December weather forecast
Sidney, OH

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Weather in December

The first month of the winter, December, is also a wintry month in Sidney, Ohio, with an average temperature varying between 37.8°F (3.2°C) and 27.5°F (-2.5°C).

Temperature

A change in temperatures is noted as November gives way to December, with average highs reducing from a chilly 48.4°F (9.1°C) to an icy 37.8°F (3.2°C). Sidney observes an average low-temperature of 27.5°F (-2.5°C) during December.

Humidity

The months with the highest humidity are January, February and December, with an average relative humidity of 83%.

Rainfall

In December, the rain falls for 7 days. Throughout December, 0.55" (14mm) of precipitation is accumulated. In Sidney, during the entire year, the rain falls for 111.7 days and collects up to 8.58" (218mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Sidney, in December, snow falls for 6.1 days, with typically accumulated 0.47" (12mm) of snow. Throughout the year, there are 27.1 snowfall days, and 2.8" (71mm) 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 December, sunrise is at 7:40 am and sunset at 5:11 pm. On the last day of the month, sunrise is at 7:59 am and sunset at 5:20 pm EST.

Sunshine

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

UV index

The months with the lowest UV index are January, February, October through December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum high UV index of 2 in December translates into the following recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Updated: Jul 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

December temperatures in Sidney vary between a high-temperature of 37.8°F (3.2°C) and a low-temperature of 27.5°F (-2.5°C).

What is the most humid month?

January, February and December, with an average relative humidity of 83%, are most humid months.

What is the average humidity in December in Sidney?

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

How much does it rain in December?

In Sidney, in December, during 7 rainfall days, 0.55" (14mm) of precipitation is typically accumulated.

How much does it snow in December?

In Sidney, in December, snow falls for 6.1 days, with typically accumulated 0.47" (12mm) of snow.

What is the month with the shortest days in Sidney?

With an average of 9h and 24min of daylight, December has the shortest days of the year in Sidney.

How many hours of daylight does Sidney have in December?

The average day length in December is 9h and 22min.

When is the sunrise / sunset in December in Sidney?

In December, on the first day of the month, sunrise is at 7:40 am and sunset at 5:11 pm. On the last day of the month, sunrise is at 7:59 am and sunset at 5:20 pm EST.

How long on average sun shines in December?

In Sidney, the average sunshine duration in December is 3.9h.

What is the month with the lowest UV index?

January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index intensity in December?

In Sidney, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health risk 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
Sidney, OH

Average temperature in December - Sidney, OH
  • Average high temperature in December: 37.8°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°F).

  • Average low temperature in December: 27.5°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 (20.1°F).

Average pressure in December
Sidney, OH

Average pressure in December - Sidney, OH
  • Average pressure in December: 30.11"Hg

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

Average wind speed in December
Sidney, OH

Average wind speed in December - Sidney, OH
  • Average wind speed in December: 9.8mph

The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

Average humidity in December
Sidney, OH

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

The months with the highest relative humidity are January, February and December (83%).
The month with the lowest relative humidity is October (75%).

Average rainfall in December
Sidney, OH

Average rainfall in December - Sidney, OH
  • Average rainfall in December: 0.55"

The wettest months (with the highest rainfall) are May and June (1.06").
The driest month (with the least rainfall) is November (0.47").

Average rainfall days in December
Sidney, OH

Average rainfall days in December - Sidney, OH
  • Average rainfall days in December: 7 days

The month with the highest number of rainy days is May (13.2 days).
The month with the least rainy days is February (5 days).

Average snowfall in December
Sidney, OH

Average snowfall in December - Sidney, OH
  • Average snowfall in December: 0.47"

The month with the highest snowfall is February (0.79").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Sidney, OH

Average snowfall days in December - Sidney, OH
  • Average snowfall days in December: 6.1 days

The month with the highest number of snowfall days is January (7.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Sidney, 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 month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

Average sunshine days in December
Sidney, OH

Average sunshine days in December - Sidney, OH
  • Average sunshine days in December: 21 days

The month with the most sunshine days is November (21.8 days).
The month with the least sunshine days is July (13.6 days).

Average UV index in December
Sidney, OH

Average UV index in December - Sidney, OH
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).

Average cloud cover in December
Sidney, OH

Average cloud cover in December - Sidney, 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
Sidney, OH

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

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

Sidney, Ohio, USA

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