Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 1113 | 1056 | 1170 | 1130 | 1147 | 1128 |
Tmin | 1108 | 1056 | 1170 | 1134 | 1143 | 1127 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 717 | 647 | 717 | 691 | 714 | 692 |
Humidity/Visibility | 180 | 163 | 182 | 174 | 179 | 175 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 1165 | 1168 | 1134 | 1196 | 1153 | 1199 |
Tmin | 1168 | 1172 | 1133 | 1194 | 1157 | 1198 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 710 | 719 | 720 | 741 | 722 | 743 |
Humidity/Visibility | 179 | 182 | 202 | 205 | 200 | 210 |
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. |