December weather forecast
Alto, TX

Share

Weather in December

December, the first month of the winter in Alto, is still a mild month, with an average temperature varying between 42.6°F (5.9°C) and 57.9°F (14.4°C).

Temperature

December ushers in a minute temperature change, with average high-temperatures reducing from November's comfortable 66.2°F (19°C) to a mild 57.9°F (14.4°C). An average low-temperature of 42.6°F (5.9°C) is recorded during the nights in December in Alto.

Humidity

In December, the average relative humidity is 81%.

Rainfall

In December, the rain falls for 12.6 days. Throughout December, 3.07" (78mm) of precipitation is accumulated. In Alto, during the entire year, the rain falls for 159.2 days and collects up to 35.12" (892mm) of precipitation.

Snowfall

Months with snowfall in Alto are January through March and December. December is the first month it typically snows in Alto. Throughout December, in the average 0.2 snowfall days, it receives 0.04" (1mm) of snow. In Alto, during the entire year, snow falls for 1.5 days and aggregates up to 0.43" (11mm) of snow.

Daylight

December has the shortest days of the year, with an average of 10h and 6min of daylight.
On the first day of December in Alto, sunrise is at 7:02 am and sunset at 5:16 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 5:27 pm CST.

Sunshine

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

UV index

The month with the lowest UV index in Alto, Texas, is December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: During December, 2 as the daily maximum UV index converts into the following advice:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
[Resources]

Frequently asked questions

What are December temperatures in Alto?

The high-temperature, in December, in Alto, is 57.9°F (14.4°C), while the low-temperature averages to 42.6°F (5.9°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in September is calculated to be 104°F (40°C).

What is the average humidity in December in Alto?

In December, the average relative humidity in Alto, Texas, is 81%.

How much does it rain in Alto in December?

In Alto, in December, it is raining for 12.6 days, with typically 3.07" (78mm) of accumulated precipitation.

When does it start snowing in Alto?

December is the first month it typically snows in Alto, Texas. Throughout December, in the average 0.2 snowfall days, it receives 0.04" (1mm) of snow.

What is the month with the shortest days in Alto?

The month with the shortest days is December, with an average of 10h and 6min of daylight.

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

In December, the average day length in Alto, Texas, is 10h and 8min.

What time are sunrise and sunset in December in Alto?

In December, on the first day of the month, sunrise is at 7:02 am and sunset at 5:16 pm. On the last day of the month, in Alto, sunrise is at 7:19 am and sunset at 5:27 pm CST.

What is the month with the least sunshine in Alto?

The month with the least sunshine in Alto is December, with an average of 4.9h of sunshine.

How many hours of sunshine does Alto have in December?

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

When is the lowest UV index in Alto?

The month with the lowest UV index in Alto, Texas, is December, with an average maximum UV index of 2.

What is the UV index reading in December in Alto?

In December, the average daily maximum UV index in Alto, Texas, is 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's 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
Alto, TX

Average temperature in December - Alto, TX
  • Average high temperature in December: 57.9°F

The warmest month (with the highest average high temperature) is August (95.5°F).
The month with the lowest average high temperature is January (55.9°F).

  • Average low temperature in December: 42.6°F

The months with the highest average low temperature are July and August (73°F).
The coldest month (with the lowest average low temperature) is January (39.2°F).

[Resources]

Average pressure in December
Alto, TX

Average pressure in December - Alto, TX
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

[Resources]

Average wind speed in December
Alto, TX

Average wind speed in December - Alto, TX
  • Average wind speed in December: 6mph

The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest months (with the lowest average wind speed) are July, August and September (4.8mph).

[Resources]

Average humidity in December
Alto, TX

Average humidity in December - Alto, TX
  • Average humidity in December: 81%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is August (69%).

[Resources]

Average rainfall in December
Alto, TX

Average rainfall in December - Alto, TX
  • Average rainfall in December: 3.07"

The wettest month (with the highest rainfall) is May (3.74").
The driest month (with the least rainfall) is November (2.24").

[Resources]

Average rainfall days in December
Alto, TX

Average rainfall days in December - Alto, TX
  • Average rainfall days in December: 12.6 days

The months with the highest number of rainy days are March and June (14.5 days).
The month with the least rainy days is November (11 days).

[Resources]

Average snowfall in December
Alto, TX

Average snowfall in December - Alto, TX
  • Average snowfall in December: 0.04"

The month with the highest snowfall is January (0.24").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

[Resources]

Average snowfall days in December
Alto, TX

Average snowfall days in December - Alto, TX
  • Average snowfall days in December: 0.2 days

The month with the highest number of snowfall days is January (0.6 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

[Resources]

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

Average daylight in December / Average sunshine in December - Alto, TX
  • Average daylight in December: 10h and 1min

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

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).

[Resources]

Average sunshine days in December
Alto, TX

Average sunshine days in December - Alto, TX
  • Average sunshine days in December: 16.2 days

The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is February (12.3 days).

[Resources]

Average UV index in December
Alto, TX

Average UV index in December - Alto, TX
  • Average UV index in December: 2

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 2).

[Resources]

Average cloud cover in December
Alto, TX

Average cloud cover in December - Alto, TX
  • Average cloud cover in December: 49

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 31).

[Resources]

Average visibility in December
Alto, TX

Average visibility in December - Alto, TX
  • Average visibility in December: 5mi

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

[Resources]

Alto, Texas, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location