Common information
- Country
- Norway
- Population
- 21 970
Weather, climate, temperature by months in Halden
| Season | Autumn | Winter | Spring | Summer | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Sep | Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Year |
| Average high, °C | 14 | 9 | 4 | 1 | -1 | -1 | 3 | 8 | 15 | 19 | 20 | 19 | 9 |
| Average temperature, °C | 12 | 8 | 2 | -1 | -3 | -3 | 0 | 5 | 11 | 15 | 17 | 16 | 6 |
| Average low, °C | 7 | 4 | -1 | -5 | -7 | -7 | -4 | -1 | 5 | 9 | 11 | 10 | 2 |
| Average precipitation, mm. | 87 | 101 | 89 | 60 | 55 | 45 | 48 | 42 | 52 | 70 | 75 | 80 | 804 |
| Day Length, часов | 14 | 11 | 9 | 7 | 8 | 10 | 13 | 15 | 18 | 20 | 19 | 16 | 13 |
| Growing degree-day, °C | 45 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 19 | 143 | 208 | 171 | 586 |
| Solar radiation, global, Mj/m2 | 10 | 5 | 2 | 1 | 1 | 4 | 8 | 13 | 19 | 20 | 20 | 15 | 10 |