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
With the onset of December, Westchester experiences a modest temperature adjustment, with the average high-temperature gently receding from a fresh 53.1°F (11.7°C) in November to a chilly 44.1°F (6.7°C). An average low-temperature of 32.9°F (0.5°C) is expected during December.Humidity
The average relative humidity in December in Westchester is 76%.Rainfall
In Westchester, Maryland, during December, the rain falls for 11.8 days and regularly aggregates up to 2.6" (66mm) of precipitation. In Westchester, during the entire year, the rain falls for 165.7 days and collects up to 31.77" (807mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In December, in Westchester, it is snowing for 2.9 days. Throughout December, 1.22" (31mm) of snow is accumulated. In Westchester, during the entire year, snow falls for 16.6 days and aggregates up to 7.8" (198mm) of snow.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:08 am and sunset at 4:44 pm. On the last day of December, in Westchester, sunrise is at 7:26 am and sunset at 4:54 pm EST.
Sunshine
The average sunshine in December in Westchester is 5.1h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Westchester. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 2 during December translates into the following recommendations:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. The solar radiation around mid-day is intense; avoid the Sun and stay safe. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Frequently asked questions
Is December cold in Westchester?
What is the average humidity in December in Westchester?
How much does it rain in Westchester in December?
How many days does it snow in December in Westchester?
What is the month with the shortest days in Westchester?
What is the average length of the day in December in Westchester?
What time are sunrise and sunset in December in Westchester?
How many hours of sunshine does Westchester have in December?
When is the lowest UV index in Westchester?
What is the UV index intensity in December in Westchester?
Average temperature in December
Westchester, MD
- Average high temperature in December: 44.1°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (38.1°F).
- Average low temperature in December: 32.9°F
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).
Average pressure in December
Westchester, MD
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Westchester, MD
- Average wind speed in December: 8mph
The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in December
Westchester, MD
- Average humidity in December: 76%
The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is July (71%).
Average rainfall in December
Westchester, MD
- Average rainfall in December: 2.6"
The wettest month (with the highest rainfall) is August (3.74").
The driest month (with the least rainfall) is January (2.05").
Average rainfall days in December
Westchester, MD
- Average rainfall days in December: 11.8 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (9.7 days).
Average snowfall in December
Westchester, MD
- Average snowfall in December: 1.22"
The month with the highest snowfall is January (2.4").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Westchester, MD
- Average snowfall days in December: 2.9 days
The month with the highest number of snowfall days is January (4.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Westchester, MD
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in December
Westchester, MD
- Average sunshine days in December: 16.2 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.4 days).
Average UV index in December
Westchester, MD
- 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
Westchester, MD
- Average cloud cover in December: 44
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in December
Westchester, MD
- 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).
Westchester, Maryland, USA
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