December weather forecastO'Brien, TX
December
Weather in December
December, the first month of the winter in O'Brien, is also a moderate month, with an average temperature fluctuating between 55.4°F (13°C) and 38.3°F (3.5°C).Temperature
O'Brien's coldest season falls during January and December, averaging a high-temperature of 55.4°F (13°C).Humidity
The months with the highest humidity are May, September, November and December, with an average relative humidity of 56%.Rainfall
In O'Brien, in December, it is raining for 4.4 days, with typically 0.71" (18mm) of accumulated precipitation. In O'Brien, during the entire year, the rain falls for 92.6 days and collects up to 17.99" (457mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In O'Brien, in December, snow falls for 1.4 days, with typically accumulated 1.22" (31mm) of snow. Throughout the year, there are 6 snowfall days, and 3.94" (100mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 10h and 0min of daylight.On the first day of the month, sunrise is at 7:25 am and sunset at 5:31 pm. On the last day of December, in O'Brien, sunrise is at 7:43 am and sunset at 5:42 pm CST.
Sunshine
December has the least sunshine of the year in O'Brien, with an average of 6.4h of sunshine.UV index
With an average maximum UV index of 2, December is the month with the lowest UV index in O'Brien. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.Note: In December, the maximum UV index of 2 suggests these recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
O'Brien, TX
- Average high temperature in December: 55.4°F
The warmest month (with the highest average high temperature) is August (97.3°F).
The months with the lowest average high temperature are January and December (55.4°F).
- Average low temperature in December: 38.3°F
The month with the highest average low temperature is July (77°F).
The coldest month (with the lowest average low temperature) is January (36.5°F).
Average pressure in December
O'Brien, TX
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in December
O'Brien, TX
- Average wind speed in December: 10.3mph
The windiest month (with the highest average wind speed) is April (13mph).
The calmest month (with the lowest average wind speed) is September (9.4mph).
Average humidity in December
O'Brien, TX
- Average humidity in December: 56%
The months with the highest relative humidity are May, September, November and December (56%).
The month with the lowest relative humidity is August (45%).
Average rainfall in December
O'Brien, TX
- Average rainfall in December: 0.71"
The wettest month (with the highest rainfall) is May (2.72").
The driest month (with the least rainfall) is February (0.67").
Average rainfall days in December
O'Brien, TX
- Average rainfall days in December: 4.4 days
The month with the highest number of rainy days is September (11.7 days).
The month with the least rainy days is January (3.7 days).
Average snowfall in December
O'Brien, TX
- Average snowfall in December: 1.22"
The month with the highest snowfall is February (1.42").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
O'Brien, TX
- Average snowfall days in December: 1.4 days
The month with the highest number of snowfall days is February (2.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
O'Brien, 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: 6h and 24min
The month with the most sunshine is June (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days in December
O'Brien, TX
- Average sunshine days in December: 24.2 days
The month with the most sunshine days is January (26.3 days).
The month with the least sunshine days is September (16.3 days).
Average UV index in December
O'Brien, TX
- Average UV index in December: 2
The month with the highest UV index is July (UV index 8).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
O'Brien, TX
- Average cloud cover in December: 26
The month with the most cloud cover is March (Cloud cover 27).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in December
O'Brien, 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).
