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 arrival of December corresponds with a reduction in the average high-temperature, down from November's frosty 47.7°F (8.7°C) to an icy 37.4°F (3°C). In the month of December, the temperature in West Salem generally rests at an average low of 26.8°F (-2.9°C).Humidity
In December, the average relative humidity in West Salem, Ohio, is 85%.Rainfall
In West Salem, during December, the rain falls for 7 days and regularly aggregates up to 0.79" (20mm) of precipitation. Throughout the year, in West Salem, there are 128.1 rainfall days, and 13.31" (338mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in West Salem, Ohio. In West Salem, in December, during 6.9 snowfall days, 0.91" (23mm) of snow is typically accumulated. Throughout the year, in West Salem, there are 38.5 snowfall days, and 5.55" (141mm) of snow is accumulated.Daylight
The month with the shortest days in West Salem is December, with an average of 9h and 18min of daylight.On the first day of December in West Salem, sunrise is at 7:34 am and sunset at 5:00 pm. On the last day of the month, sunrise is at 7:53 am and sunset at 5:10 pm EST.
Sunshine
In West Salem, the average sunshine in December is 3.4h.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index in West Salem. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 1 suggests this advice:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Experience reduced UV exposure by about half when donning a wide-brim hat. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
How cold is December in West Salem?
What is the average humidity in December in West Salem?
How much does it rain in West Salem in December?
How much does it snow in West Salem in December?
What is the month with the shortest days in West Salem?
What is the average length of the day in December in West Salem?
What time are sunrise and sunset in December in West Salem?
How many hours of sunshine does West Salem have in December?
When is the lowest UV index in West Salem?
How high is the UV index in December in West Salem?
Average temperature in December
West Salem, OH
- Average high temperature in December: 37.4°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (30.9°F).
- Average low temperature in December: 26.8°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in December
West Salem, OH
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
West Salem, OH
- Average wind speed in December: 8.7mph
The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest month (with the lowest average wind speed) is July (5.6mph).
Average humidity in December
West Salem, OH
- Average humidity in December: 85%
The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are April and November (78%).
Average rainfall in December
West Salem, OH
- Average rainfall in December: 0.79"
The wettest month (with the highest rainfall) is July (1.69").
The driest month (with the least rainfall) is February (0.75").
Average rainfall days in December
West Salem, OH
- Average rainfall days in December: 7 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (4.9 days).
Average snowfall in December
West Salem, OH
- Average snowfall in December: 0.91"
The month with the highest snowfall is February (1.81").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
West Salem, OH
- Average snowfall days in December: 6.9 days
The month with the highest number of snowfall days is February (10.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
West Salem, OH
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 3h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in December
West Salem, OH
- Average sunshine days in December: 18.8 days
The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is May (11.8 days).
Average UV index in December
West Salem, OH
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
West Salem, OH
- Average cloud cover in December: 65
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
West Salem, OH
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
West Salem, Ohio, USA
Weather forecast for your location
2. Allow the app to use your location
