Number of days available for climatic review
| Paramètre | jan | fev | mar | avr | mai | juin |
| Tmax | 6624 | 0 | 2461447 | 0 | 200 | 0 |
| Tmin | 2423860 | 0 | 5440832 | 0 | 543420544 | 8 |
| Durée d’insolation | 2059444232 | 3246 | 73728 | 0 | 1560298490 | 1863037128 |
| Précipitation | 2059438088 | 3246 | 2059439112 | 3246 | 2059440136 | 3246 |
| Humidité/Visibilité | 2059415560 | 3246 | 2059416584 | 3246 | 2059417608 | 3246 |
| Paramètre | juillet | août | sep | oct | nov | déc |
| Tmax | 2063895616 | 3246 | 0 | 0 | 0 | 0 |
| Tmin | 704743214 | 8 | 2061513272 | 3246 | -1088366048 | 8691 |
| Durée d’insolation | 255 | 0 | 705600080 | 8 | 254 | 0 |
| Précipitation | 2059441160 | 3246 | 543420448 | 8 | 705304031 | 8 |
| Humidité/Visibilité | 2059418632 | 3246 | 2059436040 | 3246 | 2059437064 | 3246 |
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. |
