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
December's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from November's comfortable 67.5°F (19.7°C) to a mild 59.5°F (15.3°C). Jonestown, during December nights, observes an average temperature of 44.1°F (6.7°C).Humidity
In Jonestown, the average relative humidity in December is 70%.Rainfall
In Jonestown, in December, it is raining for 9.2 days, with typically 1.42" (36mm) of accumulated precipitation. In Jonestown, during the entire year, the rain falls for 137.4 days and collects up to 24.13" (613mm) of precipitation.Snowfall
March through December are months without snowfall in Jonestown.Daylight
The month with the shortest days is December, with an average of 10h and 12min of daylight.On the first day of December, sunrise is at 7:11 am and sunset at 5:30 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 5:41 pm CST.
Sunshine
The months with the least sunshine are November and December, with an average of 5.4h of sunshine.UV index
The month with the lowest UV index is December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: In December, an average UV index of 3 transforms into the following instructions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
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 Jonestown have in December?
When is the sunrise / sunset in December?
What is the month with the least sunshine in Jonestown?
How many hours of sunshine does Jonestown have in December?
What is the month with the lowest UV index in Jonestown?
What is the UV index reading in December?
Average temperature in December
Jonestown, TX
- Average high temperature in December: 59.5°F
The warmest month (with the highest average high temperature) is August (95.5°F).
The month with the lowest average high temperature is January (58.8°F).
- Average low temperature in December: 44.1°F
The month with the highest average low temperature is August (74.8°F).
The coldest month (with the lowest average low temperature) is January (41.9°F).
Average pressure in December
Jonestown, TX
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are May and June (29.91"Hg).
Average wind speed in December
Jonestown, TX
- Average wind speed in December: 8.2mph
The windiest month (with the highest average wind speed) is March (9.6mph).
The calmest month (with the lowest average wind speed) is September (6.3mph).
Average humidity in December
Jonestown, TX
- Average humidity in December: 70%
The month with the highest relative humidity is May (74%).
The month with the lowest relative humidity is August (59%).
Average rainfall in December
Jonestown, TX
- Average rainfall in December: 1.42"
The wettest month (with the highest rainfall) is May (4.02").
The driest month (with the least rainfall) is February (1.02").
Average rainfall days in December
Jonestown, TX
- Average rainfall days in December: 9.2 days
The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is January (8.2 days).
Average snowfall in December
Jonestown, 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
Jonestown, TX
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is February (0.9 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
Jonestown, 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 2min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The months with the least sunshine are November and December (Average sunshine: 5h and 24min).
Average sunshine days in December
Jonestown, TX
- Average sunshine days in December: 19.5 days
The month with the most sunshine days is January (21.2 days).
The month with the least sunshine days is May (12.5 days).
Average UV index in December
Jonestown, 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
Jonestown, TX
- Average cloud cover in December: 40
The months with the most cloud cover are March and May (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in December
Jonestown, 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).
Jonestown, Texas, USA
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