指定気圧面の観測データ（日ごとの値）
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稚内 2013年4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 | 1016.6 | 4 | 2.5 | 54 | 5.3 | 240 |
| 2 | 1014.1 | 4 | 3.6 | 80 | 3.1 | 200 |
| 3 | 1004.1 | 4 | 7.2 | 80 | 2.1 | 180 |
| 4 | 1013.4 | 4 | 3.7 | 71 | 7.0 | 240 |
| 5 | 1020.1 | 4 | 2.1 | 67 | 0.5 | 210 |
| 6 | 1007.5 | 4 | 1.7 | 89 | 5.4 | 60 |
| 7 | 977.0 | 4 | 3.1 | 90 | 4.7 | 110 |
| 8 | 993.3 | 4 | 2.2 | 90 | 5.4 | 280 |
| 9 | 998.9 | 4 | 1.4 | 93 | 3.0 | 150 |
| 10 | 1003.7 | 4 | 3.4 | 59 | 5.6 | 250 |
| 11 | 1002.6 | 4 | 3.4 | 61 | 7.6 | 240 |
| 12 | 1003.3 | 4 | 4.4 | 70 | 5.7 | 240 |
| 13 | 1006.2 | 4 | 6.2 | 74 | 6.0 | 180 |
| 14 | 993.7 | 4 | 4.8 | 88 | 4.8 | 220 |
| 15 | 1003.1 | 4 | 4.4 | 63 | 5.6 | 210 |
| 16 | 1011.6 | 4 | 5.0 | 61 | 1.7 | 220 |
| 17 | 1010.9 | 4 | 1.9 | 87 | 2.0 | 80 |
| 18 | 1006.7 | 4 | 2.8 | 85 | 1.7 | 130 |
| 19 | 1007.9 | 4 | 2.5 | 73 | 3.1 | 280 |
| 20 | 1009.9 | 4 | 4.9 | 72 | 5.1 | 200 |
| 21 | 1012.6 | 4 | 5.8 | 73 | 3.1 | 30 |
| 22 | 1011.4 | 4 | 6.6 | 69 | 5.2 | 240 |
| 23 | 1016.4 | 4 | 7.3 | 82 | 4.8 | 190 |
| 24 | 1003.0 | 4 | 7.9 | 70 | 2.2 | 20 |
| 25 | 1001.2 | 4 | 3.7 | 87 | 6.2 | 280 |
| 26 | 1005.4 | 4 | 5.9 | 87 | 3.7 | 50 |
| 27 | 1006.7 | 4 | 5.4 | 73 | 9.5 | 360 |
| 28 | 1011.9 | 4 | 3.8 | 90 | 10.9 | 350 |
| 29 | 1015.3 | 4 | 3.5 | 88 | 0.9 | 340 |
| 30 | 1010.3 | 4 | 2.1 | 92 | 6.6 | 70 |