月ごとの値
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寿都（後志地方) 1974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 | ||||||||||||||||||||||||||||
| 59.8 | 21 | 5 | 7 | 4.5 | 107 | 20 | 05 | 10 | 6 | 5 | 1 | 0 | 0 | 74 | 19 | 31 | 31 | 31 | 31 | 31 | 20 | 0 | 8.8 | 0 | 22 | 29 | 3 | 0 | |
| 61.9 | 21 | 4 | 4 | 6.3 | 131 | 38 | 22 | 9 | 8 | 5 | 1 | 0 | 0 | 116 | 24 | 28 | 28 | 28 | 28 | 28 | 28 | 7 | 8.8 | 1 | 21 | 26 | 0 | 0 | |
| 161.9 | 44 | 1 | 14 | 12.1 | 29 | 16 | 22 | 3 | 1 | 1 | 0 | 0 | 0 | 108 | 01 | 31 | 31 | 31 | 31 | 31 | 31 | 3 | 7.4 | 1 | 14 | 21 | 0 | 1 | |
| 170.7 | 43 | 5 | 15 | 13.9 | 1 | 1 | 02 | 0 | 0 | 0 | 0 | 0 | 0 | 39 | 01 | 6 | 6 | 5 | 5 | 4 | 0 | 0 | 7.1 | 0 | 10 | 3 | 0 | 0 | |
| 228.9 | 51 | 2 | 20 | 18.2 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.6 | 3 | 13 | 0 | 1 | 0 | |||
| 144.8 | 32 | 4 | 11 | 15.8 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.7 | 0 | 22 | 0 | 2 | 1 | |||
| 187.4 | 40 | 3 | 16 | 17.6 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.8 | 0 | 17 | 0 | 0 | 0 | |||
| 174.3 | 41 | 4 | 16 | 14.4 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.5 | 2 | 16 | 0 | 0 | 3 | |||
| 185.4 | 49 | 0 | 19 | 13.1 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.3 | 3 | 10 | 0 | 0 | 2 | |||
| 132.0 | 39 | 4 | 12 | 7.9 | 0 | 0 | 31* | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.0 | 2 | 9 | 0 | 0 | 2 | ||
| 71.4 | 24 | 7 | 9 | 4.5 | 17 | 6 | 14 | 3 | 1 | 0 | 0 | 0 | 0 | 14 | 14 | 11 | 10 | 6 | 4 | 0 | 0 | 0 | 8.5 | 0 | 19 | 14 | 0 | 0 | |
| 30.4 | 11 | 9 | 2 | 3.0 | 97 | 17 | 15 | 10 | 8 | 3 | 0 | 0 | 0 | 39 | 30* | 31 | 31 | 29 | 28 | 18 | 0 | 0 | 9.8 | 0 | 29 | 30 | 0 | 0 | |