December weather forecastMillersville, MO
December
Weather in December
December, the first month of the winter in Millersville, is also a frosty month, with an average temperature fluctuating between 45°F (7.2°C) and 32.5°F (0.3°C).Temperature
With December's arrival, Millersville sees a decrease in average high-temperatures, moving from a fresh 54.5°F (12.5°C) in November to a frosty 45°F (7.2°C). In Millersville, December nights cool down to an average of 32.5°F (0.3°C).Humidity
The average relative humidity in December is 77%.Rainfall
In Millersville, in December, during 10.4 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. In Millersville, Missouri, during the entire year, the rain falls for 157.5 days and collects up to 34.41" (874mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In Millersville, in December, snow falls for 1.9 days, with typically accumulated 1.02" (26mm) of snow. In Millersville, during the entire year, snow falls for 13.1 days and aggregates up to 5.83" (148mm) of snow.Daylight
The month with the shortest days in Millersville is December, with an average of 9h and 36min of daylight.On the first day of December, sunrise is at 6:55 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 4:51 pm CST.
Sunshine
In Millersville, the average sunshine in December is 4.9h.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum UV index of 2 in December translates into the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Take precaution! The reflection from snow can almost 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
Millersville, MO
- Average high temperature in December: 45°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (40.5°F).
- Average low temperature in December: 32.5°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (27.1°F).
Average pressure in December
Millersville, 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
Millersville, MO
- Average wind speed in December: 8.5mph
The windiest months (with the highest average wind speed) are January and February (9mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in December
Millersville, MO
- Average humidity in December: 77%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Millersville, MO
- Average rainfall in December: 2.24"
The wettest month (with the highest rainfall) is April (4.25").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in December
Millersville, MO
- Average rainfall days in December: 10.4 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (9.8 days).
Average snowfall in December
Millersville, MO
- Average snowfall in December: 1.02"
The month with the highest snowfall is February (2.32").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Millersville, MO
- Average snowfall days in December: 1.9 days
The month with the highest number of snowfall days is January (4.3 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
Millersville, 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: 4h and 54min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are January and February (Average sunshine: 4h and 48min).
Average sunshine days in December
Millersville, MO
- Average sunshine days in December: 18.3 days
The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is July (11.8 days).
Average UV index in December
Millersville, 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
Millersville, MO
- Average cloud cover in December: 47
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in December
Millersville, 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).





