指定気圧面の観測データ（日ごとの値）
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稚内 2002年2月21時 地上
| 日 | 気圧(hPa) | 高度(m) | 気温(℃) | 相対湿度(%) | 風速(m/s) | 風向(°) |
|---|---|---|---|---|---|---|
| 1 | 1016.4 | 11 | -3.3 | 59 | 3.5 | 250 |
| 2 | 1017.3 | 11 | -3.2 | 83 | 2.0 | 290 |
| 3 | 1022.5 | 11 | -0.8 | 60 | 3.8 | 240 |
| 4 | 1016.3 | 11 | 2.1 | 59 | 8.6 | 240 |
| 5 | 1014.6 | 11 | 2.5 | 79 | 4.7 | 260 |
| 6 | 1012.1 | 11 | 1.9 | 92 | 1.4 | 200 |
| 7 | 1003.6 | 11 | 0.9 | 96 | 0.7 | 170 |
| 8 | 992.9 | 11 | -0.2 | 95 | 5.4 | 140 |
| 9 | 996.3 | 11 | -6.2 | 74 | 6.7 | 280 |
| 10 | 1000.5 | 11 | -7.8 | 55 | 5.0 | 270 |
| 11 | 1002.8 | 11 | -9.8 | 76 | 1.5 | 180 |
| 12 | 1012.6 | 11 | -4.2 | 60 | 6.7 | 50 |
| 13 | 1019.6 | 11 | -5.3 | 53 | 2.0 | 190 |
| 14 | 1018.1 | 11 | -4.7 | 76 | 1.4 | 190 |
| 15 | 1016.9 | 11 | -2.7 | 59 | 3.0 | 330 |
| 16 | 1017.2 | 11 | -0.5 | 59 | 2.7 | 260 |
| 17 | 1009.0 | 11 | 0.3 | 97 | 1.8 | 150 |
| 18 | 1001.1 | 11 | -1.2 | 95 | 12.3 | 70 |
| 19 | 1010.5 | 11 | -1.3 | 70 | 5.8 | 360 |
| 20 | 1012.6 | 11 | -1.8 | 78 | 5.5 | 280 |
| 21 | 1020.7 | 11 | -0.5 | 60 | 4.5 | 250 |
| 22 | 1006.1 | 11 | -0.4 | 93 | 0.0 | - |
| 23 | 1011.5 | 11 | -1.9 | 71 | 6.3 | 360 |
| 24 | 1014.9 | 11 | -1.0 | 53 | 4.4 | 260 |
| 25 | 1015.8 | 11 | 1.3 | 65 | 2.5 | 270 |
| 26 | 1015.3 | 11 | 2.9 | 84 | 4.7 | 200 |
| 27 | 1012.7 | 11 | 4.7 | 83 | 6.0 | 200 |
| 28 | 1015.9 | 11 | 2.9 | 76 | 2.5 | 260 |