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
The coldest period tends to be January, when average temperatures fluctuate between a high of 36°F (2.2°C) and a low of 24.6°F (-4.1°C).Humidity
The average relative humidity in January is 75%.Rainfall
In Roselle Park, during January, the rain falls for 5.9 days and regularly aggregates up to 0.51" (13mm) of precipitation. Throughout the year, there are 117.5 rainfall days, and 9.17" (233mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall in Roselle Park. In Roselle Park, in January, during 4.6 snowfall days, 0.35" (9mm) of snow is typically accumulated. In Roselle Park, during the entire year, snow falls for 16.7 days and aggregates up to 1.97" (50mm) of snow.Daylight
The average length of the day in January is 9h and 40min.On the first day of January, sunrise is at 7:20 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 5:12 pm EST.
Sunshine
In Roselle Park, the average sunshine in January is 5.2h.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 of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum high daily UV index of 2 during January translates into the following directions:
People with sensitive skin, children, and babies should always be protected from prolonged 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. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
How cold is January?
What is the average humidity in January?
How many days does it rain in January?
How much does it snow in January?
How many hours of daylight does Roselle Park have in January?
When are sunrise and sunset in January?
How long on average sun shines in January?
What are the months with the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Roselle Park, NJ
- Average high temperature in January: 36°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (36°F).
- Average low temperature in January: 24.6°F
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (24.6°F).
Average pressure in January
Roselle Park, 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
Roselle Park, NJ
- Average wind speed in January: 9.3mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is July (6mph).
Average humidity in January
Roselle Park, NJ
- Average humidity in January: 75%
The months with the highest relative humidity are February and December (77%).
The months with the lowest relative humidity are April and August (72%).
Average rainfall in January
Roselle Park, NJ
- Average rainfall in January: 0.51"
The wettest month (with the highest rainfall) is July (1.22").
The driest month (with the least rainfall) is September (0.43").
Average rainfall days in January
Roselle Park, NJ
- Average rainfall days in January: 5.9 days
The month with the highest number of rainy days is July (13.9 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in January
Roselle Park, NJ
- Average snowfall in January: 0.35"
The month with the highest snowfall is March (0.75").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Roselle Park, NJ
- Average snowfall days in January: 4.6 days
The month with the highest number of snowfall days is February (5.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Roselle Park, 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 18min).
- 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 42min).
Average sunshine days in January
Roselle Park, NJ
- Average sunshine days in January: 22.1 days
The month with the most sunshine days is January (22.1 days).
The month with the least sunshine days is June (13.5 days).
Average UV index in January
Roselle Park, 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
Roselle Park, NJ
- Average cloud cover in January: 44
The months with the most cloud cover are February, March and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in January
Roselle Park, NJ
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Roselle Park, New Jersey, USA
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