Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
As November shifts into December, a slight alteration in temperatures is observed, with average highs reducing from a comfortable 64°F (17.8°C) to a fresh 55°F (12.8°C). Throughout December, Royse City records an average temperature of 41.2°F (5.1°C) at night.Humidity
The average relative humidity in December is 72%.Rainfall
In December, the rain falls for 9.9 days. Throughout December, 2.28" (58mm) of precipitation is accumulated. Throughout the year, there are 146.2 rainfall days, and 32.91" (836mm) of precipitation is accumulated.Snowfall
In Royse City, snow does not fall in March through October and December.Daylight
The month with the shortest days is December, with an average of 10h and 0min of daylight.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.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 threat to health from exposure to the Sun's UV rays for the average person.Note: The daily high UV index of 3 during December translates into the following recommendations:
Undertake protective steps - Preventing sun damage is advised. When the Sun is at its strongest around midday, find shade and limit exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature?
What is the average humidity in December?
How many days does it rain in December?
When it does not snow?
Does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Royse City have in December?
What time are sunrise and sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Royse City have in December?
What are the months with the lowest UV index?
How high is the UV index in December?
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).
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).
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).
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%).
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").
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).
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").
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).
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).
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).
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).
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).
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).
Royse City, Texas, USA
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