Number of days available for climatic review
| Parámetro | ene | feb | mar | abr | may | jun |
| Tmáx | 185 | 180 | 204 | 183 | 201 | 208 |
| Tmín | 193 | 186 | 216 | 194 | 211 | 209 |
| Duración del tiempo soleado | 162 | 150 | 212 | 96 | 105 | 206 |
| Precipitación | 114 | 121 | 145 | 163 | 159 | 156 |
| Humedad/Visibilidad | 63 | 62 | 71 | 57 | 62 | 70 |
| Parámetro | jul | ago | sep | oct | nov | dic |
| Tmáx | 208 | 209 | 211 | 212 | 192 | 206 |
| Tmín | 221 | 204 | 214 | 227 | 194 | 229 |
| Duración del tiempo soleado | 123 | 171 | 177 | 130 | 100 | 191 |
| Precipitación | 179 | 172 | 161 | 154 | 147 | 158 |
| Humedad/Visibilidad | 78 | 70 | 81 | 83 | 63 | 84 |
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. |
Brazzaville