旬ごとの値
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倶知安（後志地方) 1981年（旬ごとの値） 詳細（気温・蒸気圧・湿度）
| 月 | 旬 | 気温(℃) | 蒸気圧 (hPa) | 湿度(％) | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 日平均 | 最高気温 | 最低気温 | 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 | 平均 | 最高 | 最低 | 平均 | 最低 | 最高 | ＜0℃ | ≧25℃ | ＜0℃ | ≧25℃ | ＜0℃ | ≧25℃ | ≧30℃ | ≧35℃ | 平均 | 平均 | 最小 | |||||||
| 値 | 日 | 値 | 日 | 値 | 日 | 値 | 日 | 値 | 日 | |||||||||||||||
| 上旬 | -5.2 | -1.9 | 1.0 | 03 | -4.7 | 07 | -9.9 | -16.6 | 01 | -2.3 | 03 | 10 | 0 | 10 | 0 | 7 | 0 | 0 | 0 | 3.4 | 80 | 43 | 05 | |
| 中旬 | -9.3 | -2.6 | -1.1 | 13 | -4.4 | 15 | -17.0 | -21.9 | 14 | -11.1 | 19 | 10 | 0 | 10 | 0 | 10 | 0 | 0 | 0 | 2.7 | 82 | 45 | 14 | |
| 下旬 | -6.9 | -4.3 | -1.6 | 24 | -6.9 | 27 | -11.4 | -19.0 | 26 | -5.9 | 24 | 11 | 0 | 11 | 0 | 11 | 0 | 0 | 0 | 2.9 | 79 | 52 | 31* | |
| 上旬 | -4.1 | -0.6 | 1.7 | 04 | -3.8 | 09 | -8.2 | -13.8 | 03 | -3.2 | 04 | 10 | 0 | 10 | 0 | 5 | 0 | 0 | 0 | 3.6 | 80 | 49 | 08 | |
| 中旬 | -3.1 | 0.6 | 3.3 | 13 | -2.3 | 11 | -8.0 | -12.9 | 13 | -3.9 | 16 | 10 | 0 | 10 | 0 | 4 | 0 | 0 | 0 | 4.0 | 81 | 45 | 17* | |
| 下旬 | -7.8 | -3.7 | -1.8 | 23 | -5.0 | 28 | -11.9 | -17.6 | 24 | -7.3 | 21 | 8 | 0 | 8 | 0 | 8 | 0 | 0 | 0 | 2.5 | 74 | 28 | 26 | |
| 上旬 | -4.9 | -1.3 | 1.7 | 04 | -4.0 | 01 | -8.4 | -17.2 | 10 | -4.4 | 03 | 10 | 0 | 10 | 0 | 8 | 0 | 0 | 0 | 3.4 | 78 | 40 | 05 | |
| 中旬 | -0.7 | 3.9 | 7.7 | 19 | -2.0 | 11 | -6.2 | -14.5 | 11 | -1.8 | 19 | 5 | 0 | 10 | 0 | 2 | 0 | 0 | 0 | 4.8 | 80 | 43 | 18 | |
| 下旬 | -0.8 | 3.0 | 5.0 | 21 | -0.1 | 24 | -5.1 | -9.0 | 30 | 0.0 | 26 | 7 | 0 | 10 | 0 | 1 | 0 | 0 | 0 | 4.6 | 78 | 41 | 23 | |
| 上旬 | 3.1 | 7.9 | 13.4 | 10 | 3.8 | 07 | -2.6 | -6.6 | 01 | 0.6 | 02 | 0 | 0 | 9 | 0 | 0 | 0 | 0 | 0 | 5.2 | 68 | 30 | 09 | |
| 中旬 | 2.4 | 6.1 | 9.9 | 16 | 3.6 | 12 | -1.7 | -3.5 | 17* | 2.3 | 11 | 0 | 0 | 7 | 0 | 0 | 0 | 0 | 0 | 5.3 | 73 | 24 | 16 | |
| 下旬 | 8.0 | 14.0 | 18.2 | 29 | 9.5 | 21 | 1.5 | -1.8 | 29 | 6.1 | 30 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 7.1 | 68 | 21 | 29 | |
| 上旬 | 9.8 | 15.5 | 22.8 | 02 | 9.4 | 10 | 4.4 | 1.6 | 06 | 7.2 | 01 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.4 | 69 | 28 | 07* | |
| 中旬 | 7.0 | 11.3 | 16.6 | 17 | 7.3 | 18 | 2.9 | 1.4 | 20 | 4.1 | 18* | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.7 | 76 | 30 | 17 | |
| 下旬 | 9.1 | 13.6 | 22.3 | 22 | 7.4 | 30 | 4.3 | 0.0 | 31* | 7.3 | 25 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.8 | 76 | 37 | 21 | |
| 上旬 | 12.4 | 18.1 | 21.8 | 09 | 14.8 | 02 | 7.4 | 1.5 | 01 | 11.5 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10.7 | 75 | 42 | 01 | |
| 中旬 | 13.8 | 18.6 | 22.0 | 14 | 14.3 | 20 | 10.8 | 7.6 | 19 | 12.3 | 16 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 13.1 | 83 | 50 | 15 | |
| 下旬 | 15.6 | 20.5 | 26.1 | 25 | 16.2 | 22 | 11.3 | 7.7 | 21 | 14.8 | 29* | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 13.4 | 76 | 37 | 25 | |
| 上旬 | 17.6 | 21.2 | 24.7 | 07 | 15.4 | 01 | 14.9 | 11.9 | 03 | 18.6 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 16.9 | 84 | 57 | 03 | |
| 中旬 | 21.8 | 26.4 | 28.0 | 18* | 21.2 | 11 | 17.8 | 14.9 | 12 | 20.3 | 17* | 0 | 0 | 0 | 0 | 0 | 9 | 0 | 0 | 21.7 | 83 | 58 | 12 | |
| 下旬 | 21.0 | 26.4 | 32.6 | 30 | 22.5 | 21 | 16.7 | 14.0 | 26 | 19.3 | 21 | 0 | 0 | 0 | 0 | 0 | 6 | 2 | 0 | 19.9 | 81 | 45 | 31 | |
| 上旬 | 20.8 | 24.8 | 31.8 | 01 | 19.3 | 05 | 17.1 | 13.4 | 08 | 22.0 | 02 | 0 | 2 | 0 | 0 | 0 | 4 | 2 | 0 | 19.4 | 79 | 47 | 06 | |
| 中旬 | 19.1 | 22.7 | 26.6 | 11 | 19.1 | 18 | 15.8 | 13.2 | 14 | 18.8 | 12 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 18.3 | 82 | 56 | 15* | |
| 下旬 | 18.9 | 23.5 | 26.1 | 29 | 20.9 | 22 | 14.5 | 10.2 | 29 | 18.1 | 26 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 17.7 | 81 | 41 | 29 | |
| 上旬 | 14.4 | 18.8 | 21.5 | 08 | 15.3 | 04 | 9.9 | 5.5 | 07 | 13.4 | 09 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 12.9 | 79 | 48 | 10 | |
| 中旬 | 13.7 | 20.1 | 23.8 | 20 | 16.9 | 14 | 7.5 | 4.0 | 12 | 11.3 | 20 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 12.6 | 79 | 44 | 18 | |
| 下旬 | 13.7 | 20.2 | 23.4 | 25 | 13.7 | 29 | 7.4 | 1.2 | 30 | 11.0 | 21 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 12.8 | 80 | 43 | 30 | |
| 上旬 | 11.5 | 16.7 | 20.8 | 08 | 11.9 | 10 | 5.3 | 1.2 | 07 | 7.3 | 09 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10.3 | 75 | 40 | 07 | |
| 中旬 | 8.5 | 14.2 | 17.4 | 13 | 9.9 | 20 | 2.5 | -0.5 | 18 | 7.9 | 19 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 8.3 | 74 | 29 | 15 | |
| 下旬 | 6.4 | 11.9 | 16.4 | 22 | 4.9 | 24 | 0.4 | -2.9 | 31 | 7.0 | 22 | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 7.3 | 74 | 37 | 30 | |
| 上旬 | 1.5 | 4.7 | 13.8 | 03 | 0.0 | 08* | -1.2 | -6.9 | 08 | 4.6 | 03 | 4 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 5.2 | 75 | 45 | 10 | |
| 中旬 | 1.2 | 4.0 | 7.8 | 19 | -1.0 | 17 | -1.8 | -4.9 | 16 | 1.7 | 19 | 3 | 0 | 7 | 0 | 1 | 0 | 0 | 0 | 5.0 | 75 | 42 | 14 | |
| 下旬 | -3.4 | -0.9 | 2.7 | 23 | -5.4 | 28 | -5.4 | -8.6 | 29 | -2.1 | 21 | 10 | 0 | 10 | 0 | 4 | 0 | 0 | 0 | 4.0 | 82 | 48 | 22 | |
| 上旬 | -3.1 | -0.4 | 2.9 | 04 | -4.7 | 01 | -6.7 | -12.2 | 01 | -1.9 | 05 | 9 | 0 | 10 | 0 | 6 | 0 | 0 | 0 | 4.0 | 80 | 50 | 10 | |
| 中旬 | -0.7 | 1.8 | 4.4 | 19* | -2.7 | 14 | -4.2 | -8.3 | 14 | -1.1 | 12 | 6 | 0 | 10 | 0 | 2 | 0 | 0 | 0 | 4.6 | 80 | 49 | 19* | |
| 下旬 | -2.9 | 1.9 | 6.2 | 22 | -4.2 | 31 | -9.1 | -13.6 | 31 | -2.4 | 23 | 9 | 0 | 11 | 0 | 2 | 0 | 0 | 0 | 4.0 | 79 | 43 | 26 | |