Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 1220 | 1114 | 1233 | 1210 | 1253 | 1214 |
Tmin | 1205 | 1096 | 1212 | 1197 | 1236 | 1191 |
Duration of sunshine | 298 | 272 | 299 | 302 | 209 | 250 |
Precipitation | 671 | 618 | 685 | 711 | 736 | 714 |
Humidity/Visibility | 112 | 96 | 105 | 123 | 124 | 120 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 1250 | 1249 | 1191 | 1214 | 1214 | 1250 |
Tmin | 1233 | 1240 | 1181 | 1213 | 1195 | 1245 |
Duration of sunshine | 260 | 244 | 367 | 331 | 307 | 296 |
Precipitation | 736 | 735 | 708 | 727 | 696 | 179 |
Humidity/Visibility | 122 | 124 | 111 | 104 | 123 | 134 |
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. |