年ごとの値
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初山別（留萌地方) 年ごとの値 詳細（気温・蒸気圧・湿度）
| 年 | 気温 | 蒸気圧 | 湿度 | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 平均 | 最高 | 最低 | 積算 | 各階級の日数(平均) | 各階級の日数(最低) | 各階級の日数(最高) | 平均 (hPa) | 平均 (％) | 最小 | |||||||||||
| 日平均 (℃) | 日最高 (℃) | 日最低 (℃) | 気温 (℃) | 月/日 時:分 | 気温 (℃) | 月/日 時:分 | ＜0℃ | ≧25℃ | ＜0℃ | ≧25℃ | ＜0℃ | ≧25℃ | ≧30℃ | ≧35℃ | 湿度 (％) | 月/日 | ||||
| 1.7 ] | 4.4 ] | -1.6 ] | 16.7 ] | 10/30 23:00 | -14.0 ] | 12/28 03:00 | 22.0 ] | 21 ] | 0 ] | 37 ] | 0 ] | 10 ] | 0 ] | 0 ] | 0 ] | /// | /// | /// | /// | |
| 6.8 | 9.9 | 2.8 | 32.3 | 8/03 12:00 | -27.7 | 2/14 07:00 | 2521.0 | 101 | 2 | 130 | 0 | 78 | 18 | 1 | 0 | /// | /// | /// | /// | |
| 6.9 | 9.3 ] | 2.3 ] | 33.3 ] | 8/18 14:00 | -24.2 | 1/30 05:00 | 2459.0 | 97 | 2 | 146 ] | 0 | 60 | 11 ] | 2 ] | 0 ] | /// | /// | /// | /// | |
| 6.4 | 9.8 | 2.5 | 28.9 ] | 9/12 14:00 | -21.8 | 2/22 06:00 | 2432.0 | 111 | 0 | 152 | 0 | 75 | 7 | 0 | 0 | /// | /// | /// | /// | |
| 6.4 | 9.4 ] | 2.2 ] | 28.9 | 8/03 10:00 | -19.5 | 1/17 07:00 | 2393.0 | 113 | 2 | 147 ] | 0 | 69 | 15 ] | 0 ] | 0 ] | /// | /// | /// | /// | |
| 7.1 | 10.5 | 3.1 | 33.4 ] | 8/02 15:00 | -22.6 | 2/05 07:00 | 2498.0 | 92 | 1 | 128 | 0 | 62 | 17 | 1 | 0 | /// | /// | /// | /// | |
| 6.6 | 9.9 | 2.8 | 32.3 | 8/17 15:00 | -19.5 ] | 1/22 05:00 | 2327.0 | 97 | 1 | 136 | 0 | 75 | 4 | 2 | 0 | /// | /// | /// | /// | |
| 6.5 | 9.9 | 2.4 | 32.3 | 8/16 10:00 | -20.4 | 1/29 06:00 | 2575.0 | 128 | 2 | 149 | 0 | 95 | 30 | 1 | 0 | /// | /// | /// | /// | |
| 6.4 | 9.6 | 2.5 | 29.7 | 8/11 15:00 | -25.4 | 1/30 06:00 | 2411.0 | 114 | 2 | 146 | 0 | 89 | 21 | 0 | 0 | /// | /// | /// | /// | |
| 6.2 | 9.6 | 2.1 | 30.0 | 8/30 13:00 | -24.0 | 2/16 06:00 | 2300.0 | 112 | 1 | 146 | 0 | 74 | 15 | 1 | 0 | /// | /// | /// | /// | |
| 6.7 | 9.9 | 3.0 | 29.5 | 9/06 11:00 | -21.0 | 1/20 19:00 | 2547.0 | 110 | 0 | 145 | 0 | 76 | 9 | 0 | 0 | /// | /// | /// | /// | |
| 6.9 | 10.1 | 3.2 | 31.3 | 8/21 11:00 | -21.2 | 2/16 07:00 | 2587.0 | 100 | 3 | 146 | 0 | 68 | 20 | 2 | 0 | /// | /// | /// | /// | |
| 7.9 | 11.2 | 4.0 | 33.8 | 8/07 16:00 | -22.1 | 1/25 05:00 | 2501.0 | 78 | 6 | 129 | 0 | 37 | 23 | 6 | 0 | /// | /// | /// | /// | |
| 8.5 | 11.9 ] | 4.6 ] | 27.8 ] | 7/24 09:00 | -21.9 | 1/27 18:00 | 2806.0 | 76 | 0 | 116 | 0 | 42 | 8 ] | 0 ] | 0 ] | /// | /// | /// | /// | |
| 7.8 | 11.1 | 3.8 | 28.0 | 8/02 12:00 | -22.2 | 2/19 06:00 | 2766.0 | 93 | 0 | 126 | 0 | 56 | 12 | 0 | 0 | /// | /// | /// | /// | |
| 7.2 | 10.5 | 3.3 | 28.0 | 8/20 10:00 | -21.1 | 2/04 23:00 | 2496.0 | 100 | 0 | 142 | 0 | 58 | 4 | 0 | 0 | /// | /// | /// | /// | |
| 7.2 | 10.5 | 3.4 | 27.3 | 8/04 14:00 | -19.5 ] | 1/15 22:00 | 2437.0 | 89 | 0 | 141 | 0 | 47 | 9 | 0 | 0 | /// | /// | /// | /// | |
| 7.8 | 11.0 | 4.2 | 31.4 | 9/06 14:00 | -20.7 | 1/30 05:00 | 2809.0 | 105 | 2 | 141 | 0 | 70 | 34 | 1 | 0 | /// | /// | /// | /// | |
| 7.7 | 11.0 | 4.0 | 28.6 | 7/13 10:00 | -18.7 | 2/02 05:00 | 2836.0 | 91 | 0 | 125 | 0 | 61 | 6 | 0 | 0 | /// | /// | /// | /// | |
| 6.9 | 10.1 | 3.3 | 27.0 | 7/11 15:00 | -18.1 | 2/23 21:00 | 2484.0 | 95 | 0 | 141 | 0 | 62 | 8 | 0 | 0 | /// | /// | /// | /// | |
| 7.5 | 10.7 | 3.9 | 30.5 | 7/28 14:00 | -15.8 | 3/16 06:00 | 2548.0 | 88 | 1 | 132 | 0 | 57 | 8 | 1 | 0 | /// | /// | /// | /// | |
| 7.4 | 10.9 | 3.3 | 29.3 | 7/27 15:00 | -22.8 | 2/18 06:00 | 2781.0 | 101 | 0 | 132 | 0 | 72 | 13 | 0 | 0 | /// | /// | /// | /// | |
| 7.7 | 10.9 | 3.8 | 30.7 | 8/12 12:00 | -16.0 | 1/14 07:00 | 2830.0 | 112 | 6 | 139 | 0 | 76 | 32 | 2 | 0 | /// | /// | /// | /// | |
| 7.4 | 10.6 | 3.7 | 32.5 | 8/01 09:00 | -23.8 | 2/09 05:00 | 2828.0 | 122 | 3 | 147 | 0 | 79 | 36 | 3 | 0 | /// | /// | /// | /// | |
| 6.6 | 9.9 | 2.8 | 27.2 | 7/17 13:00 | -24.2 | 3/11 06:00 | 2559.0 | 108 | 0 | 137 | 0 | 89 | 12 | 0 | 0 | /// | /// | /// | /// | |
| 7.5 | 10.8 | 3.6 | 29.9 | 9/02 11:00 | -18.8 | 1/17 07:00 | 2572.0 | 86 | 0 | 122 | 0 | 57 | 9 | 0 | 0 | /// | /// | /// | /// | |
| 7.2 | 10.9 | 3.0 | 26.3 | 8/07 13:30 | -23.3 | 1/15 04:30 | 2580.0 | 93 | 0 | 139 | 0 | 59 | 4 | 0 | 0 | /// | /// | /// | /// | |
| 8.1 | 11.6 | 3.9 | 29.8 | 7/24 13:10 | -17.8 | 1/25 07:30 | 2769.0 | 96 | 1 | 136 | 0 | 52 | 14 | 0 | 0 | /// | /// | /// | /// | |
| 7.3 | 10.9 | 3.3 | 28.8 | 8/02 09:50 | -19.4 | 2/18 04:40 | 2832.0 | 101 | 0 | 139 | 0 | 71 | 17 | 0 | 0 | /// | /// | /// | /// | |
| 7.6 | 11.0 | 4.0 | 30.7 | 8/17 11:00 | -22.7 | 1/23 07:20 | 2696.0 | 99 | 1 | 145 | 0 | 62 | 25 | 3 | 0 | /// | /// | /// | /// | |
| 7.3 | 10.9 | 3.1 | 28.7 | 8/13 11:20 | -16.9 | 2/26 05:20 | 2502.0 | 104 | 0 | 159 | 0 | 57 | 11 | 0 | 0 | /// | /// | /// | /// | |
| 7.5 | 11.4 | 3.1 | 28.8 | 7/06 14:30 | -20.7 | 2/25 04:50 | 2598.0 | 92 | 0 | 143 | 0 | 61 | 18 | 0 | 0 | /// | /// | /// | /// | |
| 7.6 | 11.2 | 3.6 | 27.9 | 6/29 13:08 | -15.7 | 2/19 03:16 | 2680.0 | 93 | 0 | 155 | 0 | 51 | 14 | 0 | 0 | /// | /// | /// | /// | |
| 8.0 | 11.5 | 4.1 | 32.8 | 6/28 16:02 | -15.8 | 1/17 02:17 | 2733.0 | 91 | 3 | 143 | 0 | 60 | 34 | 2 | 0 | /// | /// | /// | /// | |
| 7.5 | 11.0 | 3.4 | 28.4 | 9/03 09:01 | -17.4 | 1/28 07:09 | 2586.0 | 105 | 1 | 145 | 0 | 69 | 27 | 0 | 0 | /// | /// | /// | /// | |
| 7.3 | 11.0 | 3.2 | 31.9 | 9/18 13:54 | -19.3 | 2/02 07:22 | 2857.0 | 116 | 4 | 147 | 0 | 74 | 41 | 3 | 0 | /// | /// | /// | /// | |
| 7.5 | 11.1 | 3.5 | 30.7 | 8/06 09:51 | -18.7 | 1/18 06:21 | 2681.0 | 94 | 1 | 138 | 0 | 70 | 32 | 1 | 0 | /// | /// | /// | /// | |
| 7.3 | 11.2 | 3.0 | 30.6 | 8/11 13:21 | -19.9 | 2/08 06:08 | 2741.0 | 104 | 0 | 156 | 0 | 72 | 26 | 1 | 0 | /// | /// | /// | /// | |
| 8.0 | 11.5 | 4.1 | 28.1 | 7/25 11:19 | -18.4 | 2/04 06:20 | 2622.0 | 71 | 0 | 134 | 0 | 32 | 22 | 0 | 0 | /// | /// | /// | /// | |
| 7.4 | 11.0 | 3.4 | 30.7 | 8/30 12:01 | -18.2 | 1/25 05:22 | 2667.0 | 101 | 1 | 149 | 0 | 72 | 28 | 3 | 0 | /// | /// | /// | /// | |
| 7.3 | 10.8 | 3.1 | 28.9 | 7/21 11:59 | -18.8 | 1/24 02:29 | 2608.0 | 104 | 0 | 147 | 0 | 66 | 15 | 0 | 0 | /// | /// | /// | /// | |
| 7.6 | 11.2 | 3.6 | 31.1 | 7/29 10:08 | -17.5 | 2/07 06:59 | 2644.0 | 95 | 3 | 138 | 0 | 60 | 16 | 2 | 0 | /// | /// | /// | /// | |
| 8.0 | 11.7 | 3.8 | 31.5 | 8/16 13:04 | -16.3 | 2/09 21:52 | 2883.0 | 95 | 2 | 150 | 0 | 54 | 27 | 2 | 0 | /// | /// | /// | /// | |
| 8.2 | 11.9 | 4.3 | 32.0 | 9/03 13:55 | -20.8 | 12/31 00:37 | 2810.0 | 85 | 2 | 136 | 0 | 53 | 30 | 2 | 0 | /// | /// | /// | /// | |
| 8.3 | 12.2 | 4.2 | 33.8 | 8/01 13:03 | -18.0 | 2/08 00:50 | 2876.0 | 76 | 11 | 126 | 0 | 50 | 29 | 8 | 0 | /// | /// | /// | /// | |
| 8.4 | 12.1 | 4.3 | 30.0 | 9/06 13:42 | -16.4 | 2/15 06:24 | 2911.0 | 89 | 1 | 136 | 0 | 54 | 41 | 1 | 0 | /// | /// | /// | /// | |
| 9.1 | 12.7 | 5.1 | 33.4 | 8/31 12:39 | -18.9 | 2/15 03:36 | 3111.0 | 87 | 9 | 122 | 1 | 64 | 56 | 11 | 0 | 7.3 ] | 74 ] | 33 ] | 10/21 | |
| 8.4 | 12.2 | 4.0 | 32.6 | 8/13 10:51 | -16.5 | 2/24 02:38 | 3062.0 | 102 | 2 | 136 | 0 | 62 | 38 | 4 | 0 | 10.7 | 79 | 24 | 4/16 | |
- 寒候年とは、前年8月1日から当年7月31日までの期間のことです。例えば、2008年寒候年は2007年8月1日から2008年7月31日までの期間を示します。
- 値欄の記号の説明
- 赤線は、観測場所を移転した場合、観測装置を変更した場合または観測の時間間隔を変更した場合に、その前後のデータが均質でないことを示します。
赤実線の前後では観測データや観測史上1位などの極値を比較できませんが、赤点線の前後では極値を比較できます。 - 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。