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, marked by an average high-temperature of 55.9°F (13.3°C) and a low-temperature of 37.6°F (3.1°C), is the coldest month.Humidity
December is the most humid month, with an average relative humidity of 51%.Rainfall
In Pima, in December, it is raining for 7.3 days, with typically 1.06" (27mm) of accumulated precipitation. In Pima, Arizona, during the entire year, the rain falls for 78.6 days and collects up to 8.39" (213mm) of precipitation.Snowfall
Months with snowfall are January, February and December. December is the first month it typically snows. Throughout December, in the average 0.3 snowfall days, it receives 0.08" (2mm) of snow. In Pima, during the entire year, snow falls for 1 days and aggregates up to 0.55" (14mm) of snow.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 7:04 am and sunset at 5:12 pm. On the last day of December, sunrise is at 7:21 am and sunset at 5:23 pm MST.
Sunshine
With an average of 7h of sunshine, December has the least sunshine of the year.UV index
With an average maximum UV index of 2, December is the month with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index, 2 during December, leads to the following recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Around midday, solar radiation is most harmful; hence, exposure should be limited. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
What are the temperatures in December?
What is the most humid month?
What is the average humidity in December?
How many days does it rain in December?
When does it start snowing?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Pima have in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Pima, AZ
- Average high temperature in December: 55.9°F
The warmest month (with the highest average high temperature) is June (94.3°F).
The month with the lowest average high temperature is December (55.9°F).
- Average low temperature in December: 37.6°F
The month with the highest average low temperature is July (73.9°F).
The coldest month (with the lowest average low temperature) is January (37.4°F).
Average pressure in December
Pima, AZ
- Average pressure in December: 30.08"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in December
Pima, AZ
- Average wind speed in December: 5.4mph
The windiest months (with the highest average wind speed) are April and May (7.3mph).
The calmest months (with the lowest average wind speed) are January and December (5.4mph).
Average humidity in December
Pima, AZ
- Average humidity in December: 51%
The month with the highest relative humidity is December (51%).
The month with the lowest relative humidity is June (20%).
Average rainfall in December
Pima, AZ
- Average rainfall in December: 1.06"
The wettest month (with the highest rainfall) is July (1.22").
The driest month (with the least rainfall) is May (0.12").
Average rainfall days in December
Pima, AZ
- Average rainfall days in December: 7.3 days
The month with the highest number of rainy days is July (14.5 days).
The month with the least rainy days is May (2.7 days).
Average snowfall in December
Pima, AZ
- Average snowfall in December: 0.08"
The month with the highest snowfall is January (0.31").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Pima, AZ
- Average snowfall days in December: 0.3 days
The month with the highest number of snowfall days is February (0.4 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Pima, 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: 7h and 0min
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 0min).
Average sunshine days in December
Pima, AZ
- Average sunshine days in December: 22.7 days
The month with the most sunshine days is May (27.3 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in December
Pima, AZ
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Pima, AZ
- Average cloud cover in December: 20
The month with the most cloud cover is December (Cloud cover 20).
The months with the least cloud cover are May and June (Cloud cover 8).
Average visibility in December
Pima, 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).
Pima, Arizona, USA
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