December weather forecast
Jalal Deh, Iran

December

Weather in December

The first month of the winter, December, is still a refreshing month in Jalal Deh, Iran, with an average temperature varying between 13.7°C (56.7°F) and 8.6°C (47.5°F).

Temperature

The arrival of December brings an average high-temperature of a mild 13.7°C (56.7°F), closely following the temperature pattern of November. During December, Jalal Deh consistently records a temperature low averaging a chilly 8.6°C (47.5°F).

Humidity

In December, the average relative humidity is 70%.

Rainfall

In Jalal Deh, in December, during 10.3 rainfall days, 41mm (1.61") of precipitation is typically accumulated. In Jalal Deh, during the entire year, the rain falls for 130.7 days and collects up to 563mm (22.17") of precipitation.

Snowfall

January through March, November and December are months with snowfall in Jalal Deh. In December, it is snowing for 0.1 days. Throughout December, 5mm (0.2") of snow is accumulated. In Jalal Deh, during the entire year, snow falls for 4 days and aggregates up to 267mm (10.51") of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 42min of daylight.
On the first day of the month, sunrise is at 07:05 and sunset at 16:55. On the last day of December, sunrise is at 07:23 and sunset at 17:05 +0330.

Sunshine

The average sunshine in December is 6h.

UV index

January through March and December, with an average maximum UV index of 3, are months with the lowest UV index in Jalal Deh. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: In December, an average UV index of 3 transforms into the following instructions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.

Frequently asked questions

What is the average December temperature?
An average high-temperature, in December, in Jalal Deh, is 13.7°C (56.7°F) and the average low-temperature is 8.6°C (47.5°F). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is appraised at 32°C (89.6°F).
What is the average humidity in December?
The average relative humidity in December in Jalal Deh is 70%.
How much does it rain in December?
In Jalal Deh, in December, during 10.3 rainfall days, 41mm (1.61") of precipitation is typically accumulated.
How many days does it snow in December?
In December, it is snowing for 0.1 days. Throughout December, 5mm (0.2") of snow is accumulated.
What is the month with the shortest days?
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 December, the average day length is 9h and 41min.
What time are sunrise and sunset in December?
On the first day of December, sunrise is at 07:05 and sunset at 16:55. On the last day of the month, sunrise is at 07:23 and sunset at 17:05 +0330.
How long on average sun shines in December?
In December, the average sunshine duration in Jalal Deh is 6h.
When is the lowest UV index?
January through March and December, with an average maximum UV index of 3, are months with the lowest UV index.
What is the UV index reading in December?
The average daily maximum UV index in December is 3. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December - Jalal Deh, Iran
Average temperature in December
Jalal Deh, Iran
  • Average high temperature in December: 13.7°C

The warmest month (with the highest average high temperature) is July (29.3°C).
The month with the lowest average high temperature is February (11.3°C).

  • Average low temperature in December: 8.6°C

The month with the highest average low temperature is August (22.4°C).
The coldest month (with the lowest average low temperature) is February (6°C).

Average pressure in December - Jalal Deh, Iran
Average pressure in December
Jalal Deh, Iran
  • Average pressure in December: 1021.9mbar

The month with the highest atmospheric pressure is December (1021.9mbar).
The month with the lowest atmospheric pressure is July (1009mbar).

Average wind speed in December - Jalal Deh, Iran
Average wind speed in December
Jalal Deh, Iran
  • Average wind speed in December: 9.1km/h

The windiest month (with the highest average wind speed) is January (9.8km/h).
The calmest month (with the lowest average wind speed) is September (8.1km/h).

Average humidity in December - Jalal Deh, Iran
Average humidity in December
Jalal Deh, Iran
  • Average humidity in December: 70%

The month with the highest relative humidity is October (75%).
The months with the lowest relative humidity are June and July (65%).

Average rainfall in December - Jalal Deh, Iran
Average rainfall in December
Jalal Deh, Iran
  • Average rainfall in December: 41mm

The wettest month (with the highest rainfall) is November (89mm).
The driest month (with the least rainfall) is June (17mm).

Average rainfall days in December - Jalal Deh, Iran
Average rainfall days in December
Jalal Deh, Iran
  • Average rainfall days in December: 10.3 days

The month with the highest number of rainy days is October (15.1 days).
The month with the least rainy days is June (6.8 days).

Average snowfall in December - Jalal Deh, Iran
Average snowfall in December
Jalal Deh, Iran
  • Average snowfall in December: 5mm

The month with the highest snowfall is February (198mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in December - Jalal Deh, Iran
Average snowfall days in December
Jalal Deh, Iran
  • Average snowfall days in December: 0.1 days

The month with the highest number of snowfall days is February (2.2 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 - Jalal Deh, Iran
Average daylight in December /
Average sunshine in December
Jalal Deh, 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 0min

The month with the most sunshine is June (Average sunshine: 11h and 30min).
The months with the least sunshine are October and November (Average sunshine: 5h and 30min).

Average sunshine days in December - Jalal Deh, Iran
Average sunshine days in December
Jalal Deh, Iran
  • Average sunshine days in December: 19.3 days

The month with the most sunshine days is July (20.7 days).
The month with the least sunshine days is October (12.8 days).

Average UV index in December - Jalal Deh, Iran
Average UV index in December
Jalal Deh, Iran
  • Average UV index in December: 3

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, March and December (UV index 3).

Average cloud cover in December - Jalal Deh, Iran
Average cloud cover in December
Jalal Deh, Iran
  • Average cloud cover in December: 31

The month with the most cloud cover is February (Cloud cover 40).
The month with the least cloud cover is June (Cloud cover 15).

Average visibility in December - Jalal Deh, Iran
Average visibility in December
Jalal Deh, Iran
  • Average visibility in December: 10km

The months with the highest visibility are January, March, May, June, July, August, September and December (10km).
The months with the lowest visibility are February, April, October and November (9km).

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