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
In December, the meteorological conditions alter, with the average high-temperature shifting from a chilly 45.9°F (7.7°C) in November to an icy 36.3°F (2.4°C). December nights in Irondequoit reflect a consistent temperature dip to a subzero cold 28.6°F (-1.9°C), a slight descent from daytime peaks.Humidity
In December, the average relative humidity in Irondequoit, New York, is 81%.Rainfall
In December, in Irondequoit, the rain falls for 10.7 days. Throughout December, 2.68" (68mm) of precipitation is accumulated. Throughout the year, there are 167.9 rainfall days, and 31.18" (792mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In December, it is snowing for 12.8 days. Throughout December, 4.37" (111mm) of snow is accumulated. In Irondequoit, during the entire year, snow falls for 62.3 days and aggregates up to 20.63" (524mm) of snow.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 Irondequoit, sunrise is at 7:23 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 4:45 pm EST.
Sunshine
The average sunshine in December is 3h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 1 suggests these recommendations:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Frequently asked questions
How cold is December in Irondequoit?
What is the average humidity in December in Irondequoit?
How much does it rain in Irondequoit in December?
How many days does it snow in December in Irondequoit?
What is the month with the shortest days in Irondequoit?
What is the average length of the day in December in Irondequoit?
When are sunrise and sunset in December in Irondequoit?
How long on average sun shines in December in Irondequoit?
What are the months with the lowest UV index in Irondequoit?
What is the UV index intensity in December in Irondequoit?
Average temperature in December
Irondequoit, NY
- Average high temperature in December: 36.3°F
The warmest month (with the highest average high temperature) is July (76.5°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in December: 28.6°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).
Average pressure in December
Irondequoit, NY
- Average pressure in December: 30.06"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
Irondequoit, NY
- Average wind speed in December: 12.4mph
The windiest month (with the highest average wind speed) is January (13.2mph).
The calmest month (with the lowest average wind speed) is July (7.7mph).
Average humidity in December
Irondequoit, NY
- Average humidity in December: 81%
The months with the highest relative humidity are January and February (83%).
The months with the lowest relative humidity are August and September (75%).
Average rainfall in December
Irondequoit, NY
- Average rainfall in December: 2.68"
The wettest month (with the highest rainfall) is October (3.23").
The driest month (with the least rainfall) is September (2.01").
Average rainfall days in December
Irondequoit, NY
- Average rainfall days in December: 10.7 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is February (7.8 days).
Average snowfall in December
Irondequoit, NY
- Average snowfall in December: 4.37"
The month with the highest snowfall is February (5.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Irondequoit, NY
- Average snowfall days in December: 12.8 days
The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Irondequoit, 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 42min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days in December
Irondequoit, NY
- Average sunshine days in December: 8.1 days
The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is February (7.3 days).
Average UV index in December
Irondequoit, 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
Irondequoit, NY
- Average cloud cover in December: 70
The month with the most cloud cover is January (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 27).
Average visibility in December
Irondequoit, 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).
Irondequoit, New York, USA
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