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Table 3 Expressive statistics for observed wind speed data at Maychew

From: Statistical scrutiny of Weibull parameters for wind energy potential appraisal in the area of northern Ethiopia

Months Data observations Wind speed range (m/s) Mean (m/s) Standard deviation (m/s) Skewness Kurtosis Power Density (W/m2) Q 95
Jan 248 1.110 1.619 0.249 0.769 1.401 2.597 0.086
Feb 224 0.580 1.649 0.174 −0.088 −1.087 2.744 0.091
Mar 248 0.670 1.755 0.191 −0.701 −0.366 3.309 0.086
Apr 240 0.720 1.567 0.212 0.147 −1.196 2.356 0.088
May 248 1.030 1.906 0.225 −0.120 0.990 4.244 0.086
June 240 2.390 2.339 0.648 0.935 −0.062 7.840 0.088
July 248 4.960 4.110 1.443 0.062 −0.812 42.516 0.086
Aug 248 4.240 2.919 0.992 0.861 1.148 15.230 0.086
Sep 240 0.890 1.552 0.205 1.279 1.767 2.288 0.088
Oct 248 0.610 1.588 0.165 −0.151 −1.014 2.451 0.086
Nov 240 0.820 1.545 0.157 1.488 4.554 2.257 0.088
Dec 248 0.560 1.537 0.128 0.436 0.532 2.225 0.086
Feb–Apr 712 0.657 1.657 0.192 −0.214 −0.883 2.785 0.051
May–July 736 2.793 2.785 0.772 0.292 0.039 13.233 0.050
Aug–Oct 736 1.913 2.019 0.454 0.663 0.633 5.044 0.050
Nov–Jan 736 1.939 1.567 0.178 0.898 2.162 2.356 0.050
Annual 5840 5.450 2.007 0.399 0.410 0.488 90.058 0.087