Hottest and Coldest Temperatures Ever in Allentown on November 18

On November 18th in Allentown, the temperature ranged from a scorching 70.0°F in 1963 to a chilly 17.1°F in 1959. The average temperature for this date is typically 42.24°F, with an average high of 48.19°F and an average low of 36.28°F. In 1963, when the highest temperature on record was reached, an interesting news item was the successful launch of the Syncom 2 satellite, which became the first geosynchronous satellite, orbiting over the same point on Earth. It marked a significant milestone in telecommunications and paved the way for worldwide communication systems.