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
Salem in December experiences a subtle temperature decline, with average high-temperatures reducing from a fresh 53.4°F (11.9°C) in November to a chilly 43.5°F (6.4°C). The average temperature during December nights dips to a subzero cold 29.7°F (-1.3°C).Humidity
The average relative humidity in December is 78%.Rainfall
In December, the rain falls for 8.2 days. Throughout December, 2.28" (58mm) of precipitation is accumulated. Throughout the year, in Salem, there are 151.7 rainfall days, and 33.98" (863mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. In Salem, Missouri, in December, snow falls for 4.5 days, with typically accumulated 1.65" (42mm) of snow. Throughout the year, there are 24 snowfall days, and 10.98" (279mm) of snow is accumulated.Daylight
With an average of 9h and 36min of daylight, December has the shortest days of the year in Salem.On the first day of the month, sunrise is at 7:03 am and sunset at 4:47 pm. On the last day of December, in Salem, sunrise is at 7:21 am and sunset at 4:57 pm CST.
Sunshine
In Salem, the average sunshine in December is 4.9h.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 reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for average individuals.Note: The average daily UV index of 2 in December transforms into the following instructions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Frequently asked questions
Is December cold in Salem?
What is the average humidity in December in Salem?
How many days does it rain in December in Salem?
How many days does it snow in December in Salem?
What is the month with the shortest days in Salem?
How many hours of daylight does Salem have in December?
When is the sunrise / sunset in December in Salem?
How many hours of sunshine does Salem have in December?
What are the months with the lowest UV index in Salem?
What is the UV index reading in December in Salem?
Average temperature in December
Salem, MO
- Average high temperature in December: 43.5°F
The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is January (39.9°F).
- Average low temperature in December: 29.7°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).
Average pressure in December
Salem, MO
- Average pressure in December: 30.13"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
Salem, MO
- Average wind speed in December: 7.8mph
The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in December
Salem, MO
- Average humidity in December: 78%
The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Salem, MO
- Average rainfall in December: 2.28"
The wettest month (with the highest rainfall) is May (4.13").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in December
Salem, MO
- Average rainfall days in December: 8.2 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in December
Salem, MO
- Average snowfall in December: 1.65"
The month with the highest snowfall is February (4.25").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Salem, MO
- Average snowfall days in December: 4.5 days
The months with the highest number of snowfall days are January and February (6.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Salem, 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: 4h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in December
Salem, MO
- Average sunshine days in December: 18.2 days
The month with the most sunshine days is October (18.9 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in December
Salem, 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
Salem, MO
- Average cloud cover in December: 49
The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility in December
Salem, MO
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, June, October, November and December (6mi).
The months with the lowest visibility are January, May, July, August and September (5mi).
Salem, Missouri, USA
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