指定気圧面の観測データ（日ごとの値）
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稚内 1997年4月9時 地上
| 日 | 気圧(hPa) | 高度(m) | 気温(℃) | 相対湿度(%) | 風速(m/s) | 風向(°) |
|---|---|---|---|---|---|---|
| 1 | 1008.2 | 11 | -0.2 | 55 | 5.1 | 260 |
| 2 | 1017.8 | 11 | 1.9 | 41 | 5.5 | 260 |
| 3 | 1018.2 | 11 | 3.0 | 45 | 2.3 | 270 |
| 4 | 1015.8 | 11 | 4.5 | 71 | 3.3 | 210 |
| 5 | 1013.9 | 11 | 6.8 | 49 | 3.4 | 200 |
| 6 | 1016.1 | 11 | 7.0 | 76 | 3.7 | 170 |
| 7 | 1011.5 | 11 | 4.5 | 82 | 4.1 | 40 |
| 8 | 1000.6 | 11 | 3.5 | 93 | 4.2 | 60 |
| 9 | 995.9 | 11 | 5.1 | 94 | 4.3 | 210 |
| 10 | 986.2 | 11 | 2.9 | 85 | 5.5 | 280 |
| 11 | 995.6 | 11 | 2.2 | 62 | 3.2 | 360 |
| 12 | 996.9 | 11 | 2.6 | 51 | 2.8 | 270 |
| 13 | 1003.4 | 11 | 4.6 | 64 | 2.3 | 250 |
| 14 | 1012.6 | 11 | 1.9 | 78 | 2.7 | 340 |
| 15 | 1015.6 | 11 | 2.5 | 68 | 2.5 | 40 |
| 16 | 1016.5 | 11 | 2.3 | 76 | 2.1 | 300 |
| 17 | 1017.6 | 11 | 5.8 | 70 | 3.3 | 220 |
| 18 | 1016.9 | 11 | 6.2 | 75 | 7.6 | 220 |
| 19 | 1018.5 | 11 | 7.0 | 69 | 4.6 | 220 |
| 20 | 1025.5 | 11 | 5.1 | 79 | 2.4 | 250 |
| 21 | 1024.5 | 11 | 4.8 | 81 | 1.7 | 110 |
| 22 | 1018.8 | 11 | 3.2 | 88 | 5.3 | 70 |
| 23 | 1013.9 | 11 | 1.2 | 96 | 6.8 | 10 |
| 24 | 1009.9 | 11 | 2.5 | 68 | 6.9 | 360 |
| 25 | 1009.4 | 11 | 6.6 | 55 | 1.8 | 260 |
| 26 | 1007.0 | 11 | 9.5 | 59 | 15.5 | 230 |
| 27 | 1003.7 | 11 | 8.4 | 79 | 8.1 | 220 |
| 28 | 999.5 | 11 | 9.6 | 66 | 8.0 | 210 |
| 29 | 999.0 | 11 | 8.3 | 93 | 6.2 | 230 |
| 30 | 999.8 | 11 | 4.5 | 87 | 6.0 | 260 |