Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December brings a decrease in the average high-temperature, falling from November's fresh 54.3°F (12.4°C) to a frosty 44.2°F (6.8°C). An average low-temperature of 30.2°F (-1°C) is anticipated throughout the nights during December.Humidity
The average relative humidity in December in Graff is 77%.Rainfall
In Graff, Missouri, in December, it is raining for 8.8 days, with typically 2.01" (51mm) of accumulated precipitation. Throughout the year, in Graff, there are 154.1 rainfall days, and 32.83" (834mm) of precipitation is accumulated.Snowfall
January through May, November and December are months with snowfall. In Graff, during December, snow falls for 2.5 days and regularly aggregates up to 0.63" (16mm) of snow. In Graff, during the entire year, snow falls for 15.4 days and aggregates up to 6.61" (168mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 36min of daylight.On the first day of the month, sunrise is at 7:05 am and sunset at 4:51 pm. On the last day of December, in Graff, sunrise is at 7:23 am and sunset at 5:01 pm CST.
Sunshine
The average sunshine in December is 5.3h.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: A daily maximum UV index of 2 in December translates into the following instructions:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in Graff in December?
What is the average humidity in December in Graff?
How much does it rain in Graff in December?
How much does it snow in Graff in December?
What is the month with the shortest days in Graff?
What is the average length of the day in December in Graff?
When is the sunrise / sunset in December in Graff?
How many hours of sunshine does Graff have in December?
When is the lowest UV index in Graff?
What is the UV index reading in December in Graff?
Average temperature in December
Graff, MO
- Average high temperature in December: 44.2°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (40.8°F).
- Average low temperature in December: 30.2°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in December
Graff, 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
Graff, MO
- Average wind speed in December: 8.3mph
The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest month (with the lowest average wind speed) is July (5.4mph).
Average humidity in December
Graff, MO
- Average humidity in December: 77%
The months with the highest relative humidity are March and May (79%).
The months with the lowest relative humidity are August, September and October (74%).
Average rainfall in December
Graff, MO
- Average rainfall in December: 2.01"
The wettest month (with the highest rainfall) is May (4.06").
The driest month (with the least rainfall) is February (1.77").
Average rainfall days in December
Graff, MO
- Average rainfall days in December: 8.8 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in December
Graff, MO
- Average snowfall in December: 0.63"
The month with the highest snowfall is January (2.4").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Graff, MO
- Average snowfall days in December: 2.5 days
The month with the highest number of snowfall days is January (5 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Graff, MO
- Average daylight in December: 9h and 4min
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: 5h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in December
Graff, MO
- Average sunshine days in December: 19.7 days
The month with the most sunshine days is December (19.7 days).
The month with the least sunshine days is August (11.5 days).
Average UV index in December
Graff, 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
Graff, MO
- Average cloud cover in December: 45
The month with the most cloud cover is March (Cloud cover 49).
The months with the least cloud cover are June and August (Cloud cover 30).
Average visibility in December
Graff, MO
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are May and July (5mi).
Graff, Missouri, USA
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