日ごとの値
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胆振地方 2018年5月（日ごとの値） 最高気温（℃）
| 日 | 厚真 | 穂別 | 森野 | 苫小牧* | 大岸 | 白老 | 鵡川 | 伊達 | 登別 | 室蘭* | 大滝 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 19.0 | 20.5 | 19.3 | 20.7 | 21.3 | 18.1 | 19.5 | 19.2 | 17.1 | 19.4 | 18.6 |
| 2 | 14.7 | 17.2 | 14.5 | 13.0 | 12.2 | 12.3 | 12.9 | 15.1 | 11.7 | 12.1 | 13.5 |
| 3 | 13.1 | 11.7 | 10.8 | 11.2 | 13.0 | 11.2 | 15.3 | 14.5 | 9.5 | 10.0 | 11.3 |
| 4 | 12.8 | 12.7 | 12.9 | 10.7 | 13.6 | 10.3 | 11.3 | 13.5 | 12.5 | 13.8 | 11.3 |
| 5 | 12.6 | 12.5 | 9.8 | 12.5 | 11.8 | 12.0 | 10.6 | 10.1 | 9.6 | 11.1 | 8.2 |
| 6 | 11.5 | 11.7 | 8.7 | 8.5 | 9.1 | 7.9 | 11.0 | 8.7 | 8.2 | 7.9 | 8.3 |
| 7 | 16.2 | 18.2 | 16.5 | 15.8 | 15.0 | 13.2 | 16.6 | 14.1 | 14.5 | 14.4 | 16.2 |
| 8 | 12.7 | 14.2 | 11.2 | 10.6 | 12.7 | 10.4 ) | 9.8 | 11.8 | 7.3 | 11.0 | 12.6 |
| 9 | 8.8 | 8.1 | 6.2 ) | 9.3 | 11.1 | 8.8 | 8.1 | 10.6 | 7.1 ) | 8.9 | 10.7 |
| 10 | 12.6 | 13.8 | 11.8 | 10.0 | 11.4 | 10.6 | 10.0 | 9.9 | 12.2 | 11.4 | 12.2 |
| 11 | 18.5 | 17.8 | 18.8 | 19.9 | 16.3 | 19.4 | 14.0 | 14.3 | 13.7 | 15.5 | 14.3 |
| 12 | 23.5 | 23.9 | 23.9 | 18.2 | 18.8 | 22.1 | 19.0 | 19.1 | 22.6 | 20.4 | 22.1 |
| 13 | 15.8 | 15.6 | 13.5 | 12.9 | 14.3 | 13.2 | 15.7 | 16.3 | 15.9 | 15.2 | 12.8 |
| 14 | 18.1 | 20.2 | 20.2 | 19.3 | 21.5 | 16.0 | 19.2 | 18.2 | 19.4 | 19.4 | 18.5 |
| 15 | 20.7 | 21.7 | 19.3 | 12.6 | 19.9 | 13.4 | 18.7 | 20.3 | 22.0 | 20.5 | 21.4 |
| 16 | 23.7 | 23.2 | 21.4 | 17.1 | 22.0 | 16.3 | 21.6 | 23.2 | 22.6 | 19.9 | 22.9 |
| 17 | 16.9 | 18.6 | 21.0 | 20.4 | 20.4 | 18.7 | 17.7 | 21.5 | 19.0 | 19.0 | 16.9 |
| 18 | 10.7 | 11.9 | 12.1 | 11.7 | 12.5 | 11.5 | 10.4 | 13.2 | 10.1 | 11.6 | 10.5 |
| 19 | 12.1 | 11.7 | 10.7 | 11.5 | 10.8 | 12.4 | 11.8 | 10.8 | 10.3 | 10.5 | 8.5 |
| 20 | 19.6 | 19.8 | 19.1 | 20.2 | 20.1 | 21.4 | 19.3 | 18.9 | 19.9 | 18.0 | 16.9 |
| 21 | 22.0 | 24.9 | 25.2 | 16.7 | 24.9 | 21.3 | 17.9 | 22.1 | 25.0 | 23.3 | 23.4 |
| 22 | 24.4 | 24.9 | 25.2 | 20.2 | 23.1 | 24.6 | 19.6 | 22.2 | 24.3 | 23.1 | 23.6 |
| 23 | 23.3 | 25.2 | 19.8 | 15.2 | 15.9 | 17.1 | 20.5 | 15.4 | 19.3 | 16.2 | 22.5 ) |
| 24 | 20.8 | 21.6 | 20.3 | 20.3 | 21.2 | 16.1 | 21.3 | 18.7 | 19.8 | 20.5 | 20.1 |
| 25 | 16.3 | 16.1 | 16.8 | 15.3 | 20.2 | 17.2 | 16.3 ) | 18.4 | 18.7 | 18.7 | 16.0 |
| 26 | 17.6 | 18.1 | 17.5 | 16.3 | 18.5 | 15.5 | 16.6 | 16.8 | 18.8 | 19.0 | 17.5 |
| 27 | 19.6 | 20.9 | 17.9 | 16.9 | 16.3 | 14.6 | 18.8 | 15.3 | 16.9 | 15.2 | 18.0 |
| 28 | 17.9 | 18.5 | 15.9 | 12.6 | 14.6 | 13.0 | 15.1 | 13.8 | 16.4 | 13.9 | 16.9 |
| 29 | 21.0 | 23.2 | 19.8 | 12.4 | 17.0 | 12.1 | 15.6 | 16.6 | 16.8 | 16.0 | 23.2 |
| 30 | 22.2 | 26.2 | 21.9 | 18.7 | 17.1 | 15.9 | 19.1 | 15.1 | 21.0 | 18.0 | 25.7 |
| 31 | 17.3 | 17.3 | 15.1 | 15.0 | 18.4 | 16.1 | 16.8 | 18.1 | 16.8 | 19.1 | 21.1 |
- 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。