December weather forecast and climate
Herculian, Romania

Weather in December

December, the first month of the winter, in Herculian, is still a cold month, with average temperature varying between -6.5°C (20.3°F) and 0.2°C (32.4°F).

Temperature

In Herculian, the average high-temperature drops, from a frosty 7.5°C (45.5°F) in November, to a wintry 0.2°C (32.4°F). In December, the average low-temperature is -6.5°C (20.3°F).

Humidity

In December, the average relative humidity is 89%.

Rainfall

In December, the rain falls for 5.1 days. Throughout December, 16mm (0.63") of precipitation is accumulated. In Herculian, during the entire year, the rain falls for 150.9 days and collects up to 580mm (22.83") of precipitation.

Snowfall

Months with snowfall are January through May, October through December. December is the month with the most snowfall. Snow falls for 10.5 days and accumulates 100mm (3.94") of snow.

Daylight

December has the shortest days of the year in Herculian, with an average of 8.7h of daylight.

Sunshine

In December, the average sunshine is 4.5h.

UV index

In Herculian, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health hazard from the exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 2 interpret into the following advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in December in Herculian?

In December, in Herculian, the average high-temperature is 0.2°C (32.4°F), and the average low-temperature is -6.5°C (20.3°F).

What is the average humidity in December in Herculian?

The average relative humidity in December is 89%.

How many days does it rain in December in Herculian?

In Herculian, Romania, in December, during 5.1 rainfall days, 16mm (0.63") of precipitation is typically accumulated.

How many days does it snow in December in Herculian?

In Herculian, Romania, during December, snow falls for 10.5 days and regularly aggregates up to 100mm (3.94") of snow.

When does it snow the most in Herculian?

December is the month with the most snowfall. Snow falls for 10.5 days and accumulates 100mm (3.94") of snow.

What is the month with the shortest days in Herculian?

The month with the shortest days in Herculian, Romania, is December, with an average of 8.7h of daylight.

How many hours of daylight does Herculian have in December?

The average length of the day in December in Herculian, Romania, is 8.7h.

How long on average sun shines in December in Herculian?

In Herculian, the average sunshine in December is 4.5h.

How high is the UV index in December in Herculian?

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

Average temperature in December
Herculian, Romania

Average temperature in December - Herculian, Romania
  • Average high temperature in December: 0.2°C

The warmest month (with the highest average high temperature) is August (23.8°C).
The month with the lowest average high temperature is January (-1.3°C).

  • Average low temperature in December: -6.5°C

The month with the highest average low temperature is August (10.3°C).
The coldest month (with the lowest average low temperature) is January (-8.2°C).

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Average pressure in December
Herculian, Romania

Average pressure in December - Herculian, Romania
  • Average pressure in December: 1020.3mbar

The month with the highest atmospheric pressure is December (1020.3mbar).
The month with the lowest atmospheric pressure is June (1013.9mbar).

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Average wind speed in December
Herculian, Romania

Average wind speed in December - Herculian, Romania
  • Average wind speed in December: 7km/h

The windiest month (with the highest average wind speed) is April (8.4km/h).
The calmest month (with the lowest average wind speed) is August (6.1km/h).

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Average humidity in December
Herculian, Romania

Average humidity in December - Herculian, Romania
  • Average humidity in December: 89%

Months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is August (70%).

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Average rainfall in December
Herculian, Romania

Average rainfall in December - Herculian, Romania
  • Average rainfall in December: 16mm

The wettest month (with the highest rainfall) is June (132mm).
The driest month (with the least rainfall) is January (12mm).

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Average rainfall days in December
Herculian, Romania

Average rainfall days in December - Herculian, Romania
  • Average rainfall days in December: 5.1 days

The month with the highest number of rainy days is June (23.7 days).
The month with the least rainy days is February (3.7 days).

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Average snowfall in December
Herculian, Romania

Average snowfall in December - Herculian, Romania
  • Average snowfall in December: 100mm

The month with the highest snowfall is December (100mm).
Months with the least snowfall are June, July, August and September (0mm).

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Average snowfall days in December
Herculian, Romania

Average snowfall days in December - Herculian, Romania
  • Average snowfall days in December: 10.5 days

The month with the highest number of snowfall days is January (11.3 days).
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
Herculian, Romania

Average daylight in December / Average sunshine in December - Herculian, Romania
  • Average daylight in December: 8.7h

The month with the longest days is June (Average daylight: 15.7h).
The month with the shortest days is December (Average daylight: 8.7h).

  • Average sunshine in December: 4.5h

The month with the most sunshine is August (Average sunshine: 11.1h).
The month with the least sunshine is January (Average sunshine: 4.1h).

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Average sunshine days in December
Herculian, Romania

Average sunshine days in December - Herculian, Romania
  • Average sunshine days in December: 19.4 days

The month with the most sunshine days is November (20.3 days).
The month with the least sunshine days is June (5.1 days).

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Average UV index in December
Herculian, Romania

Average UV index in December - Herculian, Romania
  • Average UV index in December: 2

Months with the highest UV index are July and August (UV index 5).
The month with the lowest UV index is January (UV index 1).

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Average cloud cover in December
Herculian, Romania

Average cloud cover in December - Herculian, Romania
  • Average cloud cover in December: 57

The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 26).

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Average visibility in December
Herculian, Romania

Average visibility in December - Herculian, Romania
  • Average visibility in December: 6km

Months with the highest visibility are July, August and September (9km).
Months with the lowest visibility are January, February and December (6km).

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