Pittsburgh weather by month

Pittsburgh, Pennsylvania, is known for its distinct four seasons, offering a beautiful but sometimes unpredictable climate. From snowy winters to warm, humid summers, understanding the weather patterns throughout the year is key to planning your visit or simply preparing for what’s ahead. This guide provides a detailed look at Pittsburgh’s weather by month, helping you make the most of everything the Steel City has to offer.

Overview of Pittsburgh’s Climate

Pittsburgh experiences a humid subtropical climate. This means warm, humid summers and cool to cold winters. The city sits in a valley, which can trap pollution and contribute to temperature inversions, especially during the winter months. Precipitation is fairly consistent throughout the year, with no single month being particularly dry. The Allegheny Mountains influence the weather, creating localized variations.

Spring in Pittsburgh (March – May)

Spring is a welcome change after a long winter. Temperatures gradually rise, and the city bursts into bloom. March can still be chilly, with lingering snow possible, but by May, comfortable temperatures are the norm. Expect some rainy days as the region transitions from winter to summer.

March: Average high of 50°F (10°C), average low of 32°F (0°C). Expect occasional snow or sleet.

April: Average high of 61°F (16°C), average low of 42°F (6°C). Showers are common.

May: Average high of 71°F (22°C), average low of 52°F (11°C). Pleasant and increasingly warm.

Summer in Pittsburgh (June – August)

Pittsburgh summers are warm and humid. July is typically the hottest month, with temperatures often reaching the 80s°F (27-32°C). Thunderstorms are frequent, providing relief from the heat but sometimes causing localized flooding. This is a great time to enjoy outdoor activities, festivals, and the city’s many parks.

June: Average high of 78°F (26°C), average low of 62°F (17°C). Warm and humid.

July: Average high of 83°F (28°C), average low of 67°F (19°C). Hottest month of the year.

August: Average high of 81°F (27°C), average low of 65°F (18°C). Still warm and humid, with decreasing humidity towards the end of the month.

Autumn in Pittsburgh (September – November)

Fall is arguably the most beautiful time of year in Pittsburgh. The leaves change color, creating stunning scenery, especially in the surrounding hills. Temperatures are mild and comfortable, making it ideal for hiking, biking, and exploring.

September: Average high of 74°F (23°C), average low of 58°F (14°C). Pleasant and mild.

October: Average high of 63°F (17°C), average low of 47°F (8°C). Crisp air and vibrant fall foliage.

November: Average high of 51°F (11°C), average low of 36°F (2°C). Cooler temperatures and increasing chances of rain or snow.

Winter in Pittsburgh (December – February)

Pittsburgh winters are cold and snowy. Average temperatures hover around freezing, and snowfall is common. While major snowstorms can occur, the city is generally well-equipped to handle winter weather. Expect gray skies and shorter days.

December: Average high of 40°F (4°C), average low of 27°F (-3°C). Cold and snowy.

January: Average high of 34°F (1°C), average low of 21°F (-6°C). Coldest month of the year.

February: Average high of 38°F (3°C), average low of 24°F (-4°C). Gradually warming temperatures, but still cold and snowy.

Pittsburgh Weather by Month – Quick Reference Table

Month	Avg. High (°F)	Avg. Low (°F)	Precipitation (inches)
January	34	21	3.1
February	38	24	2.8
March	50	32	3.4
April	61	42	3.5
May	71	52	3.8
June	78	62	4.0
July	83	67	4.2
August	81	65	3.8
September	74	58	3.4
October	63	47	3.0
November	51	36	3.2
December	40	27	3.3

Frequently Asked Questions (FAQ)

Q: What is the snowiest month in Pittsburgh?
A: January is typically the snowiest month, averaging around 6 inches of snowfall.

Q: What is the hottest month in Pittsburgh?
A: July is the hottest month, with an average high of 83°F (28°C).

Q: Is Pittsburgh humid?
A: Yes, Pittsburgh experiences high humidity levels, especially during the summer months.

Q: What should I pack if I’m visiting Pittsburgh in the fall?
A: Layers are key! Pack a light jacket, sweaters, long-sleeved shirts, and comfortable walking shoes.

Q: Does Pittsburgh get a lot of sunshine?
A: Pittsburgh is known for having relatively cloudy weather, especially during the winter months.