Table 9. Mean monthly values of ETo (mm d⁻¹) obtained by K_pan models and FAO-56 PM equation in years 1998–2019.

Month/Model	April	May	June	July	August	September	October
FAO-56 PM	3.39	4.16	4.97	5.16	4.67	3.77	2.58
S	3.17**	4.42**	5.92**	6.49**	6.07**	4.68**	3.09**
MS	2.92**	4.07	5.41**	5.90**	5.54**	4.31**	2.88**
WS	2.45**	3.41**	4.54**	4.95**	4.65	3.61**	2.41**
C	2.94**	4.09	5.45**	5.96**	5.59**	4.33**	2.88**
AP	3.06**	4.25	5.65**	6.15**	5.78**	4.51**	3.02**
O	1.55**	2.14**	2.76**	2.89**	2.78**	2.29**	1.64**
P	2.95**	4.16	5.53**	6.01**	5.70**	4.48**	3.03**
RW	3.00**	4.17	5.54**	6.02**	5.66**	4.38**	2.95**

Notes.

Mean monthly values which differed significantly from FAO-56 PM (reference method) according to t-statistic.

^*p-value < 0.05.

^**p-value < 0.01.

Significant values are indicated in bold.