Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
Piedras Negras in December experiences a gentle temperature dip, with average high-temperatures reducing from an agreeable 22.3°C (72.1°F) in November to a comfortable 18.5°C (65.3°F). During the month of December, an average temperature of 9.2°C (48.6°F) is noted during the nights.Humidity
In December, the average relative humidity is 59%.Rainfall
In Piedras Negras, in December, during 5.2 rainfall days, 11mm (0.43") of precipitation is typically accumulated. Throughout the year, in Piedras Negras, there are 89.7 rainfall days, and 341mm (13.43") of precipitation is accumulated.Snowfall
The only month with snowfall in Piedras Negras is December. December is the month with the most snowfall. Snow falls for 0.1 days and accumulates 1mm (0.04") of snow.Daylight
With an average of 10h and 24min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:18 am and sunset at 5:44 pm. On the last day of December, in Piedras Negras, sunrise is at 7:34 am and sunset at 5:56 pm CST.
Sunshine
In December, the average sunshine is 6.1h.UV index
January and December, with an average maximum UV index of 4, are months with the lowest UV index in Piedras Negras. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: The UV index of 4 during December leads to these advisories:
Put precautions into practice - Protective measures against sun-induced damage are advised. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Frequently asked questions
What is the usual temperature for Piedras Negras in December?
What is the average humidity in December in Piedras Negras?
How much does it rain in Piedras Negras in December?
When does it snow the most in Piedras Negras?
When does it start snowing in Piedras Negras?
What is the month with the shortest days in Piedras Negras?
What is the average length of the day in December in Piedras Negras?
What time are sunrise and sunset in December in Piedras Negras?
How long on average sun shines in December in Piedras Negras?
What are the months with the lowest UV index in Piedras Negras?
What is the UV index intensity in December in Piedras Negras?
Average temperature in December
Piedras Negras, Mexico
- Average high temperature in December: 18.5°C
The warmest month (with the highest average high temperature) is August (37.2°C).
The month with the lowest average high temperature is January (18.3°C).
- Average low temperature in December: 9.2°C
The month with the highest average low temperature is August (26.3°C).
The coldest month (with the lowest average low temperature) is January (8.3°C).
Average pressure in December
Piedras Negras, Mexico
- Average pressure in December: 1019.3mbar
The month with the highest atmospheric pressure is January (1020.7mbar).
The month with the lowest atmospheric pressure is May (1011.6mbar).
Average wind speed in December
Piedras Negras, Mexico
- Average wind speed in December: 12.4km/h
The windiest month (with the highest average wind speed) is June (18.8km/h).
The calmest month (with the lowest average wind speed) is December (12.4km/h).
Average humidity in December
Piedras Negras, Mexico
- Average humidity in December: 59%
The month with the highest relative humidity is November (60%).
The month with the lowest relative humidity is August (47%).
Average rainfall in December
Piedras Negras, Mexico
- Average rainfall in December: 11mm
The wettest month (with the highest rainfall) is May (75mm).
The driest months (with the least rainfall) are January and February (8mm).
Average rainfall days in December
Piedras Negras, Mexico
- Average rainfall days in December: 5.2 days
The month with the highest number of rainy days is September (13.8 days).
The month with the least rainy days is January (4.3 days).
Average snowfall in December
Piedras Negras, Mexico
- Average snowfall in December: 1mm
The month with the highest snowfall is December (1mm).
The months with the least snowfall are January, February, March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Piedras Negras, Mexico
- Average snowfall days in December: 0.1 days
The months with the highest number of snowfall days are January, February and December (0.1 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Piedras Negras, Mexico
- 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: 6h and 1min
The month with the most sunshine is June (Average sunshine: 11h and 6min).
The month with the least sunshine is November (Average sunshine: 6h and 0min).
Average sunshine days in December
Piedras Negras, Mexico
- Average sunshine days in December: 24.4 days
The month with the most sunshine days is January (25.6 days).
The month with the least sunshine days is September (14.7 days).
Average UV index in December
Piedras Negras, Mexico
- Average UV index in December: 4
The months with the highest UV index are June, July and August (UV index 8).
The months with the lowest UV index are January and December (UV index 4).
Average cloud cover in December
Piedras Negras, Mexico
- Average cloud cover in December: 29
The month with the most cloud cover is May (Cloud cover 32).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in December
Piedras Negras, 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).
Piedras Negras, Mexico
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