Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 1167 | 1079 | 1186 | 1120 | 1146 | 1123 |
Tmin | 1171 | 1086 | 1191 | 1132 | 1168 | 1127 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 193 | 175 | 186 | 183 | 167 | 160 |
Humidity/Visibility | 173 | 159 | 169 | 141 | 138 | 137 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 1163 | 1149 | 1145 | 1189 | 1167 | 1210 |
Tmin | 1168 | 1165 | 1150 | 1207 | 1173 | 1220 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 157 | 161 | 191 | 211 | 214 | 226 |
Humidity/Visibility | 144 | 142 | 157 | 173 | 189 | 202 |
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. |