Number of days available for climatic review
| Paramètre | jan | fev | mar | avr | mai | juin |
| Tmax | 1613 | 1456 | 1612 | 1561 | 1614 | 1562 |
| Tmin | 1613 | 1456 | 1612 | 1560 | 1612 | 1561 |
| Durée d’insolation | 186 | 197 | 186 | 210 | 217 | 150 |
| Précipitation | 0 | 3 | 8 | 30 | 32 | 47 |
| Humidité/Visibilité | 61 | 56 | 60 | 52 | 55 | 63 |
| Paramètre | juillet | août | sep | oct | nov | déc |
| Tmax | 1619 | 1618 | 1560 | 1614 | 1571 | 1613 |
| Tmin | 1612 | 1612 | 1560 | 1613 | 1562 | 1612 |
| Durée d’insolation | 217 | 186 | 210 | 217 | 180 | 186 |
| Précipitation | 40 | 67 | 35 | 9 | 3 | 2 |
| Humidité/Visibilité | 80 | 68 | 80 | 85 | 88 | 92 |
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. |
