December weather forecast
Petroleum, OH

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Weather in December

December, the first month of the winter in Petroleum, is still a cold month, with an average temperature fluctuating between 26.8°F (-2.9°C) and 37.6°F (3.1°C).

Temperature

December indicates a shift in the average high-temperature, from November's frosty 47.1°F (8.4°C) to an icy 37.6°F (3.1°C). During December, Petroleum's temperature averages to a freezing cold 26.8°F (-2.9°C) at night.

Humidity

In December, the average relative humidity in Petroleum is 86%.

Rainfall

In Petroleum, in December, it is raining for 12.7 days, with typically 2.72" (69mm) of accumulated precipitation. In Petroleum, during the entire year, the rain falls for 182.1 days and collects up to 34.8" (884mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Petroleum, in December, snow falls for 15.5 days, with typically accumulated 5.98" (152mm) of snow. In Petroleum, Ohio, during the entire year, snow falls for 76.4 days and aggregates up to 31.69" (805mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 18min of daylight.
On the first day of the month, sunrise is at 7:28 am and sunset at 4:54 pm. On the last day of December, sunrise is at 7:47 am and sunset at 5:03 pm EST.

Sunshine

In Petroleum, the average sunshine in December is 2.9h.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In December, the maximum UV index of 1 translates into these guidelines:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Stay sun-safe with clothing that is both closely woven and worn loosely. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.

Frequently asked questions

Is it cold during December?

The high-temperature, in December, in Petroleum, is 37.6°F (3.1°C), while the low-temperature averages to 26.8°F (-2.9°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, in July is computed to be 86°F (30°C).

What is the average humidity in December?

The average relative humidity in December is 86%.

How much does it rain in December?

In Petroleum, in December, it is raining for 12.7 days, with typically 2.72" (69mm) of accumulated precipitation.

How much does it snow in December?

In Petroleum, during December, snow falls for 15.5 days and regularly aggregates up to 5.98" (152mm) 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?

In Petroleum, the average day length in December is 9h and 16min.

When are sunrise and sunset in December?

On the first day of December, sunrise is at 7:28 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 7:47 am and sunset at 5:03 pm EST.

How many hours of sunshine does Petroleum have in December?

In Petroleum, Ohio, the average sunshine duration in December is 2.9h.

What is the month with the lowest UV index?

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

How high is the UV index in December?

The average daily maximum UV index in December is 1. A UV Index reading of 2, and below, represents a minimal hazard to health 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
Petroleum, OH

Average temperature in December - Petroleum, OH
  • Average high temperature in December: 37.6°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.1°F).

  • Average low temperature in December: 26.8°F

The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).

Average pressure in December
Petroleum, OH

Average pressure in December - Petroleum, OH
  • Average pressure in December: 30.09"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in December
Petroleum, OH

Average wind speed in December - Petroleum, OH
  • Average wind speed in December: 7.5mph

The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest month (with the lowest average wind speed) is July (5mph).

Average humidity in December
Petroleum, OH

Average humidity in December - Petroleum, OH
  • Average humidity in December: 86%

The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are May, July and August (78%).

Average rainfall in December
Petroleum, OH

Average rainfall in December - Petroleum, OH
  • Average rainfall in December: 2.72"

The wettest month (with the highest rainfall) is June (3.66").
The driest month (with the least rainfall) is September (2.2").

Average rainfall days in December
Petroleum, OH

Average rainfall days in December - Petroleum, OH
  • Average rainfall days in December: 12.7 days

The month with the highest number of rainy days is May (19.5 days).
The month with the least rainy days is January (9.3 days).

Average snowfall in December
Petroleum, OH

Average snowfall in December - Petroleum, OH
  • Average snowfall in December: 5.98"

The month with the highest snowfall is January (8.62").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Petroleum, OH

Average snowfall days in December - Petroleum, OH
  • Average snowfall days in December: 15.5 days

The month with the highest number of snowfall days is January (20.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Petroleum, 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: 2h 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: 2h and 30min).

Average sunshine days in December
Petroleum, OH

Average sunshine days in December - Petroleum, OH
  • Average sunshine days in December: 7.6 days

The month with the most sunshine days is September (12.7 days).
The month with the least sunshine days is February (6 days).

Average UV index in December
Petroleum, OH

Average UV index in December - Petroleum, 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
Petroleum, OH

Average cloud cover in December - Petroleum, OH
  • Average cloud cover in December: 69

The month with the most cloud cover is January (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 35).

Average visibility in December
Petroleum, OH

Average visibility in December - Petroleum, OH
  • Average visibility in December: 4mi

The months with the highest visibility are March, April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February and December (4mi).

Petroleum, Ohio, USA

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