１時間ごとの値
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倶知安（後志地方) 2017年9月12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 | 991.3 | 1013.4 | 0.0 | 16.0 | 12.9 | 14.9 | 82 | 2.5 | 南南西 | × | × |  | 20.0 | |||
| 2 | 990.7 | 1012.7 | 0.0 | 16.8 | 12.6 | 14.5 | 76 | 5.0 | 南東 | × | × | | 20.0 | |||
| 3 | 989.5 | 1011.6 | 0.0 | 15.3 | 13.5 | 15.5 | 89 | 1.7 | 南東 | × | × | | 20.0 | |||
| 4 | 989.1 | 1011.2 | 0.5 | 15.2 | 13.6 | 15.5 | 90 | 2.2 | 東 | × | × | | 20.0 | |||
| 5 | 988.8 | 1010.9 | 1.0 | 15.7 | 14.2 | 16.2 | 91 | 5.6 | 南東 | × | × | | 20.0 | |||
| 6 | 987.8 | 1009.8 | 0.0 | 16.3 | 14.8 | 16.9 | 91 | 2.4 | 東北東 | 0.0 | × | × | | 20.0 | ||
| 7 | 987.4 | 1009.4 | 1.0 | 16.7 | 15.2 | 17.3 | 91 | 5.7 | 東 | 0.0 | × | × | | 20.0 | ||
| 8 | 986.7 | 1008.6 | 0.5 | 17.0 | 15.0 | 17.1 | 88 | 7.1 | 東南東 | 0.0 | × | × | | 20.0 | ||
| 9 | 986.4 | 1008.4 | 1.5 | 16.6 | 15.6 | 17.8 | 94 | 2.7 | 北北東 | 0.0 | × | × | | 11.6 | ||
| 10 | 985.7 | 1007.6 | 1.0 | 16.8 | 15.7 | 17.8 | 93 | 2.6 | 北 | 0.0 | × | × | | 20.0 | ||
| 11 | 984.9 | 1006.7 | 0.0 | 17.8 | 15.4 | 17.5 | 86 | 1.6 | 北 | 0.0 | × | × | | 19.2 | ||
| 12 | 984.4 | 1006.2 | 0.0 | 18.1 | 15.6 | 17.7 | 85 | 2.7 | 東南東 | 0.0 | × | × | | 20.0 | ||
| 13 | 984.2 | 1006.0 | 1.5 | 17.6 | 15.8 | 17.9 | 89 | 5.2 | 東南東 | 0.0 | × | × | | 7.23 | ||
| 14 | 983.3 | 1005.1 | 1.5 | 17.6 | 16.1 | 18.3 | 91 | 3.0 | 東 | 0.0 | × | × | | 7.36 | ||
| 15 | 982.9 | 1004.6 | 0.5 | 18.3 | 16.5 | 18.7 | 89 | 2.9 | 北東 | 0.0 | × | × |  | 20.0 | ||
| 16 | 983.4 | 1005.2 | -- | 17.1 | 15.6 | 17.7 | 91 | 4.2 | 北北西 | 0.0 | × | × | | 20.0 | ||
| 17 | 984.0 | 1005.9 | -- | 16.4 | 15.4 | 17.5 | 94 | 3.5 | 北西 | 0.0 | × | × | | 20.0 | ||
| 18 | 984.3 | 1006.2 | -- | 16.4 | 15.3 | 17.3 | 93 | 2.8 | 北西 | 0.0 | × | × | | 20.0 | ||
| 19 | 984.9 | 1006.9 | 0.0 | 16.2 | 15.1 | 17.1 | 93 | 3.3 | 西北西 | × | × | | 20.0 | |||
| 20 | 985.0 | 1007.0 | 0.0 | 15.9 | 15.1 | 17.2 | 95 | 1.1 | 北西 | × | × |  | 20.0 | |||
| 21 | 985.0 | 1007.0 | -- | 15.8 | 14.9 | 16.9 | 94 | 1.7 | 北北西 | × | × | | 20.0 | |||
| 22 | 985.1 | 1007.1 | -- | 15.8 | 14.9 | 16.9 | 94 | 0.3 | 北北西 | × | × | | 20.0 | |||
| 23 | 985.3 | 1007.3 | -- | 15.9 | 14.9 | 17.0 | 94 | 1.2 | 東北東 | × | × | | 20.0 | |||
| 24 | 985.6 | 1007.6 | 0.0 | 15.6 | 15.1 | 17.2 | 97 | 1.9 | 東北東 | × | × | | 8.15 | |||
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