December weather forecastGeorgetown, MO
December
Weather in December
December, the first month of the winter in Georgetown, is also a wintry month, with an average temperature fluctuating between 28.6°F (-1.9°C) and 41.5°F (5.3°C).Temperature
Transition from November to December is accompanied by a temperature drop, with average high-temperatures decreasing from a fresh 52.7°F (11.5°C) to a wintry 41.5°F (5.3°C). The average nighttime temperature lowers to a subzero cold 28.6°F (-1.9°C) throughout December.Humidity
The average relative humidity in December in Georgetown is 76%.Rainfall
In Georgetown, in December, it is raining for 5.5 days, with typically 0.87" (22mm) of accumulated precipitation. In Georgetown, Missouri, during the entire year, the rain falls for 121 days and collects up to 15.67" (398mm) of precipitation.Snowfall
Months with snowfall in Georgetown, Missouri, are January through May, October through December. In December, it is snowing for 4 days. Throughout December, 0.83" (21mm) of snow is accumulated. Throughout the year, there are 21.4 snowfall days, and 4.02" (102mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 7:12 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 5:01 pm CST.
Sunshine
The average sunshine in December in Georgetown is 5.2h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the ordinary person.Note: In December, the average maximum UV index of 2 translates into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Georgetown, MO
- Average high temperature in December: 41.5°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (37°F).
- Average low temperature in December: 28.6°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 (23.5°F).
Average pressure in December
Georgetown, 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 (29.91"Hg).
Average wind speed in December
Georgetown, MO
- Average wind speed in December: 9.4mph
The windiest months (with the highest average wind speed) are January, February and March (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.3mph).
Average humidity in December
Georgetown, MO
- Average humidity in December: 76%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Georgetown, MO
- Average rainfall in December: 0.87"
The wettest month (with the highest rainfall) is May (2.28").
The driest month (with the least rainfall) is January (0.71").
Average rainfall days in December
Georgetown, MO
- Average rainfall days in December: 5.5 days
The month with the highest number of rainy days is May (14.1 days).
The month with the least rainy days is December (5.5 days).
Average snowfall in December
Georgetown, MO
- Average snowfall in December: 0.83"
The month with the highest snowfall is January (1.1").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Georgetown, MO
- Average snowfall days in December: 4 days
The month with the highest number of snowfall days is January (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
Georgetown, MO
- Average daylight in December: 9h and 30min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 5h and 12min
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: 5h and 0min).
Average sunshine days in December
Georgetown, MO
- Average sunshine days in December: 21.4 days
The month with the most sunshine days is December (21.4 days).
The month with the least sunshine days is May (12.8 days).
Average UV index in December
Georgetown, 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
Georgetown, MO
- Average cloud cover in December: 44
The months with the most cloud cover are February and March (Cloud cover 47).
The months with the least cloud cover are June, July and August (Cloud cover 27).
Average visibility in December
Georgetown, 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).
