１時間ごとの値
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倶知安（後志地方) 2018年5月9日 （１時間ごとの値）
| 時 | 気圧(hPa) | 降水量 (mm) | 気温 (℃) | 露点 温度 (℃) | 蒸気圧 (hPa) | 湿度 (％) | 風向・風速(m/s) | 日照 時間 (h) | 全天 日射量 (MJ/㎡) | 雪(cm) | 天気 | 雲量 | 視程 (km) | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 現地 | 海面 | 風速 | 風向 | 降雪 | 積雪 | |||||||||||
| 1 | 998.0 | 1021.1 | -- | 6.3 | 4.8 | 8.6 | 90 | 3.1 | 南 | × | × |  | 19.4 | |||
| 2 | 997.9 | 1021.0 | -- | 6.2 | 4.5 | 8.4 | 89 | 3.2 | 南南西 | × | × | | 20.0 | |||
| 3 | 998.2 | 1021.3 | -- | 6.0 | 4.3 | 8.3 | 89 | 2.5 | 南南西 | × | × | | 18.7 | |||
| 4 | 998.2 | 1021.4 | -- | 5.8 | 4.1 | 8.2 | 89 | 2.8 | 南 | × | × | | 17.0 | |||
| 5 | 998.4 | 1021.6 | -- | 5.8 | 4.3 | 8.3 | 90 | 2.0 | 南東 | 0.0 | × | × | | 13.3 | ||
| 6 | 998.7 | 1021.8 | -- | 6.0 | 4.2 | 8.2 | 88 | 3.4 | 南南西 | 0.0 | × | × | | 20.0 | ||
| 7 | 999.2 | 1022.3 | -- | 6.1 | 3.8 | 8.0 | 85 | 2.9 | 南南西 | 0.0 | × | × | | 20.0 | ||
| 8 | 999.1 | 1022.2 | -- | 6.5 | 3.3 | 7.7 | 80 | 4.0 | 南南西 | 0.0 | × | × | | 20.0 | ||
| 9 | 999.5 | 1022.6 | -- | 7.1 | 3.2 | 7.7 | 76 | 4.9 | 南 | 0.0 | × | × | | 20.0 | ||
| 10 | 999.0 | 1021.9 | -- | 8.4 | 3.5 | 7.8 | 71 | 2.4 | 東南東 | 0.0 | × | × | | 20.0 | ||
| 11 | 998.4 | 1021.1 | -- | 10.8 | 3.4 | 7.8 | 60 | 3.9 | 南 | 0.2 | × | × | | 20.0 | ||
| 12 | 997.7 | 1020.4 | -- | 11.4 | 3.2 | 7.7 | 57 | 6.5 | 南西 | 0.8 | × | × | | 20.0 | ||
| 13 | 997.3 | 1020.0 | -- | 11.1 | 3.9 | 8.1 | 61 | 6.6 | 南西 | 0.3 | × | × | | 20.0 | ||
| 14 | 997.2 | 1019.8 | -- | 11.3 | 3.8 | 8.0 | 60 | 5.9 | 南西 | 0.0 | × | × | | 20.0 | ||
| 15 | 996.8 | 1019.4 | -- | 12.0 | 4.5 | 8.4 | 60 | 4.8 | 南南西 | 0.1 | × | × | | 20.0 | ||
| 16 | 996.9 | 1019.6 | -- | 10.3 | 3.6 | 7.9 | 63 | 5.4 | 南南西 | 0.3 | × | × | | 20.0 | ||
| 17 | 996.9 | 1019.7 | -- | 9.5 | 3.5 | 7.8 | 66 | 5.7 | 南南西 | 0.0 | × | × | | 20.0 | ||
| 18 | 997.0 | 1019.8 | -- | 9.1 | 3.7 | 8.0 | 69 | 5.0 | 南南西 | 0.8 | × | × |  | 20.0 | ||
| 19 | 997.5 | 1020.5 | -- | 6.8 | 3.1 | 7.6 | 77 | 6.4 | 南南西 | 0.1 | × | × | | 20.0 | ||
| 20 | 997.9 | 1021.0 | -- | 5.8 | 3.1 | 7.7 | 83 | 5.8 | 南南西 | × | × | | 20.0 | |||
| 21 | 997.9 | 1021.0 | -- | 5.8 | 3.3 | 7.7 | 84 | 1.8 | 南 | × | × | | 20.0 | |||
| 22 | 997.5 | 1020.7 | -- | 5.3 | 2.3 | 7.2 | 81 | 5.8 | 南南西 | × | × | | 20.0 | |||
| 23 | 997.4 | 1020.6 | -- | 4.8 | 2.0 | 7.1 | 82 | 5.5 | 南南西 | × | × | | 20.0 | |||
| 24 | 997.5 | 1020.7 | -- | 4.6 | 1.8 | 7.0 | 82 | 4.7 | 南 | × | × | | 20.0 | |||
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