Number of days available for climatic review
parametr | sty | lut | mar | kwi | maj | cze |
Tmax | 372 | 336 | 372 | 372 | 402 | 387 |
Tmin | 371 | 336 | 370 | 375 | 403 | 389 |
słońce (godz.) | 248 | 254 | 217 | 240 | 279 | 270 |
opad | 62 | 57 | 62 | 75 | 93 | 90 |
wilgotność / widzialność | 61 | 55 | 60 | 74 | 91 | 88 |
parametr | lip | sie | wrz | paź | lis | gru |
Tmax | 401 | 401 | 388 | 398 | 387 | 400 |
Tmin | 399 | 400 | 388 | 398 | 388 | 401 |
słońce (godz.) | 279 | 248 | 240 | 279 | 240 | 248 |
opad | 97 | 94 | 90 | 90 | 90 | 94 |
wilgotność / widzialność | 90 | 90 | 88 | 87 | 88 | 91 |
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. |