Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 1141 | 1065 | 1184 | 1139 | 1166 | 1142 |
Tmin | 1155 | 1081 | 1197 | 1145 | 1176 | 1156 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 155 | 137 | 152 | 148 | 152 | 146 |
Humidity/Visibility | 143 | 128 | 145 | 136 | 145 | 140 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 1183 | 1189 | 1127 | 1170 | 1134 | 1167 |
Tmin | 1190 | 1190 | 1136 | 1182 | 1130 | 1172 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 153 | 187 | 178 | 169 | 148 | 157 |
Humidity/Visibility | 144 | 162 | 168 | 159 | 138 | 148 |
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. |