December weather forecast
Mentor-on-the-Lake, OH

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Weather in December

The first month of the winter, December, is also an icy month in Mentor-on-the-Lake, Ohio, with an average temperature ranging between max 37.9°F (3.3°C) and min 30.2°F (-1°C).

Temperature

With the onset of December, Mentor-on-the-Lake experiences a modest temperature adjustment, with the average high-temperature gently receding from a chilly 46.8°F (8.2°C) in November to an icy 37.9°F (3.3°C). The temperature during December sees a subtle transition from day to night, averaging a low of 30.2°F (-1°C).

Humidity

In Mentor-on-the-Lake, the average relative humidity in December is 82%.

Rainfall

In December, in Mentor-on-the-Lake, Ohio, the rain falls for 11.4 days. Throughout December, 2.6" (66mm) of precipitation is accumulated. In Mentor-on-the-Lake, during the entire year, the rain falls for 178.9 days and collects up to 32.2" (818mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. In Mentor-on-the-Lake, in December, snow falls for 13.5 days, with typically accumulated 3.98" (101mm) of snow. Throughout the year, there are 64.4 snowfall days, and 19.92" (506mm) of snow is accumulated.

Daylight

December has the shortest days of the year in Mentor-on-the-Lake, with an average of 9h and 12min of daylight.
On the first day of the month, sunrise is at 7:33 am and sunset at 4:55 pm. On the last day of December, in Mentor-on-the-Lake, sunrise is at 7:52 am and sunset at 5:05 pm EST.

Sunshine

The average sunshine in December is 3.1h.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index. 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, a regular UV index of 1 translates into these guidelines:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.

Frequently asked questions

How cold is December?

In December, in Mentor-on-the-Lake, the average high-temperature is 37.9°F (3.3°C), and the average low-temperature is 30.2°F (-1°C).

What is the average humidity in December?

The average relative humidity in December is 82%.

How much does it rain in December?

In Mentor-on-the-Lake, in December, during 11.4 rainfall days, 2.6" (66mm) of precipitation is typically accumulated.

How many days does it snow in December?

In Mentor-on-the-Lake, during December, snow falls for 13.5 days and regularly aggregates up to 3.98" (101mm) of snow.

What is the month with the shortest days?

With an average of 9h and 12min of daylight, December has the shortest days of the year.

How many hours of daylight does Mentor-on-the-Lake have in December?

In Mentor-on-the-Lake, the average day length in December is 9h and 13min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:33 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 7:52 am and sunset at 5:05 pm EST.

How long on average sun shines in December?

The average sunshine duration in December is 3.1h.

When is the lowest UV index in Mentor-on-the-Lake?

With an average maximum UV index of 1, December is the month with the lowest UV index in Mentor-on-the-Lake.

What is the UV index reading in December?

The average daily maximum UV index in December is 1. 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
Mentor-on-the-Lake, OH

Average temperature in December - Mentor-on-the-Lake, OH
  • Average high temperature in December: 37.9°F

The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is January (31.1°F).

  • Average low temperature in December: 30.2°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).

Average pressure in December
Mentor-on-the-Lake, OH

Average pressure in December - Mentor-on-the-Lake, OH
  • Average pressure in December: 30.09"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Mentor-on-the-Lake, OH

Average wind speed in December - Mentor-on-the-Lake, OH
  • Average wind speed in December: 11.6mph

The windiest month (with the highest average wind speed) is January (11.7mph).
The calmest month (with the lowest average wind speed) is July (7mph).

Average humidity in December
Mentor-on-the-Lake, OH

Average humidity in December - Mentor-on-the-Lake, OH
  • Average humidity in December: 82%

The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are July and August (76%).

Average rainfall in December
Mentor-on-the-Lake, OH

Average rainfall in December - Mentor-on-the-Lake, OH
  • Average rainfall in December: 2.6"

The wettest month (with the highest rainfall) is June (3.23").
The driest month (with the least rainfall) is September (2.13").

Average rainfall days in December
Mentor-on-the-Lake, OH

Average rainfall days in December - Mentor-on-the-Lake, OH
  • Average rainfall days in December: 11.4 days

The month with the highest number of rainy days is October (18 days).
The month with the least rainy days is January (9 days).

Average snowfall in December
Mentor-on-the-Lake, OH

Average snowfall in December - Mentor-on-the-Lake, OH
  • Average snowfall in December: 3.98"

The month with the highest snowfall is February (5.31").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Mentor-on-the-Lake, OH

Average snowfall days in December - Mentor-on-the-Lake, OH
  • Average snowfall days in December: 13.5 days

The month with the highest number of snowfall days is January (17.4 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Mentor-on-the-Lake, OH

Average daylight in December / Average sunshine in December - Mentor-on-the-Lake, OH
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in December: 3h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).

Average sunshine days in December
Mentor-on-the-Lake, OH

Average sunshine days in December - Mentor-on-the-Lake, OH
  • Average sunshine days in December: 7.7 days

The month with the most sunshine days is May (11.4 days).
The month with the least sunshine days is January (6.8 days).

Average UV index in December
Mentor-on-the-Lake, OH

Average UV index in December - Mentor-on-the-Lake, 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
Mentor-on-the-Lake, OH

Average cloud cover in December - Mentor-on-the-Lake, 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 27).

Average visibility in December
Mentor-on-the-Lake, OH

Average visibility in December - Mentor-on-the-Lake, OH
  • Average visibility in December: 5mi

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

Mentor-on-the-Lake, Ohio, USA

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