December weather forecast
Dilley, TX

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Weather in December

December, the first month of the winter in Dilley, is also an enjoyable month, with temperature in the range of an average high of 64.9°F (18.3°C) and an average low of 48.6°F (9.2°C).

Temperature

As Dilley enters December, the average high-temperature subtly lowers from the a pleasant 72.3°F (22.4°C) of November to a comfortable 64.9°F (18.3°C). Dilley experiences a nighttime temperature average of 48.6°F (9.2°C) during December.

Humidity

December is the most humid month, with an average relative humidity of 67%.

Rainfall

In Dilley, in December, during 7.2 rainfall days, 0.55" (14mm) of precipitation is typically accumulated. Throughout the year, in Dilley, Texas, there are 108.4 rainfall days, and 12.48" (317mm) of precipitation is accumulated.

Snowfall

February through October and December are months without snowfall.

Daylight

December has the shortest days of the year in Dilley, with an average of 10h and 24min of daylight.
On the first day of December, sunrise is at 7:12 am and sunset at 5:39 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:50 pm CST.

Sunshine

With an average of 5.6h of sunshine, December has the least sunshine of the year.

UV index

December is the month with the lowest UV index in Dilley, Texas, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In December, an average UV index of 3 transforms into the following instructions:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
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Frequently asked questions

What are December temperatures in Dilley?

The average high-temperature and low-temperature in Dilley during December are 64.9°F (18.3°C) and 48.6°F (9.2°C) respectively. In October, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, is estimated at 87.8°F (31°C).

What is the most humid month in Dilley?

With an average relative humidity of 67%, December is the most humid month in Dilley.

What is the average humidity in December in Dilley?

In December, the average relative humidity in Dilley, Texas, is 67%.

How much does it rain in Dilley in December?

In Dilley, in December, it is raining for 7.2 days, with typically 0.55" (14mm) of accumulated precipitation.

When it does not snow in Dilley?

February through October and December are months without snowfall in Dilley, Texas.

Does it snow in Dilley in December?

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

What is the month with the shortest days in Dilley?

The month with the shortest days is December, with an average of 10h and 24min of daylight.

What is the average length of the day in December in Dilley?

In Dilley, Texas, the average day length in December is 10h and 21min.

What time are sunrise and sunset in December in Dilley?

In December, on the first day of the month, sunrise is at 7:12 am and sunset at 5:39 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:50 pm CST.

What is the month with the least sunshine in Dilley?

The month with the least sunshine in Dilley, Texas, is December, with an average of 5.6h of sunshine.

How long on average sun shines in December in Dilley?

In December, the average sunshine duration in Dilley, Texas, is 5.6h.

When is the lowest UV index in Dilley?

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

What is the UV index reading in December in Dilley?

In December, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a medium health risk from exposure to Sun's UV rays.
Average humidity
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
Dilley, TX

Average temperature in December - Dilley, TX
  • Average high temperature in December: 64.9°F

The warmest month (with the highest average high temperature) is August (99°F).
The month with the lowest average high temperature is January (64.2°F).

  • Average low temperature in December: 48.6°F

The month with the highest average low temperature is August (78.1°F).
The coldest month (with the lowest average low temperature) is January (46.9°F).

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Average pressure in December
Dilley, TX

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

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

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Average wind speed in December
Dilley, TX

Average wind speed in December - Dilley, TX
  • Average wind speed in December: 7.3mph

The windiest month (with the highest average wind speed) is May (10.5mph).
The calmest month (with the lowest average wind speed) is December (7.3mph).

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Average humidity in December
Dilley, TX

Average humidity in December - Dilley, TX
  • Average humidity in December: 67%

The month with the highest relative humidity is December (67%).
The month with the lowest relative humidity is August (53%).

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Average rainfall in December
Dilley, TX

Average rainfall in December - Dilley, TX
  • Average rainfall in December: 0.55"

The wettest month (with the highest rainfall) is May (2.2").
The driest month (with the least rainfall) is January (0.47").

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Average rainfall days in December
Dilley, TX

Average rainfall days in December - Dilley, TX
  • Average rainfall days in December: 7.2 days

The month with the highest number of rainy days is September (14.7 days).
The month with the least rainy days is January (6.7 days).

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Average snowfall in December
Dilley, TX

Average snowfall in December - Dilley, TX
  • Average snowfall in December: 0"

The months with the highest snowfall are January and November (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and December (0").

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Average snowfall days in December
Dilley, TX

Average snowfall days in December - Dilley, TX
  • Average snowfall days in December: 0.1 days

The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Dilley, TX
  • Average daylight in December: 10h and 2min

The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).

  • Average sunshine in December: 5h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).

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Average sunshine days in December
Dilley, TX

Average sunshine days in December - Dilley, TX
  • Average sunshine days in December: 22.1 days

The month with the most sunshine days is January (23.2 days).
The month with the least sunshine days is September (14.2 days).

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Average UV index in December
Dilley, TX

Average UV index in December - Dilley, 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).

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Average cloud cover in December
Dilley, TX

Average cloud cover in December - Dilley, TX
  • Average cloud cover in December: 37

The months with the most cloud cover are March and May (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 18).

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Average visibility in December
Dilley, TX

Average visibility in December - Dilley, 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).

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Dilley, Texas, USA

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