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 sea temperature 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
With December's onset, the weather shows a temperature decrease, transitioning from a frosty 45.7°F (7.6°C) in November to an icy 36.1°F (2.3°C). December nighttime temperatures in Olcott hover close to the daytime peak with an average of 29.3°F (-1.5°C).Humidity
In December, the average relative humidity is 81%.Rainfall
In December, in Olcott, the rain falls for 11.2 days. Throughout December, 2.2" (56mm) of precipitation is accumulated. In Olcott, during the entire year, the rain falls for 168.5 days and collects up to 29.02" (737mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In December, in Olcott, it is snowing for 11.8 days. Throughout December, 3.39" (86mm) of snow is accumulated. Throughout the year, there are 59.1 snowfall days, and 17.28" (439mm) of snow is accumulated.Ocean temperature
In Olcott, the average seawater temperature in December is 41.2°F (5.1°C).Note: One needs to be cautious in 41.2°F (5.1°C) waters. 55.4°F (13°C) is already forbidding, but sub14°F (-10°C) can seriously disrupt your breathing and lead to a frigid shock, considering one's well-being.
Daylight
With an average of 9h and 0min of daylight, December has the shortest days of the year.On the first day of December in Olcott, sunrise is at 7:28 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:47 am and sunset at 4:49 pm EST.
Sunshine
The average sunshine in December is 3h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Olcott. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 1 in December converts into the following recommendations:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Always opt for UVA and UVB-resistant sunglasses on radiant days. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Olcott in December?
What is the average humidity in December in Olcott?
How many days does it rain in December in Olcott?
How much does it snow in Olcott in December?
What is the water temperature in December in Olcott?
What is the month with the shortest days in Olcott?
What is the average length of the day in December in Olcott?
When is the sunrise / sunset in December in Olcott?
How long on average sun shines in December in Olcott?
What are the months with the lowest UV index in Olcott?
What is the UV index reading in December in Olcott?
Average temperature in December
Olcott, NY
- Average high temperature in December: 36.1°F
The warmest month (with the highest average high temperature) is July (76.1°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in December: 29.3°F
The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).
Average pressure in December
Olcott, NY
- Average pressure in December: 30.05"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Olcott, NY
- Average wind speed in December: 12.7mph
The windiest month (with the highest average wind speed) is January (13.5mph).
The calmest month (with the lowest average wind speed) is July (7.7mph).
Average humidity in December
Olcott, NY
- Average humidity in December: 81%
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is September (74%).
Average rainfall in December
Olcott, NY
- Average rainfall in December: 2.2"
The wettest month (with the highest rainfall) is May (3.03").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in December
Olcott, NY
- Average rainfall days in December: 11.2 days
The month with the highest number of rainy days is October (18.5 days).
The month with the least rainy days is February (8.5 days).
Average snowfall in December
Olcott, NY
- Average snowfall in December: 3.39"
The month with the highest snowfall is February (4.49").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Olcott, NY
- Average snowfall days in December: 11.8 days
The month with the highest number of snowfall days is January (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in December
Olcott, NY
- Average sea temperature in December: 41.3°F
The best month for swimming (with the highest average sea temperature) is August (72.9°F).
The coldest month (with the lowest average sea temperature) is March (35.7°F).
Average daylight in December /
Average sunshine in December
Olcott, NY
- Average daylight in December: 9h and 0min
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 0min).
- Average sunshine in December: 3h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days in December
Olcott, NY
- Average sunshine days in December: 8.6 days
The month with the most sunshine days is September (13.4 days).
The month with the least sunshine days is February (6.6 days).
Average UV index in December
Olcott, NY
- Average UV index in December: 1
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Olcott, NY
- Average cloud cover in December: 69
The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in December
Olcott, NY
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Olcott, New York, USA
Weather forecast for your location
2. Allow the app to use your location