Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
In Haddon Heights, the average high-temperature in December decreases from a fresh 53.2°F (11.8°C) in November to a frosty 44.2°F (6.8°C). In the month of December, Haddon Heights's average low-temperature falls to a cold 32.9°F (0.5°C).Humidity
In Haddon Heights, the average relative humidity in December is 76%.Rainfall
In Haddon Heights, during December, the rain falls for 7.4 days and regularly aggregates up to 1.1" (28mm) of precipitation. Throughout the year, in Haddon Heights, New Jersey, there are 121.5 rainfall days, and 12.44" (316mm) of precipitation is accumulated.Snowfall
Months with snowfall in Haddon Heights are January through May, November and December. In Haddon Heights, during December, snow falls for 1.5 days and regularly aggregates up to 0.16" (4mm) of snow. In Haddon Heights, during the entire year, snow falls for 10.3 days and aggregates up to 2.36" (60mm) of snow.Daylight
The month with the shortest days in Haddon Heights is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:03 am and sunset at 4:35 pm. On the last day of December, sunrise is at 7:21 am and sunset at 4:45 pm EST.
Sunshine
In Haddon Heights, the average sunshine in December is 5h.UV index
The months with the lowest UV index in Haddon Heights are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: In December, a daily UV index of 2 turns into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Frequently asked questions
How cold does it get in Haddon Heights in December?
What is the average humidity in December in Haddon Heights?
How many days does it rain in December in Haddon Heights?
How much does it snow in Haddon Heights in December?
What is the month with the shortest days in Haddon Heights?
What is the average length of the day in December in Haddon Heights?
When are sunrise and sunset in December in Haddon Heights?
How long on average sun shines in December in Haddon Heights?
What is the month with the lowest UV index in Haddon Heights?
What is the UV index reading in December in Haddon Heights?
Average temperature in December
Haddon Heights, NJ
- Average high temperature in December: 44.2°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 December: 32.9°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 (25.5°F).
Average pressure in December
Haddon Heights, NJ
- Average pressure in December: 30.09"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 December
Haddon Heights, NJ
- Average wind speed in December: 7.6mph
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 December
Haddon Heights, NJ
- Average humidity in December: 76%
The month with the highest relative humidity is October (77%).
The month with the lowest relative humidity is April (70%).
Average rainfall in December
Haddon Heights, NJ
- Average rainfall in December: 1.1"
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 December
Haddon Heights, NJ
- Average rainfall days in December: 7.4 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 December
Haddon Heights, NJ
- Average snowfall in December: 0.16"
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 December
Haddon Heights, NJ
- Average snowfall days in December: 1.5 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 December /
Average sunshine in December
Haddon Heights, NJ
- Average daylight in December: 9h and 2min
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 December: 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 December
Haddon Heights, NJ
- Average sunshine days in December: 21.5 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 December
Haddon Heights, NJ
- Average UV index in December: 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 December
Haddon Heights, NJ
- Average cloud cover in December: 47
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 December
Haddon Heights, NJ
- Average visibility in December: 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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