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
The coldest time of the year is December, with temperatures averaging a high of 32.4°F (0.2°C) and a low of 16.2°F (-8.8°C).Humidity
In December, the average relative humidity is 80%.Rainfall
The wettest months are January and December, with an average 1.46" (37mm) of rainfall.Snowfall
Months with snowfall are January through May, October through December. In Salem, in December, during 12.2 snowfall days, 6.77" (172mm) of snow is typically accumulated. Throughout the year, there are 54.1 snowfall days, and 33.5" (851mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:30 am and sunset at 5:01 pm. On the last day of December, sunrise is at 7:48 am and sunset at 5:11 pm MST.
Sunshine
In December, the average sunshine is 5.9h.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 exposure to the Sun's UV radiation for average individuals.Note: The daily high UV index of 2 during December translates into the following recommendations:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
How cold is December?
What is the average humidity in December?
What is the wettest month in Salem?
How much does it rain in December?
How many days does it snow in December in Salem?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Salem have in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Salem, UT
- Average high temperature in December: 32.4°F
The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is December (32.4°F).
- Average low temperature in December: 16.2°F
The month with the highest average low temperature is July (55.9°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in December
Salem, UT
- Average pressure in December: 30.21"Hg
The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in December
Salem, UT
- Average wind speed in December: 4.8mph
The windiest month (with the highest average wind speed) is June (5.9mph).
The calmest month (with the lowest average wind speed) is January (4.5mph).
Average humidity in December
Salem, UT
- Average humidity in December: 80%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is July (39%).
Average rainfall in December
Salem, UT
- Average rainfall in December: 1.46"
The wettest months (with the highest rainfall) are January and December (1.46").
The driest month (with the least rainfall) is August (0.51").
Average rainfall days in December
Salem, UT
- Average rainfall days in December: 10.1 days
The month with the highest number of rainy days is March (13.3 days).
The month with the least rainy days is June (6 days).
Average snowfall in December
Salem, UT
- Average snowfall in December: 6.77"
The month with the highest snowfall is January (8.66").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Salem, UT
- Average snowfall days in December: 12.2 days
The month with the highest number of snowfall days is December (12.2 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, UT
- Average daylight in December: 9h and 2min
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 5min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).
Average sunshine days in December
Salem, UT
- Average sunshine days in December: 15.1 days
The month with the most sunshine days is June (21.3 days).
The month with the least sunshine days is February (10.9 days).
Average UV index in December
Salem, UT
- Average UV index in December: 2
The month with the highest UV index is July (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, UT
- Average cloud cover in December: 38
The month with the most cloud cover is February (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 10).
Average visibility in December
Salem, UT
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
Salem, Utah, USA
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