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
Swartswood, New Jersey, notes the coldest temperatures in January, with a high average of 33.3°F (0.7°C) and a low of 20.3°F (-6.5°C).Humidity
In Swartswood, the average relative humidity in January is 79%.Rainfall
In Swartswood, New Jersey, in January, during 7.5 rainfall days, 1.89" (48mm) of precipitation is typically accumulated. In Swartswood, during the entire year, the rain falls for 161.1 days and collects up to 28.98" (736mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. The months with the most snowfall are January and February, with an average 4.29" (109mm) of accumulated snow.Daylight
The average length of the day in January is 9h and 37min.On the first day of January, sunrise is at 7:24 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 5:14 pm EST.
Sunshine
The average sunshine in January is 4.7h.UV index
The average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: A daily high UV index of 2 in January leads to these guidelines:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
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 it in January?
What is the average humidity in January?
How much does it rain in January?
What is the snowiest month?
How many days does it snow in January in Swartswood?
What is the average length of the day in January in Swartswood?
When is the sunrise / sunset in January?
How many hours of sunshine does Swartswood have in January?
How high is the UV index in January?
Average temperature in January
Swartswood, 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
Swartswood, 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
Swartswood, 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
Swartswood, 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
Swartswood, 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
Swartswood, 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
Swartswood, 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
Swartswood, 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
Swartswood, 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 4min
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
Swartswood, 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
Swartswood, 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
Swartswood, 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
Swartswood, 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).
Swartswood, New Jersey, USA
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