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 to December brings a decrease in the average high-temperature, falling from a chilly 48.9°F (9.4°C) in November to a cold 34.7°F (1.5°C). Garrison records an average nighttime low-temperature of 21.9°F (-5.6°C) throughout December.Humidity
In December, the average relative humidity is 76%.Rainfall
In Garrison, in December, during 3.4 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. In Garrison, during the entire year, the rain falls for 112.4 days and collects up to 18.62" (473mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Garrison, in December, snow falls for 5.3 days, with typically accumulated 1.42" (36mm) of snow. In Garrison, during the entire year, snow falls for 27.8 days and aggregates up to 11.14" (283mm) of snow.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:35 am and sunset at 5:00 pm. On the last day of December, sunrise is at 7:53 am and sunset at 5:10 pm CST.
Sunshine
The average sunshine in December is 5.3h.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 reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 2 during December leads to these instructions:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Keep in mind! Snow's reflective quality can nearly 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?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December in Garrison?
When is the sunrise / sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
How high is the UV index in December in Garrison?
Average temperature in December
Garrison, NE
- Average high temperature in December: 34.7°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in December: 21.9°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in December
Garrison, NE
- 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 (29.85"Hg).
Average wind speed in December
Garrison, NE
- Average wind speed in December: 10.4mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).
Average humidity in December
Garrison, NE
- Average humidity in December: 76%
The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is October (64%).
Average rainfall in December
Garrison, NE
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in December
Garrison, NE
- Average rainfall days in December: 3.4 days
The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is February (2.5 days).
Average snowfall in December
Garrison, NE
- Average snowfall in December: 1.42"
The month with the highest snowfall is January (2.68").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Garrison, NE
- Average snowfall days in December: 5.3 days
The month with the highest number of snowfall days is February (7.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Garrison, NE
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 5h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in December
Garrison, NE
- Average sunshine days in December: 22.5 days
The month with the most sunshine days is November (23.2 days).
The month with the least sunshine days is June (12.6 days).
Average UV index in December
Garrison, NE
- 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
Garrison, NE
- Average cloud cover in December: 41
The month with the most cloud cover is January (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in December
Garrison, NE
- 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).
Garrison, Nebraska, USA
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