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, characterized by an average high temperature of 38.7°F (3.7°C) and a low temperature of 28.8°F (-1.8°C), is generally the coldest month.Humidity
The months with the lowest humidity are January, March and November, with an average relative humidity of 74%.Rainfall
The month with the least rainfall is January, when the rain falls for 6.9 days and typically collects 0.79" (20mm) of precipitation.Snowfall
January through March, November and December are months with snowfall in Holiday Heights. In Holiday Heights, in January, snow falls for 4.3 days, with typically accumulated 0.71" (18mm) of snow. Throughout the year, there are 13.6 snowfall days, and 2.56" (65mm) of snow is accumulated.Daylight
In Holiday Heights, the average length of the day in January is 9h and 43min.On the first day of January, sunrise is at 7:18 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 5:14 pm EST.
Sunshine
In Holiday Heights, the average sunshine in January is 5.2h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the average person.Note: In January, a daily maximum UV index of 2 leads to the following instructions:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month?
How cold is January?
What are the least humid months?
What is the average humidity in January?
What is the driest month?
How many days does it rain in January?
How many days does it snow in January?
What is the average length of the day in January?
When is the sunrise / sunset in January in Holiday Heights?
How many hours of sunshine does Holiday Heights have in January?
What is the month with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Holiday Heights, NJ
- Average high temperature in January: 38.7°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (38.7°F).
- Average low temperature in January: 28.8°F
The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).
Average pressure in January
Holiday Heights, 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
Holiday Heights, NJ
- Average wind speed in January: 11.9mph
The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.8mph).
Average humidity in January
Holiday Heights, NJ
- Average humidity in January: 74%
The months with the highest relative humidity are May and June (80%).
The months with the lowest relative humidity are January, March and November (74%).
Average rainfall in January
Holiday Heights, NJ
- Average rainfall in January: 0.79"
The wettest month (with the highest rainfall) is July (1.97").
The driest month (with the least rainfall) is January (0.79").
Average rainfall days in January
Holiday Heights, NJ
- Average rainfall days in January: 6.9 days
The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is January (6.9 days).
Average snowfall in January
Holiday Heights, NJ
- Average snowfall in January: 0.71"
The month with the highest snowfall is December (0.75").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Holiday Heights, NJ
- Average snowfall days in January: 4.3 days
The month with the highest number of snowfall days is January (4.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Holiday Heights, 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
Holiday Heights, NJ
- Average sunshine days in January: 20.5 days
The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is July (13.9 days).
Average UV index in January
Holiday Heights, 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, November and December (UV index 2).
Average cloud cover in January
Holiday Heights, NJ
- Average cloud cover in January: 43
The month with the most cloud cover is February (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in January
Holiday Heights, 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).
Holiday Heights, New Jersey, USA
Weather forecast for your location
2. Allow the app to use your location