January weather forecast
Smithville, NJ

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Weather in January

January, the same as December, is a wintry winter month in Smithville, New Jersey, with an average temperature ranging between max 39.7°F (4.3°C) and min 30°F (-1.1°C).

Temperature

In Smithville, the lowest average temperatures are observed in January, with a high of 39.7°F (4.3°C) and a low of 30°F (-1.1°C).

Humidity

The months with the lowest humidity in Smithville are January, March, April and November, with an average relative humidity of 74%.

Rainfall

In Smithville, during January, the rain falls for 9.5 days and regularly aggregates up to 1.89" (48mm) of precipitation. In Smithville, during the entire year, the rain falls for 149.6 days and collects up to 28.9" (734mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. The month with the most snowfall is January, when snow falls for 4.4 days and typically aggregates up to 1.73" (44mm) of snow.

Daylight

The average length of the day in January is 9h and 46min.
On the first day of the month, sunrise is at 7:18 am and sunset at 4:44 pm. On the last day of January, in Smithville, New Jersey, sunrise is at 7:06 am and sunset at 5:16 pm EST.

Sunshine

In January, the average sunshine in Smithville is 5.3h.

UV index

The months with the lowest UV index in Smithville are January, February and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the average person.
Note: In January, the maximum UV index of 2 translates into these guidelines:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
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Frequently asked questions

What is the coldest time of year in Smithville?

January, noted for its average high-temperature of 39.7°F (4.3°C) and an average low-temperature of 30°F (-1.1°C), is considered the coldest month in Smithville, New Jersey.

Is January cold in Smithville?

Smithville in January has an average high-temperature of 39.7°F (4.3°C) and an average low-temperature of 30°F (-1.1°C).

What is the least humid month in Smithville?

January, March, April and November, with an average relative humidity of 74%, are the least humid months in Smithville.

What is the average humidity in January in Smithville?

The average relative humidity in January in Smithville, New Jersey, is 74%.

How many days does it rain in January in Smithville?

In Smithville, in January, it is raining for 9.5 days, with typically 1.89" (48mm) of accumulated precipitation.

When does it snow the most in Smithville?

The month with the most snowfall is January, when snow falls for 4.4 days and typically aggregates up to 1.73" (44mm) of snow.

How many days does it snow in January in Smithville?

In Smithville, New Jersey, during January, snow falls for 4.4 days and regularly aggregates up to 1.73" (44mm) of snow.

How many hours of daylight does Smithville have in January?

In January, the average day length is 9h and 46min.

When is the sunrise / sunset in January in Smithville?

In January, on the first day of the month, sunrise is at 7:18 am and sunset at 4:44 pm. On the last day of the month, in Smithville, sunrise is at 7:06 am and sunset at 5:16 pm EST.

How long on average sun shines in January in Smithville?

The average sunshine duration in January in Smithville is 5.3h.

When is the lowest UV index in Smithville?

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Smithville, New Jersey.

How high is the UV index in January in Smithville?

In Smithville, New Jersey, 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
Smithville, NJ

Average temperature in January - Smithville, NJ
  • Average high temperature in January: 39.7°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (39.7°F).

  • Average low temperature in January: 30°F

The month with the highest average low temperature is July (71.1°F).
The coldest month (with the lowest average low temperature) is January (30°F).

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Average pressure in January
Smithville, NJ

Average pressure in January - Smithville, NJ
  • Average pressure in January: 30.08"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in January
Smithville, NJ

Average wind speed in January - Smithville, NJ
  • Average wind speed in January: 11.1mph

The windiest months (with the highest average wind speed) are January and February (11.1mph).
The calmest month (with the lowest average wind speed) is August (7.6mph).

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Average humidity in January
Smithville, NJ

Average humidity in January - Smithville, NJ
  • Average humidity in January: 74%

The months with the highest relative humidity are May and June (80%).
The months with the lowest relative humidity are January, March, April and November (74%).

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Average rainfall in January
Smithville, NJ

Average rainfall in January - Smithville, NJ
  • Average rainfall in January: 1.89"

The wettest month (with the highest rainfall) is December (3.07").
The driest month (with the least rainfall) is September (1.73").

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Average rainfall days in January
Smithville, NJ

Average rainfall days in January - Smithville, NJ
  • Average rainfall days in January: 9.5 days

The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is November (8.9 days).

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Average snowfall in January
Smithville, NJ

Average snowfall in January - Smithville, NJ
  • Average snowfall in January: 1.73"

The month with the highest snowfall is January (1.73").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in January
Smithville, NJ

Average snowfall days in January - Smithville, NJ
  • Average snowfall days in January: 4.4 days

The month with the highest number of snowfall days is January (4.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in January / Average sunshine in January - Smithville, NJ
  • Average daylight in January: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in January: 5h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

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Average sunshine days in January
Smithville, NJ

Average sunshine days in January - Smithville, NJ
  • Average sunshine days in January: 17.8 days

The month with the most sunshine days is November (19.6 days).
The months with the least sunshine days are May and July (14.1 days).

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Average UV index in January
Smithville, NJ

Average UV index in January - Smithville, NJ
  • Average UV index in January: 2

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

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Average cloud cover in January
Smithville, NJ

Average cloud cover in January - Smithville, NJ
  • Average cloud cover in January: 43

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 27).

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Average visibility in January
Smithville, NJ

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

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

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Smithville, New Jersey, USA

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