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This research project analyzes the evolution of precipitation in the town of Maizales, Santa Fe, over a 26-year period. The study originates from the enhancement and systematic analysis of a historical rainfall record started by Mr. Martino in the year 2000, which was digitized and analyzed for this purpose. During the 2025 cycle, GLOBE Atmosphere Protocols were incorporated to standardize current measurements, and data from NASA Worldview were utilized for validation. The study reveals a historical average of 956.58 mm, but with a significant standard deviation that highlights the alternation between extreme dry cycles (such as the minimum of 430.5 mm in 2022) and wet cycles (maximum of 1498 mm in 2012). The analysis demonstrates that citizen science provides critical spatial resolution that complements satellite data. These results allow for a better understanding of water anomalies in a core production area for corn and soybeans, facilitating decision-making based on local climatic evidence. Keywords: Maizales (Santa Fe), Citizen Science, GLOBE Protocol, NASA Worldview, Interannual Variability.