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Meridian, ID Weather on October 9
October 9th in Meridian, ID typically brings pleasant fall weather, with average highs around 70°F and lows near 41°F — a 29°F daily swing. Over 55 years of records, the warmest October 9th was in 2015 (73°F average), while the coldest was 1985 (35°F) — a 38°F range across recorded history. Rain or other precipitation has occurred on about 15% of October 9th dates historically, with the wettest October 9th recording 0.95" of rain. The last decade has been 2.2°F warmer on this date compared to 20-30 years ago.
What to Expect on October 9
Planning for October 9th in Meridian, ID? Great weather for outdoor activities.
October 9 Weather Records for Meridian
- •The all-time record high for October 9th in Meridian, ID is 90°F, set in 2015.
- •The coldest October 9th on record dropped to 19°F in 1985.
- •Temperatures have reached 90°F or higher on October 9th in 1 of the last 55 years.
- •A freeze (32°F or below) has occurred on October 9th in 6 of the last 55 years.
- •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 Meridian?
The warmest October 9 in Meridian, ID reached 90°F in 2015. That is 20°F above the long-term average high of 70°F.
What was the coldest October 9 ever in Meridian?
The coldest October 9 in Meridian, ID dropped to 19°F in 1985. That is 22°F below the long-term average low of 41°F.
What is the average temperature on October 9 in Meridian?
On October 9, Meridian averages a high of 70°F and a low of 41°F based on 55 years of NOAA weather observations from KUNA.
How many years of weather data are available for October 9 in Meridian?
We have 55 years of weather records for October 9 in Meridian, ID, 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 Meridian
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 78°F | 51°F | 0" | -- |
| 2024 | 82°F | 51°F | 0" | -- |
| 2023 | 86°F | 55°F | 0.02" | -- |
| 2022 | 77°F | 50°F | 0" | -- |
| 2021 | 62°F | 44°F | 0.01" | -- |
| 2020 | 78°F | 49°F | 0" | -- |
| 2019 | 49°F | 33°F | 0" | -- |
| 2018 | 54°F | 43°F | 0.95" | -- |
| 2017 | 59°F | 31°F | 0" | -- |
| 2016 | 80°F | 52°F | 0" | -- |
| 2015 | 90°F | 56°F | 0" | -- |
| 2014 | 75°F | 48°F | 0" | -- |
| 2013 | 61°F | 36°F | 0" | -- |
| 2012 | 71°F | 40°F | 0" | -- |
| 2011 | 70°F | 42°F | 0" | -- |
| 2010 | 71°F | 49°F | 0" | -- |
| 2009 | 59°F | 36°F | 0" | -- |
| 2008 | 53°F | 31°F | 0" | -- |
| 2007 | 83°F | 49°F | 0" | -- |
| 2006 | 62°F | 42°F | 0.04" | -- |
| 2005 | 64°F | 43°F | 0.02" | -- |
| 2004 | 72°F | 45°F | 0" | -- |
| 2003 | 64°F | 46°F | 0" | -- |
| 2002 | 74°F | 45°F | 0" | -- |
| 2001 | 56°F | 34°F | 0" | -- |
| 2000 | 85°F | 48°F | 0" | -- |
| 1999 | 70°F | 47°F | 0" | -- |
| 1998 | 64°F | 41°F | 0" | -- |
| 1997 | 63°F | 44°F | 0.17" | -- |
| 1996 | 88°F | 35°F | 0" | -- |
| 1995 | 64°F | 36°F | 0" | -- |
| 1994 | 80°F | 39°F | 0" | -- |
| 1993 | 68°F | 34°F | 0" | -- |
| 1992 | 66°F | 37°F | 0" | -- |
| 1991 | 78°F | 41°F | 0" | -- |
| 1990 | 69°F | 36°F | 0" | -- |
| 1989 | 75°F | 43°F | 0" | -- |
| 1988 | 83°F | 38°F | 0" | -- |
| 1987 | 77°F | 40°F | 0" | -- |
| 1986 | 73°F | 36°F | 0" | -- |
| 1985 | 50°F | 19°F | 0" | -- |
| 1984 | 75°F | 48°F | 0" | -- |
| 1983 | 70°F | 53°F | 0.06" | -- |
| 1982 | 59°F | 31°F | 0" | -- |
| 1981 | 64°F | 40°F | 0" | -- |
| 1980 | 74°F | 46°F | 0" | -- |
| 1979 | 75°F | 36°F | 0" | -- |
| 1978 | 80°F | 37°F | 0" | -- |
| 1977 | 62°F | 29°F | 0" | -- |
| 1976 | 82°F | 35°F | 0" | -- |
| 1975 | 66°F | 37°F | 0" | -- |
| 1974 | 66°F | 48°F | 0.39" | -- |
| 1973 | 59°F | 32°F | 0" | -- |
| 1972 | 69°F | 42°F | 0" | -- |
| 1971 | 80°F | 41°F | 0" | -- |
Based on 55 years of data from NOAA station: KUNA
Monthly Climate Averages
Historical temperature and precipitation averages for Meridian, ID, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.