December weather forecastWillcox, AZ
December
Weather in December
The first month of the winter, December, is also a fresh month in Willcox, Arizona, with an average temperature fluctuating between 55.2°F (12.9°C) and 36.5°F (2.5°C).Temperature
The coldest time of the year is December, with temperatures averaging a high of 55.2°F (12.9°C) and a low of 36.5°F (2.5°C).Humidity
With an average relative humidity of 52%, December is the most humid month.Rainfall
In Willcox, during December, the rain falls for 6.7 days and regularly aggregates up to 0.67" (17mm) of precipitation. In Willcox, during the entire year, the rain falls for 92.5 days and collects up to 12.36" (314mm) of precipitation.Snowfall
Months with snowfall are January through March and December. December is the first month it typically snows. Throughout December, in the average 1.3 snowfall days, it receives 0.71" (18mm) of snow. Throughout the year, there are 2.9 snowfall days, and 2.4" (61mm) of snow is accumulated.Daylight
With an average of 10h and 6min of daylight, December has the shortest days of the year in Willcox.On the first day of the month, sunrise is at 7:03 am and sunset at 5:14 pm. On the last day of December, sunrise is at 7:20 am and sunset at 5:25 pm MST.
Sunshine
December has the least sunshine of the year, with an average of 6.9h of sunshine.UV index
The months with the lowest UV index are January, November and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: In December, the average maximum UV index of 3 translates into the following recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Willcox, AZ
- Average high temperature in December: 55.2°F
The warmest month (with the highest average high temperature) is June (92.1°F).
The month with the lowest average high temperature is December (55.2°F).
- Average low temperature in December: 36.5°F
The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (36.1°F).
Average pressure in December
Willcox, AZ
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in December
Willcox, AZ
- Average wind speed in December: 6mph
The windiest month (with the highest average wind speed) is April (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in December
Willcox, AZ
- Average humidity in December: 52%
The month with the highest relative humidity is December (52%).
The month with the lowest relative humidity is June (21%).
Average rainfall in December
Willcox, AZ
- Average rainfall in December: 0.67"
The wettest month (with the highest rainfall) is August (3.07").
The driest month (with the least rainfall) is May (0.08").
Average rainfall days in December
Willcox, AZ
- Average rainfall days in December: 6.7 days
The month with the highest number of rainy days is July (19.7 days).
The month with the least rainy days is May (2.6 days).
Average snowfall in December
Willcox, AZ
- Average snowfall in December: 0.71"
The month with the highest snowfall is February (0.87").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Willcox, AZ
- Average snowfall days in December: 1.3 days
The month with the highest number of snowfall days is December (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Willcox, AZ
- Average daylight in December: 10h and 6min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in December: 6h and 54min
The month with the most sunshine is August (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).
Average sunshine days in December
Willcox, AZ
- Average sunshine days in December: 23.2 days
The month with the most sunshine days is May (27.4 days).
The month with the least sunshine days is July (6.6 days).
Average UV index in December
Willcox, AZ
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, November and December (UV index 3).
Average cloud cover in December
Willcox, AZ
- Average cloud cover in December: 20
The months with the most cloud cover are July and December (Cloud cover 20).
The month with the least cloud cover is May (Cloud cover 8).
Average visibility in December
Willcox, 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).





