月ごとの値
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根室（根室地方) 1977年（月ごとの値） 詳細（日照・雪・その他）
| 月 | 日照時間(h) | 全天日射量 (MJ/㎡) | 雪(cm) | 雲量 | 大気現象 | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 合計 | 日照率 | 各階級の日数 | 降雪 | 各階級の日数（降雪） | 最深積雪 | 各階級の日数（最深積雪） | 平均 | 各階級の日数 | 雪日数 | 霧日数 | 雷日数 | ||||||||||||||||||
| 不照 | 日照率 ≧40% | 平均 | 合計 | 日合計の最大 | ≧3cm | ≧5cm | ≧10cm | ≧20cm | ≧50cm | ≧100cm | 値 | 日 | ≧0cm | ≧1cm | ≧5cm | ≧10cm | ≧20cm | ≧50cm | ≧100cm | ＜1.5 | ≧8.5 | ||||||||
| 値 | 日 | ||||||||||||||||||||||||||||
| 204.5 | 71 | 1 | 27 | 8.0 | 22 | 6 | 10 | 4 | 2 | 0 | 0 | 0 | 0 | 30 | 26 | 31 | 31 | 31 | 28 | 15 | 0 | 0 | 4.2 | 7 | 5 | 17 | 0 | 0 | |
| 208.0 | 71 | 0 | 25 | 11.4 | 14 | 7 | 03 | 2 | 2 | 0 | 0 | 0 | 0 | 55 | 11 | 28 | 28 | 28 | 28 | 28 | 2 | 0 | 4.7 | 3 | 1 | 16 | 1 | 0 | |
| 221.3 | 60 | 5 | 24 | 14.1 | 22 | 15 | 03 | 2 | 1 | 1 | 0 | 0 | 0 | 58 | 04* | 21 | 20 | 11 | 10 | 9 | 2 | 0 | 6.0 | 1 | 11 | 16 | 3 | 0 | |
| 186.8 | 47 | 3 | 18 | 15.0 | 8 | 3 | 28* | 2 | 0 | 0 | 0 | 0 | 0 | 3 | 28* | 6 | 5 | 0 | 0 | 0 | 0 | 0 | 6.7 | 1 | 10 | 11 | 7 | 0 | |
| 182.9 | 40 | 5 | 14 | 16.4 | 12 | 9 | 03 | 2 | 1 | 0 | 0 | 0 | 0 | 15 | 03 | 3 | 3 | 1 | 1 | 0 | 0 | 0 | 7.8 | 1 | 16 | 3 | 16 | 0 | |
| 142.9 | 31 | 7 | 9 | 16.3 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.7 | 0 | 22 | 0 | 18 | 0 | |||
| 178.0 | 38 | 8 | 16 | 16.8 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.1 | 0 | 17 | 0 | 16 | 0 | |||
| 111.6 | 26 | 9 | 8 | 12.9 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.0 | 0 | 24 | 0 | 18 | 0 | |||
| 154.7 | 41 | 6 | 15 | 12.2 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.4 | 2 | 11 | 0 | 11 | 2 | |||
| 191.9 | 56 | 2 | 21 | 10.1 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.1 | 6 | 7 | 0 | 4 | 1 | |||
| 144.3 | 50 | 9 | 17 | 6.2 | 0 | 0 | 30* | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.8 | 5 | 11 | 1 | 2 | 0 | ||
| 162.2 | 58 | 2 | 23 | 5.6 | 5 | 3 | 24 | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 24 | 7 | 6 | 0 | 0 | 0 | 0 | 0 | 4.9 | 3 | 4 | 14 | 2 | 0 | |