December weather forecastAltamont, MO
December
Weather in December
The first month of the winter, December, is also an icy month in Altamont, Missouri, with an average temperature ranging between max 38.3°F (3.5°C) and min 25.7°F (-3.5°C).Temperature
December is characterized by a reduction in the average high-temperature, from a cool 50.9°F (10.5°C) in November to a cold 38.3°F (3.5°C). Throughout the month of December, Altamont observes an average nighttime temperature of 25.7°F (-3.5°C).Humidity
In December, the average relative humidity is 77%.Rainfall
In Altamont, in December, it is raining for 6.1 days, with typically 1.1" (28mm) of accumulated precipitation. In Altamont, Missouri, during the entire year, the rain falls for 129.6 days and collects up to 26.02" (661mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Altamont, during December, snow falls for 5.1 days and regularly aggregates up to 1.42" (36mm) of snow. In Altamont, during the entire year, snow falls for 25.5 days and aggregates up to 11.61" (295mm) of snow.Daylight
December has the shortest days of the year in Altamont, with an average of 9h and 24min of daylight.On the first day of December, sunrise is at 7:19 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 5:01 pm CST.
Sunshine
The average sunshine in December is 5.1h.UV index
January, February, November 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 health risk from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index, 2 in December, converts 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. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Stay sun-safe with clothing that is both closely woven and worn loosely. 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
Average temperature in December
Altamont, MO
- Average high temperature in December: 38.3°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (34°F).
- Average low temperature in December: 25.7°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 (20.1°F).
Average pressure in December
Altamont, 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 (29.89"Hg).
Average wind speed in December
Altamont, MO
- Average wind speed in December: 9.1mph
The windiest month (with the highest average wind speed) is March (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in December
Altamont, MO
- Average humidity in December: 77%
The months with the highest relative humidity are May, June and July (80%).
The months with the lowest relative humidity are October and November (71%).
Average rainfall in December
Altamont, MO
- Average rainfall in December: 1.1"
The wettest month (with the highest rainfall) is June (3.82").
The driest month (with the least rainfall) is February (0.94").
Average rainfall days in December
Altamont, MO
- Average rainfall days in December: 6.1 days
The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is January (4.2 days).
Average snowfall in December
Altamont, MO
- Average snowfall in December: 1.42"
The month with the highest snowfall is January (3.9").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Altamont, MO
- Average snowfall days in December: 5.1 days
The month with the highest number of snowfall days is January (7.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Altamont, MO
- Average daylight in December: 9h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 5h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in December
Altamont, MO
- Average sunshine days in December: 21.1 days
The month with the most sunshine days is December (21.1 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in December
Altamont, MO
- Average UV index in December: 2
The months with the highest UV index are 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
Altamont, MO
- Average cloud cover in December: 44
The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in December
Altamont, 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).
