指定気圧面の観測データ（日ごとの値）
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秋田 2005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 | 1017.9 | 7 | 3.2 | 76 | 5.9 | 330 |
| 2 | 1022.1 | 7 | 5.6 | 51 | 3.2 | 120 |
| 3 | 1010.3 | 7 | 7.8 | 84 | 3.8 | 330 |
| 4 | 1012.6 | 7 | 4.8 | 59 | 1.0 | 210 |
| 5 | 1014.5 | 7 | 5.3 | 63 | 4.4 | 140 |
| 6 | 1012.1 | 7 | 14.2 | 56 | 9.3 | 220 |
| 7 | 1010.6 | 7 | 9.5 | 88 | 3.7 | 150 |
| 8 | 1009.5 | 7 | 8.5 | 70 | 9.4 | 260 |
| 9 | 1020.2 | 7 | 8.7 | 53 | 6.7 | 290 |
| 10 | 1011.9 | 7 | 9.9 | 48 | 8.0 | 120 |
| 11 | 1016.4 | 7 | 8.3 | 64 | 3.2 | 300 |
| 12 | 1014.2 | 7 | 7.4 | 66 | 3.6 | 130 |
| 13 | 1007.5 | 7 | 5.8 | 92 | 3.2 | 130 |
| 14 | 1017.1 | 7 | 9.4 | 67 | 4.8 | 260 |
| 15 | 1017.0 | 7 | 10.2 | 57 | 4.9 | 130 |
| 16 | 1019.5 | 7 | 7.8 | 82 | 3.8 | 140 |
| 17 | 1015.9 | 7 | 8.7 | 85 | 3.0 | 350 |
| 18 | 1028.7 | 7 | 7.3 | 61 | 1.6 | 130 |
| 19 | 1029.5 | 7 | 8.7 | 48 | 0.6 | 290 |
| 20 | 1018.0 | 7 | 11.8 | 40 | 8.5 | 130 |
| 21 | 1004.6 | 7 | 10.6 | 86 | 6.3 | 220 |
| 22 | 1003.3 | 7 | 8.9 | 78 | 3.9 | 170 |
| 23 | 1013.8 | 7 | 5.9 | 78 | 6.2 | 290 |
| 24 | 1022.8 | 7 | 7.4 | 66 | 1.5 | 140 |
| 25 | 1015.3 | 7 | 12.3 | 53 | 6.5 | 130 |
| 26 | 1008.1 | 7 | 12.3 | 75 | 2.9 | 230 |
| 27 | 1010.0 | 7 | 13.7 | 74 | 6.3 | 210 |
| 28 | 1002.6 | 7 | 17.6 | 47 | 4.5 | 190 |
| 29 | 1003.4 | 7 | 14.3 | 69 | 6.3 | 240 |
| 30 | 1011.7 | 7 | 12.7 | 66 | 3.5 | 210 |