Number of days available for climatic review
Paramètre | jan | fev | mar | avr | mai | juin |
Tmax | 118 | 108 | 123 | 145 | 151 | 144 |
Tmin | 121 | 108 | 124 | 144 | 152 | 141 |
Durée d’insolation | 248 | 198 | 279 | 240 | 248 | 180 |
Précipitation | 128 | 114 | 126 | 152 | 157 | 152 |
Humidité/Visibilité | 121 | 111 | 122 | 146 | 151 | 146 |
Paramètre | juillet | août | sep | oct | nov | déc |
Tmax | 149 | 151 | 148 | 143 | 144 | 148 |
Tmin | 151 | 154 | 147 | 144 | 145 | 149 |
Durée d’insolation | 279 | 217 | 240 | 279 | 270 | 217 |
Précipitation | 159 | 161 | 152 | 159 | 158 | 169 |
Humidité/Visibilité | 153 | 150 | 146 | 146 | 142 | 146 |
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. |