東京地方 天気予報
降水確率精度検証結果一覧表
表の見方と注意事項
グラフ 戻る
2009/01
| | 実際の降水日数／予報日数 | 実際の降水日数割合（%） |
| 予報降水確率 | 0% | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% | 100% | 0% | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% | 100% |
| 1日前予報 | 0/34 | 0/47 | 0/18 | 0/5 | 1/1 | 1/2 | 1/3 | 4/5 | 5/6 | 1/1 | 2/2 | 0 | 0 | 0 | 0 | 100 | 50 | 33 | 80 | 83 | 100 | 100 |
| 2日前予報 | 0/0 | 0/10 | 0/10 | 0/3 | 1/1 | 1/2 | 1/1 | 0/0 | 3/3 | 1/1 | 0/0 | | 0 | 0 | 0 | 100 | 50 | 100 | | 100 | 100 | |
| 3日前予報 | 0/0 | 0/15 | 1/7 | 0/3 | 1/1 | 2/2 | 1/1 | 1/1 | 1/1 | 0/0 | 0/0 | | 0 | 14 | 0 | 100 | 100 | 100 | 100 | 100 | | |
| 4日前予報 | 0/0 | 1/9 | 0/12 | 0/2 | 1/3 | 1/1 | 2/2 | 2/2 | 0/0 | 0/0 | 0/0 | | 11 | 0 | 0 | 33 | 100 | 100 | 100 | | | |
| 5日前予報 | 0/0 | 0/12 | 1/7 | 1/5 | 0/2 | 3/3 | 1/1 | 1/1 | 0/0 | 0/0 | 0/0 | | 0 | 14 | 20 | 0 | 100 | 100 | 100 | | | |
| 6日前予報 | 0/0 | 0/14 | 0/4 | 1/6 | 2/3 | 4/4 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | | 0 | 0 | 17 | 67 | 100 | | | | | |
| 7日前予報 | 0/0 | 0/7 | 1/12 | 1/3 | 1/5 | 4/4 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | | 0 | 8 | 33 | 20 | 100 | | | | | |
2009/02
| | 実際の降水日数／予報日数 | 実際の降水日数割合（%） |
| 予報降水確率 | 0% | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% | 100% | 0% | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% | 100% |
| 1日前予報 | 0/41 | 0/31 | 1/19 | 0/6 | 0/0 | 0/7 | 0/1 | 1/1 | 4/4 | 2/2 | 0/0 | 0 | 0 | 5 | 0 | | 0 | 0 | 100 | 100 | 100 | |
| 2日前予報 | 0/0 | 0/6 | 0/6 | 0/4 | 0/5 | 0/1 | 0/1 | 2/3 | 1/1 | 1/1 | 0/0 | | 0 | 0 | 0 | 0 | 0 | 0 | 67 | 100 | 100 | |
| 3日前予報 | 0/0 | 0/8 | 0/8 | 0/2 | 1/3 | 0/3 | 0/1 | 3/3 | 0/0 | 0/0 | 0/0 | | 0 | 0 | 0 | 33 | 0 | 0 | 100 | | | |
| 4日前予報 | 0/0 | 0/6 | 0/10 | 0/3 | 1/2 | 0/3 | 1/2 | 2/2 | 0/0 | 0/0 | 0/0 | | 0 | 0 | 0 | 50 | 0 | 50 | 100 | | | |
| 5日前予報 | 0/0 | 0/5 | 0/10 | 0/4 | 1/2 | 1/4 | 2/3 | 0/0 | 0/0 | 0/0 | 0/0 | | 0 | 0 | 0 | 50 | 25 | 67 | | | | |
| 6日前予報 | 0/0 | 0/3 | 0/9 | 0/6 | 1/4 | 2/5 | 1/1 | 0/0 | 0/0 | 0/0 | 0/0 | | 0 | 0 | 0 | 25 | 40 | 100 | | | | |
| 7日前予報 | 0/0 | 0/1 | 0/7 | 1/12 | 0/4 | 2/3 | 1/1 | 0/0 | 0/0 | 0/0 | 0/0 | | 0 | 0 | 8 | 0 | 67 | 100 | | | | |
2009/03
| | 実際の降水日数／予報日数 | 実際の降水日数割合（%） |
| 予報降水確率 | 0% | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% | 100% | 0% | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% | 100% |
| 1日前予報 | 0/36 | 0/34 | 1/22 | 1/10 | 1/2 | 3/8 | 0/2 | 3/4 | 4/4 | 2/2 | 0/0 | 0 | 0 | 5 | 10 | 50 | 38 | 0 | 75 | 100 | 100 | |
| 2日前予報 | 0/0 | 0/9 | 0/6 | 1/6 | 0/0 | 2/3 | 1/1 | 0/0 | 4/5 | 1/1 | 0/0 | | 0 | 0 | 17 | | 67 | 100 | | 80 | 100 | |
| 3日前予報 | 0/0 | 0/7 | 1/6 | 0/4 | 0/2 | 3/6 | 1/1 | 1/1 | 3/4 | 0/0 | 0/0 | | 0 | 17 | 0 | 0 | 50 | 100 | 100 | 75 | | |
| 4日前予報 | 0/0 | 0/6 | 1/5 | 0/7 | 1/1 | 3/5 | 2/4 | 0/0 | 2/3 | 0/0 | 0/0 | | 0 | 20 | 0 | 100 | 60 | 50 | | 67 | | |
| 5日前予報 | 0/0 | 0/4 | 0/6 | 2/8 | 2/5 | 5/6 | 0/0 | 0/1 | 0/1 | 0/0 | 0/0 | | 0 | 0 | 25 | 40 | 83 | | 0 | 0 | | |
| 6日前予報 | 0/0 | 0/3 | 0/8 | 3/7 | 4/8 | 0/1 | 2/4 | 0/0 | 0/0 | 0/0 | 0/0 | | 0 | 0 | 43 | 50 | 0 | 50 | | | | |
| 7日前予報 | 0/0 | 0/1 | 1/7 | 5/15 | 2/7 | 1/1 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | | 0 | 14 | 33 | 29 | 100 | | | | | |
2009/04
| | 実際の降水日数／予報日数 | 実際の降水日数割合（%） |
| 予報降水確率 | 0% | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% | 100% | 0% | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% | 100% |
| 1日前予報 | 0/43 | 0/34 | 0/14 | 1/8 | 1/4 | 3/6 | 1/3 | 2/4 | 2/2 | 2/2 | 0/0 | 0 | 0 | 0 | 13 | 25 | 50 | 33 | 50 | 100 | 100 | |
| 2日前予報 | 0/0 | 1/12 | 1/7 | 0/4 | 0/0 | 2/3 | 1/2 | 0/0 | 0/0 | 2/2 | 0/0 | | 8 | 14 | 0 | | 67 | 50 | | | 100 | |
| 3日前予報 | 0/0 | 0/10 | 2/8 | 1/3 | 0/1 | 1/5 | 1/1 | 0/0 | 2/2 | 0/0 | 0/0 | | 0 | 25 | 33 | 0 | 20 | 100 | | 100 | | |
| 4日前予報 | 0/0 | 1/8 | 2/11 | 0/1 | 0/4 | 2/3 | 0/1 | 1/1 | 1/1 | 0/0 | 0/0 | | 13 | 18 | 0 | 0 | 67 | 0 | 100 | 100 | | |
| 5日前予報 | 0/0 | 0/6 | 2/8 | 1/5 | 0/4 | 2/3 | 2/3 | 0/1 | 0/0 | 0/0 | 0/0 | | 0 | 25 | 20 | 0 | 67 | 67 | 0 | | | |
| 6日前予報 | 0/0 | 0/2 | 2/12 | 0/3 | 4/10 | 0/1 | 1/1 | 0/1 | 0/0 | 0/0 | 0/0 | | 0 | 17 | 0 | 40 | 0 | 100 | 0 | | | |
| 7日前予報 | 0/0 | 0/1 | 1/12 | 2/5 | 3/9 | 0/0 | 1/3 | 0/0 | 0/0 | 0/0 | 0/0 | | 0 | 8 | 40 | 33 | | 33 | | | | |
2009/05
| | 実際の降水日数／予報日数 | 実際の降水日数割合（%） |
| 予報降水確率 | 0% | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% | 100% | 0% | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% | 100% |
| 1日前予報 | 0/29 | 1/35 | 2/20 | 2/6 | 1/8 | 6/11 | 1/1 | 6/7 | 5/6 | 1/1 | 0/0 | 0 | 3 | 10 | 33 | 13 | 55 | 100 | 86 | 83 | 100 | |
| 2日前予報 | 0/0 | 0/9 | 0/5 | 1/5 | 3/3 | 0/1 | 2/3 | 1/2 | 3/3 | 0/0 | 0/0 | | 0 | 0 | 20 | 100 | 0 | 67 | 50 | 100 | | |
| 3日前予報 | 0/0 | 0/7 | 1/5 | 0/3 | 4/9 | 1/3 | 3/3 | 0/0 | 1/1 | 0/0 | 0/0 | | 0 | 20 | 0 | 44 | 33 | 100 | | 100 | | |
| 4日前予報 | 0/0 | 0/8 | 2/5 | 1/4 | 4/9 | 0/0 | 1/1 | 1/2 | 1/2 | 0/0 | 0/0 | | 0 | 40 | 25 | 44 | | 100 | 50 | 50 | | |
| 5日前予報 | 0/0 | 2/9 | 0/4 | 1/5 | 3/7 | 2/2 | 1/1 | 1/1 | 0/2 | 0/0 | 0/0 | | 22 | 0 | 20 | 43 | 100 | 100 | 100 | 0 | | |
| 6日前予報 | 0/0 | 1/7 | 1/6 | 2/5 | 4/9 | 1/1 | 1/2 | 0/1 | 0/0 | 0/0 | 0/0 | | 14 | 17 | 40 | 44 | 100 | 50 | 0 | | | |
| 7日前予報 | 0/0 | 2/7 | 1/6 | 6/11 | 0/4 | 0/0 | 1/3 | 0/0 | 0/0 | 0/0 | 0/0 | | 29 | 17 | 55 | 0 | | 33 | | | | |
2009/06
| | 実際の降水日数／予報日数 | 実際の降水日数割合（%） |
| 予報降水確率 | 0% | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% | 100% | 0% | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% | 100% |
| 1日前予報 | 0/11 | 0/37 | 2/20 | 4/20 | 1/6 | 6/16 | 6/7 | 3/3 | 0/0 | 0/0 | 0/0 | 0 | 0 | 10 | 20 | 17 | 38 | 86 | 100 | | | |
| 2日前予報 | 0/0 | 0/2 | 0/4 | 1/9 | 3/5 | 3/4 | 2/2 | 3/3 | 0/0 | 1/1 | 0/0 | | 0 | 0 | 11 | 60 | 75 | 100 | 100 | | 100 | |
| 3日前予報 | 0/0 | 0/3 | 0/6 | 1/6 | 4/5 | 3/4 | 3/3 | 2/2 | 0/1 | 0/0 | 0/0 | | 0 | 0 | 17 | 80 | 75 | 100 | 100 | 0 | | |
| 4日前予報 | 0/0 | 0/1 | 0/5 | 3/8 | 6/11 | 3/3 | 1/1 | 0/1 | 0/0 | 0/0 | 0/0 | | 0 | 0 | 38 | 55 | 100 | 100 | 0 | | | |
| 5日前予報 | 0/0 | 0/1 | 0/1 | 1/7 | 7/14 | 2/2 | 2/4 | 1/1 | 0/0 | 0/0 | 0/0 | | 0 | 0 | 14 | 50 | 100 | 50 | 100 | | | |
| 6日前予報 | 0/0 | 0/1 | 1/2 | 1/6 | 8/16 | 1/3 | 1/1 | 1/1 | 0/0 | 0/0 | 0/0 | | 0 | 50 | 17 | 50 | 33 | 100 | 100 | | | |
| 7日前予報 | 0/0 | 0/1 | 0/2 | 4/8 | 8/16 | 1/2 | 0/1 | 0/0 | 0/0 | 0/0 | 0/0 | | 0 | 0 | 50 | 50 | 50 | 0 | | | | |
2009/07
| | 実際の降水日数／予報日数 | 実際の降水日数割合（%） |
| 予報降水確率 | 0% | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% | 100% | 0% | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% | 100% |
| 1日前予報 | 0/3 | 0/26 | 1/39 | 2/24 | 3/9 | 8/16 | 3/6 | 0/1 | 0/0 | 0/0 | 0/0 | 0 | 0 | 3 | 8 | 33 | 50 | 50 | 0 | | | |
| 2日前予報 | 0/0 | 0/0 | 0/4 | 0/7 | 7/12 | 3/3 | 1/1 | 2/2 | 1/2 | 0/0 | 0/0 | | | 0 | 0 | 58 | 100 | 100 | 100 | 50 | | |
| 3日前予報 | 0/0 | 0/1 | 0/3 | 1/5 | 7/12 | 3/5 | 1/3 | 1/1 | 1/1 | 0/0 | 0/0 | | 0 | 0 | 20 | 58 | 60 | 33 | 100 | 100 | | |
| 4日前予報 | 0/0 | 0/0 | 0/3 | 1/7 | 6/9 | 3/8 | 3/3 | 1/1 | 0/0 | 0/0 | 0/0 | | | 0 | 14 | 67 | 38 | 100 | 100 | | | |
| 5日前予報 | 0/0 | 0/0 | 1/4 | 2/6 | 5/10 | 2/4 | 1/4 | 3/3 | 0/0 | 0/0 | 0/0 | | | 25 | 33 | 50 | 50 | 25 | 100 | | | |
| 6日前予報 | 0/0 | 0/0 | 2/4 | 2/5 | 6/14 | 0/1 | 3/6 | 1/1 | 0/0 | 0/0 | 0/0 | | | 50 | 40 | 43 | 0 | 50 | 100 | | | |
| 7日前予報 | 0/0 | 0/0 | 1/2 | 3/6 | 8/18 | 1/3 | 1/2 | 0/0 | 0/0 | 0/0 | 0/0 | | | 50 | 50 | 44 | 33 | 50 | | | | |
2009/08
| | 実際の降水日数／予報日数 | 実際の降水日数割合（%） |
| 予報降水確率 | 0% | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% | 100% | 0% | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% | 100% |
| 1日前予報 | 1/4 | 1/51 | 0/28 | 2/20 | 1/4 | 2/7 | 2/5 | 1/2 | 2/2 | 1/1 | 0/0 | 25 | 2 | 0 | 10 | 25 | 29 | 40 | 50 | 100 | 100 | |
| 2日前予報 | 0/0 | 1/1 | 0/12 | 1/7 | 1/4 | 1/1 | 1/4 | 1/1 | 1/1 | 0/0 | 0/0 | | 100 | 0 | 14 | 25 | 100 | 25 | 100 | 100 | | |
| 3日前予報 | 0/0 | 1/9 | 1/10 | 1/2 | 1/5 | 2/2 | 0/1 | 1/2 | 0/0 | 0/0 | 0/0 | | 11 | 10 | 50 | 20 | 100 | 0 | 50 | | | |
| 4日前予報 | 0/0 | 1/8 | 1/10 | 1/3 | 3/7 | 1/2 | 0/0 | 0/0 | 0/1 | 0/0 | 0/0 | | 13 | 10 | 33 | 43 | 50 | | | 0 | | |
| 5日前予報 | 0/0 | 1/6 | 0/8 | 3/7 | 2/8 | 1/1 | 0/1 | 0/0 | 0/0 | 0/0 | 0/0 | | 17 | 0 | 43 | 25 | 100 | 0 | | | | |
| 6日前予報 | 0/0 | 1/6 | 0/9 | 2/7 | 4/9 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | | 17 | 0 | 29 | 44 | | | | | | |
| 7日前予報 | 0/0 | 0/6 | 1/7 | 3/13 | 3/4 | 0/0 | 0/1 | 0/0 | 0/0 | 0/0 | 0/0 | | 0 | 14 | 23 | 75 | | 0 | | | | |
2009/09
| | 実際の降水日数／予報日数 | 実際の降水日数割合（%） |
| 予報降水確率 | 0% | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% | 100% | 0% | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% | 100% |
| 1日前予報 | 0/9 | 0/58 | 0/19 | 1/12 | 2/8 | 3/12 | 1/2 | 0/0 | 0/0 | 0/0 | 0/0 | 0 | 0 | 0 | 8 | 25 | 25 | 50 | | | | |
| 2日前予報 | 0/0 | 0/5 | 0/8 | 0/6 | 1/5 | 1/2 | 2/2 | 0/2 | 0/0 | 0/0 | 0/0 | | 0 | 0 | 0 | 20 | 50 | 100 | 0 | | | |
| 3日前予報 | 0/0 | 0/8 | 0/3 | 1/10 | 2/4 | 0/4 | 0/0 | 1/1 | 0/0 | 0/0 | 0/0 | | 0 | 0 | 10 | 50 | 0 | | 100 | | | |
| 4日前予報 | 0/0 | 0/4 | 1/8 | 1/9 | 1/5 | 0/2 | 0/0 | 1/2 | 0/0 | 0/0 | 0/0 | | 0 | 13 | 11 | 20 | 0 | | 50 | | | |
| 5日前予報 | 0/0 | 0/7 | 1/8 | 1/7 | 1/4 | 0/1 | 1/3 | 0/0 | 0/0 | 0/0 | 0/0 | | 0 | 13 | 14 | 25 | 0 | 33 | | | | |
| 6日前予報 | 0/0 | 0/4 | 2/10 | 0/6 | 1/7 | 0/1 | 1/1 | 0/1 | 0/0 | 0/0 | 0/0 | | 0 | 20 | 0 | 14 | 0 | 100 | 0 | | | |
| 7日前予報 | 0/0 | 0/4 | 2/9 | 0/7 | 1/8 | 1/2 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | | 0 | 22 | 0 | 13 | 50 | | | | | |
2009/10
| | 実際の降水日数／予報日数 | 実際の降水日数割合（%） |
| 予報降水確率 | 0% | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% | 100% | 0% | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% | 100% |
| 1日前予報 | 0/19 | 1/54 | 0/19 | 2/7 | 1/3 | 4/5 | 5/5 | 2/2 | 3/3 | 4/5 | 2/2 | 0 | 2 | 0 | 29 | 33 | 80 | 100 | 100 | 100 | 80 | 100 |
| 2日前予報 | 0/0 | 1/6 | 1/12 | 1/4 | 2/2 | 0/0 | 2/2 | 2/2 | 2/2 | 1/1 | 0/0 | | 17 | 8 | 25 | 100 | | 100 | 100 | 100 | 100 | |
| 3日前予報 | 0/0 | 0/11 | 2/5 | 2/4 | 0/3 | 4/4 | 2/2 | 0/0 | 1/1 | 1/1 | 0/0 | | 0 | 40 | 50 | 0 | 100 | 100 | | 100 | 100 | |
| 4日前予報 | 0/0 | 1/11 | 0/2 | 1/4 | 2/5 | 4/5 | 1/1 | 2/2 | 1/1 | 0/0 | 0/0 | | 9 | 0 | 25 | 40 | 80 | 100 | 100 | 100 | | |
| 5日前予報 | 0/0 | 1/8 | 0/6 | 1/3 | 3/6 | 2/2 | 2/2 | 2/3 | 1/1 | 0/0 | 0/0 | | 13 | 0 | 33 | 50 | 100 | 100 | 67 | 100 | | |
| 6日前予報 | 0/0 | 0/6 | 1/6 | 3/7 | 5/8 | 0/0 | 1/1 | 2/3 | 0/0 | 0/0 | 0/0 | | 0 | 17 | 43 | 63 | | 100 | 67 | | | |
| 7日前予報 | 0/0 | 0/5 | 1/7 | 4/10 | 5/6 | 2/2 | 0/1 | 0/0 | 0/0 | 0/0 | 0/0 | | 0 | 14 | 40 | 83 | 100 | 0 | | | | |
2009/11
| | 実際の降水日数／予報日数 | 実際の降水日数割合（%） |
| 予報降水確率 | 0% | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% | 100% | 0% | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% | 100% |
| 1日前予報 | 0/14 | 0/52 | 0/18 | 3/11 | 3/4 | 6/8 | 1/2 | 2/4 | 3/4 | 3/3 | 0/0 | 0 | 0 | 0 | 27 | 75 | 75 | 50 | 50 | 75 | 100 | |
| 2日前予報 | 0/0 | 0/4 | 0/7 | 3/6 | 2/2 | 1/3 | 0/0 | 2/3 | 3/3 | 2/2 | 0/0 | | 0 | 0 | 50 | 100 | 33 | | 67 | 100 | 100 | |
| 3日前予報 | 0/0 | 1/9 | 0/5 | 3/3 | 0/2 | 2/2 | 2/3 | 3/4 | 1/1 | 1/1 | 0/0 | | 11 | 0 | 100 | 0 | 100 | 67 | 75 | 100 | 100 | |
| 4日前予報 | 0/0 | 2/8 | 0/4 | 1/4 | 3/4 | 0/2 | 1/2 | 4/4 | 2/2 | 0/0 | 0/0 | | 25 | 0 | 25 | 75 | 0 | 50 | 100 | 100 | | |
| 5日前予報 | 0/0 | 2/9 | 1/5 | 1/3 | 4/6 | 2/4 | 1/1 | 2/2 | 0/0 | 0/0 | 0/0 | | 22 | 20 | 33 | 67 | 50 | 100 | 100 | | | |
| 6日前予報 | 0/0 | 1/8 | 3/6 | 1/4 | 4/6 | 1/3 | 2/2 | 1/1 | 0/0 | 0/0 | 0/0 | | 13 | 50 | 25 | 67 | 33 | 100 | 100 | | | |
| 7日前予報 | 0/0 | 0/3 | 3/13 | 1/1 | 6/8 | 2/3 | 1/2 | 0/0 | 0/0 | 0/0 | 0/0 | | 0 | 23 | 100 | 75 | 67 | 50 | | | | |
2009/12
| | 実際の降水日数／予報日数 | 実際の降水日数割合（%） |
| 予報降水確率 | 0% | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% | 100% | 0% | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% | 100% |
| 1日前予報 | 0/35 | 0/50 | 0/19 | 0/6 | 0/2 | 2/4 | 1/1 | 1/1 | 3/3 | 3/3 | 0/0 | 0 | 0 | 0 | 0 | 0 | 50 | 100 | 100 | 100 | 100 | |
| 2日前予報 | 0/0 | 0/11 | 0/8 | 1/3 | 0/4 | 1/2 | 0/0 | 0/0 | 2/2 | 1/1 | 0/0 | | 0 | 0 | 33 | 0 | 50 | | | 100 | 100 | |
| 3日前予報 | 0/0 | 0/15 | 1/3 | 0/2 | 0/5 | 3/5 | 0/0 | 1/1 | 0/0 | 0/0 | 0/0 | | 0 | 33 | 0 | 0 | 60 | | 100 | | | |
| 4日前予報 | 0/0 | 0/10 | 2/9 | 0/6 | 1/1 | 1/4 | 0/0 | 1/1 | 0/0 | 0/0 | 0/0 | | 0 | 22 | 0 | 100 | 25 | | 100 | | | |
| 5日前予報 | 0/0 | 0/11 | 0/7 | 3/7 | 1/3 | 0/1 | 1/2 | 0/0 | 0/0 | 0/0 | 0/0 | | 0 | 0 | 43 | 33 | 0 | 50 | | | | |
| 6日前予報 | 0/0 | 0/7 | 0/10 | 3/8 | 1/3 | 1/2 | 0/1 | 0/0 | 0/0 | 0/0 | 0/0 | | 0 | 0 | 38 | 33 | 50 | 0 | | | | |
| 7日前予報 | 0/0 | 0/4 | 1/11 | 1/6 | 3/8 | 0/1 | 0/1 | 0/0 | 0/0 | 0/0 | 0/0 | | 0 | 9 | 17 | 38 | 0 | 0 | | | | |
2009合計
| | 実際の降水日数／予報日数 | 実際の降水日数割合（%） |
| 予報降水確率 | 0% | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% | 100% | 0% | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% | 100% |
| 1日前予報 | 1/278 | 3/509 | 7/255 | 18/135 | 15/51 | 44/102 | 22/38 | 25/34 | 31/34 | 19/20 | 4/4 | 0 | 1 | 3 | 13 | 29 | 43 | 58 | 74 | 91 | 95 | 100 |
| 2日前予報 | 0/0 | 3/75 | 2/89 | 9/64 | 20/43 | 15/25 | 13/19 | 13/18 | 20/22 | 10/10 | 0/0 | | 4 | 2 | 14 | 47 | 60 | 68 | 72 | 91 | 100 | |
| 3日前予報 | 0/0 | 2/103 | 9/69 | 10/47 | 20/52 | 24/45 | 14/19 | 14/16 | 10/12 | 2/2 | 0/0 | | 2 | 13 | 21 | 38 | 53 | 74 | 88 | 83 | 100 | |
| 4日前予報 | 0/0 | 6/79 | 9/84 | 9/58 | 29/61 | 18/38 | 12/17 | 15/18 | 7/10 | 0/0 | 0/0 | | 8 | 11 | 16 | 48 | 47 | 71 | 83 | 70 | | |
| 5日前予報 | 0/0 | 6/78 | 6/74 | 17/67 | 29/71 | 22/33 | 14/25 | 10/13 | 1/4 | 0/0 | 0/0 | | 8 | 8 | 25 | 41 | 67 | 56 | 77 | 25 | | |
| 6日前予報 | 0/0 | 3/61 | 12/86 | 18/70 | 44/97 | 10/22 | 13/20 | 5/9 | 0/0 | 0/0 | 0/0 | | 5 | 14 | 26 | 45 | 45 | 65 | 56 | | | |
| 7日前予報 | 0/0 | 2/40 | 13/95 | 31/97 | 40/97 | 14/21 | 5/15 | 0/0 | 0/0 | 0/0 | 0/0 | | 5 | 14 | 32 | 41 | 67 | 33 | | | | |
降水確率的中率のグラフ
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Last updated 2010/01/02
連絡先：tf2