Number of days available for climatic review
| Parameter | Jan | Feb | Mär | Apr | Mai | Jun |
| Tmax | 2091 | 1889 | 2100 | 2031 | 2081 | 2023 |
| Tmin | 2095 | 1891 | 2098 | 2032 | 2083 | 2029 |
| Sonnenscheindauer | 0 | 0 | 0 | 0 | 0 | 0 |
| Niederschlag | 186 | 171 | 187 | 181 | 186 | 180 |
| Feuchte/Sicht | 181 | 163 | 182 | 174 | 176 | 170 |
| Parameter | Jul | Aug | Sep | Okt | Nov | Dez |
| Tmax | 2090 | 2096 | 2049 | 2122 | 2065 | 2127 |
| Tmin | 2100 | 2094 | 2061 | 2122 | 2069 | 2132 |
| Sonnenscheindauer | 0 | 0 | 0 | 0 | 0 | 0 |
| Niederschlag | 186 | 190 | 210 | 215 | 210 | 217 |
| Feuchte/Sicht | 173 | 175 | 195 | 200 | 201 | 212 |
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. |
Ashland