指定気圧面の観測データ（日ごとの値）
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稚内 2009年3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 | 1017.7 | 12 | -3.6 | 55 | 5.1 | 360 |
| 2 | 1019.8 | 12 | -4.9 | 44 | 2.7 | 310 |
| 3 | 1016.1 | 12 | -0.4 | 56 | 3.7 | 220 |
| 4 | 1018.4 | 12 | -1.0 | 71 | 3.8 | 30 |
| 5 | 1023.2 | 12 | -2.9 | 80 | 1.6 | 170 |
| 6 | 995.7 | 12 | 0.8 | 95 | 6.6 | 130 |
| 7 | 997.3 | 12 | -1.1 | 50 | 9.1 | 270 |
| 8 | 1013.2 | 12 | 0.0 | 60 | 6.6 | 250 |
| 9 | 1009.4 | 12 | 5.2 | 73 | 6.4 | 200 |
| 10 | 1003.4 | 12 | -1.2 | 65 | 4.1 | 280 |
| 11 | 1004.8 | 12 | 0.4 | 86 | 9.9 | 360 |
| 12 | 1025.2 | 12 | -1.0 | 64 | 3.4 | 250 |
| 13 | 1008.6 | 12 | 3.0 | 68 | 4.3 | 170 |
| 14 | 980.9 | 12 | 1.5 | 82 | 4.2 | 260 |
| 15 | 1000.1 | 12 | 1.2 | 66 | 7.5 | 240 |
| 16 | 1005.4 | 12 | 1.9 | 61 | 2.7 | 240 |
| 17 | 1012.3 | 12 | 2.1 | 92 | 1.6 | 180 |
| 18 | 1007.7 | 12 | 3.0 | 86 | 1.6 | 150 |
| 19 | 1005.5 | 12 | 2.9 | 92 | 2.6 | 330 |
| 20 | 1010.0 | 12 | -2.0 | 48 | 3.3 | 280 |
| 21 | 1009.3 | 12 | 2.2 | 73 | 6.0 | 250 |
| 22 | 995.5 | 12 | 1.6 | 94 | 2.3 | 80 |
| 23 | 999.0 | 12 | -1.6 | 88 | 5.9 | 260 |
| 24 | 1008.4 | 12 | -3.6 | 65 | 6.3 | 250 |
| 25 | 1014.8 | 12 | -1.7 | 68 | 3.1 | 110 |
| 26 | 1000.5 | 12 | 0.4 | 94 | 1.5 | 300 |
| 27 | 1009.6 | 12 | 0.1 | 65 | 1.2 | 220 |
| 28 | 1019.5 | 12 | 0.5 | 91 | 9.5 | 70 |
| 29 | 1028.3 | 12 | 0.1 | 87 | 5.4 | 100 |
| 30 | 1022.9 | 12 | -0.2 | 83 | 2.0 | 80 |
| 31 | 1019.5 | 12 | -1.0 | 77 | 2.8 | 120 |