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
In December, the average high-temperature slightly decreases from a comfortable 67.1°F (19.5°C) in November to a moderate 59.4°F (15.2°C). In December, in Round Rock, the average low-temperature is 44.4°F (6.9°C).Humidity
In December, the average relative humidity is 70%.Rainfall
In Round Rock, during December, the rain falls for 9.6 days and regularly aggregates up to 1.65" (42mm) of precipitation. In Round Rock, during the entire year, the rain falls for 139.3 days and collects up to 26.18" (665mm) of precipitation.Snowfall
In Round Rock, snow does not fall in March through December.Daylight
December has the shortest days of the year in Round Rock, with an average of 10h and 13min of daylight.On the first day of December, sunrise is at 7:10 am and sunset at 5:29 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 5:39 pm CST.
Sunshine
December has the least sunshine of the year, with an average of 5.3h of sunshine.UV index
December is the month with the lowest UV index in Round Rock, Texas, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The average daily UV index of 3 in December transform into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
FAQ
What is the temperature in December in Round Rock?
What is the average humidity in December in Round Rock?
How many days does it rain in December in Round Rock?
When it does not snow in Round Rock?
Does it snow in Round Rock in December?
What is the month with the shortest days in Round Rock?
How many hours of daylight does Round Rock have in December?
When is the sunrise / sunset in December in Round Rock?
What is the month with the least sunshine in Round Rock?
How long on average sun shines in December in Round Rock?
What is the month with the lowest UV index in Round Rock?
What is the UV index reading in December in Round Rock?
Average temperature in December
Round Rock, TX
- Average high temperature in December: 59.4°F
The warmest month (with the highest average high temperature) is August (96.1°F).
The month with the lowest average high temperature is January (58.6°F).
- Average low temperature in December: 44.4°F
The month with the highest average low temperature is August (75.4°F).
The coldest month (with the lowest average low temperature) is January (42.4°F).
Average pressure in December
Round Rock, TX
- Average pressure in December: 30.11"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
Round Rock, TX
- Average wind speed in December: 8.6mph
The windiest month (with the highest average wind speed) is March (9.8mph).
The calmest month (with the lowest average wind speed) is September (6.5mph).
Average humidity in December
Round Rock, TX
- Average humidity in December: 70%
The month with the highest relative humidity is May (75%).
The month with the lowest relative humidity is August (59%).
Average rainfall in December
Round Rock, TX
- Average rainfall in December: 1.65"
The wettest month (with the highest rainfall) is May (4.02").
The driest month (with the least rainfall) is February (1.14").
Average rainfall days in December
Round Rock, TX
- Average rainfall days in December: 9.6 days
The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in December
Round Rock, TX
- Average snowfall in December: 0"
The month with the highest snowfall is February (0.24").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in December
Round Rock, TX
- Average snowfall days in December: 0.3 days
The month with the highest number of snowfall days is February (0.8 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
Round Rock, TX
- Average daylight in December: 10h and 13min
The month with the longest days is June (Average daylight: 14h and 5min).
The month with the shortest days is December (Average daylight: 10h and 13min).
- Average sunshine in December: 5h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in December
Round Rock, TX
- Average sunshine days in December: 18.4 days
The month with the most sunshine days is January (21.1 days).
The months with the least sunshine days are April, May and September (13.3 days).
Average UV index in December
Round Rock, TX
- Average UV index in December: 3
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 3).
Average cloud cover in December
Round Rock, TX
- Average cloud cover in December: 42
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in December
Round Rock, 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).
Weather forecast for your location
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location
