December weather forecastValentine, AZ
December
Weather in December
The first month of the winter, December, is still a cool month in Valentine, Arizona, with an average temperature fluctuating between 51.4°F (10.8°C) and 36.9°F (2.7°C).Temperature
Temperature records mark December as the coldest month, with highs averaging 51.4°F (10.8°C) and lows at 36.9°F (2.7°C).Humidity
January and December, with an average relative humidity of 49%, are the most humid months in Valentine, Arizona.Rainfall
In December, in Valentine, the rain falls for 6.7 days. Throughout December, 1.1" (28mm) of precipitation is accumulated. Throughout the year, there are 76.7 rainfall days, and 11.89" (302mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. In Valentine, in December, snow falls for 1 days, with typically accumulated 0.87" (22mm) of snow. In Valentine, during the entire year, snow falls for 3 days and aggregates up to 4.21" (107mm) of snow.Daylight
With an average of 9h and 48min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:25 am and sunset at 5:22 pm. On the last day of December, in Valentine, Arizona, sunrise is at 7:43 am and sunset at 5:32 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 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: In December, the maximum UV index of 2 suggests this advice:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. 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
Valentine, AZ
- Average high temperature in December: 51.4°F
The warmest month (with the highest average high temperature) is July (93°F).
The month with the lowest average high temperature is December (51.4°F).
- Average low temperature in December: 36.9°F
The month with the highest average low temperature is August (75°F).
The coldest month (with the lowest average low temperature) is December (36.9°F).
Average pressure in December
Valentine, AZ
- Average pressure in December: 30.08"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.78"Hg).
Average wind speed in December
Valentine, AZ
- Average wind speed in December: 7.3mph
The windiest month (with the highest average wind speed) is June (10.6mph).
The calmest months (with the lowest average wind speed) are January and December (7.3mph).
Average humidity in December
Valentine, AZ
- Average humidity in December: 49%
The months with the highest relative humidity are January and December (49%).
The month with the lowest relative humidity is June (17%).
Average rainfall in December
Valentine, AZ
- Average rainfall in December: 1.1"
The wettest month (with the highest rainfall) is July (2.17").
The driest month (with the least rainfall) is June (0.12").
Average rainfall days in December
Valentine, AZ
- Average rainfall days in December: 6.7 days
The month with the highest number of rainy days is July (12.8 days).
The month with the least rainy days is June (2 days).
Average snowfall in December
Valentine, AZ
- Average snowfall in December: 0.87"
The month with the highest snowfall is November (1.73").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Valentine, AZ
- Average snowfall days in December: 1 days
The months with the highest number of snowfall days are February and December (1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Valentine, AZ
- Average daylight in December: 9h and 48min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in December: 6h and 42min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in December
Valentine, AZ
- Average sunshine days in December: 23.2 days
The month with the most sunshine days is June (26.8 days).
The month with the least sunshine days is July (14.8 days).
Average UV index in December
Valentine, AZ
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Valentine, AZ
- Average cloud cover in December: 23
The month with the most cloud cover is December (Cloud cover 23).
The month with the least cloud cover is June (Cloud cover 6).
Average visibility in December
Valentine, 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).





