Number of days available for climatic review
| Parameter | Jan | Feb | Mar | Apr | May | Jun |
| Tmax | 512 | 448 | 510 | 503 | 515 | 501 |
| Tmin | 511 | 457 | 513 | 502 | 520 | 497 |
| Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
| Precipitation | 184 | 172 | 185 | 181 | 186 | 179 |
| Humidity/Visibility | 172 | 146 | 176 | 176 | 177 | 173 |
| Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
| Tmax | 524 | 507 | 529 | 545 | 522 | 532 |
| Tmin | 526 | 519 | 532 | 549 | 529 | 528 |
| Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
| Precipitation | 186 | 189 | 212 | 215 | 210 | 213 |
| Humidity/Visibility | 182 | 174 | 199 | 208 | 197 | 198 |
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. |
6th of October