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 Montgomery, entering December brings a temperature decrement, reducing from November's fresh 50.9°F (10.5°C) to an icy 41.9°F (5.5°C). Nighttime temperature lowers to an average of 30.6°F (-0.8°C) in December.Humidity
In Montgomery, the average relative humidity in December is 79%.Rainfall
In December, in Montgomery, the rain falls for 7.7 days. Throughout December, 1.14" (29mm) of precipitation is accumulated. Throughout the year, in Montgomery, there are 112.6 rainfall days, and 11.77" (299mm) of precipitation is accumulated.Snowfall
January through May, November and December are months with snowfall in Montgomery. In Montgomery, in December, during 2.6 snowfall days, 0.79" (20mm) of snow is typically accumulated. Throughout the year, in Montgomery, there are 16.7 snowfall days, and 3.98" (101mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:03 am and sunset at 4:32 pm. On the last day of December, sunrise is at 7:21 am and sunset at 4:42 pm EST.
Sunshine
In December, the average sunshine is 4.8h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Montgomery, New Jersey. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the average person.Note: A maximum UV index of 2 in December translates into the following recommendations:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Frequently asked questions
How cold is December in Montgomery?
What is the average humidity in December in Montgomery?
How many days does it rain in December in Montgomery?
How many days does it snow in December in Montgomery?
What is the month with the shortest days in Montgomery?
What is the average length of the day in December in Montgomery?
When are sunrise and sunset in December in Montgomery?
How long on average sun shines in December in Montgomery?
What are the months with the lowest UV index in Montgomery?
How high is the UV index in December in Montgomery?
Average temperature in December
Montgomery, NJ
- Average high temperature in December: 41.9°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in December: 30.6°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (23°F).
Average pressure in December
Montgomery, NJ
- Average pressure in December: 30.09"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 December
Montgomery, NJ
- Average wind speed in December: 7.8mph
The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in December
Montgomery, NJ
- Average humidity in December: 79%
The months with the highest relative humidity are February and October (80%).
The month with the lowest relative humidity is April (75%).
Average rainfall in December
Montgomery, NJ
- Average rainfall in December: 1.14"
The wettest month (with the highest rainfall) is July (1.46").
The driest month (with the least rainfall) is September (0.63").
Average rainfall days in December
Montgomery, NJ
- Average rainfall days in December: 7.7 days
The month with the highest number of rainy days is May (13.1 days).
The month with the least rainy days is January (5.5 days).
Average snowfall in December
Montgomery, NJ
- Average snowfall in December: 0.79"
The month with the highest snowfall is March (1.1").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Montgomery, NJ
- Average snowfall days in December: 2.6 days
The month with the highest number of snowfall days is February (5.2 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
Montgomery, 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 18min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in December
Montgomery, NJ
- Average sunshine days in December: 21.5 days
The month with the most sunshine days is November (22.2 days).
The month with the least sunshine days is June (15.6 days).
Average UV index in December
Montgomery, 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, March, November and December (UV index 2).
Average cloud cover in December
Montgomery, NJ
- Average cloud cover in December: 50
The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in December
Montgomery, NJ
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, November and December (6mi).
The months with the lowest visibility are May, September and October (5mi).
Montgomery, New Jersey, USA
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