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
December's onset brings a slight change in high-temperatures, falling from a frosty 42.8°F (6°C) in November to a wintry 32.4°F (0.2°C). In Westmoreland, the nightly December temperatures experience a slight descent from daily highs to an average low of 23.4°F (-4.8°C).Humidity
In Westmoreland, the average relative humidity in December is 86%.Rainfall
In December, the rain falls for 12.3 days. Throughout December, 3.46" (88mm) of precipitation is accumulated. In Westmoreland, during the entire year, the rain falls for 175.3 days and collects up to 38.9" (988mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Westmoreland, in December, during 16.8 snowfall days, 10.16" (258mm) of snow is typically accumulated. In Westmoreland, during the entire year, snow falls for 90 days and aggregates up to 47.6" (1209mm) of snow.Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:14 am and sunset at 4:27 pm. On the last day of December, sunrise is at 7:33 am and sunset at 4:36 pm EST.
Sunshine
In Westmoreland, the average sunshine in December is 2.9h.UV index
January, February and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the average person.Note: During December, 1 as the daily maximum UV index converts into the following advice:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Westmoreland?
What is the average humidity in December in Westmoreland?
How much does it rain in Westmoreland in December?
How many days does it snow in December in Westmoreland?
What is the month with the shortest days in Westmoreland?
How many hours of daylight does Westmoreland have in December?
What time are sunrise and sunset in December in Westmoreland?
How many hours of sunshine does Westmoreland have in December?
What is the month with the lowest UV index in Westmoreland?
What is the UV index reading in December in Westmoreland?
Average temperature in December
Westmoreland, NY
- Average high temperature in December: 32.4°F
The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is January (26.4°F).
- Average low temperature in December: 23.4°F
The month with the highest average low temperature is July (57.9°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).
Average pressure in December
Westmoreland, NY
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Westmoreland, NY
- Average wind speed in December: 9.3mph
The windiest month (with the highest average wind speed) is January (9.7mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity in December
Westmoreland, NY
- Average humidity in December: 86%
The months with the highest relative humidity are January and February (88%).
The months with the lowest relative humidity are April and May (78%).
Average rainfall in December
Westmoreland, NY
- Average rainfall in December: 3.46"
The wettest month (with the highest rainfall) is April (3.82").
The driest month (with the least rainfall) is September (2.6").
Average rainfall days in December
Westmoreland, NY
- Average rainfall days in December: 12.3 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is February (8.2 days).
Average snowfall in December
Westmoreland, NY
- Average snowfall in December: 10.16"
The month with the highest snowfall is January (11.22").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Westmoreland, NY
- Average snowfall days in December: 16.8 days
The month with the highest number of snowfall days is January (20.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Westmoreland, NY
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 2h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 2h and 24min).
Average sunshine days in December
Westmoreland, NY
- Average sunshine days in December: 7.3 days
The month with the most sunshine days is September (13.4 days).
The month with the least sunshine days is February (4.4 days).
Average UV index in December
Westmoreland, NY
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in December
Westmoreland, NY
- Average cloud cover in December: 70
The month with the most cloud cover is February (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 36).
Average visibility in December
Westmoreland, NY
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).
Westmoreland, New York, USA
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