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 is marked by a subtle drop in average high-temperatures, transitioning from a cool 51.3°F (10.7°C) in November to an icy 42.4°F (5.8°C). December nights in Sunnyside register a minor temperature decline, steadying at a still wintry 34.2°F (1.2°C).Humidity
February, May and December, with an average relative humidity of 75%, are the most humid months in Sunnyside.Rainfall
In Sunnyside, in December, during 5.8 rainfall days, 0.71" (18mm) of precipitation is typically accumulated. Throughout the year, in Sunnyside, there are 89.8 rainfall days, and 6.73" (171mm) of precipitation is accumulated.Snowfall
Months with snowfall in Sunnyside are January through March and December. The months with the most snowfall are February, March and December, with an average 0.16" (4mm) of accumulated snow.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:01 am and sunset at 4:28 pm. On the last day of December, sunrise is at 7:19 am and sunset at 4:38 pm EST.
Sunshine
The average sunshine in December is 5h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. 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 December in Sunnyside?
What is the most humid month in Sunnyside?
What is the average humidity in December in Sunnyside?
How many days does it rain in December in Sunnyside?
What is the snowiest month in Sunnyside?
When does it start snowing in Sunnyside?
What is the month with the shortest days in Sunnyside?
What is the average length of the day in December in Sunnyside?
When are sunrise and sunset in December in Sunnyside?
How many hours of sunshine does Sunnyside have in December?
What is the month with the lowest UV index in Sunnyside?
How high is the UV index in December in Sunnyside?
Average temperature in December
Sunnyside, NY
- Average high temperature in December: 42.4°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (36.7°F).
- Average low temperature in December: 34.2°F
The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (26.6°F).
Average pressure in December
Sunnyside, NY
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Sunnyside, NY
- Average wind speed in December: 10.1mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).
Average humidity in December
Sunnyside, NY
- Average humidity in December: 75%
The months with the highest relative humidity are February, May and December (75%).
The month with the lowest relative humidity is August (70%).
Average rainfall in December
Sunnyside, NY
- Average rainfall in December: 0.71"
The wettest month (with the highest rainfall) is July (0.75").
The driest month (with the least rainfall) is September (0.2").
Average rainfall days in December
Sunnyside, NY
- Average rainfall days in December: 5.8 days
The month with the highest number of rainy days is July (9.9 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in December
Sunnyside, NY
- Average snowfall in December: 0.16"
The months with the highest snowfall are February, March and December (0.16").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Sunnyside, NY
- Average snowfall days in December: 1.5 days
The months with the highest number of snowfall days are January and February (2.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Sunnyside, NY
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
Sunnyside, NY
- Average sunshine days in December: 24 days
The months with the most sunshine days are January and December (24 days).
The month with the least sunshine days is June (17.8 days).
Average UV index in December
Sunnyside, NY
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Sunnyside, NY
- Average cloud cover in December: 47
The months with the most cloud cover are February, March and December (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 29).
Average visibility in December
Sunnyside, NY
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Sunnyside, New York, USA
Weather forecast for your location
2. Allow the app to use your location