December weather forecastMelby, MO
December
Weather in December
December, the first month of the winter in Melby, is still a chilly month, with an average temperature ranging between min 34.2°F (1.2°C) and max 46.8°F (8.2°C).Temperature
Melby's average high-temperature decreases in December, falling from a mild 56.1°F (13.4°C) in November to a frosty 46.8°F (8.2°C). In the month of December, the average temperature in Melby, Missouri, dips to a wintry 34.2°F (1.2°C) during the night.Humidity
In Melby, Missouri, the average relative humidity in December is 77%.Rainfall
In Melby, Missouri, in December, it is raining for 10.6 days, with typically 2.87" (73mm) of accumulated precipitation. In Melby, during the entire year, the rain falls for 156.9 days and collects up to 38.9" (988mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In Melby, in December, snow falls for 1.6 days, with typically accumulated 0.71" (18mm) of snow. In Melby, Missouri, during the entire year, snow falls for 9.2 days and aggregates up to 4.65" (118mm) 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 6:53 am and sunset at 4:43 pm. On the last day of December, in Melby, sunrise is at 7:11 am and sunset at 4:54 pm CST.
Sunshine
The average sunshine in December is 5h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In December, the maximum UV index of 2 transforms into these recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. When the Sun is at its strongest around midday, find shade and limit exposure. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Melby, MO
- Average high temperature in December: 46.8°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (42.6°F).
- Average low temperature in December: 34.2°F
The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).
Average pressure in December
Melby, MO
- Average pressure in December: 30.14"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
Melby, MO
- Average wind speed in December: 8.6mph
The windiest month (with the highest average wind speed) is February (9.5mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in December
Melby, MO
- Average humidity in December: 77%
The month with the highest relative humidity is March (78%).
The month with the lowest relative humidity is October (68%).
Average rainfall in December
Melby, MO
- Average rainfall in December: 2.87"
The wettest month (with the highest rainfall) is April (4.61").
The driest month (with the least rainfall) is September (1.77").
Average rainfall days in December
Melby, MO
- Average rainfall days in December: 10.6 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is November (9.8 days).
Average snowfall in December
Melby, MO
- Average snowfall in December: 0.71"
The month with the highest snowfall is February (1.57").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Melby, MO
- Average snowfall days in December: 1.6 days
The month with the highest number of snowfall days is February (2.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Melby, MO
- Average daylight in December: 9h and 42min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
Melby, MO
- Average sunshine days in December: 18.1 days
The month with the most sunshine days is October (18.9 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in December
Melby, MO
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Melby, MO
- Average cloud cover in December: 45
The months with the most cloud cover are February and March (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility in December
Melby, 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).





