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
In Cedar Knolls, January is the month with the lowest recorded average temperatures, measuring a high of 34.9°F (1.6°C) and a low of 22.5°F (-5.3°C).Humidity
In Cedar Knolls, the average relative humidity in January is 77%.Rainfall
January, February and September are months with the least rain in Cedar Knolls, New Jersey, when the rain falls for 8.3 days and typically aggregates up to 1.57" (40mm) of rain.Snowfall
Months with snowfall in Cedar Knolls are January through May, November and December. In January, in Cedar Knolls, it is snowing for 6.6 days. Throughout January, 1.77" (45mm) of snow is accumulated. In Cedar Knolls, New Jersey, during the entire year, snow falls for 24 days and aggregates up to 9.72" (247mm) of snow.Daylight
In January, the average length of the day in Cedar Knolls, New Jersey, is 9h and 38min.On the first day of January, sunrise is at 7:22 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 5:13 pm EST.
Sunshine
The average sunshine in January in Cedar Knolls is 4.9h.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 value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index of 2 during January leads to these instructions:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Frequently asked questions
What time of the year is the coldest in Cedar Knolls?
How cold is January in Cedar Knolls?
What is the average humidity in January in Cedar Knolls?
What is the driest month in Cedar Knolls?
How much does it rain in Cedar Knolls in January?
How many days does it snow in January in Cedar Knolls?
How many hours of daylight does Cedar Knolls have in January?
When is the sunrise / sunset in January in Cedar Knolls?
How many hours of sunshine does Cedar Knolls have in January?
When is the lowest UV index in Cedar Knolls?
How high is the UV index in January in Cedar Knolls?
Average temperature in January
Cedar Knolls, NJ
- Average high temperature in January: 34.9°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (34.9°F).
- Average low temperature in January: 22.5°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in January
Cedar Knolls, 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
Cedar Knolls, NJ
- Average wind speed in January: 8.3mph
The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in January
Cedar Knolls, NJ
- Average humidity in January: 77%
The months with the highest relative humidity are February, October and December (80%).
The month with the lowest relative humidity is April (74%).
Average rainfall in January
Cedar Knolls, NJ
- Average rainfall in January: 1.57"
The wettest month (with the highest rainfall) is July (3.19").
The driest months (with the least rainfall) are January, February and September (1.57").
Average rainfall days in January
Cedar Knolls, NJ
- Average rainfall days in January: 8.3 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in January
Cedar Knolls, NJ
- Average snowfall in January: 1.77"
The month with the highest snowfall is March (3.7").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in January
Cedar Knolls, NJ
- Average snowfall days in January: 6.6 days
The month with the highest number of snowfall days is February (6.8 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
Cedar Knolls, 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: 4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in January
Cedar Knolls, NJ
- Average sunshine days in January: 18.3 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is July (10.9 days).
Average UV index in January
Cedar Knolls, 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
Cedar Knolls, NJ
- Average cloud cover in January: 46
The months with the most cloud cover are February, March and December (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility in January
Cedar Knolls, NJ
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, July, August, October, November and December (6mi).
The months with the lowest visibility are May, June and September (5mi).
Cedar Knolls, New Jersey, USA
Weather forecast for your location
2. Allow the app to use your location
