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
In Sierra Vista, Arizona, the month of December is known for its lowest average temperatures, reaching a high of 56.5°F (13.6°C) and a low of 37.8°F (3.2°C).Humidity
In December, the average relative humidity is 49%.Rainfall
In December, in Sierra Vista, the rain falls for 5.7 days. Throughout December, 0.59" (15mm) of precipitation is accumulated. Throughout the year, in Sierra Vista, there are 92.2 rainfall days, and 15.47" (393mm) of precipitation is accumulated.Snowfall
January through March and December are months with snowfall in Sierra Vista, Arizona. December is the first month it typically snows. Throughout December, in the average 1.3 snowfall days, it receives 1.22" (31mm) of snow. In Sierra Vista, Arizona, during the entire year, snow falls for 3 days and aggregates up to 3.27" (83mm) of snow.Daylight
December has the shortest days of the year in Sierra Vista, with an average of 10h and 6min of daylight.On the first day of December in Sierra Vista, sunrise is at 7:03 am and sunset at 5:17 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 5:28 pm MST.
Sunshine
The month with the least sunshine is December, with an average of 6.9h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: In December, the average maximum UV index of 3 translates into the following recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Frequently asked questions
What is the coldest time of year in Sierra Vista?
What are the temperatures in Sierra Vista in December?
What is the average humidity in December in Sierra Vista?
How much does it rain in Sierra Vista in December?
When does it start to snow in Sierra Vista?
What is the month with the shortest days in Sierra Vista?
How many hours of daylight does Sierra Vista have in December?
When are sunrise and sunset in December in Sierra Vista?
What is the month with the least sunshine in Sierra Vista?
How many hours of sunshine does Sierra Vista have in December?
What is the month with the lowest UV index in Sierra Vista?
What is the UV index intensity in December in Sierra Vista?
Average temperature in December
Sierra Vista, AZ
- Average high temperature in December: 56.5°F
The warmest month (with the highest average high temperature) is June (90.1°F).
The month with the lowest average high temperature is December (56.5°F).
- Average low temperature in December: 37.8°F
The month with the highest average low temperature is July (69.6°F).
The coldest months (with the lowest average low temperature) are January and December (37.8°F).
Average pressure in December
Sierra Vista, AZ
- Average pressure in December: 30.05"Hg
The month with the highest atmospheric pressure is January (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in December
Sierra Vista, AZ
- Average wind speed in December: 6.6mph
The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in December
Sierra Vista, AZ
- Average humidity in December: 49%
The month with the highest relative humidity is September (50%).
The months with the lowest relative humidity are May and June (23%).
Average rainfall in December
Sierra Vista, AZ
- Average rainfall in December: 0.59"
The wettest month (with the highest rainfall) is July (4.53").
The driest month (with the least rainfall) is May (0.12").
Average rainfall days in December
Sierra Vista, AZ
- Average rainfall days in December: 5.7 days
The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is May (2.3 days).
Average snowfall in December
Sierra Vista, AZ
- Average snowfall in December: 1.22"
The month with the highest snowfall is February (1.46").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Sierra Vista, AZ
- Average snowfall days in December: 1.3 days
The month with the highest number of snowfall days is December (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Sierra Vista, AZ
- Average daylight in December: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in December: 6h and 5min
The months with the most sunshine are June and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).
Average sunshine days in December
Sierra Vista, AZ
- Average sunshine days in December: 23.5 days
The month with the most sunshine days is May (28.1 days).
The month with the least sunshine days is July (6.5 days).
Average UV index in December
Sierra Vista, AZ
- Average UV index in December: 3
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in December
Sierra Vista, AZ
- Average cloud cover in December: 21
The month with the most cloud cover is July (Cloud cover 24).
The month with the least cloud cover is May (Cloud cover 8).
Average visibility in December
Sierra Vista, 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).
Sierra Vista, Arizona, USA
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