旬ごとの値
 |  |
 |  |
 |  |  |  |  |
 |  |  |  |  |  |
 |  |  |  |
佐久（長野県) 1981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 | 0 | 0 | 10 | 0 | 10 --:-- | /// | /// | 0 | 0 | 0 | 0 | 0 | 0 | |
| 中旬 | 1 | 1 | 11 | 1 | 11 08:00 | /// | /// | 1 | 0 | 0 | 0 | 0 | 0 | |
| 下旬 | 2 | 2 | 24 | 1 | 24 21:00 | /// | /// | 1 | 0 | 0 | 0 | 0 | 0 | |
| 上旬 | 1 | 1 | 01 | 1 | 01 12:00 | /// | /// | 1 | 0 | 0 | 0 | 0 | 0 | |
| 中旬 | 35 | 32 | 17 | 5 | 17 09:00 | /// | /// | 3 | 1 | 1 | 0 | 0 | 0 | |
| 下旬 | 10 | 5 | 24 | 2 | 24 10:00 | /// | /// | 3 | 0 | 0 | 0 | 0 | 0 | |
| 上旬 | 6 | 3 | 10 | 2 | 10 03:00 | /// | /// | 3 | 0 | 0 | 0 | 0 | 0 | |
| 中旬 | 9 | 5 | 15 | 2 | 15 05:00 | /// | /// | 2 | 0 | 0 | 0 | 0 | 0 | |
| 下旬 | 21 | 9 | 21 | 3 | 21 17:00 | /// | /// | 5 | 0 | 0 | 0 | 0 | 0 | |
| 上旬 | 38 | 17 | 02 | 4 | 10 08:00 | /// | /// | 5 | 2 | 0 | 0 | 0 | 0 | |
| 中旬 | 21 | 15 | 16 | 3 | 20 03:00 | /// | /// | 3 | 1 | 0 | 0 | 0 | 0 | |
| 下旬 | 5 | 4 | 25 | 2 | 25 12:00 | /// | /// | 2 | 0 | 0 | 0 | 0 | 0 | |
| 上旬 | 36 | 18 | 07 | 5 | 07 16:00 | /// | /// | 4 | 2 | 0 | 0 | 0 | 0 | |
| 中旬 | 26 | 17 | 17 | 6 | 17 23:00 | /// | /// | 3 | 1 | 0 | 0 | 0 | 0 | |
| 下旬 | 9 | 6 | 24 | 1 | 31 22:00 | /// | /// | 3 | 0 | 0 | 0 | 0 | 0 | |
| 上旬 | 1 | 1 | 01 | 1 | 01 17:00 | /// | /// | 1 | 0 | 0 | 0 | 0 | 0 | |
| 中旬 | 31 | 13 | 15 | 5 | 17 20:00 | /// | /// | 5 | 1 | 0 | 0 | 0 | 0 | |
| 下旬 | 75 | 20 | 26 | 10 | 26 03:00 | /// | /// | 7 | 4 | 0 | 0 | 0 | 0 | |
| 上旬 | 88 | 37 | 03 | 11 | 03 03:00 | /// | /// | 4 | 3 | 2 | 0 | 0 | 0 | |
| 中旬 | 78 | 48 | 13 | 25 | 13 22:00 | /// | /// | 3 | 2 | 1 | 0 | 0 | 0 | |
| 下旬 | 15 | 13 | 21 | 11 | 21 18:00 | /// | /// | 2 | 1 | 0 | 0 | 0 | 0 | |
| 上旬 | 6 | 4 | 08 | 2 | 08 12:00 | /// | /// | 3 | 0 | 0 | 0 | 0 | 0 | |
| 中旬 | 58 | 53 | 14 | 12 | 14 22:00 | /// | /// | 3 | 1 | 1 | 1 | 0 | 0 | |
| 下旬 | 168 | 71 | 28 | 25 | 28 05:00 | /// | /// | 3 | 3 | 3 | 2 | 1 | 0 | |
| 上旬 | 56 | 28 | 04 | 15 | 04 16:00 | /// | /// | 5 | 2 | 0 | 0 | 0 | 0 | |
| 中旬 | 39 | 19 | 19 | 4 | 19 23:00 | /// | /// | 3 | 2 | 0 | 0 | 0 | 0 | |
| 下旬 | 11 | 6 | 25 | 2 | 25 12:00 | /// | /// | 3 | 0 | 0 | 0 | 0 | 0 | |
| 上旬 | 41 | 17 | 08 | 5 | 09 09:00 | /// | /// | 5 | 2 | 0 | 0 | 0 | 0 | |
| 中旬 | 8 | 8 | 14 | 4 | 14 08:00 | /// | /// | 1 | 0 | 0 | 0 | 0 | 0 | |
| 下旬 | 45 | 36 | 22 | 11 | 22 22:00 | /// | /// | 2 | 1 | 1 | 0 | 0 | 0 | |
| 上旬 | 37 | 18 | 02 | 4 | 02 18:00 | /// | /// | 4 | 2 | 0 | 0 | 0 | 0 | |
| 中旬 | 0 | 0 | 20 | 0 | 20 --:-- | /// | /// | 0 | 0 | 0 | 0 | 0 | 0 | |
| 下旬 | 12 | 11 | 27 | 3 | 27 13:00 | /// | /// | 2 | 1 | 0 | 0 | 0 | 0 | |
| 上旬 | 0 | 0 | 10 | 0 | 10 --:-- | /// | /// | 0 | 0 | 0 | 0 | 0 | 0 | |
| 中旬 | 3 | 3 | 19 | 2 | 19 21:00 | /// | /// | 1 | 0 | 0 | 0 | 0 | 0 | |
| 下旬 | 0 | 0 | 31 | 0 | 31 --:-- | /// | /// | 0 | 0 | 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。