April 2009
Temperature
Max | 17.4°C | on 23 Apr 2009 at 15:40:00 |
Min | -0.5°C | on 12 Apr 2009 at 06:30:00 |
Mean max | 12.8°C | |
Mean min | 4°C | |
Highest min | 9.4°C | on 24 Apr 2009 at 00:30:00 |
Lowest max | 9.1°C | on 04 Apr 2009 at 16:40:00 |
Mean temperature | ||
Method 1 | 8.3°C | Average of all temperature data points |
Method 2 | 8.35°C | Average of day max/min values |
Lows | Highs | ||
≤-10°C | 0 | ≤5°C | 0 |
-5 to -10°C | 0 | 5 to 10°C | 2 |
0 to -5°C | 2 | 10 to 15°C | 23 |
0 to 5°C | 19 | 15 to 20°C | 5 |
5 to 10°C | 9 | 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 | 0 | 10 to 15°C | 4 |
0 to 5°C | 0 | 15 to 20°C | 0 |
5 to 10°C | 26 | ≥20°C | 0 |
Lowest average 5.3 on 28 Apr;
Highest average 12.5 on 24 Apr
![Temperature for April 2009](archive/2009-04/temperature.png)
Air pressure
Max | 1027.6 mb | 21 Apr at 22:10:00 |
Min | 992.1 mb | 27 Apr at 09:50:00 |
Average | 1010.8 mb |
![Pressure for April 2009](archive/2009-04/pressure.png)
Rainfall
Total | 70.2 mm |
Days of rain | 16 (≥0.5mm) |
Wettest day | 19.74 mm on 27 Apr |
![Rainfall for April 2009](archive/2009-04/rain.png)
Wind
Max | 38 mph | on 18 Apr at 11:40:00 |
Max gust | 57 mph | on 18 Apr at 11:40:00 |
Average | 7.9 mph | |
Average direction | 101° | (3.1 mph) |
Steadiness factor | 40% | |
Prevailing direction | 155° | (not weighted for speed) |
Prevailing wind rose | Wind speed rose |
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Humidity
![Humidity for April 2009](archive/2009-04/humidity.png)
All calculations based on 00:00-23:59 day
Generated Sat May 2 20:12:06 2009