月ごとの値
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留萌（留萌地方) 2001年（月ごとの値） 詳細（日照・雪・その他）
| 月 | 日照時間(h) | 全天日射量 (MJ/㎡) | 雪(cm) | 雲量 | 大気現象 | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 合計 | 日照率 | 各階級の日数 | 降雪 | 各階級の日数（降雪） | 最深積雪 | 各階級の日数（最深積雪） | 平均 | 各階級の日数 | 雪日数 | 霧日数 | 雷日数 | ||||||||||||||||||
| 不照 | 日照率 ≧40% | 平均 | 合計 | 日合計の最大 | ≧3cm | ≧5cm | ≧10cm | ≧20cm | ≧50cm | ≧100cm | 値 | 日 | ≧0cm | ≧1cm | ≧5cm | ≧10cm | ≧20cm | ≧50cm | ≧100cm | ＜1.5 | ≧8.5 | ||||||||
| 値 | 日 | ||||||||||||||||||||||||||||
| 58.5 | 20 | 8 | 7 | 4.8 | 123 | 20 | 20 | 17 | 9 | 3 | 1 | 0 | 0 | 66 | 31 | 31 | 31 | 31 | 31 | 31 | 12 | 0 | 8.9 | 0 | 23 | 29 | 0 | 0 | |
| 30.8 | 11 | 7 | 1 | 5.6 | 98 | 18 | 10 | 11 | 7 | 4 | 0 | 0 | 0 | 86 | 02 | 28 | 28 | 28 | 28 | 28 | 28 | 0 | 9.7 | 0 | 27 | 28 | 0 | 0 | |
| 129.3 | 35 | 3 | 11 | 11.9 | 41 | 11 | 05 | 4 | 4 | 2 | 0 | 0 | 0 | 70 | 05 | 31 | 31 | 31 | 31 | 27 | 18 | 0 | 7.9 | 0 | 16 | 24 | 0 | 0 | |
| 167.3 | 42 | 1 | 16 | 16.1 | 1 | 1 | 01 | 0 | 0 | 0 | 0 | 0 | 0 | 9 | 01 | 4 | 2 | 1 | 0 | 0 | 0 | 0 | 7.2 | 1 | 13 | 5 | 3 | 0 | |
| 222.4 | 49 | 1 | 17 | 20.3 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.0 | 3 | 11 | 0 | 3 | 0 | |||
| 162.6 | 35 | 4 | 12 | 18.9 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.7 | 4 | 19 | 0 | 2 | 0 | |||
| 132.9 | 28 | 7 | 10 | 16.3 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.9 | 0 | 23 | 0 | 4 | 1 | |||
| 217.4 | 50 | 4 | 19 | 18.8 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.5 | 3 | 13 | 0 | 1 | 0 | |||
| 179.1 | 48 | 3 | 18 | 14.0 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.4 | 1 | 14 | 0 | 1 | 2 | |||
| 118.2 | 35 | 4 | 11 | 8.6 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.0 | 0 | 19 | 0 | 0 | 0 | |||
| 52.0 | 18 | 6 | 5 | 3.9 ) | 17 | 12 | 30 | 2 | 1 | 1 | 0 | 0 | 0 | 9 | 30 | 8 | 1 | 1 | 0 | 0 | 0 | 0 | 8.5 | 1 | 24 | 17 | 0 | 0 | |
| 22.2 | 8 | 12 | 2 | 2.8 | 251 | 40 | 10 | 20 | 18 | 7 | 5 | 0 | 0 | 63 | 12 | 31 | 31 | 31 | 30 | 23 | 6 | 0 | 9.4 | 0 | 28 | 30 | 0 | 0 | |