October is one of the warmer months of the year in Tucson, with average highs near 28.7°C and lows around 13.9°C (mean 21.3°C). It is about average for rainfall, averaging 22 mm of rainfall and 39% relative humidity across the period.
October is one of the warmer months of the year in Tucson. Across 45 years of records, the warmest October in Tucson was 2024 — when the month averaged 25.5°C — while the coldest was 1984 at 17.3°C. Typical October days reach 28.7°C with nights near 13.9°C. The long-term trend is warming, about 0.7°C per decade.
October is about average for rainfall in Tucson, averaging 22 mm of rainfall. The wettest October on record was 2000 with 146 mm, while the driest were 2019 and 2024 at 0 mm.
Relative humidity in Tucson during October averages 39%. The most humid October was 1983 at 67%, and the least humid was 2024 at 20%.
October receives about 5 kWh/m²/day of solar energy in Tucson. The sunniest Octobers were 1999, 2013 and 2019 at 5.5 kWh/m²/day, and the cloudiest was 1984 at 4.3.
Average wind speed in Tucson during October is 2.3 m/s. The windiest October was 1997 at 2.8 m/s, while the calmest was 2014 at 1.8 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 20.0°C | 21.0°C | 21.0°C | 22.1°C | 23.1°C | +3.1°C |
| Avg High | 27.3°C | 28.7°C | 28.3°C | 29.3°C | 30.7°C | +3.4°C |
| Avg Low | 12.8°C | 13.3°C | 13.6°C | 14.8°C | 15.5°C | +2.7°C |
| Avg Rain | 42 mm | 13 mm | 25 mm | 19 mm | 12 mm | -29 mm |
October temperatures in Tucson have risen by about 3.7°C between 1981–1985 and 2021–2025.
October has ranged from a record low of 1.1°C (2009) to a record high of 40.2°C (2024).
Rainfall in October is about average for rainfall, averaging 22 mm, with a wettest year of 146 mm.
One of the best times to visit Tucson
October is one of the best times to visit Tucson. Expect days averaging 28.7°C and nights around 13.9°C (mean 21.3°C) — warmer than Tucson's yearly average — with low rainfall (22 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 30.5°C | 23.2°C | 15.9°C | 36.3°C | 11.7°C | 41 mm | 40% | 2.1 m/s | 4.9 |
| 2024 🔥 | 33.8°C | 25.5°C | 17.2°C | 40.2°C | 8.0°C | 0 mm | 20% | 2.2 m/s | 5.2 |
| 2023 | 31.7°C | 24.2°C | 16.6°C | 37.8°C | 8.9°C | 6 mm | 31% | 2.3 m/s | 5.3 |
| 2022 | 27.3°C | 20.7°C | 14.0°C | 33.0°C | 5.8°C | 22 mm | 49% | 2.2 m/s | 4.8 |
| 2021 | 28.1°C | 20.3°C | 12.6°C | 33.3°C | 5.1°C | 3 mm | 41% | 2.3 m/s | 5.3 |
| 2020 | 32.7°C | 24.6°C | 16.5°C | 38.6°C | 2.0°C | 0 mm | 21% | 2.1 m/s | 5.3 |
| 2019 | 29.1°C | 21.3°C | 13.6°C | 35.1°C | 5.5°C | 0 mm | 32% | 2.4 m/s | 5.5 |
| 2018 | 26.0°C | 19.8°C | 13.7°C | 31.2°C | 8.4°C | 79 mm | 58% | 2.4 m/s | 4.4 |
| 2017 | 32.4°C | 24.5°C | 16.6°C | 35.9°C | 12.6°C | 1 mm | 26% | 2.5 m/s | 5.4 |
| 2016 | 31.6°C | 24.3°C | 16.9°C | 34.2°C | 12.6°C | 3 mm | 36% | 2.1 m/s | 5.2 |
| 2015 | 28.0°C | 21.9°C | 15.7°C | 36.5°C | 9.9°C | 46 mm | 52% | 2.3 m/s | 4.5 |
| 2014 | 29.8°C | 22.6°C | 15.4°C | 34.0°C | 12.5°C | 39 mm | 49% | 1.8 m/s | 5 |
| 2013 | 27.9°C | 20.2°C | 12.4°C | 33.5°C | 5.6°C | 1 mm | 30% | 2.4 m/s | 5.5 |
| 2012 | 29.8°C | 22.1°C | 14.4°C | 35.0°C | 9.3°C | 0 mm | 36% | 2.1 m/s | 5.4 |
| 2011 | 30.1°C | 22.3°C | 14.4°C | 36.1°C | 6.9°C | 4 mm | 30% | 2.1 m/s | 5.2 |
| 2010 | 28.4°C | 21.5°C | 14.6°C | 36.8°C | 9.8°C | 16 mm | 44% | 2.2 m/s | 5 |
| 2009 | 27.1°C | 19.8°C | 12.5°C | 36.0°C | 1.1°C | 6 mm | 31% | 2.5 m/s | 5.2 |
| 2008 | 29.4°C | 21.5°C | 13.6°C | 33.6°C | 3.1°C | 5 mm | 35% | 2.6 m/s | 5.3 |
| 2007 | 28.9°C | 21.2°C | 13.4°C | 34.2°C | 8.0°C | 4 mm | 34% | 2.6 m/s | 5.3 |
| 2006 | 27.0°C | 19.9°C | 12.8°C | 34.0°C | 6.6°C | 15 mm | 45% | 2.2 m/s | 4.8 |
| 2005 | 28.6°C | 21.3°C | 13.9°C | 35.2°C | 9.1°C | 5 mm | 40% | 2.3 m/s | 5 |
| 2004 | 27.5°C | 20.1°C | 12.8°C | 34.1°C | 6.0°C | 19 mm | 42% | 2.4 m/s | 5 |
| 2003 | 31.2°C | 23.8°C | 16.4°C | 37.2°C | 7.7°C | 30 mm | 40% | 2.3 m/s | 5 |
| 2002 | 27.5°C | 20.1°C | 12.8°C | 33.1°C | 8.1°C | 6 mm | 35% | 2.1 m/s | 5 |
| 2001 | 30.0°C | 22.7°C | 15.4°C | 34.4°C | 11.3°C | 15 mm | 35% | 2 m/s | 5 |
| 2000 🌧️ | 25.8°C | 19.2°C | 12.6°C | 37.0°C | 6.4°C | 146 mm | 56% | 2.3 m/s | 4.4 |
| 1999 | 31.4°C | 22.8°C | 14.3°C | 36.0°C | 6.5°C | 0 mm | 26% | 2.5 m/s | 5.5 |
| 1998 | 28.1°C | 20.4°C | 12.6°C | 36.2°C | 6.1°C | 9 mm | 37% | 2.7 m/s | 5.2 |
| 1997 | 27.9°C | 19.9°C | 12.0°C | 37.8°C | 2.5°C | 11 mm | 36% | 2.8 m/s | 5.1 |
| 1996 | 27.5°C | 20.1°C | 12.6°C | 35.9°C | 1.5°C | 26 mm | 39% | 2.4 m/s | 4.9 |
| 1995 | 30.7°C | 22.5°C | 14.2°C | 35.2°C | 9.4°C | 10 mm | 29% | 2 m/s | 5.4 |
| 1994 | 26.8°C | 19.6°C | 12.3°C | 30.5°C | 4.8°C | 18 mm | 40% | 2.4 m/s | 5 |
| 1993 | 27.4°C | 20.5°C | 13.6°C | 35.5°C | 4.0°C | 25 mm | 42% | 2.3 m/s | 4.9 |
| 1992 | 29.5°C | 21.9°C | 14.3°C | 34.2°C | 9.9°C | 6 mm | 36% | 2.3 m/s | 5 |
| 1991 | 29.1°C | 21.8°C | 14.5°C | 35.1°C | 1.5°C | 14 mm | 36% | 2.3 m/s | 5 |
| 1990 | 28.7°C | 20.8°C | 13.0°C | 32.6°C | 6.5°C | 5 mm | 42% | 2.3 m/s | 5.2 |
| 1989 | 27.7°C | 20.3°C | 12.9°C | 33.8°C | 4.1°C | 59 mm | 43% | 2.2 m/s | 4.8 |
| 1988 | 29.7°C | 22.6°C | 15.6°C | 34.6°C | 13.0°C | 65 mm | 48% | 1.9 m/s | 4.7 |
| 1987 | 29.4°C | 22.4°C | 15.3°C | 35.8°C | 12.1°C | 23 mm | 42% | 2.2 m/s | 4.7 |
| 1986 | 27.0°C | 19.4°C | 11.8°C | 30.3°C | 6.2°C | 22 mm | 43% | 2.4 m/s | 4.8 |
| 1985 | 27.1°C | 19.8°C | 12.4°C | 32.7°C | 8.3°C | 53 mm | 50% | 2.2 m/s | 4.6 |
| 1984 ❄️ | 23.9°C | 17.3°C | 10.8°C | 30.2°C | 5.9°C | 32 mm | 57% | 2.4 m/s | 4.3 |
| 1983 | 25.6°C | 19.4°C | 13.3°C | 29.4°C | 10.1°C | 105 mm | 67% | 2.3 m/s | — |
| 1982 | 28.4°C | 19.9°C | 11.5°C | 33.6°C | 6.0°C | 1 mm | 31% | 2.4 m/s | — |
| 1981 | 26.9°C | 19.2°C | 11.6°C | 31.1°C | 5.7°C | 14 mm | 44% | 2.7 m/s | — |
Actual recorded October data for each year, 1981–2025 — sourced from NASA POWER.
The average high in October is around 28.7°C with lows near 13.9°C (mean 21.3°C), based on 45 years of NASA POWER data.
October averages 22 mm of rainfall in Tucson, about average for rainfall. The wettest on record was 146 mm in 2000.
The hottest October reached 40.2°C in 2024. The coldest dipped to 1.1°C in 2009.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average October temperatures have risen by about 3.7°C. Daytime highs moved from 26.4°C to 30.3°C and overnight lows from 11.9°C to 15.3°C over the same span.
October is one of the warmer months of the year in Tucson and about average for rainfall, so plan for around 28.7°C daytime highs and 13.9°C at night.
Not quite — October is the 7th coolest month in Tucson, averaging 21.3°C.
For October in Tucson, pack light layers you can adjust through the day, with typical highs of 28.7°C and lows of 13.9°C.
Relative humidity in October averages 39% — relatively dry.
Average wind speed in October is 2.3 m/s. The windiest October on record averaged 2.8 m/s (1997).
The wettest October on record was 2000 with 146 mm. On average, October sees 22 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 Tucson 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.
