October is one of the warmer months of the year in Bonney Lake, with average highs near 11.8°C and lows around 3.2°C (mean 7.5°C). It is a relatively wet time of year, averaging 149 mm of rainfall and 82% relative humidity across the period.
October is one of the warmer months of the year in Bonney Lake. Across 45 years of records, the warmest October in Bonney Lake was 2022 — when the month averaged 12.4°C — while the coldest was 1984 at 4.6°C. Typical October days reach 11.8°C with nights near 3.2°C. The long-term October temperature trend is broadly flat.
October is a relatively wet time of year in Bonney Lake, averaging 149 mm of rainfall. The wettest October on record was 2016 with 338 mm, while the driest was 1987 at 12 mm.
Relative humidity in Bonney Lake during October averages 82%. The most humid October was 2016 at 91%, and the least humid was 1987 at 54%.
October receives about 2.3 kWh/m²/day of solar energy in Bonney Lake. The sunniest October was 1987 at 2.9 kWh/m²/day, and the cloudiest was 2016 at 1.8.
Average wind speed in Bonney Lake during October is 0.2 m/s. The windiest Octobers were 2017, 2018 and 2022, among others at 0.3 m/s, while the calmest were 2016, 2024 and 2025 at 0.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 7.7°C | 7.1°C | 7.2°C | 7.7°C | 7.9°C | +0.2°C |
| Avg High | 12.5°C | 11.3°C | 11.3°C | 11.8°C | 12.2°C | -0.3°C |
| Avg Low | 2.9°C | 2.8°C | 3.1°C | 3.5°C | 3.6°C | +0.7°C |
| Avg Rain | 126 mm | 161 mm | 126 mm | 184 mm | 142 mm | +16 mm |
October temperatures in Bonney Lake have risen by about 1.9°C between 1981–1985 and 2021–2025.
October has ranged from a record low of -11.9°C (1984) to a record high of 29.8°C (1987).
Rainfall in October is a relatively wet time of year, averaging 149 mm, with a wettest year of 338 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0°C per decade while lows rose 0.2°C per decade, narrowing the gap between day and night.
A good time to visit Bonney Lake
October is a good time to visit Bonney Lake, with days averaging 11.8°C and nights around 3.2°C (mean 7.5°C, warmer than Bonney Lake's yearly average) and higher rainfall. August and July 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 | 9.4°C | 5.5°C | 1.7°C | 19.2°C | -3.7°C | 174 mm | 90% | 0.1 m/s | 2.3 |
| 2024 | 10.7°C | 6.6°C | 2.4°C | 21.2°C | -2.6°C | 138 mm | 86% | 0.1 m/s | 2.3 |
| 2023 | 13.1°C | 8.5°C | 3.9°C | 26.5°C | -4.6°C | 92 mm | 81% | 0.2 m/s | 2.5 |
| 2022 🔥 | 18.0°C | 12.4°C | 6.9°C | 27.2°C | 1.3°C | 102 mm | 68% | 0.3 m/s | 2.8 |
| 2021 | 9.8°C | 6.3°C | 2.8°C | 16.7°C | -2.9°C | 179 mm | 86% | 0.2 m/s | 2.1 |
| 2020 | 12.3°C | 8.0°C | 3.7°C | 26.5°C | -6.2°C | 169 mm | 84% | 0.2 m/s | 2.5 |
| 2019 | 9.4°C | 5.3°C | 1.1°C | 15.9°C | -6.4°C | 142 mm | 79% | 0.2 m/s | 2.5 |
| 2018 | 13.4°C | 8.3°C | 3.3°C | 21.8°C | -1.2°C | 141 mm | 76% | 0.3 m/s | 2.5 |
| 2017 | 11.5°C | 6.9°C | 2.3°C | 19.7°C | -1.5°C | 211 mm | 81% | 0.3 m/s | 2.6 |
| 2016 🌧️ | 9.8°C | 6.7°C | 3.6°C | 13.3°C | -0.9°C | 338 mm | 91% | 0.1 m/s | 1.8 |
| 2015 | 15.0°C | 10.6°C | 6.1°C | 26.3°C | 1.6°C | 207 mm | 80% | 0.2 m/s | 2.1 |
| 2014 | 13.6°C | 10.0°C | 6.4°C | 22.8°C | 2.1°C | 216 mm | 86% | 0.2 m/s | 2.1 |
| 2013 | 11.7°C | 7.0°C | 2.2°C | 20.8°C | -2.8°C | 53 mm | 82% | 0.3 m/s | 2.6 |
| 2012 | 11.8°C | 7.6°C | 3.4°C | 22.7°C | -1.4°C | 249 mm | 81% | 0.2 m/s | 2.3 |
| 2011 | 9.8°C | 6.4°C | 3.1°C | 16.0°C | -2.6°C | 135 mm | 89% | 0.2 m/s | 2.1 |
| 2010 | 11.9°C | 7.9°C | 3.8°C | 21.5°C | -2.3°C | 152 mm | 84% | 0.2 m/s | 2.4 |
| 2009 | 9.8°C | 5.9°C | 1.9°C | 15.6°C | -2.9°C | 186 mm | 82% | 0.2 m/s | 2.1 |
| 2008 | 11.4°C | 7.1°C | 2.8°C | 25.5°C | -1.4°C | 78 mm | 79% | 0.2 m/s | 2.3 |
| 2007 | 9.6°C | 5.8°C | 2.0°C | 20.1°C | -3.2°C | 156 mm | 89% | 0.2 m/s | 2.1 |
| 2006 | 12.5°C | 7.9°C | 3.3°C | 22.8°C | -6.4°C | 68 mm | 77% | 0.2 m/s | 2.6 |
| 2005 | 11.0°C | 7.7°C | 4.3°C | 18.1°C | -1.9°C | 143 mm | 90% | 0.2 m/s | 2 |
| 2004 | 11.5°C | 7.8°C | 4.1°C | 21.5°C | -0.6°C | 131 mm | 85% | 0.3 m/s | 2.3 |
| 2003 | 13.4°C | 9.0°C | 4.7°C | 26.7°C | -6.9°C | 187 mm | 81% | 0.2 m/s | 2.1 |
| 2002 | 13.3°C | 7.9°C | 2.4°C | 22.5°C | -5.7°C | 27 mm | 69% | 0.2 m/s | 2.6 |
| 2001 | 9.7°C | 6.1°C | 2.6°C | 20.9°C | -4.0°C | 189 mm | 85% | 0.2 m/s | 2.2 |
| 2000 | 11.3°C | 7.1°C | 2.9°C | 20.5°C | -2.4°C | 92 mm | 83% | 0.2 m/s | 2.4 |
| 1999 | 12.9°C | 7.7°C | 2.6°C | 22.9°C | -3.6°C | 112 mm | 77% | 0.2 m/s | 2.5 |
| 1998 | 11.4°C | 7.3°C | 3.2°C | 21.9°C | -2.1°C | 108 mm | 83% | 0.2 m/s | 2.3 |
| 1997 | 9.5°C | 6.4°C | 3.2°C | 19.3°C | -0.5°C | 238 mm | 90% | 0.2 m/s | 2.1 |
| 1996 | 10.2°C | 6.3°C | 2.4°C | 24.8°C | -6.6°C | 212 mm | 84% | 0.2 m/s | 2.2 |
| 1995 | 9.7°C | 6.0°C | 2.3°C | 17.7°C | -4.7°C | 202 mm | 87% | 0.2 m/s | 2.3 |
| 1994 | 11.0°C | 6.7°C | 2.3°C | 21.4°C | -2.6°C | 250 mm | 81% | 0.2 m/s | 2.5 |
| 1993 | 14.1°C | 9.4°C | 4.7°C | 25.8°C | 1.3°C | 73 mm | 78% | 0.2 m/s | 2.4 |
| 1992 | 12.0°C | 7.8°C | 3.6°C | 21.0°C | -4.4°C | 91 mm | 82% | 0.2 m/s | 2.2 |
| 1991 | 13.0°C | 7.7°C | 2.4°C | 28.0°C | -10.1°C | 75 mm | 71% | 0.3 m/s | 2.7 |
| 1990 | 8.8°C | 5.2°C | 1.7°C | 14.4°C | -1.8°C | 252 mm | 90% | 0.2 m/s | 2.2 |
| 1989 | 11.6°C | 7.2°C | 2.7°C | 20.5°C | -3.3°C | 101 mm | 81% | 0.2 m/s | 2.3 |
| 1988 | 16.2°C | 10.9°C | 5.7°C | 26.7°C | -2.7°C | 120 mm | 78% | 0.3 m/s | 2 |
| 1987 | 18.3°C | 11.7°C | 5.1°C | 29.8°C | 0.4°C | 12 mm | 54% | 0.3 m/s | 2.9 |
| 1986 | 15.5°C | 9.8°C | 4.1°C | 23.7°C | 1.5°C | 88 mm | 72% | 0.3 m/s | 2.4 |
| 1985 | 9.0°C | 5.2°C | 1.3°C | 19.2°C | -4.5°C | 251 mm | 85% | 0.2 m/s | 2.1 |
| 1984 ❄️ | 8.6°C | 4.6°C | 0.5°C | 21.4°C | -11.9°C | 170 mm | 86% | 0.2 m/s | 2 |
| 1983 | 11.4°C | 6.7°C | 1.9°C | 17.5°C | -2.1°C | 63 mm | 83% | 0.2 m/s | — |
| 1982 | 10.7°C | 6.6°C | 2.6°C | 21.2°C | -3.0°C | 174 mm | 85% | 0.2 m/s | — |
| 1981 | 11.0°C | 6.8°C | 2.5°C | 22.8°C | -2.5°C | 154 mm | 83% | 0.3 m/s | — |
Actual recorded October data for each year, 1981–2025 — sourced from NASA POWER.
The average high in October is around 11.8°C with lows near 3.2°C (mean 7.5°C), based on 45 years of NASA POWER data.
October averages 149 mm of rainfall in Bonney Lake, a relatively wet time of year. The wettest on record was 338 mm in 2016.
The hottest October reached 29.8°C in 1987. The coldest dipped to -11.9°C in 1984.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average October temperatures have risen by about 1.9°C. Daytime highs moved from 10.1°C to 12.2°C and overnight lows from 1.8°C to 3.5°C over the same span.
October is one of the warmer months of the year in Bonney Lake and a relatively wet time of year, so plan for around 11.8°C daytime highs and 3.2°C at night.
Not quite — October is the 7th coolest month in Bonney Lake, averaging 7.5°C.
For October in Bonney Lake, pack warm layers and a jacket for chilly mornings, with typical highs of 11.8°C and lows of 3.2°C. Bring an umbrella or light rain jacket too.
Relative humidity in October averages 82% — quite humid.
Average wind speed in October is 0.2 m/s. The windiest October on record averaged 0.3 m/s (1981).
The wettest October on record was 2016 with 338 mm. On average, October sees 149 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 Bonney Lake 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.
