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 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
Start of December brings a slight shift in the average high-temperature, dipping a bit from November's agreeable 73°F (22.8°C) to an enjoyable 65.7°F (18.7°C). Throughout December, the nighttime temperature in Calallen averages to a fresh 52.7°F (11.5°C).Humidity
In Calallen, the average relative humidity in December is 74%.Rainfall
In Calallen, during December, the rain falls for 12.3 days and regularly aggregates up to 1.3" (33mm) of precipitation. Throughout the year, there are 135.9 rainfall days, and 16.65" (423mm) of precipitation is accumulated.Snowfall
January, March through December are months without snowfall.Daylight
December has the shortest days of the year in Calallen, Texas, with an average of 10h and 24min of daylight.On the first day of the month, sunrise is at 7:04 am and sunset at 5:34 pm. On the last day of December, sunrise is at 7:21 am and sunset at 5:46 pm CST.
Sunshine
The month with the least sunshine in Calallen is December, with an average of 4.8h of sunshine.UV index
January and December, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 4 in December translates into these instructions:
Take necessary precautions - Protection from skin and eye injury is mandatory. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Boost your sun resistance with garments that are densely woven yet spacious.
Frequently asked questions
What is the usual temperature for Calallen in December?
What is the average humidity in December in Calallen?
How much does it rain in Calallen in December?
When it does not snow in Calallen?
What is the month with the shortest days in Calallen?
What is the average length of the day in December in Calallen?
When is the sunrise / sunset in December in Calallen?
What is the month with the least sunshine in Calallen?
How many hours of sunshine does Calallen have in December?
When is the lowest UV index in Calallen?
What is the UV index intensity in December in Calallen?
Average temperature in December
Calallen, TX
- Average high temperature in December: 65.7°F
The warmest month (with the highest average high temperature) is August (95°F).
The month with the lowest average high temperature is January (64.9°F).
- Average low temperature in December: 52.7°F
The month with the highest average low temperature is August (79°F).
The coldest month (with the lowest average low temperature) is January (50.4°F).
Average pressure in December
Calallen, TX
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are May and June (29.88"Hg).
Average wind speed in December
Calallen, TX
- Average wind speed in December: 9mph
The windiest month (with the highest average wind speed) is May (11.1mph).
The calmest month (with the lowest average wind speed) is September (8.3mph).
Average humidity in December
Calallen, TX
- Average humidity in December: 74%
The month with the highest relative humidity is May (75%).
The month with the lowest relative humidity is August (66%).
Average rainfall in December
Calallen, TX
- Average rainfall in December: 1.3"
The wettest month (with the highest rainfall) is September (2.48").
The driest month (with the least rainfall) is August (0.71").
Average rainfall days in December
Calallen, TX
- Average rainfall days in December: 12.3 days
The month with the highest number of rainy days is September (16.5 days).
The month with the least rainy days is August (7.1 days).
Average snowfall days in December
Calallen, TX
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Calallen, TX
- Average daylight in December: 10h and 2min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in December
Calallen, TX
- Average sunshine days in December: 15.3 days
The month with the most sunshine days is July (21.6 days).
The month with the least sunshine days is September (11.3 days).
Average UV index in December
Calallen, TX
- Average UV index in December: 4
The month with the highest UV index is July (UV index 8).
The months with the lowest UV index are January and December (UV index 4).
Average cloud cover in December
Calallen, TX
- Average cloud cover in December: 46
The months with the most cloud cover are February and December (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in December
Calallen, 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).
Calallen, Texas, USA
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