This study analyses how irrigation has altered meteorological conditions and atmospheric evaporation capacity (ET pen ). The results revealed that the expansion of irrigation from 1956 to 1997 led to a greater increase in the daily relative humidity (RH) of approximately 0.73% per decade, a decrease in the ET pen of approximately 0.10 mm/day per decade, and a greater increase in daily air temperature (T 2 ) of approximately 0....