指定気圧面の観測データ（日ごとの値）
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昭和 1968年4月9時（現地時間 3時） 地上
| 日 | 気圧(hPa) | 高度(m) | 気温(℃) | 相対湿度(%) | 風速(m/s) | 風向(°) |
|---|---|---|---|---|---|---|
| 1 | 979.2 | 15 | -6.3 | 65 | 5.8 | 50 |
| 2 | 982.1 | 15 | -9.4 | 70 | 4.4 | 90 |
| 3 | 979.8 | 15 | -7.8 | 73 | 14.6 | 60 |
| 4 | 966.5 | 15 | -2.4 | 89 | 19.5 | 50 |
| 5 | 977.5 | 15 | -3.4 | 86 | 21.5 | 60 |
| 6 | 972.8 | 15 | -6.9 | 64 | 9.1 | 40 |
| 7 | 972.8 | 15 | -7.0 | 61 | 16.2 | 70 |
| 8 | 995.6 | 15 | -9.8 | 84 | 3.5 | 190 |
| 9 | 991.3 | 15 | -11.6 | 68 | 1.7 | 90 |
| 10 | 983.9 | 15 | -6.2 | 64 | 3.7 | 20 |
| 11 | 981.5 | 15 | -5.9 | 81 | 16.1 | 40 |
| 12 | 977.6 | 15 | -13.7 | 74 | 0.6 | 340 |
| 13 | 984.8 | 15 | -7.1 | 87 | 1.2 | 200 |
| 14 | 988.6 | 15 | -10.4 | 62 | 2.8 | 160 |
| 15 | 984.9 | 15 | -11.8 | 49 | 3.7 | 60 |
| 16 | 979.2 | 15 | -6.3 | 72 | 8.3 | 40 |
| 17 | 959.6 | 15 | -10.1 | 72 | 4.9 | 20 |
| 18 | 961.5 | 15 | -4.6 | 75 | 9.2 | 50 |
| 19 | 973.5 | 15 | -7.2 | 51 | 1.2 | 120 |
| 20 | 980.5 | 15 | -10.6 | 54 | 5.1 | 60 |
| 21 | 980.2 | 15 | -8.0 | 63 | 0.9 | 150 |
| 22 | 988.5 | 15 | -6.4 | 64 | 4.0 | 140 |
| 23 | 999.1 | 15 | -10.1 | 65 | 0.5 | 100 |
| 24 | 996.6 | 15 | -15.1 | 53 | 11.1 | 70 |
| 25 | 986.9 | 15 | -13.8 | 55 | 1.3 | 220 |
| 26 | 977.0 | 15 | -13.4 | 63 | 8.2 | 70 |
| 27 | 988.7 | 15 | -10.2 | 58 | 9.7 | 70 |
| 28 | 1001.7 | 15 | -13.3 | 57 | 6.2 | 70 |
| 29 | 1003.3 | 15 | -14.3 | 69 | 4.6 | 170 |
| 30 | 983.6 | 15 | -15.2 | 63 | 6.1 | 160 |