月ごとの値
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室蘭（胆振地方) 2015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 | ||||||||||||||||||||||||||||
| 79.9 | 27 | 3 | 6 | 5.2 | 51 | 17 | 17 | 5 | 3 | 2 | 0 | 0 | 0 | 22 | 18 | 30 | 24 | 15 | 9 | 1 | 0 | 0 | 8.1 | 1 | 17 | 28 | 0 | 0 | |
| 142.0 | 48 | 4 | 18 | 9.5 | 27 | 11 | 09 | 3 | 2 | 1 | 0 | 0 | 0 | 14 | 13* | 23 | 23 | 16 | 6 | 0 | 0 | 0 | 7.0 | 1 | 11 | 21 | 1 | 0 | |
| 172.9 | 47 | 4 | 18 | 13.1 | 14 | 8 | 04 | 1 | 1 | 0 | 0 | 0 | 0 | 6 | 04 | 9 | 8 | 1 | 0 | 0 | 0 | 0 | 7.2 | 0 | 14 | 16 | 1 | 0 | |
| 202.1 | 51 | 5 | 18 | 16.3 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.0 | 5 | 11 | 1 | 5 | 0 | |||
| 242.9 | 54 | 2 | 21 | 20.6 ) | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.2 | 3 | 8 | 0 | 6 | 0 | |||
| 164.9 | 36 | 6 | 14 | 18.8 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.3 | 0 | 15 | 0 | 9 | 1 | |||
| 211.2 | 46 | 4 | 17 | 19.4 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.5 | 2 | 16 | 0 | 8 | 0 | |||
| 137.9 | 32 | 6 | 12 | 14.9 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.5 | 0 | 20 | 0 | 5 | 0 | |||
| 164.9 | 44 | 7 | 16 | 13.0 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.6 | 3 | 13 | 0 | 0 | 1 | |||
| 171.6 | 50 | 1 | 20 | 10.5 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.9 | 5 | 6 | 2 | 0 | 0 | |||
| 118.0 | 40 | 4 | 13 | 6.6 | 1 | 1 | 24 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 24 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 7.1 | 1 | 14 | 6 | 0 | 0 | |
| 84.4 | 30 | 3 | 8 | 4.7 | 9 | 2 | 30 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 30 | 14 | 9 | 0 | 0 | 0 | 0 | 0 | 8.0 | 1 | 20 | 17 | 0 | 0 | |