旬ごとの値
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初山別（留萌地方) 1979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 | 26 | 11 | 10 | 2 | 10 18:00 | /// | /// | 7 | 1 | 0 | 0 | 0 | 0 | |
| 中旬 | 20 | 7 | 13 | 1 | 20 18:00 | /// | /// | 7 | 0 | 0 | 0 | 0 | 0 | |
| 下旬 | 37 | 13 | 28 | 3 | 22 03:00 | /// | /// | 9 | 1 | 0 | 0 | 0 | 0 | |
| 上旬 | 35 | 9 | 06 | 3 | 04 02:00 | /// | /// | 9 | 0 | 0 | 0 | 0 | 0 | |
| 中旬 | 12 | 6 | 19 | 2 | 19 11:00 | /// | /// | 3 | 0 | 0 | 0 | 0 | 0 | |
| 下旬 | 14 | 14 | 21 | 3 | 21 14:00 | /// | /// | 1 | 1 | 0 | 0 | 0 | 0 | |
| 上旬 | 1 | 1 | 09 | 1 | 09 22:00 | /// | /// | 1 | 0 | 0 | 0 | 0 | 0 | |
| 中旬 | 28 | 15 | 20 | 3 | 20 05:00 | /// | /// | 6 | 1 | 0 | 0 | 0 | 0 | |
| 下旬 | 41 | 27 | 31 | 7 | 31 02:00 | /// | /// | 9 | 1 | 0 | 0 | 0 | 0 | |
| 上旬 | 10 | 9 | 09 | 2 | 09 05:00 | /// | /// | 2 | 0 | 0 | 0 | 0 | 0 | |
| 中旬 | 0 | 0 | 20 | 0 | 20 --:-- | /// | /// | 0 | 0 | 0 | 0 | 0 | 0 | |
| 下旬 | 10 | 4 | 24 | 1 | 25 19:00 | /// | /// | 4 | 0 | 0 | 0 | 0 | 0 | |
| 上旬 | 15 | 10 | 07 | 2 | 07 05:00 | /// | /// | 6 | 1 | 0 | 0 | 0 | 0 | |
| 中旬 | 10 | 5 | 11 | 1 | 17 02:00 | /// | /// | 4 | 0 | 0 | 0 | 0 | 0 | |
| 下旬 | 7 | 4 | 29 | 1 | 29 15:00 | /// | /// | 4 | 0 | 0 | 0 | 0 | 0 | |
| 上旬 | 8 | 6 | 09 | 4 | 09 13:00 | /// | /// | 2 | 0 | 0 | 0 | 0 | 0 | |
| 中旬 | 43 | 38 | 11 | 7 | 11 17:00 | /// | /// | 3 | 1 | 1 | 0 | 0 | 0 | |
| 下旬 | 63 | 39 | 27 | 6 | 27 12:00 | /// | /// | 6 | 2 | 1 | 0 | 0 | 0 | |
| 上旬 | 36 | 30 | 02 | 8 | 02 18:00 | /// | /// | 3 | 1 | 1 | 0 | 0 | 0 | |
| 中旬 | 0 | 0 | 20 | 0 | 20 --:-- | /// | /// | 0 | 0 | 0 | 0 | 0 | 0 | |
| 下旬 | 48 | 24 | 30 | 6 | 30 19:00 | /// | /// | 2 | 2 | 0 | 0 | 0 | 0 | |
| 上旬 | 0 | 0 | 10 | 0 | 10 --:-- | /// | /// | 0 | 0 | 0 | 0 | 0 | 0 | |
| 中旬 | 0 | 0 | 20 | 0 | 20 --:-- | /// | /// | 0 | 0 | 0 | 0 | 0 | 0 | |
| 下旬 | 0 ) | 0 ) | 31 | 0 ) | 31 --:-- | /// | /// | 0 ) | 0 ) | 0 ) | 0 ) | 0 ) | 0 ) | |
| 上旬 | 1 ] | 1 ] | 02 | 1 ] | 02 22:00 | /// | /// | 1 ] | 0 ] | 0 ] | 0 ] | 0 ] | 0 ] | |
| 中旬 | 65 | 46 | 14 | 28 | 14 16:00 | /// | /// | 4 | 2 | 1 | 0 | 0 | 0 | |
| 下旬 | 44 | 37 | 22 | 7 ) | 22 18:00 | /// | /// | 3 | 1 | 1 | 0 | 0 | 0 | |
| 上旬 | 42 | 21 | 01 | 6 | 04 04:00 | /// | /// | 4 | 2 | 0 | 0 | 0 | 0 | |
| 中旬 | 66 | 29 | 19 | 8 | 20 03:00 | /// | /// | 4 | 2 | 0 | 0 | 0 | 0 | |
| 下旬 | 45 | 17 | 30 | 7 | 21 12:00 | /// | /// | 7 | 2 | 0 | 0 | 0 | 0 | |
| 上旬 | 39 | 21 | 05 | 4 | 05 16:00 | /// | /// | 5 | 2 | 0 | 0 | 0 | 0 | |
| 中旬 | 21 | 9 | 11 | 2 | 19 24:00 | /// | /// | 6 | 0 | 0 | 0 | 0 | 0 | |
| 下旬 | 53 | 13 | 23 | 4 | 25 14:00 | /// | /// | 6 | 4 | 0 | 0 | 0 | 0 | |
| 上旬 | 14 | 5 | 08 | 1 | 09 16:00 | /// | /// | 7 | 0 | 0 | 0 | 0 | 0 | |
| 中旬 | 22 | 10 | 11 | 2 | 11 24:00 | /// | /// | 8 | 1 | 0 | 0 | 0 | 0 | |
| 下旬 | 30 | 19 | 31 | 3 | 31 10:00 | /// | /// | 8 | 1 | 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。