Number of days available for climatic review
| Parameter | Jan | Feb | Mar | Apr | May | Jun |
| Tmax | 1126 | 999 | 1100 | 1084 | 1107 | 1063 |
| Tmin | 1101 | 973 | 1069 | 1043 | 1077 | 1044 |
| Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
| Precipitation | 240 | 214 | 253 | 246 | 266 | 275 |
| Humidity/Visibility | 122 | 111 | 112 | 103 | 108 | 106 |
| Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
| Tmax | 1106 | 1121 | 1105 | 1126 | 1048 | 1106 |
| Tmin | 1073 | 1070 | 1074 | 1104 | 1048 | 1103 |
| Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
| Precipitation | 270 | 260 | 300 | 288 | 274 | 276 |
| Humidity/Visibility | 104 | 104 | 131 | 120 | 110 | 121 |
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. |
Anta