December weather forecast
Idalou, TX

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Weather in December

The first month of the winter, December, is still a cool month in Idalou, Texas, with an average temperature varying between 34.5°F (1.4°C) and 52.5°F (11.4°C).

Temperature

In Idalou, Texas, the month of December registers the lowest temperatures, averaging 52.5°F (11.4°C) at the peak and 34.5°F (1.4°C) at the lowest.

Humidity

In December, the average relative humidity is 53%.

Rainfall

In Idalou, in December, it is raining for 4.5 days, with typically 0.63" (16mm) of accumulated precipitation. In Idalou, during the entire year, the rain falls for 85.6 days and collects up to 13.98" (355mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. In December, it is snowing for 2.2 days. Throughout December, 1.14" (29mm) of snow is accumulated. In Idalou, Texas, during the entire year, snow falls for 8.5 days and aggregates up to 4.65" (118mm) of snow.

Daylight

With an average of 10h and 0min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:33 am and sunset at 5:38 pm. On the last day of the month, sunrise is at 7:51 am and sunset at 5:48 pm CST.

Sunshine

The month with the least sunshine is December, with an average of 6.8h of sunshine.

UV index

With an average maximum UV index of 2, December is the month with the lowest UV index in Idalou. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the average person.
Note: A maximum daily UV index of 2 during December morphs into the following directions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. To guard against the harmful effects of the Sun, minimize exposure during midday. Opt for tightly woven and loose clothing to enhance protection from the Sun. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Updated: Aug 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

Idalou witnesses the coldest weather in December, with temperatures averaging a high of 52.5°F (11.4°C) and a low of 34.5°F (1.4°C).

What are December temperatures?

December temperatures vary between a high-temperature of 52.5°F (11.4°C) and a low-temperature of 34.5°F (1.4°C). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, is calculated to be 86°F (30°C).

What is the average humidity in December?

The average relative humidity in December is 53%.

How many days does it rain in December?

In December, in Idalou, the rain falls for 4.5 days. Throughout December, 0.63" (16mm) of precipitation is accumulated.

How much does it snow in December?

In Idalou, in December, during 2.2 snowfall days, 1.14" (29mm) of snow is typically accumulated.

What is the month with the shortest days in Idalou?

December has the shortest days of the year, with an average of 10h and 0min of daylight.

How many hours of daylight does Idalou have in December?

In Idalou, the average day length in December is 9h and 58min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:33 am and sunset at 5:38 pm. On the last day of the month, sunrise is at 7:51 am and sunset at 5:48 pm CST.

What is the month with the least sunshine?

December has the least sunshine of the year, with an average of 6.8h of sunshine.

How many hours of sunshine does Idalou have in December?

In December, the average sunshine duration is 6.8h.

What is the month with the lowest UV index?

December is the month with the lowest UV index, with an average maximum UV index of 2.

How high is the UV index in December?

The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Idalou, TX

Average temperature in December - Idalou, TX
  • Average high temperature in December: 52.5°F

The warmest month (with the highest average high temperature) is July (92.8°F).
The month with the lowest average high temperature is December (52.5°F).

  • Average low temperature in December: 34.5°F

The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (33.8°F).

Average pressure in December
Idalou, TX

Average pressure in December - Idalou, TX
  • Average pressure in December: 30.1"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in December
Idalou, TX

Average wind speed in December - Idalou, TX
  • Average wind speed in December: 10.7mph

The windiest month (with the highest average wind speed) is April (13.2mph).
The calmest month (with the lowest average wind speed) is August (9.4mph).

Average humidity in December
Idalou, TX

Average humidity in December - Idalou, TX
  • Average humidity in December: 53%

The month with the highest relative humidity is September (58%).
The month with the lowest relative humidity is April (40%).

Average rainfall in December
Idalou, TX

Average rainfall in December - Idalou, TX
  • Average rainfall in December: 0.63"

The wettest month (with the highest rainfall) is September (2.32").
The driest month (with the least rainfall) is February (0.35").

Average rainfall days in December
Idalou, TX

Average rainfall days in December - Idalou, TX
  • Average rainfall days in December: 4.5 days

The month with the highest number of rainy days is September (12.3 days).
The months with the least rainy days are February and November (3.2 days).

Average snowfall in December
Idalou, TX

Average snowfall in December - Idalou, TX
  • Average snowfall in December: 1.14"

The month with the highest snowfall is February (1.61").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Idalou, TX

Average snowfall days in December - Idalou, TX
  • Average snowfall days in December: 2.2 days

The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Idalou, TX

Average daylight in December / Average sunshine in December - Idalou, TX
  • Average daylight in December: 10h and 0min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in December: 6h and 5min

The month with the most sunshine is June (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).

Average sunshine days in December
Idalou, TX

Average sunshine days in December - Idalou, TX
  • Average sunshine days in December: 24.6 days

The month with the most sunshine days is January (27.2 days).
The month with the least sunshine days is September (15.4 days).

Average UV index in December
Idalou, TX

Average UV index in December - Idalou, TX
  • Average UV index in December: 2

The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).

Average cloud cover in December
Idalou, TX

Average cloud cover in December - Idalou, TX
  • Average cloud cover in December: 23

The month with the most cloud cover is September (Cloud cover 24).
The months with the least cloud cover are June and August (Cloud cover 15).

Average visibility in December
Idalou, TX

Average visibility in December - Idalou, 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).

Idalou, Texas, USA

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