Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December's arrival correlates with a reduction in the average high-temperature, down from a chilly 43.5°F (6.4°C) in November to a wintry 32°F (0°C). In the month of December, an average of 15.8°F (-9°C) marks the low-temperature.Humidity
In Mesa, the average relative humidity in December is 77%.Rainfall
In December, in Mesa, the rain falls for 8.5 days. Throughout December, 1.65" (42mm) of precipitation is accumulated. In Mesa, Colorado, during the entire year, the rain falls for 122.7 days and collects up to 17.91" (455mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Mesa. In Mesa, during December, snow falls for 13.6 days and regularly aggregates up to 10.79" (274mm) of snow. Throughout the year, there are 64.1 snowfall days, and 49.21" (1250mm) of snow is accumulated.Daylight
December has the shortest days of the year in Mesa, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 7:13 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 5:00 pm MST.
Sunshine
The average sunshine in December in Mesa is 6.1h.UV index
The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 2 during December translates into the following guidance:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Frequently asked questions
How cold is December in Mesa?
What is the average humidity in December in Mesa?
How many days does it rain in December in Mesa?
How many days does it snow in December in Mesa?
What is the month with the shortest days in Mesa?
How many hours of daylight does Mesa have in December?
What time are sunrise and sunset in December in Mesa?
How long on average sun shines in December in Mesa?
What is the month with the lowest UV index in Mesa?
How high is the UV index in December in Mesa?
Average temperature in December
Mesa, CO
- Average high temperature in December: 32°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in December: 15.8°F
The month with the highest average low temperature is July (54.3°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure in December
Mesa, CO
- Average pressure in December: 30.2"Hg
The month with the highest atmospheric pressure is January (30.26"Hg).
The month with the lowest atmospheric pressure is May (29.91"Hg).
Average wind speed in December
Mesa, CO
- Average wind speed in December: 4.3mph
The windiest month (with the highest average wind speed) is June (7.1mph).
The calmest month (with the lowest average wind speed) is January (4.2mph).
Average humidity in December
Mesa, CO
- Average humidity in December: 77%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is June (37%).
Average rainfall in December
Mesa, CO
- Average rainfall in December: 1.65"
The wettest month (with the highest rainfall) is March (2.09").
The driest month (with the least rainfall) is August (0.83").
Average rainfall days in December
Mesa, CO
- Average rainfall days in December: 8.5 days
The month with the highest number of rainy days is April (15.5 days).
The month with the least rainy days is November (6.2 days).
Average snowfall in December
Mesa, CO
- Average snowfall in December: 10.79"
The month with the highest snowfall is January (12.28").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Mesa, CO
- Average snowfall days in December: 13.6 days
The month with the highest number of snowfall days is January (15.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Mesa, CO
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 6h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 48min).
Average sunshine days in December
Mesa, CO
- Average sunshine days in December: 14.9 days
The month with the most sunshine days is August (20.8 days).
The month with the least sunshine days is February (10.7 days).
Average UV index in December
Mesa, CO
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in December
Mesa, CO
- Average cloud cover in December: 37
The month with the most cloud cover is February (Cloud cover 40).
The months with the least cloud cover are June and September (Cloud cover 14).
Average visibility in December
Mesa, CO
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
Mesa, Colorado, USA
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