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, with its average high-temperature of 37.8°F (3.2°C) and an average low-temperature of 25.5°F (-3.6°C), holds the record as the coldest month.Humidity
In January, the average relative humidity is 74%.Rainfall
January is the month with the least rainfall. Rain falls for 6.8 days and accumulates 0.67" (17mm) of precipitation.Snowfall
Months with snowfall are January through May, November and December. In Haddon Heights, in January, during 3.6 snowfall days, 0.55" (14mm) of snow is typically accumulated. In Haddon Heights, during the entire year, snow falls for 10.3 days and aggregates up to 2.36" (60mm) of snow.Daylight
In Haddon Heights, the average length of the day in January is 9h and 44min.On the first day of January, sunrise is at 7:21 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 5:17 pm EST.
Sunshine
In January, the average sunshine is 5h.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 estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index, 2 in January, converts into the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. During bright days, sunglasses that offer UVA and UVB defense are recommended. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months in Haddon Heights?
Is it cold during January?
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 in Haddon Heights?
What is the average length of the day in January?
What time are sunrise and sunset in January?
How long on average sun shines in January in Haddon Heights?
What is the month with the lowest UV index?
How high is the UV index in January?
Average temperature in January
Haddon Heights, NJ
- Average high temperature in January: 37.8°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in January: 25.5°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 (25.5°F).
Average pressure in January
Haddon Heights, NJ
- Average pressure in January: 30.08"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in January
Haddon Heights, NJ
- Average wind speed in January: 8.1mph
The windiest months (with the highest average wind speed) are March and April (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in January
Haddon Heights, NJ
- Average humidity in January: 74%
The month with the highest relative humidity is October (77%).
The month with the lowest relative humidity is April (70%).
Average rainfall in January
Haddon Heights, NJ
- Average rainfall in January: 0.67"
The wettest month (with the highest rainfall) is August (1.46").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days in January
Haddon Heights, NJ
- Average rainfall days in January: 6.8 days
The month with the highest number of rainy days is July (14.4 days).
The month with the least rainy days is November (6.6 days).
Average snowfall in January
Haddon Heights, NJ
- Average snowfall in January: 0.55"
The month with the highest snowfall is February (0.79").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in January
Haddon Heights, NJ
- Average snowfall days in January: 3.6 days
The month with the highest number of snowfall days is January (3.6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Haddon 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 0min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in January
Haddon Heights, NJ
- Average sunshine days in January: 21.1 days
The month with the most sunshine days is December (21.5 days).
The month with the least sunshine days is July (14 days).
Average UV index in January
Haddon Heights, NJ
- Average UV index in January: 2
The months with the highest UV index are May, 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
Haddon Heights, NJ
- Average cloud cover in January: 45
The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in January
Haddon 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).
Haddon Heights, New Jersey, USA
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