December weather forecast
Seymour, TX

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Weather in December

The first month of the winter, December, is also a fresh month in Seymour, Texas, with an average temperature varying between 37.9°F (3.3°C) and 54.5°F (12.5°C).

Temperature

December is Seymour's coldest month, registering average high temperatures of 54.5°F (12.5°C) and lows of 37.9°F (3.3°C).

Humidity

In Seymour, Texas, the average relative humidity in December is 59%.

Rainfall

In Seymour, in December, during 5.2 rainfall days, 1.1" (28mm) of precipitation is typically accumulated. In Seymour, during the entire year, the rain falls for 100.8 days and collects up to 18.31" (465mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. In Seymour, during December, snow falls for 1 days and regularly aggregates up to 1.1" (28mm) of snow. Throughout the year, there are 5.4 snowfall days, and 3.27" (83mm) of snow is accumulated.

Daylight

With an average of 10h and 0min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:23 am and sunset at 5:28 pm. On the last day of December, sunrise is at 7:41 am and sunset at 5:39 pm CST.

Sunshine

November and December, with an average of 6.5h of sunshine, are months with the least sunshine.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, the maximum UV index of 3 translates into these guidelines:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.

Frequently asked questions

What is the coldest time of year?

December is the month when Seymour experiences its coldest temperatures, averaging a high of 54.5°F (12.5°C) and a low of 37.9°F (3.3°C).

What are December temperatures?

An average high-temperature, in December, in Seymour, is 54.5°F (12.5°C) and the average low-temperature is 37.9°F (3.3°C). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, is estimated at 93.2°F (34°C).

What is the average humidity in December?

The average relative humidity in December in Seymour is 59%.

How many days does it rain in December?

In Seymour, during December, the rain falls for 5.2 days and regularly aggregates up to 1.1" (28mm) of precipitation.

How many days does it snow in December?

In Seymour, Texas, during December, snow falls for 1 days and regularly aggregates up to 1.1" (28mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 10h and 0min of daylight.

How many hours of daylight does Seymour have in December?

The average day length in December is 9h and 58min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:23 am and sunset at 5:28 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:39 pm CST.

What is the month with the least sunshine?

The months with the least sunshine are November and December, with an average of 6.5h of sunshine.

How long on average sun shines in December?

In Seymour, the average sunshine duration in December is 6.5h.

When is the lowest UV index?

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

How high is the UV index in December?

In Seymour, the average daily maximum UV index in December is 3. A UV Index estimate of 3 to 5 represents a medium hazard to health from unsafe 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
Seymour, TX

Average temperature in December - Seymour, TX
  • Average high temperature in December: 54.5°F

The warmest month (with the highest average high temperature) is August (97.3°F).
The month with the lowest average high temperature is December (54.5°F).

  • Average low temperature in December: 37.9°F

The month with the highest average low temperature is July (77°F).
The coldest month (with the lowest average low temperature) is January (36.5°F).

Average pressure in December
Seymour, TX

Average pressure in December - Seymour, TX
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

Average wind speed in December
Seymour, TX

Average wind speed in December - Seymour, TX
  • Average wind speed in December: 9.9mph

The windiest month (with the highest average wind speed) is April (12.6mph).
The calmest month (with the lowest average wind speed) is September (9mph).

Average humidity in December
Seymour, TX

Average humidity in December - Seymour, TX
  • Average humidity in December: 59%

The month with the highest relative humidity is May (60%).
The month with the lowest relative humidity is August (46%).

Average rainfall in December
Seymour, TX

Average rainfall in December - Seymour, TX
  • Average rainfall in December: 1.1"

The wettest month (with the highest rainfall) is May (2.36").
The driest month (with the least rainfall) is February (0.67").

Average rainfall days in December
Seymour, TX

Average rainfall days in December - Seymour, TX
  • Average rainfall days in December: 5.2 days

The month with the highest number of rainy days is September (12.2 days).
The month with the least rainy days is January (4.2 days).

Average snowfall in December
Seymour, TX

Average snowfall in December - Seymour, TX
  • Average snowfall in December: 1.1"

The month with the highest snowfall is February (1.46").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Seymour, TX

Average snowfall days in December - Seymour, TX
  • Average snowfall days in December: 1 days

The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Seymour, TX
  • Average daylight in December: 10h and 0min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in December: 6h and 3min

The months with the most sunshine are June and July (Average sunshine: 11h and 24min).
The months with the least sunshine are November and December (Average sunshine: 6h and 30min).

Average sunshine days in December
Seymour, TX

Average sunshine days in December - Seymour, TX
  • Average sunshine days in December: 24 days

The month with the most sunshine days is January (25.9 days).
The month with the least sunshine days is September (15.8 days).

Average UV index in December
Seymour, TX

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

The month with the highest UV index is June (UV index 8).
The months with the lowest UV index are January and December (UV index 3).

Average cloud cover in December
Seymour, TX

Average cloud cover in December - Seymour, TX
  • Average cloud cover in December: 26

The month with the most cloud cover is March (Cloud cover 28).
The month with the least cloud cover is August (Cloud cover 16).

Average visibility in December
Seymour, TX

Average visibility in December - Seymour, 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).

Seymour, Texas, USA

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