Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 2091 | 1895 | 2090 | 2030 | 2083 | 2023 |
Tmin | 2106 | 1899 | 2099 | 2027 | 2079 | 2029 |
Duration of sunshine | 124 | 113 | 124 | 120 | 155 | 150 |
Precipitation | 186 | 169 | 190 | 181 | 187 | 180 |
Humidity/Visibility | 180 | 161 | 175 | 167 | 171 | 168 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 2087 | 2098 | 2057 | 2115 | 2052 | 2122 |
Tmin | 2102 | 2093 | 2061 | 2131 | 2060 | 2122 |
Duration of sunshine | 155 | 155 | 150 | 155 | 90 | 124 |
Precipitation | 187 | 193 | 212 | 216 | 212 | 225 |
Humidity/Visibility | 169 | 172 | 189 | 198 | 204 | 213 |
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. |