October is one of the warmer months of the year in Roseville, with average highs near 25.7°C and lows around 11.6°C (mean 18.7°C). It is one of the drier months, averaging 42 mm of rainfall and 44% relative humidity across the period.
October is one of the warmer months of the year in Roseville. Across 45 years of records, the warmest October in Roseville was 2020 — when the month averaged 22.7°C — while the coldest was 1984 at 15.1°C. Typical October days reach 25.7°C with nights near 11.6°C. The long-term trend is warming, about 0.4°C per decade.
October is one of the drier months in Roseville, averaging 42 mm of rainfall. The wettest October on record was 2021 with 220 mm, while the driest was 2020 at 0 mm.
Relative humidity in Roseville during October averages 44%. The most humid October was 2025 at 60%, and the least humid was 2020 at 25%.
October receives about 4.3 kWh/m²/day of solar energy in Roseville. 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 Roseville during October is 1.3 m/s. The windiest October was 2021 at 1.6 m/s, while the calmest was 1987 at 1.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 17.7°C | 19.0°C | 18.2°C | 18.9°C | 19.8°C | +2.1°C |
| Avg High | 24.6°C | 26.3°C | 25.1°C | 25.9°C | 26.9°C | +2.3°C |
| Avg Low | 10.8°C | 11.7°C | 11.2°C | 11.9°C | 12.8°C | +2°C |
| Avg Rain | 48 mm | 32 mm | 38 mm | 43 mm | 51 mm | +2 mm |
October temperatures in Roseville have risen by about 2.5°C between 1981–1985 and 2021–2025.
October has ranged from a record low of 2.6°C (1991) to a record high of 40.6°C (2001).
Rainfall in October is one of the drier months, averaging 42 mm, with a wettest year of 220 mm.
One of the best times to visit Roseville
October is one of the best times to visit Roseville. Expect days averaging 25.7°C and nights around 11.6°C (mean 18.7°C) — warmer than Roseville's yearly average — with moderate rainfall (42 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 | 23.6°C | 17.7°C | 11.8°C | 32.0°C | 7.4°C | 54 mm | 60% | 1.2 m/s | 3.9 |
| 2024 | 29.3°C | 21.8°C | 14.3°C | 40.1°C | 5.4°C | 9 mm | 37% | 1.3 m/s | 4.4 |
| 2023 | 27.0°C | 19.7°C | 12.4°C | 35.8°C | 5.1°C | 21 mm | 44% | 1.3 m/s | 4.3 |
| 2022 | 28.1°C | 20.5°C | 12.9°C | 34.0°C | 7.1°C | 0 mm | 38% | 1.3 m/s | 4.5 |
| 2021 🌧️ | 22.6°C | 16.5°C | 10.5°C | 33.3°C | 5.4°C | 220 mm | 52% | 1.6 m/s | 3.9 |
| 2020 🔥 | 30.5°C | 22.7°C | 14.9°C | 37.5°C | 6.4°C | 0 mm | 25% | 1.3 m/s | 4.3 |
| 2019 | 26.3°C | 18.3°C | 10.3°C | 34.0°C | 4.2°C | 0 mm | 30% | 1.4 m/s | 4.7 |
| 2018 | 26.8°C | 19.4°C | 11.9°C | 30.0°C | 7.8°C | 19 mm | 41% | 1.3 m/s | 4.5 |
| 2017 | 27.4°C | 19.6°C | 11.7°C | 34.0°C | 6.3°C | 11 mm | 32% | 1.4 m/s | 4.5 |
| 2016 | 22.8°C | 17.0°C | 11.3°C | 31.5°C | 7.3°C | 154 mm | 60% | 1.4 m/s | 3.6 |
| 2015 | 28.7°C | 21.5°C | 14.2°C | 35.5°C | 8.5°C | 13 mm | 46% | 1.2 m/s | 4.2 |
| 2014 | 27.1°C | 20.3°C | 13.6°C | 34.8°C | 8.4°C | 30 mm | 45% | 1.2 m/s | 4.3 |
| 2013 | 25.2°C | 17.6°C | 10.1°C | 29.8°C | 5.0°C | 4 mm | 35% | 1.3 m/s | 4.6 |
| 2012 | 25.6°C | 18.8°C | 11.9°C | 38.2°C | 6.2°C | 46 mm | 51% | 1.4 m/s | 4.2 |
| 2011 | 24.8°C | 18.3°C | 11.8°C | 31.9°C | 6.0°C | 52 mm | 53% | 1.2 m/s | 4.2 |
| 2010 | 24.5°C | 18.4°C | 12.4°C | 35.4°C | 3.6°C | 102 mm | 54% | 1.5 m/s | 3.9 |
| 2009 | 23.1°C | 16.6°C | 10.0°C | 29.2°C | 3.9°C | 75 mm | 52% | 1.5 m/s | 4.2 |
| 2008 | 26.3°C | 19.2°C | 12.1°C | 34.6°C | 3.7°C | 35 mm | 37% | 1.4 m/s | 4.3 |
| 2007 | 22.6°C | 16.2°C | 9.8°C | 30.5°C | 4.7°C | 43 mm | 55% | 1.3 m/s | 4.1 |
| 2006 | 24.6°C | 17.5°C | 10.3°C | 31.6°C | 6.2°C | 5 mm | 43% | 1.2 m/s | 4.3 |
| 2005 | 25.1°C | 18.3°C | 11.5°C | 32.8°C | 8.0°C | 16 mm | 46% | 1.3 m/s | 4.4 |
| 2004 | 23.6°C | 17.2°C | 10.7°C | 37.2°C | 3.4°C | 99 mm | 53% | 1.5 m/s | 4 |
| 2003 | 29.4°C | 21.6°C | 13.8°C | 36.3°C | 5.6°C | 4 mm | 32% | 1.4 m/s | 4.6 |
| 2002 | 26.1°C | 18.5°C | 10.8°C | 36.2°C | 6.4°C | 0 mm | 37% | 1.3 m/s | 4.5 |
| 2001 | 27.3°C | 20.2°C | 13.1°C | 40.6°C | 8.3°C | 22 mm | 40% | 1.3 m/s | 4.3 |
| 2000 | 23.2°C | 16.8°C | 10.4°C | 34.4°C | 3.9°C | 82 mm | 53% | 1.4 m/s | 4 |
| 1999 | 28.6°C | 20.6°C | 12.6°C | 34.3°C | 6.0°C | 21 mm | 32% | 1.3 m/s | 4.5 |
| 1998 | 24.3°C | 17.0°C | 9.8°C | 31.1°C | 5.6°C | 26 mm | 44% | 1.4 m/s | 4.4 |
| 1997 | 24.5°C | 17.4°C | 10.2°C | 31.8°C | 4.7°C | 36 mm | 46% | 1.4 m/s | 4.5 |
| 1996 | 24.8°C | 17.7°C | 10.6°C | 38.8°C | 3.5°C | 39 mm | 41% | 1.5 m/s | 4.2 |
| 1995 | 27.9°C | 20.5°C | 13.0°C | 33.4°C | 7.6°C | 0 mm | 31% | 1.3 m/s | 4.4 |
| 1994 | 24.9°C | 17.5°C | 10.2°C | 32.0°C | 5.9°C | 24 mm | 45% | 1.3 m/s | 4.7 |
| 1993 | 25.5°C | 18.9°C | 12.3°C | 35.9°C | 7.9°C | 31 mm | 47% | 1.2 m/s | 4 |
| 1992 | 26.3°C | 19.7°C | 13.1°C | 35.4°C | 9.0°C | 75 mm | 49% | 1.3 m/s | 4.1 |
| 1991 | 28.4°C | 21.0°C | 13.6°C | 37.9°C | 2.6°C | 47 mm | 35% | 1.5 m/s | 4.3 |
| 1990 | 27.3°C | 19.7°C | 12.1°C | 36.5°C | 6.3°C | 16 mm | 35% | 1.3 m/s | 4.5 |
| 1989 | 23.1°C | 16.5°C | 9.9°C | 29.9°C | 4.1°C | 79 mm | 53% | 1.4 m/s | 4.2 |
| 1988 | 28.2°C | 20.6°C | 13.0°C | 34.8°C | 9.5°C | 2 mm | 35% | 1.2 m/s | 4.3 |
| 1987 | 28.1°C | 21.1°C | 14.2°C | 37.8°C | 10.1°C | 29 mm | 39% | 1.1 m/s | 4.1 |
| 1986 | 25.2°C | 17.8°C | 10.4°C | 32.0°C | 6.8°C | 9 mm | 46% | 1.2 m/s | 4.4 |
| 1985 | 24.5°C | 17.4°C | 10.2°C | 34.7°C | 5.0°C | 24 mm | 44% | 1.4 m/s | 4.3 |
| 1984 ❄️ | 21.9°C | 15.1°C | 8.3°C | 29.7°C | 2.9°C | 55 mm | 56% | 1.4 m/s | 3.8 |
| 1983 | 25.6°C | 19.0°C | 12.4°C | 30.4°C | 8.5°C | 41 mm | 49% | 1.2 m/s | — |
| 1982 | 23.0°C | 16.5°C | 10.0°C | 29.8°C | 4.5°C | 111 mm | 52% | 1.4 m/s | — |
| 1981 | 22.1°C | 15.5°C | 8.9°C | 31.3°C | 4.4°C | 87 mm | 52% | 1.3 m/s | — |
Actual recorded October data for each year, 1981–2025 — sourced from NASA POWER.
The average high in October is around 25.7°C with lows near 11.6°C (mean 18.7°C), based on 45 years of NASA POWER data.
October averages 42 mm of rainfall in Roseville, one of the drier months. The wettest on record was 220 mm in 2021.
The hottest October reached 40.6°C in 2001. The coldest dipped to 2.6°C in 1991.
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 23.4°C to 26.1°C and overnight lows from 10°C to 12.4°C over the same span.
October is one of the warmer months of the year in Roseville and one of the drier months, so plan for around 25.7°C daytime highs and 11.6°C at night.
Not quite — October is the 8th coolest month in Roseville, averaging 18.7°C.
For October in Roseville, pack light layers you can adjust through the day, with typical highs of 25.7°C and lows of 11.6°C.
Relative humidity in October averages 44% — relatively dry.
Average wind speed in October is 1.3 m/s. The windiest October on record averaged 1.6 m/s (2021).
The wettest October on record was 2021 with 220 mm. On average, October sees 42 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 Roseville 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.
