Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
With the start of December, Siavan Mahalleh measures an average high-temperature of a fresh 10.6°C (51.1°F), not significantly differing from November's 13.5°C (56.3°F). Siavan Mahalleh registers a steady nighttime temperature averaging a frosty 6.2°C (43.2°F) throughout December.Humidity
The average relative humidity in December is 70%.Rainfall
In Siavan Mahalleh, in December, it is raining for 11.6 days, with typically 50mm (1.97") of accumulated precipitation. In Siavan Mahalleh, during the entire year, the rain falls for 140.3 days and collects up to 522mm (20.55") of precipitation.Snowfall
April through October and December are months without snowfall.Daylight
December has the shortest days of the year, with an average of 9h and 42min of daylight.On the first day of the month, sunrise is at 07:03 and sunset at 16:51. On the last day of December, sunrise is at 07:21 and sunset at 17:01 +0330.
Sunshine
In December, the average sunshine is 6.2h.UV index
January through March and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 3 in December translates into this advice:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. To guard against the harmful effects of the Sun, minimize exposure during midday. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in December?
What is the average humidity in December?
How many days does it rain in December?
When it does not snow?
Does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
How long on average sun shines in December?
What are the months with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Siavan Mahalleh, Iran
- Average high temperature in December: 10.6°C
The warmest month (with the highest average high temperature) is July (25.8°C).
The month with the lowest average high temperature is February (7.8°C).
- Average low temperature in December: 6.2°C
The month with the highest average low temperature is July (20.5°C).
The coldest month (with the lowest average low temperature) is February (3.5°C).
Average pressure in December
Siavan Mahalleh, Iran
- Average pressure in December: 1021.6mbar
The month with the highest atmospheric pressure is December (1021.6mbar).
The month with the lowest atmospheric pressure is July (1008.6mbar).
Average wind speed in December
Siavan Mahalleh, Iran
- Average wind speed in December: 10.5km/h
The windiest month (with the highest average wind speed) is October (11.1km/h).
The calmest month (with the lowest average wind speed) is August (8.6km/h).
Average humidity in December
Siavan Mahalleh, Iran
- Average humidity in December: 70%
The month with the highest relative humidity is February (76%).
The month with the lowest relative humidity is June (68%).
Average rainfall in December
Siavan Mahalleh, Iran
- Average rainfall in December: 50mm
The wettest month (with the highest rainfall) is November (79mm).
The driest month (with the least rainfall) is June (15mm).
Average rainfall days in December
Siavan Mahalleh, Iran
- Average rainfall days in December: 11.6 days
The month with the highest number of rainy days is October (14.8 days).
The month with the least rainy days is June (7.4 days).
Average snowfall in December
Siavan Mahalleh, Iran
- Average snowfall in December: 0mm
The month with the highest snowfall is February (68mm).
The months with the least snowfall are April, May, June, July, August, September, October and December (0mm).
Average snowfall days in December
Siavan Mahalleh, Iran
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are May, June, July, August, September, October and December (0 days).
Average daylight in December /
Average sunshine in December
Siavan Mahalleh, Iran
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 6h and 1min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is November (Average sunshine: 5h and 48min).
Average sunshine days in December
Siavan Mahalleh, Iran
- Average sunshine days in December: 17.5 days
The month with the most sunshine days is December (17.5 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in December
Siavan Mahalleh, Iran
- Average UV index in December: 3
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, March and December (UV index 3).
Average cloud cover in December
Siavan Mahalleh, Iran
- Average cloud cover in December: 28
The month with the most cloud cover is February (Cloud cover 35).
The month with the least cloud cover is June (Cloud cover 12).
Average visibility in December
Siavan Mahalleh, Iran
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
