旬ごとの値
 |  |
 |  |
 |  |  |  |  |
 |  |  |  |  |  |
 |  |  |  |  |
岩見沢（空知地方) 1999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 | -6.2 | -3.3 | 1.3 | 05 | -6.6 | 08 | -9.8 | -14.2 | 08 | -6.6 | 10 | 10 | 0 | 10 | 0 | 8 | 0 | 0 | 0 | 3.3 | 85 | 48 | 08 | |
| 中旬 | -3.6 | -0.6 | 3.8 | 19 | -3.1 | 17* | -7.9 | -10.6 | 12 | -5.0 | 18 | 9 | 0 | 10 | 0 | 6 | 0 | 0 | 0 | 4.1 | 85 | 43 | 14 | |
| 下旬 | -5.0 | -1.5 | 6.1 | 26 | -5.7 | 30* | -8.9 | -16.3 | 29 | -4.8 | 26 | 11 | 0 | 11 | 0 | 8 | 0 | 0 | 0 | 3.5 | 81 | 46 | 29* | |
| 上旬 | -6.8 | -3.4 | 0.8 | 05 | -7.5 | 03 | -11.5 | -16.3 | 04* | -6.4 | 05 | 10 | 0 | 10 | 0 | 9 | 0 | 0 | 0 | 3.1 | 82 | 55 | 10 | |
| 中旬 | -5.2 | -1.8 | 6.5 | 17 | -9.4 | 12 | -9.4 | -14.5 | 13 | -0.1 | 17 | 8 | 0 | 10 | 0 | 7 | 0 | 0 | 0 | 3.4 | 76 | 51 | 16 | |
| 下旬 | -3.1 | 0.4 | 5.3 | 27 | -4.2 | 28 | -8.1 | -16.4 | 21 | -4.3 | 25 | 6 | 0 | 8 | 0 | 4 | 0 | 0 | 0 | 4.1 | 81 | 52 | 21 | |
| 上旬 | -3.4 | 0.8 | 4.0 | 05 | -1.9 | 09 | -7.6 | -10.9 | 05 | -4.5 | 02 | 10 | 0 | 10 | 0 | 4 | 0 | 0 | 0 | 3.8 | 80 | 46 | 01 | |
| 中旬 | -0.9 | 2.1 | 7.6 | 18 | -4.3 | 12 | -4.5 | -12.4 | 13 | 0.8 | 14 | 5 | 0 | 8 | 0 | 3 | 0 | 0 | 0 | 4.7 | 78 | 40 | 20 | |
| 下旬 | -1.0 | 2.8 | 11.3 | 26 | -2.2 | 29 | -5.4 | -12.2 | 21 | 1.2 | 26 | 6 | 0 | 10 | 0 | 5 | 0 | 0 | 0 | 4.3 | 73 | 37 | 26 | |
| 上旬 | 0.8 | 4.2 | 9.8 | 09 | 0.1 | 07 | -3.4 | -6.3 | 09 | 2.0 | 01 | 5 | 0 | 9 | 0 | 0 | 0 | 0 | 0 | 5.0 | 76 | 33 | 04 | |
| 中旬 | 6.4 | 11.4 | 14.7 | 19* | 6.1 | 15 | 0.7 | -3.8 | 11 | 3.9 | 12 | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 8.2 | 86 | 29 | 16 | |
| 下旬 | 9.3 | 17.7 | 23.3 | 23 | 7.8 | 28 | 2.0 | -2.0 | 21 | 6.4 | 27 | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 7.6 | 66 | 19 | 23 | |
| 上旬 | 9.7 | 14.4 | 18.0 | 01 | 9.9 | 05 | 5.5 | 2.3 | 03 | 8.2 | 04 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.7 | 74 | 16 | 02 | |
| 中旬 | 9.8 | 15.2 | 18.4 | 20 | 12.1 | 12 | 4.6 | 1.9 | 14 | 9.9 | 20 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.0 | 74 | 33 | 16 | |
| 下旬 | 13.7 | 19.2 | 28.0 | 22 | 13.6 | 27 | 9.1 | 7.8 | 31 | 10.8 | 27 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 11.4 | 76 | 20 | 22 | |
| 上旬 | 15.5 | 21.6 | 27.3 | 01 | 13.9 | 07 | 9.7 | 7.8 | 10 | 13.0 | 03 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 12.8 | 75 | 20 | 01 | |
| 中旬 | 17.9 | 23.1 | 29.4 | 14 | 16.3 | 20 | 12.5 | 9.8 | 12 | 19.0 | 14 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 14.8 | 72 | 40 | 12 | |
| 下旬 | 17.8 | 23.6 | 28.5 | 23 | 17.7 | 25 | 13.4 | 10.5 | 22 | 16.2 | 27 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 15.9 | 79 | 32 | 23 | |
| 上旬 | 17.4 | 22.7 | 26.6 | 10 | 18.9 | 04 | 13.7 | 11.4 | 10 | 15.6 | 03 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 16.4 | 84 | 35 | 10 | |
| 中旬 | 21.8 | 26.6 | 28.9 | 11 | 24.3 | 18 | 18.5 | 15.7 | 11 | 20.8 | 15 | 0 | 0 | 0 | 0 | 0 | 8 | 0 | 0 | 23.3 | 89 | 47 | 11 | |
| 下旬 | 24.2 | 28.2 | 32.2 | 27 | 24.3 | 30 | 21.0 | 16.6 | 21 | 23.2 | 26 | 0 | 3 | 0 | 0 | 0 | 10 | 2 | 0 | 25.9 | 87 | 55 | 22 | |
| 上旬 | 25.5 | 31.0 | 34.6 | 09* | 25.3 | 06 | 21.1 | 20.4 | 06 | 22.2 | 01 | 0 | 7 | 0 | 0 | 0 | 10 | 7 | 0 | 27.1 | 85 | 44 | 09 | |
| 中旬 | 24.6 | 30.3 | 33.0 | 12 | 28.4 | 19 | 20.5 | 17.3 | 15 | 23.8 | 17 | 0 | 4 | 0 | 0 | 0 | 10 | 5 | 0 | 25.1 | 82 | 38 | 18 | |
| 下旬 | 21.7 | 26.7 | 30.9 | 21 | 21.8 | 31 | 18.2 | 15.1 | 27 | 22.7 | 21 | 0 | 1 | 0 | 0 | 0 | 9 | 1 | 0 | 21.8 | 84 | 49 | 28 | |
| 上旬 | 21.6 | 27.0 | 29.3 | 09 | 23.5 | 02 | 16.9 | 11.9 | 03 | 20.7 | 08 | 0 | 0 | 0 | 0 | 0 | 9 | 0 | 0 | 21.1 | 83 | 45 | 03 | |
| 中旬 | 17.7 | 23.0 | 27.1 | 11 | 14.1 | 20 | 12.5 | 8.7 | 16 | 18.3 | 11 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 15.1 | 75 | 35 | 18 | |
| 下旬 | 16.2 | 21.0 | 24.8 | 25 | 17.6 | 22 | 11.1 | 7.7 | 22 | 15.7 | 25 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 14.7 | 79 | 29 | 28 | |
| 上旬 | 11.9 | 17.5 | 20.7 | 08 | 11.9 | 02 | 6.5 | 3.4 | 10 | 10.3 | 07 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11.0 | 80 | 38 | 01 | |
| 中旬 | 9.8 | 14.8 | 19.7 | 12 | 6.1 | 17 | 3.9 | 0.9 | 15 | 8.5 | 12 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.9 | 79 | 44 | 16 | |
| 下旬 | 10.4 | 14.8 | 18.0 | 21 | 9.2 | 24 | 6.3 | 3.3 | 31 | 11.0 | 28 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10.3 | 81 | 42 | 31 | |
| 上旬 | 5.6 | 10.0 | 13.5 | 08 | 8.3 | 02 | 1.8 | -1.6 | 07 | 4.8 | 03 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 6.8 | 75 | 36 | 07 | |
| 中旬 | 3.9 | 7.3 | 12.4 | 12 | 0.3 | 17 | 0.4 | -6.2 | 17 | 9.4 | 12 | 2 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 6.4 | 76 | 38 | 20* | |
| 下旬 | 3.2 | 7.1 | 16.4 | 24 | -1.5 | 29 | -0.6 | -5.6 | 29 | 4.9 | 24 | 4 | 0 | 5 | 0 | 2 | 0 | 0 | 0 | 6.4 | 77 | 43 | 24 | |
| 上旬 | -1.5 | 1.3 | 6.3 | 09 | -4.1 | 03 | -5.4 | -10.0 | 06 | 0.9 | 10 | 8 | 0 | 9 | 0 | 4 | 0 | 0 | 0 | 4.6 | 82 | 46 | 10 | |
| 中旬 | -4.1 | -1.1 | 4.9 | 11 | -5.9 | 12 | -7.7 | -10.6 | 15 | -5.2 | 16 | 10 | 0 | 10 | 0 | 7 | 0 | 0 | 0 | 3.9 | 86 | 57 | 18 | |
| 下旬 | -2.9 | 0.6 | 3.9 | 28 | -1.1 | 21 | -7.2 | -12.1 | 27 | 0.2 | 28 | 10 | 0 | 10 | 0 | 6 | 0 | 0 | 0 | 4.4 | 87 | 54 | 24 | |