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 onset of December is marked by a decrease in temperature, transitioning from a chilly 43.3°F (6.3°C) in November to a cold 33.6°F (0.9°C). During the month of December, Delevan experiences a steady low-temperature average of 24.3°F (-4.3°C).Humidity
In December, the average relative humidity is 88%.Rainfall
In Delevan, in December, during 10.8 rainfall days, 2.87" (73mm) of precipitation is typically accumulated. In Delevan, during the entire year, the rain falls for 174 days and collects up to 32.99" (838mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Delevan, New York, in December, snow falls for 19 days, with typically accumulated 9.17" (233mm) of snow. In Delevan, during the entire year, snow falls for 96.8 days and aggregates up to 49.61" (1260mm) of snow.Daylight
December has the shortest days of the year in Delevan, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:24 am and sunset at 4:41 pm. On the last day of December, in Delevan, sunrise is at 7:43 am and sunset at 4:51 pm EST.
Sunshine
In Delevan, the average sunshine in December is 2.4h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Delevan, New York. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The daily high UV index of 1 during December translates into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Frequently asked questions
How cold is December in Delevan?
What is the average humidity in December in Delevan?
How many days does it rain in December in Delevan?
How many days does it snow in December in Delevan?
What is the month with the shortest days in Delevan?
How many hours of daylight does Delevan have in December?
When are sunrise and sunset in December in Delevan?
How long on average sun shines in December in Delevan?
What are the months with the lowest UV index in Delevan?
What is the UV index intensity in December in Delevan?
Average temperature in December
Delevan, NY
- Average high temperature in December: 33.6°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (27.5°F).
- Average low temperature in December: 24.3°F
The month with the highest average low temperature is July (58.1°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure in December
Delevan, 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
Delevan, NY
- Average wind speed in December: 9.9mph
The windiest month (with the highest average wind speed) is January (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in December
Delevan, NY
- Average humidity in December: 88%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is May (79%).
Average rainfall in December
Delevan, NY
- Average rainfall in December: 2.87"
The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in December
Delevan, NY
- Average rainfall days in December: 10.8 days
The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in December
Delevan, NY
- Average snowfall in December: 9.17"
The month with the highest snowfall is February (11.57").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Delevan, NY
- Average snowfall days in December: 19 days
The month with the highest number of snowfall days is January (21.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Delevan, 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 6min).
- Average sunshine in December: 2h and 2min
The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 6min).
Average sunshine days in December
Delevan, NY
- Average sunshine days in December: 5.9 days
The month with the most sunshine days is September (12.3 days).
The month with the least sunshine days is February (4.7 days).
Average UV index in December
Delevan, NY
- Average UV index in December: 1
The months with the highest UV index are 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
Delevan, NY
- Average cloud cover in December: 77
The month with the most cloud cover is January (Cloud cover 80).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in December
Delevan, NY
- Average visibility in December: 4mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February and December (4mi).
Delevan, New York, USA
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