Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 1635 | 1472 | 1635 | 1582 | 1626 | 1584 |
Tmin | 1638 | 1477 | 1635 | 1580 | 1625 | 1584 |
Duration of sunshine | 93 | 57 | 62 | 60 | 93 | 150 |
Precipitation | 155 | 141 | 155 | 151 | 155 | 150 |
Humidity/Visibility | 153 | 138 | 153 | 146 | 151 | 147 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 1630 | 1633 | 1583 | 1634 | 1582 | 1635 |
Tmin | 1632 | 1626 | 1586 | 1635 | 1585 | 1635 |
Duration of sunshine | 155 | 124 | 120 | 124 | 90 | 93 |
Precipitation | 156 | 157 | 150 | 153 | 150 | 155 |
Humidity/Visibility | 150 | 150 | 145 | 147 | 146 | 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. |