December weather forecast
Syumsi, Russia

December

Weather in December

The first month of the winter, December, is still a freezing cold month in Syumsi, Russia, with an average temperature varying between -6.6°C (20.1°F) and -11.1°C (12°F).

Temperature

December indicates a shift in the average high-temperature, from November's -1.1°C (30°F) to a still freezing cold -6.6°C (20.1°F). During December, nights in Syumsi cool slightly to an average low of -11.1°C (12°F).

Humidity

The average relative humidity in December in Syumsi is 95%.

Rainfall

In Syumsi, Russia, during December, the rain falls for 2.5 days and regularly aggregates up to 33mm (1.3") of precipitation. Throughout the year, there are 109.5 rainfall days, and 447mm (17.6") of precipitation is accumulated.

Snowfall

January through April, September through December are months with snowfall in Syumsi. The month with the most snowfall is December, when snow falls for 19.9 days and typically aggregates up to 255mm (10.04") of snow.

Daylight

The month with the shortest days in Syumsi is December, with an average of 6h and 48min of daylight.
On the first day of the month, sunrise is at 08:47 and sunset at 15:57. On the last day of December, in Syumsi, Russia, sunrise is at 09:12 and sunset at 16:01 +04.

Sunshine

December has the least sunshine of the year, with an average of 1.3h of sunshine.

UV index

The months with the lowest UV index in Syumsi are January through March, October through December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.
Note: A maximum UV index of 1 in December translates into the following recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.

Frequently asked questions

How cold is December in Syumsi?
During December, Syumsi experiences an average high-temperature of -6.6°C (20.1°F) and a low-temperature of -11.1°C (12°F).
What is the average humidity in December in Syumsi?
In December, the average relative humidity in Syumsi is 95%.
How many days does it rain in December in Syumsi?
In December, the rain falls for 2.5 days. Throughout December, 33mm (1.3") of precipitation is accumulated.
When does it snow the most in Syumsi?
December is the month with the most snowfall in Syumsi. Snow falls for 19.9 days and accumulates 255mm (10.04") of snow.
How many days does it snow in December in Syumsi?
In December, in Syumsi, it is snowing for 19.9 days. Throughout December, 255mm (10.04") of snow is accumulated.
What is the month with the shortest days in Syumsi?
The month with the shortest days is December, with an average of 6h and 48min of daylight.
What is the average length of the day in December in Syumsi?
In December, the average day length is 6h and 50min.
What time are sunrise and sunset in December in Syumsi?
In December, on the first day of the month, sunrise is at 08:47 and sunset at 15:57. On the last day of the month, in Syumsi, sunrise is at 09:12 and sunset at 16:01 +04.
What is the month with the least sunshine in Syumsi?
The month with the least sunshine in Syumsi is December, with an average of 1.3h of sunshine.
How long on average sun shines in December in Syumsi?
The average sunshine duration in December in Syumsi is 1.3h.
When is the lowest UV index in Syumsi?
The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 1.
What is the UV index intensity in December in Syumsi?
In Syumsi, Russia, the average daily maximum UV index in December is 1. A UV Index reading of 2, and below, represents a low health threat 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
Syumsi, Russia
  • Average high temperature in December: -6.6°C

The warmest month (with the highest average high temperature) is July (24.7°C).
The month with the lowest average high temperature is January (-9.3°C).

  • Average low temperature in December: -11.1°C

The month with the highest average low temperature is July (12.8°C).
The coldest month (with the lowest average low temperature) is January (-14.8°C).

Average pressure in December
Syumsi, Russia
  • Average pressure in December: 1019mbar

The month with the highest atmospheric pressure is February (1021.8mbar).
The month with the lowest atmospheric pressure is July (1011.3mbar).

Average wind speed in December
Syumsi, Russia
  • Average wind speed in December: 11.2km/h

The windiest month (with the highest average wind speed) is October (11.3km/h).
The calmest month (with the lowest average wind speed) is July (8.8km/h).

Average humidity in December
Syumsi, Russia
  • Average humidity in December: 95%

The months with the highest relative humidity are January and February (96%).
The month with the lowest relative humidity is May (64%).

Average rainfall in December
Syumsi, Russia
  • Average rainfall in December: 33mm

The wettest month (with the highest rainfall) is July (51mm).
The driest month (with the least rainfall) is February (24mm).

Average rainfall days in December
Syumsi, Russia
  • Average rainfall days in December: 2.5 days

The month with the highest number of rainy days is June (14.9 days).
The month with the least rainy days is January (0.7 days).

Average snowfall in December
Syumsi, Russia
  • Average snowfall in December: 255mm

The month with the highest snowfall is December (255mm).
The months with the least snowfall are May, June, July and August (0mm).

Average snowfall days in December
Syumsi, Russia
  • Average snowfall days in December: 19.9 days

The month with the highest number of snowfall days is January (20.6 days).
The months with the least snowfall days are July and August (0 days).

Average daylight in December /
Average sunshine in December
Syumsi, Russia
  • Average daylight in December: 6h and 5min

The month with the longest days is June (Average daylight: 17h and 48min).
The month with the shortest days is December (Average daylight: 6h and 48min).

  • Average sunshine in December: 1h and 2min

The month with the most sunshine is June (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 1h and 18min).

Average sunshine days in December
Syumsi, Russia
  • Average sunshine days in December: 10.2 days

The month with the most sunshine days is May (17 days).
The month with the least sunshine days is March (9.8 days).

Average UV index in December
Syumsi, Russia
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).

Average cloud cover in December
Syumsi, Russia
  • Average cloud cover in December: 85

The month with the most cloud cover is January (Cloud cover 87).
The month with the least cloud cover is July (Cloud cover 37).

Average visibility in December
Syumsi, Russia
  • Average visibility in December: 5km

The months with the highest visibility are May, June, July and August (9km).
The month with the lowest visibility is January (4km).

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