月ごとの値
 |  |
 |  |
 |  |  |  |  |  |  |
 |  |  |  |  |  |
 |  |  |  |  |
飯田（長野県) 1998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 | ||||||||||||||||||||||||||||
| 132.4 | 43 | 6 | 17 | 59 | 22 | 12 | 6 | 4 | 3 | 1 | 0 | 0 | 29 | 12 | 26 | 24 | 24 | 21 | 7 | 0 | 0 | 6.5 | 3 | 7 | 18 | 8 | 0 | ||
| 152.9 | 50 | 3 | 17 | 23 | 12 | 09 | 3 | 2 | 1 | 0 | 0 | 0 | 15 | 09 | 9 | 8 | 4 | 1 | 0 | 0 | 0 | 6.0 | 4 | 7 | 5 | 2 | 1 | ||
| 208.4 | 56 | 3 | 24 | 0 | 0 | 15* | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.1 | 3 | 8 | 3 | 2 | 0 | |||
| 154.2 | 39 | 7 | 14 | 0 | 0 | 01 | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.2 | 2 | 13 | 1 | 2 | 1 | |||
| 160.7 | 37 | 7 | 12 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.9 | 1 | 18 | 0 | 0 | 2 | ||||
| 123.6 | 28 | 7 | 12 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.8 | 0 | 22 | 0 | 0 | 1 | ||||
| 164.1 | 37 | 2 | 14 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.2 | 0 | 17 | 0 | 1 | 4 | ||||
| 156.7 | 38 | 1 | 14 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.3 | 0 | 19 | 0 | 1 | 10 | ||||
| 116.1 | 31 | 4 | 12 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.0 | 0 | 18 | 0 | 7 | 4 | ||||
| 121.5 | 35 | 8 | 15 | -- | -- | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.8 | 0 | 17 | 0 | 9 | 1 | ||||
| 159.6 | 52 | 2 | 22 | 0 | 0 | 21 | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.5 | 3 | 3 | 1 | 11 | 1 | |||
| 158.2 | 52 | 3 | 20 | 0 | 0 | 31* | 0 | 0 | 0 | 0 | 0 | 0 | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.8 | 6 | 7 | 3 | 6 | 0 | |||