Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 525 | 476 | 551 | 533 | 552 | 529 |
Tmin | 526 | 475 | 554 | 537 | 556 | 535 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 404 | 365 | 434 | 423 | 434 | 420 |
Humidity/Visibility | 59 | 54 | 90 | 83 | 83 | 84 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 548 | 548 | 539 | 552 | 539 | 555 |
Tmin | 547 | 545 | 537 | 553 | 539 | 558 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 436 | 436 | 422 | 432 | 450 | 445 |
Humidity/Visibility | 76 | 71 | 86 | 84 | 84 | 85 |
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. |