旬ごとの値
 |  |
 |  |
 |  |  |  |  |
 |  |  |  |  |  |
 |  |  |  |
成田（千葉県) 2021年（旬ごとの値） 主な要素
| 月 | 旬 | 降水量 | 気温 | 湿度 | 風向・風速 | 日照 時間 (h) |
雪 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 合計 (mm) | 最大 | 平均 | 最高 (℃) | 最低 (℃) |
平均 (％) | 最小 (％) |
平均 風速 (m/s) | 最大風速 | 最大瞬間風速 | 降雪の深さ | 最深 積雪 (cm) |
||||||||||
| 日 (mm) | 1時間 (mm) | 10分間 (mm) |
日平均 (℃) | 日最高 (℃) | 日最低 (℃) |
風速 (m/s) | 風向 | 風速 (m/s) | 風向 | 合計 (cm) | 日合計の最大 (cm) |
||||||||||
| 上旬 | 0.0 | 0.0 | 0.0 | 0.0 | 2.3 | 8.7 | -3.6 | 11.8 | -7.8 | /// | /// | 2.8 | 13.5 | 南西 | 21.1 | 南西 | /// | /// | /// | /// | |
| 中旬 | 7.0 | 4.5 | 1.5 | 0.5 | 3.9 | 9.2 | -2.2 | 17.9 | -6.9 | /// | /// | 3.2 | 10.8 | 北北西 | 18.0 | 南南西 | /// | /// | /// | /// | |
| 下旬 | 35.5 | 17.0 | 3.0 | 1.0 | 5.3 | 11.1 | -0.3 | 16.0 | -5.6 | /// | /// | 4.1 | 11.2 | 北西 | 17.0 | 西北西 | /// | /// | /// | /// | |
| 上旬 | 18.5 | 18.5 | 10.0 | 2.5 | 5.9 | 12.4 | -1.3 | 16.7 | -5.2 | /// | /// | 3.0 | 9.9 | 北西 | 15.4 | 北西 | /// | /// | /// | /// | |
| 中旬 | 58.0 | 58.0 | 18.5 | 5.5 | 7.8 | 14.2 | 0.2 | 18.6 | -5.7 | /// | /// | 3.5 | 14.4 | 南南西 | 23.1 | 南南西 | /// | /// | /// | /// | |
| 下旬 | 0.0 | 0.0 | 0.0 | 0.0 | 7.8 | 14.0 | 0.3 | 21.7 | -4.9 | /// | /// | 3.4 | 12.1 | 北 | 16.5 | 北北東 | /// | /// | /// | /// | |
| 上旬 | 33.0 | 18.0 | 10.5 | 4.0 | 9.5 | 14.8 | 4.4 | 20.8 | -0.3 | /// | /// | 4.1 | 10.0 | 北北西 | 17.5 | 北西 | /// | /// | /// | /// | |
| 中旬 | 64.5 | 64.5 | 15.0 | 5.5 | 11.4 | 17.1 | 4.6 | 20.5 | -1.6 | /// | /// | 3.5 | 12.0 | 東 | 20.1 | 東 | /// | /// | /// | /// | |
| 下旬 | 47.0 | 19.5 | 10.0 | 2.5 | 13.7 | 19.5 | 7.6 | 22.7 | 1.9 | /// | /// | 3.5 | 12.6 | 南南東 | 18.5 | 南南東 | /// | /// | /// | /// | |
| 上旬 | 50.0 | 27.0 | 12.0 | 3.5 | 12.9 | 18.1 | 8.3 | 22.9 | 4.9 | /// | /// | 4.2 | 10.6 | 北北東 | 15.9 | 北北東 | /// | /// | /// | /// | |
| 中旬 | 33.5 | 13.5 | 7.0 | 2.5 | 13.8 | 19.6 | 7.6 | 24.8 | 3.8 | /// | /// | 4.2 | 13.5 | 南南東 | 21.1 | 南 | /// | /// | /// | /// | |
| 下旬 | 54.0 | 53.5 | 18.5 | 5.0 | 14.7 | 20.8 | 8.0 | 26.1 | 2.7 | /// | /// | 4.2 | 10.8 | 北東 | 15.4 | 南南東 | /// | /// | /// | /// | |
| 上旬 | 18.0 | 7.0 | 4.5 | 1.5 | 17.7 | 23.2 | 11.6 | 26.8 | 9.0 | /// | /// | 3.8 | 12.2 | 南西 | 19.5 | 南西 | /// | /// | /// | /// | |
| 中旬 | 30.5 | 15.5 | 9.0 | 2.0 | 18.9 | 22.4 | 15.2 | 27.3 | 11.3 | /// | /// | 3.7 | 11.5 | 南西 | 19.5 | 南西 | /// | /// | /// | /// | |
| 下旬 | 49.0 | 31.0 | 9.5 | 3.5 | 19.9 | 24.3 | 15.5 | 27.4 | 12.1 | /// | /// | 3.5 | 10.2 | 南南西 | 17.5 | 南西 | /// | /// | /// | /// | |
| 上旬 | 18.5 | 9.0 | 6.5 | 1.5 | 20.8 | 25.8 | 16.5 | 29.7 | 13.8 | /// | /// | 3.1 | 11.8 | 南南東 | 18.0 | 南南東 | /// | /// | /// | /// | |
| 中旬 | 54.5 | 33.5 | 12.0 | 4.0 | 21.5 | 26.2 | 17.7 | 28.2 | 15.7 | /// | /// | 3.4 | 10.0 | 北北東 | 13.9 | 北北西 | /// | /// | /// | /// | |
| 下旬 | 50.5 | 33.5 | 15.5 | 4.0 | 21.6 | 25.8 | 18.3 | 27.2 | 16.5 | /// | /// | 3.3 | 10.1 | 北北東 | 14.4 | 北 | /// | /// | /// | /// | |
| 上旬 | 224.5 | 111.5 | 37.0 | 8.0 | 22.7 | 25.5 | 20.8 | 32.3 | 19.1 | /// | /// | 2.7 | 10.0 | 東南東 | 13.4 | 東南東 | /// | /// | /// | /// | |
| 中旬 | 35.5 | 20.0 | 20.0 | 11.0 | 25.3 | 30.0 | 21.3 | 32.2 | 19.1 | /// | /// | 2.8 | 14.4 | 北北西 | 19.0 | 北北西 | /// | /// | /// | /// | |
| 下旬 | 50.5 | 29.5 | 19.5 | 13.5 | 25.9 | 30.5 | 22.1 | 31.8 | 21.4 | /// | /// | 3.7 | 11.1 | 北 | 14.9 | 北 | /// | /// | /// | /// | |
| 上旬 | 144.5 | 143.0 | 22.0 | 6.5 | 27.4 | 31.3 | 23.9 | 34.1 | 21.9 | /// | /// | 4.1 | 14.1 | 北北東 | 20.1 | 南西 | /// | /// | /// | /// | |
| 中旬 | 165.5 | 82.5 | 21.0 | 6.5 | 24.5 | 28.0 | 21.7 | 33.3 | 19.1 | /// | /// | 4.0 | 9.3 | 南南西 | 14.9 | 南西 | /// | /// | /// | /// | |
| 下旬 | 35.5 | 25.0 | 15.0 | 7.0 | 27.2 | 31.6 | 23.3 | 34.0 | 20.0 | /// | /// | 2.7 | 7.5 | 東北東 | 11.3 | 西南西 | /// | /// | /// | /// | |
| 上旬 | 64.5 | 13.5 | 13.0 | 3.0 | 20.8 | 23.9 | 18.4 | 28.6 | 15.4 | /// | /// | 4.0 | 9.7 | 北北東 | 13.9 | 北北東 | /// | /// | /// | /// | |
| 中旬 | 50.5 | 31.0 | 6.5 | 5.5 | 22.5 | 26.5 | 19.2 | 28.6 | 15.5 | /// | /// | 3.6 | 10.2 | 北東 | 14.4 | 北東 | /// | /// | /// | /// | |
| 下旬 | 6.5 | 5.5 | 5.0 | 2.0 | 22.0 | 26.8 | 17.9 | 31.2 | 15.8 | /// | /// | 3.5 | 8.7 | 北東 | 12.3 | 北東 | /// | /// | /// | /// | |
| 上旬 | 92.5 | 84.0 | 14.0 | 3.5 | 21.5 | 26.3 | 17.6 | 28.9 | 14.0 | /// | /// | 3.8 | 18.7 | 北 | 25.7 | 北 | /// | /// | /// | /// | |
| 中旬 | 37.0 | 18.5 | 4.0 | 1.5 | 17.5 | 21.8 | 13.3 | 28.1 | 9.3 | /// | /// | 4.0 | 10.6 | 北西 | 16.5 | 北西 | /// | /// | /// | /// | |
| 下旬 | 61.0 | 29.0 | 12.5 | 3.0 | 13.4 | 18.0 | 8.1 | 21.4 | 3.0 | /// | /// | 3.5 | 11.3 | 北 | 14.4 | 北 | /// | /// | /// | /// | |
| 上旬 | 66.0 | 63.5 | 22.5 | 7.5 | 15.3 | 19.9 | 10.9 | 22.0 | 7.9 | /// | /// | 3.4 | 9.5 | 南西 | 14.9 | 南西 | /// | /// | /// | /// | |
| 中旬 | 0.5 | 0.5 | 0.5 | 0.5 | 12.1 | 18.4 | 6.2 | 20.7 | 2.8 | /// | /// | 2.5 | 9.1 | 南西 | 15.9 | 南西 | /// | /// | /// | /// | |
| 下旬 | 34.0 | 28.5 | 7.0 | 2.0 | 9.8 | 15.9 | 3.2 | 18.3 | -1.0 | /// | /// | 2.6 | 11.6 | 北西 | 18.5 | 南南東 | /// | /// | /// | /// | |
| 上旬 | 111.0 | 54.5 | 21.5 | 8.5 | 9.4 | 14.1 | 4.3 | 20.8 | 0.0 | /// | /// | 4.8 | 13.9 | 南南東 | 22.6 | 南 | /// | /// | /// | /// | |
| 中旬 | 22.0 | 19.0 | 10.0 | 2.5 | 5.9 | 12.0 | -1.1 | 17.0 | -5.3 | /// | /// | 2.6 | 11.1 | 北西 | 18.0 | 北西 | /// | /// | /// | /// | |
| 下旬 | 6.0 | 6.0 | 1.5 | 0.5 | 4.1 | 10.7 | -2.2 | 15.6 | -6.7 | /// | /// | 2.9 | 9.0 | 北西 | 14.4 | 北西 | /// | /// | /// | /// | |
- 値欄の記号の説明
- 2021年3月2日より、アメダスの日照時間は「推計気象分布（日照時間）」から得る推計値となりましたので、日照計による観測値と単純比較できません。詳しくは要素ごとの値の補足説明をご覧ください。