日ごとの値
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後志地方 1987年3月（日ごとの値） 降水量合計（mm）
| 日 | 美国 | 余市 | 小樽* | 共和 | 蘭越 | 倶知安* | 脇方台地 | 寿都* | 桂台 | 喜茂別 | 黒松内 | 真狩 | 赤井川 | 神恵内 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 10 | 9 | 5.5 | 3 | 0 | 3.5 | /// | 2.0 | /// | 2 | 3 | 3 | 12 | 3 |
| 2 | 3 | 5 | 5.0 | 3 | 3 | 6.0 | /// | 4.0 | /// | 1 | 5 | 2 | 6 | /// |
| 3 | 7 | 6 | 4.0 | 1 | 1 | 3.0 | /// | 1.0 | /// | 0 | 2 | 2 | 5 | /// |
| 4 | 1 | 0 | 1.0 | 1 | 1 | 3.0 | /// | 0.0 | /// | 2 | 0 | 3 | 2 | /// |
| 5 | 5 | 5 | 1.0 | 1 | 2 | 4.5 | /// | 0.5 | /// | 6 | 4 | 9 | 5 | /// |
| 6 | 4 | 2 | 1.5 | 1 | 0 | 5.0 | /// | 0.0 | /// | 2 | 1 | 5 | 4 | /// |
| 7 | 1 | 2 | 0.5 | 0 | 1 | 2.5 | /// | 0.0 | /// | 0 | 0 | 1 | 1 | /// |
| 8 | 1 | 0 | 0.0 | 0 | 0 | 0.0 | /// | 0.0 | /// | 1 | 0 | 0 | 0 | /// |
| 9 | 4 | 3 | 1.5 | 0 | 0 | 4.0 | /// | 0.0 | /// | 0 | 0 | 1 | 5 | /// |
| 10 | 5 | 3 | 2.5 | 1 | 0 | 4.0 | /// | 2.0 | /// | 1 | 2 | 1 | 7 | /// |
| 11 | 3 | 1 | 0.0 | 1 | 1 | 0.0 | /// | 1.5 | /// | 0 | 1 | 0 | 1 | /// |
| 12 | 1 | 0 | 1.0 | 1 | 0 | 1.0 | /// | 0.5 | /// | 0 | 1 | 0 | 0 | /// |
| 13 | 1 | 0 | -- | 0 | 0 | 0.0 | /// | 1.5 | /// | 0 | 0 | 0 | 0 | /// |
| 14 | 11 | 9 | 7.5 | 12 | 11 | 7.5 | /// | 10.5 | /// | 12 | 11 | 11 | 10 | /// |
| 15 | 1 | 2 | 1.5 | 0 | 0 | 0.5 | /// | 1.5 | /// | 2 | 0 | 2 | 4 | /// |
| 16 | 1 | 0 | 1.5 | 0 | 0 | 2.5 | /// | 0.0 | /// | 1 | 0 | 5 | 2 | /// |
| 17 | 0 | 1 | -- | 0 | 1 | 0.0 | /// | -- | /// | 0 | 0 | 0 | 0 | 0 |
| 18 | 0 | 0 | -- | 0 | 0 | -- | /// | 0.0 | /// | 0 | 0 | 0 | 0 | 0 |
| 19 | 0 | 0 | 0.0 | 0 | 0 | 0.0 | /// | 0.0 | /// | 0 | 0 | 0 | 0 | 0 |
| 20 | 0 | 0 | -- | 0 | 0 | -- | /// | -- | /// | 0 | 0 | 0 | 0 | 0 |
| 21 | 1 | 0 | 0.5 | 0 | 0 | 0.0 | /// | 0.0 | /// | 0 | 0 | 1 | 1 | 3 |
| 22 | 2 | 0 | 0.0 | 0 | 0 | 0.0 | /// | 0.0 | /// | 0 | 0 | 1 | 0 | 3 |
| 23 | 0 | 0 | -- | 0 | 0 | -- | /// | 0.0 | /// | 1 | 0 | 0 | 0 | 0 |
| 24 | 26 | 21 | 22.0 | 10 | 16 | 16.0 | /// | 16.0 | /// | 21 | 17 | 18 | 19 | 10 |
| 25 | 33 | 19 | 15.5 | 5 | 5 | 9.5 | /// | 4.5 | /// | 8 | 9 | 8 | 17 | 12 |
| 26 | 12 | 7 | 7.0 | 3 | 3 | 9.0 | /// | 2.0 | /// | 3 | 5 | 10 | 7 | 4 |
| 27 | 1 | 2 | 2.0 | 0 | 3 | 4.0 | /// | 1.0 | /// | 1 | 1 | 1 | 2 | 0 |
| 28 | 3 | 1 | 0.0 | 0 | 1 | 0.5 | /// | 1.0 | /// | 1 | 5 | 2 | 1 | 3 |
| 29 | 2 | 0 | 0.0 | 0 | 0 | 0.0 | /// | 0.0 | /// | 1 | 0 | 0 | 2 | 0 |
| 30 | 26 | 10 | 13.0 | 0 | 1 | 2.0 | /// | 1.5 | /// | 1 | 2 | 3 | 4 | 0 |
| 31 | 3 | 4 | 4.0 | 1 | 3 | 4.0 | /// | 2.0 | /// | 5 | 2 | 2 | 8 | 2 |
- 値欄の記号の説明
- アスタリスク(*)が付いた地点は地上気象観測地点(気象台・測候所・特別地域気象観測所等)です。
- アスタリスクの付いていない地点はアメダス地点です。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。