３か月ごとの値
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八丈島（東京都) 1963年（３か月ごとの値） 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 | ||||||||||||||||||||||||||||
11～1 | 315.8 | 34 | 8 | 37 | 0 | 0 | 01/31* | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 01/26* | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 7.3 | 2 | 28 | 7 | 0 | 10 | |
12～2 | 367.0 | 39 | 3 | 46 | 0 | 0 | 02/27* | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 02/05* | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 7.1 | 1 | 22 | 9 | 0 | 13 | |
1～3 | 395.9 | 40 | 7 | 46 | 0 | 0 | 02/27* | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 02/05* | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 7.2 | 1 | 26 | 9 | 0 | 11 | |
2～4 | 438.5 | 41 | 13 | 50 | 0 | 0 | 02/27* | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 02/05* | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 7.1 | 2 | 34 | 2 | 1 | 7 | |
3～5 | 366.0 | 31 | 25 | 37 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.9 | 2 | 53 | 0 | 4 | 7 | |||
4～6 | 359.2 | 29 | 22 | 32 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.2 | 3 | 58 | 0 | 5 | 4 | |||
5～7 | 395.1 | 31 | 18 | 35 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.0 | 2 | 54 | 0 | 4 | 10 | |||
6～8 | 499.7 | 39 | 7 | 48 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.5 | 2 | 44 | 0 | 1 | 14 | |||
7～9 | 519.4 | 43 | 8 | 54 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.4 | 1 | 44 | 0 | 0 | 17 | |||
8～10 | 458.3 | 40 | 14 | 48 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.6 | 1 | 50 | 0 | 0 | 11 | |||
9～11 | 394.0 | 38 | 18 | 41 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.4 | 1 | 46 | 0 | 0 | 7 | |||
10～12 | 372.9 | 38 | 15 | 42 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.0 | 0 | 35 | 0 | 0 | 6 | |||