December weather forecastVallecillo, Mexico

December

Weather in December

The first month of the winter, December, is still a pleasant month in Vallecillo, Mexico, with an average temperature ranging between max 21.3°C (70.3°F) and min 12°C (53.6°F).

Temperature

In Vallecillo, the beginning of December is marked by a marginally lowered average high-temperature, shifting from November's warm 24.6°C (76.3°F) to an agreeable 21.3°C (70.3°F). Vallecillo experiences a mean temperature of 12°C (53.6°F) during December nights.

Humidity

The average relative humidity in December is 61%.

Rainfall

In Vallecillo, Mexico, in December, during 6.3 rainfall days, 14mm (0.55") of precipitation is typically accumulated. In Vallecillo, during the entire year, the rain falls for 110 days and collects up to 415mm (16.34") of precipitation.

Snowfall

The only month with snowfall in Vallecillo is December. The month with the most snowfall days is December, when snow falls for 0.1 days.

Daylight

With an average of 10h and 30min of daylight, December has the shortest days of the year in Vallecillo.
On the first day of the month, sunrise is at 7:11 am and sunset at 5:46 pm. On the last day of December, sunrise is at 7:28 am and sunset at 5:58 pm CST.

Sunshine

November and December, with an average of 6.3h of sunshine, are months with the least sunshine in Vallecillo, Mexico.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.
Note: In December, the average maximum UV index of 4 translates into the following recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.

Frequently asked questions

The high-temperature, in December, in Vallecillo, records 21.3°C (70.3°F), while the low-temperature is 12°C (53.6°F). In October, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, is appraised at 33°C (91.4°F).

The average relative humidity in December in Vallecillo, Mexico, is 61%.

In December, in Vallecillo, Mexico, the rain falls for 6.3 days. Throughout December, 14mm (0.55") of precipitation is accumulated.

The month with the most snowfall days in Vallecillo is December, when snow falls for 0.1 days.

December is the first month it typically snows in Vallecillo. Throughout December, there are 0.1 snowfall days.

December has the shortest days of the year, with an average of 10h and 30min of daylight.

In December, the average day length in Vallecillo, Mexico, is 10h and 30min.

In December, on the first day of the month, sunrise is at 7:11 am and sunset at 5:46 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 5:58 pm CST.

The months with the least sunshine are November and December, with an average of 6.3h of sunshine.

The average sunshine duration in December in Vallecillo, Mexico, is 6.3h.

With an average maximum UV index of 4, December is the month with the lowest UV index in Vallecillo.

In December, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Vallecillo, Mexico

  • Average high temperature in December: 21.3°C

The warmest month (with the highest average high temperature) is August (37.3°C).
The month with the lowest average high temperature is January (20.5°C).

  • Average low temperature in December: 12°C

The month with the highest average low temperature is August (26°C).
The coldest month (with the lowest average low temperature) is January (11°C).

Average pressure in December
Vallecillo, Mexico

  • Average pressure in December: 1018.5mbar

The month with the highest atmospheric pressure is January (1020mbar).
The month with the lowest atmospheric pressure is May (1011.4mbar).

Average wind speed in December
Vallecillo, Mexico

  • Average wind speed in December: 13.2km/h

The windiest month (with the highest average wind speed) is July (20.7km/h).
The calmest month (with the lowest average wind speed) is December (13.2km/h).

Average humidity in December
Vallecillo, Mexico

  • Average humidity in December: 61%

The month with the highest relative humidity is September (63%).
The month with the lowest relative humidity is August (52%).

Average rainfall in December
Vallecillo, Mexico

  • Average rainfall in December: 14mm

The wettest month (with the highest rainfall) is September (96mm).
The driest months (with the least rainfall) are January and February (11mm).

Average rainfall days in December
Vallecillo, Mexico

  • Average rainfall days in December: 6.3 days

The month with the highest number of rainy days is September (16.7 days).
The month with the least rainy days is January (6 days).

Average snowfall days in December
Vallecillo, Mexico

  • Average snowfall days in December: 0.1 days

The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).

Average daylight in December /
Average sunshine in December
Vallecillo, Mexico

  • Average daylight in December: 10h and 30min

The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).

  • Average sunshine in December: 6h and 18min

The month with the most sunshine is June (Average sunshine: 11h and 18min).
The months with the least sunshine are November and December (Average sunshine: 6h and 18min).

Average sunshine days in December
Vallecillo, Mexico

  • Average sunshine days in December: 23.2 days

The month with the most sunshine days is January (23.3 days).
The month with the least sunshine days is September (11.7 days).

Average UV index in December
Vallecillo, Mexico

  • Average UV index in December: 4

The months with the highest UV index are July and August (UV index 8).
The month with the lowest UV index is December (UV index 4).

Average cloud cover in December
Vallecillo, Mexico

  • Average cloud cover in December: 30

The month with the most cloud cover is September (Cloud cover 32).
The month with the least cloud cover is August (Cloud cover 16).

Average visibility in December
Vallecillo, Mexico

  • Average visibility in December: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).