December weather forecast
Sealy, TX

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Weather in December

The first month of the winter, December, is still a comfortable month in Sealy, Texas, with an average temperature varying between 61.9°F (16.6°C) and 47.5°F (8.6°C).

Temperature

The transition into December subtly indicates a reduction in the average high-temperature, down to a refreshing 61.9°F (16.6°C) from November's agreeable 69.6°F (20.9°C). Sealy encounters an average low-temperature of 47.5°F (8.6°C) during December nights.

Humidity

The average relative humidity in December is 77%.

Rainfall

In Sealy, in December, it is raining for 13.7 days, with typically 2.6" (66mm) of accumulated precipitation. In Sealy, during the entire year, the rain falls for 176.6 days and collects up to 32.2" (818mm) of precipitation.

Snowfall

Months with snowfall in Sealy are January and December. December is the first month it typically snows. Throughout December, in the average 0.1 snowfall days, it receives 0.08" (2mm) of snow. Throughout the year, in Sealy, there are 0.7 snowfall days, and 0.2" (5mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 10h and 18min of daylight.
On the first day of December in Sealy, sunrise is at 7:02 am and sunset at 5:24 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 5:36 pm CST.

Sunshine

With an average of 4.9h of sunshine, December has the least sunshine of the year in Sealy.

UV index

The month with the lowest UV index in Sealy is December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum UV index, 3 during December, leads to the following recommendations:
Take measures. Individuals with light skin might experience burns in under 30 minutes. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
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Frequently asked questions

What are December temperatures in Sealy?

In Sealy, in December, the average high-temperature is 61.9°F (16.6°C), and the average low-temperature is 47.5°F (8.6°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in September is estimated at 104°F (40°C).

What is the average humidity in December in Sealy?

In December, the average relative humidity is 77%.

How many days does it rain in December in Sealy?

In December, the rain falls for 13.7 days. Throughout December, 2.6" (66mm) of precipitation is accumulated.

When does it start snowing in Sealy?

December is the first month it typically snows in Sealy, Texas. Throughout December, in the average 0.1 snowfall days, it receives 0.08" (2mm) of snow.

What is the month with the shortest days in Sealy?

December has the shortest days of the year, with an average of 10h and 18min of daylight.

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

In December, the average day length is 10h and 16min.

When are sunrise and sunset in December in Sealy?

On the first day of December in Sealy, Texas, sunrise is at 7:02 am and sunset at 5:24 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 5:36 pm CST.

What is the month with the least sunshine in Sealy?

December has the least sunshine of the year in Sealy, Texas, with an average of 4.9h of sunshine.

How long on average sun shines in December in Sealy?

In December, the average sunshine duration in Sealy, Texas, is 4.9h.

What is the month with the lowest UV index in Sealy?

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

How high is the UV index in December in Sealy?

In December, the average daily maximum UV index in Sealy, Texas, is 3. A UV Index reading of 3 to 5 represents a moderate health threat from unprotected exposure to UV radiation.
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
Sealy, TX

Average temperature in December - Sealy, TX
  • Average high temperature in December: 61.9°F

The warmest month (with the highest average high temperature) is August (94.6°F).
The month with the lowest average high temperature is January (60.8°F).

  • Average low temperature in December: 47.5°F

The month with the highest average low temperature is August (75.2°F).
The coldest month (with the lowest average low temperature) is January (44.6°F).

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Average pressure in December
Sealy, TX

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in December
Sealy, TX

Average wind speed in December - Sealy, TX
  • Average wind speed in December: 7.8mph

The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is September (5.7mph).

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Average humidity in December
Sealy, TX

Average humidity in December - Sealy, TX
  • Average humidity in December: 77%

The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is August (71%).

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Average rainfall in December
Sealy, TX

Average rainfall in December - Sealy, TX
  • Average rainfall in December: 2.6"

The wettest month (with the highest rainfall) is May (4.33").
The driest month (with the least rainfall) is February (1.69").

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Average rainfall days in December
Sealy, TX

Average rainfall days in December - Sealy, TX
  • Average rainfall days in December: 13.7 days

The month with the highest number of rainy days is September (18.5 days).
The month with the least rainy days is January (11.9 days).

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Average snowfall in December
Sealy, TX

Average snowfall in December - Sealy, TX
  • Average snowfall in December: 0.08"

The month with the highest snowfall is January (0.12").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in December
Sealy, TX

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

The month with the highest number of snowfall days is January (0.4 days).
The months with the least snowfall days are March, April, May, June, July, August, October and November (0 days).

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

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

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

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).

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Average sunshine days in December
Sealy, TX

Average sunshine days in December - Sealy, TX
  • Average sunshine days in December: 15 days

The month with the most sunshine days is January (17.3 days).
The month with the least sunshine days is June (9.3 days).

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Average UV index in December
Sealy, TX

Average UV index in December - Sealy, 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).

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Average cloud cover in December
Sealy, TX

Average cloud cover in December - Sealy, TX
  • Average cloud cover in December: 48

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 30).

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Average visibility in December
Sealy, TX

Average visibility in December - Sealy, TX
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, August, September, October, November and December (6mi).
The months with the lowest visibility are March, April, May, June and July (5mi).

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Sealy, Texas, USA

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