Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 335 | 303 | 333 | 357 | 364 | 355 |
Tmin | 464 | 418 | 462 | 477 | 489 | 475 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 95 | 94 | 94 | 127 | 125 | 125 |
Humidity/Visibility | 67 | 60 | 66 | 87 | 88 | 85 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 361 | 368 | 353 | 362 | 349 | 363 |
Tmin | 489 | 496 | 478 | 491 | 470 | 492 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 131 | 128 | 121 | 122 | 126 | 125 |
Humidity/Visibility | 86 | 90 | 85 | 85 | 82 | 89 |
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. |