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
Morristown, New Jersey, notes the coldest temperatures in January, with a high average of 35.1°F (1.7°C) and a low of 22.5°F (-5.3°C).Humidity
The average relative humidity in January in Morristown, New Jersey, is 77%.Rainfall
In Morristown, during January, the rain falls for 8.8 days and regularly aggregates up to 1.93" (49mm) of precipitation. Throughout the year, there are 164.2 rainfall days, and 30.67" (779mm) of precipitation is accumulated.Snowfall
Months with snowfall in Morristown are January through May, October through December. In Morristown, in January, during 7.6 snowfall days, 2.17" (55mm) of snow is typically accumulated. In Morristown, during the entire year, snow falls for 26 days and aggregates up to 11.61" (295mm) of snow.Daylight
In Morristown, the average length of the day in January is 9h and 38min.On the first day of January in Morristown, sunrise is at 7:22 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 5:13 pm EST.
Sunshine
In Morristown, New Jersey, the average sunshine in January is 4.9h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily high UV index of 2 during January translates into the following recommendations:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Frequently asked questions
What time of the year is the coldest in Morristown?
How cold is it in Morristown in January?
What is the average humidity in January in Morristown?
How much does it rain in Morristown in January?
How many days does it snow in January in Morristown?
What is the average length of the day in January in Morristown?
When are sunrise and sunset in January in Morristown?
How long on average sun shines in January in Morristown?
What are the months with the lowest UV index in Morristown?
What is the UV index reading in January in Morristown?
Average temperature in January
Morristown, NJ
- Average high temperature in January: 35.1°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (35.1°F).
- Average low temperature in January: 22.5°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in January
Morristown, 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
Morristown, NJ
- Average wind speed in January: 8.3mph
The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in January
Morristown, NJ
- Average humidity in January: 77%
The months with the highest relative humidity are February and December (80%).
The months with the lowest relative humidity are April and August (74%).
Average rainfall in January
Morristown, NJ
- Average rainfall in January: 1.93"
The wettest month (with the highest rainfall) is July (3.27").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in January
Morristown, NJ
- Average rainfall days in January: 8.8 days
The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in January
Morristown, NJ
- Average snowfall in January: 2.17"
The month with the highest snowfall is March (3.5").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Morristown, NJ
- Average snowfall days in January: 7.6 days
The month with the highest number of snowfall days is January (7.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Morristown, 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 5min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in January
Morristown, NJ
- Average sunshine days in January: 16.9 days
The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is June (10.5 days).
Average UV index in January
Morristown, 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
Morristown, NJ
- Average cloud cover in January: 46
The months with the most cloud cover are February and March (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility in January
Morristown, NJ
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Morristown, New Jersey, USA
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