December weather forecastWalnut Grove, MO
December
Weather in December
December, the first month of the winter in Walnut Grove, is still a chilly month, with an average temperature fluctuating between 30°F (-1.1°C) and 44.6°F (7°C).Temperature
The transition into December involves a decrease in the average high-temperature, falling from a fresh 54.9°F (12.7°C) in November to a frosty 44.6°F (7°C). In the month of December, an average of 30°F (-1.1°C) marks the low-temperature.Humidity
The average relative humidity in December in Walnut Grove is 75%.Rainfall
In Walnut Grove, in December, during 9.1 rainfall days, 2.01" (51mm) of precipitation is typically accumulated. In Walnut Grove, during the entire year, the rain falls for 167.3 days and collects up to 37.91" (963mm) of precipitation.Snowfall
January through May, November and December are months with snowfall. In Walnut Grove, in December, during 4.2 snowfall days, 0.87" (22mm) of snow is typically accumulated. In Walnut Grove, during the entire year, snow falls for 21.3 days and aggregates up to 8.94" (227mm) of snow.Daylight
December has the shortest days of the year in Walnut Grove, with an average of 9h and 36min of daylight.On the first day of the month, sunrise is at 7:10 am and sunset at 4:56 pm. On the last day of December, sunrise is at 7:28 am and sunset at 5:06 pm CST.
Sunshine
In Walnut Grove, the average sunshine in December is 5.5h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The average daily UV index of 2 in December transforms into the following instructions:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Walnut Grove, MO
- Average high temperature in December: 44.6°F
The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (41.5°F).
- Average low temperature in December: 30°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 (26.2°F).
Average pressure in December
Walnut Grove, 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 (29.93"Hg).
Average wind speed in December
Walnut Grove, MO
- Average wind speed in December: 9.3mph
The windiest months (with the highest average wind speed) are January and March (9.8mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).
Average humidity in December
Walnut Grove, MO
- Average humidity in December: 75%
The months with the highest relative humidity are March and May (77%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Walnut Grove, MO
- Average rainfall in December: 2.01"
The wettest month (with the highest rainfall) is May (5.63").
The driest month (with the least rainfall) is January (1.73").
Average rainfall days in December
Walnut Grove, MO
- Average rainfall days in December: 9.1 days
The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in December
Walnut Grove, MO
- Average snowfall in December: 0.87"
The month with the highest snowfall is February (3.11").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Walnut Grove, MO
- Average snowfall days in December: 4.2 days
The month with the highest number of snowfall days is February (6.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Walnut Grove, 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 30min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in December
Walnut Grove, MO
- Average sunshine days in December: 18.6 days
The month with the most sunshine days is December (18.6 days).
The month with the least sunshine days is July (9.3 days).
Average UV index in December
Walnut Grove, MO
- Average UV index in December: 2
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in December
Walnut Grove, MO
- Average cloud cover in December: 42
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in December
Walnut Grove, 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).





