December weather forecastDuncan, AZ
December
Weather in December
December, the first month of the winter in Duncan, is still a cool month, with an average temperature varying between 34.5°F (1.4°C) and 52.7°F (11.5°C).Temperature
With average high and low temperatures of 52.7°F (11.5°C) and 34.5°F (1.4°C) respectively, December is Duncan's coldest month.Humidity
December is the most humid month in Duncan, with an average relative humidity of 53%.Rainfall
In Duncan, in December, during 7.3 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. Throughout the year, there are 92.3 rainfall days, and 12.13" (308mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March and December. December is the month with the most snowfall in Duncan. Snow falls for 0.9 days and accumulates 0.87" (22mm) of snow.Daylight
With an average of 10h and 0min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:01 am and sunset at 5:10 pm. On the last day of December, in Duncan, sunrise is at 7:18 am and sunset at 5:21 pm MST.
Sunshine
With an average of 6.8h of sunshine, December has the least sunshine of the year in Duncan.UV index
December is the month with the lowest UV index, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: In December, a regular UV index of 2 translates into these guidelines:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. To protect against the Sun's most potent rays, avoid direct exposure around midday. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Duncan, AZ
- Average high temperature in December: 52.7°F
The warmest month (with the highest average high temperature) is June (91°F).
The month with the lowest average high temperature is December (52.7°F).
- Average low temperature in December: 34.5°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (34.3°F).
Average pressure in December
Duncan, AZ
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in December
Duncan, AZ
- Average wind speed in December: 5.1mph
The windiest months (with the highest average wind speed) are April and May (8.3mph).
The calmest month (with the lowest average wind speed) is December (5.1mph).
Average humidity in December
Duncan, AZ
- Average humidity in December: 53%
The month with the highest relative humidity is December (53%).
The month with the lowest relative humidity is June (22%).
Average rainfall in December
Duncan, AZ
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is July (2.44").
The driest month (with the least rainfall) is April (0.2").
Average rainfall days in December
Duncan, AZ
- Average rainfall days in December: 7.3 days
The months with the highest number of rainy days are July and August (16.8 days).
The month with the least rainy days is May (3.5 days).
Average snowfall in December
Duncan, AZ
- Average snowfall in December: 0.87"
The month with the highest snowfall is December (0.87").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Duncan, AZ
- Average snowfall days in December: 0.9 days
The month with the highest number of snowfall days is December (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Duncan, 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 months with the most sunshine are June and August (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in December
Duncan, AZ
- Average sunshine days in December: 23 days
The month with the most sunshine days is May (26.4 days).
The month with the least sunshine days is August (8.3 days).
Average UV index in December
Duncan, AZ
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Duncan, AZ
- Average cloud cover in December: 22
The month with the most cloud cover is December (Cloud cover 22).
The months with the least cloud cover are May and June (Cloud cover 9).
Average visibility in December
Duncan, 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).
