December weather forecast and climate
Mason, TX

Weather in December

The first month of the winter, December, is also a moderate month in Mason, Texas, with temperature in the range of an average low of 41.9°F (5.5°C) and an average high of 59.7°F (15.4°C).

Temperature

In Mason, the average high-temperature in December slightly decreases, from an enjoyable 67.3°F (19.6°C) in November, to a mild 59.7°F (15.4°C). In December, the average low-temperature is 41.9°F (5.5°C).

Humidity

The average relative humidity in Mason, Texas, is 63%.

Rainfall

In Mason, Texas,, it is raining for 7 days, with typically 0.87" (22mm) of accumulated precipitation. Throughout the year, there are 111.3 rainfall days, and 17.13" (435mm) of precipitation is accumulated.

Snowfall

January, February and December are months with snowfall in Mason, Texas. December is the first month it typically snows. Throughout December, in the average 0.4 snowfall days, it receives 0.2" (5mm) of snow. In Mason, during the entire year, snow falls for 2.2 days, and aggregates up to 0.59" (15mm) of snow.

Daylight

December has the shortest days of the year in Mason, with an average of 10.2h of daylight.

Sunshine

December has the least sunshine of the year, with an average of 6h of sunshine.

UV index

With an average maximum UV index of 3, December is the month with the lowest UV index. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to the UV radiation for the ordinary person.
Note: The average daily UV index of 3 transform into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the average humidity in December in Mason?

The average relative humidity in December in Mason is 63%.

How many days does it rain in December in Mason?

In Mason, Texas, in December, during 7 rainfall days, 0.87" (22mm) of precipitation is typically accumulated.

When does it start snowing in Mason?

December is the first month it typically snows in Mason, Texas. Throughout December, in the average 0.4 snowfall days, it receives 0.2" (5mm) of snow.

What is the month with the shortest days in Mason?

December has the shortest days of the year, with an average of 10.2h of daylight.

How many hours of daylight does Mason have in December?

In December, the average length of the day is 10.2h.

What is the month with the least sunshine in Mason?

The month with the least sunshine is December, with an average of 6h of sunshine.

How many hours of sunshine does Mason have in December?

The average sunshine in December in Mason, Texas, is 6h.

When is the lowest UV index in Mason?

With an average maximum UV index of 3, December is the month with the lowest UV index in Mason, Texas.

What is the UV index intensity in December in Mason?

In December, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to the UV radiation.

Average temperature in December
Mason, TX

Average temperature in December - Mason, TX
  • Average high temperature in December: 59.7°F

The warmest months (with the highest average high temperature) are July and August (94.5°F).
The month with the lowest average high temperature is January (59.4°F).

  • Average low temperature in December: 41.9°F

The month with the highest average low temperature is August (73.6°F).
The coldest month (with the lowest average low temperature) is January (40.3°F).

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Average pressure in December
Mason, TX

Average pressure in December - Mason, TX
  • Average pressure in December: 30.11"

The month with the highest atmospheric pressure is January (30.15").
Months with the lowest atmospheric pressure are May and June (29.89").

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Average wind speed in December
Mason, TX

Average wind speed in December - Mason, TX
  • Average wind speed in December: 9.5mph

The windiest month (with the highest average wind speed) is April (12.1mph).
The calmest month (with the lowest average wind speed) is September (8.3mph).

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Average humidity in December
Mason, TX

Average humidity in December - Mason, TX
  • Average humidity in December: 63%

The month with the highest relative humidity is May (66%).
The month with the lowest relative humidity is August (53%).

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Average rainfall in December
Mason, TX

Average rainfall in December - Mason, TX
  • Average rainfall in December: 0.87"

The wettest month (with the highest rainfall) is May (2.52").
The driest month (with the least rainfall) is November (0.63").

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Average rainfall days in December
Mason, TX

Average rainfall days in December - Mason, TX
  • Average rainfall days in December: 7 days

The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is January (5.4 days).

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Average snowfall in December
Mason, TX

Average snowfall in December - Mason, TX
  • Average snowfall in December: 0.2"

The month with the highest snowfall is February (0.24").
Months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in December
Mason, TX

Average snowfall days in December - Mason, TX
  • Average snowfall days in December: 0.4 days

The month with the highest number of snowfall days is February (0.9 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
Mason, TX

Average daylight in December / Average sunshine in December - Mason, TX
  • Average daylight in December: 10.2h

The month with the longest days is June (Average daylight: 14.1h).
The month with the shortest days is December (Average daylight: 10.2h).

  • Average sunshine in December: 6h

The month with the most sunshine is July (Average sunshine: 11.1h).
The month with the least sunshine is December (Average sunshine: 6h).

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Average sunshine days in December
Mason, TX

Average sunshine days in December - Mason, TX
  • Average sunshine days in December: 22 days

The month with the most sunshine days is January (24.6 days).
The month with the least sunshine days is May (14.3 days).

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Average UV index in December
Mason, TX

Average UV index in December - Mason, TX
  • Average UV index in December: 3

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).

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Average cloud cover in December
Mason, TX

Average cloud cover in December - Mason, TX
  • Average cloud cover in December: 31

Months with the most cloud cover are March and May (Cloud cover 35).
The month with the least cloud cover is August (Cloud cover 19).

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Average visibility in December
Mason, TX

Average visibility in December - Mason, TX
  • Average visibility in December: 6mi

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

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