Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 396 | 361 | 392 | 414 | 426 | 413 |
Tmin | 397 | 360 | 398 | 415 | 428 | 414 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 121 | 101 | 100 | 129 | 127 | 123 |
Humidity/Visibility | 54 | 55 | 65 | 85 | 87 | 83 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 421 | 429 | 410 | 420 | 400 | 413 |
Tmin | 424 | 429 | 415 | 430 | 406 | 429 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 136 | 137 | 124 | 124 | 134 | 180 |
Humidity/Visibility | 77 | 84 | 83 | 84 | 76 | 62 |
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. |