December weather forecast
Calna, Romania

December

Weather in December

December, the first month of the winter in Calna, is also an icy month, with an average temperature ranging between max 1.7°C (35.1°F) and min -2.7°C (27.1°F).

Temperature

A shift in the average high-temperature occurs in December, reducing from a frosty 8.9°C (48°F) in November to a wintry 1.7°C (35.1°F). Calna logs an average low-temperature of -2.7°C (27.1°F) during the nights of December, subtly lower than its daytime highs.

Humidity

In December, the average relative humidity is 85%.

Rainfall

In Calna, in December, it is raining for 10.7 days, with typically 44mm (1.73") of accumulated precipitation. Throughout the year, there are 156 rainfall days, and 505mm (19.88") of precipitation is accumulated.

Snowfall

Months with snowfall in Calna are January through April, October through December. In December, it is snowing for 9.2 days. Throughout December, 111mm (4.37") of snow is accumulated. In Calna, during the entire year, snow falls for 37.1 days and aggregates up to 396mm (15.59") of snow.

Daylight

December has the shortest days of the year, with an average of 8h and 36min of daylight.
On the first day of December in Calna, Romania, sunrise is at 07:51 and sunset at 16:37. On the last day of the month, sunrise is at 08:11 and sunset at 16:45 EET.

Sunshine

In December, the average sunshine in Calna is 4.4h.

UV index

In Calna, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: In December, an average UV index of 2 transforms into the following instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.

Frequently asked questions

How cold is December in Calna?
In December, the average high-temperature and low-temperature are 1.7°C (35.1°F) and -2.7°C (27.1°F) respectively. In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, is estimated at 29°C (84.2°F).
What is the average humidity in December in Calna?
In December, the average relative humidity is 85%.
How many days does it rain in December in Calna?
In Calna, Romania, in December, during 10.7 rainfall days, 44mm (1.73") of precipitation is typically accumulated.
How many days does it snow in December in Calna?
In December, in Calna, it is snowing for 9.2 days. Throughout December, 111mm (4.37") of snow is accumulated.
What is the month with the shortest days in Calna?
The month with the shortest days in Calna is December, with an average of 8h and 36min of daylight.
What is the average length of the day in December in Calna?
In December, the average day length in Calna is 8h and 34min.
What time are sunrise and sunset in December in Calna?
On the first day of December in Calna, Romania, sunrise is at 07:51 and sunset at 16:37. On the last day of the month, sunrise is at 08:11 and sunset at 16:45 EET.
How many hours of sunshine does Calna have in December?
In December, the average sunshine duration is 4.4h.
What is the UV index reading in December in Calna?
The average daily maximum UV index in December in Calna is 2. A UV Index of 2, and less, symbolizes a low health threat from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December
Calna, Romania
  • Average high temperature in December: 1.7°C

The warmest month (with the highest average high temperature) is August (27.1°C).
The month with the lowest average high temperature is January (-0.2°C).

  • Average low temperature in December: -2.7°C

The month with the highest average low temperature is August (13.9°C).
The coldest month (with the lowest average low temperature) is January (-4.8°C).

Average pressure in December
Calna, Romania
  • Average pressure in December: 1020.4mbar

The month with the highest atmospheric pressure is December (1020.4mbar).
The months with the lowest atmospheric pressure are May and June (1014.1mbar).

Average wind speed in December
Calna, Romania
  • Average wind speed in December: 6.9km/h

The windiest month (with the highest average wind speed) is March (8.7km/h).
The calmest month (with the lowest average wind speed) is August (6.4km/h).

Average humidity in December
Calna, Romania
  • Average humidity in December: 85%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (64%).

Average rainfall in December
Calna, Romania
  • Average rainfall in December: 44mm

The wettest month (with the highest rainfall) is May (88mm).
The driest months (with the least rainfall) are August and September (23mm).

Average rainfall days in December
Calna, Romania
  • Average rainfall days in December: 10.7 days

The month with the highest number of rainy days is May (21.1 days).
The month with the least rainy days is September (9.3 days).

Average snowfall in December
Calna, Romania
  • Average snowfall in December: 111mm

The month with the highest snowfall is January (165mm).
The months with the least snowfall are May, June, July, August and September (0mm).

Average snowfall days in December
Calna, Romania
  • Average snowfall days in December: 9.2 days

The month with the highest number of snowfall days is January (13.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Calna, Romania
  • Average daylight in December: 8h and 4min

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in December: 4h and 2min

The month with the most sunshine is August (Average sunshine: 11h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

Average sunshine days in December
Calna, Romania
  • Average sunshine days in December: 14 days

The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is May (7.8 days).

Average UV index in December
Calna, Romania
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in December
Calna, Romania
  • Average cloud cover in December: 56

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 22).

Average visibility in December
Calna, Romania
  • Average visibility in December: 8km

The months with the highest visibility are August and September (10km).
The month with the lowest visibility is January (7km).

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