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 brings a minor shift in the average high-temperature, adjusting from an enjoyable 65.3°F (18.5°C) in November to a moderate 57.4°F (14.1°C). Garrison reports a consistent average low-temperature of 42.8°F (6°C) throughout December nights.Humidity
The average relative humidity in December is 81%.Rainfall
In Garrison, during December, the rain falls for 12.6 days and regularly aggregates up to 3.03" (77mm) of precipitation. In Garrison, during the entire year, the rain falls for 160.4 days and collects up to 35.83" (910mm) of precipitation.Snowfall
Months with snowfall are January through March, September and December. December is the first month it typically snows. Throughout December, in the average 0.6 snowfall days, it receives 0.12" (3mm) of snow. In Garrison, during the entire year, snow falls for 2.6 days and aggregates up to 0.79" (20mm) of snow.Daylight
December has the shortest days of the year in Garrison, with an average of 10h and 6min of daylight.On the first day of December, sunrise is at 7:00 am and sunset at 5:13 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 5:24 pm CST.
Sunshine
December has the least sunshine of the year, with an average of 5h of sunshine.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 3 during December translates into these guidelines:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Frequently asked questions
What is the average December temperature in Garrison?
What is the average humidity in December in Garrison?
How much does it rain in Garrison in December?
When does it start to snow in Garrison?
What is the month with the shortest days in Garrison?
What is the average length of the day in December in Garrison?
What time are sunrise and sunset in December in Garrison?
What is the month with the least sunshine in Garrison?
How many hours of sunshine does Garrison have in December?
What is the month with the lowest UV index in Garrison?
What is the UV index intensity in December in Garrison?
Average temperature in December
Garrison, TX
- Average high temperature in December: 57.4°F
The warmest month (with the highest average high temperature) is August (95°F).
The month with the lowest average high temperature is January (55.8°F).
- Average low temperature in December: 42.8°F
The month with the highest average low temperature is August (73.2°F).
The coldest month (with the lowest average low temperature) is January (39.2°F).
Average pressure in December
Garrison, TX
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Garrison, TX
- Average wind speed in December: 6mph
The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest months (with the lowest average wind speed) are July, August and September (4.8mph).
Average humidity in December
Garrison, TX
- Average humidity in December: 81%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is August (70%).
Average rainfall in December
Garrison, TX
- Average rainfall in December: 3.03"
The wettest month (with the highest rainfall) is May (3.66").
The driest month (with the least rainfall) is November (2.44").
Average rainfall days in December
Garrison, TX
- Average rainfall days in December: 12.6 days
The month with the highest number of rainy days is March (15.5 days).
The month with the least rainy days is November (10.2 days).
Average snowfall in December
Garrison, TX
- Average snowfall in December: 0.12"
The month with the highest snowfall is January (0.39").
The months with the least snowfall are April, May, June, July, August, October and November (0").
Average snowfall days in December
Garrison, TX
- Average snowfall days in December: 0.6 days
The month with the highest number of snowfall days is January (0.9 days).
The months with the least snowfall days are April, May, June, July, August and October (0 days).
Average daylight in December /
Average sunshine in December
Garrison, TX
- Average daylight in December: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in December
Garrison, TX
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is October (18.7 days).
The month with the least sunshine days is February (12.3 days).
Average UV index in December
Garrison, TX
- Average UV index in December: 3
The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in December
Garrison, TX
- Average cloud cover in December: 49
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Garrison, TX
- Average visibility in December: 5mi
The months with the highest visibility are June, August, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, July, September and December (5mi).
Garrison, Texas, USA
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