Arak (formerly Soltanabad) is a city of 520,000 inhabitants located in the central-western part of Iran, in the province of Markazi, at 34 degrees north latitude and 1,700 meters (5,575 ft) above sea level.
, from December to February, is cold, with a daily average around freezing. Fog can form during periods of stable weather.
Given the low temperatures, snowfalls are quite frequent, although generally not abundant, given the low level of precipitation. During cold spells, the temperature can drop to -25 °C (-13 °F) or below. The coldest record is -32.7 °C (-26.7 °F), set it January 2008. That month, the daily average was -10.9 °C (12.4 °F).
, from March to May, is an unstable season, with temperature changes and gusts of wind. Furthermore, March and April are the rainiest months of the year.
, from June to August, is very hot and sunny. Fortunately, however, the air is dry. During heatwaves, temperatures can reach 40 °C (104 °F). The hottest records are 41/42 °C (106/108 °F).
. Here are the average temperatures.
January, the coldest month of the year, is generally a cold month. The average temperature is of
0.1 °C, with a minimum of
-5 °C and a maximum of
5.2 °C.
On the coldest nights of the month, the temperature usually drops to around
-14.5 °C. However, it dropped to
-32.7 °C in January 2008.
On the warmest days of the month, the temperature usually reaches around
13.5 °C. However, it reached
18.2 °C in January 2003.
Precipitation amounts to
36 mm, distributed over 6 days.
The day lasts on average 10 hours and 10 minutes.
There are on average 5 hours of sunshine per day. So, the sun shines 50% of the time.
The average humidity is 68%.
The average wind speed is of
5 kph.
February is generally a cold month. The average temperature is of
3.2 °C, with a minimum of
-2.5 °C and a maximum of
8.8 °C.
On the coldest nights of the month, the temperature usually drops to around
-10.5 °C. However, it dropped to
-25.2 °C in February 2008.
On the warmest days of the month, the temperature usually reaches around
17 °C. However, it reached
20 °C in February 2018.
Precipitation amounts to
35.5 mm, distributed over 5 days.
The day lasts on average 11 hours and 0 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 59% of the time.
The average humidity is 59%.
The average wind speed is of
7.1 kph.
March is generally a quite mild month. The average temperature is of
8.2 °C, with a minimum of
2 °C and a maximum of
14.4 °C.
On the coldest nights of the month, the temperature usually drops to around
-5 °C. However, it dropped to
-22 °C in March 1992.
On the warmest days of the month, the temperature usually reaches around
21.5 °C. However, it reached
27.8 °C in March 2018.
Precipitation amounts to
57.3 mm, distributed over 7 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 7 hours of sunshine per day. So, the sun shines 58% of the time.
The average humidity is 48%.
The average wind speed is of
9 kph.
April is generally a mild month. The average temperature is of
13.4 °C, with a minimum of
7 °C and a maximum of
19.9 °C.
On the coldest nights of the month, the temperature usually drops to around
0.5 °C. However, it dropped to
-4.4 °C in April 1997.
On the warmest days of the month, the temperature usually reaches around
26.5 °C. However, it reached
31 °C in April 2008.
Precipitation amounts to
55.2 mm, distributed over 7 days.
The day lasts on average 13 hours and 5 minutes.
There are on average 7.5 hours of sunshine per day. So, the sun shines 59% of the time.
The average humidity is 45%.
The average wind speed is of
9.1 kph.
May is generally a warm month. However, there are remarkable differences between night and day. The average temperature is of
18.6 °C, with a minimum of
11.3 °C and a maximum of
25.8 °C.
On the coldest nights of the month, the temperature usually drops to around
6 °C. However, it dropped to
3 °C in May 1992.
On the warmest days of the month, the temperature usually reaches around
31.5 °C. However, it reached
36 °C in May 1993.
Precipitation amounts to
26.9 mm, distributed over 5 days.
The day lasts on average 14 hours and 0 minutes.
There are on average 9.5 hours of sunshine per day. So, the sun shines 66% of the time.
The average humidity is 38%.
The average wind speed is of
8.8 kph.
June is generally a warm to hot month. However, there are remarkable differences between night and day. The average temperature is of
24.4 °C, with a minimum of
16.2 °C and a maximum of
32.5 °C.
On the coldest nights of the month, the temperature usually drops to around
12 °C. However, it dropped to
9.8 °C in June 2009.
On the warmest days of the month, the temperature usually reaches around
37 °C. However, it reached
40.2 °C in June 2015.
Precipitation amounts to only
3.6 mm, and all occurs in one day.
The day lasts on average 14 hours and 25 minutes. So the days are long. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.
There are on average 11.5 hours of sunshine per day. So, the sun shines 78% of the time.
The average humidity is 24%. Hence, the air is normally dry.
The average wind speed is of
8.4 kph.
July, the hottest month of the year, is generally a very hot month. However, there are remarkable differences between night and day. The average temperature is of
27.8 °C, with a minimum of
19.8 °C and a maximum of
35.7 °C.
On the coldest nights of the month, the temperature usually drops to around
15 °C. However, it dropped to
11 °C in July 2011.
On the warmest days of the month, the temperature usually reaches around
39.5 °C. However, it reached
41.6 °C in July 2013.
Precipitation amounts to only
1.4 mm, distributed over 0 days.
The day lasts on average 14 hours and 10 minutes. So the days are long.
There are on average 10.5 hours of sunshine per day. So, the sun shines 74% of the time.
The average humidity is 23%. Hence, the air is normally dry.
The average wind speed is of
8 kph.
August is generally a warm to hot month. However, there are remarkable differences between night and day. The average temperature is of
26.7 °C, with a minimum of
18.5 °C and a maximum of
34.9 °C.
On the coldest nights of the month, the temperature usually drops to around
14.5 °C. However, it dropped to
10.8 °C in August 2011.
On the warmest days of the month, the temperature usually reaches around
38 °C. However, it reached
40.6 °C in August 2006.
Precipitation amounts to only
1.7 mm, distributed over 0 days.
The day lasts on average 13 hours and 25 minutes.
There are on average 11 hours of sunshine per day. So, the sun shines 80% of the time.
The average humidity is 23%. Hence, the air is normally dry.
The average wind speed is of
7.2 kph.
September is generally a warm month. However, there are remarkable differences between night and day. The average temperature is of
22.1 °C, with a minimum of
13.5 °C and a maximum of
30.7 °C.
On the coldest nights of the month, the temperature usually drops to around
8.5 °C. However, it dropped to
4 °C in September 2015.
On the warmest days of the month, the temperature usually reaches around
34.5 °C. However, it reached
38.6 °C in September 2013.
Precipitation amounts to only
1.1 mm, distributed over 0 days.
The day lasts on average 12 hours and 25 minutes.
There are on average 10 hours of sunshine per day. So, the sun shines 82% of the time.
The average humidity is 24%. Hence, the air is normally dry.
The average wind speed is of
6.7 kph.
October is generally a very mild month. However, there are remarkable differences between night and day. The average temperature is of
15.8 °C, with a minimum of
8.1 °C and a maximum of
23.4 °C.
On the coldest nights of the month, the temperature usually drops to around
3 °C. However, it dropped to
-1.2 °C in October 2004.
On the warmest days of the month, the temperature usually reaches around
29 °C. However, it reached
31.2 °C in October 2019.
Precipitation amounts to
17.5 mm, distributed over 3 days.
The day lasts on average 11 hours and 20 minutes.
There are on average 8.5 hours of sunshine per day. So, the sun shines 73% of the time.
The average humidity is 38%.
The average wind speed is of
6.2 kph.
November is generally a quite mild month. The average temperature is of
8 °C, with a minimum of
2 °C and a maximum of
14 °C.
On the coldest nights of the month, the temperature usually drops to around
-5 °C. However, it dropped to
-14 °C in November 2016.
On the warmest days of the month, the temperature usually reaches around
21 °C. However, it reached
25 °C in November 2007.
Precipitation amounts to
39.1 mm, distributed over 5 days.
The day lasts on average 10 hours and 25 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 57% of the time.
The average humidity is 57%.
The average wind speed is of
5 kph.
December is generally a cold month. The average temperature is of
3.2 °C, with a minimum of
-2 °C and a maximum of
8.3 °C.
On the coldest nights of the month, the temperature usually drops to around
-9.5 °C. However, it dropped to
-17.6 °C in December 1994.
On the warmest days of the month, the temperature usually reaches around
15.5 °C. However, it reached
21.8 °C in December 2017.
Precipitation amounts to
40.2 mm, distributed over 6 days.
The day lasts on average 9 hours and 55 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
There are on average 5 hours of sunshine per day. So, the sun shines 50% of the time.
The average humidity is 67%.
The average wind speed is of
4.4 kph.