Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 1260 | 1147 | 1270 | 1227 | 1269 | 1229 |
Tmin | 1263 | 1149 | 1269 | 1229 | 1271 | 1229 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 186 | 169 | 189 | 183 | 188 | 180 |
Humidity/Visibility | 182 | 164 | 183 | 177 | 183 | 178 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 1268 | 1268 | 1257 | 1292 | 1256 | 1299 |
Tmin | 1269 | 1271 | 1254 | 1293 | 1258 | 1300 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 186 | 190 | 211 | 215 | 212 | 221 |
Humidity/Visibility | 182 | 183 | 204 | 207 | 206 | 212 |
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. |