Tokyo
Japan
| Season | Autumn | Winter | Spring | Summer | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Sep | Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Year |
| Record high, °C | 34 | 27 | 24 | 21 | 17 | 20 | 23 | 27 | 33 | 31 | 36 | 36 | 36 |
| Average high, °C | 24 | 19 | 13 | 7 | 3 | 5 | 8 | 13 | 18 | 21 | 26 | 27 | 15 |
| Average temperature, °C | 20 | 12 | 8 | 3 | 0 | 1 | 3 | 8 | 13 | 17 | 22 | 23 | 11 |
| Average low, °C | 16 | 6 | 3 | -1 | -4 | -3 | -1 | 3 | 8 | 13 | 19 | 20 | 7 |
| Record low, °C | 5 | 1 | -4 | -10 | -11 | -11 | -8 | -5 | 0 | 5 | 11 | 12 | -11 |
| Rain, days | 8 | 7 | 4 | 3 | 3 | 4 | 4 | 7 | 6 | 7 | 7 | 7 | 67 |
| Snow, days | 0 | 0 | 3 | 16 | 25 | 22 | 15 | 1 | 0 | 0 | 0 | 0 | 82 |
| Fog, days | 12 | 12 | 10 | 8 | 5 | 4 | 8 | 11 | 12 | 15 | 17 | 17 | 131 |
| Thunderstorms, days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 4 |
| Snowfall, cm. | 0 | 0 | 1 | 6 | 18 | 15 | 10 | 4 | 0 | 0 | 0 | 0 | 54 |
| Average precipitation, mm. | 150 | 120 | 60 | 40 | 30 | 40 | 60 | 110 | 90 | 120 | 130 | 120 | 1070 |
| Relative humidity, % | 84 | 79 | 75 | 74 | 73 | 70 | 68 | 70 | 75 | 83 | 87 | 86 | 77 |
| Relative humidity morning, % | 89 | 87 | 82 | 78 | 78 | 79 | 78 | 80 | 82 | 88 | 90 | 89 | 83 |
| Relative humidity evening, % | 71 | 64 | 63 | 62 | 61 | 60 | 58 | 62 | 66 | 75 | 77 | 75 | 66 |
| Wind speed, km/h | 9 | 9 | 9 | 9 | 9 | 14 | 16 | 14 | 14 | 12 | 9 | 12 | 11 |
| Monthly sunshine, часов | 121 | 149 | 140 | 139 | 148 | 152 | 177 | 189 | 185 | 134 | 120 | 144 | 1796 |
| Day Length, часов | 13 | 12 | 11 | 10 | 10 | 11 | 12 | 14 | 15 | 15 | 15 | 14 | 13 |
| Dew point, °C | 16 | 10 | 3 | -1 | -4 | -3 | -1 | 3 | 9 | 14 | 19 | 20 | 85 |
| Growing degree-day, °C | 308 | 86 | 0 | 0 | 0 | 0 | 0 | 0 | 121 | 233 | 396 | 439 | 1584 |
| Solar radiation, global, Mj/m2 | 11 | 10 | 8 | 7 | 8 | 12 | 15 | 18 | 18 | 16 | 15 | 15 | 13 |