Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 1068 | 977 | 1072 | 1041 | 1073 | 1028 |
Tmin | 1069 | 974 | 1078 | 1041 | 1073 | 1031 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 188 | 170 | 186 | 186 | 186 | 180 |
Humidity/Visibility | 179 | 163 | 179 | 172 | 182 | 177 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 1061 | 1074 | 1062 | 1093 | 1071 | 1105 |
Tmin | 1060 | 1077 | 1051 | 1089 | 1073 | 1106 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 186 | 189 | 211 | 214 | 210 | 216 |
Humidity/Visibility | 181 | 176 | 194 | 197 | 202 | 207 |
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. |