December weather forecastAztec, AZ
December
Weather in December
The first month of the winter, December, is still a refreshing month in Aztec, Arizona, with an average temperature fluctuating between 64.8°F (18.2°C) and 49.6°F (9.8°C).Temperature
Aztec's coldest month, December, registers temperatures that range from a high of 64.8°F (18.2°C) to a low of 49.6°F (9.8°C).Humidity
The most humid month is December, with an average relative humidity of 40%.Rainfall
In Aztec, during December, the rain falls for 3.8 days and regularly aggregates up to 0.39" (10mm) of precipitation. Throughout the year, there are 39.5 rainfall days, and 4.06" (103mm) of precipitation is accumulated.Daylight
December has the shortest days of the year in Aztec, with an average of 10h and 0min of daylight.On the first day of the month, sunrise is at 7:18 am and sunset at 5:27 pm. On the last day of December, in Aztec, sunrise is at 7:36 am and sunset at 5:38 pm MST.
Sunshine
The month with the least sunshine is December, with an average of 7.1h of sunshine.UV index
The months with the lowest UV index are November and December, with an average maximum UV index of 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: The average daily UV index of 4 in December transforms into the following instructions:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Aztec, AZ
- Average high temperature in December: 64.8°F
The warmest month (with the highest average high temperature) is July (103.8°F).
The month with the lowest average high temperature is December (64.8°F).
- Average low temperature in December: 49.6°F
The month with the highest average low temperature is August (86.2°F).
The coldest months (with the lowest average low temperature) are January and December (49.6°F).
Average pressure in December
Aztec, AZ
- Average pressure in December: 30.03"Hg
The month with the highest atmospheric pressure is January (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.73"Hg).
Average wind speed in December
Aztec, AZ
- Average wind speed in December: 5.6mph
The windiest month (with the highest average wind speed) is July (8.6mph).
The calmest month (with the lowest average wind speed) is December (5.6mph).
Average humidity in December
Aztec, AZ
- Average humidity in December: 40%
The month with the highest relative humidity is December (40%).
The month with the lowest relative humidity is June (21%).
Average rainfall in December
Aztec, AZ
- Average rainfall in December: 0.39"
The wettest month (with the highest rainfall) is July (0.75").
The driest month (with the least rainfall) is May (0.04").
Average rainfall days in December
Aztec, AZ
- Average rainfall days in December: 3.8 days
The month with the highest number of rainy days is July (8.2 days).
The month with the least rainy days is May (1 days).
Average daylight in December /
Average sunshine in December
Aztec, 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: 7h and 6min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).
Average sunshine days in December
Aztec, AZ
- Average sunshine days in December: 27.2 days
The month with the most sunshine days is May (29.7 days).
The month with the least sunshine days is July (19.3 days).
Average UV index in December
Aztec, AZ
- Average UV index in December: 4
The months with the highest UV index are June, July and August (UV index 8).
The months with the lowest UV index are November and December (UV index 4).
Average cloud cover in December
Aztec, AZ
- Average cloud cover in December: 18
The month with the most cloud cover is December (Cloud cover 18).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility in December
Aztec, 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).





