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
A mild shift in the average high-temperature occurs in December, reducing from a cool 12.5°C (54.5°F) in November to a frosty 9.1°C (48.4°F). Zak reports a consistent average low-temperature of 0.2°C (32.4°F) throughout December nights.Humidity
In December, the average relative humidity is 51%.Rainfall
In December, the rain falls for 4.5 days. Throughout December, 6mm (0.24") of precipitation is accumulated. In Zak, Iran, during the entire year, the rain falls for 63.6 days and collects up to 158mm (6.22") of precipitation.Snowfall
Months with snowfall in Zak are January through April, November and December. In Zak, in December, during 2.5 snowfall days, 20mm (0.79") of snow is typically accumulated. In Zak, during the entire year, snow falls for 15.3 days and aggregates up to 268mm (10.55") 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 the month, sunrise is at 06:25 and sunset at 16:16. On the last day of December, sunrise is at 06:43 and sunset at 16:26 +0330.
Sunshine
In December, the average sunshine is 7h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index of 2 during December leads to these instructions:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
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?
How many days 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 is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Zak, Iran
- Average high temperature in December: 9.1°C
The warmest month (with the highest average high temperature) is July (32.1°C).
The month with the lowest average high temperature is January (7.5°C).
- Average low temperature in December: 0.2°C
The month with the highest average low temperature is July (20.9°C).
The coldest month (with the lowest average low temperature) is January (-1°C).
Average pressure in December
Zak, Iran
- Average pressure in December: 1022.9mbar
The month with the highest atmospheric pressure is December (1022.9mbar).
The month with the lowest atmospheric pressure is July (1007.2mbar).
Average wind speed in December
Zak, Iran
- Average wind speed in December: 8.2km/h
The windiest month (with the highest average wind speed) is July (15.7km/h).
The calmest month (with the lowest average wind speed) is November (7.8km/h).
Average humidity in December
Zak, Iran
- Average humidity in December: 51%
The month with the highest relative humidity is February (59%).
The month with the lowest relative humidity is July (20%).
Average rainfall in December
Zak, Iran
- Average rainfall in December: 6mm
The wettest month (with the highest rainfall) is April (35mm).
The driest months (with the least rainfall) are July, August and September (0mm).
Average rainfall days in December
Zak, Iran
- Average rainfall days in December: 4.5 days
The month with the highest number of rainy days is March (12 days).
The month with the least rainy days is August (0.3 days).
Average snowfall in December
Zak, Iran
- Average snowfall in December: 20mm
The month with the highest snowfall is February (126mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Zak, Iran
- Average snowfall days in December: 2.5 days
The month with the highest number of snowfall days is February (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
Zak, 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: 7h and 0min
The month with the most sunshine is August (Average sunshine: 12h and 30min).
The month with the least sunshine is February (Average sunshine: 6h and 54min).
Average sunshine days in December
Zak, Iran
- Average sunshine days in December: 24.5 days
The month with the most sunshine days is August (30.4 days).
The month with the least sunshine days is April (14.8 days).
Average UV index in December
Zak, Iran
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Zak, Iran
- Average cloud cover in December: 18
The month with the most cloud cover is February (Cloud cover 26).
The month with the least cloud cover is August (Cloud cover 2).
Average visibility in December
Zak, 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).
