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
January, noted for its average high-temperature of 34.9°F (1.6°C) and an average low-temperature of 22.6°F (-5.2°C), is considered the coldest month.Humidity
In January, the average relative humidity is 76%.Rainfall
The month with the least rainfall in Caldwell is January, when the rain falls for 7.8 days and typically collects 1.57" (40mm) of precipitation.Snowfall
Months with snowfall in Caldwell are January through May, November and December. In Caldwell, in January, during 6.6 snowfall days, 1.89" (48mm) of snow is typically accumulated. Throughout the year, in Caldwell, there are 24.3 snowfall days, and 9.96" (253mm) of snow is accumulated.Daylight
The average length of the day in January in Caldwell is 9h and 38min.On the first day of the month, sunrise is at 7:21 am and sunset at 4:39 pm. On the last day of January, sunrise is at 7:08 am and sunset at 5:12 pm EST.
Sunshine
In Caldwell, the average sunshine in January is 5h.UV index
The months with the lowest UV index in Caldwell are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In January, a regular UV index of 2 translates into these guidelines:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month in Caldwell?
How cold is January in Caldwell?
What is the average humidity in January in Caldwell?
What is the driest month in Caldwell?
How many days does it rain in January in Caldwell?
How much does it snow in Caldwell in January?
What is the average length of the day in January in Caldwell?
What time are sunrise and sunset in January in Caldwell?
How long on average sun shines in January in Caldwell?
When is the lowest UV index in Caldwell?
How high is the UV index in January in Caldwell?
Average temperature in January
Caldwell, NJ
- Average high temperature in January: 34.9°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (34.9°F).
- Average low temperature in January: 22.6°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure in January
Caldwell, NJ
- Average pressure in January: 30.06"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
Caldwell, NJ
- Average wind speed in January: 8.3mph
The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in January
Caldwell, NJ
- Average humidity in January: 76%
The months with the highest relative humidity are February and December (79%).
The months with the lowest relative humidity are April and August (73%).
Average rainfall in January
Caldwell, NJ
- Average rainfall in January: 1.57"
The wettest month (with the highest rainfall) is July (3.15").
The driest month (with the least rainfall) is January (1.57").
Average rainfall days in January
Caldwell, NJ
- Average rainfall days in January: 7.8 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in January
Caldwell, NJ
- Average snowfall in January: 1.89"
The month with the highest snowfall is March (3.58").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in January
Caldwell, NJ
- Average snowfall days in January: 6.6 days
The month with the highest number of snowfall days is February (7 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Caldwell, NJ
- Average daylight in January: 9h and 4min
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: 5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in January
Caldwell, NJ
- Average sunshine days in January: 18.5 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (10.7 days).
Average UV index in January
Caldwell, 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, March, November and December (UV index 2).
Average cloud cover in January
Caldwell, NJ
- Average cloud cover in January: 45
The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in January
Caldwell, 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).
Caldwell, New Jersey, USA
Weather forecast for your location
2. Allow the app to use your location