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 chilly 43.7°F (6.5°C) in November to a wintry 33.3°F (0.7°C). In the month of December, the average low-temperature usually rests at a freezing cold 23.9°F (-4.5°C).Humidity
In Castle Creek, the average relative humidity in December is 86%.Rainfall
In Castle Creek, New York, in December, during 11.2 rainfall days, 2.76" (70mm) of precipitation is typically accumulated. In Castle Creek, during the entire year, the rain falls for 173.5 days and collects up to 35.67" (906mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Castle Creek, in December, during 18.2 snowfall days, 8.54" (217mm) of snow is typically accumulated. Throughout the year, there are 94.8 snowfall days, and 48.82" (1240mm) of snow is accumulated.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:13 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 4:41 pm EST.
Sunshine
In Castle Creek, the average sunshine in December is 2.9h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index, 1 in December, converts into the following recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Experience reduced UV exposure by about half when donning a wide-brim hat. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Castle Creek have in December?
What time are sunrise and sunset in December?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Castle Creek, NY
- Average high temperature in December: 33.3°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (27.3°F).
- Average low temperature in December: 23.9°F
The month with the highest average low temperature is July (57.4°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).
Average pressure in December
Castle Creek, NY
- Average pressure in December: 30.08"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Castle Creek, NY
- Average wind speed in December: 8.9mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in December
Castle Creek, NY
- Average humidity in December: 86%
The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are April, May, June and July (80%).
Average rainfall in December
Castle Creek, NY
- Average rainfall in December: 2.76"
The wettest month (with the highest rainfall) is June (3.58").
The driest months (with the least rainfall) are January and November (2.4").
Average rainfall days in December
Castle Creek, NY
- Average rainfall days in December: 11.2 days
The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is February (7.3 days).
Average snowfall in December
Castle Creek, NY
- Average snowfall in December: 8.54"
The month with the highest snowfall is February (10.87").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Castle Creek, NY
- Average snowfall days in December: 18.2 days
The month with the highest number of snowfall days is January (21.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Castle Creek, NY
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 2h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 2h and 30min).
Average sunshine days in December
Castle Creek, NY
- Average sunshine days in December: 6.5 days
The month with the most sunshine days is September (14.3 days).
The month with the least sunshine days is February (5.7 days).
Average UV index in December
Castle Creek, 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, February and December (UV index 1).
Average cloud cover in December
Castle Creek, NY
- Average cloud cover in December: 71
The month with the most cloud cover is February (Cloud cover 74).
The month with the least cloud cover is July (Cloud cover 39).
Average visibility in December
Castle Creek, NY
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).
Castle Creek, New York, USA
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