Number of days available for climatic review
| Parameter | Jan | Feb | Mar | Apr | May | Jun |
| Tmax | 783 | 699 | 786 | 763 | 794 | 760 |
| Tmin | 778 | 700 | 779 | 763 | 804 | 768 |
| Duration of sunshine | 295 | 264 | 297 | 327 | 405 | 299 |
| Precipitation | 653 | 600 | 652 | 665 | 696 | 680 |
| Humidity/Visibility | 97 | 88 | 103 | 105 | 115 | 105 |
| Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
| Tmax | 800 | 793 | 782 | 783 | 750 | 780 |
| Tmin | 799 | 788 | 774 | 785 | 742 | 778 |
| Duration of sunshine | 322 | 348 | 372 | 339 | 284 | 368 |
| Precipitation | 691 | 692 | 692 | 693 | 654 | 140 |
| Humidity/Visibility | 116 | 108 | 120 | 105 | 81 | 95 |
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. |
Bobo-Dioulasso