December weather forecastRio Rico, Mexico

December

Weather in December

The first month of the winter, December, is still a pleasant month in Rio Rico, Mexico, with an average temperature fluctuating between 13.5°C (56.3°F) and 21.8°C (71.2°F).

Temperature

The beginning of December subtly marks a decrease in the average high-temperature, transitioning from a warm 25.2°C (77.4°F) in November to an agreeable 21.8°C (71.2°F). Throughout December, Rio Rico's nights cool down to an average of 13.5°C (56.3°F).

Humidity

The average relative humidity in December is 69%.

Rainfall

In Rio Rico, during December, the rain falls for 8.3 days and regularly aggregates up to 21mm (0.83") of precipitation. In Rio Rico, during the entire year, the rain falls for 102.8 days and collects up to 330mm (12.99") of precipitation.

Snowfall

In Rio Rico, snow does not fall in February through December.

Daylight

The month with the shortest days is December, with an average of 10h and 30min of daylight.
On the first day of December, sunrise is at 7:02 am and sunset at 5:39 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 5:51 pm CST.

Sunshine

With an average of 5.2h of sunshine, December has the least sunshine of the year.

UV index

With an average maximum UV index of 4, December is the month with the lowest UV index. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: An average UV index of 4 in December transforms into this advice:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.

Frequently asked questions

In December, the average high-temperature and low-temperature are 21.8°C (71.2°F) and 13.5°C (56.3°F) respectively. The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, in October is computed to be 35°C (95°F).

The average relative humidity in December is 69%.

In Rio Rico, in December, during 8.3 rainfall days, 21mm (0.83") of precipitation is typically accumulated.

February through December are months without snowfall in Rio Rico.

In Rio Rico, in December, it doesn't snow. In January, it regularly snows.

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

In Rio Rico, the average day length in December is 10h and 32min.

On the first day of December, sunrise is at 7:02 am and sunset at 5:39 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 5:51 pm CST.

With an average of 5.2h of sunshine, December has the least sunshine of the year.

In December, the average sunshine duration is 5.2h.

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

In Rio Rico, the average daily maximum UV index in December is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from unsafe 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
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Rio Rico, Mexico

  • Average high temperature in December: 21.8°C

The warmest month (with the highest average high temperature) is August (36.6°C).
The month with the lowest average high temperature is January (20.9°C).

  • Average low temperature in December: 13.5°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 (12.3°C).

Average pressure in December
Rio Rico, Mexico

  • Average pressure in December: 1018.2mbar

The month with the highest atmospheric pressure is January (1019.9mbar).
The month with the lowest atmospheric pressure is June (1011.5mbar).

Average wind speed in December
Rio Rico, Mexico

  • Average wind speed in December: 15.2km/h

The windiest month (with the highest average wind speed) is May (18.9km/h).
The calmest month (with the lowest average wind speed) is September (13.7km/h).

Average humidity in December
Rio Rico, Mexico

  • Average humidity in December: 69%

The month with the highest relative humidity is May (71%).
The month with the lowest relative humidity is August (61%).

Average rainfall in December
Rio Rico, Mexico

  • Average rainfall in December: 21mm

The wettest months (with the highest rainfall) are July and September (51mm).
The driest month (with the least rainfall) is February (11mm).

Average rainfall days in December
Rio Rico, Mexico

  • Average rainfall days in December: 8.3 days

The month with the highest number of rainy days is September (14.4 days).
The month with the least rainy days is July (6.4 days).

Average snowfall in December
Rio Rico, Mexico

  • Average snowfall in December: 0mm

The month with the highest snowfall is January (3mm).
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0mm).

Average snowfall days in December
Rio Rico, Mexico

  • Average snowfall days in December: 0 days

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

Average daylight in December /
Average sunshine in December
Rio Rico, Mexico

  • Average daylight in December: 10h and 30min

The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 30min).

  • Average sunshine in December: 5h and 12min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).

Average sunshine days in December
Rio Rico, Mexico

  • Average sunshine days in December: 21 days

The month with the most sunshine days is July (23.8 days).
The month with the least sunshine days is September (13.8 days).

Average UV index in December
Rio Rico, 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
Rio Rico, Mexico

  • Average cloud cover in December: 43

The month with the most cloud cover is December (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 20).

Average visibility in December
Rio Rico, 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).