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, known for its average high temperature of 33.3°F (0.7°C) and an average low temperature of 20.1°F (-6.6°C), is the coldest month.Humidity
In January, the average relative humidity is 79%.Rainfall
In Blairstown, in January, it is raining for 4.8 days, with typically 0.55" (14mm) of accumulated precipitation. Throughout the year, there are 89.8 rainfall days, and 8.07" (205mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. The months with the most snowfall are January and February, with an average 0.91" (23mm) of accumulated snow.Daylight
In Blairstown, the average length of the day in January is 9h and 38min.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 5:15 pm EST.
Sunshine
In January, the average sunshine is 4.7h.UV index
In Blairstown, New Jersey, 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 rays for ordinary individuals.Note: The daily high UV index of 2 in January translates into this advice:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
How cold is it in January?
What is the average humidity in January?
How many days does it rain in January?
What is the snowiest month?
How much does it snow in January?
What is the average length of the day in January?
When are sunrise and sunset in January in Blairstown?
How long on average sun shines in January?
What is the UV index intensity in January?
Average temperature in January
Blairstown, 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: 20.1°F
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in January
Blairstown, 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
Blairstown, NJ
- Average wind speed in January: 7.7mph
The windiest month (with the highest average wind speed) is March (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in January
Blairstown, 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
Blairstown, NJ
- Average rainfall in January: 0.55"
The wettest month (with the highest rainfall) is July (0.98").
The driest month (with the least rainfall) is September (0.24").
Average rainfall days in January
Blairstown, NJ
- Average rainfall days in January: 4.8 days
The months with the highest number of rainy days are April and May (10.5 days).
The month with the least rainy days is February (4.5 days).
Average snowfall in January
Blairstown, NJ
- Average snowfall in January: 0.91"
The months with the highest snowfall are January and February (0.91").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Blairstown, NJ
- Average snowfall days in January: 6.3 days
The month with the highest number of snowfall days is February (7.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Blairstown, 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 6min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in January
Blairstown, NJ
- Average sunshine days in January: 22.8 days
The month with the most sunshine days is September (23.2 days).
The month with the least sunshine days is April (18 days).
Average UV index in January
Blairstown, 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
Blairstown, NJ
- Average cloud cover in January: 49
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in January
Blairstown, 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).
Blairstown, New Jersey, USA
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