指定気圧面の観測データ（日ごとの値）
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根室 1988年6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 | 1013.9 | 26 | 12.7 | 89 | 1.7 | 220 |
| 2 | 1011.0 | 26 | 13.9 | 97 | 3.1 | 210 |
| 3 | 1005.5 | 26 | 8.8 | 100 | 5.4 | 120 |
| 4 | 990.4 | 26 | 6.8 | 98 | 3.0 | 10 |
| 5 | 1003.8 | 26 | 9.9 | 87 | 3.3 | 270 |
| 6 | 1003.7 | 26 | 12.4 | 89 | 3.8 | 180 |
| 7 | 998.2 | 26 | 9.6 | 94 | 2.5 | 40 |
| 8 | 1003.9 | 26 | 10.6 | 93 | 1.9 | 120 |
| 9 | 1003.8 | 26 | 7.4 | 92 | 3.4 | 70 |
| 10 | 1003.1 | 26 | 6.0 | 99 | 3.1 | 40 |
| 11 | 1007.8 | 26 | 8.4 | 95 | 2.6 | 100 |
| 12 | 1008.0 | 26 | 6.7 | 94 | 3.2 | 90 |
| 13 | 1003.9 | 26 | 6.4 | 97 | 3.0 | 90 |
| 14 | 1007.0 | 26 | 7.9 | 100 | 5.4 | 120 |
| 15 | 1007.1 | 26 | 8.0 | 100 | 2.1 | 20 |
| 16 | 1011.5 | 26 | 7.8 | 97 | 2.3 | 50 |
| 17 | 1007.3 | 26 | 6.4 | 99 | 3.3 | 40 |
| 18 | 1007.2 | 26 | 10.1 | 100 | 1.4 | 190 |
| 19 | 1006.7 | 26 | 9.5 | 99 | 1.2 | 80 |
| 20 | 1009.9 | 26 | 9.1 | 100 | 1.2 | 110 |
| 21 | 1011.3 | 26 | 9.9 | 93 | 2.2 | 170 |
| 22 | 1010.3 | 26 | 12.8 | 90 | 3.9 | 210 |
| 23 | 1008.5 | 26 | 15.4 | 83 | 1.5 | 160 |
| 24 | 1012.0 | 26 | 10.3 | 90 | 2.7 | 120 |
| 25 | 1014.6 | 26 | 11.7 | 100 | 4.1 | 150 |
| 26 | 1015.7 | 26 | 11.6 | 98 | 5.5 | 160 |
| 27 | 1013.3 | 26 | 11.2 | 99 | 1.7 | 150 |
| 28 | 1008.3 | 26 | 12.7 | 98 | 2.6 | 180 |
| 29 | 1005.6 | 26 | 12.3 | 92 | 3.3 | 160 |
| 30 | 1005.5 | 26 | 9.1 | 100 | 2.9 | 130 |