Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 1077 | 1006 | 1113 | 1100 | 1127 | 1105 |
Tmin | 1075 | 1005 | 1104 | 1093 | 1125 | 1103 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 623 | 563 | 624 | 628 | 654 | 639 |
Humidity/Visibility | 121 | 109 | 121 | 141 | 150 | 145 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 1141 | 1142 | 1105 | 1126 | 1102 | 1141 |
Tmin | 1136 | 1139 | 1103 | 1119 | 1103 | 1136 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 658 | 658 | 633 | 650 | 633 | 654 |
Humidity/Visibility | 150 | 148 | 147 | 146 | 145 | 152 |
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. |