Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 484 | 469 | 526 | 508 | 517 | 521 |
Tmin | 480 | 468 | 526 | 507 | 518 | 518 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 94 | 85 | 95 | 91 | 93 | 107 |
Humidity/Visibility | 91 | 84 | 91 | 88 | 90 | 101 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 554 | 552 | 536 | 545 | 537 | 556 |
Tmin | 554 | 553 | 536 | 538 | 534 | 553 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 128 | 130 | 120 | 120 | 120 | 130 |
Humidity/Visibility | 120 | 120 | 117 | 117 | 117 | 121 |
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. |