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
As November transitions to December, the average high-temperature falls from a chilly 48.4°F (9.1°C) to a wintry 38.5°F (3.6°C). The average temperature during December nights is registered at a subzero cold 26.8°F (-2.9°C).Humidity
The months with the highest humidity are February, October and December, with an average relative humidity of 81%.Rainfall
In Washingtonville, New York, during December, the rain falls for 8.7 days and regularly aggregates up to 2.52" (64mm) of precipitation. In Washingtonville, during the entire year, the rain falls for 135.6 days and collects up to 25.39" (645mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Washingtonville, in December, snow falls for 4.8 days, with typically accumulated 3.03" (77mm) of snow. In Washingtonville, during the entire year, snow falls for 27.2 days and aggregates up to 17.2" (437mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 7:04 am and sunset at 4:27 pm. On the last day of December, sunrise is at 7:22 am and sunset at 4:37 pm EST.
Sunshine
In Washingtonville, the average sunshine in December is 4.6h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum high daily UV index of 2 during December translates into the following directions:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold during December?
What is the most humid month?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Washingtonville have in December?
When is the sunrise / sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Washingtonville, NY
- Average high temperature in December: 38.5°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (32.9°F).
- Average low temperature in December: 26.8°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure in December
Washingtonville, NY
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Washingtonville, NY
- Average wind speed in December: 6mph
The windiest months (with the highest average wind speed) are February and March (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in December
Washingtonville, NY
- Average humidity in December: 81%
The months with the highest relative humidity are February, October and December (81%).
The month with the lowest relative humidity is April (74%).
Average rainfall in December
Washingtonville, NY
- Average rainfall in December: 2.52"
The wettest month (with the highest rainfall) is October (2.64").
The driest months (with the least rainfall) are January and September (1.54").
Average rainfall days in December
Washingtonville, NY
- Average rainfall days in December: 8.7 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (5.6 days).
Average snowfall in December
Washingtonville, NY
- Average snowfall in December: 3.03"
The month with the highest snowfall is January (4.37").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Washingtonville, NY
- Average snowfall days in December: 4.8 days
The month with the highest number of snowfall days is February (6.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Washingtonville, NY
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in December
Washingtonville, NY
- Average sunshine days in December: 18.7 days
The month with the most sunshine days is January (20.6 days).
The months with the least sunshine days are May and June (13.5 days).
Average UV index in December
Washingtonville, NY
- Average UV index in December: 2
The months with the highest UV index are June and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Washingtonville, NY
- Average cloud cover in December: 51
The months with the most cloud cover are February, March and December (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in December
Washingtonville, NY
- Average visibility in December: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Washingtonville, New York, USA
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