Tracy, CA Weather

Tracy is marked by a semi-arid climate (Köppen BSh), with mild, moist winters and very hot and dry summers, displaying Mediterranean characteristics. December and January are the coolest months, and average around 47.1 °F (8.4 °C), and there are 19 nights with lows at or below freezing annually, with the coldest night of the year typically bottoming out below 30 °F (−1.1 °C). July is the warmest month, averaging 76.4 °F (28.3 °C); normally, there are 18 days of 100 °F (37.8 °C)+ highs and 82 days of 90 °F (32.2 °C)+ highs. Average annual precipitation is around 12.5 inches (317.7 mm), which, by definition, results in the area being classified as a semi-desert.