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
December reveals a small adjustment in temperature, transitioning from an average high of a fresh 10.3°C (50.5°F) in November to a chilly 7°C (44.6°F). Isti temperatures generally rest at a low of 1.1°C (34°F) during the December nights.Humidity
In Isti, the average relative humidity in December is 73%.Rainfall
In Isti, in December, it is raining for 8.5 days, with typically 49mm (1.93") of accumulated precipitation. Throughout the year, in Isti, Iran, there are 131.9 rainfall days, and 530mm (20.87") of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall in Isti. In Isti, in December, during 7.2 snowfall days, 253mm (9.96") of snow is typically accumulated. Throughout the year, in Isti, Iran, there are 47.2 snowfall days, and 1795mm (70.67") of snow is accumulated.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 07:18 and sunset at 16:56. On the last day of the month, sunrise is at 07:36 and sunset at 17:06 +0330.
Sunshine
In December, the average sunshine is 5.9h.UV index
January through March and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: A maximum high UV index of 2 in December translates into the following recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold in Isti?
What is the average humidity in December in Isti?
How much does it rain in Isti in December?
How much does it snow in Isti in December?
What is the month with the shortest days in Isti?
How many hours of daylight does Isti have in December?
When is the sunrise / sunset in December in Isti?
How many hours of sunshine does Isti have in December?
What is the month with the lowest UV index in Isti?
How high is the UV index in December in Isti?
Average temperature in December
Isti, Iran
- Average high temperature in December: 7°C
The warmest month (with the highest average high temperature) is July (27.3°C).
The month with the lowest average high temperature is January (5°C).
- Average low temperature in December: 1.1°C
The month with the highest average low temperature is July (17.3°C).
The coldest month (with the lowest average low temperature) is February (-0.5°C).
Average pressure in December
Isti, Iran
- Average pressure in December: 1022mbar
The month with the highest atmospheric pressure is November (1022.1mbar).
The month with the lowest atmospheric pressure is July (1009.4mbar).
Average wind speed in December
Isti, Iran
- Average wind speed in December: 7.7km/h
The windiest months (with the highest average wind speed) are July and August (10km/h).
The calmest month (with the lowest average wind speed) is December (7.7km/h).
Average humidity in December
Isti, Iran
- Average humidity in December: 73%
The month with the highest relative humidity is October (78%).
The month with the lowest relative humidity is July (57%).
Average rainfall in December
Isti, Iran
- Average rainfall in December: 49mm
The wettest month (with the highest rainfall) is November (77mm).
The driest month (with the least rainfall) is July (13mm).
Average rainfall days in December
Isti, Iran
- Average rainfall days in December: 8.5 days
The month with the highest number of rainy days is October (16.3 days).
The month with the least rainy days is August (6.5 days).
Average snowfall in December
Isti, Iran
- Average snowfall in December: 253mm
The month with the highest snowfall is January (415mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in December
Isti, Iran
- Average snowfall days in December: 7.2 days
The month with the highest number of snowfall days is February (12.5 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
Isti, Iran
- Average daylight in December: 9h and 3min
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: 5h and 5min
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 30min).
Average sunshine days in December
Isti, Iran
- Average sunshine days in December: 17.5 days
The month with the most sunshine days is August (21.8 days).
The month with the least sunshine days is April (8.2 days).
Average UV index in December
Isti, Iran
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March and December (UV index 2).
Average cloud cover in December
Isti, Iran
- Average cloud cover in December: 34
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is June (Cloud cover 15).
Average visibility in December
Isti, Iran
- Average visibility in December: 9km
The months with the highest visibility are May, June, July and August (10km).
The month with the lowest visibility is February (8km).
