Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 1212 | 1109 | 1233 | 1198 | 1235 | 1193 |
Tmin | 1218 | 1116 | 1234 | 1194 | 1238 | 1190 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 805 | 729 | 807 | 781 | 806 | 780 |
Humidity/Visibility | 175 | 160 | 182 | 178 | 184 | 179 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 1232 | 1237 | 1222 | 1259 | 1217 | 1257 |
Tmin | 1230 | 1238 | 1220 | 1262 | 1224 | 1250 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 806 | 810 | 812 | 835 | 810 | 213 |
Humidity/Visibility | 184 | 185 | 205 | 210 | 201 | 204 |
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. |