October is one of the warmer months of the year in Surprise, with average highs near 31.4°C and lows around 16.6°C (mean 24°C). It is about average for rainfall, averaging 15 mm of rainfall and 30% relative humidity across the period.
October is one of the warmer months of the year in Surprise. Across 45 years of records, the warmest October in Surprise was 2024 — when the month averaged 28°C — while the coldest was 1984 at 20.1°C. Typical October days reach 31.4°C with nights near 16.6°C. The long-term trend is warming, about 0.6°C per decade.
October is about average for rainfall in Surprise, averaging 15 mm of rainfall. The wettest October on record was 2018 with 96 mm, while the driest were 2019, 2020 and 2023, among others at 0 mm.
Relative humidity in Surprise during October averages 30%. The most humid October was 2018 at 52%, and the least humid was 1999 at 17%.
October receives about 5 kWh/m²/day of solar energy in Surprise. The sunniest Octobers were 1999 and 2019 at 5.4 kWh/m²/day, and the cloudiest was 1985 at 4.4.
Average wind speed in Surprise during October is 2.1 m/s. The windiest October was 2008 at 2.4 m/s, while the calmest was 2014 at 1.6 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 22.8°C | 23.8°C | 23.8°C | 24.6°C | 25.5°C | +2.7°C |
| Avg High | 30.2°C | 31.6°C | 31.0°C | 31.8°C | 33.0°C | +2.8°C |
| Avg Low | 15.5°C | 16.0°C | 16.5°C | 17.4°C | 18.1°C | +2.6°C |
| Avg Rain | 18 mm | 9 mm | 17 mm | 17 mm | 15 mm | -3 mm |
October temperatures in Surprise have risen by about 3.4°C between 1981–1985 and 2021–2025.
October has ranged from a record low of 2.5°C (1991) to a record high of 43.8°C (2024).
Rainfall in October is about average for rainfall, averaging 15 mm, with a wettest year of 96 mm.
One of the best times to visit Surprise
October is one of the best times to visit Surprise. Expect days averaging 31.4°C and nights around 16.6°C (mean 24°C) — warmer than Surprise's yearly average — with low rainfall (15 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 | 31.7°C | 24.5°C | 17.2°C | 37.9°C | 12.9°C | 48 mm | 39% | 1.8 m/s | 4.9 |
| 2024 🔥 | 35.7°C | 28.0°C | 20.2°C | 43.8°C | 9.7°C | 2 mm | 19% | 1.9 m/s | 5.1 |
| 2023 | 34.0°C | 26.4°C | 18.9°C | 39.9°C | 12.0°C | 0 mm | 23% | 2 m/s | 5.3 |
| 2022 | 30.9°C | 24.3°C | 17.6°C | 36.6°C | 8.6°C | 34 mm | 38% | 1.9 m/s | 4.9 |
| 2021 | 30.7°C | 23.4°C | 16.1°C | 36.2°C | 9.4°C | 5 mm | 30% | 2.1 m/s | 5.1 |
| 2020 | 34.8°C | 26.6°C | 18.3°C | 41.2°C | 7.3°C | 0 mm | 18% | 1.9 m/s | 5.2 |
| 2019 | 31.0°C | 23.1°C | 15.2°C | 35.7°C | 5.6°C | 0 mm | 24% | 2.2 m/s | 5.4 |
| 2018 🌧️ | 28.2°C | 22.3°C | 16.5°C | 32.2°C | 12.0°C | 96 mm | 52% | 2.1 m/s | 4.5 |
| 2017 | 34.4°C | 26.5°C | 18.6°C | 37.3°C | 14.7°C | 0 mm | 19% | 2.2 m/s | 5.3 |
| 2016 | 34.2°C | 26.9°C | 19.6°C | 37.0°C | 14.6°C | 3 mm | 27% | 1.9 m/s | 5 |
| 2015 | 31.5°C | 25.3°C | 19.2°C | 40.5°C | 11.6°C | 31 mm | 41% | 1.9 m/s | 4.5 |
| 2014 | 32.4°C | 25.2°C | 18.0°C | 36.6°C | 14.7°C | 6 mm | 37% | 1.6 m/s | 4.9 |
| 2013 | 30.1°C | 22.3°C | 14.4°C | 35.4°C | 8.9°C | 2 mm | 24% | 2.1 m/s | 5.3 |
| 2012 | 32.8°C | 25.2°C | 17.5°C | 40.1°C | 11.8°C | 3 mm | 25% | 2 m/s | 5.2 |
| 2011 | 32.9°C | 25.0°C | 17.1°C | 38.0°C | 11.1°C | 4 mm | 23% | 2.1 m/s | 5.1 |
| 2010 | 30.7°C | 24.0°C | 17.4°C | 40.6°C | 11.8°C | 25 mm | 39% | 1.9 m/s | 4.8 |
| 2009 | 29.6°C | 22.2°C | 14.8°C | 38.8°C | 5.0°C | 0 mm | 23% | 2.2 m/s | 5.2 |
| 2008 | 32.4°C | 24.4°C | 16.4°C | 37.9°C | 6.8°C | 0 mm | 21% | 2.4 m/s | 5.2 |
| 2007 | 31.7°C | 24.2°C | 16.6°C | 36.0°C | 11.9°C | 1 mm | 23% | 2.3 m/s | 5.2 |
| 2006 | 30.2°C | 23.0°C | 15.8°C | 38.0°C | 9.8°C | 7 mm | 31% | 2 m/s | 5 |
| 2005 | 31.2°C | 24.3°C | 17.4°C | 37.9°C | 12.7°C | 13 mm | 33% | 2.1 m/s | 4.9 |
| 2004 | 29.5°C | 22.2°C | 14.9°C | 36.9°C | 7.1°C | 41 mm | 37% | 2.1 m/s | 4.9 |
| 2003 | 34.9°C | 27.2°C | 19.5°C | 40.7°C | 12.6°C | 6 mm | 27% | 2 m/s | 4.9 |
| 2002 | 29.5°C | 22.5°C | 15.5°C | 35.8°C | 9.7°C | 14 mm | 33% | 1.7 m/s | 4.8 |
| 2001 | 32.7°C | 25.4°C | 18.2°C | 36.4°C | 12.7°C | 7 mm | 28% | 2 m/s | 4.8 |
| 2000 | 28.5°C | 22.2°C | 15.9°C | 40.9°C | 8.2°C | 81 mm | 44% | 2.1 m/s | 4.5 |
| 1999 | 34.6°C | 25.8°C | 17.0°C | 39.0°C | 10.8°C | 2 mm | 17% | 2.2 m/s | 5.4 |
| 1998 | 30.6°C | 23.1°C | 15.6°C | 37.4°C | 8.7°C | 18 mm | 28% | 2.3 m/s | 5 |
| 1997 | 30.3°C | 22.5°C | 14.7°C | 39.4°C | 6.1°C | 4 mm | 31% | 2.3 m/s | 5.2 |
| 1996 | 30.6°C | 23.0°C | 15.4°C | 40.2°C | 5.0°C | 3 mm | 27% | 2.2 m/s | 5.1 |
| 1995 | 33.0°C | 24.5°C | 16.0°C | 37.8°C | 10.7°C | 3 mm | 21% | 2 m/s | 5.2 |
| 1994 | 29.6°C | 22.2°C | 14.8°C | 35.2°C | 6.9°C | 9 mm | 30% | 2 m/s | 5 |
| 1993 | 30.2°C | 23.1°C | 15.9°C | 39.2°C | 9.2°C | 23 mm | 34% | 2.1 m/s | 4.8 |
| 1992 | 32.4°C | 24.7°C | 17.0°C | 37.4°C | 13.2°C | 6 mm | 27% | 2 m/s | 4.9 |
| 1991 | 32.8°C | 25.1°C | 17.4°C | 39.7°C | 2.5°C | 19 mm | 27% | 2.1 m/s | 4.9 |
| 1990 | 32.0°C | 23.9°C | 15.7°C | 35.6°C | 10.0°C | 4 mm | 29% | 2.2 m/s | 5.1 |
| 1989 | 30.5°C | 23.0°C | 15.5°C | 36.8°C | 6.6°C | 17 mm | 32% | 2.1 m/s | 4.9 |
| 1988 | 33.5°C | 26.2°C | 18.9°C | 39.0°C | 15.9°C | 25 mm | 38% | 2 m/s | 4.8 |
| 1987 | 32.0°C | 25.1°C | 18.2°C | 39.4°C | 15.2°C | 41 mm | 35% | 2 m/s | 4.5 |
| 1986 | 29.0°C | 21.5°C | 14.1°C | 34.1°C | 8.3°C | 20 mm | 35% | 2.1 m/s | 4.7 |
| 1985 | 29.5°C | 22.5°C | 15.6°C | 36.1°C | 11.5°C | 29 mm | 42% | 2 m/s | 4.4 |
| 1984 ❄️ | 27.6°C | 20.1°C | 12.7°C | 33.7°C | 6.6°C | 8 mm | 38% | 1.9 m/s | 4.6 |
| 1983 | 30.0°C | 23.3°C | 16.6°C | 33.1°C | 13.6°C | 12 mm | 48% | 2 m/s | — |
| 1982 | 30.7°C | 22.3°C | 13.9°C | 35.2°C | 9.1°C | 1 mm | 21% | 2.3 m/s | — |
| 1981 | 29.2°C | 21.5°C | 13.9°C | 33.5°C | 7.9°C | 12 mm | 33% | 2.2 m/s | — |
Actual recorded October data for each year, 1981–2025 — sourced from NASA POWER.
The average high in October is around 31.4°C with lows near 16.6°C (mean 24°C), based on 45 years of NASA POWER data.
October averages 15 mm of rainfall in Surprise, about average for rainfall. The wettest on record was 96 mm in 2018.
The hottest October reached 43.8°C in 2024. The coldest dipped to 2.5°C in 1991.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average October temperatures have risen by about 3.4°C. Daytime highs moved from 29.4°C to 32.6°C and overnight lows from 14.5°C to 18°C over the same span.
October is one of the warmer months of the year in Surprise and about average for rainfall, so plan for around 31.4°C daytime highs and 16.6°C at night.
Not quite — October is the 7th coolest month in Surprise, averaging 24°C.
For October in Surprise, pack light, breathable clothing and sun protection, with typical highs of 31.4°C and lows of 16.6°C.
Relative humidity in October averages 30% — relatively dry.
Average wind speed in October is 2.1 m/s. The windiest October on record averaged 2.4 m/s (2008).
The wettest October on record was 2018 with 96 mm. On average, October sees 15 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 Surprise 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.
