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 a wintry 42.4°F (5.8°C) in November to a freezing cold 31.5°F (-0.3°C). Night temperatures during December in Westernville stabilize at an average of 22.6°F (-5.2°C), closely mirroring the daytime temperatures.Humidity
In Westernville, the average relative humidity in December is 87%.Rainfall
In Westernville, in December, during 12.2 rainfall days, 2.4" (61mm) of precipitation is typically accumulated. In Westernville, during the entire year, the rain falls for 176.6 days and collects up to 29.06" (738mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Westernville, New York, during December, snow falls for 17.5 days and regularly aggregates up to 7.44" (189mm) of snow. Throughout the year, there are 88.9 snowfall days, and 32.6" (828mm) of snow is accumulated.Daylight
With an average of 9h and 0min of daylight, December has the shortest days of the year in Westernville.On the first day of December, sunrise is at 7:14 am and sunset at 4:26 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 4:35 pm EST.
Sunshine
In December, the average sunshine in Westernville is 2.7h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In December, an average UV index of 1 transforms into the following instructions:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Frequently asked questions
How cold is December in Westernville?
What is the average humidity in December in Westernville?
How much does it rain in Westernville in December?
How many days does it snow in December in Westernville?
What is the month with the shortest days in Westernville?
What is the average length of the day in December in Westernville?
When are sunrise and sunset in December in Westernville?
How many hours of sunshine does Westernville have in December?
What are the months with the lowest UV index in Westernville?
What is the UV index intensity in December in Westernville?
Average temperature in December
Westernville, NY
- Average high temperature in December: 31.5°F
The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is January (25.5°F).
- Average low temperature in December: 22.6°F
The month with the highest average low temperature is July (57.6°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in December
Westernville, 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
Westernville, NY
- Average wind speed in December: 9.2mph
The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in December
Westernville, NY
- Average humidity in December: 87%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is May (78%).
Average rainfall in December
Westernville, NY
- Average rainfall in December: 2.4"
The wettest month (with the highest rainfall) is May (2.95").
The driest months (with the least rainfall) are March and September (1.93").
Average rainfall days in December
Westernville, NY
- Average rainfall days in December: 12.2 days
The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is February (7.9 days).
Average snowfall in December
Westernville, NY
- Average snowfall in December: 7.44"
The month with the highest snowfall is January (8.74").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Westernville, NY
- Average snowfall days in December: 17.5 days
The month with the highest number of snowfall days is January (21.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Westernville, NY
- Average daylight in December: 9h and 0min
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 0min).
- Average sunshine in December: 2h and 4min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 2h and 18min).
Average sunshine days in December
Westernville, NY
- Average sunshine days in December: 5.8 days
The month with the most sunshine days is September (13.5 days).
The month with the least sunshine days is February (4.6 days).
Average UV index in December
Westernville, 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, November and December (UV index 1).
Average cloud cover in December
Westernville, NY
- Average cloud cover in December: 72
The months with the most cloud cover are January and February (Cloud cover 76).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility in December
Westernville, 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).
Westernville, New York, USA
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