Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 2152 | 1943 | 2154 | 2086 | 2139 | 2081 |
Tmin | 2159 | 1944 | 2155 | 2084 | 2145 | 2085 |
Duration of sunshine | 124 | 113 | 124 | 120 | 155 | 180 |
Precipitation | 186 | 169 | 188 | 181 | 186 | 180 |
Humidity/Visibility | 182 | 164 | 180 | 173 | 177 | 173 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 2149 | 2154 | 2115 | 2179 | 2116 | 2189 |
Tmin | 2161 | 2157 | 2119 | 2182 | 2120 | 2190 |
Duration of sunshine | 186 | 186 | 180 | 155 | 90 | 124 |
Precipitation | 186 | 190 | 210 | 215 | 210 | 217 |
Humidity/Visibility | 174 | 178 | 197 | 203 | 200 | 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. |