January weather forecast and climate
Manville, NJ

Weather in January

January, like December, in Manville, New Jersey, is another cold winter month, with average temperature varying between 35.6°F (2°C) and 23.2°F (-4.9°C).

Temperature

With an average high-temperature of 35.6°F (2°C) and an average low-temperature of 23.2°F (-4.9°C), January is the coldest month.

Humidity

In Manville, New Jersey, the average relative humidity is 76%.

Rainfall

In January, in Manville, the rain falls for 9.2 days. Throughout January, 1.81" (46mm) of precipitation is accumulated. In Manville, New Jersey, during the entire year, the rain falls for 157.9 days and collects up to 28.19" (716mm) of precipitation.

Snowfall

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

Daylight

In Manville, New Jersey, the average length of the day in January is 9.7h.

Sunshine

In January, the average sunshine is 5h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Manville. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to the UV radiation for average individuals.
Note: The average daily UV index of 2 in January transform into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. 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 coldest month in Manville?

The coldest month in Manville is January, with an average high-temperature of 35.6°F (2°C) and an average low-temperature of 23.2°F (-4.9°C).

What is the temperature in January in Manville?

The average high-temperature, in January, in Manville, New Jersey, is 35.6°F (2°C), while the average low-temperature is 23.2°F (-4.9°C).

What is the average humidity in January in Manville?

In Manville, New Jersey, the average relative humidity in January is 76%.

How many days does it rain in January in Manville?

In Manville, during January, the rain falls for 9.2 days and regularly aggregates up to 1.81" (46mm) of precipitation.

How much does it snow in Manville in January?

In Manville, New Jersey, during January, snow falls for 6.8 days and regularly aggregates up to 1.97" (50mm) of snow.

How many hours of daylight does Manville have in January?

In January, the average length of the day in Manville is 9.7h.

How long on average sun shines in January in Manville?

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

What are the months with the lowest UV index in Manville?

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?

In January, the average daily maximum UV index in Manville, New Jersey, is 2. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to the UV radiation.

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"

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 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%

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").
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).
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: 9.7h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in January: 5h

The month with the most sunshine is July (Average sunshine: 10.4h).
The month with the least sunshine is February (Average sunshine: 4.6h).

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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

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 January
Manville, NJ

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

Months with the most cloud cover are February and December (Cloud cover 49).
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

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

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