January weather forecast
Heislerville, NJ

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Weather in January

January, like December, in Heislerville, New Jersey, is a wintry winter month, with an average temperature ranging between min 31.3°F (-0.4°C) and max 40.1°F (4.5°C).

Temperature

January stands out as Heislerville's coldest month, with an average high-temperature of 40.1°F (4.5°C) and a low-temperature of 31.3°F (-0.4°C).

Humidity

The average relative humidity in January in Heislerville is 74%.

Rainfall

The month with the least rainfall in Heislerville is January, when the rain falls for 7 days and typically collects 0.67" (17mm) of precipitation.

Snowfall

Months with snowfall are January through March, November and December. January is the month with the most snowfall. Snow falls for 4.7 days and accumulates 0.59" (15mm) of snow.

Daylight

In Heislerville, the average length of the day in January is 9h and 47min.
On the first day of the month, sunrise is at 7:19 am and sunset at 4:47 pm. On the last day of January, in Heislerville, sunrise is at 7:07 am and sunset at 5:18 pm EST.

Sunshine

The average sunshine in January is 5.4h.

UV index

The months with the lowest UV index in Heislerville are January, February and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum UV index of 2 in January translates into the following recommendations:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Experience reduced UV exposure by about half when donning a wide-brim hat. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
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Frequently asked questions

What is the coldest month in Heislerville?

Heislerville notes the coldest temperatures in January, with a average high of 40.1°F (4.5°C) and a low of 31.3°F (-0.4°C).

How cold does it get in Heislerville in January?

The average high-temperature and low-temperature in Heislerville during January are 40.1°F (4.5°C) and 31.3°F (-0.4°C) respectively.

What is the average humidity in January in Heislerville?

In January, the average relative humidity in Heislerville is 74%.

What is the driest month in Heislerville?

January is the month with the least rainfall in Heislerville, New Jersey. Rain falls for 7 days and accumulates 0.67" (17mm) of precipitation.

How many days does it rain in January in Heislerville?

In Heislerville, New Jersey, during January, the rain falls for 7 days and regularly aggregates up to 0.67" (17mm) of precipitation.

When does it snow the most in Heislerville?

January is the month with the most snowfall in Heislerville, New Jersey. Snow falls for 4.7 days and accumulates 0.59" (15mm) of snow.

How many days does it snow in January in Heislerville?

In Heislerville, during January, snow falls for 4.7 days and regularly aggregates up to 0.59" (15mm) of snow.

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

The average day length in January in Heislerville is 9h and 47min.

What time are sunrise and sunset in January in Heislerville?

On the first day of January, sunrise is at 7:19 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 5:18 pm EST.

How long on average sun shines in January in Heislerville?

In January, the average sunshine duration in Heislerville, New Jersey, is 5.4h.

When is the lowest UV index in Heislerville?

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

How high is the UV index in January in Heislerville?

The average daily maximum UV index in January in Heislerville is 2. A UV Index reading of 2, and below, represents 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
Heislerville, NJ

Average temperature in January - Heislerville, NJ
  • Average high temperature in January: 40.1°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (40.1°F).

  • Average low temperature in January: 31.3°F

The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (31.3°F).

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Average pressure in January
Heislerville, NJ

Average pressure in January - Heislerville, 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
Heislerville, NJ

Average wind speed in January - Heislerville, NJ
  • Average wind speed in January: 11.9mph

The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest months (with the lowest average wind speed) are July and August (8.1mph).

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Average humidity in January
Heislerville, NJ

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

The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is November (73%).

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Average rainfall in January
Heislerville, NJ

Average rainfall in January - Heislerville, NJ
  • Average rainfall in January: 0.67"

The wettest month (with the highest rainfall) is August (1.61").
The driest month (with the least rainfall) is January (0.67").

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Average rainfall days in January
Heislerville, NJ

Average rainfall days in January - Heislerville, NJ
  • Average rainfall days in January: 7 days

The month with the highest number of rainy days is July (15.2 days).
The month with the least rainy days is January (7 days).

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Average snowfall in January
Heislerville, NJ

Average snowfall in January - Heislerville, NJ
  • Average snowfall in January: 0.59"

The month with the highest snowfall is January (0.59").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in January
Heislerville, NJ

Average snowfall days in January - Heislerville, NJ
  • Average snowfall days in January: 4.7 days

The month with the highest number of snowfall days is January (4.7 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in January / Average sunshine in January - Heislerville, 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 30min).

  • Average sunshine in January: 5h and 2min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

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Average sunshine days in January
Heislerville, NJ

Average sunshine days in January - Heislerville, NJ
  • Average sunshine days in January: 19.6 days

The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is July (13.4 days).

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Average UV index in January
Heislerville, NJ

Average UV index in January - Heislerville, 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 and December (UV index 2).

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Average cloud cover in January
Heislerville, NJ

Average cloud cover in January - Heislerville, NJ
  • Average cloud cover in January: 42

The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 25).

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Average visibility in January
Heislerville, NJ

Average visibility in January - Heislerville, 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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Heislerville, New Jersey, USA

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