December weather forecastUlmi, Romania

December

Weather in December

December, the first month of the winter in Ulmi, is also an icy month, with an average temperature fluctuating between 4.9°C (40.8°F) and -0.9°C (30.4°F).

Temperature

The arrival of December corresponds with a reduction in the average high-temperature, down from November's fresh 10.6°C (51.1°F) to an icy 4.9°C (40.8°F). In Ulmi, an average temperature of -0.9°C (30.4°F) is noted during December nights.

Humidity

In December, the average relative humidity is 76%.

Rainfall

In Ulmi, in December, it is raining for 5.5 days, with typically 25mm (0.98") of accumulated precipitation. Throughout the year, in Ulmi, there are 105.4 rainfall days, and 345mm (13.58") of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall. In December, in Ulmi, Romania, it is snowing for 4 days. Throughout December, 51mm (2.01") of snow is accumulated. In Ulmi, Romania, during the entire year, snow falls for 19.7 days and aggregates up to 227mm (8.94") of snow.

Daylight

The month with the shortest days in Ulmi is December, with an average of 8h and 54min of daylight.
On the first day of December, sunrise is at 07:33 and sunset at 16:38. On the last day of the month, sunrise is at 07:53 and sunset at 16:46 EET.

Sunshine

In Ulmi, the average sunshine in December is 5.9h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Ulmi. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, an average UV index of 2 transforms into the following instructions:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. To cut down UV radiation exposure by about half, sport a wide-brim hat. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.

Frequently asked questions

Ulmi in December has an average high-temperature of 4.9°C (40.8°F) and an average low-temperature of -0.9°C (30.4°F). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in August is calculated to be 30°C (86°F).

In December, the average relative humidity in Ulmi is 76%.

In Ulmi, in December, it is raining for 5.5 days, with typically 25mm (0.98") of accumulated precipitation.

In Ulmi, Romania, in December, during 4 snowfall days, 51mm (2.01") of snow is typically accumulated.

With an average of 8h and 54min of daylight, December has the shortest days of the year.

In December, the average day length is 8h and 54min.

In December, on the first day of the month, sunrise is at 07:33 and sunset at 16:38. On the last day of the month, in Ulmi, sunrise is at 07:53 and sunset at 16:46 EET.

The average sunshine duration in December in Ulmi, Romania, is 5.9h.

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

The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to Sun's UV rays.
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
Ulmi, Romania

  • Average high temperature in December: 4.9°C

The warmest month (with the highest average high temperature) is August (29.2°C).
The month with the lowest average high temperature is January (2.3°C).

  • Average low temperature in December: -0.9°C

The month with the highest average low temperature is August (17°C).
The coldest month (with the lowest average low temperature) is January (-3.3°C).

Average pressure in December
Ulmi, Romania

  • Average pressure in December: 1020.4mbar

The month with the highest atmospheric pressure is December (1020.4mbar).
The month with the lowest atmospheric pressure is June (1013.4mbar).

Average wind speed in December
Ulmi, Romania

  • Average wind speed in December: 7.5km/h

The windiest month (with the highest average wind speed) is April (9.8km/h).
The calmest month (with the lowest average wind speed) is December (7.5km/h).

Average humidity in December
Ulmi, Romania

  • Average humidity in December: 76%

The months with the highest relative humidity are January and February (80%).
The month with the lowest relative humidity is August (52%).

Average rainfall in December
Ulmi, Romania

  • Average rainfall in December: 25mm

The wettest month (with the highest rainfall) is May (54mm).
The driest month (with the least rainfall) is September (14mm).

Average rainfall days in December
Ulmi, Romania

  • Average rainfall days in December: 5.5 days

The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is January (5.3 days).

Average snowfall in December
Ulmi, Romania

  • Average snowfall in December: 51mm

The month with the highest snowfall is January (74mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in December
Ulmi, Romania

  • Average snowfall days in December: 4 days

The month with the highest number of snowfall days is February (6.1 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
Ulmi, Romania

  • Average daylight in December: 8h and 54min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in December: 5h and 54min

The month with the most sunshine is August (Average sunshine: 11h and 30min).
The month with the least sunshine is February (Average sunshine: 5h and 18min).

Average sunshine days in December
Ulmi, Romania

  • Average sunshine days in December: 22.5 days

The month with the most sunshine days is September (23.9 days).
The month with the least sunshine days is June (14.9 days).

Average UV index in December
Ulmi, Romania

  • Average UV index in December: 2

The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in December
Ulmi, Romania

  • Average cloud cover in December: 37

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 20).

Average visibility in December
Ulmi, Romania

  • Average visibility in December: 9km

The months with the highest visibility are April, June, July, August, September and October (10km).
The month with the lowest visibility is January (8km).