Number of days available for climatic review
Paramètre | jan | fev | mar | avr | mai | juin |
Tmax | 371 | 335 | 370 | 374 | 399 | 388 |
Tmin | 370 | 336 | 367 | 372 | 395 | 386 |
Durée d’insolation | 32 | 42 | 49 | 68 | 78 | 83 |
Précipitation | 62 | 58 | 62 | 75 | 94 | 93 |
Humidité/Visibilité | 61 | 55 | 60 | 73 | 88 | 87 |
Paramètre | juillet | août | sep | oct | nov | déc |
Tmax | 394 | 400 | 383 | 396 | 383 | 402 |
Tmin | 394 | 396 | 386 | 394 | 390 | 403 |
Durée d’insolation | 80 | 76 | 64 | 49 | 43 | 27 |
Précipitation | 91 | 93 | 94 | 90 | 91 | 95 |
Humidité/Visibilité | 87 | 89 | 84 | 85 | 86 | 91 |
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. |