平年値（旬ごとの値）
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美国（後志地方) 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 | 71.3 | -3.4 | -0.7 | -6.7 | 1.5 | 6.7 | /// | /// |
| 中旬 | 61.4 | -4.3 | -1.5 | -7.6 | 1.4 | 9.1 | /// | /// | |
| 下旬 | 71.3 | -4.3 | -1.4 | -7.9 | 1.5 | 10.5 | /// | /// | |
| 2月 | 上旬 | 49.1 | -4.4 | -1.5 | -8.0 | 1.5 | 9.6 | /// | /// |
| 中旬 | 51.0 | -3.5 | -0.7 | -7.1 | 1.7 | 12.3 | /// | /// | |
| 下旬 | 45.1 | -2.4 | 0.8 | -6.5 | 1.7 | 19.5 | /// | /// | |
| 3月 | 上旬 | 43.6 | -1.8 | 1.4 | -5.8 | 1.9 | 23.6 | /// | /// |
| 中旬 | 44.4 | 0.0 | 3.3 | -3.9 | 2.1 | 28.1 | /// | /// | |
| 下旬 | 31.3 | 1.5 | 5.0 | -2.6 | 2.2 | 45.5 | /// | /// | |
| 4月 | 上旬 | 28.6 | 3.6 | 7.2 | -0.8 | 2.2 | 53.3 | /// | /// |
| 中旬 | 34.3 | 5.2 | 9.6 | 0.6 | 2.1 | 57.1 | /// | /// | |
| 下旬 | 33.3 | 7.6 | 12.3 | 2.4 | 2.4 | 59.3 | /// | /// | |
| 5月 | 上旬 | 35.6 | 9.7 | 14.6 | 4.5 | 2.3 | 60.0 | /// | /// |
| 中旬 | 23.3 | 11.3 | 16.4 | 5.7 | 2.1 | 64.1 | /// | /// | |
| 下旬 | 23.6 | 13.0 | 18.5 | 7.3 | 1.9 | 75.9 | /// | /// | |
| 6月 | 上旬 | 16.7 | 14.0 | 19.4 | 8.5 | 1.5 | 59.0 | /// | /// |
| 中旬 | 22.5 | 15.2 | 20.0 | 10.3 | 1.3 | 50.3 | /// | /// | |
| 下旬 | 21.9 | 16.6 | 21.4 | 11.8 | 1.3 | 53.6 | /// | /// | |
| 7月 | 上旬 | 29.0 | 18.1 | 22.7 | 13.5 | 1.2 | 47.2 | /// | /// |
| 中旬 | 39.6 | 19.1 | 23.4 | 14.9 | 1.2 | 46.5 | /// | /// | |
| 下旬 | 55.0 | 20.9 | 25.5 | 16.5 | 1.3 | 54.2 | /// | /// | |
| 8月 | 上旬 | 49.0 | 21.2 | 25.8 | 16.7 | 1.2 | 54.9 | /// | /// |
| 中旬 | 54.9 | 20.7 | 25.3 | 16.2 | 1.1 | 48.1 | /// | /// | |
| 下旬 | 65.8 | 19.8 | 24.8 | 15.1 | 1.2 | 54.6 | /// | /// | |
| 9月 | 上旬 | 71.8 | 18.8 | 24.0 | 13.9 | 1.2 | 52.4 | /// | /// |
| 中旬 | 65.8 | 16.6 | 21.9 | 11.7 | 1.3 | 46.8 | /// | /// | |
| 下旬 | 71.0 | 14.3 | 19.9 | 9.0 | 1.3 | 50.6 | /// | /// | |
| 10月 | 上旬 | 67.0 | 12.3 | 17.8 | 7.2 | 1.4 | 42.3 | /// | /// |
| 中旬 | 61.3 | 10.2 | 15.4 | 5.0 | 1.6 | 40.8 | /// | /// | |
| 下旬 | 67.5 | 8.5 | 13.3 | 3.6 | 1.6 | 37.9 | /// | /// | |
| 11月 | 上旬 | 78.9 | 6.5 | 10.8 | 1.9 | 1.7 | 24.5 | /// | /// |
| 中旬 | 86.5 | 3.2 | 7.1 | -0.6 | 1.6 | 15.9 | /// | /// | |
| 下旬 | 77.9 | 1.2 | 4.8 | -2.2 | 1.6 | 14.2 | /// | /// | |
| 12月 | 上旬 | 79.0 | -1.0 | 2.1 | -4.2 | 1.5 | 8.2 | /// | /// |
| 中旬 | 86.2 | -2.5 | 0.4 | -5.7 | 1.5 | 7.2 | /// | /// | |
| 下旬 | 86.9 | -2.9 | 0.1 | -6.1 | 1.5 | 7.1 | /// | /// | |