December weather forecastSecond Mesa, AZ
December
Weather in December
December, the first month of the winter in Second Mesa, is still a chilly month, with an average temperature ranging between min 28.2°F (-2.1°C) and max 43.9°F (6.6°C).Temperature
Second Mesa experiences a temperature shift at the start of December, with average high-temperatures adjusting from a fresh 55.2°F (12.9°C) in November to a frosty 43.9°F (6.6°C). An average low-temperature of 28.2°F (-2.1°C) is common during the nights of December.Humidity
The average relative humidity in December in Second Mesa is 57%.Rainfall
In Second Mesa, during December, the rain falls for 5.4 days and regularly aggregates up to 0.55" (14mm) of precipitation. Throughout the year, in Second Mesa, there are 57 rainfall days, and 4.92" (125mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. The month with the most snowfall is December, when snow falls for 4.1 days and typically aggregates up to 1.77" (45mm) of snow.Daylight
December has the shortest days of the year in Second Mesa, with an average of 9h and 48min of daylight.On the first day of the month, sunrise is at 7:14 am and sunset at 5:08 pm. On the last day of December, sunrise is at 7:31 am and sunset at 5:18 pm MST.
Sunshine
The month with the least sunshine is December, with an average of 7h of sunshine.UV index
The months with the lowest UV index in Second Mesa, Arizona, are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum high UV index of 2 in December translates into the following recommendations:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Second Mesa, AZ
- Average high temperature in December: 43.9°F
The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (43.7°F).
- Average low temperature in December: 28.2°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (28°F).
Average pressure in December
Second Mesa, AZ
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in December
Second Mesa, AZ
- Average wind speed in December: 5.8mph
The windiest month (with the highest average wind speed) is April (9.6mph).
The calmest month (with the lowest average wind speed) is January (5.4mph).
Average humidity in December
Second Mesa, AZ
- Average humidity in December: 57%
The month with the highest relative humidity is January (61%).
The month with the lowest relative humidity is June (18%).
Average rainfall in December
Second Mesa, AZ
- Average rainfall in December: 0.55"
The wettest month (with the highest rainfall) is January (0.59").
The driest month (with the least rainfall) is June (0.2").
Average rainfall days in December
Second Mesa, AZ
- Average rainfall days in December: 5.4 days
The month with the highest number of rainy days is July (6.5 days).
The month with the least rainy days is June (2.6 days).
Average snowfall in December
Second Mesa, AZ
- Average snowfall in December: 1.77"
The month with the highest snowfall is December (1.77").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Second Mesa, AZ
- Average snowfall days in December: 4.1 days
The month with the highest number of snowfall days is December (4.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Second Mesa, AZ
- Average daylight in December: 9h and 48min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in December: 7h
The month with the most sunshine is August (Average sunshine: 12h).
The month with the least sunshine is December (Average sunshine: 7h).
Average sunshine days in December
Second Mesa, AZ
- Average sunshine days in December: 22.8 days
The month with the most sunshine days is June (26.7 days).
The month with the least sunshine days is February (20.7 days).
Average UV index in December
Second Mesa, AZ
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Second Mesa, AZ
- Average cloud cover in December: 21
The month with the most cloud cover is December (Cloud cover 21).
The months with the least cloud cover are June and September (Cloud cover 8).
Average visibility in December
Second Mesa, AZ
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





