月ごとの値
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前橋（群馬県) 1987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 | ||||||||||||||||||||||||||||
| 221.5 | 72 | 0 | 26 | 9.9 | 9 | 5 | 06 | 2 | 1 | 0 | 0 | 0 | 0 | 6 | 06 | 6 | 3 | 1 | 0 | 0 | 0 | 0 | 3.0 | 13 | 1 | 7 | 0 | 0 | |
| 184.0 | 61 | 2 | 20 | 11.4 | 23 | 12 | 03 | 3 | 2 | 1 | 0 | 0 | 0 | 16 | 03 | 8 | 5 | 3 | 1 | 0 | 0 | 0 | 4.6 | 7 | 4 | 7 | 0 | 0 | |
| 205.1 | 56 | 2 | 21 | 14.2 | 13 | 8 | 07 | 2 | 2 | 0 | 0 | 0 | 0 | 13 | 08 | 3 | 2 | 2 | 1 | 0 | 0 | 0 | 5.6 | 4 | 6 | 5 | 0 | 0 | |
| 255.4 | 65 | 2 | 24 | 18.7 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.7 | 3 | 7 | 0 | 0 | 1 | |||
| 204.0 | 47 | 3 | 16 | 17.6 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.1 | 2 | 15 | 0 | 0 | 1 | |||
| 190.4 | 44 | 8 | 15 | 16.2 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.1 | 2 | 14 | 0 | 0 | 0 | |||
| 166.0 | 37 | 5 | 15 | 15.9 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.0 | 1 | 18 | 0 | 2 | 5 | |||
| 158.6 | 38 | 4 | 16 | 14.3 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.9 | 1 | 16 | 0 | 0 | 7 | |||
| 112.7 | 30 | 5 | 11 | 11.0 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.4 | 0 | 21 | 0 | 0 | 3 | |||
| 166.0 | 48 | 4 | 16 | 11.0 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.4 | 3 | 11 | 0 | 0 | 0 | |||
| 173.8 | 57 | 4 | 19 | 8.6 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.5 | 6 | 9 | 0 | 1 | 0 | |||
| 200.0 | 67 | 3 | 24 | 7.9 | 0 | 0 | 13* | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 06* | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 3.3 | 13 | 4 | 3 | 0 | 0 | |