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
Harrison reaches its lowest average temperatures in January, measuring 36.3°F (2.4°C) at the peak and 25.9°F (-3.4°C) at the lowest.Humidity
In Harrison, the average relative humidity in January is 73%.Rainfall
January and February are months with the least rain in Harrison, New Jersey, when the rain falls for 7.3 days and typically aggregates up to 1.69" (43mm) of rain.Snowfall
January through April, November and December are months with snowfall in Harrison. In January, it is snowing for 5.3 days. Throughout January, 1.81" (46mm) of snow is accumulated. In Harrison, during the entire year, snow falls for 18.1 days and aggregates up to 8.46" (215mm) of snow.Daylight
The average length of the day in January in Harrison is 9h and 39min.On the first day of January in Harrison, sunrise is at 7:20 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 5:12 pm EST.
Sunshine
In Harrison, the average sunshine in January is 5.1h.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 value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The daily maximum UV index of 2 in January interprets into the following advice:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Frequently asked questions
What is the coldest time of year in Harrison?
How cold is it in Harrison in January?
What is the average humidity in January in Harrison?
What is the driest month in Harrison?
How much does it rain in Harrison in January?
How many days does it snow in January in Harrison?
How many hours of daylight does Harrison have in January?
What time are sunrise and sunset in January in Harrison?
How many hours of sunshine does Harrison have in January?
When is the lowest UV index in Harrison?
What is the UV index intensity in January in Harrison?
Average temperature in January
Harrison, NJ
- Average high temperature in January: 36.3°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (36.3°F).
- Average low temperature in January: 25.9°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 (25.9°F).
Average pressure in January
Harrison, NJ
- Average pressure in January: 30.06"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Harrison, NJ
- Average wind speed in January: 9.9mph
The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).
Average humidity in January
Harrison, NJ
- Average humidity in January: 73%
The months with the highest relative humidity are February and December (75%).
The month with the lowest relative humidity is August (70%).
Average rainfall in January
Harrison, NJ
- Average rainfall in January: 1.69"
The wettest month (with the highest rainfall) is July (3.23").
The driest months (with the least rainfall) are January and February (1.69").
Average rainfall days in January
Harrison, NJ
- Average rainfall days in January: 7.3 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in January
Harrison, NJ
- Average snowfall in January: 1.81"
The month with the highest snowfall is March (2.8").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Harrison, NJ
- Average snowfall days in January: 5.3 days
The months with the highest number of snowfall days are January and February (5.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Harrison, 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: 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 48min).
Average sunshine days in January
Harrison, NJ
- Average sunshine days in January: 19.6 days
The month with the most sunshine days is January (19.6 days).
The month with the least sunshine days is July (12 days).
Average UV index in January
Harrison, 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
Harrison, NJ
- Average cloud cover in January: 43
The months with the most cloud cover are February, March and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in January
Harrison, 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).
Harrison, New Jersey, USA
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