Number of days available for climatic review
| Paramètre | jan | fev | mar | avr | mai | juin |
| Tmax | 1894 | 1695 | 1889 | 1840 | 1903 | 1843 |
| Tmin | 1862 | 1680 | 1862 | 1800 | 1863 | 1814 |
| Durée d’insolation | 0 | 0 | 0 | 0 | 0 | 0 |
| Précipitation | 164 | 143 | 159 | 165 | 164 | 158 |
| Humidité/Visibilité | 66 | 43 | 71 | 70 | 83 | 77 |
| Paramètre | juillet | août | sep | oct | nov | déc |
| Tmax | 1884 | 1889 | 1827 | 1897 | 1838 | 1888 |
| Tmin | 1864 | 1860 | 1801 | 1860 | 1800 | 1860 |
| Durée d’insolation | 0 | 0 | 0 | 0 | 0 | 0 |
| Précipitation | 171 | 180 | 188 | 186 | 196 | 214 |
| Humidité/Visibilité | 63 | 66 | 75 | 79 | 83 | 67 |
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. |
