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 December commences, the average high-temperature subtly reduces, transitioning from an enjoyable 67.6°F (19.8°C) in November to a mild 59.7°F (15.4°C). Riverside observes an average nighttime temperature of 44.6°F (7°C) during December.Humidity
In December, the average relative humidity is 79%.Rainfall
In Riverside, during December, the rain falls for 13.4 days and regularly aggregates up to 3.15" (80mm) of precipitation. In Riverside, during the entire year, the rain falls for 168.8 days and collects up to 34.33" (872mm) of precipitation.Snowfall
January, February and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 0.3 snowfall days, it receives 0.16" (4mm) of snow. Throughout the year, there are 1.2 snowfall days, and 0.47" (12mm) of snow is accumulated.Daylight
With an average of 10h and 12min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:02 am and sunset at 5:19 pm. On the last day of December, sunrise is at 7:19 am and sunset at 5:30 pm CST.
Sunshine
December has the least sunshine of the year, with an average of 5h of sunshine.UV index
January and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 3 during December translates into these guidelines:
Ensure safety - Sun damage prevention is strongly urged. To guard against the harmful effects of the Sun, minimize exposure during midday. Enhance your sun protection with tightly woven, yet airy clothing. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
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 does it start to snow in Riverside?
What is the month with the shortest days?
How many hours of daylight does Riverside have in December?
What time are sunrise and sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
What are the months with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Riverside, TX
- Average high temperature in December: 59.7°F
The warmest month (with the highest average high temperature) is August (96.3°F).
The month with the lowest average high temperature is January (57.9°F).
- Average low temperature in December: 44.6°F
The months with the highest average low temperature are July and August (73.8°F).
The coldest month (with the lowest average low temperature) is January (41.2°F).
Average pressure in December
Riverside, TX
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Riverside, TX
- Average wind speed in December: 6.1mph
The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest month (with the lowest average wind speed) is September (4.8mph).
Average humidity in December
Riverside, TX
- Average humidity in December: 79%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is August (69%).
Average rainfall in December
Riverside, TX
- Average rainfall in December: 3.15"
The wettest month (with the highest rainfall) is May (4.49").
The driest month (with the least rainfall) is November (1.93").
Average rainfall days in December
Riverside, TX
- Average rainfall days in December: 13.4 days
The month with the highest number of rainy days is September (16.9 days).
The month with the least rainy days is October (11.7 days).
Average snowfall in December
Riverside, TX
- Average snowfall in December: 0.16"
The month with the highest snowfall is January (0.24").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Riverside, TX
- Average snowfall days in December: 0.3 days
The month with the highest number of snowfall days is January (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Riverside, TX
- Average daylight in December: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in December
Riverside, TX
- Average sunshine days in December: 14.5 days
The month with the most sunshine days is October (17.6 days).
The month with the least sunshine days is September (11.2 days).
Average UV index in December
Riverside, 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
Riverside, TX
- Average cloud cover in December: 49
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Riverside, TX
- Average visibility in December: 5mi
The month with the highest visibility is August (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, September, October, November and December (5mi).
Riverside, Texas, USA
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