December weather forecastMorgantown, AZ
December
Weather in December
The first month of the winter, December, is still a comfortable month in Morgantown, Arizona, with an average temperature ranging between min 48°F (8.9°C) and max 62.8°F (17.1°C).Temperature
In Morgantown, the lowest temperatures are generally noted in December, averaging a high of 62.8°F (17.1°C) and a low of 48°F (8.9°C).Humidity
January and December, with an average relative humidity of 38%, are the most humid months.Rainfall
In Morgantown, in December, during 3.2 rainfall days, 0.28" (7mm) of precipitation is typically accumulated. Throughout the year, in Morgantown, there are 31.7 rainfall days, and 2.87" (73mm) of precipitation is accumulated.Daylight
The month with the shortest days in Morgantown is December, with an average of 10h and 0min of daylight.On the first day of December, sunrise is at 7:24 am and sunset at 5:29 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 5:40 pm MST.
Sunshine
With an average of 7.1h of sunshine, December has the least sunshine of the year.UV index
November and December, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.Note: In December, a regular UV index of 4 translates into these guidelines:
Heed the precautions - It is counselled to guard against solar damage. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Morgantown, AZ
- Average high temperature in December: 62.8°F
The warmest month (with the highest average high temperature) is July (105.3°F).
The month with the lowest average high temperature is December (62.8°F).
- Average low temperature in December: 48°F
The month with the highest average low temperature is August (86°F).
The coldest month (with the lowest average low temperature) is December (48°F).
Average pressure in December
Morgantown, AZ
- Average pressure in December: 30.05"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.74"Hg).
Average wind speed in December
Morgantown, AZ
- Average wind speed in December: 6.4mph
The windiest months (with the highest average wind speed) are April and May (8.9mph).
The calmest month (with the lowest average wind speed) is November (6.3mph).
Average humidity in December
Morgantown, AZ
- Average humidity in December: 38%
The months with the highest relative humidity are January and December (38%).
The month with the lowest relative humidity is June (18%).
Average rainfall in December
Morgantown, AZ
- Average rainfall in December: 0.28"
The wettest month (with the highest rainfall) is July (0.39").
The driest months (with the least rainfall) are May and June (0.04").
Average rainfall days in December
Morgantown, AZ
- Average rainfall days in December: 3.2 days
The month with the highest number of rainy days is July (5.8 days).
The month with the least rainy days is June (0.8 days).
Average daylight in December /
Average sunshine in December
Morgantown, AZ
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 24min).
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 August (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).
Average sunshine days in December
Morgantown, AZ
- Average sunshine days in December: 27.3 days
The month with the most sunshine days is May (29.6 days).
The month with the least sunshine days is July (21.5 days).
Average UV index in December
Morgantown, AZ
- Average UV index in December: 4
The months with the highest UV index are July and August (UV index 9).
The months with the lowest UV index are November and December (UV index 4).
Average cloud cover in December
Morgantown, AZ
- Average cloud cover in December: 17
The month with the most cloud cover is December (Cloud cover 17).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility in December
Morgantown, 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).





