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 is the coldest month, with an average high-temperature of 32.5°F (0.3°C) and an average low-temperature of 19.8°F (-6.8°C).Humidity
In DeKays, the average relative humidity in January is 79%.Rainfall
The month with the least rainfall is January, when the rain falls for 6.3 days and typically collects 1.61" (41mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In DeKays, in January, snow falls for 7.6 days, with typically accumulated 4.45" (113mm) of snow. Throughout the year, there are 30.6 snowfall days, and 19.53" (496mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 37min.On the first day of the month, sunrise is at 7:23 am and sunset at 4:39 pm. On the last day of January, sunrise is at 7:09 am and sunset at 5:12 pm EST.
Sunshine
The average sunshine in January is 4.6h.UV index
In DeKays, the average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: The UV index of 2 during January leads to these advisories:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month?
How cold is January?
What is the average humidity in January?
What is the driest month in DeKays?
How many days does it rain in January?
How much does it snow in January?
How many hours of daylight does DeKays have in January?
What time are sunrise and sunset in January?
How long on average sun shines in January?
What is the UV index intensity in January?
Average temperature in January
DeKays, NJ
- Average high temperature in January: 32.5°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in January: 19.8°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 (19.8°F).
Average pressure in January
DeKays, 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
DeKays, NJ
- Average wind speed in January: 7.6mph
The windiest month (with the highest average wind speed) is March (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in January
DeKays, NJ
- Average humidity in January: 79%
The months with the highest relative humidity are February, October and December (82%).
The month with the lowest relative humidity is April (76%).
Average rainfall in January
DeKays, NJ
- Average rainfall in January: 1.61"
The wettest month (with the highest rainfall) is July (3.31").
The driest month (with the least rainfall) is January (1.61").
Average rainfall days in January
DeKays, NJ
- Average rainfall days in January: 6.3 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in January
DeKays, NJ
- Average snowfall in January: 4.45"
The month with the highest snowfall is February (4.92").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
DeKays, NJ
- Average snowfall days in January: 7.6 days
The month with the highest number of snowfall days is February (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
DeKays, 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 12min).
Average sunshine days in January
DeKays, NJ
- Average sunshine days in January: 18.8 days
The months with the most sunshine days are January and November (18.8 days).
The month with the least sunshine days is July (11.8 days).
Average UV index in January
DeKays, 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
DeKays, NJ
- Average cloud cover in January: 49
The month with the most cloud cover is February (Cloud cover 53).
The months with the least cloud cover are July and August (Cloud cover 37).
Average visibility in January
DeKays, 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).
DeKays, New Jersey, USA
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