Number of days available for climatic review
| Paramètre | jan | fev | mar | avr | mai | juin |
| Tmax | 2088 | 1892 | 2096 | 2027 | 2074 | 2025 |
| Tmin | 2097 | 1902 | 2102 | 2029 | 2082 | 2032 |
| Durée d’insolation | 62 | 57 | 62 | 60 | 124 | 150 |
| Précipitation | 186 | 169 | 187 | 181 | 186 | 180 |
| Humidité/Visibilité | 183 | 165 | 182 | 177 | 179 | 175 |
| Paramètre | juillet | août | sep | oct | nov | déc |
| Tmax | 2088 | 2094 | 2056 | 2126 | 2062 | 2135 |
| Tmin | 2101 | 2101 | 2059 | 2128 | 2069 | 2134 |
| Durée d’insolation | 155 | 124 | 120 | 124 | 60 | 62 |
| Précipitation | 186 | 190 | 210 | 215 | 210 | 217 |
| Humidité/Visibilité | 178 | 179 | 199 | 206 | 203 | 216 |
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. |
