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's onset corresponds with a shift in the average high-temperature, moving from a frosty 44.8°F (7.1°C) in November to a cold 34.5°F (1.4°C). December in South Onondaga witnesses a minor deviation from daytime peaks, with an average nighttime temperature of 25.5°F (-3.6°C).Humidity
In South Onondaga, the average relative humidity in December is 85%.Rainfall
In South Onondaga, in December, it is raining for 9.2 days, with typically 1.26" (32mm) of accumulated precipitation. In South Onondaga, during the entire year, the rain falls for 141.4 days and collects up to 16.57" (421mm) of precipitation.Snowfall
Months with snowfall in South Onondaga are January through April, October through December. The months with the most snowfall in South Onondaga are February and December, with an average 3.62" (92mm) of accumulated snow.Daylight
December has the shortest days of the year, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:16 am and sunset at 4:31 pm. On the last day of December, sunrise is at 7:35 am and sunset at 4:40 pm EST.
Sunshine
In South Onondaga, the average sunshine in December is 2.9h.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 vulnerability from exposure to the Sun's UV rays for average individuals.Note: A daily high UV index of 1 in December leads to these guidelines:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. It's recommended to limit sun exposure when its radiation is at its peak during midday. Enhance your sun protection with tightly woven, yet airy clothing. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in South Onondaga?
What is the average humidity in December in South Onondaga?
How many days does it rain in December in South Onondaga?
What is the snowiest month in South Onondaga?
How many days does it snow in December in South Onondaga?
What is the month with the shortest days in South Onondaga?
What is the average length of the day in December in South Onondaga?
What time are sunrise and sunset in December in South Onondaga?
How many hours of sunshine does South Onondaga have in December?
What is the month with the lowest UV index in South Onondaga?
How high is the UV index in December in South Onondaga?
Average temperature in December
South Onondaga, NY
- Average high temperature in December: 34.5°F
The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (28.4°F).
- Average low temperature in December: 25.5°F
The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in December
South Onondaga, 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 Onondaga, NY
- Average wind speed in December: 9.9mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in December
South Onondaga, NY
- Average humidity in December: 85%
The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is April (78%).
Average rainfall in December
South Onondaga, NY
- Average rainfall in December: 1.26"
The wettest month (with the highest rainfall) is May (1.77").
The driest month (with the least rainfall) is September (1.02").
Average rainfall days in December
South Onondaga, NY
- Average rainfall days in December: 9.2 days
The months with the highest number of rainy days are May and July (15 days).
The month with the least rainy days is January (6.7 days).
Average snowfall in December
South Onondaga, NY
- Average snowfall in December: 3.62"
The months with the highest snowfall are February and December (3.62").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
South Onondaga, NY
- Average snowfall days in December: 14.3 days
The month with the highest number of snowfall days is January (18.3 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 Onondaga, 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 18min).
The month with the least sunshine is February (Average sunshine: 2h and 24min).
Average sunshine days in December
South Onondaga, NY
- Average sunshine days in December: 10.3 days
The month with the most sunshine days is September (17.2 days).
The month with the least sunshine days is February (7.2 days).
Average UV index in December
South Onondaga, 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 January and December (UV index 1).
Average cloud cover in December
South Onondaga, NY
- Average cloud cover in December: 71
The months with the most cloud cover are January and February (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in December
South Onondaga, NY
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
South Onondaga, New York, USA
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