Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 1048 | 987 | 1093 | 1036 | 1059 | 1023 |
Tmin | 1079 | 990 | 1103 | 1043 | 1072 | 1032 |
Duration of sunshine | 272 | 209 | 208 | 241 | 243 | 256 |
Precipitation | 192 | 176 | 191 | 185 | 190 | 180 |
Humidity/Visibility | 153 | 147 | 166 | 164 | 167 | 150 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 1064 | 1058 | 1036 | 1041 | 989 | 1023 |
Tmin | 1073 | 1074 | 1051 | 1047 | 987 | 1030 |
Duration of sunshine | 209 | 214 | 187 | 237 | 220 | 279 |
Precipitation | 185 | 187 | 216 | 207 | 218 | 210 |
Humidity/Visibility | 160 | 161 | 185 | 173 | 179 | 185 |
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. |