平年値（旬ごとの値）
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支笏湖畔（石狩地方) 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 | 30.6 | -4.2 | -1.4 | -7.2 | 1.7 | 35.6 | /// | /// |
| 中旬 | 21.0 | -5.0 | -2.2 | -8.1 | 1.5 | 38.9 | /// | /// | |
| 下旬 | 37.9 | -5.1 | -2.1 | -8.4 | 1.6 | 43.4 | /// | /// | |
| 2月 | 上旬 | 19.6 | -5.3 | -2.1 | -8.7 | 1.6 | 38.3 | /// | /// |
| 中旬 | 28.5 | -4.4 | -1.3 | -7.9 | 1.7 | 39.0 | /// | /// | |
| 下旬 | 24.2 | -3.4 | 0.1 | -7.0 | 1.5 | 39.3 | /// | /// | |
| 3月 | 上旬 | 40.9 | -2.7 | 0.7 | -6.2 | 1.6 | 44.7 | /// | /// |
| 中旬 | 20.6 | -1.0 | 2.4 | -4.4 | 1.6 | 44.7 | /// | /// | |
| 下旬 | 32.3 | 0.5 | 4.1 | -2.9 | 1.5 | 59.1 | /// | /// | |
| 4月 | 上旬 | 23.9 | 2.5 | 6.4 | -0.9 | 1.5 | 56.6 | /// | /// |
| 中旬 | 35.4 | 4.2 | 8.5 | 0.6 | 1.5 | 60.5 | /// | /// | |
| 下旬 | 43.7 | 6.4 | 11.3 | 2.3 | 1.5 | 62.2 | /// | /// | |
| 5月 | 上旬 | 50.2 | 8.2 | 13.3 | 4.0 | 1.4 | 59.8 | /// | /// |
| 中旬 | 42.9 | 9.7 | 15.0 | 5.4 | 1.2 | 59.1 | /// | /// | |
| 下旬 | 50.8 | 11.7 | 17.2 | 7.4 | 1.0 | 66.4 | /// | /// | |
| 6月 | 上旬 | 45.3 | 12.7 | 17.7 | 8.7 | 0.8 | 53.4 | /// | /// |
| 中旬 | 50.5 | 13.9 | 18.5 | 10.4 | 0.8 | 46.0 | /// | /// | |
| 下旬 | 42.2 | 15.5 | 20.0 | 12.0 | 0.8 | 49.6 | /// | /// | |
| 7月 | 上旬 | 53.0 | 16.8 | 21.0 | 13.6 | 0.7 | 40.0 | /// | /// |
| 中旬 | 53.7 | 18.0 | 21.9 | 15.0 | 0.7 | 40.0 | /// | /// | |
| 下旬 | 57.1 | 19.2 | 23.1 | 16.4 | 0.7 | 43.4 | /// | /// | |
| 8月 | 上旬 | 55.3 | 20.1 | 23.9 | 17.1 | 0.7 | 46.0 | /// | /// |
| 中旬 | 75.0 | 19.4 | 23.0 | 16.7 | 0.7 | 36.5 | /// | /// | |
| 下旬 | 86.7 | 18.9 | 22.7 | 16.0 | 0.7 | 49.5 | /// | /// | |
| 9月 | 上旬 | 95.4 | 18.2 | 21.9 | 15.1 | 0.8 | 47.7 | /// | /// |
| 中旬 | 85.3 | 16.2 | 20.1 | 13.0 | 0.9 | 48.8 | /// | /// | |
| 下旬 | 81.3 | 14.1 | 18.1 | 10.6 | 0.9 | 52.2 | /// | /// | |
| 10月 | 上旬 | 65.7 | 12.2 | 16.3 | 8.7 | 1.0 | 49.5 | /// | /// |
| 中旬 | 60.1 | 10.1 | 14.3 | 6.3 | 1.1 | 53.6 | /// | /// | |
| 下旬 | 68.0 | 8.4 | 12.2 | 4.8 | 1.3 | 49.2 | /// | /// | |
| 11月 | 上旬 | 46.4 | 6.2 | 9.9 | 2.7 | 1.5 | 41.6 | /// | /// |
| 中旬 | 46.4 | 3.3 | 6.8 | 0.0 | 1.6 | 35.9 | /// | /// | |
| 下旬 | 44.6 | 1.1 | 4.3 | -2.0 | 1.7 | 34.6 | /// | /// | |
| 12月 | 上旬 | 36.4 | -1.2 | 1.8 | -4.1 | 1.6 | 32.9 | /// | /// |
| 中旬 | 25.6 | -2.8 | 0.0 | -5.7 | 1.7 | 34.5 | /// | /// | |
| 下旬 | 35.4 | -3.5 | -0.6 | -6.5 | 1.6 | 36.1 | /// | /// | |