December weather forecastApache Junction, AZ
December
Weather in December
December solidifies Apache Junction's descent into its winter season. A noticeable drop in temperature from November, paints a wintertime portrait that's uniquely Arizonian. The sunlit hours shorten, giving way to crisp, starry nights, while the frequency of rainfall slightly heightens. Nonetheless, Apache Junction maintains comfortable parameters that draw winter escapists. As maximum temperatures simmer down to 61.2°F (16.2°C), the city gift wraps this calming chill just in time for the holidays.Temperature
December, on average, is the coldest month, registering a high temperature of 61.2°F (16.2°C) and a low of 45.1°F (7.3°C).Humidity
The most humid month is December, with an average relative humidity of 46%.Rainfall
In Apache Junction, in December, it is raining for 6.5 days, with typically 0.98" (25mm) of accumulated precipitation. Throughout the year, there are 59.4 rainfall days, and 9.21" (234mm) of precipitation 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 December in Apache Junction, sunrise is at 7:12 am and sunset at 5:18 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:29 pm MST.
Sunshine
With an average of 6.7h of sunshine, December has the least sunshine of the year.UV index
The month with the lowest UV index is December, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 3 during December translates into the following directions:
Take precautions - Protection against sunburn is recommended. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Apache Junction, AZ
- Average high temperature in December: 61.2°F
The warmest month (with the highest average high temperature) is July (100°F).
The month with the lowest average high temperature is December (61.2°F).
- Average low temperature in December: 45.1°F
The month with the highest average low temperature is August (81.3°F).
The coldest month (with the lowest average low temperature) is January (45°F).
Average pressure in December
Apache Junction, AZ
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in December
Apache Junction, AZ
- Average wind speed in December: 5mph
The windiest month (with the highest average wind speed) is May (6.8mph).
The calmest month (with the lowest average wind speed) is December (5mph).
Average humidity in December
Apache Junction, AZ
- Average humidity in December: 46%
The month with the highest relative humidity is December (46%).
The month with the lowest relative humidity is June (17%).
Average rainfall in December
Apache Junction, AZ
- Average rainfall in December: 0.98"
The wettest month (with the highest rainfall) is July (1.34").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in December
Apache Junction, AZ
- Average rainfall days in December: 6.5 days
The month with the highest number of rainy days is July (10.1 days).
The month with the least rainy days is June (1.4 days).
Average daylight in December /
Average sunshine in December
Apache Junction, 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 42min
The months with the most sunshine are June and August (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in December
Apache Junction, AZ
- Average sunshine days in December: 24 days
The month with the most sunshine days is May (28.4 days).
The month with the least sunshine days is July (17.3 days).
Average UV index in December
Apache Junction, 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
Apache Junction, AZ
- Average cloud cover in December: 22
The month with the most cloud cover is December (Cloud cover 22).
The month with the least cloud cover is June (Cloud cover 6).
Average visibility in December
Apache Junction, 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).





