月ごとの値
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室蘭（胆振地方) 2013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 | ||||||||||||||||||||||||||||
| 97.8 | 34 | 3 | 10 | 6.2 | 62 | 10 | 28 | 10 | 6 | 1 | 0 | 0 | 0 | 20 | 29* | 30 | 29 | 24 | 15 | 2 | 0 | 0 | 7.7 | 1 | 16 | 27 | 0 | 0 | |
| 105.2 | 36 | 1 | 12 | 8.8 | 65 | 12 | 11* | 9 | 5 | 2 | 0 | 0 | 0 | 26 | 11 | 28 | 28 | 28 | 26 | 14 | 0 | 0 | 8.0 | 0 | 11 | 26 | 0 | 0 | |
| 155.0 | 42 | 4 | 17 | 12.5 | 24 | 5 | 02 | 4 | 1 | 0 | 0 | 0 | 0 | 22 | 02 | 20 | 19 | 15 | 12 | 4 | 0 | 0 | 7.1 | 0 | 8 | 24 | 0 | 1 | |
| 169.4 | 42 | 5 | 15 | 15.1 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.5 | 0 | 14 | 6 | 1 | 0 | |||
| 171.5 | 38 | 5 | 14 | 17.0 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.8 | 2 | 20 | 0 | 5 | 1 | |||
| 163.0 | 36 | 4 | 11 | 19.0 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.6 | 2 | 15 | 0 | 17 | 0 | |||
| 118.3 | 26 | 10 | 9 | 14.4 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.3 | 1 | 20 | 0 | 10 | 0 | |||
| 184.8 | 43 | 4 | 18 | 16.3 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.5 | 0 | 15 | 0 | 2 | 5 | |||
| 156.1 | 42 | 7 | 15 | 12.6 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.1 | 3 | 15 | 0 | 1 | 3 | |||
| 115.4 | 34 | 7 | 10 | 8.2 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.2 | 0 | 13 | 0 | 0 | 1 | |||
| 97.2 | 33 | 2 | 8 | 5.8 | 12 | 6 | 28 | 2 | 1 | 0 | 0 | 0 | 0 | 3 | 28 | 5 | 4 | 0 | 0 | 0 | 0 | 0 | 7.7 | 2 | 17 | 8 | 0 | 2 | |
| 88.9 | 32 | 2 | 10 | 5.0 | 6 | 2 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 13 | 13 | 8 | 0 | 0 | 0 | 0 | 0 | 8.1 | 2 | 19 | 23 | 0 | 0 | |