January weather forecastHaddonfield, NJ
January
Weather in January
January, the same as December, is another cold winter month in Haddonfield, New Jersey, with an average temperature fluctuating between 25.5°F (-3.6°C) and 37.8°F (3.2°C).Temperature
Haddonfield records the coldest temperatures in January, averaging a high of 37.8°F (3.2°C) and a low of 25.5°F (-3.6°C).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
January through May, November and December are months with snowfall in Haddonfield. In January, it is snowing for 3.6 days. Throughout January, 0.55" (14mm) of snow is accumulated. In Haddonfield, during the entire year, snow falls for 10.3 days and aggregates up to 2.36" (60mm) of snow.Daylight
In January, the average length of the day in Haddonfield is 9h and 43min.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
The average sunshine in January 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 of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the average person.Note: The UV index of 2 in January translates into these instructions:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Haddonfield, 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
Haddonfield, 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
Haddonfield, 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
Haddonfield, 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
Haddonfield, 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
Haddonfield, 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
Haddonfield, 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
Haddonfield, 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
Haddonfield, NJ
- Average daylight in January: 9h and 42min
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
Haddonfield, 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
Haddonfield, 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
Haddonfield, 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
Haddonfield, 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).
