Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 470 | 450 | 524 | 506 | 520 | 509 |
Tmin | 471 | 450 | 525 | 509 | 520 | 507 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 0 | 0 | 0 | 0 | 0 | 0 |
Humidity/Visibility | 45 | 41 | 65 | 61 | 71 | 64 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 520 | 516 | 507 | 521 | 508 | 524 |
Tmin | 521 | 516 | 508 | 522 | 509 | 527 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 0 | 0 | 0 | 0 | 0 | 0 |
Humidity/Visibility | 64 | 59 | 66 | 65 | 66 | 67 |
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. |