Pittsburgh weather in January
January in Pittsburgh: cold, rainy, with clean air — one of the weakest months to visit.
#12 of 12 months in Pittsburgh · #485 of 604 destinations to visit in January · comfort 49/100 (tier F)
Updated June 2026 · climate normals from ERA5 reanalysis
Pittsburgh climate normals — January
| Daytime high | 4°C / 40°F | 🧥 cold |
|---|---|---|
| Nighttime low | -3°C / 27°F | |
| Feels like (high) | 1°C / 34°F | |
| Rainfall | 100 mm / 3.9 in | 🌧 rainy |
| Rainy days | 13 days | |
| Humidity | 74% | 💧 humid |
| Dew point | -5°C / 24°F | |
| Sunshine | 4.6 h/day | |
| Daylight | 9.7 h | |
| Wind | 17 km/h / 10 mph | |
| Snowfall | 17.6 cm / 6.9 in | |
| Air quality (US AQI) | 33 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Pittsburgh in January — FAQ
- Is January a good time to visit Pittsburgh?
- January in Pittsburgh: cold, rainy, with clean air — one of the weakest months to visit. It ranks #12 of 12 months for Pittsburgh on SeasonMap's comfort score (49/100).
- What is the weather like in Pittsburgh in January?
- In January, Pittsburgh averages a daily high of 4.4°C and a low of -3°C, with about 99.6 mm of rain over roughly 13.4 rainy days.
- What is the air quality in Pittsburgh in January?
- Pittsburgh has a mean US Air Quality Index of about 33 in January.
- Does it snow in Pittsburgh in January?
- Pittsburgh sees roughly 17.6 cm of snowfall in January.