December weather forecast
Altamont, OH

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Weather in December

December, the first month of the winter in Altamont, is also an icy month, with an average temperature fluctuating between 28°F (-2.2°C) and 39.2°F (4°C).

Temperature

As November shifts into December, a slight alteration in temperatures is observed, with average highs reducing from a frosty 48.9°F (9.4°C) to a wintry 39.2°F (4°C). An average low-temperature of 28°F (-2.2°C) is recorded during the nights in December in Altamont.

Humidity

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

Rainfall

In December, the rain falls for 12.2 days. Throughout December, 2.8" (71mm) of precipitation is accumulated. Throughout the year, there are 182 rainfall days, and 33.15" (842mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Altamont, Ohio. In Altamont, during December, snow falls for 12.5 days and regularly aggregates up to 4.41" (112mm) of snow. Throughout the year, in Altamont, there are 59.6 snowfall days, and 22.2" (564mm) 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 the month, sunrise is at 7:26 am and sunset at 4:56 pm. On the last day of December, sunrise is at 7:45 am and sunset at 5:06 pm EST.

Sunshine

In December, the average sunshine in Altamont is 3.5h.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the average person.
Note: A maximum UV index of 1 in December translates into the following recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
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Frequently asked questions

Is December cold in Altamont?

The average high-temperature and low-temperature during December are 39.2°F (4°C) and 28°F (-2.2°C) respectively. In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, is evaluated at 87.8°F (31°C).

What is the average humidity in December in Altamont?

The average relative humidity in December in Altamont is 83%.

How many days does it rain in December in Altamont?

In Altamont, during December, the rain falls for 12.2 days and regularly aggregates up to 2.8" (71mm) of precipitation.

How much does it snow in Altamont in December?

In December, in Altamont, Ohio, it is snowing for 12.5 days. Throughout December, 4.41" (112mm) of snow is accumulated.

What is the month with the shortest days in Altamont?

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

How many hours of daylight does Altamont have in December?

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

When are sunrise and sunset in December in Altamont?

On the first day of December, sunrise is at 7:26 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 5:06 pm EST.

How long on average sun shines in December in Altamont?

In December, the average sunshine duration in Altamont is 3.5h.

When is the lowest UV index in Altamont?

December is the month with the lowest UV index in Altamont, Ohio, with an average maximum UV index of 1.

What is the UV index reading in December in Altamont?

In Altamont, the average daily maximum UV index in December is 1. A UV Index reading of 2, and below, represents 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
Altamont, OH

Average temperature in December - Altamont, OH
  • Average high temperature in December: 39.2°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (33.1°F).

  • Average low temperature in December: 28°F

The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).

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Average pressure in December
Altamont, OH

Average pressure in December - Altamont, 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 (29.94"Hg).

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Average wind speed in December
Altamont, OH

Average wind speed in December - Altamont, OH
  • Average wind speed in December: 7.4mph

The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

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Average humidity in December
Altamont, OH

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

The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, July and August (77%).

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Average rainfall in December
Altamont, OH

Average rainfall in December - Altamont, OH
  • Average rainfall in December: 2.8"

The wettest month (with the highest rainfall) is April (3.39").
The driest month (with the least rainfall) is November (2.28").

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Average rainfall days in December
Altamont, OH

Average rainfall days in December - Altamont, OH
  • Average rainfall days in December: 12.2 days

The month with the highest number of rainy days is May (20.9 days).
The month with the least rainy days is February (10.3 days).

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Average snowfall in December
Altamont, OH

Average snowfall in December - Altamont, OH
  • Average snowfall in December: 4.41"

The month with the highest snowfall is February (5.55").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Altamont, OH

Average snowfall days in December - Altamont, OH
  • Average snowfall days in December: 12.5 days

The month with the highest number of snowfall days is January (16.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Altamont, 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 3min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

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Average sunshine days in December
Altamont, OH

Average sunshine days in December - Altamont, OH
  • Average sunshine days in December: 10.9 days

The month with the most sunshine days is November (15 days).
The months with the least sunshine days are January and May (8.3 days).

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Average UV index in December
Altamont, OH

Average UV index in December - Altamont, OH
  • Average UV index in December: 1

The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in December
Altamont, OH

Average cloud cover in December - Altamont, OH
  • Average cloud cover in December: 63

The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 35).

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Average visibility in December
Altamont, OH

Average visibility in December - Altamont, OH
  • Average visibility in December: 5mi

The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January and February (4mi).

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Altamont, Ohio, USA

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