平年値（旬ごとの値）
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江戸川臨海（東京都) 平年値（旬ごとの値）
| 要素 | 降水量 (mm) | 平均気温 (℃) | 日最高気温 (℃) | 日最低気温 (℃) | 平均風速 (m/s) | 日照時間 (h) | 降雪の深さ合計 (cm) | 最深積雪 (cm) | |
|---|---|---|---|---|---|---|---|---|---|
| 統計期間 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | 1991～ 2020 | /// | /// | |
| 資料年数 | 30 | 30 | 30 | 30 | 30 | 22 | 0 | 0 | |
| 1月 | 上旬 | 10.5 | 6.5 | 10.4 | 2.8 | 3.4 | /// | /// | /// |
| 中旬 | 17.4 | 5.8 | 9.6 | 2.3 | 3.5 | /// | /// | /// | |
| 下旬 | 22.2 | 5.8 | 9.6 | 2.2 | 3.7 | /// | /// | /// | |
| 2月 | 上旬 | 13.0 | 5.9 | 10.0 | 2.3 | 3.7 | /// | /// | /// |
| 中旬 | 21.6 | 6.4 | 10.4 | 2.7 | 3.7 | /// | /// | /// | |
| 下旬 | 16.3 | 7.3 | 11.2 | 3.6 | 4.0 | /// | /// | /// | |
| 3月 | 上旬 | 40.2 | 8.0 | 12.0 | 4.4 | 3.9 | /// | /// | /// |
| 中旬 | 24.0 | 9.6 | 13.7 | 5.5 | 4.3 | /// | /// | /// | |
| 下旬 | 38.8 | 10.4 | 14.4 | 6.7 | 4.1 | /// | /// | /// | |
| 4月 | 上旬 | 40.9 | 12.4 | 16.5 | 8.6 | 4.4 | /// | /// | /// |
| 中旬 | 42.1 | 14.0 | 18.0 | 10.3 | 4.4 | /// | /// | /// | |
| 下旬 | 28.8 | 15.7 | 19.6 | 12.2 | 4.5 | /// | /// | /// | |
| 5月 | 上旬 | 28.2 | 17.3 | 21.1 | 13.9 | 4.6 | /// | /// | /// |
| 中旬 | 44.4 | 18.1 | 21.8 | 14.9 | 4.3 | /// | /// | /// | |
| 下旬 | 49.9 | 19.6 | 23.5 | 16.4 | 4.3 | /// | /// | /// | |
| 6月 | 上旬 | 38.8 | 20.7 | 24.4 | 17.6 | 4.0 | /// | /// | /// |
| 中旬 | 60.9 | 21.5 | 25.0 | 18.9 | 4.0 | /// | /// | /// | |
| 下旬 | 50.6 | 22.5 | 25.8 | 19.9 | 3.8 | /// | /// | /// | |
| 7月 | 上旬 | 59.8 | 24.0 | 27.5 | 21.5 | 4.4 | /// | /// | /// |
| 中旬 | 37.8 | 25.2 | 28.6 | 22.7 | 4.4 | /// | /// | /// | |
| 下旬 | 31.5 | 26.1 | 29.7 | 23.7 | 4.3 | /// | /// | /// | |
| 8月 | 上旬 | 21.0 | 27.1 | 30.8 | 24.5 | 4.5 | /// | /// | /// |
| 中旬 | 37.7 | 26.9 | 30.5 | 24.4 | 4.4 | /// | /// | /// | |
| 下旬 | 49.3 | 26.3 | 29.7 | 23.7 | 4.3 | /// | /// | /// | |
| 9月 | 上旬 | 61.8 | 25.5 | 29.0 | 22.9 | 4.3 | /// | /// | /// |
| 中旬 | 70.1 | 23.9 | 27.3 | 21.1 | 3.8 | /// | /// | /// | |
| 下旬 | 63.8 | 21.4 | 24.8 | 18.6 | 3.7 | /// | /// | /// | |
| 10月 | 上旬 | 90.3 | 20.2 | 23.5 | 17.4 | 3.7 | /// | /// | /// |
| 中旬 | 58.5 | 18.5 | 22.0 | 15.5 | 3.5 | /// | /// | /// | |
| 下旬 | 56.9 | 16.8 | 20.3 | 13.6 | 3.3 | /// | /// | /// | |
| 11月 | 上旬 | 24.7 | 15.1 | 18.8 | 11.7 | 3.1 | /// | /// | /// |
| 中旬 | 38.1 | 13.3 | 16.9 | 9.9 | 3.3 | /// | /// | /// | |
| 下旬 | 27.8 | 11.5 | 15.2 | 8.1 | 3.2 | /// | /// | /// | |
| 12月 | 上旬 | 22.5 | 9.8 | 13.4 | 6.5 | 3.3 | /// | /// | /// |
| 中旬 | 12.7 | 8.3 | 12.1 | 4.7 | 3.2 | /// | /// | /// | |
| 下旬 | 18.0 | 7.4 | 11.3 | 3.7 | 3.4 | /// | /// | /// | |