The year 2025 ended with a climate balance Strong numbers and contrasting readings for Argentine agriculture. According to the Rosario Stock Exchange (BCR)through the Strategic Guide for Agriculture (GEA), In the core region it rained 20% more than in 2024with an annual average of 1222 millimetersThat means, 260 millimeters more than last year. The data not only reflects a high amount of precipitation, but also a distribution that, with nuances, was crucial for the development of crops over the course of the year. That was the highlight of the year. Beyond this report, it is recalled that the year 2025 was marked by floods and flooding in the central-west of Buenos Aires due to heavy rains.
“The year 2025 says goodbye with an extremely positive rainfall balance. Both winter and spring saw rainfall above the seasonal values considered normal. The rains that developed during the semester were characterized by their frequency and frequency,” said the advisor. Alfred Elorriagaquoted by the entity.
According to the report, the historical normal values for the core region – viewed over the last 30 years – range between 800 and 1200 millimeterswith a clearly defined gradient from west to east. In 2025, this spatial pattern was maintained, but with a peculiarity: The annual average even exceeded the upper limit of the historical rangewhich is explained not only by the cumulative sum, but also by the magnitude of the phenomenon. He 90% of the weather stations in the BCR-GEA network recorded rainfall higher than in 2024, representing an average annual surplus of 21%.
“Precipitation behavior was so efficient throughout 2025 that only January, June and December were below historical averages,” the company emphasized. In the remaining months, he explained, the accumulated numbers not only exceeded the statistical records, but in some cases even doubled or tripled them. The BCR gave concrete examples: In August, Pergamino collected 180 mmwhile in November, Bell Ville recorded 172 mmin a context characterized by cooling of the equatorial Pacific consistent with La Niña.
One of the most striking points of the report is the stark contrast to the beginning of the year. In it southeast of the core regionCities like Rojas, Junín, Pergamino and Baradero showed very significant annual increases. Rojas accumulated 729 mm more than in 2024Junin 722mmparchment 633mm and Baradero 565mm. The report described this scenario as “A real 180 degree turn” for a region that began 2025 with a severe drought, with severe production losses, particularly in early corn.
Only three stations of the 36 which make up the network were slightly below the previous year’s records: Noetinger, Idiazábal and Hernando, in the southeast of Córdoba, with deficits in 4%, 1% and 8%respectively.
After five consecutive months of above average rainfall December broke the trend. The last month of the year closed with a cumulative average of 80 mm in the core areabelow 110mm This marks the historical value. Irregularity was a key feature: large areas, however, were left with poor records – like Lincoln 47mmBaradero with 51mm and parchment with 54mm—, others managed to exceed the average, such as Molle well (161 mm), Hernando (125mm), Laboulaye and Rosario (122mm), Classon (118mm) And Irigoyen (117 mm).
The report highlighted that this erratic behavior is typical of the summer months, which are dominated by convective rainfall high spatial variability, high intensity, short duration and strong localization.
While the core region ended December with deficits, the north of the country showed the other side of the climate map. In it Northern Argentina and especially in the NEARainfall in December Normal values doubled and even tripledwhich leads to waterlogging and flooding in large areas Santiago del Estero, Chaco and Corrientes.
The most extreme case occurred in the city currentswhere they accumulated 530 mm per month, three and a half times above the historical averagea record only comparable to that of 1996. Were also highlighted Ituzaingó (457 mm), Resistance (406mm), Las Breñas (291 mm), Obera (342 mm), Federal (293 mm) And The Lomitas (200 mm)including in other parts of the country.
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