December weather forecastZanjan, Iran
December
Weather in December
December brings the coldest weather of the year to Zanjan, reinforcing the winter's presence. A significant increase in snowfall is observed as 135mm (5.31") of snow blankets the city over an average of 8.7 days. The month experiences a rise in relative humidity, while pressure levels climb to their highest at 1022.2mb. Daylight hours reach their shortest, with the city hardly seeing more than 9.7 hours of light daily. December embraces the full intensity of winter weather, leading to festive end-of-year celebrations amid snow and chill.Temperature
Zanjan in December experiences a gentle temperature dip, with average high-temperatures reducing from a chilly 8.4°C (47.1°F) in November to a wintry 3.7°C (38.7°F). In December, the temperature drops to an average of -2.9°C (26.8°F) at night.Humidity
The average relative humidity in December is 68%.Rainfall
In Zanjan, in December, it is raining for 7.2 days, with typically 30mm (1.18") of accumulated precipitation. Throughout the year, in Zanjan, there are 107.9 rainfall days, and 343mm (13.5") of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In December, it is snowing for 8.7 days. Throughout December, 135mm (5.31") of snow is accumulated. In Zanjan, Iran, during the entire year, snow falls for 42.1 days and aggregates up to 766mm (30.16") of snow.Daylight
December has the shortest days of the year, with an average of 9h and 42min of daylight.On the first day of December, sunrise is at 07:10 and sunset at 17:00. On the last day of the month, sunrise is at 07:28 and sunset at 17:10 +0330.
Sunshine
The months with the least sunshine are January and December, with an average of 6.5h of sunshine.UV index
The months with the lowest UV index in Zanjan are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: In December, the maximum UV index of 2 transforms into these recommendations:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. It's recommended to limit sun exposure when its radiation is at its peak during midday. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Zanjan, Iran
- Average high temperature in December: 3.7°C
The warmest month (with the highest average high temperature) is July (28.7°C).
The month with the lowest average high temperature is January (1°C).
- Average low temperature in December: -2.9°C
The month with the highest average low temperature is July (15.6°C).
The coldest month (with the lowest average low temperature) is January (-5.7°C).
Average pressure in December
Zanjan, Iran
- Average pressure in December: 1022.2mbar
The month with the highest atmospheric pressure is December (1022.2mbar).
The month with the lowest atmospheric pressure is July (1008.8mbar).
Average wind speed in December
Zanjan, Iran
- Average wind speed in December: 10.4km/h
The windiest month (with the highest average wind speed) is March (13.5km/h).
The calmest month (with the lowest average wind speed) is November (9.9km/h).
Average humidity in December
Zanjan, Iran
- Average humidity in December: 68%
The month with the highest relative humidity is February (76%).
The month with the lowest relative humidity is June (44%).
Average rainfall in December
Zanjan, Iran
- Average rainfall in December: 30mm
The wettest month (with the highest rainfall) is April (64mm).
The driest months (with the least rainfall) are August and September (5mm).
Average rainfall days in December
Zanjan, Iran
- Average rainfall days in December: 7.2 days
The month with the highest number of rainy days is April (16.2 days).
The month with the least rainy days is August (3.4 days).
Average snowfall in December
Zanjan, Iran
- Average snowfall in December: 135mm
The month with the highest snowfall is January (175mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in December
Zanjan, Iran
- Average snowfall days in December: 8.7 days
The month with the highest number of snowfall days is January (11.3 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
Zanjan, Iran
- Average daylight in December: 9h and 42min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 6h and 30min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 6h and 30min).
Average sunshine days in December
Zanjan, Iran
- Average sunshine days in December: 18 days
The month with the most sunshine days is August (25.2 days).
The month with the least sunshine days is April (10.3 days).
Average UV index in December
Zanjan, 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
Zanjan, Iran
- Average cloud cover in December: 30
The month with the most cloud cover is February (Cloud cover 36).
The month with the least cloud cover is June (Cloud cover 12).
Average visibility in December
Zanjan, Iran
- Average visibility in December: 9km
The months with the highest visibility are April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, November and December (9km).





