January weather forecast and climate
Port Republic, NJ

January, like December, in Port Republic, New Jersey, is a wintry winter month, with average temperature varying between 30.4°F (-0.9°C) and 39.9°F (4.4°C).

Temperature

The coldest month is January, with an average high-temperature of 39.9°F (4.4°C) and an average low-temperature of 30.4°F (-0.9°C).

Humidity

Months with the lowest humidity are January, March, April and November, with an average relative humidity of 74%.

Rainfall

In Port Republic, New Jersey, during January, the rain falls for 4.5 days and regularly aggregates up to 0.39" (10mm) of precipitation. Throughout the year, in Port Republic, there are 86.1 rainfall days, and 6.69" (170mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March and December. January is the month with the most snowfall in Port Republic. Snow falls for 1.9 days and accumulates 0.2" (5mm) of snow.

Daylight

In January, the average length of the day in Port Republic is 9.8h.

Sunshine

The average sunshine in January is 5.2h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Port Republic, New Jersey. A UV Index reading of 2, and below, represents a minimal health hazard from the exposure to the Sun's UV radiation for average individuals.
Note: In January, the average maximum UV index of 2 translate into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the coldest month in Port Republic?

With an average high-temperature of 39.9°F (4.4°C) and an average low-temperature of 30.4°F (-0.9°C), January is the coldest month in Port Republic, New Jersey.

What is the temperature in January in Port Republic?

The average high-temperature, in January, in Port Republic, New Jersey, is 39.9°F (4.4°C), while the average low-temperature is 30.4°F (-0.9°C).

What is the least humid month in Port Republic?

Months with the lowest humidity in Port Republic are January, March, April and November, with an average relative humidity of 74%.

What is the average humidity in January in Port Republic?

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

How many days does it rain in January in Port Republic?

In January, the rain falls for 4.5 days. Throughout January, 0.39" (10mm) of precipitation is accumulated.

How much does it snow in Port Republic in January?

In Port Republic, New Jersey, in January, during 1.9 snowfall days, 0.2" (5mm) of snow is typically accumulated.

When does it snow the most in Port Republic?

January is the month with the most snowfall in Port Republic. Snow falls for 1.9 days and accumulates 0.2" (5mm) of snow.

What is the average length of the day in January in Port Republic?

In January, the average length of the day in Port Republic, New Jersey, is 9.8h.

How long on average sun shines in January in Port Republic?

In January, the average sunshine in Port Republic, New Jersey, is 5.2h.

What is the month with the lowest UV index in Port Republic?

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

What is the UV index reading in January in Port Republic?

In January, the average daily maximum UV index in Port Republic is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to the Sun's UV rays.
Average temperature in January - Port Republic, NJ
  • Average high temperature in January: 39.9°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (39.9°F).

  • Average low temperature in January: 30.4°F

The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (30.4°F).

Average pressure in January - Port Republic, 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 (29.94").

Average wind speed in January - Port Republic, NJ
  • Average wind speed in January: 11.7mph

The windiest month (with the highest average wind speed) is January (11.7mph).
The calmest month (with the lowest average wind speed) is August (8mph).

Average humidity in January - Port Republic, NJ
  • Average humidity in January: 74%

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

Average rainfall in January - Port Republic, NJ
  • Average rainfall in January: 0.39"

The wettest month (with the highest rainfall) is December (0.75").
The driest month (with the least rainfall) is September (0.28").

Average rainfall days in January - Port Republic, NJ
  • Average rainfall days in January: 4.5 days

The month with the highest number of rainy days is July (10.3 days).
The month with the least rainy days is January (4.5 days).

Average snowfall in January - Port Republic, NJ
  • Average snowfall in January: 0.2"

The month with the highest snowfall is January (0.2").
Months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in January - Port Republic, NJ
  • Average snowfall days in January: 1.9 days

The month with the highest number of snowfall days is January (1.9 days).
Months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight in January / Average sunshine in January - Port Republic, NJ
  • Average daylight in January: 9.8h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in January: 5.2h

The month with the most sunshine is July (Average sunshine: 10.8h).
The month with the least sunshine is February (Average sunshine: 4.9h).

Average sunshine days in January - Port Republic, NJ
  • Average sunshine days in January: 24.3 days

The month with the most sunshine days is January (24.3 days).
The month with the least sunshine days is August (18.2 days).

Average UV index in January - Port Republic, NJ
  • Average UV index in January: 2

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

Average cloud cover in January - Port Republic, NJ
  • Average cloud cover in January: 42

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

Average visibility in January - Port Republic, NJ
  • Average visibility in January: 6mi

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