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 transition into December involves a decrease in the average high-temperature, falling from a comfortable 63.1°F (17.3°C) in November to a fresh 52.9°F (11.6°C). In the month of December, Collinsville records a consistent average low-temperature of 39°F (3.9°C).Humidity
The average relative humidity in December is 70%.Rainfall
February and December are months with the least rain in Collinsville when the rain falls for 4 days and typically aggregates up to 0.31" (8mm) of rain.Snowfall
In Collinsville, snow does not fall in January, March through December.Daylight
The month with the shortest days in Collinsville, Texas, is December, with an average of 10h and 0min of daylight.On the first day of the month, sunrise is at 7:14 am and sunset at 5:19 pm. On the last day of December, sunrise is at 7:31 am and sunset at 5:30 pm CST.
Sunshine
The month with the least sunshine in Collinsville is December, with an average of 5.7h of sunshine.UV index
December is the month with the lowest UV index in Collinsville, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 2 during December translates into the following guidance:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures in Collinsville?
What is the average humidity in December in Collinsville?
What is the driest month in Collinsville?
How many days does it rain in December in Collinsville?
When it does not snow in Collinsville?
What is the month with the shortest days in Collinsville?
How many hours of daylight does Collinsville have in December?
What time are sunrise and sunset in December in Collinsville?
What is the month with the least sunshine in Collinsville?
How long on average sun shines in December in Collinsville?
When is the lowest UV index in Collinsville?
What is the UV index intensity in December in Collinsville?
Average temperature in December
Collinsville, TX
- Average high temperature in December: 52.9°F
The warmest month (with the highest average high temperature) is August (94.6°F).
The month with the lowest average high temperature is January (52.2°F).
- Average low temperature in December: 39°F
The months with the highest average low temperature are July and August (74.3°F).
The coldest month (with the lowest average low temperature) is January (36.3°F).
Average pressure in December
Collinsville, TX
- 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 (29.9"Hg).
Average wind speed in December
Collinsville, TX
- Average wind speed in December: 8.8mph
The windiest month (with the highest average wind speed) is March (10.4mph).
The calmest month (with the lowest average wind speed) is September (7mph).
Average humidity in December
Collinsville, TX
- Average humidity in December: 70%
The month with the highest relative humidity is May (76%).
The month with the lowest relative humidity is August (59%).
Average rainfall in December
Collinsville, TX
- Average rainfall in December: 0.31"
The wettest month (with the highest rainfall) is October (0.98").
The driest months (with the least rainfall) are February and December (0.31").
Average rainfall days in December
Collinsville, TX
- Average rainfall days in December: 4 days
The month with the highest number of rainy days is May (9 days).
The month with the least rainy days is January (3 days).
Average snowfall in December
Collinsville, TX
- Average snowfall in December: 0"
The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in December
Collinsville, TX
- Average snowfall days in December: 0.2 days
The month with the highest number of snowfall days is February (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Collinsville, TX
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in December: 5h and 4min
The month with the most sunshine is August (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in December
Collinsville, TX
- Average sunshine days in December: 26.3 days
The month with the most sunshine days is January (27.1 days).
The months with the least sunshine days are May and September (19.4 days).
Average UV index in December
Collinsville, TX
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Collinsville, TX
- Average cloud cover in December: 36
The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in December
Collinsville, TX
- 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).
Collinsville, Texas, USA
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