旬ごとの値
 |  |
 |  |
 |  |  |  |  |
 |  |  |  |  |  |
 |  |  |  |
飯山（長野県) 2018年（旬ごとの値） 詳細（降水量）
| 月 | 旬 | 降水量 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 合計 (mm) |
最大日 | 最大1時間 | 最大10分間 | 各階級の日数 | ||||||||||
| 降水量 (mm) | 日 | 降水量 (mm) | 日 時:分 | 降水量 (mm) | 日 時:分 | ≧1mm | ≧10mm | ≧30mm | ≧50mm | ≧70mm | ≧100mm | |||
| 上旬 | 68.5 | 21.0 | 04 | 3.0 | 06 17:09 | 1.0 | 09 05:48 | 8 | 3 | 0 | 0 | 0 | 0 | |
| 中旬 | 28.5 | 9.5 | 13 | 3.0 | 17 21:26 | 1.0 | 17 21:06 | 6 | 0 | 0 | 0 | 0 | 0 | |
| 下旬 | 65.0 | 13.0 | 30 | 3.5 | 30 07:04 | 1.0 | 30 07:02 | 8 | 3 | 0 | 0 | 0 | 0 | |
| 上旬 | 25.0 | 9.0 | 05 | 5.0 | 05 03:37 | 1.5 | 05 03:30 | 5 | 0 | 0 | 0 | 0 | 0 | |
| 中旬 | 24.0 | 12.5 | 17 | 3.0 | 17 12:10 | 1.0 | 17 11:35 | 8 | 1 | 0 | 0 | 0 | 0 | |
| 下旬 | 3.0 | 1.5 | 24 | 0.5 | 25 00:24 | 0.5 | 24 23:34 | 2 | 0 | 0 | 0 | 0 | 0 | |
| 上旬 | 47.0 | 20.5 | 09 | 6.0 | 01 06:45 | 2.5 | 01 06:37 | 4 | 2 | 0 | 0 | 0 | 0 | |
| 中旬 | 5.5 | 3.0 | 19 | 1.0 | 20 02:43 | 0.5 | 20 04:24 | 2 | 0 | 0 | 0 | 0 | 0 | |
| 下旬 | 6.0 | 6.0 | 22 | 3.0 | 22 06:14 | 1.0 | 22 05:39 | 1 | 0 | 0 | 0 | 0 | 0 | |
| 上旬 | 8.5 | 5.0 | 06 | 2.5 | 06 21:19 | 1.0 | 06 20:29 | 3 | 0 | 0 | 0 | 0 | 0 | |
| 中旬 | 25.0 | 8.5 | 15 | 3.0 | 15 04:34 | 1.0 | 15 04:28 | 3 | 0 | 0 | 0 | 0 | 0 | |
| 下旬 | 16.5 | 16.5 | 25 | 4.0 | 25 08:22 | 1.0 | 25 08:11 | 1 | 1 | 0 | 0 | 0 | 0 | |
| 上旬 | 61.5 | 23.5 | 07 | 6.5 | 07 15:49 | 2.0 | 07 15:04 | 6 | 2 | 0 | 0 | 0 | 0 | |
| 中旬 | 22.5 | 7.5 | 19 | 5.0 | 19 04:32 | 2.0 | 19 04:06 | 5 | 0 | 0 | 0 | 0 | 0 | |
| 下旬 | 14.5 | 6.5 | 31 | 2.5 | 31 20:33 | 1.0 | 31 18:00 | 4 | 0 | 0 | 0 | 0 | 0 | |
| 上旬 | 1.5 | 1.5 | 01 | 1.0 | 01 07:45 | 0.5 | 01 07:11 | 1 | 0 | 0 | 0 | 0 | 0 | |
| 中旬 | 22.5 | 12.5 | 12 | 8.0 | 12 13:06 | 3.5 | 12 12:22 | 2 | 2 | 0 | 0 | 0 | 0 | |
| 下旬 | 41.5 | 37.0 | 28 | 13.0 | 28 08:50 | 5.0 | 28 10:37 | 4 | 1 | 1 | 0 | 0 | 0 | |
| 上旬 | 122.0 | 110.0 | 05 | 16.5 | 05 17:21 | 5.5 | 05 07:20 | 5 | 1 | 1 | 1 | 1 | 1 | |
| 中旬 | 1.5 | 1.5 | 12 | 1.5 | 12 20:23 | 1.5 | 12 19:33 | 1 | 0 | 0 | 0 | 0 | 0 | |
| 下旬 | 0.0 | 0.0 | 31 | 0.0 | 31 24:00 | 0.0 | 31 24:00 | 0 | 0 | 0 | 0 | 0 | 0 | |
| 上旬 | 5.5 | 5.5 | 10 | 4.0 | 10 24:00 | 2.5 | 10 23:52 | 1 | 0 | 0 | 0 | 0 | 0 | |
| 中旬 | 60.0 | 27.5 | 16 | 13.0 | 14 20:12 | 7.5 | 14 19:23 | 6 | 2 | 0 | 0 | 0 | 0 | |
| 下旬 | 48.5 | 29.0 | 31 | 18.5 | 31 13:51 | 12.0 | 25 14:38 | 4 | 2 | 0 | 0 | 0 | 0 | |
| 上旬 | 85.5 | 24.5 | 08 | 12.5 | 10 12:10 | 4.5 | 05 00:31 | 7 | 3 | 0 | 0 | 0 | 0 | |
| 中旬 | 45.0 | 18.0 | 15 | 4.5 | 20 17:36 | 1.5 | 20 16:02 | 6 | 2 | 0 | 0 | 0 | 0 | |
| 下旬 | 58.0 | 19.5 | 25 | 4.0 | 22 08:13 | 1.0 | 30 23:59 | 6 | 2 | 0 | 0 | 0 | 0 | |
| 上旬 | 16.0 | 15.5 | 01 | 6.0 | 01 03:18 | 3.0 | 01 02:28 | 1 | 1 | 0 | 0 | 0 | 0 | |
| 中旬 | 42.0 | 15.0 | 20 | 9.5 | 19 17:06 | 4.5 | 19 16:16 | 6 | 2 | 0 | 0 | 0 | 0 | |
| 下旬 | 4.5 | 3.0 | 27 | 1.0 | 27 05:06 | 0.5 | 27 12:20 | 2 | 0 | 0 | 0 | 0 | 0 | |
| 上旬 | 8.0 | 8.0 | 06 | 3.5 | 06 07:31 | 1.5 | 06 06:57 | 1 | 0 | 0 | 0 | 0 | 0 | |
| 中旬 | 5.0 | 3.5 | 13 | 2.0 | 13 02:14 | 1.0 | 13 01:44 | 2 | 0 | 0 | 0 | 0 | 0 | |
| 下旬 | 10.0 | 3.5 | 23 | 2.5 | 23 00:59 | 1.0 | 22 16:27 | 4 | 0 | 0 | 0 | 0 | 0 | |
| 上旬 | 34.5 | 12.5 | 09 | 4.5 | 01 13:42 | 1.5 | 01 13:17 | 6 | 1 | 0 | 0 | 0 | 0 | |
| 中旬 | 64.5 | 15.5 | 12 | 4.0 | 19 17:18 | 2.0 | 19 16:47 | 8 | 4 | 0 | 0 | 0 | 0 | |
| 下旬 | 73.5 | 18.5 | 29 | 4.0 | 29 10:01 | 1.0 | 30 10:43 | 7 | 4 | 0 | 0 | 0 | 0 | |
- 値欄の記号の説明
- 2021年3月2日より、アメダスの日照時間は「推計気象分布（日照時間）」から得る推計値となりましたので、日照計による観測値と単純比較できません。詳しくは要素ごとの値の補足説明をご覧ください。