December weather forecastCleaveland, AZ
December
Weather in December
The first month of the winter, December, is also a wintry month in Cleaveland, Arizona, with temperature in the range of an average low of 21.7°F (-5.7°C) and an average high of 39°F (3.9°C).Temperature
Cleaveland's transition into December involves a shift in temperature, receding from a chilly 49.3°F (9.6°C) in November to a cold 39°F (3.9°C). During December, Cleaveland observes a consistent average nighttime temperature of 21.7°F (-5.7°C).Humidity
In Cleaveland, the average relative humidity in December is 67%.Rainfall
In Cleaveland, in December, it is raining for 3.4 days, with typically 1.5" (38mm) of accumulated precipitation. Throughout the year, there are 109 rainfall days, and 28.5" (724mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Cleaveland, during December, snow falls for 10 days and regularly aggregates up to 10" (254mm) of snow. Throughout the year, there are 50 snowfall days, and 45.55" (1157mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 10h and 0min of daylight.On the first day of the month, sunrise is at 7:04 am and sunset at 5:08 pm. On the last day of December, sunrise is at 7:21 am and sunset at 5:19 pm MST.
Sunshine
The month with the least sunshine is December, with an average of 6.1h of sunshine.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.Note: A maximum UV index of 1 in December translates into the following recommendations:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Cleaveland, AZ
- Average high temperature in December: 39°F
The warmest month (with the highest average high temperature) is June (75.2°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in December: 21.7°F
The month with the highest average low temperature is July (53.6°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in December
Cleaveland, AZ
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Cleaveland, AZ
- Average wind speed in December: 8.1mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in December
Cleaveland, AZ
- Average humidity in December: 67%
The month with the highest relative humidity is January (70%).
The month with the lowest relative humidity is June (33%).
Average rainfall in December
Cleaveland, AZ
- Average rainfall in December: 1.5"
The wettest month (with the highest rainfall) is July (7.36").
The driest month (with the least rainfall) is October (0.83").
Average rainfall days in December
Cleaveland, AZ
- Average rainfall days in December: 3.4 days
The month with the highest number of rainy days is July (25.8 days).
The month with the least rainy days is February (1.9 days).
Average snowfall in December
Cleaveland, AZ
- Average snowfall in December: 10"
The month with the highest snowfall is January (10.28").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Cleaveland, AZ
- Average snowfall days in December: 10 days
The month with the highest number of snowfall days is December (10 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Cleaveland, AZ
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in December: 6h and 6min
The month with the most sunshine is June (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).
Average sunshine days in December
Cleaveland, AZ
- Average sunshine days in December: 19.7 days
The month with the most sunshine days is November (24 days).
The month with the least sunshine days is July (3.5 days).
Average UV index in December
Cleaveland, AZ
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Cleaveland, AZ
- Average cloud cover in December: 33
The month with the most cloud cover is December (Cloud cover 33).
The month with the least cloud cover is June (Cloud cover 13).
Average visibility in December
Cleaveland, 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).





