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 1981 to 2010 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, 1981 to 2010
High °F Low °F   High °C Low °C
36 21 January 2 -6
39 23 February 4 -5
49 30 March 10 -1
62 40 April 17 5
71 49 May 22 10
79 58 June 26 15
83 63 July 28 17
81 62 August 27 16
74 54 September 24 12
63 43 October 17 6
51 35 November 11 2
39 25 December 4 -4
61 42 Year 16 6

Days of Hot Weather in Pittsburgh

The temperature at Pittsburgh climbs into the 90s Fahrenheit for seven days a year on average, scattered throughout summer. About once a decade, the thermometer here reaches 100 °F (38 °C). A day of 100-degree weather usually shows up in July.

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 0 0 0
April 7 2 0
May 16 6 0
June 27 14 1
July 31 21 3
August 30 19 3
September 22 7 0
October 8 1 0
November 1 0 0
December 0 0 0
Year 145 70 7

How Often Pittsburgh Has Cold Temperatures

The coldest nights of winter at Pittsburgh drop down to 0 °F (-18 °C) or below. But the city averages only two nights a year when its 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 3 10 23
March 1 5 18
April 0 0 6
May 0 0 0
June 0 0 0
July 0 0 0
August 0 0 0
September 0 0 0
October 0 0 3
November 0 1 12
December 3 9 24
Year 13 39 112
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. 1981-2010 U.S. Climate Normals. (Data Access. FTP.)

Pennsylvania Temperatures
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