旬ごとの値
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室蘭（胆振地方) 1985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 | -4.7 | -2.8 | 3.0 | 10 | -5.6 | 05 | -6.8 | -8.3 | 06* | -4.9 | 03 | 10 | 0 | 10 | 0 | 9 | 0 | 0 | 0 | 2.7 | 62 | 36 | 06 | |
| 中旬 | -4.1 | -1.7 | 2.9 | 20 | -6.1 | 18 | -6.5 | -8.6 | 18 | -3.4 | 11 | 9 | 0 | 10 | 0 | 6 | 0 | 0 | 0 | 3.3 | 71 | 46 | 14 | |
| 下旬 | -5.1 | -3.0 | 3.0 | 28 | -7.6 | 26 | -7.4 | -9.6 | 26 | -5.1 | 21 | 11 | 0 | 11 | 0 | 9 | 0 | 0 | 0 | 2.9 | 67 | 41 | 30 | |
| 上旬 | -2.8 | -0.6 | 1.6 | 06 | -3.4 | 04 | -5.2 | -7.1 | 03 | -2.2 | 10 | 10 | 0 | 10 | 0 | 6 | 0 | 0 | 0 | 3.5 | 68 | 41 | 04 | |
| 中旬 | -1.2 | 0.5 | 4.6 | 17 | -1.9 | 15* | -2.6 | -4.8 | 14* | 0.2 | 17 | 6 | 0 | 9 | 0 | 5 | 0 | 0 | 0 | 4.2 | 75 | 52 | 12 | |
| 下旬 | -1.2 | 0.6 | 3.1 | 23 | -1.2 | 26 | -2.9 | -4.9 | 28 | -0.2 | 23 | 6 | 0 | 8 | 0 | 4 | 0 | 0 | 0 | 4.0 | 70 | 49 | 25 | |
| 上旬 | -1.9 | -0.4 | 1.4 | 08 | -3.0 | 10 | -3.8 | -6.0 | 10 | -1.6 | 08 | 10 | 0 | 10 | 0 | 5 | 0 | 0 | 0 | 3.8 | 71 | 42 | 09 | |
| 中旬 | -0.1 | 2.2 | 5.8 | 20 | -2.4 | 11 | -2.3 | -5.0 | 15 | 0.4 | 18 | 5 | 0 | 8 | 0 | 2 | 0 | 0 | 0 | 3.9 | 62 | 41 | 12 | |
| 下旬 | 1.2 | 3.4 | 5.7 | 26 | 1.5 | 28 | -0.6 | -3.1 | 24 | 1.1 | 26 | 0 | 0 | 7 | 0 | 0 | 0 | 0 | 0 | 5.1 | 75 | 40 | 26 | |
| 上旬 | 4.5 | 7.5 | 12.0 | 03 | 3.7 | 01 | 2.2 | -1.3 | 02 | 4.9 | 03 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 6.6 | 79 | 38 | 07 | |
| 中旬 | 3.6 | 7.0 | 12.1 | 17 | 4.2 | 16 | 1.3 | -0.6 | 12 | 5.0 | 20 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 6.5 | 82 | 43 | 11 | |
| 下旬 | 7.5 | 11.0 | 14.0 | 28 | 5.7 | 22 | 4.9 | 3.5 | 22 | 6.1 | 26 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.9 | 78 | 39 | 25 | |
| 上旬 | 9.5 | 13.7 | 19.9 | 10 | 6.5 | 07 | 5.7 | 2.1 | 07 | 10.6 | 03 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.2 | 70 | 20 | 03 | |
| 中旬 | 10.9 | 14.8 | 20.0 | 19 | 8.4 | 13 | 7.6 | 4.3 | 12 | 12.4 | 19 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.3 | 72 | 26 | 17 | |
| 下旬 | 11.3 | 14.8 | 20.0 | 24 | 11.0 | 22 | 8.2 | 5.9 | 31 | 10.5 | 24 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.3 | 70 | 28 | 28 | |
| 上旬 | 12.4 | 16.0 | 23.8 | 06 | 10.4 | 10 | 9.6 | 7.4 | 01 | 12.1 | 04 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11.8 | 82 | 48 | 06 | |
| 中旬 | 11.8 | 14.6 | 20.2 | 20 | 10.3 | 11 | 9.8 | 6.7 | 15 | 13.0 | 20 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 12.1 | 87 | 65 | 16 | |
| 下旬 | 14.9 | 18.5 | 21.6 | 24 | 13.8 | 26 | 12.1 | 10.9 | 27* | 14.1 | 30 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 13.8 | 82 | 40 | 24 | |
| 上旬 | 17.0 | 20.3 | 24.2 | 03 | 15.5 | 09 | 14.5 | 13.0 | 10* | 15.9 | 07 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 16.7 | 86 | 56 | 03 | |
| 中旬 | 17.4 | 20.3 | 24.8 | 18 | 16.4 | 20 | 15.4 | 13.7 | 11 | 16.4 | 15 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 17.7 | 90 | 63 | 16 | |
| 下旬 | 20.2 | 23.1 | 28.0 | 28 | 15.8 | 21 | 17.7 | 14.6 | 21 | 20.7 | 28 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | 20.8 | 88 | 63 | 29 | |
| 上旬 | 21.6 | 25.2 | 31.0 | 08 | 17.8 | 01 | 18.7 | 16.1 | 01 | 21.2 | 09 | 0 | 0 | 0 | 0 | 0 | 6 | 1 | 0 | 22.9 | 89 | 66 | 08 | |
| 中旬 | 23.0 | 25.9 | 28.1 | 13 | 22.8 | 15 | 21.0 | 20.2 | 19* | 21.8 | 12 | 0 | 0 | 0 | 0 | 0 | 7 | 0 | 0 | 24.1 | 86 | 50 | 13 | |
| 下旬 | 22.1 | 24.4 | 26.7 | 24 | 20.7 | 30 | 20.7 | 19.0 | 29 | 22.3 | 24 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 0 | 23.4 | 87 | 62 | 25 | |
| 上旬 | 20.7 | 23.4 | 25.8 | 05 | 21.4 | 06 | 18.4 | 16.7 | 10 | 20.3 | 01 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 19.8 | 82 | 53 | 02 | |
| 中旬 | 16.8 | 20.0 | 23.6 | 11 | 16.8 | 12 | 13.8 | 11.7 | 14 | 16.2 | 19 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 14.2 | 74 | 26 | 11 | |
| 下旬 | 15.1 | 17.6 | 20.2 | 21 | 16.4 | 24 | 12.6 | 10.4 | 27* | 16.0 | 21 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 12.9 | 74 | 39 | 23 | |
| 上旬 | 14.9 | 17.4 | 19.9 | 04 | 13.6 | 06 | 12.2 | 9.4 | 06 | 15.2 | 03 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 13.1 | 76 | 33 | 05 | |
| 中旬 | 12.0 | 14.8 | 19.9 | 12 | 9.2 | 19 | 9.7 | 5.0 | 20* | 16.1 | 12 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10.9 | 72 | 37 | 20 | |
| 下旬 | 9.4 | 12.4 | 16.9 | 30 | 9.3 | 23 | 6.4 | 4.9 | 28 | 9.8 | 30 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.9 | 66 | 37 | 21 | |
| 上旬 | 10.0 | 12.5 | 17.0 | 08 | 8.2 | 02 | 6.9 | 3.6 | 03 | 10.1 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.1 | 72 | 38 | 05 | |
| 中旬 | 4.6 | 6.5 | 13.1 | 11 | 3.1 | 19 | 2.3 | 0.0 | 19 | 6.7 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.9 | 69 | 45 | 14 | |
| 下旬 | 2.0 | 4.4 | 10.7 | 22 | -0.4 | 30 | -0.2 | -3.8 | 29 | 6.9 | 22 | 4 | 0 | 6 | 0 | 1 | 0 | 0 | 0 | 5.1 | 68 | 44 | 27 | |
| 上旬 | -0.8 | 1.3 | 8.7 | 04 | -2.1 | 10 | -2.7 | -6.3 | 10 | 0.3 | 04 | 8 | 0 | 9 | 0 | 3 | 0 | 0 | 0 | 4.0 | 67 | 43 | 02 | |
| 中旬 | -3.1 | -1.4 | 1.0 | 11 | -6.1 | 15 | -4.8 | -8.4 | 15 | -2.3 | 20 | 10 | 0 | 10 | 0 | 6 | 0 | 0 | 0 | 3.4 | 68 | 47 | 19* | |
| 下旬 | -0.5 | 1.7 | 7.4 | 29 | -2.2 | 21 | -3.1 | -6.9 | 24 | 0.4 | 30* | 6 | 0 | 9 | 0 | 4 | 0 | 0 | 0 | 4.1 | 68 | 48 | 24 | |