月ごとの値
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八幡 2018年（月ごとの値） 詳細（降水量）
| 月 | 降水量(mm) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 合計 | 日最大 | 1時間最大 | 10分間最大 | 各階級の日数 | |||||||||
| 値 | 日 | 値 | 日 時:分 | 値 | 日 時:分 | ≧1mm | ≧10mm | ≧30mm | ≧50mm | ≧70mm | ≧100mm | ||
| 78.5 | 23.5 | 08 | 6.0 | 08 03:15 | 2.0 | 17 11:49 | 8 | 3 | 0 | 0 | 0 | 0 | |
| 35.5 | 14.0 | 10 | 5.5 | 28 19:52 | 1.5 | 28 19:47 | 7 | 1 | 0 | 0 | 0 | 0 | |
| 156.5 | 32.0 | 08 | 13.0 | 05 08:20 | 5.0 | 05 08:09 | 8 | 6 | 2 | 0 | 0 | 0 | |
| 58.5 | 31.0 | 24 | 6.5 | 24 10:22 | 1.5 | 24 10:28 | 6 | 1 | 1 | 0 | 0 | 0 | |
| 140.0 | 40.5 | 07 | 9.5 | 07 04:40 | 3.5 | 07 01:11 | 9 | 6 | 1 | 0 | 0 | 0 | |
| 247.0 | 52.5 | 30 | 23.0 | 20 02:14 | 9.0 | 30 16:28 | 11 | 6 | 6 | 1 | 0 | 0 | |
| 363.5 | 180.5 | 06 | 61.5 | 06 07:53 | 14.5 | 06 07:41 | 9 | 5 | 4 | 3 | 2 | 1 | |
| 34.0 | 30.5 | 15 | 16.5 | 15 17:12 | 8.0 | 15 16:22 | 3 | 1 | 1 | 0 | 0 | 0 | |
| 231.5 | 59.5 | 01 | 33.0 | 01 07:15 | 15.0 | 07 13:27 | 13 | 6 | 4 | 1 | 0 | 0 | |
| 46.0 | 23.0 | 19 | 6.0 | 19 03:50 | 2.5 | 19 03:47 | 6 | 1 | 0 | 0 | 0 | 0 | |
| 28.5 | 15.5 | 09 | 10.0 | 09 01:45 | 2.5 | 09 01:01 | 7 | 1 | 0 | 0 | 0 | 0 | |
| 75.0 | 15.0 | 20 | 6.0 | 20 06:40 | 1.5 | 23 12:07 | 12 | 3 | 0 | 0 | 0 | 0 | |