月ごとの値
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水戸（茨城県) 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 | ||||||||||||||||||||||||||||
| 205.2 | 67 | 1 | 25 | 0 | 0 | 07 | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3.6 | 12 | 4 | 0 | 3 | 0 | |||
| 192.7 | 64 | 2 | 21 | 2 | 2 | 19 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 19 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 3.7 | 9 | 4 | 4 | 2 | 0 | ||
| 138.3 | 37 | 7 | 14 | 0 | 0 | 09 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 09 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 7.2 | 1 | 11 | 1 | 1 | 1 | ||
| 151.6 | 39 | 5 | 13 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.2 | 2 | 13 | 0 | 4 | 3 | ||||
| 193.7 | 45 | 5 | 16 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.3 | 1 | 13 | 0 | 2 | 1 | ||||
| 142.8 | 33 | 9 | 12 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.3 | 1 | 21 | 0 | 2 | 1 | ||||
| 169.5 | 38 | 5 | 12 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.9 | 2 | 14 | 0 | 3 | 2 | ||||
| 199.8 | 48 | 1 | 20 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.6 | 2 | 10 | 0 | 2 | 2 | ||||
| 153.6 | 41 | 3 | 17 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.6 | 2 | 12 | 0 | 1 | 3 | ||||
| 156.3 | 45 | 6 | 18 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.4 | 3 | 12 | 0 | 3 | 1 | ||||
| 157.0 | 51 | 4 | 21 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.4 | 4 | 9 | 0 | 3 | 0 | ||||
| 186.7 | 62 | 2 | 24 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3.4 | 10 | 2 | 0 | 0 | 0 | ||||