Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 2086 | 1893 | 2094 | 2034 | 2092 | 2031 |
| Tmin | 2094 | 1903 | 2105 | 2034 | 2096 | 2037 |
| Διάρκεια Ηλιοφάνειας | 93 | 86 | 62 | 60 | 124 | 150 |
| Υετός | 186 | 169 | 187 | 181 | 186 | 180 |
| Υγρασία/Ορατότητα | 183 | 166 | 184 | 177 | 181 | 177 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 2098 | 2101 | 2053 | 2124 | 2064 | 2126 |
| Tmin | 2103 | 2104 | 2064 | 2130 | 2069 | 2125 |
| Διάρκεια Ηλιοφάνειας | 155 | 124 | 120 | 124 | 90 | 93 |
| Υετός | 188 | 190 | 210 | 215 | 210 | 217 |
| Υγρασία/Ορατότητα | 182 | 183 | 205 | 208 | 206 | 215 |
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. |
American Falls