December weather forecast
Zanjan, Iran

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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.
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Frequently asked questions

How cold is it in Zanjan in December?

In December, in Zanjan, the average high-temperature is 3.7°C (38.7°F), and the average low-temperature is -2.9°C (26.8°F). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is evaluated at 28°C (82.4°F).

What is the average humidity in December in Zanjan?

The average relative humidity in December in Zanjan is 68%.

How many days does it rain in December in Zanjan?

In Zanjan, in December, during 7.2 rainfall days, 30mm (1.18") of precipitation is typically accumulated.

How many days does it snow in December in Zanjan?

In Zanjan, Iran, in December, snow falls for 8.7 days, with typically accumulated 135mm (5.31") of snow.

What is the month with the shortest days in Zanjan?

December has the shortest days of the year, with an average of 9h and 42min of daylight.

What is the average length of the day in December in Zanjan?

In December, the average day length is 9h and 42min.

When is the sunrise / sunset in December in Zanjan?

In December, on the first day of the month, sunrise is at 07:10 and sunset at 17:00. On the last day of the month, in Zanjan, Iran, sunrise is at 07:28 and sunset at 17:10 +0330.

What are the months with the least sunshine in Zanjan?

The months with the least sunshine in Zanjan are January and December, with an average of 6.5h of sunshine.

How long on average sun shines in December in Zanjan?

In December, the average sunshine duration is 6.5h.

What is the month with the lowest UV index in Zanjan?

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Zanjan.

What is the UV index reading in December in Zanjan?

In Zanjan, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Zanjan, Iran

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).

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Average pressure in December
Zanjan, Iran

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).

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Average wind speed in December
Zanjan, Iran

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).

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Average humidity in December
Zanjan, Iran

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%).

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Average rainfall in December
Zanjan, Iran

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).

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Average rainfall days in December
Zanjan, Iran

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).

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Average snowfall in December
Zanjan, Iran

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).

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Average snowfall days in December
Zanjan, Iran

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).

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Average daylight in December /
Average sunshine in December
Zanjan, Iran

Average daylight in December / Average sunshine in December - Zanjan, Iran
  • Average daylight in December: 9h and 4min

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 3min

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).

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Average sunshine days in December
Zanjan, Iran

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).

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Average UV index in December
Zanjan, Iran

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).

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Average cloud cover in December
Zanjan, Iran

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).

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Average visibility in December
Zanjan, Iran

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).

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Zanjan, Iran

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