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
December indicates a shift in the average high-temperature, from November's chilly 47.5°F (8.6°C) to a wintry 37.2°F (2.9°C). Summitville observes an average low-temperature of 25.7°F (-3.5°C) during December nights.Humidity
December is the most humid month in Summitville, with an average relative humidity of 83%.Rainfall
In Summitville, during December, the rain falls for 10.1 days and regularly aggregates up to 1.77" (45mm) of precipitation. Throughout the year, in Summitville, there are 147.3 rainfall days, and 19.88" (505mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In December, in Summitville, New York, it is snowing for 6.6 days. Throughout December, 2.48" (63mm) of snow is accumulated. Throughout the year, there are 35.3 snowfall days, and 13.78" (350mm) of snow is accumulated.Daylight
December has the shortest days of the year in Summitville, with an average of 9h and 12min of daylight.On the first day of December, sunrise is at 7:05 am and sunset at 4:28 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:37 pm EST.
Sunshine
In December, the average sunshine is 4.7h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The daily maximum UV index of 1 in December interprets into the following advice:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. To protect against the Sun's most potent rays, avoid direct exposure around midday. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Summitville in December?
What is the most humid month in Summitville?
What is the average humidity in December in Summitville?
How much does it rain in Summitville in December?
How many days does it snow in December in Summitville?
What is the month with the shortest days in Summitville?
What is the average length of the day in December in Summitville?
When are sunrise and sunset in December in Summitville?
How many hours of sunshine does Summitville have in December?
What is the month with the lowest UV index in Summitville?
How high is the UV index in December in Summitville?
Average temperature in December
Summitville, NY
- Average high temperature in December: 37.2°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (31.8°F).
- Average low temperature in December: 25.7°F
The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in December
Summitville, 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
Summitville, NY
- Average wind speed in December: 6.2mph
The windiest months (with the highest average wind speed) are January, February and March (6.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity in December
Summitville, NY
- Average humidity in December: 83%
The month with the highest relative humidity is December (83%).
The months with the lowest relative humidity are April and July (76%).
Average rainfall in December
Summitville, NY
- Average rainfall in December: 1.77"
The wettest month (with the highest rainfall) is July (2.13").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in December
Summitville, NY
- Average rainfall days in December: 10.1 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (7.1 days).
Average snowfall in December
Summitville, NY
- Average snowfall in December: 2.48"
The month with the highest snowfall is February (3.62").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Summitville, NY
- Average snowfall days in December: 6.6 days
The month with the highest number of snowfall days is February (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Summitville, 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 24min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in December
Summitville, NY
- Average sunshine days in December: 17.3 days
The month with the most sunshine days is January (18.3 days).
The month with the least sunshine days is May (11.5 days).
Average UV index in December
Summitville, NY
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Summitville, NY
- Average cloud cover in December: 50
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility in December
Summitville, NY
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Summitville, New York, USA
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