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
The average high-temperature drops in December, from November's fresh 54.5°F (12.5°C) to a frosty 43.9°F (6.6°C). Throughout December, Vista encounters an average temperature drop to a freezing cold 29.3°F (-1.5°C).Humidity
The average relative humidity in December in Vista is 75%.Rainfall
In Vista, in December, during 6 rainfall days, 1.3" (33mm) of precipitation is typically accumulated. In Vista, during the entire year, the rain falls for 141.9 days and collects up to 27.52" (699mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Vista, in December, during 3.8 snowfall days, 0.94" (24mm) of snow is typically accumulated. Throughout the year, in Vista, there are 19 snowfall days, and 5.87" (149mm) of snow is accumulated.Daylight
December has the shortest days of the year in Vista, with an average of 9h and 36min of daylight.On the first day of the month, sunrise is at 7:12 am and sunset at 4:55 pm. On the last day of December, sunrise is at 7:30 am and sunset at 5:05 pm CST.
Sunshine
In December, the average sunshine is 5.4h.UV index
The months with the lowest UV index in Vista are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 2 during December leads to these instructions:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. The solar radiation around mid-day is intense; avoid the Sun and stay safe. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Frequently asked questions
How cold is December in Vista?
What is the average humidity in December in Vista?
How many days does it rain in December in Vista?
How much does it snow in Vista in December?
What is the month with the shortest days in Vista?
How many hours of daylight does Vista have in December?
What time are sunrise and sunset in December in Vista?
How many hours of sunshine does Vista have in December?
What are the months with the lowest UV index in Vista?
What is the UV index reading in December in Vista?
Average temperature in December
Vista, MO
- Average high temperature in December: 43.9°F
The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is January (40.5°F).
- Average low temperature in December: 29.3°F
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).
Average pressure in December
Vista, MO
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Vista, MO
- Average wind speed in December: 8.9mph
The windiest month (with the highest average wind speed) is March (9.6mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).
Average humidity in December
Vista, MO
- Average humidity in December: 75%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Vista, MO
- Average rainfall in December: 1.3"
The wettest month (with the highest rainfall) is May (4.33").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days in December
Vista, MO
- Average rainfall days in December: 6 days
The months with the highest number of rainy days are May and July (16.7 days).
The month with the least rainy days is December (6 days).
Average snowfall in December
Vista, MO
- Average snowfall in December: 0.94"
The month with the highest snowfall is February (2.28").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Vista, MO
- Average snowfall days in December: 3.8 days
The month with the highest number of snowfall days is February (5.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Vista, MO
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 5h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in December
Vista, MO
- Average sunshine days in December: 20.7 days
The month with the most sunshine days is December (20.7 days).
The month with the least sunshine days is July (11.7 days).
Average UV index in December
Vista, MO
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Vista, MO
- Average cloud cover in December: 43
The month with the most cloud cover is March (Cloud cover 47).
The months with the least cloud cover are June and August (Cloud cover 27).
Average visibility in December
Vista, MO
- 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).
Vista, Missouri, USA
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