Number of days available for climatic review
| Parameter | Jan | Feb | Mar | Apr | May | Jun |
| Tmax | 61 | 44 | 44 | 52 | 78 | 78 |
| Tmin | 74 | 62 | 63 | 73 | 96 | 88 |
| Duration of sunshine | 12 | 8 | 5 | 18 | 15 | 19 |
| Precipitation | 104 | 98 | 91 | 119 | 121 | 125 |
| Humidity/Visibility | 72 | 58 | 55 | 65 | 88 | 87 |
| Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
| Tmax | 55 | 59 | 67 | 48 | 48 | 51 |
| Tmin | 87 | 85 | 89 | 84 | 55 | 69 |
| Duration of sunshine | 9 | 7 | 8 | 2 | 4 | 8 |
| Precipitation | 124 | 128 | 127 | 112 | 106 | 111 |
| Humidity/Visibility | 87 | 86 | 84 | 71 | 56 | 72 |
Climate data is usually derived from meteorological data of a certain number of years. The actual number of recorded years may vary from only a couple to 50 years or more. The quality of climate data depends on the number of available recorded years. Fewer years means less reliable data. The standart-period for reliable climate data is 30 years. For example, the mean monthly temperature for, let's say January, would ideally calculated from a total number of 930 recorded January-days. However, the usual number of recorded days is much smaller. The table above shows the actual number of recorded days for every parameter measured. |
Hahaya-Aéroport