平年値（年・月ごとの値）
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蘭越（後志地方) 平年値（年・月ごとの値） 詳細(雪)
| 要素 | 雪 | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 降雪の深さ | 各階級の日数(降雪の深さ) | 最深積雪 (cm) | 各階級の日数(最深積雪) | |||||||||||
| 合計 (cm) | 日合計の最大 (cm) | ≧3cm | ≧5cm | ≧10cm | ≧20cm | ≧50cm | ≧100cm | ≧5cm | ≧10cm | ≧20cm | ≧50cm | ≧100cm | ||
| 統計期間 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 |
| 資料年数 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 |
| 1月 | 213 | 25 | 21.0 | 16.6 | 8.7 | 1.9 | 0.0 | 0.0 | 104 | 30.9 | 30.9 | 30.6 | 23.9 | 7.0 |
| 2月 | 169 | 22 | 18.1 | 13.9 | 6.5 | 1.2 | 0.0 | 0.0 | 127 | 28.3 | 28.3 | 28.3 | 26.7 | 15.5 |
| 3月 | 107 | 16 | 13.7 | 8.2 | 3.2 | 0.2 | 0.0 | 0.0 | 114 | 30.6 | 30.4 | 29.9 | 25.5 | 10.8 |
| 4月 | 13 | 4 | 2.0 | 0.7 | 0.1 | 0.0 | 0.0 | 0.0 | 46 | 9.2 | 8.6 | 6.8 | 3.4 | 0.3 |
| 5月 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| 6月 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| 7月 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| 8月 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| 9月 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| 10月 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| 11月 | 53 | 15 | 5.8 | 4.2 | 1.9 | 0.3 | 0.0 | 0.0 | 20 | 7.0 | 4.8 | 1.6 | 0.0 | 0.0 |
| 12月 | 194 | 24 | 19.4 | 15.1 | 7.6 | 1.5 | 0.0 | 0.0 | 63 | 27.8 | 25.4 | 19.8 | 6.5 | 0.2 |
| 年 | 746 | 28 | 79.6 | 58.4 | 28.0 | 5.1 | 0.0 | 0.0 | 129 | 133.1 | 127.8 | 116.5 | 85.7 | 33.9 |