Pittsburgh, PA weather by month
Northeast · Station: Pittsburgh International Airport, PA · NOAA 1991–2020 Climate Normals
The best time to visit Pittsburgh, PA is April, September–October, when average daytime highs are comfortable and rainfall sits at or below the city's monthly average. Pittsburgh is hottest in July (avg high 83°F) and coolest in January (avg high 36°F). The wettest month is July (4.3 in) and the driest is February (2.6 in). Overall the annual mean temperature is about 51.8°F with 39.6 in of precipitation a year and 44.1 in of snow.
Source: NOAA NCEI U.S. Climate Normals 1991–2020. Data as of June 2026.
Monthly weather averages for Pittsburgh
| Month | Avg high (°F) | Avg low (°F) | Avg precip (in) | Avg snow (in) |
|---|---|---|---|---|
| January | 36 | 21 | 3 | 13.3 |
| February | 40 | 23 | 2.6 | 11.7 |
| March | 49 | 30 | 3.2 | 7.6 |
| April | 62 | 41 | 3.3 | 1 |
| May | 72 | 51 | 3.8 | 0 |
| June | 79 | 59 | 4.1 | 0 |
| July | 83 | 63 | 4.3 | 0 |
| August | 82 | 62 | 3.5 | 0 |
| September | 75 | 55 | 3.3 | 0 |
| October | 63 | 44 | 2.8 | 0.4 |
| November | 51 | 34 | 2.9 | 2.4 |
| December | 41 | 27 | 2.8 | 7.7 |
Source: NOAA NCEI U.S. Climate Normals 1991–2020. Data as of June 2026.
Best time to visit Pittsburgh
Based on the normals above, the most pleasant window is April, September–October. In those months daytime highs are in the mild-to-warm range and precipitation is no higher than the city's typical month, so you avoid both the peak warm of July (when highs reach about 83°F — t-shirt weather; sunscreen advised) and the cool, darker conditions around January (highs near 36°F). Try to avoid July if rain would spoil your plans — it is the wettest month at 4.3 in. Use the packing & comfort tool to check any specific month.
How Pittsburgh compares
Pittsburgh's 39.6 in of annual precipitation and 51.8°F mean temperature put it in context with other US cities. See where it ranks for warmest in January, rainiest overall and driest overall, or browse the full list of cities.
Frequently asked questions
What is the best time to visit Pittsburgh?
The most comfortable time to visit Pittsburgh, PA is April, September–October, when average daytime highs are mild and rainfall is at or below the city's average. Pittsburgh is hottest in July (avg high 83°F) and coolest in January (avg high 36°F), per NOAA 1991–2020 Climate Normals.
What is the average temperature in Pittsburgh?
Pittsburgh's annual mean temperature is about 51.8°F. The warmest month is July (average high 83°F, low 63°F) and the coolest is January (average high 36°F, low 21°F).
How much rain does Pittsburgh get?
Pittsburgh receives about 39.6 inches of precipitation a year. The wettest month is July (4.3 in) and the driest is February (2.6 in).
Does it snow in Pittsburgh?
Yes. Pittsburgh averages about 44.1 inches of snow a year. Snow normally falls between late autumn and early spring; summer months see none.
Source
Monthly averages from the NOAA NCEI U.S. Climate Normals 1991–2020, station Pittsburgh International Airport, PA (reference values verified against the published normals). Climate normals describe a 30-year average, not a forecast; any individual year can differ. See our methodology for how "best time to visit" is derived.
Last updated: 2026-06-18