３か月ごとの値
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銚子（千葉県) 1981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 | 541.7 | 59 | 6 | 63 | 16.4 | 0 | 0 | 01/26* | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.2 | 29 | 12 | 1 | 1 | 6 | |
12～2 | 541.3 | 59 | 8 | 64 | 13.8 | 0 | 0 | 02/26* | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.3 | 29 | 15 | 4 | 1 | 5 | |
1～3 | 521.4 | 53 | 12 | 57 | 11.6 | 0 | 0 | 03/02* | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.1 | 19 | 22 | 5 | 5 | 1 | |
2～4 | 519.1 | 49 | 16 | 51 | 13.9 | 0 | 0 | 03/02* | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.0 | 15 | 29 | 4 | 8 | 1 | |
3～5 | 574.9 | 48 | 16 | 53 | 16.4 | 0 | 0 | 03/02 | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.5 | 12 | 35 | 1 | 11 | 2 | |
4～6 | 497.2 | 39 | 21 | 42 | 16.4 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.3 | 8 | 48 | 0 | 23 | 3 | ||
5～7 | 498.6 | 38 | 19 | 44 | 17.5 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.0 | 3 | 60 | 0 | 45 | 3 | ||
6～8 | 530.7 | 41 | 14 | 50 | 17.9 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.7 | 3 | 53 | 0 | 49 | 5 | ||
7～9 | 591.3 | 48 | 9 | 58 | 17.8 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.4 | 3 | 45 | 0 | 36 | 4 | ||
8～10 | 560.2 | 49 | 10 | 56 | 14.7 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.7 | 7 | 32 | 0 | 11 | 3 | ||
9～11 | 458.1 | 45 | 19 | 48 | 10.5 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.0 | 7 | 37 | 0 | 5 | 1 | ||
10～12 | 484.3 | 50 | 16 | 57 | 8.9 | 0 | 0 | 12/02 | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.7 | 16 | 25 | 0 | 2 | 1 | |