旬ごとの値
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室蘭（胆振地方) 2002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 | -1.0 | 1.2 | 5.9 | 08 | -2.3 | 02 | -3.0 | -6.1 | 03 | 0.2 | 08 | 7 | 0 | 9 | 0 | 3 | 0 | 0 | 0 | 4.1 | 70 | 44 | 05 | |
| 中旬 | -1.9 | 0.2 | 2.4 | 15 | -1.3 | 19 | -4.2 | -8.0 | 20 | -1.9 | 12 | 9 | 0 | 10 | 0 | 6 | 0 | 0 | 0 | 3.8 | 71 | 47 | 14 | |
| 下旬 | -0.7 | 1.6 | 6.4 | 22 | -0.4 | 24 | -2.3 | -4.6 | 31 | 1.3 | 22 | 9 | 0 | 10 | 0 | 1 | 0 | 0 | 0 | 4.4 | 74 | 54 | 26 | |
| 上旬 | -0.4 | 2.3 | 6.1 | 05 | -3.1 | 10 | -2.5 | -7.0 | 10 | 1.7 | 05 | 5 | 0 | 8 | 0 | 2 | 0 | 0 | 0 | 4.4 | 73 | 47 | 09 | |
| 中旬 | -1.5 | 1.1 | 4.4 | 18 | -3.3 | 11 | -3.9 | -7.1 | 12* | 0.4 | 20 | 6 | 0 | 9 | 0 | 4 | 0 | 0 | 0 | 4.1 | 73 | 47 | 20 | |
| 下旬 | 1.4 | 4.7 | 9.3 | 27 | 2.0 | 24 | -0.8 | -2.3 | 24 | 0.5 | 26 | 1 | 0 | 7 | 0 | 0 | 0 | 0 | 0 | 5.1 | 74 | 37 | 21 | |
| 上旬 | 0.4 | 3.3 | 8.4 | 09 | -1.8 | 03 | -2.6 | -7.9 | 02 | 1.1 | 10 | 5 | 0 | 8 | 0 | 2 | 0 | 0 | 0 | 4.6 | 72 | 36 | 01 | |
| 中旬 | 3.3 | 6.8 | 10.8 | 14 | 4.3 | 12 | 0.3 | -1.5 | 12 | 3.5 | 14 | 0 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 5.2 | 67 | 34 | 18* | |
| 下旬 | 4.2 | 7.9 | 10.8 | 30 | 3.8 | 24 | 1.4 | -1.1 | 25 | 3.2 | 26 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 5.7 | 69 | 30 | 27 | |
| 上旬 | 5.7 | 9.4 | 15.2 | 02 | 5.3 | 07 | 2.9 | 1.2 | 04 | 5.2 | 02 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.8 | 77 | 22 | 05 | |
| 中旬 | 8.3 | 12.8 | 17.2 | 15 | 6.7 | 13 | 5.0 | 0.4 | 13 | 8.9 | 16 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.2 | 75 | 28 | 20 | |
| 下旬 | 8.2 | 11.6 | 15.8 | 26 | 8.2 | 30 | 5.6 | 3.4 | 26 | 7.5 | 22 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.7 | 81 | 21 | 26 | |
| 上旬 | 10.6 | 15.3 | 17.0 | 06* | 13.3 | 10 | 7.0 | 3.5 | 02 | 8.6 | 04 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.4 | 67 | 21 | 02 | |
| 中旬 | 10.7 | 14.2 | 17.5 | 14 | 10.0 | 18 | 8.4 | 6.9 | 12 | 10.6 | 20 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10.6 | 83 | 46 | 14 | |
| 下旬 | 13.4 | 17.9 | 20.5 | 29 | 12.3 | 23 | 10.6 | 9.0 | 25 | 12.3 | 29 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 12.1 | 80 | 47 | 29 | |
| 上旬 | 14.6 | 19.1 | 25.7 | 08 | 14.2 | 02 | 11.6 | 9.7 | 06 | 14.7 | 08 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 13.4 | 82 | 36 | 10 | |
| 中旬 | 12.9 | 16.1 | 23.8 | 19 | 11.6 | 13 | 10.6 | 9.0 | 13 | 12.1 | 19 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 13.0 | 88 | 56 | 11 | |
| 下旬 | 12.9 | 15.6 | 18.2 | 30 | 12.2 | 21 | 10.7 | 7.6 | 25 | 14.3 | 30 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 13.2 | 89 | 56 | 24 | |
| 上旬 | 15.4 | 17.5 | 26.9 | 08 | 14.9 | 10 | 14.0 | 12.4 | 10 | 15.2 | 07 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 16.8 | 96 | 65 | 08 | |
| 中旬 | 18.4 | 21.2 | 27.1 | 13 | 16.8 | 11 | 16.3 | 12.5 | 11 | 18.5 | 15 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 19.8 | 94 | 66 | 13 | |
| 下旬 | 19.5 | 22.8 | 28.4 | 30 | 16.3 | 24 | 17.0 | 15.2 | 24 | 20.2 | 30 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 20.1 | 89 | 56 | 27 | |
| 上旬 | 19.4 | 22.2 | 25.7 | 01 | 18.2 | 03 | 17.6 | 15.5 | 03 | 19.2 | 01 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 21.1 | 94 | 57 | 02 | |
| 中旬 | 17.7 | 19.7 | 23.4 | 14 | 16.4 | 12 | 16.4 | 14.7 | 12 | 17.6 | 17* | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 19.0 | 94 | 62 | 14 | |
| 下旬 | 18.6 | 21.2 | 27.2 | 29 | 18.0 | 27 | 16.6 | 14.4 | 26 | 19.0 | 29 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 18.7 | 87 | 49 | 22 | |
| 上旬 | 19.3 | 22.3 | 26.4 | 03 | 19.1 | 06 | 16.5 | 12.4 | 05 | 19.9 | 02 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 18.9 | 84 | 43 | 04 | |
| 中旬 | 17.4 | 21.1 | 24.4 | 11 | 17.6 | 17 | 13.8 | 12.1 | 13 | 16.4 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 15.1 | 76 | 44 | 12 | |
| 下旬 | 15.7 | 19.0 | 20.7 | 21 | 16.4 | 24 | 12.7 | 10.2 | 25 | 16.1 | 28 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 13.9 | 78 | 42 | 23 | |
| 上旬 | 15.8 | 19.0 | 23.4 | 03 | 15.8 | 10 | 13.1 | 9.5 | 10 | 15.9 | 03 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 14.0 | 78 | 46 | 10 | |
| 中旬 | 13.5 | 17.1 | 19.5 | 12 | 11.9 | 20 | 10.0 | 4.3 | 20 | 14.2 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11.3 | 71 | 37 | 11 | |
| 下旬 | 8.8 | 11.7 | 14.4 | 26 | 8.0 | 30 | 6.3 | 3.5 | 31 | 9.5 | 23 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.8 | 69 | 40 | 21 | |
| 上旬 | 5.3 | 8.0 | 12.4 | 08 | 4.1 | 03 | 2.4 | -2.0 | 09 | 4.9 | 08* | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 6.2 | 69 | 47 | 04 | |
| 中旬 | 3.1 | 5.6 | 13.1 | 12 | 0.7 | 16 | 0.3 | -2.3 | 16 | 5.2 | 11 | 3 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 5.4 | 67 | 38 | 13 | |
| 下旬 | 3.2 | 5.4 | 9.1 | 26 | 1.4 | 22 | 0.6 | -4.6 | 21 | 3.3 | 25 | 1 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 5.6 | 71 | 48 | 30 | |
| 上旬 | 0.0 | 2.7 | 10.8 | 04 | -4.1 | 08 | -2.6 | -7.9 | 10 | 2.4 | 04 | 5 | 0 | 8 | 0 | 3 | 0 | 0 | 0 | 4.1 | 64 | 43 | 07* | |
| 中旬 | -1.1 | 1.1 | 4.8 | 16 | -5.3 | 11 | -3.2 | -8.2 | 11 | 1.6 | 15 | 6 | 0 | 8 | 0 | 4 | 0 | 0 | 0 | 4.0 | 69 | 49 | 19* | |
| 下旬 | -4.1 | -1.8 | 2.9 | 28 | -4.8 | 30* | -6.0 | -9.1 | 27 | -3.0 | 22 | 11 | 0 | 11 | 0 | 9 | 0 | 0 | 0 | 2.9 | 65 | 45 | 25 | |