月ごとの値
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下関（山口県) 1978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 | ||||||||||||||||||||||||||||
| 109.7 | 35 | 3 | 11 | 6.1 | 0 | 0 | 31* | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 8.1 | 0 | 19 | 12 | 1 | 1 | |
| 135.7 | 44 | 1 | 15 | 9.6 | 13 | 4 | 17 | 2 | 0 | 0 | 0 | 0 | 0 | 4 | 18 | 7 | 6 | 0 | 0 | 0 | 0 | 0 | 7.4 | 0 | 10 | 10 | 0 | 0 | |
| 235.7 | 64 | 3 | 26 | 15.5 | 0 | 0 | 23* | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.0 | 2 | 8 | 3 | 1 | 0 | ||
| 226.2 | 58 | 3 | 22 | 17.8 | 0 | 0 | 03 | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.7 | 5 | 9 | 0 | 1 | 1 | ||
| 254.0 | 59 | 3 | 22 | 19.3 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.2 | 5 | 9 | 0 | 0 | 0 | |||
| 208.7 | 49 | 2 | 18 | 18.5 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.2 | 3 | 18 | 0 | 2 | 1 | |||
| 311.9 | 71 | 0 | 29 | 22.3 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.2 | 7 | 5 | 0 | 0 | 2 | |||
| 263.7 | 64 | 0 | 26 | 19.6 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.5 | 5 | 7 | 0 | 0 | 4 | |||
| 178.9 | 48 | 2 | 19 | 14.1 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.9 | 1 | 12 | 0 | 0 | 1 | |||
| 203.4 | 58 | 4 | 23 | 12.2 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.4 | 3 | 7 | 0 | 0 | 2 | |||
| 191.7 | 62 | 2 | 22 | 10.0 | 0 | 0 | 29* | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.2 | 3 | 4 | 1 | 0 | 0 | ||
| 152.2 | 50 | 3 | 19 | 7.3 ) | 0 | 0 | 30* | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.8 | 2 | 5 | 0 | 0 | 1 | ||