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
A decrease in the average high-temperature is observed during December, shifting from a chilly 44.6°F (7°C) in November to a wintry 34.3°F (1.3°C). During the month of December, Sempronius identifies an average nighttime low-temperature of 25.3°F (-3.7°C), slightly lower than its daytime counterpart.Humidity
The average relative humidity in December in Sempronius is 86%.Rainfall
In December, in Sempronius, the rain falls for 8.9 days. Throughout December, 1.1" (28mm) of precipitation is accumulated. Throughout the year, there are 137.8 rainfall days, and 13.74" (349mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Sempronius, New York. In December, in Sempronius, it is snowing for 15.1 days. Throughout December, 3.23" (82mm) of snow is accumulated. Throughout the year, in Sempronius, there are 76.2 snowfall days, and 16.93" (430mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 6min of daylight.On the first day of December, sunrise is at 7:16 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 4:41 pm EST.
Sunshine
The average sunshine in December is 3h.UV index
February and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: A daily high UV index of 1 in December leads to these guidelines:
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. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Frequently asked questions
How cold is December in Sempronius?
What is the average humidity in December in Sempronius?
How many days does it rain in December in Sempronius?
How many days does it snow in December in Sempronius?
What is the month with the shortest days in Sempronius?
How many hours of daylight does Sempronius have in December?
When is the sunrise / sunset in December in Sempronius?
How long on average sun shines in December in Sempronius?
What is the month with the lowest UV index in Sempronius?
What is the UV index reading in December in Sempronius?
Average temperature in December
Sempronius, NY
- Average high temperature in December: 34.3°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (27.9°F).
- Average low temperature in December: 25.3°F
The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).
Average pressure in December
Sempronius, 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 (29.93"Hg).
Average wind speed in December
Sempronius, NY
- Average wind speed in December: 9.8mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is July (6mph).
Average humidity in December
Sempronius, NY
- Average humidity in December: 86%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April and May (79%).
Average rainfall in December
Sempronius, NY
- Average rainfall in December: 1.1"
The wettest month (with the highest rainfall) is May (1.5").
The driest month (with the least rainfall) is September (0.67").
Average rainfall days in December
Sempronius, NY
- Average rainfall days in December: 8.9 days
The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is February (6.7 days).
Average snowfall in December
Sempronius, NY
- Average snowfall in December: 3.23"
The month with the highest snowfall is February (3.74").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Sempronius, NY
- Average snowfall days in December: 15.1 days
The month with the highest number of snowfall days is January (18.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Sempronius, NY
- Average daylight in December: 9h and 1min
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 6min).
- Average sunshine in December: 3h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 2h and 30min).
Average sunshine days in December
Sempronius, NY
- Average sunshine days in December: 10.5 days
The month with the most sunshine days is September (17.1 days).
The month with the least sunshine days is February (7.9 days).
Average UV index in December
Sempronius, 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 February and December (UV index 1).
Average cloud cover in December
Sempronius, NY
- Average cloud cover in December: 70
The month with the most cloud cover is February (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in December
Sempronius, NY
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, July and December (5mi).
Sempronius, New York, USA
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