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
The shift to December brings a decrease in the average high-temperature, falling from a frosty 44.6°F (7°C) in November to an icy 34.3°F (1.3°C). During the month of December, the nighttime temperature falls to an average of 24.6°F (-4.1°C).Humidity
In December, the average relative humidity in Castile is 86%.Rainfall
In Castile, New York, 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
January through May, October through December are months with snowfall in Castile, New York. In Castile, New York, during December, snow falls for 18.3 days and regularly aggregates up to 7.64" (194mm) of snow. Throughout the year, in Castile, there are 91.4 snowfall days, and 42.24" (1073mm) of snow is accumulated.Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year in Castile.On the first day of December, sunrise is at 7:23 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 4:48 pm EST.
Sunshine
In December, the average sunshine in Castile 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 the ordinary person.Note: The maximum UV index of 1 during December leads to these instructions:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Castile?
What is the average humidity in December in Castile?
How many days does it rain in December in Castile?
How much does it snow in Castile in December?
What is the month with the shortest days in Castile?
How many hours of daylight does Castile have in December?
When are sunrise and sunset in December in Castile?
How long on average sun shines in December in Castile?
What is the month with the lowest UV index in Castile?
How high is the UV index in December in Castile?
Average temperature in December
Castile, 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
Castile, 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
Castile, 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
Castile, 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
Castile, 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
Castile, 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
Castile, 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
Castile, 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
Castile, 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
Castile, 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
Castile, 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
Castile, 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
Castile, 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).
Castile, New York, USA
Weather forecast for your location
2. Allow the app to use your location