## 3 Results  
### Meteorological Data Analysis  
The meteorological data collected during the 2021 and 2022 growing seasons provided essential insights into the environmental conditions influencing the avocado orchard's water dynamics. This analysis focused on key climatic variables recorded at an agro-meteorological station located near the study area, including temperature, precipitation, and solar radiation (Figure 4). The analysis of daily temperature, precipitation, and solar radiation data recorded over the two years revealed significant seasonal trends and fluctuations that directly impacted crop water needs and soil moisture dynamics. The temperature exhibited a clear seasonal pattern, ranging from 23 \({}^{\circ}\)C to 31 \({}^{\circ}\)C, with the warmest temperatures occurring during the dry season (November to April) and cooler temperatures recorded in the wet season (May to October). Daily temperatures typically reached around 30 \({}^{\circ}\)C during the warmest months and dropped to around 15 \({}^{\circ}\)C during the cooler periods, reflecting the region's subtropical climate. This temperature variation influenced the ETo rates, contributing to water stress during the warmer months. Precipitation was concentrated during the wet season, with the highest rainfall recorded between May and October. The total annual precipitation in 2021 was approximately 762.2 mm, while in 2022, it was slightly less at 669.03 mm. Despite heavy rain during the wet months, most of the year remained dry, presenting challenges for irrigation management during the dry season. Although significant rainfall spikes were recorded, they were infrequent, resulting in a highly variable distribution of precipitation. Solar radiation followed a consistent seasonal trend, peaking during the dry months and decreasing during the wet season. Higher solar radiation values were observed during the dry season, driven by longer daylight hours and clearer skies; this played a crucial role in photosynthesis and crop transpiration, directly influencing the orchard's water demand.  
Figure 4: Daily variations in temperature, precipitation, and solar radiation for 2021 and 2022.  
Boxplots were employed to summarize the seasonal distributions of temperature, total precipitation, and solar radiation, offering a clear overview of the variability in these meteorological variables across both years (Figure 5). For the temperature, the interquartile range remained similar in both 2021 and 2022, with median temperatures slightly above 20 \({}^{\circ}\)C; however, the data showed considerable fluctuations, reflecting daily temperature changes. Precipitation exhibited high skewness, with most daily measurements showing minimal or no rainfall, while extreme outliers represented significant rainfall events that occurred sporadically throughout the year. This variability underscores the challenges of managing irrigation during dry weather interrupted by heavy rainfall. Solar radiation followed a similar seasonal pattern in both years, with higher values in the dry season and lower values in the wet season. The interquartile range and median values were comparable across both years, demonstrating the consistency of solar radiation throughout the growing seasons.