月ごとの値
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室蘭（胆振地方) 2000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 | ||||||||||||||||||||||||||||
| 106.1 | 36 | 3 | 13 | 6.0 | 76 | 22 | 20 | 7 | 5 | 2 | 1 | 0 | 0 | 30 | 20 | 30 | 29 | 22 | 14 | 11 | 0 | 0 | 7.2 | 1 | 13 | 29 | 0 | 0 | |
| 151.9 | 50 | 1 | 18 | 10.3 | 30 | 11 | 28 | 3 | 2 | 1 | 0 | 0 | 0 | 31 | 28 | 29 | 29 | 29 | 29 | 26 | 0 | 0 | 6.9 | 0 | 5 | 25 | 0 | 0 | |
| 163.2 | 44 | 2 | 19 | 13.6 | 14 | 2 | 17* | 0 | 0 | 0 | 0 | 0 | 0 | 25 | 01 | 25 | 22 | 15 | 10 | 3 | 0 | 0 | 7.4 | 0 | 10 | 24 | 0 | 0 | |
| 158.4 | 40 | 5 | 13 | 15.4 | 0 | 0 | 12* | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.7 | 2 | 10 | 5 | 0 | 1 | ||
| 135.1 | 30 | 10 | 13 | 15.5 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.2 | 0 | 19 | 0 | 17 | 0 | |||
| 177.8 | 39 | 5 | 15 | 19.1 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.1 | 1 | 11 | 0 | 6 | 2 | |||
| 145.0 | 31 | 3 | 12 | 17.1 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.2 | 0 | 18 | 0 | 11 | 1 | |||
| 179.6 | 42 | 4 | 15 | 17.1 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.2 | 2 | 15 | 0 | 6 | 1 | |||
| 139.7 | 37 | 11 | 14 | 11.7 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.6 | 3 | 16 | 0 | 1 | 1 | |||
| 183.9 | 54 | 2 | 21 | 11.3 | 0 | 0 | 26* | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.3 | 0 | 7 | 2 | 0 | 1 | ||
| 93.4 | 32 | 5 | 12 | 5.9 | 7 | 5 | 28 | 1 | 1 | 0 | 0 | 0 | 0 | 4 | 30 | 6 | 4 | 0 | 0 | 0 | 0 | 0 | 7.7 | 0 | 13 | 16 | 0 | 1 | |
| 68.0 | 24 | 1 | 8 | 4.6 | 19 | 5 | 27 | 4 | 1 | 0 | 0 | 0 | 0 | 5 | 16 | 26 | 15 | 1 | 0 | 0 | 0 | 0 | 8.5 | 0 | 18 | 30 | 0 | 0 | |