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's onset brings a negligible change in high-temperatures, falling from a pleasant 70.3°F (21.3°C) in November to an enjoyable 63°F (17.2°C). Houston observes an average nighttime temperature of 49.6°F (9.8°C) during December.Humidity
The average relative humidity in December is 76%.Rainfall
In Houston, in December, during 13.9 rainfall days, 2.52" (64mm) of precipitation is typically accumulated. Throughout the year, there are 180.5 rainfall days, and 35.35" (898mm) of precipitation is accumulated.Snowfall
Months with snowfall are January and December. The month with the most snowfall in Houston is December, when snow falls for 0.1 days and typically aggregates up to 0.08" (2mm) of snow.Daylight
With an average of 10h and 18min of daylight, December has the shortest days of the year in Houston, Texas.On the first day of December, sunrise is at 6:59 am and sunset at 5:21 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 5:32 pm CST.
Sunshine
With an average of 4.8h of sunshine, December has the least sunshine of the year in Houston.UV index
The month with the lowest UV index in Houston is December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: A typical high UV index of 3 in December suggests the following recommendations:
Be vigilant - Preventing sunburn is recommended. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Frequently asked questions
What is the temperature in December in Houston?
What is the average humidity in December in Houston?
How much does it rain in Houston in December?
What is the snowiest month in Houston?
When does it start to snow in Houston?
What is the month with the shortest days in Houston?
How many hours of daylight does Houston have in December?
When is the sunrise / sunset in December in Houston?
What is the month with the least sunshine in Houston?
How long on average sun shines in December in Houston?
When is the lowest UV index in Houston?
How high is the UV index in December in Houston?
Average temperature in December
Houston, TX
- Average high temperature in December: 63°F
The warmest month (with the highest average high temperature) is August (94.3°F).
The month with the lowest average high temperature is January (61.3°F).
- Average low temperature in December: 49.6°F
The month with the highest average low temperature is August (77.5°F).
The coldest month (with the lowest average low temperature) is January (46°F).
Average pressure in December
Houston, TX
- Average pressure in December: 30.11"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
Houston, TX
- Average wind speed in December: 7.6mph
The windiest month (with the highest average wind speed) is April (8.6mph).
The calmest month (with the lowest average wind speed) is September (5.9mph).
Average humidity in December
Houston, TX
- Average humidity in December: 76%
The month with the highest relative humidity is February (78%).
The months with the lowest relative humidity are August and October (70%).
Average rainfall in December
Houston, TX
- Average rainfall in December: 2.52"
The wettest month (with the highest rainfall) is September (4.49").
The driest month (with the least rainfall) is February (1.77").
Average rainfall days in December
Houston, TX
- Average rainfall days in December: 13.9 days
The month with the highest number of rainy days is September (19.5 days).
The month with the least rainy days is January (11.8 days).
Average snowfall in December
Houston, TX
- Average snowfall in December: 0.08"
The month with the highest snowfall is December (0.08").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Houston, TX
- Average snowfall days in December: 0.1 days
The months with the highest number of snowfall days are January and December (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Houston, TX
- Average daylight in December: 10h and 2min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in December
Houston, TX
- Average sunshine days in December: 14.6 days
The month with the most sunshine days is January (16.3 days).
The month with the least sunshine days is September (7.9 days).
Average UV index in December
Houston, TX
- Average UV index in December: 3
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Houston, TX
- Average cloud cover in December: 49
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in December
Houston, 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).
Houston, Texas, USA
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