December weather forecastRitchey, MO
December
Weather in December
The first month of the winter, December, is still a chilly month in Ritchey, Missouri, with an average temperature varying between 46°F (7.8°C) and 31.1°F (-0.5°C).Temperature
December's arrival correlates with a reduction in the average high-temperature, down from a moderate 56.1°F (13.4°C) in November to a frosty 46°F (7.8°C). Ritchey's average low-temperature during December nights is observed to be a subzero cold 31.1°F (-0.5°C).Humidity
In Ritchey, the average relative humidity in December is 74%.Rainfall
In Ritchey, in December, it is raining for 8.2 days, with typically 1.93" (49mm) of accumulated precipitation. Throughout the year, there are 151.1 rainfall days, and 33.35" (847mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Ritchey, in December, snow falls for 3.5 days, with typically accumulated 0.94" (24mm) of snow. In Ritchey, during the entire year, snow falls for 18 days and aggregates up to 6.26" (159mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 42min of daylight.On the first day of the month, sunrise is at 7:11 am and sunset at 5:00 pm. On the last day of December, sunrise is at 7:29 am and sunset at 5:10 pm CST.
Sunshine
In Ritchey, the average sunshine in December is 5.5h.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum high daily UV index of 2 during December translates into the following directions:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Ritchey, MO
- Average high temperature in December: 46°F
The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (43°F).
- Average low temperature in December: 31.1°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (27.5°F).
Average pressure in December
Ritchey, 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 (29.92"Hg).
Average wind speed in December
Ritchey, MO
- Average wind speed in December: 8.9mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).
Average humidity in December
Ritchey, MO
- Average humidity in December: 74%
The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are July, August and October (72%).
Average rainfall in December
Ritchey, MO
- Average rainfall in December: 1.93"
The wettest month (with the highest rainfall) is May (5.35").
The driest month (with the least rainfall) is February (1.77").
Average rainfall days in December
Ritchey, MO
- Average rainfall days in December: 8.2 days
The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is December (8.2 days).
Average snowfall in December
Ritchey, MO
- Average snowfall in December: 0.94"
The month with the highest snowfall is February (2.13").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Ritchey, MO
- Average snowfall days in December: 3.5 days
The month with the highest number of snowfall days is February (5.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Ritchey, MO
- Average daylight in December: 9h and 42min
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 42min).
- Average sunshine in December: 5h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in December
Ritchey, MO
- Average sunshine days in December: 19.2 days
The month with the most sunshine days is December (19.2 days).
The month with the least sunshine days is May (10.2 days).
Average UV index in December
Ritchey, MO
- Average UV index in December: 2
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in December
Ritchey, MO
- Average cloud cover in December: 41
The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in December
Ritchey, 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).





