平年値（日ごとの値）
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八丈島 3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 | /// | 6.6 | 5.0 | 2.1 | -0.3 | -4.9 | -11.1 | -19.0 | -29.5 | -35.6 | -41.9 | -47.2 | -51.5 | -54.4 | -58.1 | -62.1 | -65.2 | -65.1 | -61.1 | -58.0 | -55.6 | /// | /// | /// | /// |
| 2日 | /// | 6.7 | 5.1 | 2.2 | -0.2 | -4.8 | -11.0 | -19.0 | -29.5 | -35.6 | -41.9 | -47.2 | -51.6 | -54.4 | -58.0 | -62.0 | -65.2 | -65.1 | -61.0 | -58.0 | -55.5 | /// | /// | /// | /// |
| 3日 | /// | 6.7 | 5.2 | 2.3 | -0.2 | -4.7 | -11.0 | -18.9 | -29.4 | -35.6 | -41.9 | -47.2 | -51.6 | -54.4 | -58.0 | -62.0 | -65.1 | -65.0 | -60.9 | -57.9 | -55.5 | /// | /// | /// | /// |
| 4日 | /// | 6.8 | 5.2 | 2.4 | -0.1 | -4.7 | -11.0 | -18.9 | -29.4 | -35.6 | -41.9 | -47.2 | -51.6 | -54.4 | -58.0 | -61.9 | -65.0 | -64.9 | -60.8 | -57.8 | -55.4 | /// | /// | /// | /// |
| 5日 | /// | 6.8 | 5.3 | 2.4 | -0.1 | -4.6 | -10.9 | -18.9 | -29.4 | -35.6 | -41.9 | -47.3 | -51.7 | -54.4 | -58.0 | -61.9 | -65.0 | -64.9 | -60.8 | -57.8 | -55.3 | /// | /// | /// | /// |
| 6日 | /// | 6.8 | 5.3 | 2.5 | 0.0 | -4.6 | -10.9 | -18.9 | -29.3 | -35.6 | -42.0 | -47.3 | -51.7 | -54.4 | -57.9 | -61.8 | -64.9 | -64.8 | -60.7 | -57.7 | -55.3 | /// | /// | /// | /// |
| 7日 | /// | 6.8 | 5.3 | 2.5 | 0.0 | -4.6 | -10.9 | -18.9 | -29.3 | -35.6 | -42.0 | -47.3 | -51.8 | -54.4 | -58.0 | -61.8 | -64.9 | -64.8 | -60.6 | -57.6 | -55.2 | /// | /// | /// | /// |
| 8日 | /// | 6.8 | 5.4 | 2.5 | 0.0 | -4.6 | -10.9 | -18.8 | -29.3 | -35.6 | -42.0 | -47.4 | -51.9 | -54.5 | -58.0 | -61.8 | -64.8 | -64.7 | -60.6 | -57.6 | -55.1 | /// | /// | /// | /// |
| 9日 | /// | 6.9 | 5.4 | 2.6 | 0.1 | -4.5 | -10.8 | -18.8 | -29.2 | -35.6 | -42.1 | -47.5 | -52.0 | -54.6 | -58.0 | -61.8 | -64.8 | -64.7 | -60.6 | -57.5 | -55.1 | /// | /// | /// | /// |
| 10日 | /// | 6.9 | 5.5 | 2.6 | 0.1 | -4.5 | -10.8 | -18.7 | -29.2 | -35.5 | -42.1 | -47.6 | -52.2 | -54.7 | -58.1 | -61.8 | -64.8 | -64.7 | -60.6 | -57.5 | -55.0 | /// | /// | /// | /// |
| 11日 | /// | 7.0 | 5.5 | 2.7 | 0.2 | -4.4 | -10.7 | -18.6 | -29.1 | -35.5 | -42.1 | -47.8 | -52.4 | -54.8 | -58.1 | -61.8 | -64.8 | -64.8 | -60.6 | -57.5 | -55.0 | /// | /// | /// | /// |
| 12日 | /// | 7.1 | 5.6 | 2.8 | 0.3 | -4.3 | -10.6 | -18.5 | -29.0 | -35.4 | -42.1 | -47.9 | -52.6 | -55.0 | -58.2 | -61.8 | -64.8 | -64.8 | -60.6 | -57.4 | -54.9 | /// | /// | /// | /// |
| 13日 | /// | 7.1 | 5.7 | 2.9 | 0.5 | -4.1 | -10.4 | -18.3 | -28.9 | -35.3 | -42.1 | -48.1 | -52.8 | -55.1 | -58.3 | -61.9 | -64.9 | -64.9 | -60.6 | -57.4 | -54.9 | /// | /// | /// | /// |
| 14日 | /// | 7.3 | 5.8 | 3.1 | 0.6 | -4.0 | -10.3 | -18.1 | -28.7 | -35.2 | -42.1 | -48.2 | -53.0 | -55.3 | -58.4 | -62.0 | -64.9 | -64.9 | -60.7 | -57.4 | -54.9 | /// | /// | /// | /// |
| 15日 | /// | 7.4 | 5.9 | 3.2 | 0.8 | -3.8 | -10.1 | -17.9 | -28.6 | -35.1 | -42.1 | -48.3 | -53.2 | -55.5 | -58.5 | -62.0 | -64.9 | -65.0 | -60.7 | -57.4 | -54.9 | /// | /// | /// | /// |
| 16日 | /// | 7.5 | 6.0 | 3.4 | 1.0 | -3.6 | -9.9 | -17.7 | -28.4 | -34.9 | -42.0 | -48.4 | -53.3 | -55.6 | -58.6 | -62.1 | -65.0 | -65.1 | -60.8 | -57.4 | -54.9 | /// | /// | /// | /// |
| 17日 | /// | 7.6 | 6.2 | 3.5 | 1.1 | -3.5 | -9.7 | -17.6 | -28.2 | -34.8 | -41.9 | -48.5 | -53.5 | -55.7 | -58.7 | -62.1 | -65.0 | -65.1 | -60.8 | -57.4 | -54.9 | /// | /// | /// | /// |
| 18日 | /// | 7.7 | 6.3 | 3.7 | 1.3 | -3.3 | -9.6 | -17.4 | -28.0 | -34.6 | -41.8 | -48.5 | -53.7 | -55.9 | -58.7 | -62.2 | -65.1 | -65.2 | -60.8 | -57.4 | -54.9 | /// | /// | /// | /// |
| 19日 | /// | 7.8 | 6.4 | 3.8 | 1.4 | -3.2 | -9.4 | -17.2 | -27.8 | -34.5 | -41.7 | -48.6 | -53.8 | -56.0 | -58.8 | -62.2 | -65.1 | -65.2 | -60.8 | -57.4 | -54.9 | /// | /// | /// | /// |
| 20日 | /// | 7.9 | 6.5 | 4.0 | 1.6 | -3.1 | -9.3 | -17.1 | -27.7 | -34.3 | -41.6 | -48.6 | -53.9 | -56.1 | -58.8 | -62.3 | -65.1 | -65.3 | -60.8 | -57.4 | -54.9 | /// | /// | /// | /// |
| 21日 | /// | 8.0 | 6.7 | 4.1 | 1.7 | -3.0 | -9.2 | -17.0 | -27.5 | -34.2 | -41.5 | -48.5 | -54.0 | -56.2 | -58.9 | -62.3 | -65.2 | -65.3 | -60.8 | -57.4 | -54.9 | /// | /// | /// | /// |
| 22日 | /// | 8.1 | 6.8 | 4.2 | 1.8 | -2.9 | -9.1 | -17.0 | -27.4 | -34.0 | -41.4 | -48.5 | -54.0 | -56.2 | -58.9 | -62.3 | -65.2 | -65.3 | -60.8 | -57.4 | -54.9 | /// | /// | /// | /// |
| 23日 | /// | 8.2 | 6.9 | 4.3 | 1.9 | -2.8 | -9.0 | -16.9 | -27.3 | -33.9 | -41.3 | -48.5 | -54.1 | -56.3 | -58.9 | -62.3 | -65.2 | -65.3 | -60.8 | -57.3 | -54.9 | /// | /// | /// | /// |
| 24日 | /// | 8.3 | 6.9 | 4.4 | 2.0 | -2.7 | -9.0 | -16.9 | -27.2 | -33.9 | -41.3 | -48.5 | -54.1 | -56.3 | -58.9 | -62.2 | -65.2 | -65.3 | -60.8 | -57.3 | -54.9 | /// | /// | /// | /// |
| 25日 | /// | 8.4 | 7.0 | 4.5 | 2.1 | -2.7 | -8.9 | -16.9 | -27.2 | -33.8 | -41.2 | -48.5 | -54.2 | -56.4 | -58.9 | -62.2 | -65.2 | -65.3 | -60.8 | -57.3 | -54.8 | /// | /// | /// | /// |
| 26日 | /// | 8.4 | 7.1 | 4.6 | 2.2 | -2.6 | -8.9 | -16.8 | -27.1 | -33.7 | -41.1 | -48.5 | -54.3 | -56.5 | -58.9 | -62.2 | -65.2 | -65.2 | -60.7 | -57.3 | -54.8 | /// | /// | /// | /// |
| 27日 | /// | 8.6 | 7.2 | 4.7 | 2.3 | -2.5 | -8.8 | -16.8 | -27.1 | -33.7 | -41.1 | -48.5 | -54.3 | -56.5 | -58.9 | -62.2 | -65.2 | -65.2 | -60.7 | -57.3 | -54.8 | /// | /// | /// | /// |
| 28日 | /// | 8.7 | 7.3 | 4.9 | 2.5 | -2.4 | -8.7 | -16.7 | -27.0 | -33.6 | -41.1 | -48.6 | -54.4 | -56.6 | -58.9 | -62.2 | -65.2 | -65.2 | -60.7 | -57.2 | -54.7 | -51.7 | /// | /// | /// |
| 29日 | /// | 8.8 | 7.5 | 5.0 | 2.6 | -2.2 | -8.6 | -16.6 | -27.0 | -33.6 | -41.0 | -48.6 | -54.5 | -56.6 | -58.9 | -62.1 | -65.1 | -65.2 | -60.7 | -57.2 | -54.7 | -51.7 | /// | /// | /// |
| 30日 | /// | 9.0 | 7.6 | 5.2 | 2.8 | -2.1 | -8.5 | -16.5 | -26.9 | -33.6 | -41.0 | -48.7 | -54.6 | -56.7 | -58.9 | -62.1 | -65.1 | -65.2 | -60.7 | -57.2 | -54.6 | -51.7 | /// | /// | /// |
| 31日 | /// | 9.1 | 7.8 | 5.4 | 3.0 | -1.9 | -8.4 | -16.4 | -26.8 | -33.5 | -41.0 | -48.8 | -54.7 | -56.8 | -58.9 | -62.1 | -65.1 | -65.2 | -60.7 | -57.2 | -54.6 | -51.7 | /// | /// | /// |