Common information
- Country
- Iran
- Population
- 503 647
Weather, climate, temperature by months in Arak
| Season | Autumn | Winter | Spring | Summer | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Sep | Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Year |
| Average high, °C | 30 | 22 | 13 | 6 | 3 | 5 | 12 | 18 | 24 | 31 | 35 | 34 | 19 |
| Average temperature, °C | 20 | 13 | 6 | -0 | -4 | -1 | 5 | 11 | 16 | 22 | 25 | 24 | 11 |
| Average low, °C | 8 | 4 | -1 | -5 | -8 | -7 | -1 | 3 | 7 | 10 | 15 | 14 | 3 |
| Average precipitation, mm. | 0 | 10 | 22 | 38 | 43 | 41 | 49 | 53 | 37 | 5 | 3 | 1 | 302 |
| Relative humidity, % | 24 | 38 | 52 | 64 | 69 | 63 | 53 | 44 | 38 | 26 | 24 | 23 | 43 |
| Wind speed, km/h | 7 | 7 | 5 | 5 | 5 | 7 | 10 | 10 | 9 | 8 | 8 | 8 | 7 |
| Day Length, часов | 13 | 12 | 11 | 10 | 11 | 11 | 12 | 12 | 15 | 15 | 15 | 14 | 13 |
| Dew point, °C | -2 | -1 | -3 | -6 | -8 | -7 | -4 | -1 | 2 | 1 | 3 | 2 | -24 |
| Growing degree-day, °C | 285 | 87 | 0 | 0 | 0 | 0 | 0 | 33 | 189 | 351 | 471 | 434 | 1850 |
| Solar radiation, global, Mj/m2 | 20 | 14 | 11 | 9 | 10 | 13 | 16 | 20 | 23 | 26 | 25 | 23 | 17 |