Mexico’s lowest recorded temperature occurred on December 27, 1997. The temperature plummeted to a frigid -25 degrees Celsius. This record low was documented nationally across Mexican territory. The information pertains to historical climate data, not current weather conditions. While the original source referenced a specific date – June 12th – regarding climate in Ecatepec, the provided text focuses solely on the all-time national low. No information regarding rainfall or current forecasts was included in the source material. This historical data provides context for understanding Mexico’s climate extremes.