December weather forecast
San Ygnacio, TX

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Weather in December

December, the first month of the winter in San Ygnacio, is also an agreeable month, with temperature in the range of an average high of 69.6°F (20.9°C) and an average low of 53.2°F (11.8°C).

Temperature

December signals a slight drop in average high-temperature, sliding from November's moderately hot 76.8°F (24.9°C) to an agreeable 69.6°F (20.9°C). San Ygnacio usually reports an average low-temperature of 53.2°F (11.8°C) during the month of December.

Humidity

With an average relative humidity of 62%, December is the most humid month.

Rainfall

In San Ygnacio, in December, it is raining for 7.1 days, with typically 0.67" (17mm) of accumulated precipitation. In San Ygnacio, during the entire year, the rain falls for 100.8 days and collects up to 12.56" (319mm) of precipitation.

Snowfall

December is the only month when snow falls. The month with the most snowfall is December, when snow falls for 0.1 days and typically aggregates up to 0.04" (1mm) of snow.

Daylight

With an average of 10h and 30min of daylight, December has the shortest days of the year in San Ygnacio, Texas.
On the first day of December, sunrise is at 7:10 am and sunset at 5:43 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 5:55 pm CST.

Sunshine

With an average of 5.9h of sunshine, December has the least sunshine of the year in San Ygnacio, Texas.

UV index

The months with the lowest UV index in San Ygnacio, Texas, are January and December, with an average maximum UV index of 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.
Note: The daily high UV index of 4 in December translates into this advice:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
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Frequently asked questions

What is the average December temperature in San Ygnacio?

The high-temperature, in December, in San Ygnacio, is 69.6°F (20.9°C), while the low-temperature averages to 53.2°F (11.8°C). The average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, in October is calculated to be 93.2°F (34°C).

What is the most humid month in San Ygnacio?

The most humid month in San Ygnacio is December, with an average relative humidity of 62%.

What is the average humidity in December in San Ygnacio?

In December, the average relative humidity in San Ygnacio, Texas, is 62%.

How many days does it rain in December in San Ygnacio?

In San Ygnacio, Texas, in December, during 7.1 rainfall days, 0.67" (17mm) of precipitation is typically accumulated.

What is the snowiest month in San Ygnacio?

The month with the most snowfall in San Ygnacio, Texas, is December, when snow falls for 0.1 days and typically aggregates up to 0.04" (1mm) of snow.

When does it start to snow in San Ygnacio?

December is the first month it typically snows. Throughout December, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow.

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

December has the shortest days of the year in San Ygnacio, with an average of 10h and 30min of daylight.

What is the average length of the day in December in San Ygnacio?

In San Ygnacio, Texas, the average day length in December is 10h and 28min.

What time are sunrise and sunset in December in San Ygnacio?

In December, on the first day of the month, sunrise is at 7:10 am and sunset at 5:43 pm. On the last day of the month, in San Ygnacio, Texas, sunrise is at 7:26 am and sunset at 5:55 pm CST.

What is the month with the least sunshine in San Ygnacio?

December has the least sunshine of the year, with an average of 5.9h of sunshine.

How many hours of sunshine does San Ygnacio have in December?

The average sunshine duration in December in San Ygnacio is 5.9h.

When is the lowest UV index in San Ygnacio?

The months with the lowest UV index in San Ygnacio are January and December, with an average maximum UV index of 4.

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

In San Ygnacio, the average daily maximum UV index in December is 4. A UV Index of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.
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 Ygnacio, TX

Average temperature in December - San Ygnacio, TX
  • Average high temperature in December: 69.6°F

The warmest month (with the highest average high temperature) is August (100.6°F).
The month with the lowest average high temperature is January (68.5°F).

  • Average low temperature in December: 53.2°F

The month with the highest average low temperature is August (80.4°F).
The coldest month (with the lowest average low temperature) is January (51.8°F).

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Average pressure in December
San Ygnacio, TX

Average pressure in December - San Ygnacio, TX
  • Average pressure in December: 30.09"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are May and June (29.86"Hg).

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Average wind speed in December
San Ygnacio, TX

Average wind speed in December - San Ygnacio, TX
  • Average wind speed in December: 8.8mph

The windiest month (with the highest average wind speed) is July (14.5mph).
The calmest month (with the lowest average wind speed) is December (8.8mph).

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Average humidity in December
San Ygnacio, TX

Average humidity in December - San Ygnacio, TX
  • Average humidity in December: 62%

The month with the highest relative humidity is December (62%).
The month with the lowest relative humidity is August (50%).

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Average rainfall in December
San Ygnacio, TX

Average rainfall in December - San Ygnacio, TX
  • Average rainfall in December: 0.67"

The wettest month (with the highest rainfall) is September (2.83").
The driest month (with the least rainfall) is February (0.51").

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Average rainfall days in December
San Ygnacio, TX

Average rainfall days in December - San Ygnacio, TX
  • Average rainfall days in December: 7.1 days

The month with the highest number of rainy days is September (15.8 days).
The month with the least rainy days is August (6.4 days).

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Average snowfall in December
San Ygnacio, TX

Average snowfall in December - San Ygnacio, TX
  • Average snowfall in December: 0.04"

The month with the highest snowfall is December (0.04").
The months with the least snowfall are January, February, March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in December
San Ygnacio, TX

Average snowfall days in December - San Ygnacio, 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).

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Average daylight in December /
Average sunshine in December
San Ygnacio, TX

Average daylight in December / Average sunshine in December - San Ygnacio, TX
  • Average daylight in December: 10h and 3min

The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).

  • Average sunshine in December: 5h and 5min

The month with the most sunshine is June (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).

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Average sunshine days in December
San Ygnacio, TX

Average sunshine days in December - San Ygnacio, TX
  • Average sunshine days in December: 21.6 days

The month with the most sunshine days is August (23.2 days).
The month with the least sunshine days is September (12.8 days).

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Average UV index in December
San Ygnacio, TX

Average UV index in December - San Ygnacio, TX
  • Average UV index in December: 4

The months with the highest UV index are June, July and August (UV index 8).
The months with the lowest UV index are January and December (UV index 4).

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Average cloud cover in December
San Ygnacio, TX

Average cloud cover in December - San Ygnacio, TX
  • Average cloud cover in December: 34

The month with the most cloud cover is December (Cloud cover 34).
The month with the least cloud cover is August (Cloud cover 16).

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Average visibility in December
San Ygnacio, TX

Average visibility in December - San Ygnacio, 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).

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San Ygnacio, Texas, USA

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