October is one of the warmer months of the year in Modesto, with average highs near 26.5°C and lows around 10.9°C (mean 18.7°C). It is one of the drier months, averaging 24 mm of rainfall and 54% relative humidity across the period.
October is one of the warmer months of the year in Modesto. Across 45 years of records, the warmest October in Modesto was 2024 — when the month averaged 22.1°C — while the coldest was 1984 at 15.7°C. Typical October days reach 26.5°C with nights near 10.9°C. The long-term trend is warming, about 0.4°C per decade.
October is one of the drier months in Modesto, averaging 24 mm of rainfall. The wettest October on record was 2021 with 92 mm, while the driest were 2019, 2020 and 2022 at 0 mm.
Relative humidity in Modesto during October averages 54%. The most humid October was 2025 at 68%, and the least humid was 2020 at 38%.
October receives about 4.4 kWh/m²/day of solar energy in Modesto. The sunniest Octobers were 1999, 2003 and 2019 at 4.8 kWh/m²/day, and the cloudiest was 2010 at 3.9.
Average wind speed in Modesto during October is 2 m/s. The windiest October was 1996 at 2.6 m/s, while the calmest were 1983, 1987 and 2006 at 1.7 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 17.8°C | 19.1°C | 18.1°C | 19.2°C | 20.1°C | +2.3°C |
| Avg High | 25.5°C | 27.2°C | 25.7°C | 26.8°C | 27.9°C | +2.4°C |
| Avg Low | 10.0°C | 10.9°C | 10.5°C | 11.6°C | 12.2°C | +2.2°C |
| Avg Rain | 27 mm | 18 mm | 29 mm | 21 mm | 23 mm | -3 mm |
October temperatures in Modesto have risen by about 2.8°C between 1981–1985 and 2021–2025.
October has ranged from a record low of 3.4°C (1996) to a record high of 42°C (2024).
Rainfall in October is one of the drier months, averaging 24 mm, with a wettest year of 92 mm.
A good time to visit Modesto
October is a good time to visit Modesto, with days averaging 26.5°C and nights around 10.9°C (mean 18.7°C, warmer than Modesto's yearly average) and low rainfall. June and September 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 | 24.8°C | 18.0°C | 11.1°C | 33.7°C | 8.0°C | 42 mm | 68% | 1.8 m/s | 4.1 |
| 2024 🔥 | 30.2°C | 22.1°C | 13.9°C | 42.0°C | 7.5°C | 1 mm | 45% | 2.1 m/s | 4.5 |
| 2023 | 28.2°C | 20.3°C | 12.5°C | 37.6°C | 4.7°C | 5 mm | 51% | 1.8 m/s | 4.5 |
| 2022 | 29.1°C | 20.2°C | 11.3°C | 35.5°C | 6.6°C | 0 mm | 52% | 1.9 m/s | 4.6 |
| 2021 🌧️ | 24.6°C | 17.9°C | 11.1°C | 34.6°C | 6.4°C | 92 mm | 56% | 2.2 m/s | 4 |
| 2020 | 30.7°C | 22.0°C | 13.3°C | 37.2°C | 6.3°C | 0 mm | 38% | 1.8 m/s | 4.3 |
| 2019 | 26.8°C | 18.5°C | 10.1°C | 33.8°C | 4.3°C | 0 mm | 38% | 2 m/s | 4.8 |
| 2018 | 27.1°C | 19.3°C | 11.5°C | 31.3°C | 8.2°C | 6 mm | 51% | 1.9 m/s | 4.6 |
| 2017 | 27.4°C | 19.3°C | 11.2°C | 33.5°C | 6.6°C | 4 mm | 42% | 2 m/s | 4.7 |
| 2016 | 24.9°C | 18.2°C | 11.6°C | 34.3°C | 8.1°C | 90 mm | 63% | 2.1 m/s | 4 |
| 2015 | 29.1°C | 21.4°C | 13.6°C | 37.1°C | 9.8°C | 6 mm | 55% | 1.8 m/s | 4.4 |
| 2014 | 28.7°C | 20.9°C | 13.1°C | 36.9°C | 8.0°C | 19 mm | 53% | 1.9 m/s | 4.6 |
| 2013 | 26.2°C | 17.9°C | 9.7°C | 32.2°C | 6.4°C | 1 mm | 46% | 1.8 m/s | 4.7 |
| 2012 | 26.5°C | 19.0°C | 11.4°C | 39.4°C | 6.0°C | 15 mm | 60% | 2.1 m/s | 4.3 |
| 2011 | 25.8°C | 18.6°C | 11.4°C | 33.0°C | 6.1°C | 30 mm | 62% | 1.8 m/s | 4.5 |
| 2010 | 25.5°C | 18.7°C | 11.9°C | 36.4°C | 4.7°C | 37 mm | 58% | 2 m/s | 3.9 |
| 2009 | 23.3°C | 16.5°C | 9.7°C | 30.7°C | 3.7°C | 87 mm | 64% | 2.4 m/s | 4.4 |
| 2008 | 27.0°C | 19.1°C | 11.3°C | 35.5°C | 4.0°C | 13 mm | 44% | 2.1 m/s | 4.4 |
| 2007 | 23.9°C | 16.7°C | 9.4°C | 31.6°C | 5.0°C | 27 mm | 62% | 1.9 m/s | 4.5 |
| 2006 | 25.2°C | 17.6°C | 10.0°C | 31.3°C | 5.6°C | 6 mm | 53% | 1.7 m/s | 4.4 |
| 2005 | 26.1°C | 18.3°C | 10.5°C | 32.6°C | 6.9°C | 6 mm | 57% | 2.1 m/s | 4.6 |
| 2004 | 24.5°C | 17.4°C | 10.2°C | 35.7°C | 4.1°C | 70 mm | 61% | 2 m/s | 4 |
| 2003 | 29.4°C | 20.7°C | 11.9°C | 36.9°C | 5.8°C | 3 mm | 48% | 2.1 m/s | 4.8 |
| 2002 | 26.2°C | 18.1°C | 10.0°C | 35.6°C | 4.7°C | 0 mm | 53% | 2 m/s | 4.6 |
| 2001 | 27.8°C | 19.8°C | 11.8°C | 38.8°C | 7.1°C | 9 mm | 52% | 2 m/s | 4.5 |
| 2000 | 24.0°C | 16.9°C | 9.7°C | 36.5°C | 6.1°C | 69 mm | 65% | 2.1 m/s | 4.1 |
| 1999 | 29.6°C | 20.6°C | 11.5°C | 36.9°C | 6.5°C | 8 mm | 46% | 1.8 m/s | 4.8 |
| 1998 | 24.9°C | 17.1°C | 9.4°C | 31.3°C | 5.3°C | 20 mm | 54% | 2.2 m/s | 4.7 |
| 1997 | 25.5°C | 17.8°C | 10.1°C | 34.6°C | 6.2°C | 13 mm | 56% | 2.3 m/s | 4.6 |
| 1996 | 25.5°C | 17.6°C | 9.8°C | 39.0°C | 3.4°C | 33 mm | 54% | 2.6 m/s | 4.3 |
| 1995 | 28.8°C | 20.1°C | 11.4°C | 34.9°C | 7.5°C | 2 mm | 45% | 2 m/s | 4.5 |
| 1994 | 25.8°C | 17.9°C | 9.9°C | 32.8°C | 4.8°C | 15 mm | 53% | 2.1 m/s | 4.7 |
| 1993 | 26.9°C | 19.3°C | 11.7°C | 34.1°C | 7.2°C | 11 mm | 53% | 1.8 m/s | 4.2 |
| 1992 | 27.4°C | 19.9°C | 12.4°C | 35.6°C | 9.2°C | 30 mm | 56% | 1.8 m/s | 4.3 |
| 1991 | 29.4°C | 20.9°C | 12.4°C | 37.7°C | 3.6°C | 44 mm | 46% | 2.1 m/s | 4.4 |
| 1990 | 28.2°C | 19.4°C | 10.6°C | 35.4°C | 6.2°C | 4 mm | 46% | 2.1 m/s | 4.6 |
| 1989 | 24.7°C | 17.1°C | 9.6°C | 32.2°C | 3.6°C | 36 mm | 59% | 1.9 m/s | 4.4 |
| 1988 | 28.7°C | 19.8°C | 10.9°C | 34.9°C | 7.2°C | 3 mm | 52% | 1.8 m/s | 4.5 |
| 1987 | 28.4°C | 20.5°C | 12.6°C | 39.0°C | 7.7°C | 23 mm | 51% | 1.7 m/s | 4.2 |
| 1986 | 25.9°C | 17.9°C | 9.8°C | 31.7°C | 6.5°C | 1 mm | 53% | 1.9 m/s | 4.6 |
| 1985 | 25.4°C | 17.2°C | 9.1°C | 36.9°C | 5.3°C | 23 mm | 53% | 1.9 m/s | 4.4 |
| 1984 ❄️ | 22.9°C | 15.7°C | 8.4°C | 31.7°C | 3.9°C | 45 mm | 64% | 2.5 m/s | 4.1 |
| 1983 | 26.2°C | 18.9°C | 11.6°C | 31.5°C | 7.8°C | 11 mm | 60% | 1.7 m/s | — |
| 1982 | 23.9°C | 16.8°C | 9.7°C | 29.2°C | 5.4°C | 53 mm | 57% | 1.9 m/s | — |
| 1981 | 23.6°C | 16.1°C | 8.5°C | 33.6°C | 4.8°C | 47 mm | 58% | 2 m/s | — |
Actual recorded October data for each year, 1981–2025 — sourced from NASA POWER.
The average high in October is around 26.5°C with lows near 10.9°C (mean 18.7°C), based on 45 years of NASA POWER data.
October averages 24 mm of rainfall in Modesto, one of the drier months. The wettest on record was 92 mm in 2021.
The hottest October reached 42°C in 2024. The coldest dipped to 3.4°C in 1996.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average October temperatures have risen by about 2.8°C. Daytime highs moved from 24.4°C to 27.4°C and overnight lows from 9.5°C to 12°C over the same span.
October is one of the warmer months of the year in Modesto and one of the drier months, so plan for around 26.5°C daytime highs and 10.9°C at night.
Not quite — October is the 8th coolest month in Modesto, averaging 18.7°C.
For October in Modesto, pack light layers you can adjust through the day, with typical highs of 26.5°C and lows of 10.9°C.
Relative humidity in October averages 54% — relatively dry.
Average wind speed in October is 2 m/s. The windiest October on record averaged 2.6 m/s (1996).
The wettest October on record was 2021 with 92 mm. On average, October sees 24 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 Modesto 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.
