Hottest and Coldest Temperatures Ever in Philadelphia on July 12

On July 12th in Philadelphia, the temperature reached a scorching 95.0°F back in 1966, making it the hottest recorded temperature. In contrast, the coldest recorded temperature for this date was 55.0°F, which occurred in 1999. On average, the weather in Philadelphia on July 12th sees a mild temperature of 76.23°F, with the highest temperature averaging at 79.60°F and the lowest at 72.85°F. Interestingly, in 1966, amidst the heatwave, a groundbreaking news event took place as the United States launched its first successful lunar orbiter, paving the way for subsequent moon explorations.