月ごとの値
 |  |
 |  |
 |  |  |  |  |  |  |
 |  |  |  |  |  |
 |  |  |  |  |
水戸（茨城県) 1998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 | ||||||||||||||||||||||||||||
| 169.3 | 55 | 5 | 22 | 22 | 10 | 15 | 4 | 2 | 1 | 0 | 0 | 0 | 10 | 15 | 8 | 8 | 3 | 1 | 0 | 0 | 0 | 4.6 | 7 | 7 | 6 | 2 | 0 | ||
| 159.0 | 53 | 3 | 17 | 4 | 4 | 15 | 1 | 0 | 0 | 0 | 0 | 0 | 4 | 15 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 5.9 | 3 | 7 | 4 | 5 | 0 | ||
| 193.6 ) | 54 ) | 5 ) | 22 ) | 0 | 0 | 15* | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.0 | 5 | 9 | 4 | 2 | 1 | |||
| 118.2 | 30 | 12 | 10 | 0 | 0 | 02 | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.1 | 1 | 19 | 0 | 2 | 0 | |||
| 145.6 | 33 | 5 | 11 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.2 | 2 | 20 | 0 | 2 | 2 | ||||
| 88.7 | 20 | 10 | 6 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.2 | 0 | 24 | 0 | 5 | 0 | ||||
| 91.7 | 21 | 5 | 6 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.0 | 0 | 23 | 0 | 4 | 7 | ||||
| 79.8 ) | 19 ) | 8 | 4 ) | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.4 | 0 | 28 | 0 | 4 | 11 | ||||
| 95.4 | 26 | 7 | 9 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.1 | 1 | 19 | 0 | 5 | 2 | ||||
| 118.3 | 34 | 7 | 12 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.5 | 2 | 16 | 0 | 2 | 1 | ||||
| 167.0 | 54 | 2 | 22 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.8 | 6 | 5 | 0 | 3 | 0 | ||||
| 169.9 | 57 | 5 | 23 | 0 | 0 | 03* | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.7 | 7 | 5 | 0 | 3 | 0 | |||