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 December's onset, the weather shows a temperature decrease, transitioning from 42.6°F (5.9°C) in November to a still cold 32.7°F (0.4°C). Westdale observes a minimal variance in temperature, with a consistent average low of 23.9°F (-4.5°C) during the nights of December.Humidity
In Westdale, the average relative humidity in December is 86%.Rainfall
In Westdale, in December, it is raining for 12 days, with typically 3.43" (87mm) of accumulated precipitation. Throughout the year, there are 176.3 rainfall days, and 37.09" (942mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Westdale, New York, in December, during 17.4 snowfall days, 10.55" (268mm) of snow is typically accumulated. Throughout the year, there are 88.5 snowfall days, and 46.89" (1191mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 0min of daylight.On the first day of the month, sunrise is at 7:16 am and sunset at 4:28 pm. On the last day of December, sunrise is at 7:35 am and sunset at 4:37 pm EST.
Sunshine
In Westdale, the average sunshine in December is 2.8h.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 threat to health from unsafe exposure to UV radiation for the average person.Note: The daily maximum UV index of 1 in December interprets into the following advice:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Westdale, NY
- Average high temperature in December: 32.7°F
The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is January (26.2°F).
- Average low temperature in December: 23.9°F
The month with the highest average low temperature is July (58.5°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).
Average pressure in December
Westdale, 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
Westdale, NY
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity in December
Westdale, 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 (79%).
Average rainfall in December
Westdale, NY
- Average rainfall in December: 3.43"
The wettest months (with the highest rainfall) are May and October (3.66").
The driest month (with the least rainfall) is September (2.13").
Average rainfall days in December
Westdale, NY
- Average rainfall days in December: 12 days
The month with the highest number of rainy days is October (18.5 days).
The month with the least rainy days is February (8.5 days).
Average snowfall in December
Westdale, NY
- Average snowfall in December: 10.55"
The month with the highest snowfall is January (11.54").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Westdale, NY
- Average snowfall days in December: 17.4 days
The month with the highest number of snowfall days is January (21.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Westdale, NY
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 2h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The months with the least sunshine are January and February (Average sunshine: 2h and 30min).
Average sunshine days in December
Westdale, NY
- Average sunshine days in December: 6.3 days
The month with the most sunshine days is September (14.4 days).
The month with the least sunshine days is February (4.6 days).
Average UV index in December
Westdale, NY
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in December
Westdale, NY
- Average cloud cover in December: 72
The months with the most cloud cover are January and February (Cloud cover 75).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Westdale, NY
- Average visibility in December: 5mi
The months with the highest visibility are April and October (6mi).
The months with the lowest visibility are January and February (4mi).
Westdale, New York, USA
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