Best time to visit Pittsburgh
The best months to visit Pittsburgh are September, June and May, based on month-by-month temperature and rainfall data. The full year of weather, daylight, holidays, and festival timing is below.
September, June and May score best for Pittsburgh weather:
- May22° / 11°CLush and mild — Phipps' spring show and river-trail weather.
- June26° / 16°CWarm with the year's heaviest thunderstorms.
- September24° / 14°CWarm, drier, and golden — the best all-around month.
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By TripSapien Research · Updated May 20, 2026
Pittsburgh weather by month
| Month | High | Low | Rain (mm) | Rainy days | Daylight |
|---|---|---|---|---|---|
| January | 3° | -5° | 94 | 18 | 10h |
| February | 5° | -4° | 83 | 15 | 10h |
| March | 10° | 0° | 103 | 17 | 11h |
| April | 17° | 6° | 116 | 18 | 13h |
| MayBest weather | 22° | 11° | 129 | 20 | 14h |
| JuneBest weather | 26° | 16° | 131 | 19 | 15h |
| July | 28° | 18° | 114 | 20 | 15h |
| August | 28° | 18° | 97 | 18 | 14h |
| SeptemberBest weather | 24° | 14° | 101 | 15 | 13h |
| October | 18° | 8° | 97 | 15 | 12h |
| November | 11° | 2° | 85 | 14 | 10h |
| December | 5° | -2° | 88 | 16 | 10h |
Temperatures in °C. Long-term monthly averages.
Know your Pittsburgh month?
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Pittsburgh month by month
January
Pittsburgh in January: 2.7°C high, -5°C low, 94.3mm rain over 18 days, 9.6h daylight. Cold and wet — bundle up, museum and pool weather.
February
Pittsburgh in February: 4.8°C high, -3.8°C low, 83mm rain over 15 days, 10.2h daylight. Cold and wet — bundle up, museum and pool weather.
March
Pittsburgh in March: 10.2°C high, 0.3°C low, 102.8mm rain over 17 days, 11.3h daylight. Mild but rainy — flexible plans pay off.
April
Pittsburgh in April: 16.8°C high, 5.9°C low, 115.9mm rain over 18 days, 12.7h daylight. Mild but rainy — flexible plans pay off.
MayBest weather
Pittsburgh in May: 21.7°C high, 11.3°C low, 128.5mm rain over 20 days, 14h daylight. Mild but rainy — flexible plans pay off.
JuneBest weather
Pittsburgh in June: 26.1°C high, 16.1°C low, 131.1mm rain over 19 days, 14.9h daylight. Mild but rainy — flexible plans pay off.
July
Pittsburgh in July: 28.2°C high, 18.3°C low, 114mm rain over 20 days, 15h daylight. Hot and rainy — afternoon storms, plan indoor afternoons.
Pittsburgh Vintage Grand Prix
August
Pittsburgh in August: 27.5°C high, 17.6°C low, 97mm rain over 18 days, 14.3h daylight. Mild but rainy — flexible plans pay off.
SeptemberBest weather
Pittsburgh in September: 24°C high, 13.7°C low, 101.1mm rain over 15 days, 13.1h daylight. Mild but rainy — flexible plans pay off.
Annual Pitt Jazz Seminar & Concert
October
Pittsburgh in October: 17.5°C high, 7.7°C low, 97mm rain over 15 days, 11.8h daylight. Mild but rainy — flexible plans pay off.
Annual Pitt Jazz Seminar & Concert
November
Pittsburgh in November: 10.7°C high, 2.2°C low, 84.6mm rain over 14 days, 10.4h daylight. Mild but rainy — flexible plans pay off.
Annual Pitt Jazz Seminar & Concert
December
Pittsburgh in December: 5.3°C high, -1.7°C low, 87.7mm rain over 16 days, 9.5h daylight. Cold and wet — bundle up, museum and pool weather.
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Pick one of the best months and turn it into a full Pittsburgh plan — every place checked for closures, limited hours, and booking needs on your dates.