月ごとの値
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江差（檜山地方) 1999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 | ||||||||||||||||||||||||||||
| 32.1 | 11 | 11 | 3 | 68 | 13 | 02 | 10 | 4 | 1 | 0 | 0 | 0 | 26 | 14* | 31 | 31 | 31 | 25 | 6 | 0 | 0 | 9.4 | 0 | 27 | 29 | 0 | 2 | ||
| 44.8 | 15 | 1 | 4 | 44 | 11 | 14 | 5 | 4 | 1 | 0 | 0 | 0 | 39 | 14 | 28 | 26 | 22 | 15 | 11 | 0 | 0 | 9.5 | 0 | 25 | 24 | 0 | 0 | ||
| 90.0 | 24 | 3 | 6 | 22 | 17 | 22 | 1 | 1 | 1 | 0 | 0 | 0 | 18 | 22 | 9 | 5 | 3 | 1 | 0 | 0 | 0 | 8.4 | 0 | 18 | 19 | 0 | 0 | ||
| 165.2 | 41 | 5 | 16 | 3 | 2 | 07 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 07* | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 7.0 | 2 | 12 | 6 | 1 | 1 | ||
| 158.6 | 35 | 2 | 13 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.1 | 3 | 11 | 0 | 0 | 0 | ||||
| 197.7 | 44 | 7 | 18 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.4 | 0 | 12 | 0 | 1 | 0 | ||||
| 136.0 | 30 | 9 | 11 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.7 | 3 | 19 | 0 | 0 | 1 | ||||
| 217.9 | 51 | 3 | 17 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.5 | 4 | 12 | 0 | 0 | 2 | ||||
| 152.0 | 41 | 4 | 15 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.4 | 1 | 13 | 0 | 0 | 0 | ||||
| 121.5 | 35 | 5 | 11 | 0 | 0 | 17 | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.2 | 1 | 13 | 1 | 0 | 3 | |||
| 75.0 | 25 | 7 | 8 | 2 | 1 | 27* | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 29 | 6 | 4 | 1 | 0 | 0 | 0 | 0 | 8.0 | 0 | 18 | 7 | 0 | 1 | ||
| 24.6 | 9 | 9 | 2 | 38 | 9 | 07 | 6 | 4 | 0 | 0 | 0 | 0 | 18 | 19 | 22 | 20 | 16 | 8 | 0 | 0 | 0 | 9.5 | 0 | 28 | 25 | 0 | 4 | ||