平年値（日ごとの値）
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成田（千葉県) 9月 平年値（日ごとの値） 詳細（気温）
| 要素 | 気温 | ||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 平均 (℃) | 最高 (℃) | 最低 (℃) | 1時間毎の気温 | ||||||||||||||||||||||||
| 01時 | 02時 | 03時 | 04時 | 05時 | 06時 | 07時 | 08時 | 09時 | 10時 | 11時 | 12時 | 13時 | 14時 | 15時 | 16時 | 17時 | 18時 | 19時 | 20時 | 21時 | 22時 | 23時 | 24時 | ||||
| 統計期間 | 2003～ 2020 | 2003～ 2020 | 2003～ 2020 | 2003～ 2020 | 2003～ 2020 | 2003～ 2020 | 2003～ 2020 | 2003～ 2020 | 2003～ 2020 | 2003～ 2020 | 2003～ 2020 | 2003～ 2020 | 2003～ 2020 | 2003～ 2020 | 2003～ 2020 | 2003～ 2020 | 2003～ 2020 | 2003～ 2020 | 2003～ 2020 | 2003～ 2020 | 2003～ 2020 | 2003～ 2020 | 2003～ 2020 | 2003～ 2020 | 2003～ 2020 | 2003～ 2020 | 2003～ 2020 |
| 資料年数 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 |
| 1日 | 24.8 | 29.3 | 21.4 | 22.9 | 22.7 | 22.6 | 22.5 | 22.3 | 22.7 | 23.8 | 25.0 | 26.0 | 26.7 | 27.4 | 27.8 | 28.0 | 27.9 | 27.6 | 27.0 | 26.2 | 25.1 | 24.4 | 24.0 | 23.7 | 23.5 | 23.2 | 23.0 |
| 2日 | 24.8 | 29.2 | 21.4 | 22.8 | 22.7 | 22.5 | 22.4 | 22.3 | 22.7 | 23.8 | 24.9 | 25.9 | 26.7 | 27.3 | 27.7 | 27.9 | 27.8 | 27.6 | 27.0 | 26.1 | 25.0 | 24.4 | 23.9 | 23.6 | 23.4 | 23.2 | 22.9 |
| 3日 | 24.7 | 29.2 | 21.4 | 22.8 | 22.6 | 22.5 | 22.4 | 22.3 | 22.6 | 23.7 | 24.9 | 25.9 | 26.6 | 27.3 | 27.7 | 27.9 | 27.8 | 27.5 | 26.9 | 26.1 | 25.0 | 24.3 | 23.9 | 23.6 | 23.4 | 23.1 | 22.9 |
| 4日 | 24.7 | 29.1 | 21.3 | 22.7 | 22.6 | 22.5 | 22.4 | 22.2 | 22.6 | 23.7 | 24.8 | 25.8 | 26.6 | 27.2 | 27.6 | 27.8 | 27.7 | 27.5 | 26.8 | 26.0 | 24.9 | 24.3 | 23.9 | 23.6 | 23.4 | 23.1 | 22.8 |
| 5日 | 24.6 | 29.1 | 21.2 | 22.7 | 22.5 | 22.4 | 22.3 | 22.1 | 22.5 | 23.6 | 24.7 | 25.8 | 26.6 | 27.2 | 27.6 | 27.8 | 27.7 | 27.4 | 26.8 | 25.9 | 24.8 | 24.2 | 23.8 | 23.5 | 23.3 | 23.0 | 22.8 |
| 6日 | 24.6 | 29.0 | 21.2 | 22.6 | 22.5 | 22.3 | 22.2 | 22.1 | 22.4 | 23.5 | 24.7 | 25.7 | 26.5 | 27.1 | 27.5 | 27.7 | 27.6 | 27.4 | 26.7 | 25.8 | 24.8 | 24.1 | 23.7 | 23.4 | 23.2 | 22.9 | 22.7 |
| 7日 | 24.5 | 28.9 | 21.1 | 22.5 | 22.4 | 22.2 | 22.1 | 22.0 | 22.3 | 23.4 | 24.6 | 25.6 | 26.4 | 27.0 | 27.4 | 27.6 | 27.5 | 27.3 | 26.6 | 25.7 | 24.7 | 24.1 | 23.6 | 23.4 | 23.2 | 22.9 | 22.6 |
| 8日 | 24.4 | 28.8 | 21.0 | 22.4 | 22.3 | 22.1 | 22.0 | 21.9 | 22.2 | 23.3 | 24.5 | 25.5 | 26.4 | 26.9 | 27.4 | 27.5 | 27.4 | 27.2 | 26.5 | 25.6 | 24.5 | 23.9 | 23.5 | 23.2 | 23.0 | 22.7 | 22.5 |
| 9日 | 24.2 | 28.7 | 20.8 | 22.3 | 22.1 | 22.0 | 21.9 | 21.8 | 22.1 | 23.2 | 24.3 | 25.4 | 26.3 | 26.8 | 27.2 | 27.4 | 27.3 | 27.0 | 26.4 | 25.5 | 24.4 | 23.8 | 23.4 | 23.1 | 22.9 | 22.6 | 22.4 |
| 10日 | 24.1 | 28.5 | 20.7 | 22.2 | 22.0 | 21.9 | 21.8 | 21.6 | 21.9 | 23.0 | 24.2 | 25.3 | 26.1 | 26.7 | 27.1 | 27.2 | 27.2 | 26.9 | 26.2 | 25.3 | 24.3 | 23.7 | 23.3 | 23.0 | 22.8 | 22.4 | 22.2 |
| 11日 | 23.9 | 28.4 | 20.5 | 22.0 | 21.9 | 21.7 | 21.6 | 21.5 | 21.7 | 22.9 | 24.1 | 25.1 | 26.0 | 26.5 | 26.9 | 27.1 | 27.0 | 26.7 | 26.1 | 25.2 | 24.1 | 23.5 | 23.1 | 22.8 | 22.6 | 22.3 | 22.0 |
| 12日 | 23.8 | 28.2 | 20.3 | 21.9 | 21.7 | 21.5 | 21.4 | 21.3 | 21.6 | 22.7 | 23.9 | 25.0 | 25.8 | 26.4 | 26.8 | 26.9 | 26.9 | 26.5 | 25.9 | 25.0 | 23.9 | 23.4 | 23.0 | 22.6 | 22.4 | 22.1 | 21.9 |
| 13日 | 23.6 | 28.0 | 20.1 | 21.7 | 21.5 | 21.4 | 21.2 | 21.1 | 21.4 | 22.5 | 23.7 | 24.8 | 25.7 | 26.2 | 26.6 | 26.7 | 26.7 | 26.3 | 25.7 | 24.8 | 23.7 | 23.2 | 22.8 | 22.5 | 22.2 | 21.9 | 21.7 |
| 14日 | 23.4 | 27.7 | 19.9 | 21.5 | 21.3 | 21.2 | 21.1 | 20.9 | 21.2 | 22.3 | 23.5 | 24.6 | 25.5 | 26.0 | 26.4 | 26.5 | 26.5 | 26.1 | 25.5 | 24.6 | 23.5 | 23.0 | 22.6 | 22.3 | 22.1 | 21.7 | 21.5 |
| 15日 | 23.2 | 27.5 | 19.7 | 21.3 | 21.1 | 21.0 | 20.9 | 20.7 | 21.0 | 22.1 | 23.4 | 24.4 | 25.3 | 25.8 | 26.2 | 26.3 | 26.2 | 25.9 | 25.2 | 24.3 | 23.3 | 22.8 | 22.4 | 22.1 | 21.9 | 21.5 | 21.3 |
| 16日 | 23.0 | 27.3 | 19.4 | 21.1 | 20.9 | 20.8 | 20.7 | 20.5 | 20.8 | 21.9 | 23.1 | 24.2 | 25.1 | 25.6 | 25.9 | 26.0 | 26.0 | 25.6 | 25.0 | 24.1 | 23.1 | 22.6 | 22.2 | 21.9 | 21.7 | 21.3 | 21.1 |
| 17日 | 22.7 | 27.0 | 19.2 | 20.9 | 20.7 | 20.6 | 20.4 | 20.3 | 20.6 | 21.7 | 22.9 | 24.0 | 24.9 | 25.3 | 25.7 | 25.8 | 25.7 | 25.4 | 24.7 | 23.8 | 22.9 | 22.4 | 22.0 | 21.7 | 21.4 | 21.1 | 20.9 |
| 18日 | 22.5 | 26.7 | 19.0 | 20.7 | 20.5 | 20.4 | 20.2 | 20.1 | 20.3 | 21.4 | 22.7 | 23.8 | 24.6 | 25.1 | 25.5 | 25.5 | 25.4 | 25.1 | 24.5 | 23.6 | 22.6 | 22.2 | 21.8 | 21.5 | 21.2 | 20.9 | 20.7 |
| 19日 | 22.3 | 26.5 | 18.7 | 20.5 | 20.3 | 20.1 | 20.0 | 19.9 | 20.1 | 21.2 | 22.5 | 23.5 | 24.4 | 24.9 | 25.2 | 25.3 | 25.2 | 24.8 | 24.2 | 23.3 | 22.4 | 22.0 | 21.6 | 21.3 | 21.0 | 20.7 | 20.4 |
| 20日 | 22.0 | 26.2 | 18.5 | 20.3 | 20.1 | 19.9 | 19.8 | 19.7 | 19.9 | 21.0 | 22.2 | 23.3 | 24.1 | 24.6 | 24.9 | 25.0 | 24.9 | 24.5 | 23.9 | 23.0 | 22.1 | 21.8 | 21.3 | 21.0 | 20.8 | 20.5 | 20.2 |
| 21日 | 21.8 | 25.9 | 18.2 | 20.1 | 19.9 | 19.7 | 19.6 | 19.5 | 19.7 | 20.7 | 22.0 | 23.0 | 23.9 | 24.3 | 24.7 | 24.7 | 24.6 | 24.2 | 23.6 | 22.7 | 21.9 | 21.5 | 21.1 | 20.8 | 20.6 | 20.3 | 20.0 |
| 22日 | 21.6 | 25.7 | 18.0 | 19.9 | 19.7 | 19.5 | 19.4 | 19.3 | 19.4 | 20.5 | 21.7 | 22.8 | 23.6 | 24.1 | 24.4 | 24.4 | 24.3 | 24.0 | 23.4 | 22.5 | 21.6 | 21.3 | 20.9 | 20.6 | 20.4 | 20.1 | 19.8 |
| 23日 | 21.3 | 25.4 | 17.7 | 19.6 | 19.5 | 19.3 | 19.1 | 19.0 | 19.2 | 20.3 | 21.5 | 22.5 | 23.4 | 23.8 | 24.1 | 24.2 | 24.1 | 23.7 | 23.1 | 22.2 | 21.4 | 21.1 | 20.7 | 20.4 | 20.2 | 19.9 | 19.6 |
| 24日 | 21.1 | 25.2 | 17.5 | 19.4 | 19.3 | 19.1 | 18.9 | 18.8 | 19.0 | 20.0 | 21.2 | 22.3 | 23.1 | 23.6 | 23.9 | 23.9 | 23.8 | 23.5 | 22.9 | 22.0 | 21.2 | 20.8 | 20.4 | 20.2 | 20.0 | 19.7 | 19.4 |
| 25日 | 20.9 | 24.9 | 17.3 | 19.2 | 19.1 | 18.9 | 18.7 | 18.6 | 18.7 | 19.8 | 21.0 | 22.1 | 22.9 | 23.3 | 23.7 | 23.7 | 23.6 | 23.3 | 22.7 | 21.8 | 21.0 | 20.6 | 20.2 | 20.0 | 19.8 | 19.5 | 19.2 |
| 26日 | 20.7 | 24.7 | 17.1 | 19.1 | 18.9 | 18.7 | 18.5 | 18.4 | 18.5 | 19.6 | 20.8 | 21.8 | 22.7 | 23.1 | 23.4 | 23.5 | 23.4 | 23.1 | 22.5 | 21.6 | 20.8 | 20.5 | 20.1 | 19.8 | 19.6 | 19.3 | 19.0 |
| 27日 | 20.5 | 24.5 | 16.9 | 18.9 | 18.7 | 18.5 | 18.3 | 18.2 | 18.3 | 19.4 | 20.6 | 21.6 | 22.5 | 22.9 | 23.2 | 23.3 | 23.2 | 22.9 | 22.3 | 21.4 | 20.6 | 20.3 | 19.9 | 19.6 | 19.5 | 19.2 | 18.9 |
| 28日 | 20.4 | 24.4 | 16.7 | 18.7 | 18.5 | 18.4 | 18.2 | 18.1 | 18.1 | 19.2 | 20.4 | 21.5 | 22.3 | 22.8 | 23.1 | 23.1 | 23.1 | 22.7 | 22.2 | 21.2 | 20.5 | 20.1 | 19.7 | 19.5 | 19.3 | 19.0 | 18.7 |
| 29日 | 20.2 | 24.2 | 16.5 | 18.6 | 18.4 | 18.2 | 18.0 | 17.9 | 18.0 | 19.0 | 20.2 | 21.3 | 22.1 | 22.6 | 22.9 | 23.0 | 22.9 | 22.6 | 22.0 | 21.1 | 20.3 | 20.0 | 19.6 | 19.4 | 19.2 | 18.9 | 18.6 |
| 30日 | 20.1 | 24.1 | 16.4 | 18.4 | 18.3 | 18.1 | 17.9 | 17.8 | 17.8 | 18.9 | 20.1 | 21.1 | 22.0 | 22.5 | 22.8 | 22.9 | 22.8 | 22.5 | 21.9 | 21.0 | 20.2 | 19.9 | 19.5 | 19.2 | 19.1 | 18.8 | 18.5 |