Estado del clima en Jalisco: temporada de lluvias y comportamiento extremo de la temperatura en 2024

TL;DR

This study analyzes 2024 climate anomalies in Jalisco, Mexico, revealing a late rainy season, record warmth, and climate change impacts, emphasizing the need for improved monitoring and adaptation strategies.

Contribution

It provides a detailed analysis of 2024 climate anomalies in Jalisco using reanalysis data and observations, highlighting the record warmth and its links to climate change and El Nino.

Findings

2024 was the warmest year on record in Jalisco.

The rainy season started late and ended early with regional precipitation anomalies.

Significant temperature anomalies of +2.3°C were observed from May to October.

Abstract

This article analyzes the characteristics of the rainy season and extreme temperatures recorded in the state of Jalisco, Mexico, during 2024. Using ERA5 and CHIRPS reanalysis data and observations from thirteen meteorological stations, patterns of precipitation and temperature anomalies were identified. The results show a late start and early end of the rainy season, with positive anomalies in the central and southern regions, and significant deficits in the coastal strip. Furthermore, 2024 stood out as the warmest year on record, with an average anomaly of 2.3 C in May to October period, surpassing the record set in 2023. This warming is likely attributed to the combination of anthropogenic climate change and an El Nino event, altering local atmospheric patterns and affecting rainfall distribution. The findings highlight Jalisco climate vulnerability, especially in the agricultural sector, which depends on stable weather patterns. This study underscores the need to strengthen monitoring networks, implement predictive models, and design adaptation strategies to mitigate impacts in key sectors such as agriculture and water resources.