Table 1.
Rainfall recorded in the area during the study period. Square-root transformation formula X1= √X+0.5, where X1 is the transformed value and X is the actual value
| Period | First year | Second year | ||
|---|---|---|---|---|
| Actual values | Transformed values | Actual values | Transformed values | |
| Dry season | ||||
| October | 153.7 | 12.42 | 308.8 | 17.59 |
| November | 8.7 | 3.03 | 0.0 | 0.71 |
| December | 25.2 | 5.07 | 6.8 | 2.70 |
| January | 4.8 | 2.30 | 9.7 | 3.19 |
| February | 5.5 | 2.45 | 28.6 | 5.39 |
| March | 38.4 | 6.24 | 52.2 | 7.26 |
| Mean ± SD | 5.25 ± 3.84 | 6.14 ± 6.05 | ||
| Wet season | ||||
| April | 223.4 | 14.96 | 408.8 | 20.23 |
| May | 121.7 | 11.05 | 232.3 | 15.26 |
| June | 148.4 | 12.20 | 305.2 | 17.48 |
| July | 110.6 | 10.54 | 332.3 | 18.24 |
| August | 51.4 | 7.20 | 225.3 | 15.03 |
| September | 266.5 | 16.34 | 511.7 | 22.63 |
| Mean ± SD | 12.05 ± 3.28 | 18.15 ± 2.93 | ||
| Annual mean ± SD | 8.65 ± 4.92 | 12.14 ± 7.74 | ||
The difference between first and second year mean rainfall values was significant in the wet (P < 0.001) but not in the dry (P = 0.494) season. Annual mean rainfall value was significantly (P = 0.005) higher in the second year compared to the first year