Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 1608 | 1454 | 1609 | 1567 | 1636 | 1581 |
Tmin | 1551 | 1401 | 1552 | 1504 | 1553 | 1502 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 68 | 58 | 68 | 83 | 103 | 93 |
Humidity/Visibility | 59 | 53 | 58 | 67 | 84 | 85 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 1637 | 1636 | 1581 | 1633 | 1579 | 1640 |
Tmin | 1559 | 1552 | 1505 | 1551 | 1500 | 1551 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 100 | 101 | 95 | 100 | 95 | 106 |
Humidity/Visibility | 84 | 86 | 80 | 79 | 81 | 87 |
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. |