Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 530 | 498 | 547 | 520 | 541 | 540 |
Tmin | 543 | 510 | 559 | 528 | 550 | 538 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 142 | 131 | 141 | 130 | 111 | 112 |
Humidity/Visibility | 142 | 122 | 141 | 135 | 143 | 134 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 539 | 540 | 522 | 541 | 533 | 549 |
Tmin | 545 | 546 | 527 | 544 | 534 | 549 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 127 | 167 | 150 | 148 | 128 | 135 |
Humidity/Visibility | 140 | 160 | 168 | 158 | 138 | 147 |
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. |