October is one of the warmer months of the year in Elk Grove, with average highs near 26.6°C and lows around 12°C (mean 19.3°C). It is one of the drier months, averaging 35 mm of rainfall and 48% relative humidity across the period.
October is one of the warmer months of the year in Elk Grove. Across 45 years of records, the warmest October in Elk Grove was 2020 — when the month averaged 22.8°C — while the coldest were 1981 and 1984 at 16.3°C. Typical October days reach 26.6°C with nights near 12°C. The long-term trend is warming, about 0.4°C per decade.
October is one of the drier months in Elk Grove, averaging 35 mm of rainfall. The wettest October on record was 2021 with 196 mm, while the driest were 2019, 2020 and 2022, among others at 0 mm.
Relative humidity in Elk Grove during October averages 48%. The most humid October was 2025 at 64%, and the least humid was 2020 at 32%.
October receives about 4.3 kWh/m²/day of solar energy in Elk Grove. The sunniest Octobers were 1994 and 2019 at 4.7 kWh/m²/day, and the cloudiest was 2016 at 3.6.
Average wind speed in Elk Grove during October is 1.6 m/s. The windiest Octobers were 1996 and 2021 at 2 m/s, while the calmest was 1987 at 1.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 18.4°C | 19.7°C | 18.7°C | 19.7°C | 20.5°C | +2.1°C |
| Avg High | 25.6°C | 27.3°C | 25.9°C | 26.9°C | 27.9°C | +2.3°C |
| Avg Low | 11.2°C | 12.1°C | 11.5°C | 12.5°C | 13.2°C | +2°C |
| Avg Rain | 41 mm | 26 mm | 32 mm | 36 mm | 46 mm | +5 mm |
October temperatures in Elk Grove have risen by about 2.5°C between 1981–1985 and 2021–2025.
October has ranged from a record low of 4.2°C (1989) to a record high of 41.8°C (2024).
Rainfall in October is one of the drier months, averaging 35 mm, with a wettest year of 196 mm.
One of the best times to visit Elk Grove
October is one of the best times to visit Elk Grove. Expect days averaging 26.6°C and nights around 12°C (mean 19.3°C) — warmer than Elk Grove's yearly average — with moderate rainfall (35 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 | 24.6°C | 18.4°C | 12.2°C | 33.4°C | 8.4°C | 54 mm | 64% | 1.5 m/s | 3.9 |
| 2024 | 30.5°C | 22.7°C | 15.0°C | 41.8°C | 6.7°C | 5 mm | 41% | 1.6 m/s | 4.4 |
| 2023 | 28.0°C | 20.6°C | 13.1°C | 37.2°C | 5.8°C | 18 mm | 48% | 1.6 m/s | 4.3 |
| 2022 | 29.1°C | 20.8°C | 12.6°C | 35.7°C | 8.4°C | 0 mm | 45% | 1.6 m/s | 4.5 |
| 2021 🌧️ | 23.9°C | 17.6°C | 11.4°C | 34.2°C | 7.0°C | 196 mm | 54% | 2 m/s | 3.9 |
| 2020 🔥 | 31.0°C | 22.8°C | 14.6°C | 36.9°C | 8.6°C | 0 mm | 32% | 1.5 m/s | 4.3 |
| 2019 | 27.2°C | 19.2°C | 11.1°C | 34.4°C | 6.0°C | 0 mm | 32% | 1.7 m/s | 4.7 |
| 2018 | 27.5°C | 19.8°C | 12.1°C | 30.8°C | 8.6°C | 17 mm | 47% | 1.6 m/s | 4.5 |
| 2017 | 27.9°C | 20.2°C | 12.6°C | 32.6°C | 7.2°C | 8 mm | 36% | 1.7 m/s | 4.5 |
| 2016 | 24.2°C | 18.2°C | 12.2°C | 33.2°C | 8.7°C | 146 mm | 61% | 1.8 m/s | 3.6 |
| 2015 | 29.4°C | 21.9°C | 14.3°C | 36.9°C | 9.9°C | 15 mm | 51% | 1.4 m/s | 4.2 |
| 2014 | 28.5°C | 21.3°C | 14.0°C | 35.9°C | 8.3°C | 23 mm | 47% | 1.6 m/s | 4.3 |
| 2013 | 26.3°C | 18.5°C | 10.7°C | 31.2°C | 6.0°C | 2 mm | 39% | 1.5 m/s | 4.6 |
| 2012 | 26.6°C | 19.5°C | 12.4°C | 39.1°C | 8.0°C | 32 mm | 54% | 1.7 m/s | 4.2 |
| 2011 | 25.7°C | 19.1°C | 12.5°C | 31.7°C | 7.2°C | 45 mm | 57% | 1.4 m/s | 4.2 |
| 2010 | 25.6°C | 19.2°C | 12.8°C | 36.1°C | 4.6°C | 73 mm | 56% | 1.9 m/s | 3.9 |
| 2009 | 23.8°C | 17.2°C | 10.5°C | 29.8°C | 4.5°C | 70 mm | 56% | 1.9 m/s | 4.2 |
| 2008 | 27.0°C | 19.7°C | 12.4°C | 35.2°C | 5.5°C | 21 mm | 40% | 1.8 m/s | 4.3 |
| 2007 | 23.7°C | 17.1°C | 10.5°C | 29.8°C | 6.4°C | 33 mm | 57% | 1.6 m/s | 4.1 |
| 2006 | 25.2°C | 18.2°C | 11.1°C | 31.4°C | 7.2°C | 7 mm | 47% | 1.5 m/s | 4.3 |
| 2005 | 25.9°C | 18.7°C | 11.5°C | 32.5°C | 8.8°C | 12 mm | 51% | 1.6 m/s | 4.4 |
| 2004 | 24.9°C | 18.0°C | 11.1°C | 36.9°C | 5.3°C | 83 mm | 56% | 1.9 m/s | 4 |
| 2003 | 29.9°C | 21.6°C | 13.4°C | 35.8°C | 6.4°C | 3 mm | 40% | 1.7 m/s | 4.6 |
| 2002 | 26.6°C | 18.8°C | 10.9°C | 35.6°C | 7.2°C | 0 mm | 45% | 1.5 m/s | 4.5 |
| 2001 | 27.9°C | 20.6°C | 13.3°C | 41.6°C | 9.2°C | 14 mm | 45% | 1.6 m/s | 4.3 |
| 2000 | 24.3°C | 17.4°C | 10.5°C | 35.3°C | 5.1°C | 74 mm | 59% | 1.9 m/s | 4 |
| 1999 | 29.5°C | 21.1°C | 12.6°C | 35.5°C | 6.6°C | 13 mm | 38% | 1.5 m/s | 4.5 |
| 1998 | 25.3°C | 17.9°C | 10.5°C | 32.3°C | 6.2°C | 25 mm | 46% | 1.8 m/s | 4.4 |
| 1997 | 25.6°C | 18.3°C | 11.1°C | 32.6°C | 6.7°C | 28 mm | 50% | 1.8 m/s | 4.5 |
| 1996 | 25.8°C | 18.4°C | 10.9°C | 39.7°C | 4.7°C | 32 mm | 45% | 2 m/s | 4.2 |
| 1995 | 28.9°C | 20.9°C | 12.9°C | 34.5°C | 8.1°C | 1 mm | 38% | 1.7 m/s | 4.4 |
| 1994 | 25.9°C | 18.3°C | 10.6°C | 33.2°C | 6.9°C | 21 mm | 48% | 1.5 m/s | 4.7 |
| 1993 | 26.8°C | 19.9°C | 13.0°C | 36.3°C | 8.3°C | 19 mm | 48% | 1.4 m/s | 4 |
| 1992 | 27.5°C | 20.5°C | 13.6°C | 35.1°C | 9.0°C | 52 mm | 51% | 1.6 m/s | 4.1 |
| 1991 | 29.4°C | 21.5°C | 13.7°C | 38.4°C | 4.2°C | 59 mm | 39% | 1.8 m/s | 4.3 |
| 1990 | 28.4°C | 20.2°C | 12.1°C | 36.0°C | 8.3°C | 13 mm | 39% | 1.6 m/s | 4.5 |
| 1989 | 24.3°C | 17.4°C | 10.5°C | 30.5°C | 4.2°C | 61 mm | 55% | 1.7 m/s | 4.2 |
| 1988 | 28.5°C | 20.4°C | 12.3°C | 33.7°C | 8.8°C | 3 mm | 44% | 1.4 m/s | 4.3 |
| 1987 | 28.9°C | 21.7°C | 14.4°C | 38.7°C | 9.7°C | 25 mm | 44% | 1.3 m/s | 4.1 |
| 1986 | 25.9°C | 18.4°C | 10.9°C | 31.4°C | 7.5°C | 5 mm | 49% | 1.5 m/s | 4.4 |
| 1985 | 25.7°C | 18.1°C | 10.6°C | 35.7°C | 5.6°C | 26 mm | 46% | 1.6 m/s | 4.3 |
| 1984 | 23.3°C | 16.3°C | 9.3°C | 31.2°C | 4.3°C | 55 mm | 58% | 1.8 m/s | 3.8 |
| 1983 | 26.7°C | 19.7°C | 12.7°C | 31.7°C | 8.8°C | 31 mm | 52% | 1.4 m/s | — |
| 1982 | 24.0°C | 17.3°C | 10.5°C | 30.3°C | 5.9°C | 94 mm | 54% | 1.7 m/s | — |
| 1981 ❄️ | 23.3°C | 16.3°C | 9.4°C | 33.2°C | 5.5°C | 71 mm | 55% | 1.6 m/s | — |
Actual recorded October data for each year, 1981–2025 — sourced from NASA POWER.
The average high in October is around 26.6°C with lows near 12°C (mean 19.3°C), based on 45 years of NASA POWER data.
October averages 35 mm of rainfall in Elk Grove, one of the drier months. The wettest on record was 196 mm in 2021.
The hottest October reached 41.8°C in 2024. The coldest dipped to 4.2°C in 1989.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average October temperatures have risen by about 2.5°C. Daytime highs moved from 24.6°C to 27.2°C and overnight lows from 10.5°C to 12.9°C over the same span.
October is one of the warmer months of the year in Elk Grove and one of the drier months, so plan for around 26.6°C daytime highs and 12°C at night.
Not quite — October is the 8th coolest month in Elk Grove, averaging 19.3°C.
For October in Elk Grove, pack light layers you can adjust through the day, with typical highs of 26.6°C and lows of 12°C.
Relative humidity in October averages 48% — relatively dry.
Average wind speed in October is 1.6 m/s. The windiest October on record averaged 2 m/s (1996).
The wettest October on record was 2021 with 196 mm. On average, October sees 35 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 Elk Grove 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.
