December weather forecastDayton, MO
December
Weather in December
December, the first month of the winter in Dayton, is also a frosty month, with an average temperature varying between 42.8°F (6°C) and 28.9°F (-1.7°C).Temperature
As December begins, there is a decrease in the average high-temperature, falling from a cool 53.6°F (12°C) in November to a chilly 42.8°F (6°C). The temperature in Dayton, Missouri, dips to an average of 28.9°F (-1.7°C) during December nights.Humidity
In December, the average relative humidity is 73%.Rainfall
In Dayton, in December, during 4.3 rainfall days, 0.71" (18mm) of precipitation is typically accumulated. In Dayton, during the entire year, the rain falls for 114.1 days and collects up to 13.9" (353mm) of precipitation.Snowfall
January through March, May, October through December are months with snowfall. In December, it is snowing for 2 days. Throughout December, 0.31" (8mm) of snow is accumulated. In Dayton, during the entire year, snow falls for 11.5 days and aggregates up to 2.2" (56mm) of snow.Daylight
December has the shortest days of the year in Dayton, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 7:15 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 5:06 pm CST.
Sunshine
In December, the average sunshine in Dayton is 5.5h.UV index
The months with the lowest UV index in Dayton are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 2 in December converts into the following recommendations:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Stay sun-safe with clothing that is both closely woven and worn loosely. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Dayton, MO
- Average high temperature in December: 42.8°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in December: 28.9°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in December
Dayton, 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 (29.9"Hg).
Average wind speed in December
Dayton, MO
- Average wind speed in December: 9.5mph
The windiest month (with the highest average wind speed) is March (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in December
Dayton, MO
- Average humidity in December: 73%
The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Dayton, MO
- Average rainfall in December: 0.71"
The wettest month (with the highest rainfall) is May (2.6").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days in December
Dayton, MO
- Average rainfall days in December: 4.3 days
The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is January (3.5 days).
Average snowfall in December
Dayton, MO
- Average snowfall in December: 0.31"
The month with the highest snowfall is February (0.71").
The months with the least snowfall are April, June, July, August and September (0").
Average snowfall days in December
Dayton, MO
- Average snowfall days in December: 2 days
The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Dayton, MO
- Average daylight in December: 9h and 30min
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 30min).
- Average sunshine in December: 5h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).
Average sunshine days in December
Dayton, MO
- Average sunshine days in December: 25.1 days
The month with the most sunshine days is January (25.2 days).
The month with the least sunshine days is May (12.8 days).
Average UV index in December
Dayton, 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
Dayton, MO
- Average cloud cover in December: 40
The month with the most cloud cover is March (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 26).
Average visibility in December
Dayton, 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).
