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 37.9°F (3.3°C) and a low of 27.3°F (-2.6°C).Humidity
January, March, April and November, with an average relative humidity of 74%, are the least humid months in Jerseyville.Rainfall
The month with the least rainfall in Jerseyville is January, when the rain falls for 9.5 days and typically collects 1.93" (49mm) of precipitation.Snowfall
January through April, October through December are months with snowfall in Jerseyville, New Jersey. In Jerseyville, New Jersey, during January, snow falls for 5.3 days and regularly aggregates up to 1.3" (33mm) of snow. Throughout the year, there are 17 snowfall days, and 5.55" (141mm) of snow is accumulated.Daylight
In Jerseyville, the average length of the day in January is 9h and 41min.On the first day of the month, sunrise is at 7:19 am and sunset at 4:41 pm. On the last day of January, in Jerseyville, sunrise is at 7:06 am and sunset at 5:13 pm EST.
Sunshine
In January, the average sunshine in Jerseyville, New Jersey, is 5.2h.UV index
The months with the lowest UV index in Jerseyville are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 2 during January translates into the following directions:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Frequently asked questions
What month is the coldest in Jerseyville?
How cold is January in Jerseyville?
What are the least humid months in Jerseyville?
What is the average humidity in January in Jerseyville?
What is the driest month in Jerseyville?
How much does it rain in Jerseyville in January?
How many days does it snow in January in Jerseyville?
What is the average length of the day in January in Jerseyville?
When are sunrise and sunset in January in Jerseyville?
How many hours of sunshine does Jerseyville have in January?
What are the months with the lowest UV index in Jerseyville?
What is the UV index intensity in January in Jerseyville?
Average temperature in January
Jerseyville, NJ
- Average high temperature in January: 37.9°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in January: 27.3°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).
Average pressure in January
Jerseyville, 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
Jerseyville, NJ
- Average wind speed in January: 11.1mph
The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in January
Jerseyville, NJ
- Average humidity in January: 74%
The months with the highest relative humidity are May and June (79%).
The months with the lowest relative humidity are January, March, April and November (74%).
Average rainfall in January
Jerseyville, NJ
- Average rainfall in January: 1.93"
The wettest month (with the highest rainfall) is July (3.58").
The driest month (with the least rainfall) is January (1.93").
Average rainfall days in January
Jerseyville, NJ
- Average rainfall days in January: 9.5 days
The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is November (9.2 days).
Average snowfall in January
Jerseyville, NJ
- Average snowfall in January: 1.3"
The month with the highest snowfall is March (1.46").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Jerseyville, NJ
- Average snowfall days in January: 5.3 days
The month with the highest number of snowfall days is January (5.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Jerseyville, 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 24min).
- Average sunshine in January: 5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in January
Jerseyville, NJ
- Average sunshine days in January: 18 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in January
Jerseyville, 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
Jerseyville, NJ
- Average cloud cover in January: 43
The months with the most cloud cover are February, March and December (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in January
Jerseyville, 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).
Jerseyville, New Jersey, USA
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