November is one of the cooler months of the year in Sammamish, with average highs near 7.1°C and lows around 1.3°C (mean 4.2°C). It is a relatively wet time of year, averaging 271 mm of rainfall and 91% relative humidity across the period.
November is one of the cooler months of the year in Sammamish. Across 45 years of records, the warmest November in Sammamish was 2002 — when the month averaged 7.3°C — while the coldest was 1985 at -3.2°C. Typical November days reach 7.1°C with nights near 1.3°C. The long-term trend is warming, about 0.3°C per decade.
November is a relatively wet time of year in Sammamish, averaging 271 mm of rainfall. The wettest November on record was 2006 with 581 mm, while the driest was 2019 at 79 mm.
Relative humidity in Sammamish during November averages 91%. The most humid November was 2024 at 96%, and the least humid was 2002 at 81%.
November receives about 1.2 kWh/m²/day of solar energy in Sammamish. The sunniest Novembers were 1993 and 2019 at 1.6 kWh/m²/day, and the cloudiest was 2006 at 0.9.
Average wind speed in Sammamish during November is 0.3 m/s. The windiest November was 1993 at 0.4 m/s, while the calmest were 2024 and 2025 at 0.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 3.5°C | 4.4°C | 4.5°C | 4.5°C | 4.2°C | +0.7°C |
| Avg High | 6.3°C | 7.2°C | 7.5°C | 7.5°C | 7.0°C | +0.7°C |
| Avg Low | 0.6°C | 1.6°C | 1.5°C | 1.6°C | 1.5°C | +0.9°C |
| Avg Rain | 276 mm | 313 mm | 258 mm | 238 mm | 272 mm | -4 mm |
November temperatures in Sammamish have risen by about 1.8°C between 1981–1985 and 2021–2025.
November has ranged from a record low of -19.4°C (1985) to a record high of 19°C (2020).
Rainfall in November is a relatively wet time of year, averaging 271 mm, with a wettest year of 581 mm.
A quieter season to visit Sammamish
If your dates are flexible, the more temperate months of August and July tend to be the most comfortable for visiting Sammamish. That said, November — with days averaging 7.1°C and nights around 1.3°C (mean 4.2°C) and higher rainfall (271 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 | 7.1°C | 4.6°C | 2.1°C | 12.5°C | -4.9°C | 239 mm | 94% | 0.2 m/s | 1.2 |
| 2024 | 4.9°C | 2.9°C | 1.0°C | 10.0°C | -3.4°C | 237 mm | 96% | 0.2 m/s | 1.1 |
| 2023 | 8.5°C | 5.1°C | 1.7°C | 15.8°C | -3.0°C | 214 mm | 89% | 0.3 m/s | 1.5 |
| 2022 | 6.0°C | 2.5°C | -1.0°C | 11.2°C | -7.4°C | 263 mm | 86% | 0.3 m/s | 1.4 |
| 2021 | 8.3°C | 5.7°C | 3.2°C | 13.1°C | -3.6°C | 399 mm | 93% | 0.3 m/s | 1 |
| 2020 | 7.2°C | 4.5°C | 1.8°C | 19.0°C | -4.1°C | 283 mm | 92% | 0.3 m/s | 1.2 |
| 2019 | 9.1°C | 5.5°C | 2.0°C | 14.6°C | -5.5°C | 79 mm | 83% | 0.3 m/s | 1.6 |
| 2018 | 9.0°C | 5.9°C | 2.8°C | 13.4°C | -1.2°C | 222 mm | 88% | 0.3 m/s | 1.3 |
| 2017 | 6.3°C | 3.9°C | 1.4°C | 15.7°C | -8.4°C | 319 mm | 94% | 0.3 m/s | 1 |
| 2016 | 9.6°C | 7.0°C | 4.5°C | 18.4°C | 0.8°C | 231 mm | 91% | 0.3 m/s | 1.1 |
| 2015 | 6.8°C | 3.8°C | 0.8°C | 11.5°C | -4.7°C | 322 mm | 90% | 0.3 m/s | 1.3 |
| 2014 | 7.2°C | 4.1°C | 1.0°C | 13.3°C | -10.2°C | 277 mm | 83% | 0.3 m/s | 1.4 |
| 2013 | 7.4°C | 4.4°C | 1.4°C | 14.5°C | -4.6°C | 211 mm | 89% | 0.3 m/s | 1.3 |
| 2012 | 7.8°C | 5.2°C | 2.5°C | 14.4°C | -2.0°C | 241 mm | 92% | 0.3 m/s | 1.1 |
| 2011 | 5.8°C | 2.7°C | -0.5°C | 13.3°C | -8.5°C | 257 mm | 91% | 0.3 m/s | 1.2 |
| 2010 | 5.8°C | 2.9°C | -0.1°C | 18.2°C | -14.2°C | 222 mm | 92% | 0.3 m/s | 1.1 |
| 2009 | 6.8°C | 4.3°C | 1.8°C | 13.6°C | -1.9°C | 281 mm | 92% | 0.3 m/s | 1.1 |
| 2008 | 9.3°C | 6.3°C | 3.3°C | 15.7°C | -3.4°C | 320 mm | 90% | 0.3 m/s | 1.2 |
| 2007 | 7.2°C | 3.8°C | 0.5°C | 14.2°C | -7.4°C | 134 mm | 89% | 0.3 m/s | 1.3 |
| 2006 🌧️ | 5.9°C | 3.6°C | 1.4°C | 15.6°C | -13.7°C | 581 mm | 94% | 0.3 m/s | 0.9 |
| 2005 | 6.6°C | 3.4°C | 0.3°C | 13.1°C | -7.5°C | 229 mm | 92% | 0.3 m/s | 1.2 |
| 2004 | 8.8°C | 5.5°C | 2.2°C | 15.7°C | -2.8°C | 197 mm | 91% | 0.3 m/s | 1.2 |
| 2003 | 5.7°C | 2.7°C | -0.3°C | 13.3°C | -8.6°C | 317 mm | 88% | 0.3 m/s | 1.4 |
| 2002 🔥 | 11.0°C | 7.3°C | 3.6°C | 16.5°C | -2.1°C | 141 mm | 81% | 0.3 m/s | 1.3 |
| 2001 | 8.2°C | 5.6°C | 3.0°C | 13.7°C | -1.1°C | 264 mm | 89% | 0.3 m/s | 1.1 |
| 2000 | 5.9°C | 2.7°C | -0.6°C | 14.8°C | -6.0°C | 117 mm | 86% | 0.3 m/s | 1.3 |
| 1999 | 8.3°C | 5.6°C | 3.0°C | 16.9°C | -1.7°C | 311 mm | 92% | 0.3 m/s | 1.1 |
| 1998 | 7.2°C | 4.7°C | 2.2°C | 12.2°C | -0.8°C | 397 mm | 94% | 0.3 m/s | 1.2 |
| 1997 | 9.9°C | 6.5°C | 3.2°C | 16.4°C | -0.6°C | 139 mm | 86% | 0.3 m/s | 1.3 |
| 1996 | 6.4°C | 3.7°C | 0.9°C | 17.6°C | -12.5°C | 278 mm | 94% | 0.3 m/s | 1.2 |
| 1995 | 9.6°C | 6.7°C | 3.8°C | 18.4°C | -3.0°C | 524 mm | 92% | 0.3 m/s | 1.1 |
| 1994 | 3.1°C | 0.8°C | -1.5°C | 6.3°C | -7.4°C | 286 mm | 96% | 0.3 m/s | 1.3 |
| 1993 | 5.5°C | 1.9°C | -1.8°C | 11.4°C | -14.3°C | 138 mm | 86% | 0.4 m/s | 1.6 |
| 1992 | 7.0°C | 4.0°C | 1.0°C | 12.4°C | -5.8°C | 251 mm | 92% | 0.3 m/s | 1.2 |
| 1991 | 7.6°C | 4.9°C | 2.3°C | 13.6°C | -4.1°C | 307 mm | 92% | 0.3 m/s | 1.2 |
| 1990 | 7.3°C | 4.8°C | 2.4°C | 16.1°C | -2.4°C | 495 mm | 94% | 0.3 m/s | 1.1 |
| 1989 | 7.7°C | 5.0°C | 2.3°C | 14.8°C | -2.1°C | 312 mm | 91% | 0.3 m/s | 1.2 |
| 1988 | 6.0°C | 3.7°C | 1.5°C | 12.9°C | -3.1°C | 363 mm | 96% | 0.3 m/s | 1.1 |
| 1987 | 9.4°C | 6.2°C | 3.0°C | 17.0°C | -4.2°C | 153 mm | 85% | 0.3 m/s | 1.1 |
| 1986 | 6.9°C | 4.0°C | 1.0°C | 15.3°C | -5.2°C | 380 mm | 91% | 0.3 m/s | 1.2 |
| 1985 ❄️ | 0.4°C | -3.2°C | -6.7°C | 10.4°C | -19.4°C | 209 mm | 93% | 0.3 m/s | 1.2 |
| 1984 | 6.2°C | 3.5°C | 0.8°C | 10.0°C | -3.1°C | 313 mm | 93% | 0.3 m/s | 1 |
| 1983 | 6.5°C | 4.1°C | 1.6°C | 12.0°C | -6.5°C | 381 mm | 94% | 0.3 m/s | — |
| 1982 | 5.1°C | 2.1°C | -0.9°C | 12.2°C | -7.2°C | 193 mm | 89% | 0.3 m/s | — |
| 1981 | 8.9°C | 5.7°C | 2.5°C | 17.5°C | -3.6°C | 180 mm | 89% | 0.3 m/s | — |
Actual recorded November data for each year, 1981–2025 — sourced from NASA POWER.
The average high in November is around 7.1°C with lows near 1.3°C (mean 4.2°C), based on 45 years of NASA POWER data.
November averages 271 mm of rainfall in Sammamish, a relatively wet time of year. The wettest on record was 581 mm in 2006.
The hottest November reached 19°C in 2020. The coldest dipped to -19.4°C in 1985.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average November temperatures have risen by about 1.8°C. Daytime highs moved from 5.4°C to 7°C and overnight lows from -0.5°C to 1.4°C over the same span.
November is one of the cooler months of the year in Sammamish and a relatively wet time of year, so plan for around 7.1°C daytime highs and 1.3°C at night.
Not quite — November is the 4th coolest month in Sammamish, averaging 4.2°C.
For November in Sammamish, pack warm layers and a jacket for chilly mornings, with typical highs of 7.1°C and lows of 1.3°C. Bring an umbrella or light rain jacket too.
Relative humidity in November averages 91% — quite humid.
Average wind speed in November is 0.3 m/s. The windiest November on record averaged 0.4 m/s (1993).
The wettest November on record was 2006 with 581 mm. On average, November sees 271 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 Sammamish behaves each November, 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 November specifically, along with year-by-year records and how the month has changed over the decades.
