Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 214 | 196 | 213 | 237 | 242 | 238 |
Tmin | 215 | 197 | 215 | 238 | 248 | 240 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 93 | 87 | 95 | 123 | 127 | 121 |
Humidity/Visibility | 44 | 42 | 45 | 64 | 66 | 65 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 238 | 244 | 236 | 241 | 227 | 239 |
Tmin | 242 | 248 | 236 | 242 | 229 | 245 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 128 | 128 | 124 | 122 | 125 | 128 |
Humidity/Visibility | 64 | 67 | 64 | 63 | 60 | 66 |
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. |