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
With December's arrival, Morrisville's weather changes as the average high-temperature falls from a wintry 39.7°F (4.3°C) in November to a freezing cold 28.6°F (-1.9°C). Morrisville usually reports an average low-temperature of 18.5°F (-7.5°C) during the month of December.Humidity
The average relative humidity in December in Morrisville is 87%.Rainfall
In December, the rain falls for 9.4 days. Throughout December, 2.68" (68mm) of precipitation is accumulated. In Morrisville, during the entire year, the rain falls for 160.2 days and collects up to 32.8" (833mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Morrisville, in December, during 20 snowfall days, 9.76" (248mm) of snow is typically accumulated. In Morrisville, during the entire year, snow falls for 106.1 days and aggregates up to 63.46" (1612mm) of snow.Daylight
December has the shortest days of the year in Morrisville, with an average of 8h and 54min of daylight.On the first day of December, sunrise is at 7:07 am and sunset at 4:11 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:20 pm EST.
Sunshine
In Morrisville, the average sunshine in December is 2.7h.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, the UV index of 1 transforms into the following advice:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When 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 reading in December?
Average temperature in December
Morrisville, VT
- Average high temperature in December: 28.6°F
The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is January (22.8°F).
- Average low temperature in December: 18.5°F
The month with the highest average low temperature is July (55.8°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).
Average pressure in December
Morrisville, VT
- Average pressure in December: 30.04"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
Morrisville, VT
- Average wind speed in December: 6.4mph
The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in December
Morrisville, VT
- Average humidity in December: 87%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is May (77%).
Average rainfall in December
Morrisville, VT
- Average rainfall in December: 2.68"
The wettest month (with the highest rainfall) is June (3.43").
The driest month (with the least rainfall) is September (2.17").
Average rainfall days in December
Morrisville, VT
- Average rainfall days in December: 9.4 days
The month with the highest number of rainy days is June (18.3 days).
The month with the least rainy days is February (5.2 days).
Average snowfall in December
Morrisville, VT
- Average snowfall in December: 9.76"
The month with the highest snowfall is February (14.29").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Morrisville, VT
- Average snowfall days in December: 20 days
The month with the highest number of snowfall days is January (23.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Morrisville, VT
- 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: 2h and 4min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The months with the least sunshine are January and February (Average sunshine: 2h and 18min).
Average sunshine days in December
Morrisville, VT
- Average sunshine days in December: 6.8 days
The month with the most sunshine days is September (15.8 days).
The month with the least sunshine days is February (5.3 days).
Average UV index in December
Morrisville, VT
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Morrisville, VT
- Average cloud cover in December: 75
The months with the most cloud cover are January and February (Cloud cover 78).
The month with the least cloud cover is July (Cloud cover 39).
Average visibility in December
Morrisville, VT
- Average visibility in December: 4mi
The months with the highest visibility are April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February, March and December (4mi).
Morrisville, Vermont, USA
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