Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
Pennington's January weather, with an average high temperature of 36.9°F (2.7°C) and an average low temperature of 24.3°F (-4.3°C), tends to be the coldest of the year.Humidity
The average relative humidity in January is 75%.Rainfall
January is the month with the least rainfall. Rain falls for 8.1 days and accumulates 0.87" (22mm) of precipitation.Snowfall
January through May, November and December are months with snowfall. In Pennington, during January, snow falls for 4.6 days and regularly aggregates up to 0.43" (11mm) of snow. In Pennington, New Jersey, during the entire year, snow falls for 15.6 days and aggregates up to 2.8" (71mm) of snow.Daylight
In Pennington, the average length of the day in January is 9h and 41min.On the first day of January, sunrise is at 7:21 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 5:15 pm EST.
Sunshine
The average sunshine in January is 5.1h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In January, the maximum UV index of 2 transforms into these recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
How cold is it in January?
What is the average humidity in January?
What is the driest month?
How many days does it rain in January?
How much does it snow in January?
What is the average length of the day in January?
What time are sunrise and sunset in January in Pennington?
How many hours of sunshine does Pennington have in January?
When is the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Pennington, NJ
- Average high temperature in January: 36.9°F
The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in January: 24.3°F
The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in January
Pennington, 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 (29.93"Hg).
Average wind speed in January
Pennington, NJ
- Average wind speed in January: 8.3mph
The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in January
Pennington, NJ
- Average humidity in January: 75%
The months with the highest relative humidity are February, October and December (78%).
The months with the lowest relative humidity are April and July (73%).
Average rainfall in January
Pennington, NJ
- Average rainfall in January: 0.87"
The wettest month (with the highest rainfall) is July (2.24").
The driest month (with the least rainfall) is January (0.87").
Average rainfall days in January
Pennington, NJ
- Average rainfall days in January: 8.1 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is November (7.2 days).
Average snowfall in January
Pennington, NJ
- Average snowfall in January: 0.43"
The month with the highest snowfall is February (0.71").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in January
Pennington, NJ
- Average snowfall days in January: 4.6 days
The month with the highest number of snowfall days is January (4.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Pennington, NJ
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January: 5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in January
Pennington, NJ
- Average sunshine days in January: 20.7 days
The month with the most sunshine days is January (20.7 days).
The month with the least sunshine days is July (12.3 days).
Average UV index in January
Pennington, 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, March, November and December (UV index 2).
Average cloud cover in January
Pennington, NJ
- Average cloud cover in January: 44
The months with the most cloud cover are February and December (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in January
Pennington, NJ
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Pennington, New Jersey, USA
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