天気予報を見ていると分かりづらいのが「現在の雨がどれくらいの量か？」ということ。
何ミリの雨が、どれくらいの影響及ぼすのか、どれくらいの振り方なのかをまとめました。
雨量・降水量について
弱い雨
| 0.1mm | 0.2mm | 0.3mm |
| 0.4mm | 0.5mm | 0.6mm |
| 0.7mm | 0.8mm | 0.9mm |
| 1mm | 2mm | 3mm |
雨
| 4mm | 5mm | 6mm |
| 7mm | 8mm | 9mm |
やや強い雨
| 10mm | 11mm | 12mm |
| 13mm | 14mm | 15mm |
| 16mm | 17mm | 18mm |
| 19mm | – | – |
強い雨
| 20mm | 21mm | 22mm |
| 23mm | 24mm | 25mm |
| 26mm | 27mm | 28mm |
| 29mm |
––
激しい雨
| 30mm | 31mm | 32mm |
| 33mm | 34mm | 35mm |
| 36mm | 37mm | 38mm |
| 39mm | 40mm | 41mm |
| 42mm | 43mm | 44mm |
| 45mm | 46mm | 47mm |
| 48mm | 49mm | – |
非常に激しい雨
| 50mm | 51mm | 52mm |
| 53mm | 54mm | 55mm |
| 56mm | 57mm | 58mm |
| 59mm | 60mm | 61mm |
| 62mm | 63mm | 64mm |
| 65mm | 66mm | 67mm |
| 68mm | 69mm | 70mm |
| 71mm | 72mm | 73mm |
| 74mm | 75mm | 76mm |
| 77mm | 78mm | 79mm |
猛烈な雨
| 80mm | 81mm | 82mm |
| 83mm | 84mm | 85mm |
| 86mm | 87mm | 88mm |
| 89mm | 90mm | 91mm |
| 92mm | 93mm | 94mm |
| 95mm | 96mm | 97mm |
| 98mm | 99mm | 100mm |