December weather forecastCoolidge, AZ
December
Weather in December
The first month of the winter, December, is still a comfortable month in Coolidge, Arizona, with an average temperature varying between 47.1°F (8.4°C) and 63.1°F (17.3°C).Temperature
In Coolidge, December is the month with the lowest recorded average temperatures, measuring a high of 63.1°F (17.3°C) and a low of 47.1°F (8.4°C).Humidity
With an average relative humidity of 44%, December is the most humid month in Coolidge, Arizona.Rainfall
In Coolidge, in December, during 5.4 rainfall days, 0.83" (21mm) of precipitation is typically accumulated. In Coolidge, during the entire year, the rain falls for 50.9 days and collects up to 6.89" (175mm) of precipitation.Daylight
The month with the shortest days in Coolidge is December, with an average of 10h and 0min of daylight.On the first day of the month, sunrise is at 7:11 am and sunset at 5:19 pm. On the last day of December, in Coolidge, sunrise is at 7:28 am and sunset at 5:30 pm MST.
Sunshine
The month with the least sunshine in Coolidge is December, with an average of 6.8h of sunshine.UV index
With an average maximum UV index of 3, December is the month with the lowest UV index in Coolidge, Arizona. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, a daily maximum UV index of 3 leads to the following instructions:
Be vigilant - Preventing sunburn is recommended. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Coolidge, AZ
- Average high temperature in December: 63.1°F
The warmest month (with the highest average high temperature) is July (102°F).
The month with the lowest average high temperature is December (63.1°F).
- Average low temperature in December: 47.1°F
The month with the highest average low temperature is August (82.8°F).
The coldest month (with the lowest average low temperature) is January (46.8°F).
Average pressure in December
Coolidge, AZ
- Average pressure in December: 30.05"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.82"Hg).
Average wind speed in December
Coolidge, AZ
- Average wind speed in December: 5.4mph
The windiest months (with the highest average wind speed) are April and May (7.3mph).
The calmest month (with the lowest average wind speed) is December (5.4mph).
Average humidity in December
Coolidge, AZ
- Average humidity in December: 44%
The month with the highest relative humidity is December (44%).
The month with the lowest relative humidity is June (17%).
Average rainfall in December
Coolidge, AZ
- Average rainfall in December: 0.83"
The wettest month (with the highest rainfall) is February (0.91").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in December
Coolidge, AZ
- Average rainfall days in December: 5.4 days
The month with the highest number of rainy days is July (8.3 days).
The month with the least rainy days is June (1.3 days).
Average daylight in December /
Average sunshine in December
Coolidge, AZ
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in December: 6h and 48min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in December
Coolidge, AZ
- Average sunshine days in December: 25.4 days
The month with the most sunshine days is May (29.2 days).
The month with the least sunshine days is July (19.8 days).
Average UV index in December
Coolidge, AZ
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Coolidge, AZ
- Average cloud cover in December: 21
The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is June (Cloud cover 6).
Average visibility in December
Coolidge, 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).





