月ごとの値
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室蘭（胆振地方) 2008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 | ||||||||||||||||||||||||||||
| 74.1 | 25 | 2 | 6 | 5.4 | 76 | 19 | 24 | 10 | 5 | 1 | 0 | 0 | 0 | 24 | 24 | 31 | 31 | 26 | 8 | 5 | 0 | 0 | 8.4 | 0 | 20 | 30 | 0 | 1 | |
| 126.3 | 41 | 2 | 14 | 9.2 | 39 | 8 | 06 | 7 | 3 | 0 | 0 | 0 | 0 | 27 | 06 | 29 | 29 | 29 | 29 | 13 | 0 | 0 | 7.7 | 0 | 13 | 26 | 0 | 0 | |
| 183.1 | 50 | 4 | 19 | 13.3 | 4 | 2 | 01 | 0 | 0 | 0 | 0 | 0 | 0 | 18 | 01 | 11 | 8 | 8 | 6 | 0 | 0 | 0 | 6.8 | 3 | 14 | 8 | 1 | 0 | |
| 198.7 | 50 | 5 | 20 | 16.5 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.7 | 4 | 10 | 1 | 6 | 0 | |||
| 187.9 | 42 | 8 | 18 | 17.7 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.0 | 4 | 12 | 0 | 8 | 0 | |||
| 178.1 | 39 | 4 | 15 | 19.5 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.4 | 0 | 15 | 0 | 7 | 1 | |||
| 129.6 | 28 | 10 | 11 | 15.0 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.7 | 0 | 24 | 0 | 14 | 2 | |||
| 148.2 | 35 | 12 | 12 | 14.3 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.5 | 4 | 20 | 0 | 7 | 1 | |||
| 204.2 | 55 | 3 | 21 | 15.2 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.4 | 2 | 9 | 0 | 4 | 0 | |||
| 153.9 | 45 | 2 | 15 | 10.0 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.6 | 3 | 11 | 0 | 2 | 3 | |||
| 121.9 | 42 | 2 | 12 | 6.5 | 4 | 3 | 20 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 20 | 5 | 2 | 0 | 0 | 0 | 0 | 0 | 6.8 | 3 | 10 | 11 | 0 | 3 | |
| 61.6 | 22 | 7 | 5 | 4.2 | 56 | 12 | 11 | 7 | 3 | 2 | 0 | 0 | 0 | 12 | 11 | 21 | 17 | 5 | 3 | 0 | 0 | 0 | 8.7 | 0 | 22 | 23 | 0 | 0 | |