December weather forecastSheylavan, Iran
December
Weather in December
December, the first month of the winter in Sheylavan, is also an icy month, with an average temperature fluctuating between -2.7°C (27.1°F) and 3.9°C (39°F).Temperature
Sheylavan's weather subtly changes with the onset of December, barely falling from a chilly 8.5°C (47.3°F) in November to a cold 3.9°C (39°F). In December, Sheylavan records an average nighttime temperature of -2.7°C (27.1°F).Humidity
In Sheylavan, the average relative humidity in December is 66%.Rainfall
In Sheylavan, Iran, during December, the rain falls for 5.3 days and regularly aggregates up to 16mm (0.63") of precipitation. In Sheylavan, during the entire year, the rain falls for 100.2 days and collects up to 282mm (11.1") of precipitation.Snowfall
Months with snowfall are January through April, October through December. In December, it is snowing for 5.2 days. Throughout December, 93mm (3.66") of snow is accumulated. In Sheylavan, during the entire year, snow falls for 29.7 days and aggregates up to 464mm (18.27") of snow.Daylight
December has the shortest days of the year, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 07:20 and sunset at 16:58. On the last day of December, in Sheylavan, sunrise is at 07:38 and sunset at 17:08 +0330.
Sunshine
With an average of 6.7h of sunshine, December has the least sunshine of the year.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: In December, the maximum UV index of 2 transforms into these recommendations:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Sheylavan, Iran
- Average high temperature in December: 3.9°C
The warmest month (with the highest average high temperature) is July (26.6°C).
The month with the lowest average high temperature is January (1.2°C).
- Average low temperature in December: -2.7°C
The month with the highest average low temperature is July (14.9°C).
The coldest month (with the lowest average low temperature) is January (-5.1°C).
Average pressure in December
Sheylavan, Iran
- Average pressure in December: 1022.1mbar
The month with the highest atmospheric pressure is December (1022.1mbar).
The month with the lowest atmospheric pressure is July (1009.4mbar).
Average wind speed in December
Sheylavan, Iran
- Average wind speed in December: 12.5km/h
The windiest month (with the highest average wind speed) is March (14.2km/h).
The calmest month (with the lowest average wind speed) is September (9.7km/h).
Average humidity in December
Sheylavan, Iran
- Average humidity in December: 66%
The months with the highest relative humidity are January and February (71%).
The months with the lowest relative humidity are July and August (52%).
Average rainfall in December
Sheylavan, Iran
- Average rainfall in December: 16mm
The wettest month (with the highest rainfall) is May (50mm).
The driest month (with the least rainfall) is August (12mm).
Average rainfall days in December
Sheylavan, Iran
- Average rainfall days in December: 5.3 days
The month with the highest number of rainy days is April (14.3 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in December
Sheylavan, Iran
- Average snowfall in December: 93mm
The month with the highest snowfall is January (112mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in December
Sheylavan, Iran
- Average snowfall days in December: 5.2 days
The month with the highest number of snowfall days is February (8 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
Sheylavan, Iran
- Average daylight in December: 9h and 30min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 6h and 42min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in December
Sheylavan, Iran
- Average sunshine days in December: 22.3 days
The month with the most sunshine days is August (23.4 days).
The month with the least sunshine days is April (12.3 days).
Average UV index in December
Sheylavan, Iran
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Sheylavan, Iran
- Average cloud cover in December: 25
The month with the most cloud cover is February (Cloud cover 30).
The months with the least cloud cover are June, July and August (Cloud cover 14).
Average visibility in December
Sheylavan, Iran
- Average visibility in December: 10km
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January and February (9km).
