December weather forecastBlanco, TX

December

Weather in December

The first month of the winter, December, is still a refreshing month in Blanco, Texas, with an average temperature ranging between max 59.2°F (15.1°C) and min 43.2°F (6.2°C).

Temperature

During the shift to December, Blanco records a mild decrease in average high-temperature, moving from an enjoyable 66.7°F (19.3°C) in November to a moderate 59.2°F (15.1°C). Throughout December, the nighttime temperature in Blanco, Texas, averages to a frosty 43.2°F (6.2°C).

Humidity

In December, the average relative humidity is 70%.

Rainfall

In December, in Blanco, the rain falls for 9.9 days. Throughout December, 1.22" (31mm) of precipitation is accumulated. Throughout the year, in Blanco, Texas, there are 149 rainfall days, and 24.92" (633mm) of precipitation is accumulated.

Snowfall

March through October and December are months without snowfall in Blanco, Texas.

Daylight

With an average of 10h and 12min of daylight, December has the shortest days of the year in Blanco.
On the first day of the month, sunrise is at 7:12 am and sunset at 5:33 pm. On the last day of December, sunrise is at 7:29 am and sunset at 5:44 pm CST.

Sunshine

The months with the least sunshine in Blanco are November and December, with an average of 5.5h of sunshine.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, the maximum UV index of 3 translates into these guidelines:
Make use of precautions - It is urged to ward off sun damage. The solar radiation around mid-day is intense; avoid the Sun and stay safe. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature in Blanco, Texas, during December is 59.2°F (15.1°C) and the low-temperature is 43.2°F (6.2°C). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is computed to be 96.8°F (36°C).

In Blanco, the average relative humidity in December is 70%.

In December, in Blanco, the rain falls for 9.9 days. Throughout December, 1.22" (31mm) of precipitation is accumulated.

March through October and December are months without snowfall in Blanco.

In December, in Blanco, it doesn't snow. November is the latest month when it typically snows.

With an average of 10h and 12min of daylight, December has the shortest days of the year in Blanco, Texas.

In Blanco, Texas, the average day length in December is 10h and 15min.

On the first day of December in Blanco, sunrise is at 7:12 am and sunset at 5:33 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:44 pm CST.

The months with the least sunshine are November and December, with an average of 5.5h of sunshine.

In December, the average sunshine duration is 5.5h.

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

The average daily maximum UV index in December in Blanco is 3. A UV Index of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to 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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Blanco, TX

  • Average high temperature in December: 59.2°F

The warmest month (with the highest average high temperature) is August (93.9°F).
The month with the lowest average high temperature is January (58.6°F).

  • Average low temperature in December: 43.2°F

The month with the highest average low temperature is August (72.9°F).
The coldest month (with the lowest average low temperature) is January (41.4°F).

Average pressure in December
Blanco, 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 (29.9"Hg).

Average wind speed in December
Blanco, TX

  • Average wind speed in December: 8.6mph

The windiest month (with the highest average wind speed) is March (10.1mph).
The calmest month (with the lowest average wind speed) is September (6.6mph).

Average humidity in December
Blanco, TX

  • Average humidity in December: 70%

The month with the highest relative humidity is May (76%).
The month with the lowest relative humidity is August (61%).

Average rainfall in December
Blanco, TX

  • Average rainfall in December: 1.22"

The wettest month (with the highest rainfall) is May (4.13").
The driest month (with the least rainfall) is February (1.18").

Average rainfall days in December
Blanco, TX

  • Average rainfall days in December: 9.9 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (8.9 days).

Average snowfall in December
Blanco, TX

  • Average snowfall in December: 0"

The month with the highest snowfall is February (0.2").
The months with the least snowfall are March, April, May, June, July, August, September, October and December (0").

Average snowfall days in December
Blanco, TX

  • Average snowfall days in December: 0.2 days

The month with the highest number of snowfall days is February (0.7 days).
The months with the least snowfall days are March, April, May, June, July, August, September and October (0 days).

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

  • Average daylight in December: 10h and 12min

The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).

  • Average sunshine in December: 5h and 30min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The months with the least sunshine are November and December (Average sunshine: 5h and 30min).

Average sunshine days in December
Blanco, TX

  • Average sunshine days in December: 19 days

The month with the most sunshine days is January (21.1 days).
The months with the least sunshine days are May and September (11.1 days).

Average UV index in December
Blanco, TX

  • Average UV index in December: 3

The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).

Average cloud cover in December
Blanco, TX

  • Average cloud cover in December: 39

The month with the most cloud cover is May (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 24).

Average visibility in December
Blanco, 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).