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 shifts into December, a slight alteration in temperatures is observed, with average highs reducing from a chilly 45.7°F (7.6°C) to an icy 35.4°F (1.9°C). The month of December records an average low-temperature of 25.9°F (-3.4°C).Humidity
In December, the average relative humidity is 85%.Rainfall
In South Byron, in December, it is raining for 6.9 days, with typically 1.22" (31mm) of accumulated precipitation. Throughout the year, there are 127.4 rainfall days, and 16.57" (421mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In South Byron, New York, in December, during 11.5 snowfall days, 2.91" (74mm) of snow is typically accumulated. Throughout the year, there are 60.1 snowfall days, and 17.01" (432mm) of snow is accumulated.Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year in South Byron, New York.On the first day of the month, sunrise is at 7:24 am and sunset at 4:38 pm. On the last day of December, sunrise is at 7:43 am and sunset at 4:47 pm EST.
Sunshine
The average sunshine in December in South Byron is 2.9h.UV index
January, February and December, with an average maximum UV index of 1, are months with the lowest UV index in South Byron. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily high UV index of 1 in December translates into this advice:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Frequently asked questions
How cold is December in South Byron?
What is the average humidity in December in South Byron?
How much does it rain in South Byron in December?
How much does it snow in South Byron in December?
What is the month with the shortest days in South Byron?
How many hours of daylight does South Byron have in December?
When is the sunrise / sunset in December in South Byron?
How long on average sun shines in December in South Byron?
When is the lowest UV index in South Byron?
What is the UV index intensity in December in South Byron?
Average temperature in December
South Byron, NY
- Average high temperature in December: 35.4°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (29.3°F).
- Average low temperature in December: 25.9°F
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in December
South Byron, 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 (29.92"Hg).
Average wind speed in December
South Byron, NY
- Average wind speed in December: 8.9mph
The windiest month (with the highest average wind speed) is January (10mph).
The calmest months (with the lowest average wind speed) are July, August and September (6.5mph).
Average humidity in December
South Byron, NY
- Average humidity in December: 85%
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are May and July (77%).
Average rainfall in December
South Byron, NY
- Average rainfall in December: 1.22"
The wettest month (with the highest rainfall) is May (1.97").
The driest month (with the least rainfall) is January (0.83").
Average rainfall days in December
South Byron, NY
- Average rainfall days in December: 6.9 days
The month with the highest number of rainy days is July (15.2 days).
The month with the least rainy days is January (4.3 days).
Average snowfall in December
South Byron, NY
- Average snowfall in December: 2.91"
The month with the highest snowfall is February (4.37").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
South Byron, NY
- Average snowfall days in December: 11.5 days
The month with the highest number of snowfall days is February (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
South Byron, 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: 2h and 5min
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 24min).
Average sunshine days in December
South Byron, NY
- Average sunshine days in December: 15.3 days
The month with the most sunshine days is September (16.7 days).
The month with the least sunshine days is February (11 days).
Average UV index in December
South Byron, 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, February and December (UV index 1).
Average cloud cover in December
South Byron, NY
- Average cloud cover in December: 71
The month with the most cloud cover is January (Cloud cover 76).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
South Byron, NY
- Average visibility in December: 6mi
The months with the highest visibility are April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and March (5mi).
South Byron, New York, USA
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