January is one of the cooler months of the year in Bonney Lake, with average highs near 1.7°C and lows around -3.4°C (mean -0.8°C). It is a relatively wet time of year, averaging 232 mm of rainfall and 94% relative humidity across the period.
January is one of the cooler months of the year in Bonney Lake. Across 45 years of records, the warmest January in Bonney Lake was 2015 — when the month averaged 2.8°C — while the coldest was 1993 at -5.3°C. Typical January days reach 1.7°C with nights near -3.4°C. The long-term trend is warming, about 0.2°C per decade.
January is a relatively wet time of year in Bonney Lake, averaging 232 mm of rainfall. The wettest January on record was 2006 with 440 mm, while the driest was 1985 at 27 mm.
Relative humidity in Bonney Lake during January averages 94%. The most humid January was 2006 at 98%, and the least humid was 2014 at 88%.
January receives about 1.1 kWh/m²/day of solar energy in Bonney Lake. The sunniest January was 2025 at 1.4 kWh/m²/day, and the cloudiest was 1999 at 0.7.
Average wind speed in Bonney Lake during January is 0.2 m/s. The windiest Januarys were 2014, 2022 and 2025, among others at 0.3 m/s, while the calmest were 2010, 2018 and 2024, among others at 0.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | -1.1°C | -1.2°C | -1.2°C | -0.2°C | -0.3°C | +0.8°C |
| Avg High | 1.5°C | 1.4°C | 1.4°C | 2.4°C | 2.1°C | +0.6°C |
| Avg Low | -3.8°C | -3.6°C | -3.8°C | -2.8°C | -2.8°C | +1°C |
| Avg Rain | 223 mm | 252 mm | 254 mm | 199 mm | 232 mm | +9 mm |
January temperatures in Bonney Lake have risen by about 0.4°C between 1981–1985 and 2021–2025.
January has ranged from a record low of -21.4°C (1996) to a record high of 14.2°C (2005).
Rainfall in January is a relatively wet time of year, averaging 232 mm, with a wettest year of 440 mm.
A quieter season to visit Bonney Lake
If your dates are flexible, the more temperate months of August and July tend to be the most comfortable for visiting Bonney Lake. That said, January — with days averaging 1.7°C and nights around -3.4°C (mean -0.8°C) and higher rainfall (232 mm) — can still be rewarding for travellers who don't mind the cooler conditions, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 1.9°C | -1.4°C | -4.7°C | 5.2°C | -11.1°C | 84 mm | 89% | 0.3 m/s | 1.4 |
| 2024 | 0.9°C | -1.2°C | -3.4°C | 9.4°C | -21.0°C | 288 mm | 98% | 0.1 m/s | 1 |
| 2023 | 2.0°C | -0.4°C | -2.8°C | 5.6°C | -14.7°C | 117 mm | 94% | 0.2 m/s | 1.1 |
| 2022 | 3.0°C | 0.3°C | -2.5°C | 7.7°C | -15.5°C | 272 mm | 90% | 0.3 m/s | 1.1 |
| 2021 | 2.9°C | 0.6°C | -1.8°C | 7.4°C | -7.3°C | 242 mm | 94% | 0.2 m/s | 1.1 |
| 2020 | 1.8°C | 0.1°C | -1.7°C | 6.9°C | -8.4°C | 391 mm | 98% | 0.2 m/s | 0.8 |
| 2019 | 3.8°C | 1.1°C | -1.6°C | 7.8°C | -5.7°C | 128 mm | 90% | 0.2 m/s | 1.2 |
| 2018 | 2.9°C | 1.0°C | -0.9°C | 7.8°C | -5.9°C | 267 mm | 96% | 0.1 m/s | 0.9 |
| 2017 | -1.3°C | -4.6°C | -7.9°C | 4.7°C | -14.9°C | 106 mm | 95% | 0.2 m/s | 1.3 |
| 2016 | 1.5°C | -0.8°C | -3.1°C | 6.7°C | -12.3°C | 226 mm | 98% | 0.2 m/s | 1.1 |
| 2015 🔥 | 6.1°C | 2.8°C | -0.5°C | 14.1°C | -10.1°C | 182 mm | 90% | 0.2 m/s | 1.2 |
| 2014 | 4.1°C | 1.2°C | -1.7°C | 9.6°C | -7.4°C | 192 mm | 88% | 0.3 m/s | 1.1 |
| 2013 | 0.3°C | -2.1°C | -4.6°C | 7.1°C | -13.3°C | 153 mm | 89% | 0.3 m/s | 1.1 |
| 2012 | 0.9°C | -1.3°C | -3.6°C | 5.8°C | -10.7°C | 273 mm | 94% | 0.2 m/s | 0.9 |
| 2011 | 2.0°C | -0.6°C | -3.2°C | 9.1°C | -13.8°C | 280 mm | 94% | 0.2 m/s | 1 |
| 2010 | 3.4°C | 1.2°C | -0.9°C | 5.9°C | -5.8°C | 181 mm | 94% | 0.1 m/s | 0.9 |
| 2009 | 0.4°C | -2.5°C | -5.4°C | 4.4°C | -15.6°C | 307 mm | 94% | 0.3 m/s | 1.2 |
| 2008 | -1.2°C | -3.9°C | -6.5°C | 1.6°C | -14.6°C | 214 mm | 98% | 0.2 m/s | 1.1 |
| 2007 | 0.4°C | -2.7°C | -5.8°C | 5.3°C | -20.3°C | 198 mm | 95% | 0.2 m/s | 1.2 |
| 2006 🌧️ | 1.8°C | 0.4°C | -1.0°C | 5.0°C | -4.6°C | 440 mm | 98% | 0.1 m/s | 0.8 |
| 2005 | 3.8°C | 0.5°C | -2.8°C | 14.2°C | -13.8°C | 157 mm | 93% | 0.2 m/s | 1.1 |
| 2004 | 1.0°C | -1.4°C | -3.7°C | 5.3°C | -20.9°C | 276 mm | 97% | 0.2 m/s | 0.9 |
| 2003 | 4.9°C | 2.2°C | -0.5°C | 9.8°C | -4.8°C | 313 mm | 93% | 0.2 m/s | 1.1 |
| 2002 | 0.8°C | -1.2°C | -3.3°C | 6.7°C | -11.1°C | 304 mm | 98% | 0.2 m/s | 0.9 |
| 2001 | 2.1°C | -0.6°C | -3.4°C | 5.5°C | -10.9°C | 103 mm | 92% | 0.2 m/s | 1.1 |
| 2000 | 0.0°C | -2.8°C | -5.5°C | 1.4°C | -11.9°C | 229 mm | 98% | 0.2 m/s | 1.1 |
| 1999 | 1.7°C | -0.4°C | -2.5°C | 5.5°C | -10.1°C | 251 mm | 96% | 0.2 m/s | 0.7 |
| 1998 | 1.0°C | -1.3°C | -3.5°C | 5.1°C | -16.7°C | 264 mm | 97% | 0.2 m/s | 1.1 |
| 1997 | 0.7°C | -1.8°C | -4.3°C | 5.8°C | -15.0°C | 258 mm | 95% | 0.2 m/s | 1.2 |
| 1996 | 0.3°C | -2.2°C | -4.6°C | 6.9°C | -21.4°C | 321 mm | 96% | 0.2 m/s | 1.1 |
| 1995 | 2.3°C | -0.3°C | -2.8°C | 8.0°C | -9.8°C | 220 mm | 92% | 0.1 m/s | 1.2 |
| 1994 | 4.0°C | 1.7°C | -0.5°C | 8.1°C | -4.6°C | 178 mm | 92% | 0.2 m/s | 1.2 |
| 1993 ❄️ | -2.2°C | -5.3°C | -8.5°C | 3.3°C | -15.8°C | 152 mm | 98% | 0.2 m/s | 1.3 |
| 1992 | 2.8°C | 0.3°C | -2.2°C | 7.9°C | -13.4°C | 242 mm | 93% | 0.2 m/s | 1 |
| 1991 | 1.6°C | -1.7°C | -5.0°C | 7.1°C | -14.6°C | 202 mm | 90% | 0.2 m/s | 1.2 |
| 1990 | 1.6°C | -0.5°C | -2.6°C | 5.0°C | -7.5°C | 434 mm | 97% | 0.2 m/s | 1.1 |
| 1989 | 0.0°C | -2.3°C | -4.7°C | 1.9°C | -16.5°C | 279 mm | 97% | 0.2 m/s | 1.1 |
| 1988 | 0.2°C | -2.5°C | -5.2°C | 4.9°C | -13.7°C | 182 mm | 95% | 0.2 m/s | 1.1 |
| 1987 | 0.9°C | -2.0°C | -4.9°C | 6.3°C | -18.7°C | 242 mm | 95% | 0.2 m/s | 1.1 |
| 1986 | 2.7°C | 0.5°C | -1.7°C | 6.5°C | -6.3°C | 257 mm | 95% | 0.1 m/s | 0.9 |
| 1985 | 0.3°C | -3.2°C | -6.7°C | 5.7°C | -10.5°C | 27 mm | 93% | 0.3 m/s | 1.2 |
| 1984 | 2.9°C | 0.0°C | -2.8°C | 8.6°C | -13.5°C | 273 mm | 92% | 0.2 m/s | 1.1 |
| 1983 | 2.8°C | 0.5°C | -1.8°C | 7.5°C | -7.8°C | 324 mm | 95% | 0.2 m/s | — |
| 1982 | -0.8°C | -2.9°C | -5.0°C | 3.3°C | -17.1°C | 359 mm | 96% | 0.2 m/s | — |
| 1981 | 4.9°C | 1.7°C | -1.5°C | 8.5°C | -6.7°C | 65 mm | 89% | 0.2 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 1.7°C with lows near -3.4°C (mean -0.8°C), based on 45 years of NASA POWER data.
January averages 232 mm of rainfall in Bonney Lake, a relatively wet time of year. The wettest on record was 440 mm in 2006.
The hottest January reached 14.2°C in 2005. The coldest dipped to -21.4°C in 1996.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have risen by about 0.4°C. Daytime highs moved from 2°C to 2.1°C and overnight lows from -3.6°C to -3°C over the same span.
January is one of the cooler months of the year in Bonney Lake and a relatively wet time of year, so plan for around 1.7°C daytime highs and -3.4°C at night.
Not quite — January is the 2nd coolest month in Bonney Lake, averaging -0.8°C.
For January in Bonney Lake, pack warm layers and a jacket for chilly mornings, with typical highs of 1.7°C and lows of -3.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in January averages 94% — quite humid.
Average wind speed in January is 0.2 m/s. The windiest January on record averaged 0.3 m/s (1985).
The wettest January on record was 2006 with 440 mm. On average, January sees 232 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 January, 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 January specifically, along with year-by-year records and how the month has changed over the decades.
