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 of the year, registering average temperatures as high as 37°F (2.8°C) and as low as 26.4°F (-3.1°C).Humidity
The months with the lowest humidity in Robertsville are January, March, April, August and November, with an average relative humidity of 74%.Rainfall
In Robertsville, in January, during 9.8 rainfall days, 2.01" (51mm) of precipitation is typically accumulated. In Robertsville, during the entire year, the rain falls for 159.5 days and collects up to 31.22" (793mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In January, in Robertsville, it is snowing for 5.3 days. Throughout January, 1.61" (41mm) of snow is accumulated. In Robertsville, New Jersey, during the entire year, snow falls for 19.1 days and aggregates up to 7.64" (194mm) of snow.Daylight
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 Robertsville, sunrise is at 7:07 am and sunset at 5:13 pm EST.
Sunshine
In January, the average sunshine in Robertsville is 5.2h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: The average daily UV index of 2 in January transforms into the following instructions:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month in Robertsville?
How cold is January in Robertsville?
What is the least humid month in Robertsville?
What is the average humidity in January in Robertsville?
How much does it rain in Robertsville in January?
How many days does it snow in January in Robertsville?
What is the average length of the day in January in Robertsville?
When is the sunrise / sunset in January in Robertsville?
How many hours of sunshine does Robertsville have in January?
What is the month with the lowest UV index in Robertsville?
What is the UV index intensity in January in Robertsville?
Average temperature in January
Robertsville, NJ
- Average high temperature in January: 37°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 (37°F).
- Average low temperature in January: 26.4°F
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).
Average pressure in January
Robertsville, 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
Robertsville, NJ
- Average wind speed in January: 10.1mph
The windiest months (with the highest average wind speed) are January and March (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).
Average humidity in January
Robertsville, NJ
- Average humidity in January: 74%
The months with the highest relative humidity are May and June (78%).
The months with the lowest relative humidity are January, March, April, August and November (74%).
Average rainfall in January
Robertsville, NJ
- Average rainfall in January: 2.01"
The wettest month (with the highest rainfall) is December (3.35").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in January
Robertsville, NJ
- Average rainfall days in January: 9.8 days
The month with the highest number of rainy days is July (16.4 days).
The months with the least rainy days are January and November (9.8 days).
Average snowfall in January
Robertsville, NJ
- Average snowfall in January: 1.61"
The month with the highest snowfall is March (2.4").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Robertsville, 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
Robertsville, 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 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in January
Robertsville, NJ
- Average sunshine days in January: 17.4 days
The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in January
Robertsville, 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
Robertsville, NJ
- Average cloud cover in January: 43
The months with the most cloud cover are February and March (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 29).
Average visibility in January
Robertsville, 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).
Robertsville, New Jersey, USA
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