Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 341 | 321 | 356 | 328 | 345 | 337 |
Tmin | 357 | 325 | 361 | 336 | 355 | 338 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 321 | 282 | 315 | 309 | 317 | 322 |
Humidity/Visibility | 61 | 63 | 69 | 57 | 63 | 63 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 371 | 338 | 323 | 331 | 319 | 328 |
Tmin | 368 | 341 | 323 | 337 | 320 | 332 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 343 | 340 | 328 | 331 | 346 | 138 |
Humidity/Visibility | 95 | 95 | 80 | 84 | 73 | 83 |
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. |