December weather forecastExcelsior Estates, MO
December
Weather in December
December, the first month of the winter in Excelsior Estates, is also an icy month, with temperature in the range of an average high of 39°F (3.9°C) and an average low of 26.6°F (-3°C).Temperature
December brings a drop in Excelsior Estates's average high-temperature, falling from a cool 51.1°F (10.6°C) in November to a cold 39°F (3.9°C). The temperature dips to an average of 26.6°F (-3°C) during December nights.Humidity
In December, the average relative humidity in Excelsior Estates is 76%.Rainfall
In Excelsior Estates, during December, the rain falls for 6.1 days and regularly aggregates up to 1.3" (33mm) of precipitation. Throughout the year, there are 133.9 rainfall days, and 27.64" (702mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Excelsior Estates, in December, during 3.9 snowfall days, 1.02" (26mm) of snow is typically accumulated. Throughout the year, in Excelsior Estates, there are 21.6 snowfall days, and 9.21" (234mm) of snow is accumulated.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year in Excelsior Estates, Missouri.On the first day of December, sunrise is at 7:18 am and sunset at 4:53 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 5:03 pm CST.
Sunshine
The average sunshine in December in Excelsior Estates, Missouri, is 5.2h.UV index
The months with the lowest UV index in Excelsior Estates are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 2 in December translates into this advice:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Excelsior Estates, MO
- Average high temperature in December: 39°F
The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in December: 26.6°F
The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure in December
Excelsior Estates, MO
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in December
Excelsior Estates, MO
- Average wind speed in December: 9mph
The windiest month (with the highest average wind speed) is March (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in December
Excelsior Estates, MO
- Average humidity in December: 76%
The months with the highest relative humidity are May and June (80%).
The months with the lowest relative humidity are October and November (71%).
Average rainfall in December
Excelsior Estates, MO
- Average rainfall in December: 1.3"
The wettest month (with the highest rainfall) is May (3.86").
The driest month (with the least rainfall) is February (0.94").
Average rainfall days in December
Excelsior Estates, MO
- Average rainfall days in December: 6.1 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in December
Excelsior Estates, MO
- Average snowfall in December: 1.02"
The month with the highest snowfall is January (2.91").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Excelsior Estates, MO
- Average snowfall days in December: 3.9 days
The month with the highest number of snowfall days is January (5.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Excelsior Estates, MO
- Average daylight in December: 9h and 24min
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 24min).
- Average sunshine in December: 5h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in December
Excelsior Estates, MO
- Average sunshine days in December: 21.5 days
The month with the most sunshine days is December (21.5 days).
The month with the least sunshine days is May (11.7 days).
Average UV index in December
Excelsior Estates, MO
- Average UV index in December: 2
The months with the highest UV index are 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
Excelsior Estates, MO
- Average cloud cover in December: 43
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in December
Excelsior Estates, 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).
