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 month that records the lowest temperatures, with averages ranging from a high of 35.1°F (1.7°C) to a low of 22.3°F (-5.4°C).Humidity
In Mountainville, New Jersey, the average relative humidity in January is 77%.Rainfall
In January, in Mountainville, New Jersey, the rain falls for 8.8 days. Throughout January, 2.32" (59mm) of precipitation is accumulated. Throughout the year, there are 162.3 rainfall days, and 32.83" (834mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Mountainville. In Mountainville, during January, snow falls for 8 days and regularly aggregates up to 3.03" (77mm) of snow. In Mountainville, during the entire year, snow falls for 27.8 days and aggregates up to 15.35" (390mm) of snow.Daylight
The average length of the day in January is 9h and 39min.On the first day of January in Mountainville, sunrise is at 7:23 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 5:15 pm EST.
Sunshine
In January, the average sunshine is 4.9h.UV index
The months with the lowest UV index in Mountainville 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 low health risk from exposure to the Sun's UV rays for average individuals.Note: A maximum daily UV index of 2 during January morphs into the following directions:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Frequently asked questions
What month is the coldest in Mountainville?
How cold is it in Mountainville in January?
What is the average humidity in January in Mountainville?
How much does it rain in Mountainville in January?
How much does it snow in Mountainville in January?
How many hours of daylight does Mountainville have in January?
When are sunrise and sunset in January in Mountainville?
How long on average sun shines in January in Mountainville?
When is the lowest UV index in Mountainville?
How high is the UV index in January in Mountainville?
Average temperature in January
Mountainville, NJ
- Average high temperature in January: 35.1°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (35.1°F).
- Average low temperature in January: 22.3°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).
Average pressure in January
Mountainville, 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
Mountainville, NJ
- Average wind speed in January: 8.1mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in January
Mountainville, NJ
- Average humidity in January: 77%
The months with the highest relative humidity are February, October and December (80%).
The month with the lowest relative humidity is April (75%).
Average rainfall in January
Mountainville, NJ
- Average rainfall in January: 2.32"
The wettest month (with the highest rainfall) is December (3.35").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in January
Mountainville, NJ
- Average rainfall days in January: 8.8 days
The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in January
Mountainville, NJ
- Average snowfall in January: 3.03"
The month with the highest snowfall is March (4.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Mountainville, NJ
- Average snowfall days in January: 8 days
The months with the highest number of snowfall days are January and February (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
Mountainville, 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 18min).
- Average sunshine in January: 4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in January
Mountainville, NJ
- Average sunshine days in January: 16.8 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is June (11 days).
Average UV index in January
Mountainville, 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
Mountainville, NJ
- Average cloud cover in January: 46
The months with the most cloud cover are February and December (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility in January
Mountainville, NJ
- Average visibility in January: 6mi
The months with the highest visibility are January, March, April, June, July, November and December (6mi).
The months with the lowest visibility are February, May, August, September and October (5mi).
Mountainville, New Jersey, USA
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