指定気圧面の観測データ（日ごとの値）
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根室 1994年3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 | 1014.9 | 39 | -1.6 | 75 | 4.1 | 340 |
| 2 | 1012.4 | 39 | -2.4 | 86 | 1.3 | 310 |
| 3 | 1009.9 | 39 | -1.5 | 67 | 7.9 | 330 |
| 4 | 1006.0 | 39 | -1.2 | 66 | 6.0 | 240 |
| 5 | 1005.4 | 39 | -2.8 | 46 | 6.8 | 260 |
| 6 | 1014.2 | 39 | -2.9 | 58 | 6.6 | 350 |
| 7 | 1023.0 | 39 | -2.7 | 59 | 5.7 | 330 |
| 8 | 1026.6 | 39 | -1.1 | 67 | 2.9 | 150 |
| 9 | 1002.9 | 39 | 1.1 | 96 | 15.4 | 140 |
| 10 | 997.7 | 39 | 0.4 | 71 | 0.9 | 90 |
| 11 | 999.6 | 39 | -1.5 | 47 | 9.0 | 250 |
| 12 | 1001.8 | 39 | -1.8 | 56 | 8.3 | 250 |
| 13 | 1004.3 | 39 | -2.4 | 58 | 4.1 | 240 |
| 14 | 1006.1 | 39 | -3.5 | 82 | 3.2 | 290 |
| 15 | 1011.2 | 39 | -1.0 | 82 | 3.1 | 290 |
| 16 | 1013.7 | 39 | 1.2 | 76 | 5.6 | 190 |
| 17 | 1004.9 | 39 | 2.2 | 84 | 8.5 | 160 |
| 18 | 1006.3 | 39 | 0.8 | 61 | 5.3 | 290 |
| 19 | 1012.7 | 39 | 0.0 | 65 | 10.4 | 310 |
| 20 | 1012.1 | 39 | -0.9 | 88 | 6.1 | 110 |
| 21 | 1013.2 | 39 | -1.2 | 70 | 6.2 | 360 |
| 22 | 1022.1 | 39 | -2.5 | 51 | 8.7 | 340 |
| 23 | 1027.5 | 39 | -0.3 | 60 | 4.8 | 160 |
| 24 | 1004.1 | 39 | 1.2 | 97 | 11.9 | 120 |
| 25 | 986.4 | 39 | 1.5 | 67 | 5.7 | 270 |
| 26 | 1004.3 | 39 | -3.8 | 80 | 13.0 | 310 |
| 27 | 1015.0 | 39 | -2.6 | 65 | 1.6 | 200 |
| 28 | 1008.1 | 39 | 3.2 | 77 | 9.3 | 220 |
| 29 | 999.6 | 39 | 0.5 | 69 | 9.7 | 320 |
| 30 | 1010.9 | 39 | -2.4 | 47 | 6.4 | 300 |
| 31 | 1008.5 | 39 | -0.7 | 92 | 6.1 | 140 |