Max T 1997 2000 2008 Obs 4 km 12  km 48 km Obs 4 km 12  km 48 km Obs 4 km 12  km 48 km AVE 45.2 43.8 42.7 30.39 46.8 44.5 42.5 30.4 45.7 43.7 42.7 31.53 STDEV 1.97 1.84 2.37 2.58 2.23 1.65 2.45 2.68 2.46 1.84 2.37 2.58 BAIS   -1.42 -2.50 -14.85   -2.24 -4.21 -16.32   -2.00 -2.97 -14.20 MAE   1.42 2.93 14.85   2.24 4.33 16.32   2.00 3.42 14.20 RMSE   1.65 3.71 15.09   2.45 4.85 16.69   2.01 4.23 14.61 CORR   0.24 0.20 0.34   0.43 0.47 -0.01   0.29 0.28 -0.09

Table 2: Daily maximum temperature simulation by NCEP for 12 Km domain and 4 Km domain at (29N, 48E) compare with Kuwait International airport (KIA) observations at (29N, 48E) for 3 years 1997, 2000, 2008. Calculating the Averages, Stander deviation, Bais, mean absolute error, root mean square error, and correlation.