Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 527 | 496 | 545 | 522 | 533 | 514 |
Tmin | 524 | 499 | 549 | 521 | 539 | 513 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 155 | 141 | 156 | 172 | 186 | 180 |
Humidity/Visibility | 152 | 138 | 153 | 167 | 178 | 175 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 487 | 521 | 535 | 566 | 558 | 569 |
Tmin | 488 | 522 | 532 | 564 | 556 | 570 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 188 | 188 | 180 | 184 | 180 | 187 |
Humidity/Visibility | 180 | 178 | 174 | 177 | 175 | 181 |
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. |