平年値（旬ごとの値）
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八代（熊本県) 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 | 30 | 0 | 0 | |
| 1月 | 上旬 | 14.2 | 6.8 | 11.4 | 2.4 | 1.1 | 40.0 | /// | /// |
| 中旬 | 28.7 | 6.4 | 10.8 | 2.2 | 1.0 | 36.0 | /// | /// | |
| 下旬 | 27.9 | 6.1 | 10.6 | 1.8 | 1.1 | 42.7 | /// | /// | |
| 2月 | 上旬 | 29.3 | 6.5 | 11.2 | 2.0 | 1.2 | 45.4 | /// | /// |
| 中旬 | 32.9 | 7.5 | 12.2 | 2.8 | 1.3 | 45.0 | /// | /// | |
| 下旬 | 28.3 | 8.9 | 14.1 | 4.0 | 1.3 | 41.0 | /// | /// | |
| 3月 | 上旬 | 36.6 | 9.4 | 14.4 | 4.5 | 1.4 | 50.5 | /// | /// |
| 中旬 | 36.1 | 10.9 | 16.2 | 5.7 | 1.4 | 53.1 | /// | /// | |
| 下旬 | 46.6 | 12.0 | 17.1 | 7.2 | 1.3 | 57.3 | /// | /// | |
| 4月 | 上旬 | 41.9 | 14.1 | 19.5 | 8.9 | 1.4 | 57.9 | /// | /// |
| 中旬 | 39.7 | 15.5 | 20.9 | 10.4 | 1.3 | 60.0 | /// | /// | |
| 下旬 | 50.1 | 17.0 | 22.4 | 11.8 | 1.3 | 62.0 | /// | /// | |
| 5月 | 上旬 | 57.8 | 18.9 | 24.3 | 14.0 | 1.3 | 59.7 | /// | /// |
| 中旬 | 63.3 | 19.8 | 25.3 | 14.8 | 1.2 | 62.8 | /// | /// | |
| 下旬 | 44.7 | 21.0 | 26.4 | 16.2 | 1.1 | 65.2 | /// | /// | |
| 6月 | 上旬 | 69.3 | 22.2 | 27.2 | 17.9 | 1.0 | 50.5 | /// | /// |
| 中旬 | 156.6 | 23.2 | 27.6 | 19.7 | 1.2 | 40.8 | /// | /// | |
| 下旬 | 200.3 | 24.3 | 28.1 | 21.4 | 1.5 | 30.2 | /// | /// | |
| 7月 | 上旬 | 191.6 | 26.1 | 30.0 | 23.0 | 1.6 | 46.5 | /// | /// |
| 中旬 | 125.6 | 27.1 | 31.6 | 23.7 | 1.4 | 59.3 | /// | /// | |
| 下旬 | 69.5 | 28.0 | 32.8 | 24.4 | 1.2 | 82.1 | /// | /// | |
| 8月 | 上旬 | 54.6 | 28.3 | 33.4 | 24.5 | 1.2 | 73.1 | /// | /// |
| 中旬 | 80.1 | 28.1 | 32.9 | 24.4 | 1.2 | 66.8 | /// | /// | |
| 下旬 | 69.1 | 27.2 | 32.3 | 23.5 | 1.1 | 70.9 | /// | /// | |
| 9月 | 上旬 | 71.8 | 26.0 | 31.0 | 22.3 | 1.1 | 60.1 | /// | /// |
| 中旬 | 60.6 | 24.7 | 29.9 | 20.7 | 1.1 | 59.0 | /// | /// | |
| 下旬 | 64.5 | 22.8 | 27.9 | 18.8 | 1.0 | 51.2 | /// | /// | |
| 10月 | 上旬 | 40.7 | 21.2 | 26.4 | 16.7 | 1.0 | 56.0 | /// | /// |
| 中旬 | 28.3 | 19.3 | 24.9 | 14.5 | 1.0 | 62.3 | /// | /// | |
| 下旬 | 32.2 | 17.3 | 22.6 | 12.6 | 0.9 | 58.8 | /// | /// | |
| 11月 | 上旬 | 34.8 | 15.7 | 21.0 | 11.0 | 0.9 | 52.6 | /// | /// |
| 中旬 | 31.5 | 13.7 | 18.7 | 9.1 | 0.9 | 46.3 | /// | /// | |
| 下旬 | 27.0 | 11.8 | 16.7 | 7.1 | 0.9 | 44.8 | /// | /// | |
| 12月 | 上旬 | 31.1 | 9.8 | 14.6 | 5.3 | 1.0 | 43.3 | /// | /// |
| 中旬 | 20.5 | 8.2 | 12.7 | 3.8 | 1.0 | 40.3 | /// | /// | |
| 下旬 | 21.6 | 7.5 | 12.3 | 3.0 | 1.1 | 47.5 | /// | /// | |