December weather forecast
Mission, TX

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Weather in December

December, the first month of the winter in Mission, is also an agreeable month, with an average temperature fluctuating between 71.2°F (21.8°C) and 55.9°F (13.3°C).

Temperature

Mission's weather subtly changes with the onset of December, barely falling from a warm 77.4°F (25.2°C) in November to an agreeable 71.2°F (21.8°C). December witnesses an average low-temperature hovering around a moderate 55.9°F (13.3°C).

Humidity

The months with the highest humidity are May and December, with an average relative humidity of 67%.

Rainfall

The months with the least rainfall are February and December Rain falls for 3.4 days and accumulates 0.12" (3mm) of rain.

Snowfall

March through December are months without snowfall.

Daylight

The month with the shortest days is December, with an average of 10h and 30min of daylight.
On the first day of December in Mission, Texas, sunrise is at 7:04 am and sunset at 5:40 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 5:52 pm CST.

Sunshine

December has the least sunshine of the year in Mission, with an average of 5.6h of sunshine.

UV index

December is the month with the lowest UV index in Mission, with an average maximum UV index of 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 4 in December translates into these instructions:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
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Frequently asked questions

What is the average December temperature in Mission?

The high-temperature during December is 71.2°F (21.8°C) and the low-temperature is 55.9°F (13.3°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in October is calculated to be 95°F (35°C).

What are the most humid months in Mission?

May and December, with an average relative humidity of 67%, are most humid months in Mission.

What is the average humidity in December in Mission?

The average relative humidity in December is 67%.

What is the driest month in Mission?

The months with the least rainfall in Mission are February and December Rain falls for 3.4 days and accumulates 0.12" (3mm) of rain.

How many days does it rain in December in Mission?

In Mission, in December, during 3.4 rainfall days, 0.12" (3mm) of precipitation is typically accumulated.

When it does not snow in Mission?

In Mission, snow does not fall in March through December.

Does it snow in Mission in December?

In Mission, Texas, in December, it doesn't snow. In January, it regularly snows.

What is the month with the shortest days in Mission?

The month with the shortest days in Mission is December, with an average of 10h and 30min of daylight.

What is the average length of the day in December in Mission?

The average day length in December in Mission is 10h and 32min.

When is the sunrise / sunset in December in Mission?

On the first day of December in Mission, Texas, sunrise is at 7:04 am and sunset at 5:40 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 5:52 pm CST.

What is the month with the least sunshine in Mission?

December has the least sunshine of the year in Mission, with an average of 5.6h of sunshine.

How long on average sun shines in December in Mission?

The average sunshine duration in December in Mission is 5.6h.

When is the lowest UV index in Mission?

The month with the lowest UV index in Mission, Texas, is December, with an average maximum UV index of 4.

What is the UV index reading in December in Mission?

In December, the average daily maximum UV index in Mission, Texas, is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Mission, TX

Average temperature in December - Mission, TX
  • Average high temperature in December: 71.2°F

The warmest month (with the highest average high temperature) is August (99°F).
The month with the lowest average high temperature is January (69.4°F).

  • Average low temperature in December: 55.9°F

The month with the highest average low temperature is August (79.9°F).
The coldest month (with the lowest average low temperature) is January (53.2°F).

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Average pressure in December
Mission, TX

Average pressure in December - Mission, TX
  • Average pressure in December: 30.07"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are May and June (29.87"Hg).

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Average wind speed in December
Mission, TX

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

The windiest months (with the highest average wind speed) are May and July (12.9mph).
The calmest month (with the lowest average wind speed) is September (9.3mph).

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Average humidity in December
Mission, TX

Average humidity in December - Mission, TX
  • Average humidity in December: 67%

The months with the highest relative humidity are May and December (67%).
The month with the lowest relative humidity is August (58%).

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Average rainfall in December
Mission, TX

Average rainfall in December - Mission, TX
  • Average rainfall in December: 0.12"

The wettest month (with the highest rainfall) is July (0.71").
The driest months (with the least rainfall) are February and December (0.12").

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Average rainfall days in December
Mission, TX

Average rainfall days in December - Mission, TX
  • Average rainfall days in December: 3.4 days

The month with the highest number of rainy days is September (11.3 days).
The month with the least rainy days is February (2.9 days).

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Average snowfall days in December
Mission, TX

Average snowfall days in December - Mission, TX
  • Average snowfall days in December: 0 days

The months with the highest number of snowfall days are January and February (0.1 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).

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

Average daylight in December / Average sunshine in December - Mission, 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 4min

The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).

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Average sunshine days in December
Mission, TX

Average sunshine days in December - Mission, TX
  • Average sunshine days in December: 24.3 days

The month with the most sunshine days is March (24.9 days).
The month with the least sunshine days is September (15.6 days).

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Average UV index in December
Mission, TX

Average UV index in December - Mission, TX
  • Average UV index in December: 4

The months with the highest UV index are July and August (UV index 8).
The month with the lowest UV index is December (UV index 4).

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Average cloud cover in December
Mission, TX

Average cloud cover in December - Mission, TX
  • Average cloud cover in December: 38

The month with the most cloud cover is December (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 17).

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Average visibility in December
Mission, TX

Average visibility in December - Mission, 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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Mission, Texas, USA

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