Basile Morin / CC BY-SA 4.0
Renton, WA Weather on October 9
October 9th in Renton, WA typically brings mild fall weather, with average highs around 64°F and lows near 47°F. Over 55 years of records, the warmest October 9th was in 1996 (64°F average), while the coldest was 2019 (43°F) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 25% of October 9th dates historically, with the wettest October 9th recording 0.89" of rain. Temperatures on this date have remained relatively stable over the past several decades.
What to Expect on October 9
Planning for October 9th in Renton, WA? Great weather for outdoor activities.
October 9 Weather Records for Renton
- •The all-time record high for October 9th in Renton, WA is 80°F, set in 1996.
- •The coldest October 9th on record dropped to 34°F in 1973.
- •Last year (1971), October 9th was 10°F warmer than the long-term average.
Frequently Asked Questions
What was the warmest October 9 ever in Renton?
The warmest October 9 in Renton, WA reached 80°F in 1996. That is 16°F above the long-term average high of 64°F.
What was the coldest October 9 ever in Renton?
The coldest October 9 in Renton, WA dropped to 34°F in 1973. That is 13°F below the long-term average low of 47°F.
What is the average temperature on October 9 in Renton?
On October 9, Renton averages a high of 64°F and a low of 47°F based on 55 years of NOAA weather observations from RENTON MUNI AP.
How many years of weather data are available for October 9 in Renton?
We have 55 years of weather records for October 9 in Renton, WA, sourced from NOAA's Global Historical Climatology Network. Records include daily high and low temperatures, precipitation, and snowfall data going back to 2025.
October 9 Weather History in Renton
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 64°F | 52°F | 0" | -- |
| 2024 | 61°F | 53°F | 0" | -- |
| 2023 | 65°F | 56°F | 0" | -- |
| 2022 | 75°F | 51°F | 0" | -- |
| 2021 | 59°F | 42°F | 0" | -- |
| 2020 | 69°F | 59°F | 0.36" | -- |
| 2019 | 52°F | 35°F | 0" | -- |
| 2018 | 60°F | 51°F | 0.14" | -- |
| 2017 | 64°F | 41°F | 0" | -- |
| 2016 | 57°F | 50°F | 0" | -- |
| 2015 | 69°F | 53°F | 0.01" | -- |
| 2014 | 66°F | 53°F | 0" | -- |
| 2013 | 58°F | 39°F | 0" | -- |
| 2012 | 61°F | 48°F | 0" | -- |
| 2011 | 61°F | 51°F | 0" | -- |
| 2010 | 63°F | 57°F | 0.89" | -- |
| 2009 | 63°F | 48°F | 0" | -- |
| 2008 | 55°F | 39°F | 0" | -- |
| 2007 | 63°F | 51°F | 0.01" | -- |
| 2006 | 66°F | 48°F | 0" | -- |
| 2005 | 65°F | 49°F | 0" | -- |
| 2004 | 60°F | 51°F | 0.05" | -- |
| 2003 | 59°F | 47°F | 0.17" | -- |
| 2002 | 59°F | 53°F | 0.06" | -- |
| 2001 | 60°F | 45°F | 0" | -- |
| 2000 | 58°F | 54°F | 0.01" | -- |
| 1999 | 64°F | 47°F | 0" | -- |
| 1998 | 58°F | 50°F | 0.08" | -- |
| 1997 | 57°F | 44°F | -- | -- |
| 1996 | 80°F | 49°F | 0" | -- |
| 1995 | 60°F | 50°F | -- | -- |
| 1994 | 67°F | 48°F | 0" | -- |
| 1993 | 73°F | 47°F | 0" | -- |
| 1992 | 63°F | 43°F | 0" | -- |
| 1991 | 71°F | 41°F | 0" | -- |
| 1990 | 61°F | 42°F | 0" | -- |
| 1989 | 71°F | 47°F | 0" | -- |
| 1988 | 66°F | 53°F | 0" | -- |
| 1987 | 73°F | 41°F | 0" | -- |
| 1986 | 65°F | 49°F | 0" | -- |
| 1985 | 57°F | 37°F | 0" | -- |
| 1984 | 67°F | 49°F | 0.62" | -- |
| 1983 | 64°F | 40°F | 0" | -- |
| 1982 | 65°F | 51°F | 0.03" | -- |
| 1981 | 59°F | 44°F | 0" | -- |
| 1980 | 63°F | 43°F | 0" | -- |
| 1979 | 74°F | 50°F | 0" | -- |
| 1978 | 71°F | 45°F | 0" | -- |
| 1977 | 58°F | 46°F | 0" | -- |
| 1976 | 67°F | 46°F | 0" | -- |
| 1975 | 57°F | 50°F | 0.7" | -- |
| 1974 | 64°F | 44°F | 0" | -- |
| 1973 | 59°F | 34°F | 0" | -- |
| 1972 | 72°F | 47°F | 0.11" | -- |
| 1971 | 74°F | 45°F | 0" | -- |
Based on 55 years of data from NOAA station: RENTON MUNI AP
Monthly Climate Averages
Historical temperature and precipitation averages for Renton, WA, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.