December weather forecast
Germantown, OH

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Weather in December

The first month of the winter, December, is also a wintry month in Germantown, Ohio, with an average temperature fluctuating between 29.1°F (-1.6°C) and 39.6°F (4.2°C).

Temperature

Arrival of December comes with a reduction in the average high-temperature, falling from a frosty 49.1°F (9.5°C) in November to an icy 39.6°F (4.2°C). During the month of December, the temperature in Germantown falls to an average of 29.1°F (-1.6°C).

Humidity

January, February and December, with an average relative humidity of 82%, are the most humid months.

Rainfall

In December, the rain falls for 9.7 days. Throughout December, 1.69" (43mm) of precipitation is accumulated. Throughout the year, there are 148.2 rainfall days, and 22.95" (583mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, November and December. In Germantown, in December, during 6.9 snowfall days, 1.61" (41mm) of snow is typically accumulated. Throughout the year, in Germantown, there are 29.3 snowfall days, and 8.35" (212mm) of snow is accumulated.

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year in Germantown, Ohio.
On the first day of December in Germantown, sunrise is at 7:39 am and sunset at 5:13 pm. On the last day of the month, sunrise is at 7:58 am and sunset at 5:23 pm EST.

Sunshine

In Germantown, the average sunshine in December is 4.1h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the average person.
Note: In December, the maximum UV index of 2 suggests these recommendations:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
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Frequently asked questions

How cold is December in Germantown?

In December, in Germantown, the average high-temperature is 39.6°F (4.2°C), and the average low-temperature is 29.1°F (-1.6°C). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 86°F (30°C).

What is the most humid month in Germantown?

The months with the highest humidity in Germantown are January, February and December, with an average relative humidity of 82%.

What is the average humidity in December in Germantown?

In Germantown, the average relative humidity in December is 82%.

How much does it rain in Germantown in December?

In December, the rain falls for 9.7 days. Throughout December, 1.69" (43mm) of precipitation is accumulated.

How much does it snow in Germantown in December?

In Germantown, Ohio, during December, snow falls for 6.9 days and regularly aggregates up to 1.61" (41mm) of snow.

What is the month with the shortest days in Germantown?

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

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

The average day length in December in Germantown is 9h and 25min.

What time are sunrise and sunset in December in Germantown?

On the first day of December, sunrise is at 7:39 am and sunset at 5:13 pm. On the last day of the month, sunrise is at 7:58 am and sunset at 5:23 pm EST.

How long on average sun shines in December in Germantown?

In December, the average sunshine duration in Germantown is 4.1h.

When is the lowest UV index in Germantown?

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

How high is the UV index in December in Germantown?

In December, the average daily maximum UV index in Germantown is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to Sun's UV rays.
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
Germantown, OH

Average temperature in December - Germantown, OH
  • Average high temperature in December: 39.6°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (34°F).

  • Average low temperature in December: 29.1°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

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Average pressure in December
Germantown, OH

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

The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in December
Germantown, OH

Average wind speed in December - Germantown, OH
  • Average wind speed in December: 9mph

The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

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Average humidity in December
Germantown, OH

Average humidity in December - Germantown, OH
  • Average humidity in December: 82%

The months with the highest relative humidity are January, February and December (82%).
The months with the lowest relative humidity are October and November (75%).

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Average rainfall in December
Germantown, OH

Average rainfall in December - Germantown, OH
  • Average rainfall in December: 1.69"

The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is November (1.42").

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Average rainfall days in December
Germantown, OH

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

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is February (7.8 days).

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Average snowfall in December
Germantown, OH

Average snowfall in December - Germantown, OH
  • Average snowfall in December: 1.61"

The month with the highest snowfall is February (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Germantown, OH

Average snowfall days in December - Germantown, OH
  • Average snowfall days in December: 6.9 days

The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Germantown, OH
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in December: 4h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

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Average sunshine days in December
Germantown, OH

Average sunshine days in December - Germantown, OH
  • Average sunshine days in December: 15.4 days

The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is May (10.5 days).

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Average UV index in December
Germantown, OH

Average UV index in December - Germantown, 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, November and December (UV index 2).

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Average cloud cover in December
Germantown, OH

Average cloud cover in December - Germantown, OH
  • Average cloud cover in December: 57

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in December
Germantown, OH

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

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

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Germantown, Ohio, USA

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