January weather forecastNewton, NJ
January
Weather in January
January, like December, in Newton, New Jersey, is a wintry winter month, with an average temperature varying between 33.3°F (0.7°C) and 20.3°F (-6.5°C).Temperature
January, on average, is the coldest month, registering a high temperature of 33.3°F (0.7°C) and a low of 20.3°F (-6.5°C).Humidity
The average relative humidity in January is 79%.Rainfall
In January, the rain falls for 7.5 days. Throughout January, 1.89" (48mm) of precipitation is accumulated. Throughout the year, there are 161.1 rainfall days, and 28.98" (736mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. The months with the most snowfall are January and February, with an average 4.29" (109mm) of accumulated snow.Daylight
In Newton, the average length of the day in January is 9h and 37min.On the first day of the month, sunrise is at 7:23 am and sunset at 4:40 pm. On the last day of January, in Newton, New Jersey, sunrise is at 7:10 am and sunset at 5:14 pm EST.
Sunshine
In Newton, the average sunshine in January is 4.7h.UV index
The average daily maximum UV index in January in Newton is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for average individuals.Note: In January, an average UV index of 2 transforms into the following instructions:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Newton, NJ
- Average high temperature in January: 33.3°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (33.3°F).
- Average low temperature in January: 20.3°F
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure in January
Newton, NJ
- Average pressure in January: 30.07"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Newton, NJ
- Average wind speed in January: 7.7mph
The windiest month (with the highest average wind speed) is March (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in January
Newton, NJ
- Average humidity in January: 79%
The months with the highest relative humidity are February and December (82%).
The month with the lowest relative humidity is April (76%).
Average rainfall in January
Newton, NJ
- Average rainfall in January: 1.89"
The wettest month (with the highest rainfall) is July (3.03").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in January
Newton, NJ
- Average rainfall days in January: 7.5 days
The months with the highest number of rainy days are May and July (17.3 days).
The month with the least rainy days is January (7.5 days).
Average snowfall in January
Newton, NJ
- Average snowfall in January: 4.29"
The months with the highest snowfall are January and February (4.29").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Newton, NJ
- Average snowfall days in January: 10.3 days
The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Newton, NJ
- Average daylight in January: 9h and 36min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January: 4h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in January
Newton, NJ
- Average sunshine days in January: 16.5 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (11.3 days).
Average UV index in January
Newton, NJ
- Average UV index in January: 2
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in January
Newton, NJ
- Average cloud cover in January: 49
The month with the most cloud cover is February (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 37).
Average visibility in January
Newton, NJ
- Average visibility in January: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).





