December weather forecastCosby, MO
December
Weather in December
The first month of the winter, December, is still a cold month in Cosby, Missouri, with an average temperature fluctuating between 25°F (-3.9°C) and 38.3°F (3.5°C).Temperature
Cosby's December weather features a mild decline in high-temperatures, reducing from a fresh 50.9°F (10.5°C) in November to a cold 38.3°F (3.5°C). Cosby, in December, witnesses an average low-temperature of 25°F (-3.9°C).Humidity
In December, the average relative humidity in Cosby is 76%.Rainfall
In December, the rain falls for 5.5 days. Throughout December, 1.1" (28mm) of precipitation is accumulated. In Cosby, during the entire year, the rain falls for 132.3 days and collects up to 27.28" (693mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Cosby. In December, in Cosby, it is snowing for 4.9 days. Throughout December, 1.73" (44mm) of snow is accumulated. Throughout the year, there are 25.5 snowfall days, and 10.91" (277mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:21 am and sunset at 4:54 pm. On the last day of December, sunrise is at 7:40 am and sunset at 5:04 pm CST.
Sunshine
The average sunshine in December in Cosby is 5.3h.UV index
The months with the lowest UV index in Cosby, Missouri, are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the average maximum UV index of 2 translates into the following recommendations:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Cosby, MO
- Average high temperature in December: 38.3°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 (34.2°F).
- Average low temperature in December: 25°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure in December
Cosby, 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 (29.88"Hg).
Average wind speed in December
Cosby, MO
- Average wind speed in December: 9.2mph
The windiest months (with the highest average wind speed) are February and March (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.4mph).
Average humidity in December
Cosby, MO
- Average humidity in December: 76%
The month with the highest relative humidity is June (79%).
The months with the lowest relative humidity are October and November (70%).
Average rainfall in December
Cosby, MO
- Average rainfall in December: 1.1"
The wettest month (with the highest rainfall) is May (4.02").
The driest months (with the least rainfall) are January and February (0.94").
Average rainfall days in December
Cosby, MO
- Average rainfall days in December: 5.5 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (3.8 days).
Average snowfall in December
Cosby, MO
- Average snowfall in December: 1.73"
The month with the highest snowfall is January (3.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Cosby, MO
- Average snowfall days in December: 4.9 days
The month with the highest number of snowfall days is February (7.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Cosby, MO
- Average daylight in December: 9h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 5h and 18min
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 48min).
Average sunshine days in December
Cosby, MO
- Average sunshine days in December: 21 days
The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in December
Cosby, 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
Cosby, MO
- Average cloud cover in December: 43
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in December
Cosby, 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).
