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
2026/01
| | 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 | 0/75 | 0/33 | 0/14 | 0/0 | 0/0 | 1/2 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0 | 0 | 0 | | | 50 | | | | | |
| 2日前予報 | 0/1 | 0/11 | 0/15 | 0/3 | 1/1 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0 | 0 | 0 | 0 | 100 | | | | | | |
| 3日前予報 | 0/0 | 0/3 | 0/23 | 1/5 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | | 0 | 0 | 20 | | | | | | | |
| 4日前予報 | 0/0 | 0/0 | 0/27 | 1/3 | 0/1 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | | | 0 | 33 | 0 | | | | | | |
| 5日前予報 | 0/0 | 0/0 | 0/27 | 1/4 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | | | 0 | 25 | | | | | | | |
| 6日前予報 | 0/0 | 0/0 | 1/29 | 0/2 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | | | 3 | 0 | | | | | | | |
| 7日前予報 | 0/0 | 0/1 | 0/28 | 1/2 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | | 0 | 0 | 50 | | | | | | | |
2026/02
| | 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 | 0/59 | 0/30 | 1/12 | 0/2 | 0/1 | 2/3 | 1/1 | 1/1 | 3/3 | 0/0 | 0/0 | 0 | 0 | 8 | 0 | 0 | 67 | 100 | 100 | 100 | | |
| 2日前予報 | 0/0 | 0/13 | 0/4 | 1/6 | 0/1 | 2/2 | 0/0 | 1/1 | 0/0 | 1/1 | 0/0 | | 0 | 0 | 17 | 0 | 100 | | 100 | | 100 | |
| 3日前予報 | 0/0 | 0/2 | 0/13 | 1/5 | 1/4 | 1/2 | 0/0 | 1/1 | 1/1 | 0/0 | 0/0 | | 0 | 0 | 20 | 25 | 50 | | 100 | 100 | | |
| 4日前予報 | 0/0 | 0/2 | 0/10 | 1/8 | 1/3 | 1/3 | 0/0 | 1/1 | 1/1 | 0/0 | 0/0 | | 0 | 0 | 13 | 33 | 33 | | 100 | 100 | | |
| 5日前予報 | 0/0 | 0/0 | 0/11 | 2/9 | 1/6 | 0/0 | 1/1 | 1/1 | 0/0 | 0/0 | 0/0 | | | 0 | 22 | 17 | | 100 | 100 | | | |
| 6日前予報 | 0/0 | 0/0 | 1/11 | 2/11 | 0/3 | 2/2 | 0/1 | 0/0 | 0/0 | 0/0 | 0/0 | | | 9 | 18 | 0 | 100 | 0 | | | | |
| 7日前予報 | 0/0 | 0/0 | 1/11 | 2/10 | 1/5 | 1/1 | 0/1 | 0/0 | 0/0 | 0/0 | 0/0 | | | 9 | 20 | 20 | 100 | 0 | | | | |
2026/03
| | 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 | 0/40 | 0/31 | 1/25 | 2/8 | 1/1 | 6/8 | 1/1 | 2/4 | 3/3 | 3/3 | 0/0 | 0 | 0 | 4 | 25 | 100 | 75 | 100 | 50 | 100 | 100 | |
| 2日前予報 | 0/0 | 0/8 | 0/4 | 3/7 | 0/3 | 3/4 | 2/2 | 2/2 | 1/1 | 0/0 | 0/0 | | 0 | 0 | 43 | 0 | 75 | 100 | 100 | 100 | | |
| 3日前予報 | 0/0 | 0/1 | 0/9 | 2/7 | 0/2 | 5/7 | 2/3 | 1/1 | 1/1 | 0/0 | 0/0 | | 0 | 0 | 29 | 0 | 71 | 67 | 100 | 100 | | |
| 4日前予報 | 0/0 | 0/2 | 0/7 | 1/6 | 2/6 | 5/7 | 1/1 | 1/1 | 1/1 | 0/0 | 0/0 | | 0 | 0 | 17 | 33 | 71 | 100 | 100 | 100 | | |
| 5日前予報 | 0/0 | 0/1 | 1/8 | 1/7 | 2/7 | 5/6 | 0/0 | 2/2 | 0/0 | 0/0 | 0/0 | | 0 | 13 | 14 | 29 | 83 | | 100 | | | |
| 6日前予報 | 0/0 | 0/0 | 1/8 | 1/11 | 2/4 | 6/7 | 0/0 | 1/1 | 0/0 | 0/0 | 0/0 | | | 13 | 9 | 50 | 86 | | 100 | | | |
| 7日前予報 | 0/0 | 0/0 | 1/7 | 1/13 | 3/5 | 6/6 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | | | 14 | 8 | 60 | 100 | | | | | |
2026/04
| | 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 | 0/50 | 1/29 | 0/13 | 1/6 | 0/0 | 6/9 | 2/3 | 6/6 | 4/4 | 0/0 | 0/0 | 0 | 3 | 0 | 17 | | 67 | 67 | 100 | 100 | | |
| 2日前予報 | 0/0 | 0/7 | 0/4 | 0/4 | 1/3 | 4/4 | 2/2 | 3/4 | 2/2 | 0/0 | 0/0 | | 0 | 0 | 0 | 33 | 100 | 100 | 75 | 100 | | |
| 3日前予報 | 0/0 | 0/1 | 0/8 | 0/5 | 2/5 | 5/6 | 2/2 | 3/3 | 0/0 | 0/0 | 0/0 | | 0 | 0 | 0 | 40 | 83 | 100 | 100 | | | |
| 4日前予報 | 0/0 | 0/0 | 0/7 | 0/7 | 2/5 | 5/6 | 2/2 | 3/3 | 0/0 | 0/0 | 0/0 | | | 0 | 0 | 40 | 83 | 100 | 100 | | | |
| 5日前予報 | 0/0 | 0/0 | 0/7 | 0/6 | 2/6 | 7/8 | 1/1 | 2/2 | 0/0 | 0/0 | 0/0 | | | 0 | 0 | 33 | 88 | 100 | 100 | | | |
| 6日前予報 | 0/0 | 0/0 | 0/5 | 1/8 | 5/10 | 6/7 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | | | 0 | 13 | 50 | 86 | | | | | |
| 7日前予報 | 0/0 | 0/0 | 0/2 | 4/14 | 4/9 | 4/5 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | | | 0 | 29 | 44 | 80 | | | | | |
2026/05
| | 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 | 0/53 | 0/34 | 2/18 | 2/8 | 0/0 | 3/5 | 1/1 | 2/2 | 1/1 | 1/1 | 1/1 | 0 | 0 | 11 | 25 | | 60 | 100 | 100 | 100 | 100 | 100 |
| 2日前予報 | 0/0 | 0/10 | 0/8 | 2/3 | 0/5 | 0/0 | 1/2 | 0/0 | 3/3 | 0/0 | 0/0 | | 0 | 0 | 67 | 0 | | 50 | | 100 | | |
| 3日前予報 | 0/0 | 0/4 | 0/5 | 2/12 | 0/5 | 0/1 | 2/2 | 1/1 | 1/1 | 0/0 | 0/0 | | 0 | 0 | 17 | 0 | 0 | 100 | 100 | 100 | | |
| 4日前予報 | 0/0 | 0/1 | 0/6 | 2/13 | 0/7 | 0/0 | 2/2 | 2/2 | 0/0 | 0/0 | 0/0 | | 0 | 0 | 15 | 0 | | 100 | 100 | | | |
| 5日前予報 | 0/0 | 0/0 | 0/7 | 2/13 | 0/6 | 2/3 | 2/2 | 0/0 | 0/0 | 0/0 | 0/0 | | | 0 | 15 | 0 | 67 | 100 | | | | |
| 6日前予報 | 0/0 | 0/0 | 0/8 | 2/12 | 2/7 | 2/4 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | | | 0 | 17 | 29 | 50 | | | | | |
| 7日前予報 | 0/0 | 0/0 | 1/7 | 2/12 | 3/10 | 0/2 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | | | 14 | 17 | 30 | 0 | | | | | |
2026/06
| | 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 | 0/13 | 0/32 | 1/27 | 5/17 | 2/3 | 5/8 | 4/4 | 10/10 | 3/3 | 1/1 | 2/2 | 0 | 0 | 4 | 29 | 67 | 63 | 100 | 100 | 100 | 100 | 100 |
| 2日前予報 | 0/0 | 0/1 | 0/4 | 1/6 | 4/8 | 1/1 | 5/5 | 2/2 | 1/1 | 2/2 | 0/0 | | 0 | 0 | 17 | 50 | 100 | 100 | 100 | 100 | 100 | |
| 3日前予報 | 0/0 | 0/0 | 0/1 | 1/5 | 5/14 | 3/3 | 2/2 | 4/4 | 1/1 | 0/0 | 0/0 | | | 0 | 20 | 36 | 100 | 100 | 100 | 100 | | |
| 4日前予報 | 0/0 | 0/0 | 0/1 | 2/5 | 4/10 | 5/9 | 3/3 | 2/2 | 0/0 | 0/0 | 0/0 | | | 0 | 40 | 40 | 56 | 100 | 100 | | | |
| 5日前予報 | 0/0 | 0/0 | 0/1 | 3/5 | 5/12 | 4/8 | 3/3 | 1/1 | 0/0 | 0/0 | 0/0 | | | 0 | 60 | 42 | 50 | 100 | 100 | | | |
| 6日前予報 | 0/0 | 0/0 | 0/1 | 3/4 | 6/13 | 6/11 | 1/1 | 0/0 | 0/0 | 0/0 | 0/0 | | | 0 | 75 | 46 | 55 | 100 | | | | |
| 7日前予報 | 0/0 | 0/0 | 0/0 | 3/5 | 5/12 | 8/12 | 0/1 | 0/0 | 0/0 | 0/0 | 0/0 | | | | 60 | 42 | 67 | 0 | | | | |
2026/07
| | 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 | 0/22 | 2/35 | 1/32 | 1/17 | 0/1 | 4/10 | 1/4 | 2/3 | 0/0 | 0/0 | 0/0 | 0 | 6 | 3 | 6 | 0 | 40 | 25 | 67 | | | |
| 2日前予報 | 0/0 | 0/2 | 1/8 | 1/4 | 4/10 | 3/5 | 0/0 | 0/0 | 2/2 | 0/0 | 0/0 | | 0 | 13 | 25 | 40 | 60 | | | 100 | | |
| 3日前予報 | 0/0 | 0/0 | 0/2 | 2/10 | 4/10 | 3/7 | 1/1 | 1/1 | 0/0 | 0/0 | 0/0 | | | 0 | 20 | 40 | 43 | 100 | 100 | | | |
| 4日前予報 | 0/0 | 0/0 | 0/3 | 2/9 | 5/10 | 2/7 | 2/2 | 0/0 | 0/0 | 0/0 | 0/0 | | | 0 | 22 | 50 | 29 | 100 | | | | |
| 5日前予報 | 0/0 | 0/0 | 0/2 | 3/14 | 5/9 | 2/5 | 1/1 | 0/0 | 0/0 | 0/0 | 0/0 | | | 0 | 21 | 56 | 40 | 100 | | | | |
| 6日前予報 | 0/0 | 0/0 | 0/3 | 2/13 | 8/12 | 1/3 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | | | 0 | 15 | 67 | 33 | | | | | |
| 7日前予報 | 0/0 | 0/0 | 0/1 | 3/17 | 7/10 | 1/3 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | | | 0 | 18 | 70 | 33 | | | | | |
2026/08
| | 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 | 0/10 | 0/23 | 2/42 | 2/20 | 1/4 | 6/14 | 4/8 | 1/1 | 1/1 | 1/1 | 0/0 | 0 | 0 | 5 | 10 | 25 | 43 | 50 | 100 | 100 | 100 | |
| 2日前予報 | 0/0 | 0/0 | 0/4 | 3/9 | 2/9 | 3/5 | 2/2 | 1/1 | 1/1 | 0/0 | 0/0 | | | 0 | 33 | 22 | 60 | 100 | 100 | 100 | | |
| 3日前予報 | 0/0 | 0/0 | 0/1 | 2/13 | 4/9 | 5/7 | 1/1 | 0/0 | 0/0 | 0/0 | 0/0 | | | 0 | 15 | 44 | 71 | 100 | | | | |
| 4日前予報 | 0/0 | 0/0 | 0/0 | 2/14 | 3/9 | 6/7 | 1/1 | 0/0 | 0/0 | 0/0 | 0/0 | | | | 14 | 33 | 86 | 100 | | | | |
| 5日前予報 | 0/0 | 0/0 | 0/1 | 4/15 | 5/12 | 3/3 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | | | 0 | 27 | 42 | 100 | | | | | |
| 6日前予報 | 0/0 | 0/0 | 0/2 | 4/14 | 5/11 | 3/4 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | | | 0 | 29 | 45 | 75 | | | | | |
| 7日前予報 | 0/0 | 0/0 | 1/4 | 3/11 | 5/12 | 3/4 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | | | 25 | 27 | 42 | 75 | | | | | |
2026年合計
| | 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 | 0/322 | 3/247 | 8/183 | 13/78 | 4/10 | 33/59 | 14/22 | 24/27 | 15/15 | 6/6 | 3/3 | 0 | 1 | 4 | 17 | 40 | 56 | 64 | 89 | 100 | 100 | 100 |
| 2日前予報 | 0/1 | 0/52 | 1/51 | 11/42 | 12/40 | 16/21 | 12/13 | 9/10 | 10/10 | 3/3 | 0/0 | 0 | 0 | 2 | 26 | 30 | 76 | 92 | 90 | 100 | 100 | |
| 3日前予報 | 0/0 | 0/11 | 0/62 | 11/62 | 16/49 | 22/33 | 10/11 | 11/11 | 4/4 | 0/0 | 0/0 | | 0 | 0 | 18 | 33 | 67 | 91 | 100 | 100 | | |
| 4日前予報 | 0/0 | 0/5 | 0/61 | 11/65 | 17/51 | 24/39 | 11/11 | 9/9 | 2/2 | 0/0 | 0/0 | | 0 | 0 | 17 | 33 | 62 | 100 | 100 | 100 | | |
| 5日前予報 | 0/0 | 0/1 | 1/64 | 16/73 | 20/58 | 23/33 | 8/8 | 6/6 | 0/0 | 0/0 | 0/0 | | 0 | 2 | 22 | 34 | 70 | 100 | 100 | | | |
| 6日前予報 | 0/0 | 0/0 | 3/67 | 15/75 | 28/60 | 26/38 | 1/2 | 1/1 | 0/0 | 0/0 | 0/0 | | | 4 | 20 | 47 | 68 | 50 | 100 | | | |
| 7日前予報 | 0/0 | 0/1 | 4/60 | 19/84 | 28/63 | 23/33 | 0/2 | 0/0 | 0/0 | 0/0 | 0/0 | | 0 | 7 | 23 | 44 | 70 | 0 | | | | |
降水確率的中率のグラフ
戻る
Last updated 2026/09/01
連絡先：tf2