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
A subtle decrease in the average high-temperature marks December, falling from November's frosty 44.6°F (7°C) to an icy 34.3°F (1.3°C). In December, the nighttime temperature lowers to an average of 24.6°F (-4.1°C).Humidity
In Perry, the average relative humidity in December is 86%.Rainfall
In Perry, during December, the rain falls for 11 days and regularly aggregates up to 2.44" (62mm) of precipitation. Throughout the year, there are 171.4 rainfall days, and 28.62" (727mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Perry, during December, snow falls for 18.3 days and regularly aggregates up to 7.64" (194mm) of snow. In Perry, during the entire year, snow falls for 91.4 days and aggregates up to 42.24" (1073mm) of 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 7:23 am and sunset at 4:39 pm. On the last day of December, sunrise is at 7:42 am and sunset at 4:48 pm EST.
Sunshine
The average sunshine in December is 3.1h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 1 during December leads to these instructions:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December in Perry?
When is the sunrise / sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Perry, NY
- Average high temperature in December: 34.3°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (28.2°F).
- Average low temperature in December: 24.6°F
The month with the highest average low temperature is July (59.4°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in December
Perry, 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 (29.93"Hg).
Average wind speed in December
Perry, NY
- Average wind speed in December: 9.4mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.4mph).
Average humidity in December
Perry, NY
- Average humidity in December: 86%
The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is May (77%).
Average rainfall in December
Perry, NY
- Average rainfall in December: 2.44"
The wettest month (with the highest rainfall) is May (2.87").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in December
Perry, NY
- Average rainfall days in December: 11 days
The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is February (7.4 days).
Average snowfall in December
Perry, NY
- Average snowfall in December: 7.64"
The month with the highest snowfall is February (10.2").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Perry, NY
- Average snowfall days in December: 18.3 days
The month with the highest number of snowfall days is January (20.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Perry, 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: 3h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).
Average sunshine days in December
Perry, NY
- Average sunshine days in December: 7 days
The month with the most sunshine days is September (13.5 days).
The month with the least sunshine days is February (5.7 days).
Average UV index in December
Perry, 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
Perry, NY
- Average cloud cover in December: 70
The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Perry, NY
- Average visibility in December: 5mi
The months with the highest visibility are April, May and June (6mi).
The months with the lowest visibility are January and February (4mi).
Perry, New York, USA
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