指定気圧面の観測データ（日ごとの値）
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那覇 1997年9月21時 地上
| 日 | 気圧(hPa) | 高度(m) | 気温(℃) | 相対湿度(%) | 風速(m/s) | 風向(°) |
|---|---|---|---|---|---|---|
| 1 | 1004.7 | 27 | 27.8 | 75 | 4.5 | 10 |
| 2 | 1004.5 | 27 | 27.7 | 82 | 3.1 | 260 |
| 3 | 1005.6 | 27 | 28.1 | 84 | 4.4 | 250 |
| 4 | 1007.5 | 27 | 28.3 | 82 | 3.9 | 180 |
| 5 | 1008.2 | 27 | 28.2 | 81 | 6.5 | 180 |
| 6 | 1010.3 | 27 | 27.8 | 80 | 7.8 | 180 |
| 7 | 1011.5 | 27 | 27.2 | 85 | 3.7 | 180 |
| 8 | 1011.3 | 27 | 27.1 | 79 | 0.3 | 340 |
| 9 | 1011.5 | 27 | 28.1 | 78 | 0.7 | 320 |
| 10 | 1010.2 | 27 | 28.5 | 74 | 2.7 | 20 |
| 11 | 1008.7 | 27 | 25.9 | 83 | 0.8 | 150 |
| 12 | 1006.6 | 27 | 27.5 | 66 | 4.5 | 50 |
| 13 | 1001.8 | 27 | 27.7 | 85 | 6.6 | 20 |
| 14 | 995.3 | 27 | 27.8 | 78 | 10.6 | 310 |
| 15 | 1000.0 | 27 | 27.3 | 80 | 9.3 | 290 |
| 16 | 1007.5 | 27 | 26.1 | 80 | 7.2 | 350 |
| 17 | 1008.0 | 27 | 25.3 | 83 | 3.1 | 20 |
| 18 | 1007.3 | 27 | 26.1 | 66 | 7.7 | 350 |
| 19 | 1009.7 | 27 | 25.0 | 63 | 6.5 | 360 |
| 20 | 1010.9 | 27 | 25.0 | 58 | 4.5 | 30 |
| 21 | 1012.1 | 27 | 25.3 | 63 | 4.5 | 20 |
| 22 | 1014.0 | 27 | 25.6 | 61 | 6.7 | 30 |
| 23 | 1014.4 | 27 | 25.2 | 62 | 4.1 | 30 |
| 24 | 1013.6 | 27 | 26.0 | 64 | 3.3 | 90 |
| 25 | 1011.2 | 27 | 26.5 | 81 | 1.5 | 310 |
| 26 | 1012.3 | 27 | 25.6 | 67 | 5.7 | 360 |
| 27 | 1013.8 | 27 | 20.5 | 75 | 2.0 | 130 |
| 28 | 1013.7 | 27 | 23.3 | 68 | 2.2 | 40 |
| 29 | 1013.8 | 27 | 23.9 | 64 | 4.0 | 20 |
| 30 | 1013.7 | 27 | 25.9 | 65 | 7.8 | 110 |