Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 1655 | 1499 | 1657 | 1605 | 1645 | 1601 |
Tmin | 1648 | 1493 | 1651 | 1601 | 1626 | 1596 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 186 | 169 | 187 | 181 | 186 | 180 |
Humidity/Visibility | 173 | 159 | 172 | 170 | 170 | 170 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 1652 | 1657 | 1620 | 1686 | 1639 | 1690 |
Tmin | 1638 | 1632 | 1612 | 1672 | 1646 | 1689 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 187 | 190 | 206 | 215 | 210 | 217 |
Humidity/Visibility | 169 | 171 | 187 | 200 | 202 | 211 |
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. |