Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 216 | 196 | 216 | 210 | 217 | 210 |
Tmin | 217 | 194 | 217 | 210 | 217 | 209 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 191 | 171 | 188 | 180 | 187 | 181 |
Humidity/Visibility | 146 | 131 | 146 | 144 | 145 | 141 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 217 | 216 | 224 | 247 | 240 | 248 |
Tmin | 216 | 217 | 223 | 246 | 240 | 248 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 193 | 194 | 201 | 230 | 223 | 217 |
Humidity/Visibility | 146 | 145 | 183 | 199 | 168 | 178 |
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. |