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 December begins, there is a minor decrease in the average high-temperature, softly falling from an agreeable 69.6°F (20.9°C) in November to a comfortable 61.9°F (16.6°C). Sealy's average low-temperature is measured at a chilly 47.5°F (8.6°C) during December.Humidity
In Sealy, the average relative humidity in December is 77%.Rainfall
In Sealy, in December, during 13.7 rainfall days, 2.6" (66mm) of precipitation is typically accumulated. Throughout the year, there are 176.6 rainfall days, and 32.2" (818mm) of precipitation is accumulated.Snowfall
January and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 0.1 snowfall days, it receives 0.08" (2mm) of snow. In Sealy, during the entire year, snow falls for 0.7 days and aggregates up to 0.2" (5mm) of snow.Daylight
December has the shortest days of the year, with an average of 10h and 18min of daylight.On the first day of the month, sunrise is at 7:02 am and sunset at 5:24 pm. On the last day of December, sunrise is at 7:19 am and sunset at 5:36 pm CST.
Sunshine
The month with the least sunshine is December, with an average of 4.9h of sunshine.UV index
December is the month with the lowest UV index, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.Note: During December, 3 as the daily maximum UV index converts into the following advice:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Enhance your sun protection with tightly woven, yet airy clothing. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature?
What is the average humidity in December?
How many days does it rain in December?
When does it start to snow?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
What is the month with the least sunshine in Sealy?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Sealy, TX
- Average high temperature in December: 61.9°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 (60.8°F).
- Average low temperature in December: 47.5°F
The month with the highest average low temperature is August (75.2°F).
The coldest month (with the lowest average low temperature) is January (44.6°F).
Average pressure in December
Sealy, 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
Sealy, TX
- Average wind speed in December: 7.8mph
The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is September (5.7mph).
Average humidity in December
Sealy, TX
- Average humidity in December: 77%
The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is August (71%).
Average rainfall in December
Sealy, TX
- Average rainfall in December: 2.6"
The wettest month (with the highest rainfall) is May (4.33").
The driest month (with the least rainfall) is February (1.69").
Average rainfall days in December
Sealy, TX
- Average rainfall days in December: 13.7 days
The month with the highest number of rainy days is September (18.5 days).
The month with the least rainy days is January (11.9 days).
Average snowfall in December
Sealy, TX
- Average snowfall in December: 0.08"
The month with the highest snowfall is January (0.12").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Sealy, TX
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is January (0.4 days).
The months with the least snowfall days are March, April, May, June, July, August, October and November (0 days).
Average daylight in December /
Average sunshine in December
Sealy, 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 0min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in December
Sealy, TX
- Average sunshine days in December: 15 days
The month with the most sunshine days is January (17.3 days).
The month with the least sunshine days is June (9.3 days).
Average UV index in December
Sealy, TX
- Average UV index in December: 3
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 3).
Average cloud cover in December
Sealy, TX
- Average cloud cover in December: 48
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Sealy, TX
- Average visibility in December: 6mi
The months with the highest visibility are January, February, August, September, October, November and December (6mi).
The months with the lowest visibility are March, April, May, June and July (5mi).
Sealy, Texas, USA
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