October is one of the warmer months of the year in Pittsburgh, with average highs near 17.9°C and lows around 5.7°C (mean 11.8°C). It is one of the drier months, averaging 70 mm of rainfall and 75% relative humidity across the period.
October is one of the warmer months of the year in Pittsburgh. Across 45 years of records, the warmest October in Pittsburgh was 2021 — when the month averaged 15.6°C — while the coldest was 1988 at 7.6°C. Typical October days reach 17.9°C with nights near 5.7°C. The long-term trend is warming, about 0.4°C per decade.
October is one of the drier months in Pittsburgh, averaging 70 mm of rainfall. The wettest Octobers on record were 2006 and 2012 with 128 mm, while the driest was 1982 at 16 mm.
Relative humidity in Pittsburgh during October averages 75%. The most humid Octobers were 2011 and 2018 at 84%, and the least humid was 2001 at 65%.
October receives about 3 kWh/m²/day of solar energy in Pittsburgh. The sunniest October was 2024 at 3.7 kWh/m²/day, and the cloudiest were 2002 and 2009 at 2.4.
Average wind speed in Pittsburgh during October is 0.2 m/s. The windiest October was 2024 at 0.3 m/s, while the calmest were 2022, 2023 and 2025, among others at 0.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 11.3°C | 11.3°C | 11.6°C | 12.4°C | 13.0°C | +1.7°C |
| Avg High | 17.3°C | 17.8°C | 17.6°C | 18.2°C | 19.3°C | +2°C |
| Avg Low | 5.2°C | 4.8°C | 5.6°C | 6.7°C | 6.7°C | +1.5°C |
| Avg Rain | 63 mm | 56 mm | 73 mm | 92 mm | 64 mm | +2 mm |
October temperatures in Pittsburgh have risen by about 0.6°C between 1981–1985 and 2021–2025.
October has ranged from a record low of -5.2°C (1988) to a record high of 32.8°C (2019).
Rainfall in October is one of the drier months, averaging 70 mm, with a wettest year of 128 mm.
A good time to visit Pittsburgh
October is a good time to visit Pittsburgh, with days averaging 17.9°C and nights around 5.7°C (mean 11.8°C, warmer than Pittsburgh's yearly average) and moderate rainfall. August and July are marginally more temperate, but October still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 19.3°C | 12.5°C | 5.7°C | 29.6°C | -0.5°C | 72 mm | 70% | 0.2 m/s | 3.3 |
| 2024 | 21.1°C | 13.6°C | 6.2°C | 28.5°C | -0.5°C | 21 mm | 67% | 0.3 m/s | 3.7 |
| 2023 | 19.1°C | 13.2°C | 7.4°C | 30.1°C | 0.2°C | 82 mm | 72% | 0.2 m/s | 2.8 |
| 2022 | 17.0°C | 10.4°C | 3.8°C | 23.7°C | -1.4°C | 51 mm | 72% | 0.2 m/s | 3.2 |
| 2021 🔥 | 21.0°C | 15.6°C | 10.2°C | 28.4°C | 3.3°C | 72 mm | 80% | 0.2 m/s | 2.7 |
| 2020 | 18.3°C | 12.5°C | 6.8°C | 27.0°C | -2.2°C | 90 mm | 75% | 0.2 m/s | 2.8 |
| 2019 | 20.0°C | 13.6°C | 7.1°C | 32.8°C | 0.7°C | 123 mm | 74% | 0.2 m/s | 3.1 |
| 2018 | 17.3°C | 12.0°C | 6.8°C | 28.9°C | -2.4°C | 93 mm | 84% | 0.2 m/s | 2.7 |
| 2017 | 21.0°C | 14.8°C | 8.5°C | 28.7°C | -0.1°C | 97 mm | 73% | 0.2 m/s | 3 |
| 2016 | 19.7°C | 13.5°C | 7.4°C | 27.0°C | -0.3°C | 102 mm | 77% | 0.2 m/s | 3.1 |
| 2015 | 17.5°C | 11.7°C | 5.9°C | 24.2°C | -2.9°C | 77 mm | 74% | 0.2 m/s | 3 |
| 2014 | 18.0°C | 12.5°C | 6.9°C | 27.7°C | 0.9°C | 63 mm | 75% | 0.2 m/s | 2.7 |
| 2013 | 18.7°C | 12.8°C | 7.0°C | 29.6°C | -2.0°C | 59 mm | 77% | 0.2 m/s | 3 |
| 2012 | 16.8°C | 11.4°C | 6.0°C | 26.5°C | -2.1°C | 128 mm | 80% | 0.2 m/s | 2.6 |
| 2011 | 15.6°C | 10.6°C | 5.5°C | 25.9°C | -2.2°C | 114 mm | 84% | 0.2 m/s | 2.5 |
| 2010 | 17.5°C | 11.5°C | 5.5°C | 27.0°C | -1.0°C | 64 mm | 74% | 0.2 m/s | 3 |
| 2009 | 15.5°C | 10.1°C | 4.6°C | 24.6°C | -2.9°C | 84 mm | 80% | 0.2 m/s | 2.4 |
| 2008 | 16.8°C | 10.3°C | 3.8°C | 28.0°C | -4.5°C | 52 mm | 70% | 0.2 m/s | 3.2 |
| 2007 | 21.6°C | 15.3°C | 9.0°C | 31.9°C | -1.1°C | 55 mm | 71% | 0.2 m/s | 3.1 |
| 2006 🌧️ | 15.6°C | 10.2°C | 4.7°C | 25.8°C | -2.5°C | 128 mm | 79% | 0.2 m/s | 2.7 |
| 2005 | 18.8°C | 12.9°C | 7.0°C | 29.9°C | -0.7°C | 89 mm | 77% | 0.2 m/s | 2.7 |
| 2004 | 17.3°C | 11.7°C | 6.2°C | 23.5°C | -1.0°C | 69 mm | 83% | 0.2 m/s | 2.9 |
| 2003 | 16.3°C | 10.1°C | 3.9°C | 24.7°C | -2.8°C | 67 mm | 78% | 0.2 m/s | 3.1 |
| 2002 | 16.0°C | 10.6°C | 5.2°C | 28.6°C | -2.2°C | 76 mm | 80% | 0.2 m/s | 2.4 |
| 2001 | 18.9°C | 12.3°C | 5.7°C | 28.1°C | -2.6°C | 61 mm | 65% | 0.2 m/s | 3.2 |
| 2000 | 19.1°C | 12.3°C | 5.6°C | 26.2°C | -2.6°C | 54 mm | 75% | 0.2 m/s | 3.2 |
| 1999 | 18.6°C | 11.5°C | 4.3°C | 25.3°C | -2.0°C | 38 mm | 70% | 0.2 m/s | 3.4 |
| 1998 | 18.4°C | 11.9°C | 5.4°C | 27.0°C | -0.7°C | 64 mm | 73% | 0.2 m/s | 3.2 |
| 1997 | 18.0°C | 11.1°C | 4.2°C | 28.5°C | -4.2°C | 27 mm | 72% | 0.2 m/s | 3.5 |
| 1996 | 16.7°C | 10.7°C | 4.7°C | 23.2°C | -0.8°C | 81 mm | 80% | 0.2 m/s | 2.9 |
| 1995 | 19.2°C | 12.6°C | 6.1°C | 26.6°C | -0.7°C | 105 mm | 72% | 0.2 m/s | 3.1 |
| 1994 | 17.9°C | 11.0°C | 4.1°C | 23.8°C | -1.1°C | 26 mm | 71% | 0.2 m/s | 3.2 |
| 1993 | 16.5°C | 10.2°C | 3.9°C | 26.4°C | -2.6°C | 64 mm | 73% | 0.2 m/s | 3.1 |
| 1992 | 16.0°C | 9.8°C | 3.5°C | 23.3°C | -4.3°C | 39 mm | 74% | 0.2 m/s | 2.8 |
| 1991 | 19.1°C | 12.2°C | 5.3°C | 27.3°C | -2.1°C | 23 mm | 69% | 0.2 m/s | 3.1 |
| 1990 | 17.3°C | 11.7°C | 6.1°C | 25.3°C | -3.3°C | 97 mm | 81% | 0.2 m/s | 2.9 |
| 1989 | 17.3°C | 11.3°C | 5.2°C | 25.8°C | -1.3°C | 70 mm | 78% | 0.2 m/s | 3 |
| 1988 ❄️ | 13.3°C | 7.6°C | 2.0°C | 28.2°C | -5.2°C | 51 mm | 72% | 0.2 m/s | 2.9 |
| 1987 | 14.5°C | 8.3°C | 2.1°C | 20.9°C | -2.8°C | 38 mm | 74% | 0.2 m/s | 3.1 |
| 1986 | 17.5°C | 11.9°C | 6.3°C | 26.2°C | -0.7°C | 87 mm | 80% | 0.2 m/s | 3.1 |
| 1985 | 19.1°C | 12.9°C | 6.6°C | 25.8°C | -3.5°C | 59 mm | 71% | 0.2 m/s | 3 |
| 1984 | 21.0°C | 15.0°C | 9.0°C | 26.5°C | 3.0°C | 74 mm | 78% | 0.2 m/s | 2.9 |
| 1983 | 17.8°C | 11.8°C | 5.8°C | 27.2°C | -3.9°C | 101 mm | 77% | 0.2 m/s | — |
| 1982 | 19.0°C | 12.6°C | 6.2°C | 26.5°C | -4.3°C | 16 mm | 70% | 0.2 m/s | — |
| 1981 | 16.5°C | 10.1°C | 3.6°C | 24.0°C | -3.9°C | 66 mm | 73% | 0.2 m/s | — |
Actual recorded October data for each year, 1981–2025 — sourced from NASA POWER.
The average high in October is around 17.9°C with lows near 5.7°C (mean 11.8°C), based on 45 years of NASA POWER data.
October averages 70 mm of rainfall in Pittsburgh, one of the drier months. The wettest on record was 128 mm in 2006.
The hottest October reached 32.8°C in 2019. The coldest dipped to -5.2°C in 1988.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average October temperatures have risen by about 0.6°C. Daytime highs moved from 18.7°C to 19.5°C and overnight lows from 6.2°C to 6.7°C over the same span.
October is one of the warmer months of the year in Pittsburgh and one of the drier months, so plan for around 17.9°C daytime highs and 5.7°C at night.
Not quite — October is the 7th coolest month in Pittsburgh, averaging 11.8°C.
For October in Pittsburgh, pack warm layers and a jacket for chilly mornings, with typical highs of 17.9°C and lows of 5.7°C. Bring an umbrella or light rain jacket too.
Relative humidity in October averages 75% — moderately humid.
Average wind speed in October is 0.2 m/s. The windiest October on record averaged 0.3 m/s (2024).
The wettest October on record was 2006 with 128 mm. On average, October sees 70 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Pittsburgh behaves each October, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for October specifically, along with year-by-year records and how the month has changed over the decades.
