index reading in January in Manville?

The average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a low health threat from unsafe 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
Manville, NJ

Average temperature in January - Manville, NJ
  • Average high temperature in January: 35.6°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (35.6°F).

  • Average low temperature in January: 23.2°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).

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Average pressure in January
Manville, NJ

Average pressure in January - Manville, 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
Manville, NJ

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

The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in January
Manville, NJ

Average humidity in January - Manville, NJ
  • Average humidity in January: 76%

The months with the highest relative humidity are February, October and December (79%).
The month with the lowest relative humidity is April (74%).

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Average rainfall in January
Manville, NJ

Average rainfall in January - Manville, NJ
  • Average rainfall in January: 1.81"

The wettest month (with the highest rainfall) is December (2.91").
The driest month (with the least rainfall) is September (1.54").

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Average rainfall days in January
Manville, NJ

Average rainfall days in January - Manville, NJ
  • Average rainfall days in January: 9.2 days

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (9 days).

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Average snowfall in January
Manville, NJ

Average snowfall in January - Manville, NJ
  • Average snowfall in January: 1.97"

The month with the highest snowfall is March (2.83").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Manville, NJ

Average snowfall days in January - Manville, NJ
  • Average snowfall days in January: 6.8 days

The month with the highest number of snowfall days is January (6.8 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
Manville, NJ

Average daylight in January / Average sunshine in January - Manville, 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: 5h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in January
Manville, NJ

Average sunshine days in January - Manville, NJ
  • Average sunshine days in January: 18.2 days

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is June (11.7 days).

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Average UV index in January
Manville, NJ

Average UV index in January - Manville, 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
Manville, NJ

Average cloud cover in January - Manville, NJ
  • Average cloud cover in January: 45

The months with the most cloud cover are February and December (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
Manville, NJ

Average visibility in January - Manville, NJ
  • Average visibility in January: 6mi

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

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Manville, New Jersey, USA

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