January weather forecast and climate
Edison, NJ

January, like December, in Edison, New Jersey, is a wintry winter month, with average temperature varying between 36.7°F (2.6°C) and 25°F (-3.9°C).

Temperature

With an average high-temperature of 36.7°F (2.6°C) and an average low-temperature of 25°F (-3.9°C), January is the coldest month.

Humidity

The average relative humidity in January is 75%.

Rainfall

In Edison, New Jersey, during 8.3 rainfall days, 1.57" (40mm) of precipitation is typically accumulated. Throughout the year, in Edison, New Jersey, there are 149.9 rainfall days, and 26.93" (684mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall. In Edison, New Jersey, in January, during 5.6 snowfall days, 1.54" (39mm) of snow is typically accumulated. Throughout the year, in Edison, there are 18.6 snowfall days, and 7.64" (194mm) of snow is accumulated.

Daylight

The average length of the day in Edison, New Jersey, is 9.7h.

Sunshine

In January, the average sunshine is 5.1h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from the exposure to the Sun's UV radiation for the average person.
Note: In January, the average maximum UV index of 2 translate into the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. 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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the coldest month in Edison?

January is the coldest month, with an average high-temperature of 36.7°F (2.6°C) and an average low-temperature of 25°F (-3.9°C).

What is the temperature in January in Edison?

The average high-temperature, in January, in Edison, New Jersey, is 36.7°F (2.6°C), while the average low-temperature is 25°F (-3.9°C).

What is the average humidity in January in Edison?

In January, the average relative humidity in Edison, New Jersey, is 75%.

How many days does it rain in January in Edison?

In Edison, in January, during 8.3 rainfall days, 1.57" (40mm) of precipitation is typically accumulated.

How many days does it snow in January in Edison?

In Edison, during January, snow falls for 5.6 days and regularly aggregates up to 1.54" (39mm) of snow.

How many hours of daylight does Edison have in January?

The average length of the day in January is 9.7h.

How many hours of sunshine does Edison have in January?

In Edison, New Jersey, the average sunshine in January is 5.1h.

When is the lowest UV index in Edison?

Months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.

What is the UV index intensity in January in Edison?

In Edison, New Jersey, the average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from unprotected exposure to the UV radiation.
Average temperature in January - Edison, NJ
  • Average high temperature in January: 2.6°C

The warmest month (with the highest average high temperature) is July (28.9°C).
The month with the lowest average high temperature is January (2.6°C).

  • Average low temperature in January: -3.9°C

The month with the highest average low temperature is July (20.1°C).
The coldest month (with the lowest average low temperature) is January (-3.9°C).

Average pressure in January - Edison, NJ
  • Average pressure in January: 1018.3mbar

The month with the highest atmospheric pressure is November (1019.6mbar).
The month with the lowest atmospheric pressure is June (1013.7mbar).

Average wind speed in January - Edison, NJ
  • Average wind speed in January: 14.7km/h

The windiest month (with the highest average wind speed) is March (14.9km/h).
The calmest months (with the lowest average wind speed) are July and August (9.7km/h).

Average humidity in January - Edison, NJ
  • Average humidity in January: 75%

Months with the highest relative humidity are February, October and December (77%).
The month with the lowest relative humidity is August (72%).

Average rainfall in January - Edison, NJ
  • Average rainfall in January: 40mm

The wettest month (with the highest rainfall) is July (78mm).
The driest month (with the least rainfall) is September (39mm).

Average rainfall days in January - Edison, NJ
  • Average rainfall days in January: 8.3 days

The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (8.3 days).

Average snowfall in January - Edison, NJ
  • Average snowfall in January: 39mm

The month with the highest snowfall is March (83mm).
Months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in January - Edison, NJ
  • Average snowfall days in January: 5.6 days

The month with the highest number of snowfall days is January (5.6 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in January / Average sunshine in January - Edison, 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: 5.1h

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

Average sunshine days in January - Edison, NJ
  • Average sunshine days in January: 19 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (11.3 days).

Average UV index in January - Edison, 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, March, November and December (UV index 2).

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

Months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in January - Edison, NJ
  • Average visibility in January: 9km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).