Warsaw
Poland
| Season | Autumn | Winter | Spring | Summer | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Sep | Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Year |
| Record high, °C | 27 | 23 | 16 | 16 | 12 | 17 | 19 | 25 | 28 | 29 | 31 | 31 | 31 |
| Average high, °C | 16 | 12 | 5 | 2 | 0 | 1 | 6 | 11 | 16 | 18 | 20 | 20 | 11 |
| Average temperature, °C | 13 | 9 | 3 | 0 | -1 | -1 | 3 | 7 | 12 | 15 | 17 | 17 | 8 |
| Average low, °C | 10 | 6 | 1 | -1 | -3 | -3 | 0 | 4 | 8 | 11 | 13 | 13 | 5 |
| Record low, °C | 1 | -5 | -15 | 0 | -23 | -21 | -16 | -5 | -1 | 2 | 5 | 5 | -23 |
| Rain, days | 11 | 11 | 11 | 9 | 7 | 5 | 9 | 11 | 13 | 14 | 11 | 12 | 124 |
| Snow, days | 0 | 1 | 6 | 11 | 12 | 11 | 7 | 4 | 0 | 0 | 0 | 0 | 52 |
| Fog, days | 19 | 18 | 20 | 21 | 20 | 19 | 20 | 17 | 15 | 18 | 18 | 19 | 224 |
| Thunderstorms, days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 4 | 3 | 2 | 3 | 13 |
| Average precipitation, mm. | 90 | 60 | 90 | 110 | 70 | 70 | 60 | 70 | 120 | 170 | 130 | 160 | 1200 |
| Relative humidity, % | 80 | 85 | 90 | 90 | 85 | 85 | 80 | 70 | 70 | 75 | 75 | 75 | 80 |
| Relative humidity morning, % | 86 | 82 | 85 | 85 | 82 | 83 | 82 | 80 | 80 | 82 | 82 | 83 | 83 |
| Relative humidity evening, % | 69 | 71 | 81 | 82 | 78 | 75 | 70 | 63 | 64 | 68 | 62 | 63 | 71 |
| Wind speed, km/h | 14 | 14 | 16 | 17 | 16 | 16 | 16 | 14 | 12 | 12 | 9 | 12 | 14 |
| Day Length, часов | 13 | 11 | 10 | 9 | 9 | 11 | 13 | 14 | 16 | 17 | 17 | 15 | 13 |
| Dew point, °C | 9 | 5 | 0 | -2 | -4 | -4 | 0 | 2 | 7 | 10 | 12 | 12 | 47 |
| Growing degree-day, °C | 108 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 78 | 142 | 215 | 215 | 758 |
| Solar radiation, global, Mj/m2 | 11 | 6 | 4 | 3 | 4 | 6 | 10 | 13 | 18 | 17 | 18 | 16 | 10 |