Pittsburgh Temperatures: Averages by Month





The numbers here tell you how hot and cold the weather usually is in Pittsburgh, Pennsylvania during each month of the year.

The average high and low temperatures are listed below monthly and annually for Pittsburgh, in both degrees Fahrenheit and Celsius.

Maximums and minimums are only part of the temperature picture. To fill in the rest, there's information on how many days a month get above or below a given temperature.

To find out how often it rises over 70, 80 or 90 °F each month in Pittsburgh, scroll down farther. There are also monthly and yearly counts of days with cold weather.

The first set of high and low temperatures are averages for 2010 to 2019. Everything else here is based on 1991 to 2020 weather.

10-year temperature averages for Pittsburgh, 2010 to 2019
High °F Low °F   High °C Low °C
35 20 January 2 -7
40 23 February 4 -5
49 31 March 10 -1
64 42 April 18 5
74 53 May 23 12
80 61 June 27 16
84 65 July 29 18
82 62 August 28 17
77 57 September 25 14
64 46 October 18 8
51 33 November 10 1
42 28 December 5 -2
62 43 Year 17 6
30-year temperature averages for Pittsburgh, 1991 to 2020
High °F Low °F   High °C Low °C
36 21 January 2 -6
40 23 February 4 -5
49 30 March 10 -1
62 41 April 17 5
72 51 May 22 10
79 59 June 26 15
83 63 July 28 17
82 62 August 28 17
75 55 September 24 13
63 44 October 17 7
51 34 November 11 1
41 27 December 5 -3
61 43 Year 16 6

Days of Hot Weather in Pittsburgh

The summer temperatures at Pittsburgh climb into the 90s Fahrenheit for ten days a year on average. Temperatures above 100 °F (38 °C) are not expected here.

Days per month in Pittsburgh of at least 70, 80 or 90 °F
  70 °F
21 °C
80 °F
27 °C
90 °F
32 °C
January 0 0 0
February 0 0 0
March 3 0 0
April 9 2 0
May 19 9 0
June 28 16 2
July 31 23 4
August 30 21 3
September 23 10 1
October 9 1 0
November 1 0 0
December 0 0 0
Year 153 82 10

How Often Pittsburgh Has Cold Temperatures

The coldest nights of winter at Pittsburgh drop down to 0 °F (-18 °C) or below. The city averages two nights a year when it's that chilly.

From November to April, Pittsburgh can remain below freezing all day long. The city typically has 32 days a year when the temperature never rises above 32 °F.

Days per month on average in Pittsburgh when the minimum temperature drops to 10, 20, or 32 °F or below
  10 °F
-12 °C
20 °F
-8 °C
32 °F
0 °C
January 6 14 25
February 4 10 23
March 1 6 19
April 0 0 6
May 0 0 1
June 0 0 0
July 0 0 0
August 0 0 0
September 0 0 0
October 0 0 2
November 0 1 14
December 2 8 23
Year 12 39 114
References

Jay Lawrimore, Ron Ray, Scott Applequist, Bryant Korzeniewski, Matthew Menne. 2016. Global Summary of the Month and Year, Version 1.0. NOAA National Centers for Environmental Information.

NOAA National Centers for Environmental Information (NCEI). Climate Normals.

Pennsylvania Temperatures
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