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 Massena, the average high-temperature in December drops from a wintry 42.1°F (5.6°C) in November to a freezing cold 29.7°F (-1.3°C). The average low-temperature, in Massena, is 19.4°F (-7°C).Humidity
In December, the average relative humidity in Massena, New York, is 86%.Rainfall
In December, the rain falls for 10.2 days. Throughout December, 2.32" (59mm) of precipitation is accumulated. In Massena, during the entire year, the rain falls for 160.1 days and collects up to 29.76" (756mm) of precipitation.Snowfall
Months with snowfall in Massena are January through May, October through December. In Massena, in December, during 13.1 snowfall days, 5.98" (152mm) of snow is typically accumulated. In Massena, during the entire year, snow falls for 70.6 days and aggregates up to 36.02" (915mm) of snow.Daylight
December has the shortest days of the year in Massena, New York, with an average of 8h and 51min of daylight.On the first day of December in Massena, sunrise is at 7:17 am and sunset at 4:19 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 4:27 pm EST.
Sunshine
In Massena, New York, the average sunshine in December is 3.1h.UV index
January 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 minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The average daily UV index of 1 in December transform into the following instructions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
FAQ
What is the temperature in December in Massena?
What is the average humidity in December in Massena?
How many days does it rain in December in Massena?
How many days does it snow in December in Massena?
What is the month with the shortest days in Massena?
What is the average length of the day in December in Massena?
When is the sunrise / sunset in December in Massena?
How long on average sun shines in December in Massena?
What is the month with the lowest UV index in Massena?
What is the UV index reading in December in Massena?
Average temperature in December
Massena, NY
- Average high temperature in December: 29.7°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (23°F).
- Average low temperature in December: 19.4°F
The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).
Average pressure in December
Massena, NY
- Average pressure in December: 30.04"Hg
The months with the highest atmospheric pressure are March and November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
Massena, NY
- Average wind speed in December: 8.1mph
The windiest month (with the highest average wind speed) is February (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in December
Massena, NY
- Average humidity in December: 86%
The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is April (77%).
Average rainfall in December
Massena, NY
- Average rainfall in December: 2.32"
The wettest month (with the highest rainfall) is August (3.23").
The driest month (with the least rainfall) is September (2.01").
Average rainfall days in December
Massena, NY
- Average rainfall days in December: 10.2 days
The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is February (6.2 days).
Average snowfall in December
Massena, NY
- Average snowfall in December: 5.98"
The month with the highest snowfall is January (9.02").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Massena, NY
- Average snowfall days in December: 13.1 days
The month with the highest number of snowfall days is February (17.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Massena, NY
- Average daylight in December: 8h and 51min
The month with the longest days is June (Average daylight: 15h and 33min).
The month with the shortest days is December (Average daylight: 8h and 51min).
- Average sunshine in December: 3h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 2h and 42min).
Average sunshine days in December
Massena, NY
- Average sunshine days in December: 11.6 days
The month with the most sunshine days is November (16 days).
The month with the least sunshine days is July (9.1 days).
Average UV index in December
Massena, 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 and December (UV index 1).
Average cloud cover in December
Massena, NY
- Average cloud cover in December: 68
The month with the most cloud cover is February (Cloud cover 73).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in December
Massena, NY
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
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