December weather forecast
Royse City, TX

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Weather in December

December, the first month of the winter in Royse City, is still a cool month, with an average temperature fluctuating between 55°F (12.8°C) and 41.2°F (5.1°C).

Temperature

Royse City observes a minor decrease in the average high-temperature with the arrival of December, falling from November's refreshing 64°F (17.8°C) to a fresh 55°F (12.8°C). Throughout December, the nighttime temperature averages to a wintry 41.2°F (5.1°C).

Humidity

In December, the average relative humidity is 72%.

Rainfall

In Royse City, in December, it is raining for 9.9 days, with typically 2.28" (58mm) of accumulated precipitation. In Royse City, Texas, during the entire year, the rain falls for 146.2 days and collects up to 32.91" (836mm) of precipitation.

Snowfall

In Royse City, snow does not fall in March through October and December.

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 7:10 am and sunset at 5:18 pm. On the last day of December, sunrise is at 7:28 am and sunset at 5:29 pm CST.

Sunshine

With an average of 5.4h of sunshine, December has the least sunshine of the year in Royse City, Texas.

UV index

The months with the lowest UV index in Royse City are January and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum UV index of 3 in December translates into the following recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. The Sun's radiation is especially intense around midday; try to stay in shade during this period. During bright days, sunglasses that offer UVA and UVB defense are recommended. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
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Frequently asked questions

What is the average December temperature in Royse City?

In December, the average high-temperature and low-temperature are 55°F (12.8°C) and 41.2°F (5.1°C) respectively. The average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in September is estimated at 95°F (35°C).

What is the average humidity in December in Royse City?

The average relative humidity in December is 72%.

How much does it rain in Royse City in December?

In Royse City, Texas, in December, during 9.9 rainfall days, 2.28" (58mm) of precipitation is typically accumulated.

When it does not snow in Royse City?

March through October and December are months without snowfall.

Does it snow in Royse City in December?

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

What is the month with the shortest days in Royse City?

December has the shortest days of the year in Royse City, Texas, with an average of 10h and 0min of daylight.

How many hours of daylight does Royse City have in December?

The average day length in December in Royse City is 10h and 1min.

When is the sunrise / sunset in December in Royse City?

On the first day of December, sunrise is at 7:10 am and sunset at 5:18 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 5:29 pm CST.

What is the month with the least sunshine in Royse City?

December has the least sunshine of the year in Royse City, Texas, with an average of 5.4h of sunshine.

How long on average sun shines in December in Royse City?

The average sunshine duration in December is 5.4h.

When is the lowest UV index in Royse City?

January and December, with an average maximum UV index of 3, are months with the lowest UV index in Royse City, Texas.

How high is the UV index in December in Royse City?

In Royse City, Texas, the average daily maximum UV index in December is 3. A UV Index value of 3 to 5 symbolizes a medium health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Royse City, TX

Average temperature in December - Royse City, TX
  • Average high temperature in December: 55°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°F).

  • Average low temperature in December: 41.2°F

The months with the highest average low temperature are July and August (74.8°F).
The coldest month (with the lowest average low temperature) is January (38.5°F).

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Average pressure in December
Royse City, TX

Average pressure in December - Royse City, 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 (29.91"Hg).

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Average wind speed in December
Royse City, TX

Average wind speed in December - Royse City, TX
  • Average wind speed in December: 8.5mph

The windiest month (with the highest average wind speed) is March (9.6mph).
The calmest month (with the lowest average wind speed) is September (6.6mph).

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Average humidity in December
Royse City, TX

Average humidity in December - Royse City, TX
  • Average humidity in December: 72%

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

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Average rainfall in December
Royse City, TX

Average rainfall in December - Royse City, TX
  • Average rainfall in December: 2.28"

The wettest month (with the highest rainfall) is October (4.21").
The driest month (with the least rainfall) is January (1.81").

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Average rainfall days in December
Royse City, TX

Average rainfall days in December - Royse City, TX
  • Average rainfall days in December: 9.9 days

The month with the highest number of rainy days is September (15.2 days).
The month with the least rainy days is January (7.8 days).

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Average snowfall in December
Royse City, TX

Average snowfall in December - Royse City, TX
  • Average snowfall in December: 0"

The month with the highest snowfall is February (0.87").
The months with the least snowfall are March, April, May, June, July, August, September, October and December (0").

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Average snowfall days in December
Royse City, TX

Average snowfall days in December - Royse City, TX
  • Average snowfall days in December: 0.2 days

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

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Average daylight in December /
Average sunshine in December
Royse City, TX

Average daylight in December / Average sunshine in December - Royse City, 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: 5h and 2min

The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).

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Average sunshine days in December
Royse City, TX

Average sunshine days in December - Royse City, TX
  • Average sunshine days in December: 18.6 days

The month with the most sunshine days is January (21.4 days).
The month with the least sunshine days is September (13.4 days).

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Average UV index in December
Royse City, TX

Average UV index in December - Royse City, 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 and December (UV index 3).

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Average cloud cover in December
Royse City, TX

Average cloud cover in December - Royse City, TX
  • Average cloud cover in December: 40

The months with the most cloud cover are February and March (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 21).

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Average visibility in December
Royse City, TX

Average visibility in December - Royse City, 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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Royse City, Texas, USA

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