Common information
- Country
- Italy
- Population
- 97 050
Weather, climate, temperature by months in Terni
| Season | Autumn | Winter | Spring | Summer | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Sep | Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Year |
| Record high, °C | 39 | 30 | 23 | 19 | 18 | 19 | 25 | 26 | 33 | 37 | 39 | 40 | 40 |
| Average high, °C | 13 | 9 | 4 | 1 | -0 | -1 | 1 | 4 | 9 | 12 | 16 | 16 | 7 |
| Average temperature, °C | 10 | 6 | 2 | -1 | -3 | -3 | -1 | 1 | 6 | 10 | 13 | 13 | 4 |
| Average low, °C | 7 | 4 | -1 | -4 | -5 | -5 | -3 | -1 | 3 | 7 | 10 | 10 | 2 |
| Record low, °C | 7 | 2 | -2 | -1 | -5 | -6 | -5 | -2 | 5 | 9 | 12 | 12 | -6 |
| Rain, days | 6 | 9 | 9 | 9 | 8 | 7 | 7 | 6 | 6 | 4 | 2 | 3 | 76 |
| Snowfall, cm. | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Average precipitation, mm. | 88 | 99 | 0 | 0 | 0 | 0 | 39 | 62 | 76 | 89 | 55 | 73 | 581 |
| Relative humidity, % | 77 | 77 | 78 | 79 | 79 | 80 | 80 | 81 | 80 | 79 | 70 | 73 | 78 |
| Day Length, часов | 13 | 12 | 10 | 10 | 10 | 11 | 12 | 14 | 15 | 16 | 16 | 14 | 13 |
| Dew point, °C | 13 | 10 | 7 | 4 | 2 | 3 | 6 | 8 | 11 | 13 | 15 | 15 | 107 |
| Growing degree-day, °C | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 98 | 96 | 197 |
| Solar radiation, global, Mj/m2 | 16 | 10 | 6 | 5 | 6 | 9 | 13 | 16 | 20 | 23 | 24 | 21 | 14 |