月ごとの値
 |  |
 |
 |  |  |  |  |
 |  |  |  |  |  |
 |  |  |  |
一関 2004年（月ごとの値） 詳細（気温）
| 月 | 気温(℃) | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 平均 | 最高 | 最低 | 積算 | 各階級の日数（平均） | 各階級の日数（最低） | 各階級の日数（最高） | ||||||||||
| 日平均 | 日最高 | 日最低 | 値 | 日 時:分 | 値 | 日 時:分 | ＜0℃ | ≧25℃ | ＜0℃ | ≧25℃ | ＜0℃ | ≧25℃ | ≧30℃ | ≧35℃ | ||
| -0.1 | 3.9 | -3.3 | 8.4 | 01 12:50 | -7.0 | 10 06:20 | 0 | 18 | 0 | 28 | 0 | 1 | 0 | 0 | 0 | |
| 1.8 | 6.8 | -2.1 | 17.3 | 22 15:40 | -8.0 | 11 06:50 | 0 | 10 | 0 | 27 | 0 | 0 | 0 | 0 | 0 | |
| 4.3 | 9.9 | -0.6 | 21.2 | 17 14:40 | -6.1 | 05 06:00 | 12 | 5 | 0 | 20 | 0 | 0 | 0 | 0 | 0 | |
| 10.0 | 16.8 | 3.7 | 25.7 | 30 13:00 | -1.3 | 04 05:40 | 177 | 0 | 0 | 4 | 0 | 0 | 1 | 0 | 0 | |
| 15.5 | 20.8 | 10.8 | 30.1 | 30 13:50 | 4.1 | 06 04:30 | 480 | 0 | 0 | 0 | 0 | 0 | 3 | 1 | 0 | |
| 20.4 | 26.5 | 15.5 | 32.5 | 24 12:20 | 8.7 | 02 04:10 | 611 | 0 | 1 | 0 | 0 | 0 | 21 | 3 | 0 | |
| 23.9 | 29.2 | 20.1 | 34.8 | 09 14:30 | 13.3 | 03 03:40 | 742 | 0 | 16 | 0 | 0 | 0 | 26 | 17 | 0 | |
| 23.5 | 29.3 | 19.4 | 34.9 | 08 12:40 | 15.0 | 28 05:10 | 730 | 0 | 12 | 0 | 0 | 0 | 26 | 16 | 0 | |
| 20.7 | 25.2 | 17.2 | 32.6 | 01 13:00 | 13.3 | 15 05:50 | 620 | 0 | 0 | 0 | 0 | 0 | 15 | 3 | 0 | |
| 13.5 | 18.2 | 9.5 | 25.1 | 02 12:00 | 0.9 | 28 06:10 | 389 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | |
| 10.2 | 14.6 | 5.8 | 20.0 | 11 13:50 | -1.9 | 30 06:00 | 178 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | |
| 3.5 | 7.7 | -0.2 | 20.3 | 05 12:00 | -8.6 | 31 04:40 | 12 | 5 | 0 | 15 | 0 | 1 | 0 | 0 | 0 | |