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.
| 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 |
| 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.
| 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.
| 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.