Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 1144 | 1060 | 1175 | 1137 | 1153 | 1130 |
Tmin | 1149 | 1066 | 1175 | 1138 | 1156 | 1131 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 186 | 171 | 188 | 181 | 186 | 180 |
Humidity/Visibility | 183 | 165 | 184 | 178 | 184 | 178 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 1162 | 1168 | 1156 | 1201 | 1156 | 1208 |
Tmin | 1166 | 1173 | 1153 | 1202 | 1164 | 1206 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 186 | 190 | 210 | 215 | 209 | 217 |
Humidity/Visibility | 182 | 185 | 206 | 209 | 199 | 211 |
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. |