半旬ごとの値
 |  |
 |  |
 |  |  |  |  |
 |  |  |  |  |  |
 |  |  |  |  |
水戸（茨城県) 1984年（半旬ごとの値） 詳細（日照・雪・その他）
| 月 | 半旬 | 日～日 | 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 | ||||||||||||||||||||||||||||||
| 第1半旬 | 1～ 5 | 30.2 | 62 | 0 | 4 | 0 | 0 | 05 | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3.8 | 2 | 0 | 1 | 0 | 0 | |||
| 第2半旬 | 6～10 | 41.2 | 84 | 0 | 5 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.7 | 4 | 0 | 0 | 0 | 0 | ||||
| 第3半旬 | 11～15 | 34.3 | 70 | 0 | 4 | 0 | 0 | 14 | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.3 | 3 | 0 | 1 | 0 | 0 | |||
| 第4半旬 | 16～20 | 32.6 | 66 | 1 | 4 | 8 | 8 | 19 | 1 | 1 | 0 | 0 | 0 | 0 | 8 | 20* | 2 | 2 | 2 | 0 | 0 | 0 | 0 | 3.5 | 2 | 1 | 1 | 0 | 0 | ||
| 第5半旬 | 21～25 | 24.5 | 49 | 1 | 3 | 0 | 0 | 22* | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 21 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 6.4 | 0 | 2 | 2 | 0 | 0 | ||
| 第6半旬 | 26～31 | 41.4 | 68 | 1 | 5 | 5 | 3 | 31 | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 31 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 4.5 | 0 | 1 | 2 | 0 | 0 | ||
| 第1半旬 | 1～ 5 | 38.3 | 74 | 0 | 5 | 2 | 2 | 01 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 01 | 2 | 2 | 1 | 0 | 0 | 0 | 0 | 3.8 | 0 | 0 | 2 | 0 | 0 | ||
| 第2半旬 | 6～10 | 37.3 | 71 | 0 | 5 | 0 | 0 | 06 | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3.1 | 1 | 1 | 1 | 0 | 0 | |||
| 第3半旬 | 11～15 | 22.2 | 41 | 1 | 2 | 11 | 9 | 13 | 1 | 1 | 0 | 0 | 0 | 0 | 11 | 13 | 4 | 4 | 1 | 1 | 0 | 0 | 0 | 7.0 | 0 | 2 | 4 | 0 | 0 | ||
| 第4半旬 | 16～20 | 35.1 | 64 | 1 | 4 | 29 | 15 | 17 | 2 | 2 | 2 | 0 | 0 | 0 | 25 | 18 | 4 | 4 | 4 | 3 | 1 | 0 | 0 | 4.0 | 2 | 1 | 2 | 0 | 0 | ||
| 第5半旬 | 21～25 | 26.9 | 49 | 1 | 3 | 1 | 1 | 23 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 21 | 4 | 3 | 1 | 0 | 0 | 0 | 0 | 7.1 | 0 | 1 | 1 | 1 | 0 | ||
| 第6半旬 | 26～29 | 28.1 | 62 | 1 | 3 | 0 | 0 | 28* | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 26 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 4.1 | 1 | 1 | 2 | 0 | 0 | ||
| 第1半旬 | 1～ 5 | 40.4 | 71 | 0 | 5 | 3 | 1 | 05* | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 05* | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 4.2 | 1 | 0 | 3 | 0 | 0 | ||
| 第2半旬 | 6～10 | 34.8 | 60 | 0 | 4 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.0 | 0 | 2 | 0 | 0 | 0 | ||||
| 第3半旬 | 11～15 | 35.5 | 60 | 1 | 4 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.6 | 1 | 2 | 0 | 0 | 0 | ||||
| 第4半旬 | 16～20 | 13.6 | 23 | 3 | 1 | 8 | 5 | 20 | 2 | 1 | 0 | 0 | 0 | 0 | 7 | 20 | 2 | 2 | 1 | 0 | 0 | 0 | 0 | 6.9 | 1 | 2 | 3 | 0 | 1 | ||
| 第5半旬 | 21～25 | 38.6 | 63 | 0 | 4 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3.6 | 1 | 1 | 0 | 1 | 0 | ||||
| 第6半旬 | 26～31 | 47.5 | 64 | 0 | 5 | 0 | 0 | 31 | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.8 | 0 | 0 | 1 | 1 | 0 | |||
| 第1半旬 | 1～ 5 | 21.1 | 33 | 2 | 2 | 2 | 2 | 01 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 01 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 8.0 | 0 | 3 | 1 | 0 | 0 | ||
| 第2半旬 | 6～10 | 35.0 | 55 | 0 | 4 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.3 | 0 | 1 | 0 | 0 | 0 | ||||
| 第3半旬 | 11～15 | 43.4 | 67 | 0 | 4 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.7 | 0 | 2 | 0 | 1 | 0 | ||||
| 第4半旬 | 16～20 | 16.5 | 25 | 2 | 2 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.3 | 0 | 3 | 0 | 2 | 0 | ||||
| 第5半旬 | 21～25 | 32.5 | 49 | 1 | 3 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.9 | 1 | 1 | 0 | 1 | 0 | ||||
| 第6半旬 | 26～30 | 43.1 | 64 | 1 | 4 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.2 | 0 | 1 | 0 | 0 | 0 | ||||
| 第1半旬 | 1～ 5 | 46.5 | 68 | 0 | 5 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.6 | 1 | 2 | 0 | 0 | 0 | ||||
| 第2半旬 | 6～10 | 55.7 | 81 | 0 | 5 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.1 | 3 | 0 | 0 | 1 | 1 | ||||
| 第3半旬 | 11～15 | 11.2 | 16 | 1 | 0 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.2 | 0 | 4 | 0 | 0 | 0 | ||||
| 第4半旬 | 16～20 | 37.0 | 52 | 1 | 4 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.8 | 0 | 3 | 0 | 0 | 0 | ||||
| 第5半旬 | 21～25 | 22.0 | 31 | 1 | 2 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.7 | 0 | 3 | 0 | 0 | 0 | ||||
| 第6半旬 | 26～31 | 31.9 | 37 | 0 | 3 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.7 | 0 | 4 | 0 | 0 | 1 | ||||
| 第1半旬 | 1～ 5 | 31.7 | 44 | 1 | 3 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.5 | 0 | 1 | 0 | 0 | 0 | ||||
| 第2半旬 | 6～10 | 34.0 | 47 | 1 | 3 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.7 | 0 | 2 | 0 | 1 | 0 | ||||
| 第3半旬 | 11～15 | 7.4 | 10 | 2 | 0 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.7 | 0 | 5 | 0 | 1 | 0 | ||||
| 第4半旬 | 16～20 | 16.7 | 23 | 0 | 0 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.4 | 0 | 3 | 0 | 1 | 0 | ||||
| 第5半旬 | 21～25 | 1.4 | 2 | 4 | 0 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10.0 | 0 | 5 | 0 | 1 | 0 | ||||
| 第6半旬 | 26～30 | 13.5 | 19 | 2 | 1 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.7 | 0 | 4 | 0 | 0 | 0 | ||||
| 第1半旬 | 1～ 5 | 37.4 | 51 | 0 | 4 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.4 | 0 | 1 | 0 | 3 | 2 | ||||
| 第2半旬 | 6～10 | 10.0 | 14 | 2 | 0 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10.0 | 0 | 5 | 0 | 2 | 0 | ||||
| 第3半旬 | 11～15 | 11.0 | 15 | 0 | 0 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.8 | 0 | 3 | 0 | 1 | 1 | ||||
| 第4半旬 | 16～20 | 34.5 | 48 | 0 | 3 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.8 | 0 | 3 | 0 | 3 | 0 | ||||
| 第5半旬 | 21～25 | 36.7 | 52 | 0 | 4 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.7 | 0 | 2 | 0 | 2 | 0 | ||||
| 第6半旬 | 26～31 | 47.2 | 56 | 0 | 5 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.8 | 0 | 2 | 0 | 3 | 0 | ||||
| 第1半旬 | 1～ 5 | 46.1 | 66 | 0 | 5 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.0 | 0 | 2 | 0 | 0 | 1 | ||||
| 第2半旬 | 6～10 | 42.5 | 62 | 0 | 5 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.8 | 1 | 1 | 0 | 0 | 0 | ||||
| 第3半旬 | 11～15 | 42.7 | 63 | 0 | 4 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.6 | 0 | 1 | 0 | 0 | 0 | ||||
| 第4半旬 | 16～20 | 53.7 | 80 | 0 | 5 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.8 | 0 | 0 | 0 | 1 | 0 | ||||
| 第5半旬 | 21～25 | 32.4 | 49 | 0 | 4 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.1 | 0 | 2 | 0 | 0 | 0 | ||||
| 第6半旬 | 26～31 | 40.4 | 52 | 1 | 4 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.3 | 0 | 2 | 0 | 0 | 0 | ||||
| 第1半旬 | 1～ 5 | 33.9 | 53 | 0 | 3 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.7 | 0 | 3 | 0 | 0 | 1 | ||||
| 第2半旬 | 6～10 | 32.5 | 51 | 0 | 3 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.9 | 0 | 1 | 0 | 0 | 0 | ||||
| 第3半旬 | 11～15 | 9.4 | 15 | 1 | 1 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.7 | 0 | 5 | 0 | 0 | 0 | ||||
| 第4半旬 | 16～20 | 10.2 | 17 | 2 | 1 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.3 | 0 | 4 | 0 | 0 | 0 | ||||
| 第5半旬 | 21～25 | 44.8 | 74 | 0 | 5 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3.4 | 2 | 1 | 0 | 0 | 0 | ||||
| 第6半旬 | 26～30 | 33.2 | 56 | 0 | 4 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.8 | 0 | 1 | 0 | 0 | 0 | ||||
| 第1半旬 | 1～ 5 | 25.0 | 43 | 1 | 3 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.1 | 0 | 2 | 0 | 0 | 0 | ||||
| 第2半旬 | 6～10 | 14.1 | 24 | 1 | 1 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.3 | 0 | 3 | 0 | 0 | 0 | ||||
| 第3半旬 | 11～15 | 18.9 | 33 | 2 | 2 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.6 | 0 | 2 | 0 | 0 | 0 | ||||
| 第4半旬 | 16～20 | 14.1 | 25 | 2 | 2 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.4 | 0 | 3 | 0 | 0 | 0 | ||||
| 第5半旬 | 21～25 | 25.5 | 46 | 0 | 2 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.7 | 0 | 0 | 0 | 2 | 0 | ||||
| 第6半旬 | 26～31 | 33.6 | 52 | 0 | 4 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.9 | 0 | 0 | 0 | 1 | 0 | ||||
| 第1半旬 | 1～ 5 | 35.0 | 66 | 0 | 4 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.7 | 2 | 1 | 0 | 0 | 0 | ||||
| 第2半旬 | 6～10 | 34.5 | 66 | 0 | 4 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.6 | 0 | 1 | 0 | 1 | 0 | ||||
| 第3半旬 | 11～15 | 15.6 | 30 | 2 | 2 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.0 | 0 | 2 | 0 | 0 | 0 | ||||
| 第4半旬 | 16～20 | 18.8 | 37 | 2 | 3 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.4 | 0 | 2 | 0 | 0 | 0 | ||||
| 第5半旬 | 21～25 | 22.8 | 46 | 1 | 3 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.9 | 0 | 1 | 0 | 0 | 0 | ||||
| 第6半旬 | 26～30 | 41.4 | 84 | 0 | 5 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.7 | 3 | 0 | 0 | 0 | 0 | ||||
| 第1半旬 | 1～ 5 | 32.6 | 67 | 0 | 4 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.8 | 2 | 0 | 0 | 2 | 0 | ||||
| 第2半旬 | 6～10 | 27.5 | 57 | 0 | 4 | 0 | 0 | 07* | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.4 | 0 | 0 | 0 | 0 | 0 | |||
| 第3半旬 | 11～15 | 20.5 | 42 | 1 | 3 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.1 | 0 | 1 | 0 | 1 | 0 | ||||
| 第4半旬 | 16～20 | 26.7 | 55 | 0 | 3 | 0 | 0 | 17 | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.9 | 0 | 0 | 2 | 2 | 0 | |||
| 第5半旬 | 21～25 | 28.0 | 58 | 0 | 4 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.7 | 2 | 0 | 0 | 0 | 0 | ||||
| 第6半旬 | 26～31 | 48.5 | 84 | 0 | 6 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.1 | 2 | 0 | 0 | 0 | 0 | ||||