Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 2097 | 1892 | 2093 | 2035 | 2083 | 2024 |
Tmin | 2100 | 1904 | 2105 | 2035 | 2085 | 2030 |
Duration of sunshine | 124 | 113 | 124 | 120 | 155 | 180 |
Precipitation | 186 | 169 | 187 | 181 | 186 | 180 |
Humidity/Visibility | 184 | 166 | 184 | 177 | 182 | 177 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 2088 | 2096 | 2060 | 2124 | 2057 | 2130 |
Tmin | 2102 | 2097 | 2062 | 2132 | 2063 | 2136 |
Duration of sunshine | 186 | 186 | 180 | 186 | 90 | 124 |
Precipitation | 188 | 190 | 210 | 215 | 210 | 217 |
Humidity/Visibility | 182 | 183 | 204 | 209 | 202 | 215 |
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. |