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 brings a reduction in the average high-temperature, from a cool 54.9°F (12.7°C) in November to a chilly 44.2°F (6.8°C). An average low-temperature of 29.5°F (-1.4°C) is noted in Morrisville during the month of December.Humidity
In Morrisville, Missouri, the average relative humidity in December is 75%.Rainfall
The months with the least rainfall in Morrisville are January and December Rain falls for 6.9 days and accumulates 1.57" (40mm) of rain.Snowfall
January through May, November and December are months with snowfall. In December, it is snowing for 3.4 days. Throughout December, 1.22" (31mm) of snow is accumulated. Throughout the year, there are 18.4 snowfall days, and 8.35" (212mm) of snow is accumulated.Daylight
With an average of 9h and 36min of daylight, December has the shortest days of the year.On the first day of December in Morrisville, sunrise is at 7:10 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 5:05 pm CST.
Sunshine
In Morrisville, the average sunshine in December is 5.5h.UV index
The months with the lowest UV index in Morrisville are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The daily maximum UV index of 2 in December interprets into the following advice:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Frequently asked questions
How cold is it in Morrisville in December?
What is the average humidity in December in Morrisville?
What is the driest month in Morrisville?
How many days does it rain in December in Morrisville?
How many days does it snow in December in Morrisville?
What is the month with the shortest days in Morrisville?
How many hours of daylight does Morrisville have in December?
What time are sunrise and sunset in December in Morrisville?
How many hours of sunshine does Morrisville have in December?
What are the months with the lowest UV index in Morrisville?
What is the UV index reading in December in Morrisville?
Average temperature in December
Morrisville, MO
- Average high temperature in December: 44.2°F
The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (41°F).
- Average low temperature in December: 29.5°F
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).
Average pressure in December
Morrisville, MO
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are April and June (29.93"Hg).
Average wind speed in December
Morrisville, MO
- Average wind speed in December: 9.4mph
The windiest month (with the highest average wind speed) is March (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.4mph).
Average humidity in December
Morrisville, MO
- Average humidity in December: 75%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Morrisville, MO
- Average rainfall in December: 1.57"
The wettest month (with the highest rainfall) is May (5.28").
The driest months (with the least rainfall) are January and December (1.57").
Average rainfall days in December
Morrisville, MO
- Average rainfall days in December: 6.9 days
The month with the highest number of rainy days is May (17.4 days).
The months with the least rainy days are January and December (6.9 days).
Average snowfall in December
Morrisville, MO
- Average snowfall in December: 1.22"
The month with the highest snowfall is February (2.64").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Morrisville, MO
- Average snowfall days in December: 3.4 days
The month with the highest number of snowfall days is February (6.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Morrisville, MO
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 5h and 3min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in December
Morrisville, MO
- Average sunshine days in December: 20.5 days
The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is May (11.1 days).
Average UV index in December
Morrisville, MO
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Morrisville, MO
- Average cloud cover in December: 42
The month with the most cloud cover is March (Cloud cover 47).
The months with the least cloud cover are June, July and August (Cloud cover 27).
Average visibility in December
Morrisville, MO
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Morrisville, Missouri, USA
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