| 観測時刻 | 気温[℃] | 路温[℃] | 路面状態 |
| 01/20 05:20 | -0.7 | -3.0 | --- |
| 01/20 05:30 | -0.7 | -3.0 | --- |
| 01/20 05:40 | -0.7 | -3.0 | --- |
| 01/20 05:50 | -0.8 | -3.0 | --- |
| 01/20 06:00 | -0.7 | -3.0 | --- |
| 01/20 06:10 | -1.1 | -3.2 | --- |
| 01/20 06:20 | -1.3 | -3.1 | --- |
| 01/20 06:30 | -0.9 | -3.0 | --- |
| 01/20 06:40 | -1.1 | -3.0 | --- |
| 01/20 06:50 | -1.0 | -3.0 | --- |
| 01/20 07:00 | -0.9 | -2.9 | --- |
| 01/20 07:10 | -1.3 | -2.8 | --- |
| 01/20 07:20 | -1.1 | -2.7 | --- |
| 01/20 07:30 | -1.6 | -2.8 | --- |
| 01/20 07:40 | -1.4 | -2.7 | --- |
| 01/20 07:50 | -1.0 | -2.5 | --- |
| 01/20 08:00 | -0.5 | -2.3 | --- |
| 01/20 08:10 | -0.3 | -1.9 | --- |
| 01/20 08:20 | -0.1 | -1.2 | --- |
| 01/20 08:30 | 0.0 | -0.7 | --- |
| 01/20 08:40 | 0.2 | -0.1 | --- |
| 01/20 08:50 | 1.0 | 0.5 | --- |
| 01/20 09:00 | 1.3 | 1.2 | --- |
| 01/20 09:10 | 2.1 | 2.1 | --- |