Pittsburgh, PA

Climate overview — based on NOAA 1991-2020 normals from PITTSBURGH ALLEGHENY CO AP, PA US.

Dfa Hot-summer humid continental climate 7b USDA hardiness Zone 7b

Year-round temperatures (°F)

20° 40° 60° 80° J F M A M J J A S O N D
Avg high Avg low

Climate summary

Pittsburgh has an annual average temperature of 52.4°F with about 41.3 inches of precipitation per year. The warmest month is July (average high 83.0°F), and the coldest is January (average low 22.3°F). June is typically the wettest month (4.58 in) and February the driest (2.57 in).

Pleasant months
3 / 12
avg high 65–80°F, low ≥ 50°F
Annual swing
44.1°F
warmest to coldest month
Heating need
5,169
Cooling need
618

Best time to visit Pittsburgh

Full guide →

Climate change signal

All-time records →

92 of 366 (25.1%) of Pittsburgh's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.

1930s
54
1940s
57
1950s
33
1990s
12
2000s
69
2010s
87
2020s
54

Bars: number of all-time daily heat records still standing that were set in each decade.

Monthly averages

Month Avg High Avg Low Avg Temp Precipitation Snow Rainy days
January 36.6°F 22.3°F 29.5°F 3.08 in 13
February 39.9°F 24.3°F 32.1°F 2.57 in 13
March 49.4°F 31.3°F 40.4°F 3.22 in 14
April 62.5°F 41.8°F 52.1°F 3.40 in 14
May 71.9°F 51.8°F 61.8°F 4.08 in 15
June 79.1°F 59.9°F 69.5°F 4.58 in 14
July 83.0°F 64.1°F 73.6°F 3.93 in 13
August 81.3°F 62.8°F 72.1°F 3.81 in 12
September 74.8°F 55.9°F 65.4°F 3.54 in 12
October 63.3°F 45.1°F 54.2°F 3.06 in 14
November 51.1°F 35.3°F 43.2°F 3.03 in 12
December 41.0°F 27.7°F 34.4°F 3.04 in 14

Climate twins of Pittsburgh

Why these? →

The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).

Frost dates
Last spring / first fall frost
All-time records
Hottest, coldest, wettest
Planting calendar
What to plant, and when

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