Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 183 | 136 | 149 | 145 | 155 | 178 |
Tmin | 185 | 137 | 152 | 147 | 155 | 176 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 188 | 144 | 155 | 151 | 155 | 179 |
Humidity/Visibility | 183 | 138 | 152 | 147 | 153 | 176 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 178 | 183 | 181 | 208 | 201 | 213 |
Tmin | 182 | 186 | 178 | 207 | 205 | 214 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 190 | 190 | 182 | 218 | 210 | 219 |
Humidity/Visibility | 181 | 183 | 179 | 209 | 205 | 214 |
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. |