指定気圧面の観測データ（日ごとの値）
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昭和 1974年9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 | 991.9 | 21 | -11.6 | 49 | 5.4 | 30 |
| 2 | 989.6 | 21 | -17.2 | 50 | 8.2 | 80 |
| 3 | 984.1 | 21 | -22.2 | 47 | 1.7 | 20 |
| 4 | 982.8 | 21 | -25.3 | 60 | 1.5 | 90 |
| 5 | 989.7 | 21 | -23.6 | 41 | 1.8 | 140 |
| 6 | 987.4 | 21 | -14.3 | 48 | 0.7 | 80 |
| 7 | /// | /// | /// | /// | /// | /// |
| 8 | 969.8 | 21 | -8.8 | 90 | 3.1 | 160 |
| 9 | 979.3 | 21 | -11.2 | 81 | 12.2 | 50 |
| 10 | 967.4 | 21 | -12.8 | 67 | 3.6 | 20 |
| 11 | 977.8 | 21 | -13.6 | 73 | 8.0 | 40 |
| 12 | 965.9 | 21 | -12.3 | 65 | 0.7 | 290 |
| 13 | 973.5 | 21 | -17.7 | 73 | 2.1 | 360 |
| 14 | 978.3 | 21 | -18.5 | 79 | 5.2 | 20 |
| 15 | 981.7 | 21 | -21.7 | 74 | 1.0 | 150 |
| 16 | 979.8 | 21 | -25.2 | 59 | 6.1 | 70 |
| 17 | 977.0 | 21 | -20.2 | 75 | 13.0 | 70 |
| 18 | 953.1 | 21 | -13.1 | 88 | 15.5 | 40 |
| 19 | 982.0 | 21 | -19.8 | 74 | 0.8 | 320 |
| 20 | 977.3 | 21 | -20.5 | 59 | 1.0 | 180 |
| 21 | 976.0 | 21 | -21.8 | 68 | 0.2 | /// |
| 22 | 973.7 | 21 | -20.2 | 62 | 9.1 | 70 |
| 23 | 979.6 | 21 | -33.2 | 68 | 0.2 | /// |
| 24 | 991.5 | 21 | -27.1 | 52 | 1.4 | 140 |
| 25 | 969.7 | 21 | -22.1 | 50 | 2.0 | 50 |
| 26 | 985.1 | 21 | -27.3 | 61 | 0.5 | 90 |
| 27 | 966.9 | 21 | -7.6 | 93 | 20.2 | 40 |
| 28 | 975.0 | 21 | -10.4 | 91 | 0.6 | 210 |
| 29 | 976.3 | 21 | -22.8 | 73 | 0.3 | 300 |
| 30 | 971.7 | 21 | -15.2 | 76 | 5.7 | 50 |