月ごとの値
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南鳥島（東京都) 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 | ||||||||||||||||||||||||||||
| 194.7 | 58 | 1 | 27 | 14.0 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.2 | 2 | 1 | 0 | 0 | 0 | |||
| 209.4 | 66 | 0 | 23 | 17.1 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.7 | 4 | 3 | 0 | 0 | 0 | |||
| 191.7 | 52 | 2 | 19 | 18.0 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.3 | 1 | 7 | 0 | 0 | 0 | |||
| 270.8 | 71 | 0 | 27 | 23.8 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.6 | 2 | 0 | 0 | 0 | 0 | |||
| 308.1 | 75 | 0 | 29 | 25.7 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.1 | 2 | 1 | 0 | 0 | 0 | |||
| 316.4 | 78 | 0 | 27 | 25.7 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.1 | 3 | 1 | 0 | 0 | 1 | |||
| 259.8 | 62 | 0 | 24 | 23.0 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.8 | 2 | 11 | 0 | 0 | 3 | |||
| 261.2 ) | 65 ) | 3 | 27 | 21.8 ) | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.9 | 0 | 12 | 0 | 0 | 2 | |||
| 255.4 | 69 | 0 | 28 | 21.7 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.0 | 0 | 5 | 0 | 0 | 1 | |||
| 262.5 | 73 | 1 | 30 | 18.7 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.4 | 3 | 1 | 0 | 0 | 2 | |||
| 237.7 | 72 | 1 | 27 | 16.2 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.0 | 3 | 3 | 0 | 0 | 0 | |||
| 181.6 | 55 | 0 | 23 | 12.9 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.9 | 2 | 7 | 0 | 0 | 0 | |||