December weather forecastRosales, Mexico
December
Weather in December
December, the first month of the winter in Rosales, is still a comfortable month, with temperature in the range of an average low of 7.2°C (45°F) and an average high of 18.8°C (65.8°F).Temperature
With the arrival of December, Rosales experiences a modest decline in average high-temperatures, transitioning from a pleasant 22.3°C (72.1°F) in November to a refreshing 18.8°C (65.8°F). Rosales experiences an average low-temperature of 7.2°C (45°F) in the month of December.Humidity
The average relative humidity in December is 41%.Rainfall
In December, the rain falls for 2.5 days. Throughout December, 9mm (0.35") of precipitation is accumulated. Throughout the year, in Rosales, there are 69.1 rainfall days, and 189mm (7.44") of precipitation is accumulated.Snowfall
December is the only month when snow falls in Rosales. The month with the most snowfall is December, when snow falls for 0.1 days and typically aggregates up to 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 December in Rosales, sunrise is at 6:37 am and sunset at 5:05 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 5:17 pm MST.
Sunshine
In Rosales, the average sunshine in December is 7.5h.UV index
The months with the lowest UV index are January, November and December, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index, 4 during December, leads to the following recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Rosales, Mexico
- Average high temperature in December: 18.8°C
The warmest month (with the highest average high temperature) is June (34.8°C).
The month with the lowest average high temperature is January (18.5°C).
- Average low temperature in December: 7.2°C
The months with the highest average low temperature are June and July (23.3°C).
The coldest month (with the lowest average low temperature) is January (6.6°C).
Average pressure in December
Rosales, Mexico
- Average pressure in December: 1017.5mbar
The month with the highest atmospheric pressure is January (1018.7mbar).
The month with the lowest atmospheric pressure is May (1011.7mbar).
Average wind speed in December
Rosales, Mexico
- Average wind speed in December: 9.5km/h
The windiest month (with the highest average wind speed) is April (13.3km/h).
The calmest months (with the lowest average wind speed) are September and October (8.7km/h).
Average humidity in December
Rosales, Mexico
- Average humidity in December: 41%
The month with the highest relative humidity is September (51%).
The month with the lowest relative humidity is May (21%).
Average rainfall in December
Rosales, Mexico
- Average rainfall in December: 9mm
The wettest months (with the highest rainfall) are July and September (40mm).
The driest month (with the least rainfall) is February (1mm).
Average rainfall days in December
Rosales, Mexico
- Average rainfall days in December: 2.5 days
The month with the highest number of rainy days is September (13.5 days).
The month with the least rainy days is February (1.4 days).
Average snowfall in December
Rosales, 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
Rosales, Mexico
- Average snowfall days in December: 0.1 days
The months with the highest number of snowfall days are January, October, November and December (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Rosales, Mexico
- Average daylight in December: 10h and 24min
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: 7h and 30min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The months with the least sunshine are January and November (Average sunshine: 7h and 24min).
Average sunshine days in December
Rosales, Mexico
- Average sunshine days in December: 28 days
The month with the most sunshine days is March (28.3 days).
The month with the least sunshine days is September (14.6 days).
Average UV index in December
Rosales, Mexico
- Average UV index in December: 4
The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January, November and December (UV index 4).
Average cloud cover in December
Rosales, Mexico
- Average cloud cover in December: 12
The month with the most cloud cover is September (Cloud cover 23).
The month with the least cloud cover is May (Cloud cover 9).
Average visibility in December
Rosales, 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).





