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's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from November's cool 11.4°C (52.5°F) to a chilly 6.6°C (43.9°F). Rostam Rah's temperature in December lowers to a consistent average of -1.1°C (30°F) during the nights.Humidity
In December, the average relative humidity is 58%.Rainfall
In Rostam Rah, in December, during 8.8 rainfall days, 52mm (2.05") of precipitation is typically accumulated. In Rostam Rah, during the entire year, the rain falls for 83.6 days and collects up to 350mm (13.78") of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Rostam Rah, in December, during 2.7 snowfall days, 116mm (4.57") of snow is typically accumulated. In Rostam Rah, during the entire year, snow falls for 17.6 days and aggregates up to 442mm (17.4") of snow.Daylight
The month with the shortest days in Rostam Rah is December, with an average of 9h and 54min of daylight.On the first day of the month, sunrise is at 07:01 and sunset at 17:05. On the last day of December, sunrise is at 07:19 and sunset at 17:15 +0330.
Sunshine
In December, the average sunshine is 6.8h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index, 2 during December, leads to the following recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold during December?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December in Rostam Rah?
What time are sunrise and sunset in December in Rostam Rah?
How many hours of sunshine does Rostam Rah have in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Rostam Rah, Iran
- Average high temperature in December: 6.6°C
The warmest month (with the highest average high temperature) is July (33.4°C).
The month with the lowest average high temperature is January (3.7°C).
- Average low temperature in December: -1.1°C
The month with the highest average low temperature is July (17.2°C).
The coldest month (with the lowest average low temperature) is January (-3.6°C).
Average pressure in December
Rostam Rah, Iran
- Average pressure in December: 1021.3mbar
The month with the highest atmospheric pressure is December (1021.3mbar).
The month with the lowest atmospheric pressure is July (1004.7mbar).
Average wind speed in December
Rostam Rah, Iran
- Average wind speed in December: 7.7km/h
The windiest month (with the highest average wind speed) is March (10.7km/h).
The calmest month (with the lowest average wind speed) is November (7.2km/h).
Average humidity in December
Rostam Rah, Iran
- Average humidity in December: 58%
The months with the highest relative humidity are January and February (68%).
The month with the lowest relative humidity is July (19%).
Average rainfall in December
Rostam Rah, Iran
- Average rainfall in December: 52mm
The wettest month (with the highest rainfall) is March (64mm).
The driest month (with the least rainfall) is August (1mm).
Average rainfall days in December
Rostam Rah, Iran
- Average rainfall days in December: 8.8 days
The month with the highest number of rainy days is April (13.6 days).
The month with the least rainy days is August (1.3 days).
Average snowfall in December
Rostam Rah, Iran
- Average snowfall in December: 116mm
The month with the highest snowfall is January (153mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Rostam Rah, Iran
- Average snowfall days in December: 2.7 days
The month with the highest number of snowfall days is January (6.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Rostam Rah, Iran
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 6h and 5min
The months with the most sunshine are June, July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 36min).
Average sunshine days in December
Rostam Rah, Iran
- Average sunshine days in December: 20.5 days
The month with the most sunshine days is August (28.9 days).
The month with the least sunshine days is April (14.3 days).
Average UV index in December
Rostam Rah, Iran
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in December
Rostam Rah, Iran
- Average cloud cover in December: 26
The month with the most cloud cover is January (Cloud cover 31).
The month with the least cloud cover is September (Cloud cover 4).
Average visibility in December
Rostam Rah, 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).
