December weather forecast
O'Donnell, TX

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Weather in December

December, the first month of the winter in O'Donnell, is still a cool month, with temperature in the range of an average high of 53.6°F (12°C) and an average low of 36.7°F (2.6°C).

Temperature

December stands out as O'Donnell's coldest month, with temperatures ranging between an average high of 53.6°F (12°C) and a low of 36.7°F (2.6°C).

Humidity

In O'Donnell, the average relative humidity in December is 52%.

Rainfall

In O'Donnell, in December, it is raining for 3.2 days, with typically 0.47" (12mm) of accumulated precipitation. Throughout the year, in O'Donnell, there are 81.8 rainfall days, and 12.09" (307mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March, October through December. In O'Donnell, during December, snow falls for 2.5 days and regularly aggregates up to 0.75" (19mm) of snow. Throughout the year, there are 7.2 snowfall days, and 3.66" (93mm) of snow is accumulated.

Daylight

The month with the shortest days in O'Donnell is December, with an average of 10h and 0min of daylight.
On the first day of December, sunrise is at 7:32 am and sunset at 5:40 pm. On the last day of the month, sunrise is at 7:50 am and sunset at 5:51 pm CST.

Sunshine

With an average of 6.7h of sunshine, December has the least sunshine of the year.

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 health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: During December, 3 as the daily maximum UV index converts into the following advice:
Ensure safety - Imperative it is to shield skin and eyes from damage. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Updated: Jun 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 in O'Donnell?

December stands out as O'Donnell's coldest month, with an average high-temperature of 53.6°F (12°C) and a low-temperature of 36.7°F (2.6°C).

What are December temperatures?

The average high-temperature and low-temperature during December are 53.6°F (12°C) and 36.7°F (2.6°C) respectively. The average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in September is estimated at 86°F (30°C).

What is the average humidity in December?

In December, the average relative humidity is 52%.

How many days does it rain in December?

In December, the rain falls for 3.2 days. Throughout December, 0.47" (12mm) of precipitation is accumulated.

How many days does it snow in December?

In December, it is snowing for 2.5 days. Throughout December, 0.75" (19mm) of snow is accumulated.

What is the month with the shortest days?

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

How many hours of daylight does O'Donnell have in December?

In O'Donnell, the average day length in December is 10h and 1min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:32 am and sunset at 5:40 pm. On the last day of the month, sunrise is at 7:50 am and sunset at 5:51 pm CST.

What is the month with the least sunshine?

December has the least sunshine of the year, with an average of 6.7h of sunshine.

How long on average sun shines in December?

In O'Donnell, the average sunshine duration in December is 6.7h.

When is the lowest UV index?

The month with the lowest UV index is 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 reading of 3 to 5 represents 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
O'Donnell, TX

Average temperature in December - O
  • Average high temperature in December: 53.6°F

The warmest month (with the highest average high temperature) is August (93°F).
The month with the lowest average high temperature is December (53.6°F).

  • Average low temperature in December: 36.7°F

The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).

Average pressure in December
O'Donnell, TX

Average pressure in December - O
  • 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
O'Donnell, TX

Average wind speed in December - O
  • Average wind speed in December: 10.6mph

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
O'Donnell, TX

Average humidity in December - O
  • Average humidity in December: 52%

The month with the highest relative humidity is September (56%).
The month with the lowest relative humidity is April (39%).

Average rainfall in December
O'Donnell, TX

Average rainfall in December - O
  • Average rainfall in December: 0.47"

The wettest month (with the highest rainfall) is September (2.09").
The driest month (with the least rainfall) is February (0.35").

Average rainfall days in December
O'Donnell, TX

Average rainfall days in December - O
  • Average rainfall days in December: 3.2 days

The month with the highest number of rainy days is September (12 days).
The month with the least rainy days is January (2.8 days).

Average snowfall in December
O'Donnell, TX

Average snowfall in December - O
  • Average snowfall in December: 0.75"

The month with the highest snowfall is February (1.46").
The months with the least snowfall are April, May, June, July, August and September (0").

Average snowfall days in December
O'Donnell, TX

Average snowfall days in December - O
  • Average snowfall days in December: 2.5 days

The month with the highest number of snowfall days is December (2.5 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
O'Donnell, TX

Average daylight in December / Average sunshine in December - O
  • 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 4min

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

Average sunshine days in December
O'Donnell, TX

Average sunshine days in December - O
  • Average sunshine days in December: 25.3 days

The month with the most sunshine days is January (27.3 days).
The month with the least sunshine days is September (15.5 days).

Average UV index in December
O'Donnell, TX

Average UV index in December - O
  • Average UV index in December: 3

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 3).

Average cloud cover in December
O'Donnell, TX

Average cloud cover in December - O
  • 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
O'Donnell, TX

Average visibility in December - O
  • 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).

O'Donnell, Texas, USA

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