December weather forecast
Runaway Bay, TX

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Weather in December

The first month of the winter, December, is also a fresh month in Runaway Bay, Texas, with an average temperature fluctuating between 39.2°F (4°C) and 54.5°F (12.5°C).

Temperature

Runaway Bay's lowest temperatures tend to occur in January and December, with an average high-temperature of 54.5°F (12.5°C).

Humidity

The average relative humidity in December is 66%.

Rainfall

In Runaway Bay, in December, it is raining for 7.4 days, with typically 1.26" (32mm) of accumulated precipitation. In Runaway Bay, during the entire year, the rain falls for 125.7 days and collects up to 25.28" (642mm) of precipitation.

Snowfall

Months with snowfall are January through March and December. December is the first month it typically snows. Throughout December, in the average 0.7 snowfall days, it receives 0.24" (6mm) of snow. In Runaway Bay, during the entire year, snow falls for 3.7 days and aggregates up to 1.46" (37mm) of snow.

Daylight

December has the shortest days of the year in Runaway Bay, with an average of 10h and 0min of daylight.
On the first day of December, sunrise is at 7:17 am and sunset at 5:24 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 5:34 pm CST.

Sunshine

The month with the least sunshine is December, with an average of 6h of sunshine.

UV index

The months with the lowest UV index 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 unprotected exposure to Sun's UV rays for the ordinary person.
Note: In December, a regular UV index of 3 translates into these guidelines:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Updated: Aug 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months?

January and December represent the coldest period, with an average high-temperature of 54.5°F (12.5°C).

What are the temperatures in December?

The high-temperature, in December, in Runaway Bay, is 54.5°F (12.5°C), while the low-temperature averages to 39.2°F (4°C). In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 95°F (35°C).

What is the average humidity in December?

In December, the average relative humidity is 66%.

How many days does it rain in December?

In Runaway Bay, in December, during 7.4 rainfall days, 1.26" (32mm) of precipitation is typically accumulated.

When does it start to snow?

December is the first month it typically snows. Throughout December, in the average 0.7 snowfall days, it receives 0.24" (6mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 10h and 0min of daylight.

How many hours of daylight does Runaway Bay have in December?

In Runaway Bay, the average day length in December is 10h and 0min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:17 am and sunset at 5:24 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 5:34 pm CST.

What is the month with the least sunshine?

With an average of 6h of sunshine, December has the least sunshine of the year in Runaway Bay.

How many hours of sunshine does Runaway Bay have in December?

In Runaway Bay, the average sunshine duration in December is 6h.

What are the months with the lowest UV index?

The months with the lowest UV index are January and December, with an average maximum UV index of 3.

What is the UV index reading in December?

In December, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Runaway Bay, TX

Average temperature in December - Runaway Bay, TX
  • Average high temperature in December: 54.5°F

The warmest month (with the highest average high temperature) is August (95.5°F).
The months with the lowest average high temperature are January and December (54.5°F).

  • Average low temperature in December: 39.2°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 (37.4°F).

Average pressure in December
Runaway Bay, TX

Average pressure in December - Runaway Bay, 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 (29.89"Hg).

Average wind speed in December
Runaway Bay, TX

Average wind speed in December - Runaway Bay, TX
  • Average wind speed in December: 8.8mph

The windiest month (with the highest average wind speed) is April (11mph).
The calmest month (with the lowest average wind speed) is September (7.2mph).

Average humidity in December
Runaway Bay, TX

Average humidity in December - Runaway Bay, TX
  • Average humidity in December: 66%

The month with the highest relative humidity is May (73%).
The month with the lowest relative humidity is August (55%).

Average rainfall in December
Runaway Bay, TX

Average rainfall in December - Runaway Bay, TX
  • Average rainfall in December: 1.26"

The wettest month (with the highest rainfall) is October (3.23").
The driest month (with the least rainfall) is January (1.22").

Average rainfall days in December
Runaway Bay, TX

Average rainfall days in December - Runaway Bay, TX
  • Average rainfall days in December: 7.4 days

The month with the highest number of rainy days is May (14.5 days).
The month with the least rainy days is January (5.7 days).

Average snowfall in December
Runaway Bay, TX

Average snowfall in December - Runaway Bay, TX
  • Average snowfall in December: 0.24"

The month with the highest snowfall is February (0.91").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in December
Runaway Bay, TX

Average snowfall days in December - Runaway Bay, TX
  • Average snowfall days in December: 0.7 days

The month with the highest number of snowfall days is February (1.7 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
Runaway Bay, TX

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

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in December: 6h and 0min

The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).

Average sunshine days in December
Runaway Bay, TX

Average sunshine days in December - Runaway Bay, TX
  • Average sunshine days in December: 21.7 days

The month with the most sunshine days is January (23.6 days).
The month with the least sunshine days is May (13.4 days).

Average UV index in December
Runaway Bay, TX

Average UV index in December - Runaway Bay, TX
  • Average UV index in December: 3

The months with the highest UV index are 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
Runaway Bay, TX

Average cloud cover in December - Runaway Bay, TX
  • Average cloud cover in December: 32

The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is August (Cloud cover 18).

Average visibility in December
Runaway Bay, TX

Average visibility in December - Runaway Bay, 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).

Runaway Bay, Texas, USA

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