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
A shift in the average high-temperature occurs in December, reducing from a fresh 52.9°F (11.6°C) in November to a cold 42.1°F (5.6°C). Morrison experiences an average low-temperature of 29.1°F (-1.6°C) in month of December.Humidity
The average relative humidity in December is 77%.Rainfall
In Morrison, during December, the rain falls for 7.5 days and regularly aggregates up to 1.85" (47mm) of precipitation. In Morrison, during the entire year, the rain falls for 146.9 days and collects up to 29.76" (756mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In December, it is snowing for 3.9 days. Throughout December, 1.57" (40mm) of snow is accumulated. Throughout the year, there are 20.1 snowfall days, and 8.74" (222mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 7:06 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:55 pm CST.
Sunshine
In December, the average sunshine is 5h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: A typical high UV index of 2 in December suggests the following recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
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 in Morrison?
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?
What time are sunrise and sunset in December?
How long on average sun shines in December in Morrison?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
Morrison, MO
- Average high temperature in December: 42.1°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (37.4°F).
- Average low temperature in December: 29.1°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (23.7°F).
Average pressure in December
Morrison, MO
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Morrison, MO
- Average wind speed in December: 8.2mph
The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.4mph).
Average humidity in December
Morrison, MO
- Average humidity in December: 77%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Morrison, MO
- Average rainfall in December: 1.85"
The wettest month (with the highest rainfall) is May (3.62").
The driest month (with the least rainfall) is January (1.5").
Average rainfall days in December
Morrison, MO
- Average rainfall days in December: 7.5 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in December
Morrison, MO
- Average snowfall in December: 1.57"
The month with the highest snowfall is February (2.8").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Morrison, MO
- Average snowfall days in December: 3.9 days
The month with the highest number of snowfall days is February (6.3 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Morrison, MO
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in December
Morrison, MO
- Average sunshine days in December: 18.9 days
The month with the most sunshine days is January (19.3 days).
The month with the least sunshine days is May (11 days).
Average UV index in December
Morrison, MO
- Average UV index in December: 2
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Morrison, MO
- Average cloud cover in December: 47
The months with the most cloud cover are January and February (Cloud cover 49).
The months with the least cloud cover are June and August (Cloud cover 29).
Average visibility in December
Morrison, MO
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Morrison, Missouri, USA
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