4 Seasons in 4 Days

Greek Valerian on a Spring day at Brush Creek, 16 April 2026 (photo from Kate St. John) 22 April 2026, Earth Day Spring, Summer, Fall, Winter. Pittsburgh had all four seasons in just four days, 17 to 20 April, 2026. The graph below shows the rising and falling temperature in pale blue. 17 April: Spring, though a bit warm 18 April: Summer with a high of 82°F 19 April: Autumn low of 39°F, high 51°F 20 April: Winter. It certainly felt like winter! Low 34°F, high 47°F with a stiff wind that dropped the windchill. Winter persisted to 21 April when the low was 29°F. Graph of Temperature, Dew point and Relative humidity for 17 April to 21 April, 2026 at Allegheny County Airport (graph from weather.gov) Every day we had to dress for a different season and quickly learned not to put away our winter clothes. Spring, 17 April: On the day it was Spring the flowers bloomed and we wore long sleeves and light jackets. Corn salad at Brush Creek, 16 April 2026 (photo by Kate St. John) Summer, 18…