平年値(旬ごとの値)
初山別(留萌地方) 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 | 1991~ 2020 | 1991~ 2020 | |
資料年数 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | |
1月 | 上旬 | 21.3 | -3.7 | -0.8 | -7.4 | 4.9 | 11.4 | 62 | 50 |
中旬 | 17.7 | -5.0 | -1.8 | -9.3 | 4.2 | 18.1 | 63 | 59 | |
下旬 | 18.1 | -5.0 | -1.8 | -9.3 | 4.4 | 21.6 | 66 | 65 | |
2月 | 上旬 | 14.6 | -5.3 | -1.8 | -10.1 | 4.4 | 24.7 | 56 | 67 |
中旬 | 15.7 | -4.3 | -1.2 | -8.8 | 4.5 | 22.6 | 55 | 70 | |
下旬 | 12.9 | -3.2 | 0.3 | -8.3 | 4.3 | 28.5 | 37 | 66 | |
3月 | 上旬 | 15.7 | -2.5 | 0.8 | -7.2 | 4.4 | 37.9 | 40 | 62 |
中旬 | 17.6 | -0.4 | 2.8 | -4.7 | 4.5 | 43.1 | 37 | 54 | |
下旬 | 13.2 | 1.1 | 4.3 | -2.8 | 4.1 | 56.3 | 25 | 37 | |
4月 | 上旬 | 13.6 | 3.3 | 6.7 | -0.8 | 3.8 | 57.9 | 10 | 15 |
中旬 | 17.7 | 4.9 | 9.0 | 0.6 | 3.8 | 59.7 | 1 | 3 | |
下旬 | 17.9 | 7.0 | 11.3 | 2.3 | 3.6 | 58.1 | 0 | 0 | |
5月 | 上旬 | 26.7 | 8.8 | 13.1 | 4.2 | 3.4 | 60.0 | 0 | 0 |
中旬 | 20.0 | 10.5 | 14.8 | 5.7 | 3.1 | 64.6 | 0 | 0 | |
下旬 | 25.5 | 12.4 | 16.8 | 7.7 | 2.8 | 74.9 | 0 | 0 | |
6月 | 上旬 | 22.8 | 13.5 | 17.7 | 9.2 | 2.6 | 59.7 | 0 | 0 |
中旬 | 21.7 | 14.9 | 18.9 | 10.9 | 2.4 | 55.5 | 0 | 0 | |
下旬 | 20.7 | 16.2 | 20.2 | 12.1 | 2.4 | 62.0 | 0 | 0 | |
7月 | 上旬 | 34.1 | 17.8 | 21.7 | 14.0 | 2.2 | 57.1 | 0 | 0 |
中旬 | 36.2 | 18.6 | 22.6 | 14.8 | 2.3 | 57.6 | 0 | 0 | |
下旬 | 58.6 | 20.3 | 24.1 | 16.8 | 2.3 | 57.3 | 0 | 0 | |
8月 | 上旬 | 45.1 | 20.7 | 24.5 | 16.9 | 2.4 | 59.4 | 0 | 0 |
中旬 | 48.3 | 20.4 | 24.2 | 16.5 | 2.4 | 53.8 | 0 | 0 | |
下旬 | 42.8 | 19.6 | 23.9 | 15.5 | 2.7 | 64.3 | 0 | 0 | |
9月 | 上旬 | 49.7 | 18.8 | 23.3 | 14.5 | 2.9 | 62.8 | 0 | 0 |
中旬 | 41.1 | 16.7 | 21.1 | 12.2 | 3.1 | 54.9 | 0 | 0 | |
下旬 | 45.1 | 14.6 | 19.4 | 9.6 | 3.3 | 57.7 | 0 | 0 | |
10月 | 上旬 | 47.5 | 12.8 | 17.3 | 8.1 | 3.8 | 48.9 | 0 | 0 |
中旬 | 45.2 | 10.9 | 14.8 | 6.4 | 4.3 | 39.3 | 0 | 0 | |
下旬 | 50.9 | 9.0 | 12.8 | 4.9 | 4.5 | 35.6 | 0 | 0 | |
11月 | 上旬 | 46.8 | 6.9 | 10.3 | 3.0 | 5.0 | 23.3 | 4 | 3 |
中旬 | 48.9 | 3.9 | 7.1 | 0.6 | 4.9 | 16.7 | 12 | 7 | |
下旬 | 39.6 | 1.9 | 4.7 | -1.2 | 5.4 | 13.0 | 26 | 13 | |
12月 | 上旬 | 32.6 | -0.4 | 2.3 | -3.2 | 5.6 | 8.9 | 45 | 25 |
中旬 | 27.9 | -2.1 | 0.7 | -5.2 | 5.3 | 10.2 | 57 | 36 | |
下旬 | 27.1 | -2.9 | 0.0 | -6.4 | 5.0 | 12.3 | 63 | 43 |