半旬ごとの値
 |  |
 |  |
 |  |  |  |  |
 |  |  |  |  |  |
 |  |  |  |
初山別（留萌地方) 1980年（半旬ごとの値） 主な要素
| 月 | 半旬 | 日～日 | 降水量 | 気温 | 湿度 | 風向・風速 | 日照 時間 (h) |
雪 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 合計 (mm) | 最大 | 平均 | 最高 (℃) | 最低 (℃) |
平均 (％) | 最小 (％) |
平均 風速 (m/s) | 最大 | 最大瞬間 | 降雪の深さ | 最深 積雪 (cm) |
|||||||||||
| 日 (mm) | 1時間 (mm) | 10分間 (mm) |
日平均 (℃) | 日最高 (℃) | 日最低 (℃) |
風速 (m/s) | 風向 | 風速 (m/s) | 風向 | 合計 (cm) | 日合計の最大 (cm) |
|||||||||||
| 第1半旬 | 1～ 5 | 16 | 11 | 3 | /// | -3.6 | 0.0 | -7.7 | 5.0 | -9.2 | /// | /// | 5.2 | 14 | 西北西 | /// | /// | 5.0 | /// | /// | /// | |
| 第2半旬 | 6～10 | 14 | 4 | 2 | /// | -6.9 | -4.1 | -9.3 | 1.1 | -12.9 | /// | /// | 4.3 | 12 | 南南西 | /// | /// | 7.5 | /// | /// | /// | |
| 第3半旬 | 11～15 | 11 | 5 | 2 | /// | -6.5 | -3.7 | -9.6 | -1.6 | -12.9 | /// | /// | 4.2 | 12 | 西北西 | /// | /// | 9.7 | /// | /// | /// | |
| 第4半旬 | 16～20 | 10 | 3 | 1 | /// | -4.1 | -2.2 | -6.9 | -0.7 | -9.0 | /// | /// | 3.5 | 9 | 西南西 | /// | /// | 4.6 | /// | /// | /// | |
| 第5半旬 | 21～25 | 15 | 6 | 2 | /// | -7.9 | -4.5 | -14.2 | -3.0 | -20.8 | /// | /// | 2.6 | 8 | 西北西 | /// | /// | 12.6 | /// | /// | /// | |
| 第6半旬 | 26～31 | 13 | 5 | 1 | /// | -1.9 | 1.4 | -6.5 | 4.3 | -11.1 | /// | /// | 3.6 | 10 | 南南西 | /// | /// | 11.4 | /// | /// | /// | |
| 第1半旬 | 1～ 5 | 10 | 5 | 1 | /// | -6.0 | -4.6 | -7.9 | -2.1 | -11.7 | /// | /// | 6.4 | 15 | 西南西 | /// | /// | 6.6 | /// | /// | /// | |
| 第2半旬 | 6～10 | 5 | 5 | 1 | /// | -9.2 | -3.7 | -16.7 | -2.2 | -18.7 | /// | /// | 1.9 | 6 | 北北西 | /// | /// | 31.8 | /// | /// | /// | |
| 第3半旬 | 11～15 | 16 | 6 | 2 | /// | -8.3 | -6.9 ) | -12.1 ) | -2.0 ) | -15.9 ) | /// | /// | 4.5 | 9 ) | 北西 | /// | /// | 13.1 | /// | /// | /// | |
| 第4半旬 | 16～20 | 10 | 6 | 3 | /// | -9.0 | -4.5 | -16.2 | -0.2 | -20.6 | /// | /// | 2.7 | 8 | 北西 | /// | /// | 23.3 | /// | /// | /// | |
| 第5半旬 | 21～25 | 9 | 5 | 2 | /// | -8.3 | -4.5 ) | -17.5 ) | -1.3 ] | -21.8 ) | /// | /// | 3.0 | 11 ] | 西北西 | /// | /// | 33.3 | /// | /// | /// | |
| 第6半旬 | 26～29 | 3 | 3 | 1 | /// | -3.2 | -0.5 | -7.5 | 1.8 | -12.6 | /// | /// | 4.6 | 9 | 西北西 | /// | /// | 14.7 | /// | /// | /// | |
| 第1半旬 | 1～ 5 | 10 | 5 | 4 | /// | -2.2 | 0.2 ) | -5.5 ) | 4.2 ) | -8.0 ) | /// | /// | 4.8 | 17 | /// | /// | /// | 27.8 | /// | /// | /// | |
| 第2半旬 | 6～10 | 13 | 13 | 2 | /// | -1.2 | 1.8 ) | -5.8 ) | 3.7 ) | -9.1 ) | /// | /// | 3.1 | 11 ) | 北北西 | /// | /// | 30.5 | /// | /// | /// | |
| 第3半旬 | 11～15 | 3 | 2 | 1 ) | /// | -2.9 | -1.5 ) | -4.3 ) | 0.7 ) | -6.6 ) | /// | /// | 6.3 | 14 ) | 北西 | /// | /// | 16.6 | /// | /// | /// | |
| 第4半旬 | 16～20 | 6 | 3 | 1 | /// | -3.9 | -1.8 | -7.7 | -0.3 | -9.7 | /// | /// | 4.1 | 11 | 西北西 | /// | /// | 24.2 | /// | /// | /// | |
| 第5半旬 | 21～25 | 2 | 1 | 1 | /// | -3.4 | 0.4 ) | -10.2 ) | 1.7 ) | -14.0 ) | /// | /// | 3.7 | 9 ) | 西北西 | /// | /// | 40.2 | /// | /// | /// | |
| 第6半旬 | 26～31 | 3 | 1 | 1 | /// | 2.9 | 5.7 ) | 0.1 ) | 9.2 ) | -3.1 ) | /// | /// | 3.9 | 10 ) | 南南西 | /// | /// | 41.9 | /// | /// | /// | |
| 第1半旬 | 1～ 5 | 18 | 18 | 5 | /// | 2.7 | 5.6 | -0.5 | 10.6 | -4.0 | /// | /// | 3.7 | 9 | 南南西 | /// | /// | 20.1 | /// | /// | /// | |
| 第2半旬 | 6～10 | 14 | 6 | 1 | /// | 0.3 | 2.7 | -2.4 | 5.7 | -4.2 | /// | /// | 2.5 | 7 | 北西 | /// | /// | 15.8 | /// | /// | /// | |
| 第3半旬 | 11～15 | 9 | 5 | 2 | /// | 0.5 | 3.0 | -2.5 | 3.9 | -5.4 | /// | /// | 2.1 | 6 | 北西 | /// | /// | 20.5 | /// | /// | /// | |
| 第4半旬 | 16～20 | 6 | 6 | 2 | /// | 3.0 | 8.0 | -2.3 | 13.4 | -5.4 | /// | /// | 3.0 | 10 | 南東 | /// | /// | 38.4 | /// | /// | /// | |
| 第5半旬 | 21～25 | 2 | 1 | 1 | /// | 4.1 | 6.8 | 0.8 | 7.8 | -2.5 | /// | /// | 3.1 | 7 | 南南西 | /// | /// | 35.4 | /// | /// | /// | |
| 第6半旬 | 26～30 | 8 | 4 | 1 | /// | 4.0 | 7.4 ) | 1.3 ) | 10.7 ) | -1.6 ] | /// | /// | 2.5 | 9 ) | 北西 | /// | /// | 33.1 | /// | /// | /// | |
| 第1半旬 | 1～ 5 | 9 | 6 | 2 | /// | 6.3 | 10.7 | 3.4 | 13.0 | 0.4 | /// | /// | 2.3 | 7 | 南南西 | /// | /// | 13.7 | /// | /// | /// | |
| 第2半旬 | 6～10 | 1 | 1 | 1 | /// | 4.9 | 8.1 | 1.2 | 12.1 | -2.1 | /// | /// | 2.9 | 7 | 南南西 | /// | /// | 32.4 | /// | /// | /// | |
| 第3半旬 | 11～15 | 10 | 6 | 2 | /// | 10.0 | 14.0 | 7.2 | 15.7 | 4.8 | /// | /// | 2.2 | 5 | 南南西 | /// | /// | 23.7 | /// | /// | /// | |
| 第4半旬 | 16～20 | 2 | 1 | 1 ] | /// | 10.9 | 15.1 ] | 7.6 ] | 20.4 ] | 5.0 ] | /// | /// | 3.8 | 7 ] | 南南西 | /// | /// | 44.5 | /// | /// | /// | |
| 第5半旬 | 21～25 | 0 | 0 | 0 | /// | 12.0 | 15.6 | 8.2 | 19.2 | 6.4 | /// | /// | 2.6 | 6 | 南南西 | /// | /// | 28.8 | /// | /// | /// | |
| 第6半旬 | 26～31 | 8 | 7 | 2 | /// | 13.7 | 17.1 ) | 8.4 ) | 21.2 ] | 4.7 ) | /// | /// | 4.4 | 10 | 南西 | /// | /// | 31.2 | /// | /// | /// | |
| 第1半旬 | 1～ 5 | 0 | 0 | 0 | /// | 16.7 | 20.7 | 13.4 | 24.5 | 11.3 | /// | /// | 3.9 | 8 | 南西 | /// | /// | 40.2 | /// | /// | /// | |
| 第2半旬 | 6～10 | 2 | 2 | 1 | /// | 16.9 | 22.1 ) | 13.6 ) | 23.9 ) | 10.5 ] | /// | /// | 2.2 | 7 ) | 南南西 | /// | /// | 30.3 | /// | /// | /// | |
| 第3半旬 | 11～15 | 35 | 23 | 11 | /// | 14.0 | 16.0 | 12.3 | 18.5 | 11.8 | /// | /// | 1.6 | 6 | 南南東 | /// | /// | 3.2 | /// | /// | /// | |
| 第4半旬 | 16～20 | 13 ] | 13 ] | 9 ] | /// | 12.6 | 15.4 | 8.5 | 19.3 | 4.8 | /// | /// | 2.4 | 6 | 東 | /// | /// | 27.8 | /// | /// | /// | |
| 第5半旬 | 21～25 | 0 | 0 | 0 | /// | 15.8 | 19.9 | 11.4 | 22.4 | 9.4 | /// | /// | 2.2 | 5 | 南南西 | /// | /// | 35.9 | /// | /// | /// | |
| 第6半旬 | 26～30 | 0 | 0 | 0 | /// | 16.1 | 21.7 | 10.4 | 26.3 | 8.0 | /// | /// | 2.1 | 5 | 東北東 | /// | /// | 56.8 | /// | /// | /// | |
| 第1半旬 | 1～ 5 | 1 | 1 | 1 | /// | 15.9 | 18.6 | 12.9 | 21.5 | 10.8 | /// | /// | 1.6 | 4 | 北北西 | /// | /// | 26.6 | /// | /// | /// | |
| 第2半旬 | 6～10 | 1 | 1 | 1 | /// | 18.3 | 20.3 | 16.3 | 22.7 | 14.9 | /// | /// | 1.6 | 4 | 北北西 | /// | /// | 22.7 | /// | /// | /// | |
| 第3半旬 | 11～15 | 0 | 0 | 0 | /// | 18.2 | 21.3 | 14.9 | 24.6 | 10.2 | /// | /// | 2.2 | 7 | 東 | /// | /// | 26.3 | /// | /// | /// | |
| 第4半旬 | 16～20 | 0 | 0 | 0 | /// | 17.3 | 20.4 ] | 12.7 ] | 21.3 ] | 10.9 ] | /// | /// | 1.6 | 4 ] | 西北西 | /// | /// | 32.2 | /// | /// | /// | |
| 第5半旬 | 21～25 | 68 | 48 | 25 | /// | 19.4 | 22.1 ) | 16.2 ) | 26.8 ] | 14.4 ) | /// | /// | 2.3 | 5 | 東 | /// | /// | 14.2 | /// | /// | /// | |
| 第6半旬 | 26～31 | 0 | 0 | 0 | /// | 17.2 | 22.3 ) | 12.2 ) | 26.4 ) | 10.1 ) | /// | /// | 2.1 | 5 | 東 | /// | /// | 65.6 | /// | /// | /// | |
| 第1半旬 | 1～ 5 | 0 | 0 | 0 | /// | 18.1 | 24.0 | 12.3 | 26.8 | 10.7 | /// | /// | 2.4 | 5 | 北北西 | /// | /// | 61.2 | /// | /// | /// | |
| 第2半旬 | 6～10 | 0 | 0 | 0 | /// | 17.7 | 23.3 | 12.6 | 28.0 | 9.6 | /// | /// | 2.0 | 5 | 東 | /// | /// | 55.2 | /// | /// | /// | |
| 第3半旬 | 11～15 | 0 | 0 | 0 | /// | 18.4 | 21.7 | 14.8 | 23.9 | 12.0 | /// | /// | 2.4 | 7 | 東 | /// | /// | 20.3 | /// | /// | /// | |
| 第4半旬 | 16～20 | 14 | 13 | 5 | /// | 17.2 | 19.9 | 14.1 | 21.4 | 7.1 | /// | /// | 1.4 | 4 | 北西 | /// | /// | 21.7 | /// | /// | /// | |
| 第5半旬 | 21～25 | 6 | 6 | 1 | /// | 18.4 | 21.6 | 15.0 | 22.9 | 13.4 | /// | /// | 2.0 | 7 | 東 | /// | /// | 27.8 | /// | /// | /// | |
| 第6半旬 | 26～31 | 61 | 47 | 7 | /// | 15.6 | 19.6 ) | 10.8 ) | 22.7 ) | 6.7 ) | /// | /// | 1.8 | 6 | 東 | /// | /// | 24.5 | /// | /// | /// | |
| 第1半旬 | 1～ 5 | 32 | 30 | 12 | /// | 17.3 | 20.5 | 13.8 | 21.9 | 11.8 | /// | /// | 2.1 | 5 | 南南東 | /// | /// | 33.4 | /// | /// | /// | |
| 第2半旬 | 6～10 | 0 | 0 | 0 | /// | 17.1 | 20.9 | 12.4 | 22.0 | 9.9 | /// | /// | 2.8 | 7 | 南南西 | /// | /// | 38.4 | /// | /// | /// | |
| 第3半旬 | 11～15 | 29 | 24 | 7 | /// | 18.4 | 21.5 | 16.1 | 28.9 | 14.5 | /// | /// | 3.8 | 10 | 東南東 | /// | /// | 16.5 | /// | /// | /// | |
| 第4半旬 | 16～20 | 0 | 0 | 0 | /// | 17.0 | 20.2 | 13.0 | 20.7 | 11.0 | /// | /// | 3.5 | 7 | 西南西 | /// | /// | 36.9 | /// | /// | /// | |
| 第5半旬 | 21～25 | 31 | 14 | 6 | /// | 13.5 | 16.6 | 9.4 | 18.9 | 6.5 | /// | /// | 6.3 | 12 | 西 | /// | /// | 17.6 | /// | /// | /// | |
| 第6半旬 | 26～30 | 10 | 7 | 7 | /// | 11.4 | 16.4 | 6.1 | 19.1 | 5.6 | /// | /// | 3.1 | 10 | 西北西 | /// | /// | 41.7 | /// | /// | /// | |
| 第1半旬 | 1～ 5 | 0 | 0 | 0 | /// | 12.7 | 17.2 | 7.0 | 18.6 | 4.4 | /// | /// | 3.6 | 7 | 南南西 | /// | /// | 37.7 | /// | /// | /// | |
| 第2半旬 | 6～10 | 38 | 20 | 10 ) | /// | 14.0 | 16.8 | 10.9 | 19.6 | 7.8 | /// | /// | 5.5 | 12 | 西北西 | /// | /// | 25.0 | /// | /// | /// | |
| 第3半旬 | 11～15 | 5 | 5 | 1 | /// | 8.2 | 12.9 ) | 3.1 ) | 14.9 ) | 1.7 ) | /// | /// | 3.5 | 8 | 北西 | /// | /// | 17.3 | /// | /// | /// | |
| 第4半旬 | 16～20 | 22 | 12 | 9 | /// | 10.3 | 14.3 ) | 5.6 ) | 14.8 ) | 3.6 ) | /// | /// | 2.9 | 8 | 西 | /// | /// | 25.3 | /// | /// | /// | |
| 第5半旬 | 21～25 | 43 | 17 | 4 | /// | 6.8 | 10.9 | 2.1 | 13.0 | 0.5 | /// | /// | 3.4 | 12 | 北西 | /// | /// | 10.1 | /// | /// | /// | |
| 第6半旬 | 26～31 | 33 | 16 | 5 | /// | 5.6 | 8.9 | 1.5 | 12.6 | -1.5 | /// | /// | 3.0 | 11 | 東南東 | /// | /// | 10.5 | /// | /// | /// | |
| 第1半旬 | 1～ 5 | 22 | 11 | 5 | /// | 6.6 | 8.9 | 3.1 | 13.1 | 0.1 | /// | /// | 4.6 | 10 | 南南西 | /// | /// | 6.4 | /// | /// | /// | |
| 第2半旬 | 6～10 | 18 | 7 | 2 | /// | 4.1 | 9.1 ) | 2.9 ) | 11.7 ) | -1.9 ] | /// | /// | 7.5 | 13 | 西北西 | /// | /// | 7.6 | /// | /// | /// | |
| 第3半旬 | 11～15 | 27 | 20 | 5 | /// | 4.2 | 7.8 | 0.6 | 13.4 | -2.1 | /// | /// | 7.2 | 13 | 西北西 | /// | /// | 2.3 | /// | /// | /// | |
| 第4半旬 | 16～20 | 4 | 4 | 1 | /// | 6.2 | 8.6 | 3.4 | 11.5 | -1.6 | /// | /// | 5.7 | 12 | 西北西 | /// | /// | 10.4 | /// | /// | /// | |
| 第5半旬 | 21～25 | 0 | 0 | 0 | /// | 3.1 | 7.5 | -0.6 | 10.1 | -2.9 | /// | /// | 2.7 | 8 | 西南西 | /// | /// | 25.1 | /// | /// | /// | |
| 第6半旬 | 26～30 | 0 | 0 | 0 | /// | 2.8 | 6.1 | -0.2 | 7.3 | -1.7 | /// | /// | 2.6 | 5 | 西 | /// | /// | 11.4 | /// | /// | /// | |
| 第1半旬 | 1～ 5 | 21 | 11 | 3 | /// | 3.9 | 7.1 ) | 1.2 ) | 10.8 ) | -1.7 ) | /// | /// | 5.4 | 14 | 西 | /// | /// | 5.8 | /// | /// | /// | |
| 第2半旬 | 6～10 | 18 | 9 | 3 | /// | -2.0 | -0.2 ) | -4.2 ) | 2.0 ) | -6.3 ] | /// | /// | 3.9 | 9 ) | 西南西 | /// | /// | 0.6 | /// | /// | /// | |
| 第3半旬 | 11～15 | 33 | 10 | 3 | /// | 0.6 | 3.7 ) | -1.7 ) | 8.2 ) | -4.9 ) | /// | /// | 6.2 | 13 | 北西 | /// | /// | 3.2 | /// | /// | /// | |
| 第4半旬 | 16～20 | 39 | 21 | 3 | /// | -4.4 | -1.2 | -7.7 | -0.5 | -13.3 | /// | /// | 3.4 | 10 | 北西 | /// | /// | 4.0 | /// | /// | /// | |
| 第5半旬 | 21～25 | 10 | 6 | 1 | /// | -5.5 | -1.0 ) | -13.0 ) | -0.7 ) | -16.0 ) | /// | /// | 2.2 | 6 | 西北西 | /// | /// | 9.3 | /// | /// | /// | |
| 第6半旬 | 26～31 | 0 | 0 | 0 | /// | -1.7 | 1.1 | -6.0 | 1.9 | -13.1 | /// | /// | 2.2 | 6 | 東 | /// | /// | 11.1 | /// | /// | /// | |
- 値欄の記号の説明
- 2021年3月2日より、アメダスの日照時間は「推計気象分布（日照時間）」から得る推計値となりましたので、日照計による観測値と単純比較できません。詳しくは要素ごとの値の補足説明をご覧ください。