月ごとの値
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根室（根室地方) 2009年（月ごとの値） 詳細（気温・蒸気圧・湿度）
| 月 | 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 | ||||||||||||||
| -1.2 | 1.1 | 4.8 | 24 | -2.6 | 31 | -3.9 | -9.3 | 28 | 0.7 | 23 | 24 | 0 | 27 | 0 | 6 | 0 | 0 | 0 | 4.1 | 71 | 22 | 24 | |
| -3.3 | -0.7 | 3.1 | 14 | -4.3 | 01 | -6.5 | -10.1 | 22* | -0.6 | 14 | 25 | 0 | 28 | 0 | 18 | 0 | 0 | 0 | 3.4 | 68 | 29 | 16 | |
| 0.3 | 3.3 | 7.2 | 16* | -1.0 | 03 | -2.3 | -5.9 | 03 | 1.6 | 19 | 10 | 0 | 28 | 0 | 2 | 0 | 0 | 0 | 4.7 | 74 | 28 | 09 | |
| 3.7 | 7.7 | 22.7 | 30 | 2.1 | 01 | 0.2 | -2.0 | 02* | 3.4 | 10 | 1 | 0 | 13 | 0 | 0 | 0 | 0 | 0 | 5.6 | 72 | 18 | 30 | |
| 8.8 | 13.4 | 22.0 | 20 | 6.8 | 31 | 5.3 | 1.4 | 11 | 9.4 | 19 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.5 | 77 | 24 | 09 | |
| 10.2 | 13.8 | 24.4 | 25 | 7.7 | 14 | 7.5 | 4.9 | 18 | 10.7 | 23 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10.9 | 87 | 49 | 24 | |
| 13.4 | 17.1 | 28.8 | 09 | 10.6 | 02 | 10.8 | 8.0 | 03 | 13.9 | 09 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 13.4 | 87 | 42 | 09 | |
| 16.5 | 20.0 | 25.3 | 23 | 13.4 | 02 | 13.9 | 10.2 | 02 | 16.8 | 28 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 16.0 | 85 | 47 | 30* | |
| 15.5 | 18.7 | 22.1 | 14 | 15.0 | 01 | 12.9 | 10.0 | 21 | 15.6 | 05 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 14.0 | 80 | 44 | 21 | |
| 11.6 | 14.8 | 21.7 | 03 | 6.9 | 31 | 8.5 | 2.3 | 25 | 13.7 | 03 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.9 | 71 | 33 | 16 | |
| 5.3 | 8.0 | 15.5 | 05 | 2.4 | 29 | 2.5 | -2.6 | 22 | 10.4 | 08 | 0 | 0 | 8 | 0 | 0 | 0 | 0 | 0 | 6.6 | 70 | 30 | 03 | |
| -0.6 | 1.7 | 7.9 | 06 | -2.3 | 25 | -3.3 | -8.1 | 26 | 3.6 | 06 | 21 | 0 | 25 | 0 | 10 | 0 | 0 | 0 | 3.9 | 65 | 27 | 15 | |