Common information
CountryBulgaria
Population82 467
Weather, climate, temperature by months in Pernik
| Season | Autumn | Winter | Spring | Summer | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Sep | Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Year |
| Record high, °C | 32 | 32 | 22 | 16 | 16 | 20 | 25 | 28 | 32 | 36 | 37 | 37 | 37 |
| Average high, °C | 22 | 16 | 7 | 3 | 2 | 4 | 9 | 14 | 18 | 22 | 25 | 25 | 14 |
| Average temperature, °C | 5 | 1 | -2 | -5 | -8 | -7 | -5 | -1 | 2 | 6 | 8 | 8 | 0 |
| Average low, °C | 11 | 6 | 1 | -2 | -3 | -2 | 1 | 5 | 9 | 12 | 14 | 13 | 5 |
| Record low, °C | -1 | -5 | -13 | -16 | -23 | -22 | -13 | -3 | 0 | 3 | 2 | 3 | -23 |
| Rain, days | 7 | 8 | 9 | 7 | 4 | 5 | 8 | 13 | 12 | 9 | 7 | 7 | 96 |
| Snow, days | 0 | 0 | 4 | 8 | 9 | 9 | 7 | 1 | 0 | 0 | 0 | 0 | 38 |
| Fog, days | 13 | 16 | 19 | 20 | 18 | 14 | 15 | 9 | 13 | 11 | 12 | 12 | 172 |
| Thunderstorms, days | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 6 | 7 | 6 | 4 | 28 |
| Average precipitation, mm. | 43 | 39 | 50 | 48 | 32 | 35 | 37 | 55 | 75 | 79 | 56 | 46 | 595 |
| Relative humidity, % | 70 | 75 | 80 | 85 | 85 | 75 | 65 | 65 | 70 | 70 | 65 | 65 | 73 |
| Relative humidity morning, % | 80 | 81 | 83 | 81 | 79 | 77 | 78 | 77 | 82 | 82 | 79 | 78 | 80 |
| Relative humidity evening, % | 47 | 57 | 71 | 73 | 69 | 63 | 55 | 51 | 54 | 53 | 47 | 46 | 57 |
| Wind speed, km/h | 14 | 9 | 14 | 16 | 14 | 12 | 12 | 16 | 14 | 14 | 14 | 14 | 14 |
| Monthly sunshine, часов | 212 | 158 | 95 | 65 | 81 | 99 | 148 | 167 | 221 | 258 | 299 | 281 | 2085 |
| Day Length, часов | 13 | 12 | 10 | 10 | 10 | 11 | 12 | 14 | 15 | 16 | 16 | 14 | 13 |
| Dew point, °C | 8 | 5 | 0 | -3 | -5 | -4 | -1 | 2 | 7 | 11 | 11 | 11 | 42 |
| Growing degree-day, °C | 150 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 121 | 200 | 310 | 276 | 1056 |
| Solar radiation, global, Mj/m2 | 15 | 9 | 6 | 5 | 6 | 9 | 12 | 16 | 19 | 22 | 22 | 20 | 13 |