平年値（日ごとの値）
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八丈島 7月21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 | 1993～ 2020 |
| 資料年数 | 21 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 28 | 24 | 3 |
| 1日 | /// | 20.5 | 20.0 | 18.1 | 15.7 | 9.7 | 2.7 | -5.0 | -15.0 | -21.5 | -29.4 | -39.5 | -51.8 | -58.7 | -65.3 | -70.0 | -71.6 | -66.4 | -59.9 | -56.7 | -53.3 | /// | /// | /// | /// |
| 2日 | /// | 20.6 | 20.1 | 18.3 | 15.8 | 9.8 | 2.7 | -5.0 | -15.0 | -21.5 | -29.4 | -39.4 | -51.8 | -58.7 | -65.3 | -70.0 | -71.6 | -66.3 | -59.9 | -56.7 | -53.2 | /// | /// | /// | /// |
| 3日 | /// | 20.7 | 20.2 | 18.4 | 15.8 | 9.8 | 2.7 | -5.0 | -15.0 | -21.5 | -29.4 | -39.4 | -51.8 | -58.6 | -65.2 | -70.0 | -71.5 | -66.3 | -59.9 | -56.7 | -53.2 | /// | /// | /// | /// |
| 4日 | /// | 20.8 | 20.3 | 18.5 | 15.9 | 9.9 | 2.8 | -5.0 | -15.0 | -21.5 | -29.4 | -39.4 | -51.7 | -58.6 | -65.2 | -70.0 | -71.5 | -66.3 | -59.9 | -56.7 | -53.2 | /// | /// | /// | /// |
| 5日 | /// | 20.9 | 20.4 | 18.5 | 16.0 | 9.9 | 2.8 | -4.9 | -15.0 | -21.5 | -29.4 | -39.4 | -51.7 | -58.6 | -65.2 | -70.0 | -71.4 | -66.2 | -59.9 | -56.6 | -53.2 | /// | /// | /// | /// |
| 6日 | /// | 21.0 | 20.5 | 18.6 | 16.1 | 10.0 | 2.8 | -4.9 | -15.0 | -21.4 | -29.4 | -39.4 | -51.7 | -58.5 | -65.1 | -70.0 | -71.4 | -66.2 | -59.8 | -56.6 | -53.1 | /// | /// | /// | /// |
| 7日 | /// | 21.1 | 20.6 | 18.7 | 16.1 | 10.0 | 2.9 | -4.9 | -14.9 | -21.4 | -29.3 | -39.4 | -51.7 | -58.5 | -65.1 | -70.0 | -71.4 | -66.2 | -59.8 | -56.6 | -53.1 | /// | /// | /// | /// |
| 8日 | /// | 21.2 | 20.6 | 18.8 | 16.2 | 10.1 | 2.9 | -4.8 | -14.9 | -21.4 | -29.3 | -39.4 | -51.6 | -58.4 | -65.1 | -70.0 | -71.4 | -66.1 | -59.8 | -56.6 | -53.1 | /// | /// | /// | /// |
| 9日 | /// | 21.2 | 20.7 | 18.8 | 16.2 | 10.1 | 3.0 | -4.8 | -14.9 | -21.4 | -29.3 | -39.4 | -51.6 | -58.4 | -65.1 | -70.0 | -71.3 | -66.1 | -59.8 | -56.6 | -53.1 | -48.4 | /// | /// | /// |
| 10日 | /// | 21.3 | 20.8 | 18.9 | 16.3 | 10.2 | 3.0 | -4.8 | -14.9 | -21.3 | -29.3 | -39.3 | -51.6 | -58.4 | -65.0 | -70.0 | -71.3 | -66.1 | -59.8 | -56.6 | -53.1 | -48.4 | /// | /// | /// |
| 11日 | /// | 21.4 | 20.9 | 19.0 | 16.3 | 10.3 | 3.1 | -4.7 | -14.8 | -21.3 | -29.3 | -39.3 | -51.6 | -58.3 | -65.0 | -70.0 | -71.3 | -66.0 | -59.8 | -56.6 | -53.1 | -48.4 | /// | /// | /// |
| 12日 | /// | 21.5 | 20.9 | 19.0 | 16.4 | 10.3 | 3.1 | -4.7 | -14.8 | -21.3 | -29.3 | -39.3 | -51.6 | -58.3 | -65.0 | -70.0 | -71.3 | -66.0 | -59.8 | -56.6 | -53.1 | -48.4 | /// | /// | /// |
| 13日 | /// | 21.6 | 21.0 | 19.1 | 16.4 | 10.4 | 3.2 | -4.6 | -14.8 | -21.3 | -29.3 | -39.3 | -51.6 | -58.3 | -65.0 | -69.9 | -71.2 | -66.0 | -59.8 | -56.6 | -53.1 | -48.4 | /// | /// | /// |
| 14日 | /// | 21.7 | 21.1 | 19.1 | 16.4 | 10.4 | 3.2 | -4.6 | -14.8 | -21.2 | -29.3 | -39.3 | -51.6 | -58.3 | -64.9 | -69.9 | -71.2 | -65.9 | -59.8 | -56.6 | -53.1 | -48.5 | /// | /// | /// |
| 15日 | /// | 21.7 | 21.1 | 19.1 | 16.5 | 10.5 | 3.3 | -4.6 | -14.8 | -21.2 | -29.3 | -39.4 | -51.6 | -58.3 | -64.9 | -69.9 | -71.2 | -65.9 | -59.8 | -56.7 | -53.1 | -48.5 | /// | /// | /// |
| 16日 | /// | 21.8 | 21.2 | 19.1 | 16.5 | 10.5 | 3.3 | -4.5 | -14.8 | -21.2 | -29.3 | -39.4 | -51.6 | -58.3 | -64.9 | -69.8 | -71.1 | -65.9 | -59.8 | -56.7 | -53.2 | -48.5 | /// | /// | /// |
| 17日 | /// | 21.8 | 21.2 | 19.1 | 16.5 | 10.5 | 3.3 | -4.5 | -14.8 | -21.2 | -29.3 | -39.4 | -51.5 | -58.3 | -64.8 | -69.8 | -71.1 | -65.8 | -59.8 | -56.7 | -53.2 | -48.6 | /// | /// | /// |
| 18日 | /// | 21.9 | 21.2 | 19.2 | 16.5 | 10.5 | 3.4 | -4.5 | -14.7 | -21.2 | -29.3 | -39.4 | -51.5 | -58.2 | -64.8 | -69.7 | -71.0 | -65.8 | -59.8 | -56.7 | -53.2 | -48.6 | /// | /// | /// |
| 19日 | /// | 21.9 | 21.3 | 19.2 | 16.5 | 10.5 | 3.4 | -4.5 | -14.7 | -21.2 | -29.3 | -39.4 | -51.5 | -58.2 | -64.7 | -69.7 | -71.0 | -65.8 | -59.8 | -56.7 | -53.2 | -48.6 | /// | /// | /// |
| 20日 | /// | 21.9 | 21.3 | 19.2 | 16.5 | 10.5 | 3.4 | -4.5 | -14.7 | -21.2 | -29.3 | -39.4 | -51.5 | -58.2 | -64.6 | -69.6 | -71.0 | -65.8 | -59.8 | -56.7 | -53.2 | -48.6 | /// | /// | /// |
| 21日 | /// | 22.0 | 21.3 | 19.2 | 16.5 | 10.5 | 3.5 | -4.4 | -14.7 | -21.2 | -29.3 | -39.4 | -51.4 | -58.1 | -64.6 | -69.6 | -71.0 | -65.8 | -59.8 | -56.7 | -53.3 | -48.7 | /// | /// | /// |
| 22日 | /// | 22.0 | 21.3 | 19.2 | 16.5 | 10.6 | 3.5 | -4.4 | -14.6 | -21.2 | -29.3 | -39.4 | -51.4 | -58.1 | -64.5 | -69.5 | -71.0 | -65.8 | -59.8 | -56.7 | -53.3 | -48.7 | /// | /// | /// |
| 23日 | /// | 22.0 | 21.4 | 19.2 | 16.5 | 10.6 | 3.6 | -4.4 | -14.6 | -21.2 | -29.3 | -39.4 | -51.4 | -58.0 | -64.4 | -69.5 | -71.0 | -65.8 | -59.9 | -56.7 | -53.3 | -48.7 | /// | /// | /// |
| 24日 | /// | 22.0 | 21.4 | 19.2 | 16.5 | 10.6 | 3.6 | -4.4 | -14.6 | -21.2 | -29.3 | -39.4 | -51.4 | -57.9 | -64.3 | -69.4 | -71.0 | -65.9 | -59.9 | -56.7 | -53.3 | -48.7 | -45.2 | /// | /// |
| 25日 | /// | 22.0 | 21.4 | 19.2 | 16.6 | 10.6 | 3.7 | -4.3 | -14.6 | -21.2 | -29.3 | -39.4 | -51.3 | -57.9 | -64.2 | -69.4 | -71.1 | -65.9 | -59.9 | -56.8 | -53.4 | -48.7 | -45.2 | /// | /// |
| 26日 | /// | 22.0 | 21.4 | 19.2 | 16.6 | 10.6 | 3.7 | -4.3 | -14.5 | -21.2 | -29.4 | -39.4 | -51.3 | -57.8 | -64.2 | -69.3 | -71.1 | -66.0 | -59.9 | -56.8 | -53.4 | -48.7 | -45.2 | /// | /// |
| 27日 | /// | 22.1 | 21.5 | 19.2 | 16.6 | 10.6 | 3.8 | -4.3 | -14.5 | -21.2 | -29.4 | -39.4 | -51.3 | -57.7 | -64.1 | -69.3 | -71.1 | -66.1 | -60.0 | -56.8 | -53.4 | -48.7 | -45.2 | /// | /// |
| 28日 | /// | 22.1 | 21.5 | 19.2 | 16.6 | 10.7 | 3.8 | -4.2 | -14.5 | -21.2 | -29.4 | -39.4 | -51.3 | -57.7 | -64.0 | -69.2 | -71.1 | -66.1 | -60.0 | -56.8 | -53.4 | -48.7 | -45.2 | /// | /// |
| 29日 | /// | 22.1 | 21.5 | 19.2 | 16.6 | 10.7 | 3.8 | -4.2 | -14.5 | -21.2 | -29.4 | -39.4 | -51.3 | -57.7 | -64.0 | -69.2 | -71.2 | -66.2 | -60.0 | -56.9 | -53.4 | -48.7 | -45.3 | /// | /// |
| 30日 | /// | 22.1 | 21.5 | 19.2 | 16.6 | 10.7 | 3.8 | -4.2 | -14.5 | -21.2 | -29.4 | -39.4 | -51.3 | -57.6 | -64.0 | -69.2 | -71.2 | -66.3 | -60.0 | -56.9 | -53.5 | -48.7 | -45.3 | /// | /// |
| 31日 | /// | 22.2 | 21.5 | 19.2 | 16.6 | 10.8 | 3.9 | -4.2 | -14.5 | -21.2 | -29.4 | -39.4 | -51.3 | -57.6 | -63.9 | -69.1 | -71.2 | -66.4 | -60.1 | -56.9 | -53.5 | -48.7 | -45.3 | /// | /// |