December weather forecast
Mechanicsburg, OH

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Weather in December

December, the first month of the winter in Mechanicsburg, is still a cold month, with an average temperature fluctuating between 38.1°F (3.4°C) and 28.6°F (-1.9°C).

Temperature

December shows a mild decline in the average high-temperature, falling from November's chilly 48.6°F (9.2°C) to a wintry 38.1°F (3.4°C). Throughout December, Mechanicsburg encounters an average temperature drop to a freezing cold 28.6°F (-1.9°C).

Humidity

In Mechanicsburg, the average relative humidity in December is 83%.

Rainfall

In December, the rain falls for 8.1 days. Throughout December, 1.46" (37mm) of precipitation is accumulated. In Mechanicsburg, during the entire year, the rain falls for 148.3 days and collects up to 21.57" (548mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. In Mechanicsburg, in December, during 6 snowfall days, 1.18" (30mm) of snow is typically accumulated. Throughout the year, there are 28 snowfall days, and 6.46" (164mm) of snow is accumulated.

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year in Mechanicsburg, Ohio.
On the first day of December, sunrise is at 7:37 am and sunset at 5:09 pm. On the last day of the month, sunrise is at 7:56 am and sunset at 5:18 pm EST.

Sunshine

In Mechanicsburg, the average sunshine in December is 3.9h.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, a daily maximum UV index of 1 leads to the following instructions:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Experience reduced UV exposure by about half when donning a wide-brim hat. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.

Frequently asked questions

How cold is it in December?

The average high-temperature and low-temperature during December are 38.1°F (3.4°C) and 28.6°F (-1.9°C) respectively.

What is the average humidity in December in Mechanicsburg?

In December, the average relative humidity is 83%.

How many days does it rain in December?

In December, in Mechanicsburg, the rain falls for 8.1 days. Throughout December, 1.46" (37mm) of precipitation is accumulated.

How many days does it snow in December?

In Mechanicsburg, during December, snow falls for 6 days and regularly aggregates up to 1.18" (30mm) of snow.

What is the month with the shortest days in Mechanicsburg?

The month with the shortest days in Mechanicsburg is December, with an average of 9h and 24min of daylight.

How many hours of daylight does Mechanicsburg have in December?

In Mechanicsburg, the average day length in December is 9h and 23min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:37 am and sunset at 5:09 pm. On the last day of the month, sunrise is at 7:56 am and sunset at 5:18 pm EST.

How many hours of sunshine does Mechanicsburg have in December?

In December, the average sunshine duration is 3.9h.

What is the month with the lowest UV index?

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

What is the UV index intensity in December?

In December, the average daily maximum UV index is 1. A UV Index value of 2, and less, symbolizes a low health threat from unprotected exposure to UV radiation.
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
Mechanicsburg, OH

Average temperature in December - Mechanicsburg, OH
  • Average high temperature in December: 38.1°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (32.2°F).

  • Average low temperature in December: 28.6°F

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).

Average pressure in December
Mechanicsburg, OH

Average pressure in December - Mechanicsburg, OH
  • Average pressure in December: 30.12"Hg

The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Mechanicsburg, OH

Average wind speed in December - Mechanicsburg, OH
  • Average wind speed in December: 9.7mph

The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

Average humidity in December
Mechanicsburg, OH

Average humidity in December - Mechanicsburg, OH
  • Average humidity in December: 83%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (75%).

Average rainfall in December
Mechanicsburg, OH

Average rainfall in December - Mechanicsburg, OH
  • Average rainfall in December: 1.46"

The wettest month (with the highest rainfall) is May (2.99").
The driest month (with the least rainfall) is November (1.22").

Average rainfall days in December
Mechanicsburg, OH

Average rainfall days in December - Mechanicsburg, OH
  • Average rainfall days in December: 8.1 days

The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is February (6.5 days).

Average snowfall in December
Mechanicsburg, OH

Average snowfall in December - Mechanicsburg, OH
  • Average snowfall in December: 1.18"

The month with the highest snowfall is February (1.89").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Mechanicsburg, OH

Average snowfall days in December - Mechanicsburg, OH
  • Average snowfall days in December: 6 days

The month with the highest number of snowfall days is February (7.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Mechanicsburg, OH

Average daylight in December / Average sunshine in December - Mechanicsburg, OH
  • 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: 3h and 5min

The months with the most sunshine are July and August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).

Average sunshine days in December
Mechanicsburg, OH

Average sunshine days in December - Mechanicsburg, OH
  • Average sunshine days in December: 17 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (10.3 days).

Average UV index in December
Mechanicsburg, OH

Average UV index in December - Mechanicsburg, 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
Mechanicsburg, OH

Average cloud cover in December - Mechanicsburg, OH
  • Average cloud cover in December: 60

The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in December
Mechanicsburg, OH

Average visibility in December - Mechanicsburg, OH
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (6mi).
The month with the lowest visibility is September (5mi).

Mechanicsburg, Ohio, USA

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