半旬ごとの値
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前橋（群馬県) 1987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 | 26.7 | 55 | 0 | 3 | 7.7 | 0 | 0 | 05* | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 05* | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 4.3 | 1 | 0 | 3 | 0 | 0 | |
| 第2半旬 | 6～10 | 35.7 | 73 | 0 | 5 | 9.6 | 5 | 5 | 06 | 1 | 1 | 0 | 0 | 0 | 0 | 6 | 06 | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 3.1 | 2 | 0 | 2 | 0 | 0 | |
| 第3半旬 | 11～15 | 36.4 | 74 | 0 | 4 | 9.9 | 4 | 3 | 13 | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 13 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 2.6 | 3 | 0 | 2 | 0 | 0 | |
| 第4半旬 | 16～20 | 39.3 | 79 | 0 | 5 | 10.5 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3.2 | 0 | 0 | 0 | 0 | 0 | |||
| 第5半旬 | 21～25 | 31.9 | 63 | 0 | 3 | 9.9 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.7 | 2 | 1 | 0 | 0 | 0 | |||
| 第6半旬 | 26～31 | 51.5 | 84 | 0 | 6 | 11.6 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.9 | 5 | 0 | 0 | 0 | 0 | |||
| 第1半旬 | 1～ 5 | 24.0 | 46 | 1 | 2 | 9.0 | 16 | 12 | 03 | 2 | 1 | 1 | 0 | 0 | 0 | 16 | 03 | 4 | 4 | 2 | 1 | 0 | 0 | 0 | 5.5 | 1 | 2 | 3 | 0 | 0 | |
| 第2半旬 | 6～10 | 46.1 | 87 | 0 | 5 | 12.8 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.1 | 4 | 0 | 0 | 0 | 0 | |||
| 第3半旬 | 11～15 | 31.1 | 58 | 0 | 3 | 10.6 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.6 | 1 | 1 | 0 | 0 | 0 | |||
| 第4半旬 | 16～20 | 28.1 | 52 | 0 | 3 | 11.3 | 7 | 7 | 18 | 1 | 1 | 0 | 0 | 0 | 0 | 7 | 18 | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 5.6 | 1 | 1 | 2 | 0 | 0 | |
| 第5半旬 | 21～25 | 30.5 | 55 | 1 | 4 | 11.5 | 0 | 0 | 25* | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 23* | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 5.9 | 0 | 0 | 2 | 0 | 0 | |
| 第6半旬 | 26～28 | 24.2 | 72 | 0 | 3 | 14.6 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3.7 | 0 | 0 | 0 | 0 | 0 | |||
| 第1半旬 | 1～ 5 | 40.3 | 71 | 0 | 5 | 14.5 | 0 | 0 | 03* | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3.0 | 2 | 0 | 2 | 0 | 0 | ||
| 第2半旬 | 6～10 | 35.1 | 61 | 0 | 4 | 14.2 | 13 | 8 | 07 | 2 | 2 | 0 | 0 | 0 | 0 | 13 | 08 | 2 | 2 | 2 | 1 | 0 | 0 | 0 | 5.8 | 0 | 0 | 2 | 0 | 0 | |
| 第3半旬 | 11～15 | 25.0 | 42 | 1 | 2 | 12.0 | 0 | 0 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 6.9 | 0 | 1 | 1 | 0 | 0 | |
| 第4半旬 | 16～20 | 32.1 | 54 | 0 | 3 | 14.3 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.7 | 1 | 2 | 0 | 0 | 0 | |||
| 第5半旬 | 21～25 | 22.4 | 37 | 1 | 2 | 11.1 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.9 | 0 | 2 | 0 | 0 | 0 | |||
| 第6半旬 | 26～31 | 50.2 | 68 | 0 | 5 | 18.1 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.2 | 1 | 1 | 0 | 0 | 0 | |||
| 第1半旬 | 1～ 5 | 42.4 | 67 | 0 | 4 | 18.4 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.0 | 1 | 1 | 0 | 0 | 0 | |||
| 第2半旬 | 6～10 | 23.2 | 36 | 1 | 2 | 12.1 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.7 | 0 | 3 | 0 | 0 | 0 | |||
| 第3半旬 | 11～15 | 49.0 | 76 | 0 | 4 | 21.0 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.1 | 0 | 0 | 0 | 0 | 0 | |||
| 第4半旬 | 16～20 | 48.4 | 74 | 0 | 5 | 20.7 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3.5 | 1 | 0 | 0 | 0 | 0 | |||
| 第5半旬 | 21～25 | 45.9 | 69 | 0 | 5 | 20.8 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.3 | 0 | 1 | 0 | 0 | 1 | |||
| 第6半旬 | 26～30 | 46.5 | 69 | 1 | 4 | 18.9 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.3 | 1 | 2 | 0 | 0 | 0 | |||
| 第1半旬 | 1～ 5 | 31.7 | 46 | 0 | 3 | 17.8 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.6 | 0 | 2 | 0 | 0 | 0 | |||
| 第2半旬 | 6～10 | 59.9 | 87 | 0 | 5 | 24.6 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3.2 | 1 | 0 | 0 | 0 | 0 | |||
| 第3半旬 | 11～15 | 10.3 | 15 | 1 | 0 | 10.7 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.0 | 0 | 4 | 0 | 0 | 0 | |||
| 第4半旬 | 16～20 | 28.4 | 40 | 1 | 3 | 16.0 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.7 | 0 | 4 | 0 | 0 | 0 | |||
| 第5半旬 | 21～25 | 31.0 | 44 | 1 | 2 | 16.2 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.8 | 1 | 2 | 0 | 0 | 1 | |||
| 第6半旬 | 26～31 | 42.7 | 50 | 0 | 3 | 19.9 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.5 | 0 | 3 | 0 | 0 | 0 | |||
| 第1半旬 | 1～ 5 | 39.9 | 55 | 0 | 3 | 19.0 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.4 | 0 | 2 | 0 | 0 | 0 | |||
| 第2半旬 | 6～10 | 37.0 | 51 | 1 | 3 | 16.7 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.2 | 1 | 2 | 0 | 0 | 0 | |||
| 第3半旬 | 11～15 | 26.0 | 36 | 1 | 2 | 14.8 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.6 | 0 | 3 | 0 | 0 | 0 | |||
| 第4半旬 | 16～20 | 41.6 | 57 | 1 | 4 | 18.4 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.9 | 0 | 1 | 0 | 0 | 0 | |||
| 第5半旬 | 21～25 | 41.1 | 56 | 1 | 3 | 19.6 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.7 | 1 | 2 | 0 | 0 | 0 | |||
| 第6半旬 | 26～30 | 4.8 | 7 | 4 | 0 | 8.8 | -- | -- | 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 | 28.8 | 40 | 1 | 3 | 15.2 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.6 | 0 | 3 | 0 | 0 | 0 | |||
| 第2半旬 | 6～10 | 29.2 | 40 | 1 | 3 | 17.3 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.1 | 0 | 3 | 0 | 1 | 1 | |||
| 第3半旬 | 11～15 | 16.5 | 23 | 1 | 1 | 13.5 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.4 | 0 | 5 | 0 | 0 | 2 | |||
| 第4半旬 | 16～20 | 13.8 | 19 | 1 | 1 | 11.7 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.5 | 0 | 3 | 0 | 0 | 0 | |||
| 第5半旬 | 21～25 | 36.6 | 52 | 1 | 3 | 18.0 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.7 | 1 | 1 | 0 | 1 | 1 | |||
| 第6半旬 | 26～31 | 41.1 | 49 | 0 | 4 | 18.9 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.8 | 0 | 3 | 0 | 0 | 1 | |||
| 第1半旬 | 1～ 5 | 2.7 | 4 | 2 | 0 | 8.0 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.3 | 0 | 3 | 0 | 0 | 0 | |||
| 第2半旬 | 6～10 | 23.8 | 35 | 1 | 2 | 15.4 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.4 | 0 | 3 | 0 | 0 | 1 | |||
| 第3半旬 | 11～15 | 39.5 | 58 | 0 | 4 | 19.2 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.7 | 0 | 1 | 0 | 0 | 2 | |||
| 第4半旬 | 16～20 | 30.3 | 45 | 0 | 4 | 15.7 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.5 | 0 | 3 | 0 | 0 | 3 | |||
| 第5半旬 | 21～25 | 15.3 | 23 | 1 | 1 | 9.8 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.1 | 0 | 4 | 0 | 0 | 0 | |||
| 第6半旬 | 26～31 | 47.0 | 60 | 0 | 5 | 17.2 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.9 | 1 | 2 | 0 | 0 | 1 | |||
| 第1半旬 | 1～ 5 | 15.5 | 24 | 2 | 1 | 10.0 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.8 | 0 | 4 | 0 | 0 | 0 | |||
| 第2半旬 | 6～10 | 21.6 | 34 | 0 | 3 | 12.9 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.7 | 0 | 4 | 0 | 0 | 3 | |||
| 第3半旬 | 11～15 | 19.8 | 32 | 0 | 2 | 12.1 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.7 | 0 | 3 | 0 | 0 | 0 | |||
| 第4半旬 | 16～20 | 14.2 | 23 | 1 | 1 | 9.7 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.9 | 0 | 4 | 0 | 0 | 0 | |||
| 第5半旬 | 21～25 | 29.7 | 49 | 1 | 3 | 12.3 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.3 | 0 | 2 | 0 | 0 | 0 | |||
| 第6半旬 | 26～30 | 11.9 | 20 | 1 | 1 | 8.8 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.0 | 0 | 4 | 0 | 0 | 0 | |||
| 第1半旬 | 1～ 5 | 37.7 | 64 | 0 | 4 | 15.4 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.8 | 2 | 2 | 0 | 0 | 0 | |||
| 第2半旬 | 6～10 | 25.2 | 44 | 1 | 2 | 10.6 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.9 | 0 | 3 | 0 | 0 | 0 | |||
| 第3半旬 | 11～15 | 26.1 | 46 | 1 | 3 | 11.4 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.5 | 0 | 1 | 0 | 0 | 0 | |||
| 第4半旬 | 16～20 | 23.9 | 43 | 1 | 2 | 9.6 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.7 | 0 | 2 | 0 | 0 | 0 | |||
| 第5半旬 | 21～25 | 22.8 | 42 | 1 | 2 | 9.5 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.9 | 0 | 2 | 0 | 0 | 0 | |||
| 第6半旬 | 26～31 | 30.3 | 47 | 0 | 3 | 9.7 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.1 | 1 | 1 | 0 | 0 | 0 | |||
| 第1半旬 | 1～ 5 | 9.8 | 18 | 2 | 1 | 5.4 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.2 | 0 | 4 | 0 | 1 | 0 | |||
| 第2半旬 | 6～10 | 33.2 | 64 | 0 | 3 | 10.2 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.3 | 1 | 0 | 0 | 0 | 0 | |||
| 第3半旬 | 11～15 | 19.8 | 39 | 1 | 2 | 7.4 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.1 | 1 | 3 | 0 | 0 | 0 | |||
| 第4半旬 | 16～20 | 43.7 | 86 | 0 | 5 | 11.2 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3.0 | 1 | 0 | 0 | 0 | 0 | |||
| 第5半旬 | 21～25 | 46.0 | 92 | 0 | 5 | 10.8 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.8 | 3 | 0 | 0 | 0 | 0 | |||
| 第6半旬 | 26～30 | 21.3 | 43 | 1 | 3 | 6.7 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.4 | 0 | 2 | 0 | 0 | 0 | |||
| 第1半旬 | 1～ 5 | 24.0 | 49 | 0 | 3 | 7.9 | 0 | 0 | 02 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 02 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 6.0 | 0 | 1 | 1 | 0 | 0 | |
| 第2半旬 | 6～10 | 27.2 | 56 | 0 | 3 | 7.2 | 0 | 0 | 06 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 06 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 4.4 | 2 | 0 | 1 | 0 | 0 | |
| 第3半旬 | 11～15 | 16.5 | 34 | 3 | 2 | 5.0 | 0 | 0 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.5 | 0 | 3 | 1 | 0 | 0 | ||
| 第4半旬 | 16～20 | 39.6 | 82 | 0 | 5 | 9.1 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.3 | 2 | 0 | 0 | 0 | 0 | |||
| 第5半旬 | 21～25 | 42.6 | 89 | 0 | 5 | 9.0 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 4 | 0 | 0 | 0 | 0 | |||
| 第6半旬 | 26～31 | 50.1 | 87 | 0 | 6 | 8.8 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.4 | 5 | 0 | 0 | 0 | 0 | |||