半旬ごとの値
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千葉（千葉県) 1998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 | 19.9 | 41 | 0 | 2 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.9 | 0 | 1 | 0 | 0 | 0 | ||||
| 第2半旬 | 6～10 | 30.1 | 61 | 1 | 4 | 4 | 4 | 09 | 1 | 0 | 0 | 0 | 0 | 0 | 4 | 09 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 3.8 | 1 | 1 | 2 | 0 | 0 | ||
| 第3半旬 | 11～15 | 13.2 | 27 | 2 | 1 | 2 | 2 | 15 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 15 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 7.9 | 1 | 4 | 2 | 0 | 0 | ||
| 第4半旬 | 16～20 | 23.4 | 47 | 1 | 2 | 0 | 0 | 19 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 16 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 5.9 | 2 | 3 | 1 | 1 | 0 | ||
| 第5半旬 | 21～25 | 37.1 | 73 | 1 | 4 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3.0 | 3 | 1 | 0 | 0 | 0 | ||||
| 第6半旬 | 26～31 | 42.7 | 69 | 0 | 4 | 0 | 0 | 30 | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.7 | 3 | 1 | 1 | 0 | 0 | |||
| 第1半旬 | 1～ 5 | 31.4 | 60 | 0 | 4 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.1 | 0 | 1 | 0 | 0 | 0 | ||||
| 第2半旬 | 6～10 | 31.7 | 60 | 0 | 4 | 0 | 0 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.1 | 2 | 0 | 1 | 0 | 0 | |||
| 第3半旬 | 11～15 | 25.2 | 47 | 1 | 3 | 0 | 0 | 15 | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.7 | 0 | 1 | 1 | 0 | 0 | |||
| 第4半旬 | 16～20 | 23.1 | 42 | 1 | 2 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.5 | 0 | 2 | 0 | 1 | 0 | ||||
| 第5半旬 | 21～25 | 20.4 | 37 | 2 | 2 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.9 | 2 | 2 | 0 | 0 | 0 | ||||
| 第6半旬 | 26～28 | 11.3 | 33 | 1 | 1 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.7 | 0 | 2 | 0 | 0 | 0 | ||||
| 第1半旬 | 1～ 5 | 29.9 | 52 | 2 | 3 | 4 | 4 | 01 | 1 | 0 | 0 | 0 | 0 | 0 | 5 | 01 | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 4.6 | 1 | 1 | 2 | 0 | 1 | ||
| 第2半旬 | 6～10 | 44.4 | 77 | 0 | 5 | 0 | 0 | 06 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 06 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 3.8 | 2 | 0 | 1 | 0 | 0 | ||
| 第3半旬 | 11～15 | 22.6 | 38 | 2 | 3 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.0 | 2 | 3 | 0 | 0 | 0 | ||||
| 第4半旬 | 16～20 | 34.6 | 58 | 1 | 4 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.0 | 1 | 3 | 0 | 0 | 0 | ||||
| 第5半旬 | 21～25 | 13.3 | 22 | 1 | 1 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.6 | 0 | 5 | 0 | 0 | 0 | ||||
| 第6半旬 | 26～31 | 40.4 | 54 | 1 | 5 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.0 | 0 | 1 | 0 | 0 | 0 | ||||
| 第1半旬 | 1～ 5 | 16.4 | 26 | 2 | 2 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.3 | 0 | 3 | 0 | 0 | 0 | ||||
| 第2半旬 | 6～10 | 12.5 | 20 | 3 | 1 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.9 | 1 | 4 | 0 | 0 | 0 | ||||
| 第3半旬 | 11～15 | 16.1 | 25 | 1 | 1 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.7 | 0 | 4 | 0 | 1 | 0 | ||||
| 第4半旬 | 16～20 | 28.4 | 43 | 1 | 3 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.2 | 0 | 3 | 0 | 0 | 0 | ||||
| 第5半旬 | 21～25 | 19.8 | 30 | 1 | 2 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.8 | 0 | 3 | 0 | 0 | 0 | ||||
| 第6半旬 | 26～30 | 14.6 | 22 | 2 | 1 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.7 | 0 | 4 | 0 | 0 | 0 | ||||
| 第1半旬 | 1～ 5 | 17.2 | 25 | 1 | 1 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.5 | 0 | 4 | 0 | 0 | 0 | ||||
| 第2半旬 | 6～10 | 17.9 | 26 | 1 | 1 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.6 | 0 | 3 | 0 | 0 | 0 | ||||
| 第3半旬 | 11～15 | 18.2 | 26 | 0 | 1 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.7 | 0 | 4 | 0 | 0 | 0 | ||||
| 第4半旬 | 16～20 | 26.5 | 38 | 1 | 2 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.1 | 0 | 2 | 0 | 0 | 0 | ||||
| 第5半旬 | 21～25 | 34.8 | 49 | 1 | 3 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.1 | 1 | 2 | 0 | 0 | 0 | ||||
| 第6半旬 | 26～31 | 25.4 | 30 | 2 | 2 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.0 | 0 | 5 | 0 | 0 | 0 | ||||
| 第1半旬 | 1～ 5 | 14.5 | 20 | 3 | 2 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10.0 | 0 | 5 | 0 | 0 | 0 | ||||
| 第2半旬 | 6～10 | 4.3 | 6 | 3 | 0 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.4 | 0 | 4 | 0 | 0 | 0 | ||||
| 第3半旬 | 11～15 | 11.2 | 15 | 2 | 1 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.7 | 0 | 4 | 0 | 0 | 0 | ||||
| 第4半旬 | 16～20 | 15.0 | 21 | 1 | 1 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.3 | 0 | 4 | 0 | 0 | 0 | ||||
| 第5半旬 | 21～25 | 1.0 | 1 | 3 | 0 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10.0 | 0 | 5 | 0 | 0 | 0 | ||||
| 第6半旬 | 26～30 | 27.4 | 38 | 0 | 3 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.5 | 1 | 2 | 0 | 0 | 0 | ||||
| 第1半旬 | 1～ 5 | 41.1 | 57 | 0 | 4 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.2 | 1 | 0 | 0 | 0 | 0 | ||||
| 第2半旬 | 6～10 | 10.7 | 15 | 0 | 0 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10.0 | 0 | 5 | 0 | 0 | 1 | ||||
| 第3半旬 | 11～15 | 11.4 | 16 | 1 | 0 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.7 | 0 | 5 | 0 | 0 | 1 | ||||
| 第4半旬 | 16～20 | 11.4 | 16 | 2 | 1 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.4 | 0 | 3 | 0 | 0 | 0 | ||||
| 第5半旬 | 21～25 | 8.7 | 12 | 1 | 0 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.9 | 0 | 5 | 0 | 0 | 0 | ||||
| 第6半旬 | 26～31 | 30.0 | 36 | 0 | 3 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.0 | 0 | 3 | 0 | 0 | 3 | ||||
| 第1半旬 | 1～ 5 | 21.3 | 31 | 0 | 2 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.5 | 0 | 3 | 0 | 0 | 2 | ||||
| 第2半旬 | 6～10 | 7.1 | 10 | 1 | 0 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.7 | 0 | 4 | 0 | 0 | 0 | ||||
| 第3半旬 | 11～15 | 18.1 | 27 | 0 | 1 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.7 | 0 | 5 | 0 | 0 | 1 | ||||
| 第4半旬 | 16～20 | 25.7 | 38 | 1 | 3 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.8 | 0 | 3 | 0 | 0 | 0 | ||||
| 第5半旬 | 21～25 | 19.8 | 30 | 0 | 1 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.8 | 0 | 2 | 0 | 0 | 0 | ||||
| 第6半旬 | 26～31 | 13.6 | 17 | 2 | 2 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.2 | 0 | 4 | 0 | 0 | 0 | ||||
| 第1半旬 | 1～ 5 | 8.3 | 13 | 0 | 0 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.9 | 0 | 1 | 0 | 0 | 0 | ||||
| 第2半旬 | 6～10 | 23.5 | 37 | 1 | 2 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.3 | 0 | 3 | 0 | 0 | 0 | ||||
| 第3半旬 | 11～15 | 18.2 | 29 | 1 | 1 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.1 | 1 | 2 | 0 | 0 | 0 | ||||
| 第4半旬 | 16～20 | 22.5 | 37 | 1 | 3 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.1 | 0 | 2 | 0 | 1 | 0 | ||||
| 第5半旬 | 21～25 | 13.1 | 22 | 1 | 1 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.0 | 0 | 4 | 0 | 0 | 0 | ||||
| 第6半旬 | 26～30 | 1.8 | 3 | 3 | 0 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10.0 | 0 | 5 | 0 | 0 | 0 | ||||
| 第1半旬 | 1～ 5 | 28.0 | 48 | 1 | 3 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.3 | 1 | 2 | 0 | 0 | 0 | ||||
| 第2半旬 | 6～10 | 21.5 | 37 | 1 | 3 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.5 | 0 | 3 | 0 | 0 | 1 | ||||
| 第3半旬 | 11～15 | 20.0 | 35 | 1 | 2 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.1 | 1 | 4 | 0 | 0 | 0 | ||||
| 第4半旬 | 16～20 | 15.4 | 28 | 2 | 1 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.7 | 0 | 3 | 0 | 0 | 1 | ||||
| 第5半旬 | 21～25 | 11.0 | 20 | 2 | 1 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.2 | 1 | 4 | 0 | 0 | 0 | ||||
| 第6半旬 | 26～31 | 19.0 | 29 | 2 | 2 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.3 | 2 | 3 | 0 | 1 | 0 | ||||
| 第1半旬 | 1～ 5 | 12.8 | 24 | 1 | 1 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.4 | 0 | 3 | 0 | 0 | 0 | ||||
| 第2半旬 | 6～10 | 19.8 | 38 | 1 | 2 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.7 | 1 | 1 | 0 | 0 | 0 | ||||
| 第3半旬 | 11～15 | 34.3 | 66 | 0 | 4 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.5 | 3 | 0 | 0 | 0 | 0 | ||||
| 第4半旬 | 16～20 | 25.7 | 50 | 0 | 4 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.6 | 1 | 1 | 0 | 0 | 0 | ||||
| 第5半旬 | 21～25 | 33.3 | 66 | 0 | 4 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.3 | 1 | 1 | 0 | 0 | 0 | ||||
| 第6半旬 | 26～30 | 28.8 | 58 | 0 | 3 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.2 | 1 | 2 | 0 | 0 | 1 | ||||
| 第1半旬 | 1～ 5 | 10.1 | 20 | 3 | 1 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.0 | 0 | 3 | 0 | 0 | 0 | ||||
| 第2半旬 | 6～10 | 12.1 | 25 | 2 | 2 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.5 | 0 | 2 | 0 | 0 | 0 | ||||
| 第3半旬 | 11～15 | 26.1 | 54 | 0 | 3 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.7 | 1 | 1 | 0 | 0 | 0 | ||||
| 第4半旬 | 16～20 | 35.2 | 73 | 0 | 4 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.4 | 3 | 1 | 0 | 0 | 0 | ||||
| 第5半旬 | 21～25 | 34.7 | 72 | 0 | 5 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3.3 | 2 | 1 | 0 | 0 | 0 | ||||
| 第6半旬 | 26～31 | 40.4 | 69 | 0 | 5 | 0 | 0 | 31 | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.7 | 3 | 0 | 1 | 0 | 0 | |||