平年値（旬ごとの値）
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八幡（福岡県) 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 | 23.9 | 6.6 | 10.4 | 3.2 | 2.4 | 34.8 | /// | /// |
| 中旬 | 31.0 | 6.2 | 9.7 | 3.0 | 2.1 | 31.4 | /// | /// | |
| 下旬 | 33.0 | 5.7 | 9.3 | 2.4 | 2.3 | 35.6 | /// | /// | |
| 2月 | 上旬 | 21.0 | 6.0 | 9.8 | 2.5 | 2.3 | 35.5 | /// | /// |
| 中旬 | 30.3 | 7.0 | 11.0 | 3.3 | 2.3 | 40.3 | /// | /// | |
| 下旬 | 28.7 | 8.0 | 12.3 | 4.0 | 2.1 | 38.1 | /// | /// | |
| 3月 | 上旬 | 38.0 | 8.7 | 12.8 | 4.8 | 2.3 | 45.7 | /// | /// |
| 中旬 | 33.8 | 10.0 | 14.7 | 5.7 | 2.3 | 54.0 | /// | /// | |
| 下旬 | 42.1 | 11.2 | 15.5 | 7.2 | 2.2 | 59.8 | /// | /// | |
| 4月 | 上旬 | 45.7 | 13.1 | 17.9 | 8.6 | 2.2 | 59.9 | /// | /// |
| 中旬 | 38.3 | 14.7 | 19.6 | 10.3 | 2.3 | 62.4 | /// | /// | |
| 下旬 | 41.7 | 16.3 | 21.2 | 11.7 | 2.3 | 66.3 | /// | /// | |
| 5月 | 上旬 | 47.9 | 18.3 | 23.2 | 13.9 | 2.2 | 64.9 | /// | /// |
| 中旬 | 52.3 | 19.0 | 24.0 | 14.6 | 2.2 | 67.1 | /// | /// | |
| 下旬 | 42.7 | 20.4 | 25.2 | 16.1 | 2.0 | 73.0 | /// | /// | |
| 6月 | 上旬 | 36.9 | 21.7 | 26.3 | 17.8 | 1.8 | 56.8 | /// | /// |
| 中旬 | 73.6 | 22.8 | 27.0 | 19.3 | 2.0 | 50.2 | /// | /// | |
| 下旬 | 129.1 | 23.8 | 27.7 | 20.8 | 2.1 | 32.2 | /// | /// | |
| 7月 | 上旬 | 155.6 | 25.4 | 29.2 | 22.5 | 2.3 | 39.0 | /// | /// |
| 中旬 | 95.8 | 26.8 | 30.8 | 23.7 | 2.4 | 53.7 | /// | /// | |
| 下旬 | 63.2 | 27.9 | 32.0 | 24.8 | 2.2 | 75.0 | /// | /// | |
| 8月 | 上旬 | 49.1 | 28.5 | 32.7 | 25.3 | 2.2 | 71.8 | /// | /// |
| 中旬 | 68.0 | 28.0 | 32.1 | 24.9 | 2.1 | 62.8 | /// | /// | |
| 下旬 | 81.0 | 27.0 | 31.1 | 23.8 | 2.1 | 61.7 | /// | /// | |
| 9月 | 上旬 | 61.1 | 25.7 | 29.7 | 22.4 | 1.9 | 54.7 | /// | /// |
| 中旬 | 53.1 | 24.2 | 28.3 | 20.8 | 1.9 | 53.8 | /// | /// | |
| 下旬 | 51.7 | 22.3 | 26.3 | 18.7 | 1.8 | 51.4 | /// | /// | |
| 10月 | 上旬 | 31.4 | 20.8 | 25.0 | 16.9 | 1.8 | 54.0 | /// | /// |
| 中旬 | 29.1 | 18.9 | 23.4 | 14.8 | 1.8 | 58.2 | /// | /// | |
| 下旬 | 24.7 | 16.9 | 21.4 | 12.8 | 1.8 | 58.3 | /// | /// | |
| 11月 | 上旬 | 30.7 | 15.3 | 19.9 | 11.2 | 1.9 | 50.4 | /// | /// |
| 中旬 | 33.3 | 13.3 | 17.5 | 9.3 | 1.9 | 41.5 | /// | /// | |
| 下旬 | 27.8 | 11.5 | 15.8 | 7.5 | 1.9 | 39.6 | /// | /// | |
| 12月 | 上旬 | 29.1 | 9.5 | 13.6 | 5.7 | 2.1 | 35.3 | /// | /// |
| 中旬 | 22.3 | 8.1 | 11.9 | 4.6 | 2.3 | 30.9 | /// | /// | |
| 下旬 | 24.5 | 7.4 | 11.3 | 3.8 | 2.3 | 36.8 | /// | /// | |