Newcomers to Pittsburgh will discover that the city's climate fluctuates between humid continental and humid subtropical, with four distinct seasons. Pittsburgh winters, between December and February, are cold, with average temperatures between 21°F (-6°C) and 39°F (4°C), although the mercury often drops much lower.

In spring, things warm up quickly, while summers, between June and August, are hot and sunny with temperatures averaging between 58°F (14°C) and 82°F (28°C). Pittsburgh receives heavy rainfall, which is fairly evenly distributed throughout the year, but late spring and summer tend to be the wettest. Some snow does fall in winter.