Grapevine experiences mild winters with temperatures rarely dipping below freezing, averaging around 8°C in January and 4°C in February. Spring brings a gradual warming trend, with March and April temperatures rising to averages of 15°C and 17°C respectively. Summer is warm but not sweltering, with July and August temperatures peaking at averages of 28°C, while September experiences a slight cooldown before the onset of autumn. Autumn is characterized by moderate temperatures, with October averaging around 21°C and November dropping back to 13°C. Winters are generally mild, with December temperatures averaging 15°C, similar to those in March.