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
Onset of December comes with a temperature decline, the average high falling from a refreshing 56.8°F (13.8°C) in November to a frosty 47.5°F (8.6°C). Throughout the month of December, Vastus witnesses an average temperature of 35.4°F (1.9°C).Humidity
In December, the average relative humidity is 77%.Rainfall
In Vastus, in December, during 10.2 rainfall days, 2.32" (59mm) of precipitation is typically accumulated. In Vastus, during the entire year, the rain falls for 150.2 days and collects up to 35.2" (894mm) of precipitation.Snowfall
Months with snowfall are January through March, October through December. In Vastus, during December, snow falls for 0.9 days and regularly aggregates up to 0.55" (14mm) of snow. In Vastus, during the entire year, snow falls for 7.3 days and aggregates up to 3.66" (93mm) of snow.Daylight
December has the shortest days of the year in Vastus, with an average of 9h and 42min of daylight.On the first day of December, sunrise is at 6:55 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 4:56 pm CST.
Sunshine
In December, the average sunshine is 5h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 2 during December translates into the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Vastus in December?
What is the average humidity in December?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December in Vastus?
When is the sunrise / sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Vastus, MO
- Average high temperature in December: 47.5°F
The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is January (43.5°F).
- Average low temperature in December: 35.4°F
The month with the highest average low temperature is July (71.4°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).
Average pressure in December
Vastus, MO
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Vastus, MO
- Average wind speed in December: 8.6mph
The windiest month (with the highest average wind speed) is February (9.5mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity in December
Vastus, MO
- Average humidity in December: 77%
The months with the highest relative humidity are March and May (78%).
The month with the lowest relative humidity is October (68%).
Average rainfall in December
Vastus, MO
- Average rainfall in December: 2.32"
The wettest months (with the highest rainfall) are April and May (4.37").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in December
Vastus, MO
- Average rainfall days in December: 10.2 days
The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in December
Vastus, MO
- Average snowfall in December: 0.55"
The month with the highest snowfall is February (1.18").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in December
Vastus, MO
- Average snowfall days in December: 0.9 days
The months with the highest number of snowfall days are January and February (2.3 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Vastus, MO
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in December
Vastus, MO
- Average sunshine days in December: 19.4 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (13.2 days).
Average UV index in December
Vastus, MO
- Average UV index in December: 2
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Vastus, MO
- Average cloud cover in December: 44
The months with the most cloud cover are February and March (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 24).
Average visibility in December
Vastus, 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).
Vastus, Missouri, USA
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