Summary statistics for daily meteorological variables (the Meteorological Institute of Tromsø, 1974–2004)
| Parameter | Mean (SD) | Minimum | Median | Maximum | IQR |
| Daily mean temperature (°C) | 2.9 (6.7) | −16.1 | 2.6 | 23.4 | 10.0 |
| Minimum temperature (°C) | 0.4 (6.4) | −18.3 | 0.4 | 18.0 | 9.8 |
| Maximum temperature (°C) | 5.6 (7.3) | −14.6 | 4.7 | 29.5 | 10.7 |
| Mean wind speed (m/s) | 3.3 (2.0) | 0.0 | 2.9 | 12.9 | 2.6 |
| Maximum wind speed (m/s) | 4.6 (2.3) | 0.0 | 4.1 | 18.5 | 3.6 |
| Sunlight (h) | 3.6 (5.2) | 0.0 | 0.8 | 24.0 | 5.6 |
| Mean atmospheric pressure (hPa) | 1007.5 (12.6) | 953.6 | 1008.8 | 1046.0 | 16.2 |
| Mean relative humidity (%) | 74.3 (15.1) | 21.0 | 76.0 | 99.0 | 22.0 |
| Precipitation (mm) | 3.0 (5.0) | 0.0 | 0.4 | 49.5 | 4.0 |
| Snow cover on ground (cm) | 34.2 (45.7) | 0.0 | 5.0 | 240.0 | 61 |