月ごとの値
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下関（山口県) 1987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 | ||||||||||||||||||||||||||||
| 125.4 | 40 | 4 | 15 | 7.9 | 6 | 5 | 13 | 1 | 1 | 0 | 0 | 0 | 0 | 4 | 13 | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 7.1 | 0 | 8 | 5 | 0 | 2 | |
| 132.5 | 43 | 3 | 15 | 9.9 | 2 | 1 | 27* | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 28* | 4 | 3 | 0 | 0 | 0 | 0 | 0 | 6.4 | 3 | 10 | 7 | 0 | 3 | |
| 119.9 | 32 | 6 | 11 | 10.7 | 5 | 5 | 02 | 1 | 1 | 0 | 0 | 0 | 0 | 5 | 02 | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 7.3 | 2 | 14 | 4 | 0 | 1 | |
| 189.6 | 49 | 6 | 18 | 16.1 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.6 | 1 | 13 | 0 | 2 | 1 | |||
| 207.0 | 48 | 6 | 18 | 17.5 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.1 | 4 | 17 | 0 | 0 | 0 | |||
| 208.2 | 48 | 6 | 18 | 18.8 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.1 | 6 | 9 | 0 | 3 | 1 | |||
| 133.8 | 31 | 4 | 11 | 14.3 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.2 | 0 | 17 | 0 | 1 | 3 | |||
| 128.9 ) | 33 ) | 2 ) | 13 ) | 14.1 ) | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.7 | 0 | 16 | 0 | 0 | 7 | |||
| 184.6 | 50 | 3 | 19 | 14.9 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.2 | 3 | 11 | 0 | 0 | 0 | |||
| 181.1 | 52 | 4 | 18 | 11.8 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.8 | 3 | 10 | 0 | 1 | 2 | |||
| 146.5 | 47 | 4 | 16 | 8.5 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.3 | 7 | 10 | 0 | 0 | 1 | |||
| 150.5 | 49 | 2 | 17 | 7.4 | 0 | 0 | 06* | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.9 | 6 | 6 | 2 | 0 | 0 | ||