Research Article
Statistical Analysis of Rainfall Trend for Volta Region in Ghana
Table 7
Statistical summary of monthly rainfall data of coastal zone.
| Parameters | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Mean (mm) | 3.3 | 23.2 | 61.0 | 107.3 | 150.4 | 206.2 | 64.9 | 19.8 | 56.0 | 78.7 | 29.9 | 11.2 | Median (mm) | 0.0 | 11.2 | 49.0 | 86.7 | 145.7 | 174.2 | 44.2 | 10.8 | 33.9 | 65.2 | 22.0 | 2.5 |
S.D. (mm) | 6.1 | 30.8 | 45.8 | 67.8 | 60.4 | 138.5 | 87.6 | 31.7 | 71.0 | 63.2 | 29.0 | 18.3 | Variance (mm) | 36.8 | 950.2 | 2098.5 | 4606.9 | 3645.8 | 19185.3 | 7675.3 | 1005.1 | 5050.3 | 3997.5 | 841.2 | 336.0 | Skewness | 2.2 | 1.4 | 0.7 | 1.2 | 0.0 | 1.2 | 3.0 | 3.2 | 2.5 | 0.6 | 0.8 | 2.6 | Kurtosis | 4.8 | 0.9 | −0.0 | 1.9 | −0.5 | 1.1 | 11.4 | 12.9 | 7.7 | −0.8 | −0.1 | 6.9 | Min (mm) | 0.0 | 0.0 | 0.0 | 18.3 | 34.5 | 47.0 | 1.2 | 0.0 | 0.0 | 0.5 | 0.0 | 0.0 | Max (mm) | 22.6 | 96.3 | 181.1 | 324.7 | 269.6 | 598.3 | 443.5 | 160.6 | 339.9 | 210.9 | 107.6 | 77.7 | Range (mm) | 22.6 | 96.3 | 181.1 | 306.4 | 235.1 | 551.3 | 442.3 | 160.6 | 339.9 | 210.4 | 107.6 | 77.7 | Sum (mm) | 102.0 | 719.5 | 1890.7 | 3325.0 | 4663.9 | 6391.7 | 2012.5 | 612.4 | 1735.9 | 2440.0 | 928.3 | 347.0 | CV | 1.8 | 1.3 | 0.7 | 0.6 | 0.4 | 0.6 | 1.3 | 1.6 | 1.2 | 0.8 | 0.9 | 1.6 |
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