December weather forecastPlatte City, MO
December
Weather in December
December, the first month of the winter in Platte City, is also a wintry month, with an average temperature varying between 26.8°F (-2.9°C) and 40.1°F (4.5°C).Temperature
The start of December involves a temperature drop, moving from a cool 52°F (11.1°C) in November to a wintry 40.1°F (4.5°C). During December, Platte City experiences an average low-temperature of 26.8°F (-2.9°C) at night.Humidity
The average relative humidity in December is 75%.Rainfall
In Platte City, during December, the rain falls for 5.5 days and regularly aggregates up to 1.1" (28mm) of precipitation. In Platte City, during the entire year, the rain falls for 134.1 days and collects up to 26.5" (673mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Platte City, during December, snow falls for 3.8 days and regularly aggregates up to 1.22" (31mm) of snow. In Platte City, during the entire year, snow falls for 21.8 days and aggregates up to 9.65" (245mm) of snow.Daylight
December has the shortest days of the year in Platte City, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:20 am and sunset at 4:56 pm. On the last day of December, sunrise is at 7:38 am and sunset at 5:05 pm CST.
Sunshine
The average sunshine in December in Platte City is 5.4h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Platte City. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 2 transforms into these recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Platte City, MO
- Average high temperature in December: 40.1°F
The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in December: 26.8°F
The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).
Average pressure in December
Platte City, 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
Platte City, MO
- Average wind speed in December: 9.3mph
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 August (6.3mph).
Average humidity in December
Platte City, MO
- Average humidity in December: 75%
The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are October and November (70%).
Average rainfall in December
Platte City, MO
- Average rainfall in December: 1.1"
The wettest month (with the highest rainfall) is May (3.66").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days in December
Platte City, MO
- Average rainfall days in December: 5.5 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in December
Platte City, MO
- Average snowfall in December: 1.22"
The month with the highest snowfall is February (3.11").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Platte City, MO
- Average snowfall days in December: 3.8 days
The month with the highest number of snowfall days is February (6.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Platte City, MO
- Average daylight in December: 9h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 5h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in December
Platte City, MO
- Average sunshine days in December: 21.8 days
The month with the most sunshine days is December (21.8 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in December
Platte City, 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, November and December (UV index 2).
Average cloud cover in December
Platte City, MO
- Average cloud cover in December: 41
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in December
Platte City, 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).





