December weather forecastSan Manuel, AZ
December
Weather in December
The first month of the winter, December, is still a refreshing month in San Manuel, Arizona, with an average temperature ranging between max 57.6°F (14.2°C) and min 39.6°F (4.2°C).Temperature
With average high temperatures of 57.6°F (14.2°C) and lows of 39.6°F (4.2°C), December is the coldest month.Humidity
With an average relative humidity of 50%, December is the most humid month.Rainfall
In December, the rain falls for 7.5 days. Throughout December, 1.26" (32mm) of precipitation is accumulated. In San Manuel, during the entire year, the rain falls for 76 days and collects up to 10.39" (264mm) of precipitation.Snowfall
Months with snowfall in San Manuel are January, February, November and December. In San Manuel, during December, snow falls for 0.3 days and regularly aggregates up to 0.12" (3mm) of snow. Throughout the year, there are 1.6 snowfall days, and 3.19" (81mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 10h and 0min of daylight.On the first day of the month, sunrise is at 7:07 am and sunset at 5:16 pm. On the last day of December, sunrise is at 7:24 am and sunset at 5:27 pm MST.
Sunshine
With an average of 6.8h of sunshine, December has the least sunshine of the year.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In December, an average UV index of 3 transforms into the following instructions:
Be vigilant - Suggestions to stave off sun damage are provided. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
San Manuel, AZ
- Average high temperature in December: 57.6°F
The warmest month (with the highest average high temperature) is June (94.1°F).
The month with the lowest average high temperature is December (57.6°F).
- Average low temperature in December: 39.6°F
The month with the highest average low temperature is July (73.9°F).
The coldest months (with the lowest average low temperature) are January and December (39.6°F).
Average pressure in December
San Manuel, AZ
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in December
San Manuel, AZ
- Average wind speed in December: 5.7mph
The windiest month (with the highest average wind speed) is May (7.7mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in December
San Manuel, AZ
- Average humidity in December: 50%
The month with the highest relative humidity is December (50%).
The month with the lowest relative humidity is June (21%).
Average rainfall in December
San Manuel, AZ
- Average rainfall in December: 1.26"
The wettest month (with the highest rainfall) is July (1.38").
The driest month (with the least rainfall) is June (0.16").
Average rainfall days in December
San Manuel, AZ
- Average rainfall days in December: 7.5 days
The month with the highest number of rainy days is July (12.8 days).
The month with the least rainy days is May (2.8 days).
Average snowfall in December
San Manuel, AZ
- Average snowfall in December: 0.12"
The months with the highest snowfall are February and November (1.1").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").
Average snowfall days in December
San Manuel, AZ
- Average snowfall days in December: 0.3 days
The months with the highest number of snowfall days are January and February (0.6 days).
The months with the least snowfall days are March, April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
San Manuel, 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 month with the most sunshine is August (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in December
San Manuel, AZ
- Average sunshine days in December: 22.7 days
The month with the most sunshine days is May (27.5 days).
The month with the least sunshine days is July (16.1 days).
Average UV index in December
San Manuel, AZ
- Average UV index in December: 3
The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in December
San Manuel, AZ
- Average cloud cover in December: 21
The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is June (Cloud cover 7).
Average visibility in December
San Manuel, 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).
