December weather forecastWaynesville, MO
December
Weather in December
The first month of the winter, December, is also a frosty month in Waynesville, Missouri, with an average temperature ranging between min 29.7°F (-1.3°C) and max 43.7°F (6.5°C).Temperature
Onset of December comes with a temperature decline, the average high falling from a fresh 54.3°F (12.4°C) in November to a frosty 43.7°F (6.5°C). During December, the average low-temperature in Waynesville is a freezing cold 29.7°F (-1.3°C).Humidity
In Waynesville, the average relative humidity in December is 76%.Rainfall
In Waynesville, in December, it is raining for 7.5 days, with typically 1.85" (47mm) of accumulated precipitation. Throughout the year, in Waynesville, there are 147.7 rainfall days, and 31.46" (799mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In December, in Waynesville, it is snowing for 5 days. Throughout December, 1.93" (49mm) of snow is accumulated. In Waynesville, during the entire year, snow falls for 23.8 days and aggregates up to 10.12" (257mm) of snow.Daylight
With an average of 9h and 36min of daylight, December has the shortest days of the year in Waynesville.On the first day of December in Waynesville, sunrise is at 7:06 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 5:00 pm CST.
Sunshine
In Waynesville, the average sunshine in December is 5.2h.UV index
The months with the lowest UV index in Waynesville are January, February and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high daily UV index of 2 during December translates into the following directions:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Experience reduced UV exposure by about half when donning a wide-brim hat. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Waynesville, MO
- Average high temperature in December: 43.7°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (40.3°F).
- Average low temperature in December: 29.7°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 (25°F).
Average pressure in December
Waynesville, MO
- Average pressure in December: 30.13"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
Waynesville, MO
- Average wind speed in December: 8.3mph
The windiest month (with the highest average wind speed) is January (8.7mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in December
Waynesville, MO
- Average humidity in December: 76%
The months with the highest relative humidity are March and May (77%).
The months with the lowest relative humidity are August, September and October (73%).
Average rainfall in December
Waynesville, MO
- Average rainfall in December: 1.85"
The wettest month (with the highest rainfall) is May (4.29").
The driest month (with the least rainfall) is January (1.61").
Average rainfall days in December
Waynesville, MO
- Average rainfall days in December: 7.5 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is December (7.5 days).
Average snowfall in December
Waynesville, MO
- Average snowfall in December: 1.93"
The month with the highest snowfall is February (3.54").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Waynesville, MO
- Average snowfall days in December: 5 days
The month with the highest number of snowfall days is February (7.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Waynesville, MO
- Average daylight in December: 9h and 36min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 5h and 12min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The months with the least sunshine are January and February (Average sunshine: 4h and 54min).
Average sunshine days in December
Waynesville, MO
- Average sunshine days in December: 19 days
The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is May (11.7 days).
Average UV index in December
Waynesville, 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 and December (UV index 2).
Average cloud cover in December
Waynesville, MO
- Average cloud cover in December: 46
The months with the most cloud cover are February and March (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in December
Waynesville, MO
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).





