La Rioja, Argentina experiences a mild climate with distinct seasonal variations. Winter months (June to August) are cool, with temperatures ranging from -3°C to 28°C, and averaging around 11-12°C. Spring brings mild temperatures, gradually warming up from March to May, with averages between 15-27°C. Summer is hot, with temperatures soaring between 37-41°C, peaking in December at an average of 28°C. Autumn months (September to November) see a gentle decrease in temperature, returning to the cooler ranges of winter by December.