December weather forecast
West Salem, OH

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Weather in December

December, the first month of the winter in West Salem, is also an icy month, with temperature in the range of an average high of 37.4°F (3°C) and an average low of 26.8°F (-2.9°C).

Temperature

West Salem's transition into December involves a shift in temperature, receding from a frosty 47.7°F (8.7°C) in November to an icy 37.4°F (3°C). West Salem temperatures generally rest at a low of 26.8°F (-2.9°C) during the December nights.

Humidity

The average relative humidity in December is 85%.

Rainfall

In West Salem, in December, during 7 rainfall days, 0.79" (20mm) of precipitation is typically accumulated. In West Salem, during the entire year, the rain falls for 128.1 days and collects up to 13.31" (338mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In December, it is snowing for 6.9 days. Throughout December, 0.91" (23mm) of snow is accumulated. In West Salem, during the entire year, snow falls for 38.5 days and aggregates up to 5.55" (141mm) of snow.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:34 am and sunset at 5:00 pm. On the last day of December, 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

December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: During December, 1 as the daily maximum UV index converts into the following advice:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Updated: Jun 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

December temperatures vary between a high-temperature of 37.4°F (3°C) and a low-temperature of 26.8°F (-2.9°C). In July, the average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, is computed to be 86°F (30°C).

What is the average humidity in December in West Salem?

In December, the average relative humidity is 85%.

How many days does it rain in December?

In West Salem, during December, the rain falls for 7 days and regularly aggregates up to 0.79" (20mm) of precipitation.

How many days does it snow in December?

In West Salem, during December, snow falls for 6.9 days and regularly aggregates up to 0.91" (23mm) of snow.

What is the month with the shortest days?

With an average of 9h and 18min of daylight, December has the shortest days of the year.

What is the average length of the day in December?

The average day length in December is 9h and 17min.

When are sunrise and sunset in December in West Salem?

In December, on the first day of the month, 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.

How many hours of sunshine does West Salem have in December?

In December, the average sunshine duration is 3.4h.

What is the month with the lowest UV index?

December is the month with the lowest UV index, with an average maximum UV index of 1.

What is the UV index intensity in December?

In December, the average daily maximum UV index is 1. A UV Index reading of 2, and below, represents a low health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
West Salem, OH

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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 / 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 - 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 - 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 - 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 - 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

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