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 begins, there is a minor decrease in the average high-temperature, softly falling from a comfortable 65.3°F (18.5°C) in November to a still refreshing 56.8°F (13.8°C). Throughout December, Mount Calm records an average temperature of 42.4°F (5.8°C) at night.Humidity
In December, the average relative humidity in Mount Calm is 72%.Rainfall
In Mount Calm, Texas, during December, the rain falls for 10.3 days and regularly aggregates up to 2.05" (52mm) of precipitation. Throughout the year, there are 140.8 rainfall days, and 30.39" (772mm) of precipitation is accumulated.Snowfall
In Mount Calm, snow does not fall in March through December.Daylight
With an average of 10h and 6min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:10 am and sunset at 5:23 pm. On the last day of December, in Mount Calm, sunrise is at 7:27 am and sunset at 5:34 pm CST.
Sunshine
With an average of 5.3h of sunshine, December has the least sunshine of the year.UV index
The months with the lowest UV index in Mount Calm are January and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: A maximum UV index of 3 in December translates into the following recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Mount Calm in December?
What is the average humidity in December in Mount Calm?
How many days does it rain in December in Mount Calm?
When it does not snow in Mount Calm?
Does it snow in Mount Calm in December?
What is the month with the shortest days in Mount Calm?
What is the average length of the day in December in Mount Calm?
When are sunrise and sunset in December in Mount Calm?
What is the month with the least sunshine in Mount Calm?
How many hours of sunshine does Mount Calm have in December?
When is the lowest UV index in Mount Calm?
What is the UV index intensity in December in Mount Calm?
Average temperature in December
Mount Calm, TX
- Average high temperature in December: 56.8°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 (56.1°F).
- Average low temperature in December: 42.4°F
The month with the highest average low temperature is August (75.7°F).
The coldest month (with the lowest average low temperature) is January (40.1°F).
Average pressure in December
Mount Calm, TX
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Mount Calm, TX
- Average wind speed in December: 9mph
The windiest month (with the highest average wind speed) is March (10.3mph).
The calmest month (with the lowest average wind speed) is September (6.7mph).
Average humidity in December
Mount Calm, 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 (58%).
Average rainfall in December
Mount Calm, TX
- Average rainfall in December: 2.05"
The wettest month (with the highest rainfall) is October (4.25").
The driest months (with the least rainfall) are July and November (1.73").
Average rainfall days in December
Mount Calm, TX
- Average rainfall days in December: 10.3 days
The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is January (7.4 days).
Average snowfall in December
Mount Calm, TX
- Average snowfall in December: 0"
The month with the highest snowfall is February (0.67").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in December
Mount Calm, TX
- Average snowfall days in December: 0.2 days
The month with the highest number of snowfall days is February (1.2 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
Mount Calm, TX
- Average daylight in December: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in December: 5h and 2min
The months with the most sunshine are July and August (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in December
Mount Calm, TX
- Average sunshine days in December: 18.8 days
The month with the most sunshine days is January (22 days).
The month with the least sunshine days is May (13.3 days).
Average UV index in December
Mount Calm, TX
- Average UV index in December: 3
The months with the highest UV index are May, 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
Mount Calm, TX
- Average cloud cover in December: 40
The month with the most cloud cover is March (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in December
Mount Calm, 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).
Mount Calm, Texas, USA
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