December weather forecast
Marengo, OH

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Weather in December

December, the first month of the winter in Marengo, is also an icy month, with an average temperature ranging between min 27.5°F (-2.5°C) and max 37.8°F (3.2°C).

Temperature

Marengo, Ohio, experiences a temperature shift at the start of December, with average high-temperatures adjusting from a chilly 48.2°F (9°C) in November to a cold 37.8°F (3.2°C). Marengo records an average nighttime low of 27.5°F (-2.5°C) in December.

Humidity

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

Rainfall

In December, in Marengo, the rain falls for 9.7 days. Throughout December, 1.77" (45mm) of precipitation is accumulated. In Marengo, Ohio, during the entire year, the rain falls for 163.8 days and collects up to 25.08" (637mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Marengo. In December, in Marengo, it is snowing for 9.2 days. Throughout December, 2.09" (53mm) of snow is accumulated. In Marengo, during the entire year, snow falls for 42 days and aggregates up to 9.06" (230mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 18min of daylight.
On the first day of the month, sunrise is at 7:35 am and sunset at 5:05 pm. On the last day of December, in Marengo, sunrise is at 7:54 am and sunset at 5:14 pm EST.

Sunshine

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

UV index

January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Marengo. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The daily high UV index of 2 during December translates into the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December in Marengo?

An average high-temperature, in December, in Marengo, is 37.8°F (3.2°C) and the average low-temperature is 27.5°F (-2.5°C).

What is the average humidity in December in Marengo?

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

How many days does it rain in December in Marengo?

In Marengo, Ohio, during December, the rain falls for 9.7 days and regularly aggregates up to 1.77" (45mm) of precipitation.

How much does it snow in Marengo in December?

In December, in Marengo, Ohio, it is snowing for 9.2 days. Throughout December, 2.09" (53mm) of snow is accumulated.

What is the month with the shortest days in Marengo?

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

What is the average length of the day in December in Marengo?

In December, the average day length in Marengo is 9h and 21min.

When are sunrise and sunset in December in Marengo?

On the first day of December, sunrise is at 7:35 am and sunset at 5:05 pm. On the last day of the month, sunrise is at 7:54 am and sunset at 5:14 pm EST.

How many hours of sunshine does Marengo have in December?

The average sunshine duration in December in Marengo is 3.9h.

What are the months with the lowest UV index in Marengo?

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

How high is the UV index in December in Marengo?

In December, the average daily maximum UV index in Marengo, Ohio, is 2. A UV Index of 2, and less, symbolizes 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
Marengo, OH

Average temperature in December - Marengo, OH
  • Average high temperature in December: 37.8°F

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (31.5°F).

  • Average low temperature in December: 27.5°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

Average pressure in December
Marengo, OH

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

The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in December
Marengo, OH

Average wind speed in December - Marengo, OH
  • Average wind speed in December: 9.3mph

The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

Average humidity in December
Marengo, OH

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

The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are April and November (77%).

Average rainfall in December
Marengo, OH

Average rainfall in December - Marengo, OH
  • Average rainfall in December: 1.77"

The wettest month (with the highest rainfall) is May (3.03").
The driest months (with the least rainfall) are January and February (1.61").

Average rainfall days in December
Marengo, OH

Average rainfall days in December - Marengo, OH
  • Average rainfall days in December: 9.7 days

The month with the highest number of rainy days is May (19.7 days).
The month with the least rainy days is January (8.1 days).

Average snowfall in December
Marengo, OH

Average snowfall in December - Marengo, OH
  • Average snowfall in December: 2.09"

The month with the highest snowfall is January (2.6").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Marengo, OH

Average snowfall days in December - Marengo, OH
  • Average snowfall days in December: 9.2 days

The month with the highest number of snowfall days is January (12.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Marengo, 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 18min).

  • Average sunshine in December: 3h and 5min

The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).

Average sunshine days in December
Marengo, OH

Average sunshine days in December - Marengo, OH
  • Average sunshine days in December: 14 days

The month with the most sunshine days is November (18 days).
The month with the least sunshine days is May (9 days).

Average UV index in December
Marengo, OH

Average UV index in December - Marengo, 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
Marengo, OH

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

The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in December
Marengo, OH

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

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

Marengo, Ohio, USA

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