Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 1323 | 1203 | 1294 | 1259 | 1296 | 1253 |
Tmin | 1316 | 1200 | 1293 | 1253 | 1295 | 1251 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 126 | 115 | 130 | 123 | 127 | 123 |
Humidity/Visibility | 89 | 83 | 121 | 110 | 119 | 113 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 1268 | 1269 | 1227 | 1299 | 1259 | 1304 |
Tmin | 1271 | 1271 | 1228 | 1294 | 1259 | 1302 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 131 | 157 | 154 | 160 | 153 | 156 |
Humidity/Visibility | 89 | 119 | 116 | 118 | 104 | 121 |
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. |