| Hourly Rel. Humid. | Date | Time | Temp (C) | Wind Speed | Dew Point (C) |
| 10 | 26 Dec 1990 | 1400 | 30.7 | 16 | -5 |
| 9 | 26 Dec 1990 | 1700 | 30.8 | 12 | -5 |
| 3 | 28 Dec 1990 | 1100 | 31.8 | 14 | -20 |
| 7 | 28 Dec 1990 | 1400 | 32.1 | 16 | -8 |
| 7 | 28 Dec 1990 | 1700 | 32.1 | 13 | -8 |
| 10 | 13 Feb 1991 | 1400 | 33.6 | 14 | -2 |
| 8 | 13 Feb 1991 | 1700 | 33 | 5 | -5 |
| 8 | 14 Feb 1991 | 1400 | 36.9 | 16 | -2 |
| 7 | 14 Feb 1991 | 1700 | 36.1 | 10 | -6 |