Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 394 | 361 | 395 | 416 | 422 | 416 |
Tmin | 526 | 473 | 524 | 538 | 555 | 537 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 95 | 92 | 97 | 127 | 126 | 125 |
Humidity/Visibility | 67 | 60 | 66 | 86 | 86 | 84 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 421 | 430 | 414 | 427 | 410 | 422 |
Tmin | 553 | 558 | 539 | 552 | 529 | 555 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 128 | 128 | 120 | 123 | 128 | 128 |
Humidity/Visibility | 85 | 90 | 87 | 86 | 82 | 88 |
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. |