Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 1237 | 1150 | 1268 | 1228 | 1260 | 1230 |
Tmin | 1239 | 1150 | 1270 | 1228 | 1261 | 1228 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 186 | 169 | 190 | 181 | 186 | 180 |
Humidity/Visibility | 185 | 168 | 184 | 179 | 185 | 179 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 1266 | 1270 | 1248 | 1294 | 1257 | 1302 |
Tmin | 1270 | 1272 | 1249 | 1295 | 1258 | 1300 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 185 | 190 | 214 | 215 | 210 | 217 |
Humidity/Visibility | 184 | 185 | 206 | 210 | 208 | 214 |
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. |