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 the beginning of December, the average high-temperature shows a decrease, transitioning from a frosty 45.3°F (7.4°C) in November to a wintry 35.6°F (2°C). Throughout December, Mountain Dale records an average temperature of 23.9°F (-4.5°C) at night.Humidity
February and December, with an average relative humidity of 85%, are the most humid months in Mountain Dale.Rainfall
In Mountain Dale, New York, during December, the rain falls for 9.8 days and regularly aggregates up to 2.32" (59mm) of precipitation. In Mountain Dale, during the entire year, the rain falls for 153.7 days and collects up to 26.73" (679mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. The month with the most snowfall in Mountain Dale is December, when snow falls for 8.1 days and typically aggregates up to 5.04" (128mm) of snow.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:06 am and sunset at 4:28 pm. On the last day of December, in Mountain Dale, New York, sunrise is at 7:25 am and sunset at 4:37 pm EST.
Sunshine
The average sunshine in December in Mountain Dale is 4.3h.UV index
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Mountain Dale. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: A daily maximum UV index of 2 in December translates into the following instructions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Frequently asked questions
How cold is it in Mountain Dale in December?
What are the most humid months in Mountain Dale?
What is the average humidity in December in Mountain Dale?
How many days does it rain in December in Mountain Dale?
When does it snow the most in Mountain Dale?
How many days does it snow in December in Mountain Dale?
What is the month with the shortest days in Mountain Dale?
How many hours of daylight does Mountain Dale have in December?
When are sunrise and sunset in December in Mountain Dale?
How many hours of sunshine does Mountain Dale have in December?
When is the lowest UV index in Mountain Dale?
What is the UV index intensity in December in Mountain Dale?
Average temperature in December
Mountain Dale, NY
- Average high temperature in December: 35.6°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (29.8°F).
- Average low temperature in December: 23.9°F
The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in December
Mountain Dale, 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
Mountain Dale, NY
- Average wind speed in December: 7.1mph
The windiest months (with the highest average wind speed) are January and February (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
Mountain Dale, NY
- Average humidity in December: 85%
The months with the highest relative humidity are February and December (85%).
The month with the lowest relative humidity is July (77%).
Average rainfall in December
Mountain Dale, NY
- Average rainfall in December: 2.32"
The wettest month (with the highest rainfall) is May (2.8").
The driest months (with the least rainfall) are January and February (1.65").
Average rainfall days in December
Mountain Dale, NY
- Average rainfall days in December: 9.8 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (7.5 days).
Average snowfall in December
Mountain Dale, NY
- Average snowfall in December: 5.04"
The month with the highest snowfall is December (5.04").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Mountain Dale, NY
- Average snowfall days in December: 8.1 days
The month with the highest number of snowfall days is February (10.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Mountain Dale, NY
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 4h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days in December
Mountain Dale, NY
- Average sunshine days in December: 16.2 days
The month with the most sunshine days is January (18.3 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in December
Mountain Dale, NY
- Average UV index in December: 2
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, February, March, October, November and December (UV index 2).
Average cloud cover in December
Mountain Dale, NY
- Average cloud cover in December: 55
The month with the most cloud cover is February (Cloud cover 57).
The month with the least cloud cover is July (Cloud cover 38).
Average visibility in December
Mountain Dale, NY
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (5mi).
The months with the lowest visibility are May and September (4mi).
Mountain Dale, New York, USA
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