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 December, the average high-temperature drops from a wintry 41.5°F (5.3°C) in November to a freezing cold 30.6°F (-0.8°C). In December, in Westport, the average low-temperature is 19.9°F (-6.7°C).Humidity
In December, the average relative humidity in Westport is 83%.Rainfall
In Westport, New York, during December, the rain falls for 13.1 days and regularly aggregates up to 2.24" (57mm) of precipitation. Throughout the year, there are 176.9 rainfall days, and 28.27" (718mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Westport, New York, in December, snow falls for 16 days, with typically accumulated 6.57" (167mm) of snow. In Westport, during the entire year, snow falls for 85.1 days and aggregates up to 43.03" (1093mm) of snow.Daylight
December has the shortest days of the year, with an average of 8h and 56min of daylight.On the first day of December in Westport, sunrise is at 7:08 am and sunset at 4:16 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 4:24 pm EST.
Sunshine
In December, the average sunshine is 4.1h.UV index
The months with the lowest UV index in Westport are January and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: The daily maximum UV index of 1 in December interpret into the following advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
FAQ
What is the temperature in December in Westport?
What is the average humidity in December in Westport?
How many days does it rain in December in Westport?
How much does it snow in Westport in December?
What is the month with the shortest days in Westport?
What is the average length of the day in December in Westport?
What time are sunrise and sunset in December in Westport?
How long on average sun shines in December in Westport?
When is the lowest UV index in Westport?
How high is the UV index in December in Westport?
Average temperature in December
Westport, NY
- Average high temperature in December: 30.6°F
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (24.8°F).
- Average low temperature in December: 19.9°F
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (12.4°F).
Average pressure in December
Westport, NY
- Average pressure in December: 30.05"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Westport, NY
- Average wind speed in December: 5.8mph
The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in December
Westport, NY
- Average humidity in December: 83%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is May (75%).
Average rainfall in December
Westport, NY
- Average rainfall in December: 2.24"
The wettest month (with the highest rainfall) is June (3.19").
The driest month (with the least rainfall) is September (1.65").
Average rainfall days in December
Westport, NY
- Average rainfall days in December: 13.1 days
The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is February (10.4 days).
Average snowfall in December
Westport, NY
- Average snowfall in December: 6.57"
The month with the highest snowfall is February (12.05").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Westport, NY
- Average snowfall days in December: 16 days
The month with the highest number of snowfall days is January (19.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Westport, NY
- Average daylight in December: 8h and 56min
The month with the longest days is June (Average daylight: 15h and 27min).
The month with the shortest days is December (Average daylight: 8h and 56min).
- Average sunshine in December: 4h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in December
Westport, NY
- Average sunshine days in December: 10 days
The month with the most sunshine days is September (16.7 days).
The month with the least sunshine days is February (7.6 days).
Average UV index in December
Westport, NY
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Westport, NY
- Average cloud cover in December: 59
The month with the most cloud cover is February (Cloud cover 62).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in December
Westport, NY
- Average visibility in December: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).
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