December weather forecast
Tyler, TX

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Weather in December

December in Tyler, Texas ushers in winter, displayed by temperatures slipping to a high of 56.3°F (13.5°C) from the warmer November readings. Although relatively rare, this month can occasionally receive a 0.04" (1mm) snowfall, boosting the Christmas spirit. The decreasing sunshine hours and increasing cloud cover additionally contribute to the cold winter vibes. The sudden drop in temperature and shorter daylight hours make December the coldest month of the year, thus marking the end of the annual weather cycle.

Temperature

December ushers in a minor alteration in Tyler's climate, with the average high-temperature moving from November's enjoyable 64.6°F (18.1°C) to a mild 56.3°F (13.5°C). Throughout December, the average low-temperature in Tyler records at an icy 41.7°F (5.4°C).

Humidity

In Tyler, Texas, the average relative humidity in December is 77%.

Rainfall

In Tyler, in December, during 11 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. In Tyler, Texas, during the entire year, the rain falls for 143.4 days and collects up to 25.75" (654mm) of precipitation.

Snowfall

April through October and December are months without snowfall.

Daylight

The month with the shortest days is December, with an average of 10h and 6min of daylight.
On the first day of the month, sunrise is at 7:05 am and sunset at 5:15 pm. On the last day of December, in Tyler, Texas, sunrise is at 7:22 am and sunset at 5:26 pm CST.

Sunshine

The month with the least sunshine in Tyler is December, with an average of 5.1h of sunshine.

UV index

January, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Tyler. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: In December, an average UV index of 3 transforms into the following instructions:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
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Frequently asked questions

What is the average December temperature in Tyler?

The high-temperature, in December, in Tyler, is 56.3°F (13.5°C), while the low-temperature averages to 41.7°F (5.4°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines relative humidity and air temperature, in September is computed to be 100.4°F (38°C).

What is the average humidity in December in Tyler?

The average relative humidity in December in Tyler is 77%.

How much does it rain in Tyler in December?

In Tyler, Texas, in December, during 11 rainfall days, 2.24" (57mm) of precipitation is typically accumulated.

When it does not snow in Tyler?

April through October and December are months without snowfall.

Does it snow in Tyler in December?

In December, in Tyler, it doesn't snow. November is the latest month when it typically snows.

What is the month with the shortest days in Tyler?

The month with the shortest days is December, with an average of 10h and 6min of daylight.

How many hours of daylight does Tyler have in December?

In Tyler, Texas, the average day length in December is 10h and 4min.

When is the sunrise / sunset in December in Tyler?

On the first day of December, sunrise is at 7:05 am and sunset at 5:15 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 5:26 pm CST.

What is the month with the least sunshine in Tyler?

The month with the least sunshine is December, with an average of 5.1h of sunshine.

How long on average sun shines in December in Tyler?

In December, the average sunshine duration is 5.1h.

When is the lowest UV index in Tyler?

The months with the lowest UV index in Tyler, Texas, are January, November and December, with an average maximum UV index of 3.

How high is the UV index in December in Tyler?

The average daily maximum UV index in December in Tyler is 3. A UV Index reading of 3 to 5 represents a medium health risk from exposure to Sun's UV rays.
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
Tyler, TX

Average temperature in December - Tyler, TX
  • Average high temperature in December: 56.3°F

The warmest month (with the highest average high temperature) is August (95°F).
The month with the lowest average high temperature is January (54.7°F).

  • Average low temperature in December: 41.7°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 (38.8°F).

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Average pressure in December
Tyler, TX

Average pressure in December - Tyler, TX
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in December
Tyler, TX

Average wind speed in December - Tyler, TX
  • Average wind speed in December: 7mph

The windiest month (with the highest average wind speed) is March (7.7mph).
The calmest month (with the lowest average wind speed) is September (5.5mph).

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Average humidity in December
Tyler, TX

Average humidity in December - Tyler, TX
  • Average humidity in December: 77%

The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is August (65%).

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Average rainfall in December
Tyler, TX

Average rainfall in December - Tyler, TX
  • Average rainfall in December: 2.24"

The wettest month (with the highest rainfall) is April (2.99").
The driest month (with the least rainfall) is August (1.54").

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Average rainfall days in December
Tyler, TX

Average rainfall days in December - Tyler, TX
  • Average rainfall days in December: 11 days

The month with the highest number of rainy days is September (14.1 days).
The month with the least rainy days is January (9.3 days).

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Average snowfall in December
Tyler, TX

Average snowfall in December - Tyler, TX
  • Average snowfall in December: 0"

The month with the highest snowfall is February (0.55").
The months with the least snowfall are April, May, June, July, August, September, October and December (0").

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Average snowfall days in December
Tyler, TX

Average snowfall days in December - Tyler, TX
  • Average snowfall days in December: 0.5 days

The month with the highest number of snowfall days is February (1.4 days).
The months with the least snowfall days are April, May, June, July, August and October (0 days).

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

Average daylight in December / Average sunshine in December - Tyler, 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: 5h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

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Average sunshine days in December
Tyler, TX

Average sunshine days in December - Tyler, TX
  • Average sunshine days in December: 17.2 days

The month with the most sunshine days is October (20.1 days).
The month with the least sunshine days is September (13.5 days).

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Average UV index in December
Tyler, TX

Average UV index in December - Tyler, 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, November and December (UV index 3).

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Average cloud cover in December
Tyler, TX

Average cloud cover in December - Tyler, TX
  • Average cloud cover in December: 45

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 26).

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Average visibility in December
Tyler, TX

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

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

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Tyler, Texas, USA

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