平年値（旬ごとの値）
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本川（高知県) 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 | /// | /// | /// | |
| 資料年数 | 30 | 30 | 30 | 30 | 30 | 0 | 0 | 0 | |
| 1月 | 上旬 | 17.1 | 1.9 | 6.4 | -1.8 | 1.0 | /// | /// | /// |
| 中旬 | 27.7 | 1.7 | 6.0 | -1.9 | 0.9 | /// | /// | /// | |
| 下旬 | 31.2 | 1.2 | 5.5 | -2.4 | 1.0 | /// | /// | /// | |
| 2月 | 上旬 | 27.3 | 1.3 | 6.1 | -2.5 | 1.0 | /// | /// | /// |
| 中旬 | 42.7 | 2.4 | 7.4 | -1.7 | 1.0 | /// | /// | /// | |
| 下旬 | 44.3 | 3.7 | 9.2 | -0.8 | 0.9 | /// | /// | /// | |
| 3月 | 上旬 | 57.1 | 4.6 | 10.2 | 0.0 | 0.9 | /// | /// | /// |
| 中旬 | 64.0 | 5.8 | 11.7 | 0.7 | 0.9 | /// | /// | /// | |
| 下旬 | 71.7 | 7.1 | 13.0 | 2.0 | 0.9 | /// | /// | /// | |
| 4月 | 上旬 | 70.8 | 9.3 | 15.7 | 3.8 | 0.8 | /// | /// | /// |
| 中旬 | 78.0 | 10.8 | 17.2 | 5.2 | 0.7 | /// | /// | /// | |
| 下旬 | 72.6 | 12.3 | 18.7 | 6.5 | 0.7 | /// | /// | /// | |
| 5月 | 上旬 | 84.5 | 14.4 | 20.8 | 8.8 | 0.6 | /// | /// | /// |
| 中旬 | 95.3 | 15.0 | 21.5 | 9.5 | 0.5 | /// | /// | /// | |
| 下旬 | 92.7 | 16.1 | 22.5 | 10.9 | 0.5 | /// | /// | /// | |
| 6月 | 上旬 | 83.0 | 17.3 | 23.2 | 12.7 | 0.4 | /// | /// | /// |
| 中旬 | 128.7 | 18.8 | 24.1 | 14.8 | 0.4 | /// | /// | /// | |
| 下旬 | 156.1 | 20.2 | 24.8 | 16.8 | 0.4 | /// | /// | /// | |
| 7月 | 上旬 | 173.7 | 21.7 | 26.6 | 18.3 | 0.4 | /// | /// | /// |
| 中旬 | 106.8 | 22.8 | 28.1 | 19.0 | 0.4 | /// | /// | /// | |
| 下旬 | 181.6 | 23.5 | 29.1 | 19.7 | 0.4 | /// | /// | /// | |
| 8月 | 上旬 | 224.9 | 23.6 | 29.1 | 19.9 | 0.4 | /// | /// | /// |
| 中旬 | 155.2 | 23.3 | 28.8 | 19.6 | 0.4 | /// | /// | /// | |
| 下旬 | 134.0 | 22.5 | 27.8 | 19.0 | 0.4 | /// | /// | /// | |
| 9月 | 上旬 | 175.1 | 21.4 | 26.6 | 17.8 | 0.4 | /// | /// | /// |
| 中旬 | 204.6 | 19.9 | 25.0 | 16.3 | 0.5 | /// | /// | /// | |
| 下旬 | 152.2 | 17.9 | 23.0 | 14.2 | 0.5 | /// | /// | /// | |
| 10月 | 上旬 | 81.5 | 16.3 | 21.6 | 12.4 | 0.5 | /// | /// | /// |
| 中旬 | 72.0 | 14.2 | 20.1 | 9.9 | 0.5 | /// | /// | /// | |
| 下旬 | 69.3 | 12.1 | 17.7 | 7.8 | 0.5 | /// | /// | /// | |
| 11月 | 上旬 | 38.0 | 10.5 | 16.1 | 6.3 | 0.6 | /// | /// | /// |
| 中旬 | 51.6 | 8.7 | 13.8 | 4.5 | 0.7 | /// | /// | /// | |
| 下旬 | 33.6 | 6.8 | 11.9 | 2.6 | 0.7 | /// | /// | /// | |
| 12月 | 上旬 | 37.8 | 4.9 | 9.8 | 1.1 | 0.8 | /// | /// | /// |
| 中旬 | 27.1 | 3.4 | 7.8 | -0.2 | 0.9 | /// | /// | /// | |
| 下旬 | 32.6 | 2.6 | 7.2 | -1.1 | 0.9 | /// | /// | /// | |