平年値（日ごとの値）
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八丈島 8月9時
| 要素 | 気温(℃) | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 指定気圧面 | 1000hPa | 925hPa | 900hPa | 850hPa | 800hPa | 700hPa | 600hPa | 500hPa | 400hPa | 350hPa | 300hPa | 250hPa | 200hPa | 175hPa | 150hPa | 125hPa | 100hPa | 70hPa | 50hPa | 40hPa | 30hPa | 20hPa | 15hPa | 10hPa | 5hPa |
| 統計期間 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 2001～ 2019 |
| 資料年数 | 24 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 29 | 29 | 24 | 4 |
| 1日 | /// | 21.8 | 20.9 | 18.7 | 16.2 | 10.5 | 3.5 | -4.6 | -14.8 | -21.5 | -29.7 | -39.8 | -51.6 | -58.0 | -64.1 | -69.2 | -71.4 | -66.8 | -60.3 | -57.2 | -53.4 | -48.6 | -45.4 | /// | /// |
| 2日 | /// | 21.8 | 20.9 | 18.7 | 16.2 | 10.6 | 3.5 | -4.6 | -14.8 | -21.5 | -29.7 | -39.8 | -51.6 | -58.0 | -64.1 | -69.2 | -71.4 | -66.8 | -60.3 | -57.2 | -53.4 | -48.6 | -45.4 | /// | /// |
| 3日 | /// | 21.9 | 20.9 | 18.7 | 16.2 | 10.6 | 3.6 | -4.5 | -14.8 | -21.5 | -29.6 | -39.8 | -51.6 | -58.0 | -64.1 | -69.2 | -71.4 | -66.8 | -60.3 | -57.2 | -53.4 | -48.6 | -45.4 | /// | /// |
| 4日 | /// | 21.9 | 20.9 | 18.8 | 16.3 | 10.6 | 3.6 | -4.5 | -14.7 | -21.4 | -29.6 | -39.8 | -51.6 | -58.0 | -64.1 | -69.2 | -71.4 | -66.9 | -60.3 | -57.3 | -53.4 | -48.6 | -45.4 | /// | /// |
| 5日 | /// | 21.9 | 21.0 | 18.8 | 16.3 | 10.6 | 3.6 | -4.5 | -14.7 | -21.4 | -29.6 | -39.7 | -51.6 | -58.0 | -64.2 | -69.2 | -71.4 | -66.9 | -60.3 | -57.3 | -53.4 | -48.6 | /// | /// | /// |
| 6日 | /// | 21.9 | 21.0 | 18.8 | 16.3 | 10.7 | 3.7 | -4.4 | -14.6 | -21.4 | -29.5 | -39.7 | -51.6 | -58.0 | -64.2 | -69.3 | -71.5 | -66.9 | -60.3 | -57.3 | -53.4 | -48.7 | /// | /// | /// |
| 7日 | /// | 22.0 | 21.0 | 18.8 | 16.4 | 10.7 | 3.7 | -4.3 | -14.6 | -21.3 | -29.5 | -39.6 | -51.5 | -58.0 | -64.2 | -69.3 | -71.5 | -66.9 | -60.3 | -57.3 | -53.4 | -48.7 | /// | /// | /// |
| 8日 | /// | 22.0 | 21.1 | 18.9 | 16.4 | 10.7 | 3.8 | -4.3 | -14.5 | -21.2 | -29.4 | -39.6 | -51.5 | -58.0 | -64.2 | -69.4 | -71.6 | -67.0 | -60.3 | -57.3 | -53.4 | -48.7 | /// | /// | /// |
| 9日 | /// | 22.0 | 21.1 | 18.9 | 16.4 | 10.8 | 3.8 | -4.2 | -14.5 | -21.2 | -29.4 | -39.5 | -51.5 | -58.0 | -64.2 | -69.5 | -71.7 | -67.0 | -60.4 | -57.3 | -53.3 | -48.7 | /// | /// | /// |
| 10日 | /// | 22.0 | 21.1 | 18.9 | 16.4 | 10.8 | 3.9 | -4.2 | -14.4 | -21.1 | -29.3 | -39.5 | -51.4 | -57.9 | -64.3 | -69.6 | -71.8 | -67.0 | -60.4 | -57.3 | -53.3 | -48.7 | /// | /// | /// |
| 11日 | /// | 22.1 | 21.2 | 18.9 | 16.5 | 10.8 | 3.9 | -4.1 | -14.4 | -21.1 | -29.3 | -39.4 | -51.4 | -57.9 | -64.3 | -69.6 | -71.9 | -67.1 | -60.4 | -57.3 | -53.3 | -48.7 | -45.9 | /// | /// |
| 12日 | /// | 22.1 | 21.2 | 18.9 | 16.5 | 10.8 | 4.0 | -4.1 | -14.4 | -21.1 | -29.3 | -39.4 | -51.4 | -57.9 | -64.3 | -69.7 | -72.0 | -67.1 | -60.4 | -57.3 | -53.3 | -48.7 | -45.9 | /// | /// |
| 13日 | /// | 22.1 | 21.2 | 18.9 | 16.5 | 10.9 | 4.0 | -4.1 | -14.4 | -21.0 | -29.3 | -39.4 | -51.3 | -57.9 | -64.3 | -69.7 | -72.1 | -67.2 | -60.5 | -57.3 | -53.3 | -48.7 | -45.9 | /// | /// |
| 14日 | /// | 22.1 | 21.2 | 18.9 | 16.5 | 10.9 | 4.0 | -4.1 | -14.4 | -21.0 | -29.3 | -39.4 | -51.3 | -57.9 | -64.2 | -69.8 | -72.2 | -67.2 | -60.5 | -57.3 | -53.4 | -48.8 | -45.9 | /// | /// |
| 15日 | /// | 22.1 | 21.1 | 18.9 | 16.4 | 10.8 | 4.0 | -4.1 | -14.4 | -21.1 | -29.3 | -39.4 | -51.3 | -57.9 | -64.2 | -69.8 | -72.3 | -67.2 | -60.5 | -57.3 | -53.4 | -48.8 | -45.9 | /// | /// |
| 16日 | /// | 22.1 | 21.1 | 18.8 | 16.4 | 10.8 | 4.0 | -4.1 | -14.5 | -21.1 | -29.4 | -39.5 | -51.3 | -57.9 | -64.1 | -69.7 | -72.4 | -67.2 | -60.5 | -57.4 | -53.5 | -48.8 | -46.0 | /// | /// |
| 17日 | /// | 22.0 | 21.1 | 18.8 | 16.3 | 10.8 | 3.9 | -4.2 | -14.5 | -21.2 | -29.4 | -39.5 | -51.3 | -57.9 | -64.1 | -69.7 | -72.4 | -67.3 | -60.5 | -57.4 | -53.5 | -48.8 | -46.0 | /// | /// |
| 18日 | /// | 22.0 | 21.0 | 18.7 | 16.3 | 10.7 | 3.9 | -4.2 | -14.6 | -21.2 | -29.5 | -39.6 | -51.4 | -57.9 | -64.0 | -69.6 | -72.4 | -67.3 | -60.5 | -57.4 | -53.6 | -48.8 | -46.1 | /// | /// |
| 19日 | /// | 22.0 | 21.0 | 18.7 | 16.2 | 10.7 | 3.8 | -4.3 | -14.7 | -21.3 | -29.6 | -39.7 | -51.4 | -57.9 | -64.0 | -69.6 | -72.4 | -67.3 | -60.5 | -57.4 | -53.6 | -48.9 | -46.1 | /// | /// |
| 20日 | /// | 21.9 | 20.9 | 18.6 | 16.2 | 10.6 | 3.8 | -4.4 | -14.8 | -21.4 | -29.7 | -39.7 | -51.4 | -57.9 | -63.9 | -69.5 | -72.4 | -67.2 | -60.5 | -57.4 | -53.7 | -48.9 | -46.1 | /// | /// |
| 21日 | /// | 21.9 | 20.8 | 18.6 | 16.1 | 10.5 | 3.7 | -4.4 | -14.8 | -21.5 | -29.7 | -39.8 | -51.5 | -57.9 | -63.9 | -69.5 | -72.4 | -67.2 | -60.5 | -57.5 | -53.7 | -48.9 | -46.1 | /// | /// |
| 22日 | /// | 21.8 | 20.8 | 18.5 | 16.0 | 10.5 | 3.6 | -4.5 | -14.9 | -21.5 | -29.8 | -39.9 | -51.5 | -57.9 | -63.9 | -69.4 | -72.4 | -67.2 | -60.6 | -57.5 | -53.7 | -48.9 | -46.2 | /// | /// |
| 23日 | /// | 21.8 | 20.7 | 18.5 | 16.0 | 10.4 | 3.6 | -4.6 | -14.9 | -21.6 | -29.9 | -39.9 | -51.5 | -57.9 | -63.9 | -69.4 | -72.4 | -67.2 | -60.6 | -57.5 | -53.8 | -49.0 | -46.2 | /// | /// |
| 24日 | /// | 21.7 | 20.7 | 18.4 | 16.0 | 10.4 | 3.5 | -4.6 | -15.0 | -21.6 | -29.9 | -39.9 | -51.5 | -57.9 | -63.9 | -69.4 | -72.5 | -67.2 | -60.6 | -57.5 | -53.8 | -49.0 | -46.2 | /// | /// |
| 25日 | /// | 21.7 | 20.6 | 18.4 | 15.9 | 10.3 | 3.5 | -4.6 | -15.0 | -21.7 | -29.9 | -40.0 | -51.6 | -57.9 | -63.9 | -69.4 | -72.5 | -67.2 | -60.6 | -57.6 | -53.8 | -49.0 | -46.2 | /// | /// |
| 26日 | /// | 21.7 | 20.6 | 18.4 | 15.9 | 10.3 | 3.4 | -4.7 | -15.0 | -21.7 | -30.0 | -40.0 | -51.6 | -57.9 | -63.9 | -69.4 | -72.5 | -67.2 | -60.7 | -57.6 | -53.8 | -49.0 | -46.3 | /// | /// |
| 27日 | /// | 21.6 | 20.6 | 18.3 | 15.9 | 10.3 | 3.4 | -4.7 | -15.0 | -21.7 | -30.0 | -40.0 | -51.6 | -57.9 | -63.9 | -69.4 | -72.6 | -67.2 | -60.7 | -57.6 | -53.8 | -49.1 | -46.3 | /// | /// |
| 28日 | /// | 21.6 | 20.5 | 18.3 | 15.8 | 10.2 | 3.4 | -4.7 | -15.0 | -21.7 | -30.0 | -40.0 | -51.6 | -57.9 | -64.0 | -69.5 | -72.6 | -67.3 | -60.8 | -57.6 | -53.8 | -49.1 | -46.3 | /// | /// |
| 29日 | /// | 21.6 | 20.5 | 18.3 | 15.8 | 10.2 | 3.4 | -4.7 | -15.0 | -21.7 | -30.0 | -40.0 | -51.6 | -57.9 | -64.0 | -69.5 | -72.7 | -67.3 | -60.8 | -57.7 | -53.8 | -49.1 | -46.3 | /// | /// |
| 30日 | /// | 21.5 | 20.5 | 18.2 | 15.8 | 10.2 | 3.4 | -4.7 | -15.0 | -21.7 | -30.0 | -40.0 | -51.6 | -57.9 | -64.0 | -69.5 | -72.7 | -67.3 | -60.9 | -57.7 | -53.8 | -49.1 | -46.3 | /// | /// |
| 31日 | /// | 21.5 | 20.4 | 18.2 | 15.7 | 10.1 | 3.4 | -4.7 | -15.0 | -21.8 | -30.0 | -40.0 | -51.6 | -57.9 | -64.0 | -69.6 | -72.7 | -67.4 | -60.9 | -57.7 | -53.9 | -49.2 | -46.4 | /// | /// |