旬ごとの値
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初山別（留萌地方) 1983年（旬ごとの値） 詳細（気温・蒸気圧・湿度）
| 月 | 旬 | 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 (℃) | 日 時:分 | 気温 (℃) | 日 時:分 | ＜0℃ | ≧25℃ | ＜0℃ | ≧25℃ | ＜0℃ | ≧25℃ | ≧30℃ | ≧35℃ | 湿度 (％) | 日 | |||||
| 上旬 | -3.4 | -0.7 | -7.3 | 5.1 | 08 11:00 | -14.0 | 04 01:00 | 0 | 8 | 0 | 10 | 0 | 7 | 0 | 0 | 0 | /// | /// | /// | /// | |
| 中旬 | -5.9 | -3.5 | -8.6 | -2.5 | 18 13:00 | -18.3 | 20 21:00 | 0 | 10 | 0 | 10 | 0 | 10 | 0 | 0 | 0 | /// | /// | /// | /// | |
| 下旬 | -3.5 | -0.4 | -7.9 | 4.9 | 28 20:00 | -19.5 | 22 05:00 | 0 | 7 | 0 | 11 | 0 | 7 | 0 | 0 | 0 | /// | /// | /// | /// | |
| 上旬 | -5.9 | -2.6 | -10.9 | -1.3 | 07 13:00 | -16.0 | 03 21:00 | 0 | 10 | 0 | 10 | 0 | 10 | 0 | 0 | 0 | /// | /// | /// | /// | |
| 中旬 | -7.6 | -5.2 ) | -12.1 ) | -0.3 ] | 20 14:00 | -18.1 ) | 13 21:00 | 0 | 10 | 0 | 10 | 0 | 9 ) | 0 ) | 0 ) | 0 ) | /// | /// | /// | /// | |
| 下旬 | -6.1 | -2.6 | -11.2 | 1.8 | 21 12:00 | -17.2 | 28 01:00 | 0 | 8 | 0 | 8 | 0 | 6 | 0 | 0 | 0 | /// | /// | /// | /// | |
| 上旬 | -5.8 | -0.9 ) | -12.4 ) | 5.1 ) | 10 14:00 | -17.0 ] | 01 22:00 | 0 | 9 | 0 | 10 | 0 | 6 ) | 0 ) | 0 ) | 0 ) | /// | /// | /// | /// | |
| 中旬 | -2.6 | 0.4 | -7.3 | 4.8 | 11 09:00 | -13.6 | 19 01:00 | 0 | 8 | 0 | 10 | 0 | 4 | 0 | 0 | 0 | /// | /// | /// | /// | |
| 下旬 | 1.6 | 4.6 | -2.4 | 8.8 | 31 16:00 | -7.5 | 25 06:00 | 0 | 2 | 0 | 7 | 0 | 0 | 0 | 0 | 0 | /// | /// | /// | /// | |
| 上旬 | 5.8 | 9.4 | 2.0 | 13.4 | 06 14:00 | -3.3 | 09 04:00 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | /// | /// | /// | /// | |
| 中旬 | 7.7 | 11.0 ) | 2.6 ) | 14.9 ) | 15 11:00 | -0.6 ) | 13 03:00 | 32 | 0 | 0 | 3 ) | 0 | 0 | 0 ) | 0 ) | 0 ) | /// | /// | /// | /// | |
| 下旬 | 10.5 | 13.7 | 7.2 | 18.8 | 29 13:00 | 5.4 | 21 02:00 | 61 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | /// | /// | /// | /// | |
| 上旬 | 8.3 | 11.9 | 4.1 | 19.3 | 07 14:00 | -0.2 | 06 05:00 | 22 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | /// | /// | /// | /// | |
| 中旬 | 9.9 | 14.2 ) | 5.5 ) | 22.8 ) | 13 09:00 | -0.5 ) | 18 03:00 | 72 | 0 | 0 | 1 ) | 0 | 0 | 0 ) | 0 ) | 0 ) | /// | /// | /// | /// | |
| 下旬 | 10.8 | 15.0 ) | 7.7 ) | 20.0 ) | 31 16:00 | 1.0 ) | 25 02:00 | 79 | 0 | 0 | 0 ) | 0 | 0 | 0 ) | 0 ) | 0 ) | /// | /// | /// | /// | |
| 上旬 | 10.7 | 15.4 | 5.4 | 20.8 | 09 13:00 | 0.9 | 04 04:00 | 76 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | /// | /// | /// | /// | |
| 中旬 | 12.1 | 15.3 | 8.5 | 18.0 | 17 16:00 | 4.3 | 11 03:00 | 101 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | /// | /// | /// | /// | |
| 下旬 | 13.7 | 15.9 | 11.4 | 18.3 | 21 10:00 | 8.6 | 30 24:00 | 137 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | /// | /// | /// | /// | |
| 上旬 | 14.8 | 19.0 | 9.4 | 22.1 | 04 15:00 | 5.3 | 08 03:00 | 148 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | /// | /// | /// | /// | |
| 中旬 | 15.9 | 18.9 | 12.5 | 20.7 | 14 14:00 | 9.3 | 20 05:00 | 159 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | /// | /// | /// | /// | |
| 下旬 | 18.3 | 20.2 | 16.4 | 22.3 | 27 10:00 | 10.9 | 21 04:00 | 202 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | /// | /// | /// | /// | |
| 上旬 | 20.3 | 22.4 | 17.8 | 24.7 | 05 09:00 | 13.5 | 02 01:00 | 203 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | /// | /// | /// | /// | |
| 中旬 | 21.8 | 25.7 | 17.8 | 32.3 | 17 15:00 | 13.8 | 13 03:00 | 218 | 0 | 1 | 0 | 0 | 0 | 4 | 2 | 0 | /// | /// | /// | /// | |
| 下旬 | 17.5 | 21.6 | 13.4 | 23.5 | 26 13:00 | 8.6 | 23 05:00 | 192 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | /// | /// | /// | /// | |
| 上旬 | 18.9 | 22.0 | 15.6 | 24.5 | 06 12:00 | 11.5 | 09 01:00 | 189 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | /// | /// | /// | /// | |
| 中旬 | 15.2 | 19.3 | 11.3 | 22.4 | 20 13:00 | 8.4 | 15 05:00 | 152 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | /// | /// | /// | /// | |
| 下旬 | 13.1 | 17.6 ) | 8.4 ) | 20.9 ) | 21 13:00 | 2.3 ) | 29 06:00 | 114 | 0 | 0 | 0 ) | 0 | 0 | 0 ) | 0 ) | 0 ) | /// | /// | /// | /// | |
| 上旬 | 12.0 | 14.9 ) | 7.8 ) | 17.8 ) | 04 13:00 | 5.0 ) | 08 06:00 | 112 | 0 | 0 | 0 ) | 0 | 0 | 0 ) | 0 ) | 0 ) | /// | /// | /// | /// | |
| 中旬 | 9.3 | 12.7 | 5.4 | 16.0 | 15 13:00 | 2.8 | 17 22:00 | 48 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | /// | /// | /// | /// | |
| 下旬 | 5.8 | 8.6 ) | 2.9 ) | 12.9 ) | 22 13:00 | -0.6 ) | 21 06:00 | 10 | 0 | 0 | 1 ) | 0 | 0 | 0 ) | 0 ) | 0 ) | /// | /// | /// | /// | |
| 上旬 | 5.1 | 8.9 | 1.0 | 12.6 | 10 11:00 | -2.3 | 07 06:00 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | /// | /// | /// | /// | |
| 中旬 | 5.4 | 8.9 ) | 2.1 ) | 14.2 ) | 17 09:00 | -0.7 ] | 19 23:00 | 0 | 0 | 0 | 3 | 0 | 0 | 0 ) | 0 ) | 0 ) | /// | /// | /// | /// | |
| 下旬 | 2.4 | 4.8 ) | -0.8 ) | 8.5 ) | 30 18:00 | -5.0 ) | 26 20:00 | 0 | 3 | 0 | 6 ) | 0 | 1 | 0 ) | 0 ) | 0 ) | /// | /// | /// | /// | |
| 上旬 | -0.3 | 2.2 | -3.3 | 5.1 | 01 01:00 | -6.4 | 05 07:00 | 0 | 5 | 0 | 9 | 0 | 2 | 0 | 0 | 0 | /// | /// | /// | /// | |
| 中旬 | -4.0 | -1.4 | -7.5 | 4.8 | 11 12:00 | -16.8 | 18 03:00 | 0 | 8 | 0 | 9 | 0 | 7 | 0 | 0 | 0 | /// | /// | /// | /// | |
| 下旬 | -3.2 | -0.2 | -7.3 | 4.9 | 21 24:00 | -15.2 | 29 06:00 | 0 | 9 | 0 | 10 | 0 | 6 | 0 | 0 | 0 | /// | /// | /// | /// | |
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