December weather forecast
San Augustine, TX

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Weather in December

December, the first month of the winter in San Augustine, is also a moderate month, with temperature in the range of an average low of 43°F (6.1°C) and an average high of 57.9°F (14.4°C).

Temperature

San Augustine in December undergoes a slight reduction in the average high-temperature, shifting from November's enjoyable 65.7°F (18.7°C) to a moderate 57.9°F (14.4°C). San Augustine's temperature drops to an average low of 43°F (6.1°C) during the nights of December.

Humidity

The average relative humidity in December is 81%.

Rainfall

In San Augustine, during December, the rain falls for 9.6 days and regularly aggregates up to 1.26" (32mm) of precipitation. Throughout the year, there are 132.7 rainfall days, and 18.27" (464mm) of precipitation is accumulated.

Snowfall

January through March and December are months with snowfall. December is the month with the most snowfall. Snow falls for 0.3 days and accumulates 0.12" (3mm) of snow.

Daylight

With an average of 10h and 6min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 6:58 am and sunset at 5:12 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 5:23 pm CST.

Sunshine

With an average of 4.7h of sunshine, December has the least sunshine of the year.

UV index

The months with the lowest UV index are January and December, 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 radiation for the ordinary person.
Note: An average maximum UV index of 3 in December leads to these recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. When the Sun is at its strongest around midday, find shade and limit exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in December?

The high-temperature, in December, in San Augustine, records 57.9°F (14.4°C), while the low-temperature is 43°F (6.1°C). In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, is estimated at 104°F (40°C).

What is the average humidity in December in San Augustine?

In San Augustine, the average relative humidity in December is 81%.

How much does it rain in December?

In San Augustine, in December, during 9.6 rainfall days, 1.26" (32mm) of precipitation is typically accumulated.

When does it snow the most?

December is the month with the most snowfall in San Augustine. Snow falls for 0.3 days and accumulates 0.12" (3mm) of snow.

When does it start snowing?

December is the first month it typically snows. Throughout December, in the average 0.3 snowfall days, it receives 0.12" (3mm) of snow.

What is the month with the shortest days in San Augustine?

With an average of 10h and 6min of daylight, December has the shortest days of the year.

What is the average length of the day in December?

The average day length in December is 10h and 8min.

When are sunrise and sunset in December in San Augustine?

On the first day of December, sunrise is at 6:58 am and sunset at 5:12 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 5:23 pm CST.

What is the month with the least sunshine?

With an average of 4.7h of sunshine, December has the least sunshine of the year.

How long on average sun shines in December?

In December, the average sunshine duration is 4.7h.

What is the month with the lowest UV index?

January and December, with an average maximum UV index of 3, are months with the lowest UV index.

What is the UV index reading in December in San Augustine?

In San Augustine, the average daily maximum UV index in December is 3. A UV Index reading of 3 to 5 represents a medium health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
San Augustine, TX

Average temperature in December - San Augustine, TX
  • Average high temperature in December: 57.9°F

The warmest month (with the highest average high temperature) is August (94.8°F).
The month with the lowest average high temperature is January (55.9°F).

  • Average low temperature in December: 43°F

The months with the highest average low temperature are July and August (73.2°F).
The coldest month (with the lowest average low temperature) is January (39.7°F).

Average pressure in December
San Augustine, TX

Average pressure in December - San Augustine, TX
  • Average pressure in December: 30.12"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
San Augustine, TX

Average wind speed in December - San Augustine, TX
  • Average wind speed in December: 6mph

The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest months (with the lowest average wind speed) are July, August and September (4.8mph).

Average humidity in December
San Augustine, TX

Average humidity in December - San Augustine, TX
  • Average humidity in December: 81%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is August (71%).

Average rainfall in December
San Augustine, TX

Average rainfall in December - San Augustine, TX
  • Average rainfall in December: 1.26"

The wettest month (with the highest rainfall) is May (2.4").
The driest month (with the least rainfall) is November (0.87").

Average rainfall days in December
San Augustine, TX

Average rainfall days in December - San Augustine, TX
  • Average rainfall days in December: 9.6 days

The month with the highest number of rainy days is August (14.5 days).
The month with the least rainy days is November (7.5 days).

Average snowfall in December
San Augustine, TX

Average snowfall in December - San Augustine, TX
  • Average snowfall in December: 0.12"

The month with the highest snowfall is December (0.12").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in December
San Augustine, TX

Average snowfall days in December - San Augustine, TX
  • Average snowfall days in December: 0.3 days

The month with the highest number of snowfall days is January (0.7 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
San Augustine, TX

Average daylight in December / Average sunshine in December - San Augustine, TX
  • Average daylight in December: 10h and 1min

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in December: 4h and 4min

The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).

Average sunshine days in December
San Augustine, TX

Average sunshine days in December - San Augustine, TX
  • Average sunshine days in December: 18.6 days

The month with the most sunshine days is October (20.3 days).
The month with the least sunshine days is August (14 days).

Average UV index in December
San Augustine, TX

Average UV index in December - San Augustine, TX
  • Average UV index in December: 3

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).

Average cloud cover in December
San Augustine, TX

Average cloud cover in December - San Augustine, TX
  • Average cloud cover in December: 51

The month with the most cloud cover is February (Cloud cover 54).
The months with the least cloud cover are August and October (Cloud cover 33).

Average visibility in December
San Augustine, TX

Average visibility in December - San Augustine, TX
  • Average visibility in December: 5mi

The month with the highest visibility is October (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, November and December (5mi).

San Augustine, Texas, USA

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