December 2008
Temperature
| Max | 10.1°C | on 20 Dec 2008 at 13:20:00 |
| Min | -4.6°C | on 11 Dec 2008 at 07:30:00 |
| Mean max | 5.6°C | |
| Mean min | 0.3°C | |
| Highest min | 8.6°C | on 20 Dec 2008 at 23:40:00 |
| Lowest max | 0.3°C | on 30 Dec 2008 at 11:50:00 |
| Mean temperature | ||
| Method 1 | 2.9°C | Average of all temperature data points |
| Method 2 | 3°C | Average of day max/min values |
| Lows | Highs | ||
| ≤-10°C | 0 | ≤5°C | 14 |
| -5 to -10°C | 0 | 5 to 10°C | 16 |
| 0 to -5°C | 17 | 10 to 15°C | 1 |
| 0 to 5°C | 10 | 15 to 20°C | 0 |
| 5 to 10°C | 4 | 20 to 25°C | 0 |
| 10 to 15°C | 0 | 25 to 30°C | 0 |
| >15°C | 0 | ≥30°C | 0 |
| Day average | |||
| <0°C | 6 | 10 to 15°C | 0 |
| 0 to 5°C | 17 | 15 to 20°C | 0 |
| 5 to 10°C | 8 | ≥20°C | 0 |
Lowest average -2.4 on 30 Dec;
Highest average 9.4 on 20 Dec
Air pressure
| Max | 1036.2 mb | 26 Dec at 23:10:00 |
| Min | 975.3 mb | 04 Dec at 05:20:00 |
| Average | 1016.2 mb |
Rainfall
| Total | 88.9 mm |
| Days of rain | 16 (≥0.5mm) |
| Wettest day | 19.23 mm on 04 Dec |
Wind
| Max | 114.3 mph | on 04 Dec at 02:50:00 |
| Max gust | 114.3 mph | on 02 Dec at 09:40:00 |
| Average | 80.8 mph | |
| Average direction | 202° | (19.2 mph) |
| Steadiness factor | 24% | |
| Prevailing direction | 194° | (not weighted for speed) |
| Prevailing wind rose | Wind speed rose |
|---|---|
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Humidity
All calculations based on 00:00-23:59 day
Generated Thu Jan 1 00:00:39 2009