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 from November to December involves a decrease in the average high-temperature, dropping from a cold 42.3°F (5.7°C) to a freezing cold 30.9°F (-0.6°C). In Morrisonville, in December, the average low-temperature is 20.7°F (-6.3°C).Humidity
In December, the average relative humidity is 83%.Rainfall
In Morrisonville, in December, it is raining for 11 days, with typically 2.09" (53mm) of accumulated precipitation. Throughout the year, there are 162.6 rainfall days, and 27.6" (701mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Morrisonville, in December, during 14.5 snowfall days, 5.59" (142mm) of snow is typically accumulated. Throughout the year, there are 78.2 snowfall days, and 37.13" (943mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 8h and 54min of daylight.On the first day of the month, sunrise is at 7:11 am and sunset at 4:15 pm. On the last day of December, sunrise is at 7:31 am and sunset at 4:23 pm EST.
Sunshine
The average sunshine in December is 4h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, the UV index of 1 transforms into the following advice:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December in Morrisonville?
How much does it rain in December?
How much does it snow in Morrisonville in December?
What is the month with the shortest days in Morrisonville?
How many hours of daylight does Morrisonville have in December?
What time are sunrise and sunset in December in Morrisonville?
How many hours of sunshine does Morrisonville have in December?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
Morrisonville, NY
- Average high temperature in December: 30.9°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (24.8°F).
- Average low temperature in December: 20.7°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 (12.4°F).
Average pressure in December
Morrisonville, NY
- Average pressure in December: 30.05"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Morrisonville, NY
- Average wind speed in December: 6.6mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in December
Morrisonville, NY
- Average humidity in December: 83%
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are April and May (75%).
Average rainfall in December
Morrisonville, NY
- Average rainfall in December: 2.09"
The wettest month (with the highest rainfall) is June (3.15").
The driest month (with the least rainfall) is February (1.73").
Average rainfall days in December
Morrisonville, NY
- Average rainfall days in December: 11 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in December
Morrisonville, NY
- Average snowfall in December: 5.59"
The month with the highest snowfall is February (10").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Morrisonville, NY
- Average snowfall days in December: 14.5 days
The month with the highest number of snowfall days is January (19.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Morrisonville, NY
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 4h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in December
Morrisonville, NY
- Average sunshine days in December: 10.5 days
The month with the most sunshine days is September (14.9 days).
The month with the least sunshine days is February (8.6 days).
Average UV index in December
Morrisonville, 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
Morrisonville, NY
- Average cloud cover in December: 60
The month with the most cloud cover is February (Cloud cover 64).
The months with the least cloud cover are July, August and September (Cloud cover 31).
Average visibility in December
Morrisonville, NY
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
Morrisonville, New York, USA
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