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
As November transitions into December, Garrison sees a drop in the average high-temperature, transitioning from a mild 56.1°F (13.4°C) to a chilly 46.6°F (8.1°C). In the month of December, Garrison experiences an average low-temperature of 31.5°F (-0.3°C).Humidity
The average relative humidity in December is 75%.Rainfall
In December, the rain falls for 7.4 days. Throughout December, 1.81" (46mm) of precipitation is accumulated. Throughout the year, there are 142.8 rainfall days, and 30.47" (774mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall in Garrison. In December, it is snowing for 1.5 days. Throughout December, 0.31" (8mm) of snow is accumulated. Throughout the year, there are 9.5 snowfall days, and 3.62" (92mm) of snow is accumulated.Daylight
With an average of 9h and 42min of daylight, December has the shortest days of the year in Garrison.On the first day of the month, sunrise is at 7:06 am and sunset at 4:55 pm. On the last day of December, sunrise is at 7:24 am and sunset at 5:06 pm CST.
Sunshine
In Garrison, the average sunshine in December is 5.6h.UV index
The months with the lowest UV index in Garrison are January and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the average person.Note: A typical high UV index of 2 in December suggests the following recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Garrison in December?
What is the average humidity in December in Garrison?
How many days does it rain in December in Garrison?
How many days does it snow in December in Garrison?
What is the month with the shortest days in Garrison?
What is the average length of the day in December in Garrison?
When are sunrise and sunset in December in Garrison?
How many hours of sunshine does Garrison have in December?
What are the months with the lowest UV index in Garrison?
How high is the UV index in December in Garrison?
Average temperature in December
Garrison, MO
- Average high temperature in December: 46.6°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (44.1°F).
- Average low temperature in December: 31.5°F
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (27.9°F).
Average pressure in December
Garrison, MO
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Garrison, MO
- Average wind speed in December: 7.1mph
The windiest months (with the highest average wind speed) are January, February, March and April (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.9mph).
Average humidity in December
Garrison, MO
- Average humidity in December: 75%
The months with the highest relative humidity are March and May (78%).
The months with the lowest relative humidity are January, July, August and October (73%).
Average rainfall in December
Garrison, MO
- Average rainfall in December: 1.81"
The wettest month (with the highest rainfall) is May (4.41").
The driest month (with the least rainfall) is February (1.42").
Average rainfall days in December
Garrison, MO
- Average rainfall days in December: 7.4 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (7.2 days).
Average snowfall in December
Garrison, MO
- Average snowfall in December: 0.31"
The month with the highest snowfall is February (1.46").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Garrison, MO
- Average snowfall days in December: 1.5 days
The month with the highest number of snowfall days is February (3.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Garrison, MO
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 5h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The months with the least sunshine are January and February (Average sunshine: 5h and 24min).
Average sunshine days in December
Garrison, MO
- Average sunshine days in December: 21.5 days
The month with the most sunshine days is December (21.5 days).
The month with the least sunshine days is July (12.2 days).
Average UV index in December
Garrison, MO
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in December
Garrison, 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 28).
Average visibility in December
Garrison, 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).
Garrison, Missouri, USA
Weather forecast for your location
2. Allow the app to use your location