December weather forecastHappy Jack, AZ
December
Weather in December
The first month of the winter, December, is also a frosty month in Happy Jack, Arizona, with an average temperature ranging between max 46°F (7.8°C) and min 27.9°F (-2.3°C).Temperature
December is the month when Happy Jack experiences its coldest temperatures, averaging a high of 46°F (7.8°C) and a low of 27.9°F (-2.3°C).Humidity
In December, the average relative humidity is 61%.Rainfall
In Happy Jack, during December, the rain falls for 6.5 days and regularly aggregates up to 1.14" (29mm) of precipitation. Throughout the year, there are 86 rainfall days, and 11.65" (296mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. The month with the most snowfall in Happy Jack is December, when snow falls for 3.5 days and typically aggregates up to 2.68" (68mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 54min of daylight.On the first day of the month, sunrise is at 7:15 am and sunset at 5:14 pm. On the last day of December, sunrise is at 7:32 am and sunset at 5:25 pm MST.
Sunshine
With an average of 6.7h of sunshine, December has the least sunshine of the year.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum UV index of 2 in December translates into the following recommendations:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Happy Jack, AZ
- Average high temperature in December: 46°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is December (46°F).
- Average low temperature in December: 27.9°F
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is December (27.9°F).
Average pressure in December
Happy Jack, AZ
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in December
Happy Jack, AZ
- Average wind speed in December: 6.3mph
The windiest month (with the highest average wind speed) is April (8.2mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in December
Happy Jack, AZ
- Average humidity in December: 61%
The month with the highest relative humidity is January (62%).
The month with the lowest relative humidity is June (24%).
Average rainfall in December
Happy Jack, AZ
- Average rainfall in December: 1.14"
The wettest month (with the highest rainfall) is July (2.28").
The driest month (with the least rainfall) is June (0.16").
Average rainfall days in December
Happy Jack, AZ
- Average rainfall days in December: 6.5 days
The month with the highest number of rainy days is July (16.2 days).
The month with the least rainy days is June (2.8 days).
Average snowfall in December
Happy Jack, AZ
- Average snowfall in December: 2.68"
The month with the highest snowfall is December (2.68").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Happy Jack, AZ
- Average snowfall days in December: 3.5 days
The month with the highest number of snowfall days is December (3.5 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight in December /
Average sunshine in December
Happy Jack, AZ
- Average daylight in December: 9h and 54min
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 54min).
- Average sunshine in December: 6h and 42min
The month with the most sunshine is August (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in December
Happy Jack, AZ
- Average sunshine days in December: 22.7 days
The month with the most sunshine days is June (26 days).
The month with the least sunshine days is July (9.9 days).
Average UV index in December
Happy Jack, AZ
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Happy Jack, AZ
- Average cloud cover in December: 24
The month with the most cloud cover is December (Cloud cover 24).
The month with the least cloud cover is June (Cloud cover 6).
Average visibility in December
Happy Jack, 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).
