Number of days available for climatic review
Paramètre | jan | fev | mar | avr | mai | juin |
Tmax | 175 | 159 | 178 | 173 | 178 | 172 |
Tmin | 181 | 159 | 177 | 162 | 177 | 169 |
Durée d’insolation | 252 | 210 | 283 | 272 | 298 | 274 |
Précipitation | 186 | 178 | 190 | 183 | 188 | 184 |
Humidité/Visibilité | 135 | 120 | 133 | 130 | 136 | 133 |
Paramètre | juillet | août | sep | oct | nov | déc |
Tmax | 175 | 177 | 203 | 203 | 195 | 202 |
Tmin | 176 | 180 | 199 | 202 | 197 | 198 |
Durée d’insolation | 281 | 275 | 294 | 302 | 288 | 305 |
Précipitation | 187 | 196 | 222 | 219 | 214 | 221 |
Humidité/Visibilité | 136 | 135 | 151 | 153 | 149 | 155 |
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. |