December weather forecast
Sherman, TX

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Weather in December

The first month of the winter, December, is also a fresh month in Sherman, Texas, with an average temperature ranging between max 52.9°F (11.6°C) and min 39°F (3.9°C).

Temperature

The shift to December brings a decrease in the average high-temperature, falling from a refreshing 62.2°F (16.8°C) in November to a fresh 52.9°F (11.6°C). Throughout the month of December, Sherman reports a steady low-temperature average of 39°F (3.9°C).

Humidity

The average relative humidity in December is 71%.

Rainfall

In Sherman, during December, the rain falls for 9 days and regularly aggregates up to 1.81" (46mm) of precipitation. In Sherman, during the entire year, the rain falls for 140.2 days and collects up to 31.77" (807mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall. In December, it is snowing for 0.5 days. Throughout December, 0.31" (8mm) of snow is accumulated. In Sherman, Texas, during the entire year, snow falls for 3.8 days and aggregates up to 1.89" (48mm) of snow.

Daylight

December has the shortest days of the year, with an average of 10h and 0min of daylight.
On the first day of December, sunrise is at 7:13 am and sunset at 5:18 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:28 pm CST.

Sunshine

With an average of 5.7h of sunshine, December has the least sunshine of the year.

UV index

With an average maximum UV index of 2, December is the month with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the average person.
Note: The daily high UV index of 2 during December translates into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Updated: Jun 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Sherman in December?

In Sherman, in December, the average high-temperature is 52.9°F (11.6°C), and the average low-temperature is 39°F (3.9°C). In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 93.2°F (34°C).

What is the average humidity in December?

In December, the average relative humidity is 71%.

How much does it rain in December?

In Sherman, in December, during 9 rainfall days, 1.81" (46mm) of precipitation is typically accumulated.

How much does it snow in December?

In Sherman, in December, during 0.5 snowfall days, 0.31" (8mm) of snow is typically accumulated.

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.

What is the average length of the day in December?

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

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:13 am and sunset at 5:18 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:28 pm CST.

What is the month with the least sunshine?

The month with the least sunshine is December, with an average of 5.7h of sunshine.

How long on average sun shines in December?

In December, the average sunshine duration is 5.7h.

What is the month with the lowest UV index?

With an average maximum UV index of 2, December is the month with the lowest UV index.

What is the UV index intensity in December in Sherman?

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal health 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
Sherman, TX

Average temperature in December - Sherman, TX
  • Average high temperature in December: 52.9°F

The warmest month (with the highest average high temperature) is August (94.1°F).
The month with the lowest average high temperature is January (52.2°F).

  • Average low temperature in December: 39°F

The month with the highest average low temperature is July (74.1°F).
The coldest month (with the lowest average low temperature) is January (36.3°F).

Average pressure in December
Sherman, TX

Average pressure in December - Sherman, 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 (29.9"Hg).

Average wind speed in December
Sherman, TX

Average wind speed in December - Sherman, TX
  • Average wind speed in December: 8.9mph

The windiest month (with the highest average wind speed) is March (10.3mph).
The calmest month (with the lowest average wind speed) is September (6.9mph).

Average humidity in December
Sherman, TX

Average humidity in December - Sherman, TX
  • Average humidity in December: 71%

The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is August (60%).

Average rainfall in December
Sherman, TX

Average rainfall in December - Sherman, TX
  • Average rainfall in December: 1.81"

The wettest month (with the highest rainfall) is October (4.09").
The driest month (with the least rainfall) is January (1.73").

Average rainfall days in December
Sherman, TX

Average rainfall days in December - Sherman, TX
  • Average rainfall days in December: 9 days

The month with the highest number of rainy days is May (15 days).
The month with the least rainy days is January (7.3 days).

Average snowfall in December
Sherman, TX

Average snowfall in December - Sherman, TX
  • Average snowfall in December: 0.31"

The month with the highest snowfall is February (0.94").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Sherman, TX

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

The month with the highest number of snowfall days is February (1.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in December: 5h and 4min

The month with the most sunshine is August (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

Average sunshine days in December
Sherman, TX

Average sunshine days in December - Sherman, TX
  • Average sunshine days in December: 20 days

The month with the most sunshine days is January (21.7 days).
The month with the least sunshine days is April (13.9 days).

Average UV index in December
Sherman, TX

Average UV index in December - Sherman, TX
  • Average UV index in December: 2

The 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 2).

Average cloud cover in December
Sherman, TX

Average cloud cover in December - Sherman, TX
  • Average cloud cover in December: 36

The month with the most cloud cover is March (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 19).

Average visibility in December
Sherman, TX

Average visibility in December - Sherman, 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).

Sherman, Texas, USA

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