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 sea temperature 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 start of December comes with a small reduction in the average high-temperature, subtly receding from an agreeable 70.7°F (21.5°C) in November to a refreshing 63.9°F (17.7°C). Throughout the month of December, Port O'Connor witnesses an average temperature of 53.2°F (11.8°C).Humidity
The average relative humidity in December is 77%.Rainfall
In Port O'Connor, in December, during 12.7 rainfall days, 1.46" (37mm) of precipitation is typically accumulated. Throughout the year, there are 156.1 rainfall days, and 23.66" (601mm) of precipitation is accumulated.Snowfall
In Port O'Connor, snow does not fall in February through December.Ocean temperature
In December, the average ocean temperature is 65.3°F (18.5°C).Note: In water with a temperature of 65.3°F (18.5°C), most individuals do not find swimming enjoyable. As the temperature falls from 69.8°F (21°C) to 59°F (15°C), breathing control becomes more difficult.
Daylight
December has the shortest days of the year, with an average of 10h and 24min of daylight.On the first day of December, sunrise is at 7:01 am and sunset at 5:28 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 5:40 pm CST.
Sunshine
December has the least sunshine of the year, with an average of 4.7h of sunshine.UV index
December is the month with the lowest UV index, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 3 during December translates into the following directions:
Exercise prevention - Precautions against solar damage are endorsed. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
What is the average humidity in December?
How much does it rain in Port O'Connor in December?
When it does not snow?
Does it snow in Port O'Connor in December?
How cold is the water in December?
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?
How many hours of sunshine does Port O'Connor have in December?
What is the month with the lowest UV index?
What is the UV index intensity in December in Port O'Connor?
Average temperature in December
Port O'Connor, TX
- Average high temperature in December: 63.9°F
The warmest month (with the highest average high temperature) is August (90.7°F).
The month with the lowest average high temperature is January (62.2°F).
- Average low temperature in December: 53.2°F
The month with the highest average low temperature is August (79.3°F).
The coldest month (with the lowest average low temperature) is January (49.6°F).
Average pressure in December
Port O'Connor, TX
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Port O'Connor, TX
- Average wind speed in December: 10mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is September (8.5mph).
Average humidity in December
Port O'Connor, TX
- Average humidity in December: 77%
The months with the highest relative humidity are February and March (79%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Port O'Connor, TX
- Average rainfall in December: 1.46"
The wettest month (with the highest rainfall) is September (4.25").
The driest month (with the least rainfall) is February (0.87").
Average rainfall days in December
Port O'Connor, TX
- Average rainfall days in December: 12.7 days
The month with the highest number of rainy days is September (20 days).
The month with the least rainy days is January (10.8 days).
Average snowfall in December
Port O'Connor, TX
- Average snowfall in December: 0"
The month with the highest snowfall is January (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in December
Port O'Connor, 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 sea temperature in December
Port O'Connor, TX
- Average sea temperature in December: 65.2°F
The best month for swimming (with the highest average sea temperature) is August (87°F).
The coldest months (with the lowest average sea temperature) are January and February (60.8°F).
Average daylight in December /
Average sunshine in December
Port O'Connor, TX
- Average daylight in December: 10h and 2min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).
Average sunshine days in December
Port O'Connor, TX
- Average sunshine days in December: 15.2 days
The month with the most sunshine days is January (17.5 days).
The month with the least sunshine days is September (8.5 days).
Average UV index in December
Port O'Connor, 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
Port O'Connor, TX
- Average cloud cover in December: 48
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in December
Port O'Connor, 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).
Port O'Connor, Texas, USA
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