December weather forecast
May, TX

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Weather in December

The first month of the winter, December, is still a refreshing month in May, Texas, with temperature in the range of an average high of 58.1°F (14.5°C) and an average low of 40.5°F (4.7°C).

Temperature

The lowest level of May's temperatures is noted during January and December, averaging a high-temperature of 58.1°F (14.5°C).

Humidity

The average relative humidity in December is 62%.

Rainfall

In May, during December, the rain falls for 6.7 days and regularly aggregates up to 1.18" (30mm) of precipitation. Throughout the year, there are 115.7 rainfall days, and 19.96" (507mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March and December. December is the first month it typically snows. Throughout December, in the average 1 snowfall days, it receives 0.47" (12mm) of snow. In May, during the entire year, snow falls for 3.2 days and aggregates up to 1.46" (37mm) of snow.

Daylight

The month with the shortest days is December, with an average of 10h and 6min of daylight.
On the first day of December, sunrise is at 7:18 am and sunset at 5:31 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 5:42 pm CST.

Sunshine

December has the least sunshine of the year, with an average of 5.9h of sunshine.

UV index

With an average maximum UV index of 3, December is the month with the lowest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The UV index of 3 during December leads to these advisories:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Updated: Jul 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months?

The coldest months are January and December, with an average high-temperature of 58.1°F (14.5°C).

What is the average December temperature in May?

In May, 58.1°F (14.5°C) is the average high-temperature and 40.5°F (4.7°C) is the average low-temperature during December. The average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in September is evaluated at 93.2°F (34°C).

What is the average humidity in December?

In December, the average relative humidity is 62%.

How many days does it rain in December?

In May, in December, it is raining for 6.7 days, with typically 1.18" (30mm) of accumulated precipitation.

When does it start snowing?

December is the first month it typically snows. Throughout December, in the average 1 snowfall days, it receives 0.47" (12mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 10h and 6min of daylight.

What is the average length of the day in December?

The average day length in December in May is 10h and 6min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:18 am and sunset at 5:31 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 5:42 pm CST.

What is the month with the least sunshine?

The month with the least sunshine is December, with an average of 5.9h of sunshine.

How many hours of sunshine does May have in December?

In May, the average sunshine duration in December is 5.9h.

When is the lowest UV index?

With an average maximum UV index of 3, December is the month with the lowest UV index.

What is the UV index intensity in December?

The average daily maximum UV index in December is 3. A UV Index value of 3 to 5 symbolizes a medium health risk from unprotected exposure to 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
May, TX

Average temperature in December - May, TX
  • Average high temperature in December: 58.1°F

The warmest month (with the highest average high temperature) is August (95.7°F).
The months with the lowest average high temperature are January and December (58.1°F).

  • Average low temperature in December: 40.5°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 (39°F).

Average pressure in December
May, TX

Average pressure in December - May, TX
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in December
May, TX

Average wind speed in December - May, TX
  • Average wind speed in December: 9.7mph

The windiest month (with the highest average wind speed) is April (12.1mph).
The calmest month (with the lowest average wind speed) is September (8.3mph).

Average humidity in December
May, TX

Average humidity in December - May, TX
  • Average humidity in December: 62%

The month with the highest relative humidity is May (66%).
The month with the lowest relative humidity is August (51%).

Average rainfall in December
May, TX

Average rainfall in December - May, TX
  • Average rainfall in December: 1.18"

The wettest month (with the highest rainfall) is May (2.6").
The driest month (with the least rainfall) is January (0.94").

Average rainfall days in December
May, TX

Average rainfall days in December - May, TX
  • Average rainfall days in December: 6.7 days

The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is January (5.4 days).

Average snowfall in December
May, TX

Average snowfall in December - May, TX
  • Average snowfall in December: 0.47"

The month with the highest snowfall is February (0.83").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in December
May, TX

Average snowfall days in December - May, TX
  • Average snowfall days in December: 1 days

The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - May, 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 5min

The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).

Average sunshine days in December
May, TX

Average sunshine days in December - May, TX
  • Average sunshine days in December: 22.2 days

The month with the most sunshine days is January (23.8 days).
The month with the least sunshine days is May (13.4 days).

Average UV index in December
May, TX

Average UV index in December - May, TX
  • Average UV index in December: 3

The month with the highest UV index is July (UV index 8).
The month with the lowest UV index is December (UV index 3).

Average cloud cover in December
May, TX

Average cloud cover in December - May, TX
  • Average cloud cover in December: 31

The months with the most cloud cover are March and May (Cloud cover 34).
The month with the least cloud cover is August (Cloud cover 19).

Average visibility in December
May, TX

Average visibility in December - May, 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).

May, Texas, USA

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