Number of days available for climatic review
Paramètre | jan | fev | mar | avr | mai | juin |
Tmax | 182 | 163 | 164 | 148 | 152 | 147 |
Tmin | 179 | 166 | 184 | 175 | 180 | 177 |
Durée d’insolation | 179 | 163 | 183 | 175 | 180 | 176 |
Précipitation | 188 | 168 | 188 | 185 | 188 | 180 |
Humidité/Visibilité | 135 | 124 | 132 | 125 | 129 | 126 |
Paramètre | juillet | août | sep | oct | nov | déc |
Tmax | 150 | 152 | 166 | 176 | 178 | 179 |
Tmin | 168 | 179 | 194 | 177 | 174 | 180 |
Durée d’insolation | 168 | 177 | 195 | 178 | 175 | 180 |
Précipitation | 184 | 190 | 214 | 219 | 219 | 227 |
Humidité/Visibilité | 123 | 126 | 146 | 155 | 152 | 154 |
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. |