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Dayton, OH Weather on October 9

October 9th in Dayton, OH typically brings pleasant fall weather, with average highs around 70°F and lows near 48°F. Over 55 years of records, the warmest October 9th was in 2007 (79°F average), while the coldest was 2000 (41°F) — a 38°F range across recorded history. Rain or other precipitation has occurred on about 27% of October 9th dates historically, with the wettest October 9th recording 1.12" of rain. The last decade has been 2.5°F warmer on this date compared to 20-30 years ago.

By Weather On This Day|
Avg High
70°F
Avg Low
48°F
Record High
92°F
2007
Record Low
31°F
2012
Dayton, OH on October 9 — Temperature History20°F40°F60°F80°F100°F19801990200020102020HighLow

What to Expect on October 9

Planning for October 9th in Dayton, OH? Great weather for outdoor activities.

October 9 Weather Records for Dayton

  • •The all-time record high for October 9th in Dayton, OH is 92°F, set in 2007.
  • •The coldest October 9th on record dropped to 31°F in 2012.
  • •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 1 of the last 55 years.
  • •Last year (1971), October 9th was 5°F cooler than the long-term average.

Frequently Asked Questions

What was the warmest October 9 ever in Dayton?

The warmest October 9 in Dayton, OH reached 92°F in 2007. That is 22°F above the long-term average high of 70°F.

What was the coldest October 9 ever in Dayton?

The coldest October 9 in Dayton, OH dropped to 31°F in 2012. That is 17°F below the long-term average low of 48°F.

What is the average temperature on October 9 in Dayton?

On October 9, Dayton averages a high of 70°F and a low of 48°F based on 55 years of NOAA weather observations from DAYTON MCD.

How many years of weather data are available for October 9 in Dayton?

We have 55 years of weather records for October 9 in Dayton, OH, 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 Dayton

YearHighLowPrecipSnow
202564°F42°F0"--
202472°F45°F0"--
202362°F44°F0"--
202264°F36°F0"--
202180°F60°F0"--
202081°F50°F0"--
201970°F47°F0"--
201888°F69°F0"--
201768°F57°F1.12"--
201664°F42°F0"--
201581°F56°F0"--
201470°F44°F0.01"--
201369°F42°F0"--
201254°F31°F0"--
201184°F51°F0"--
201086°F43°F0"--
200958°F49°F0.76"--
200867°F48°F0.06"--
200792°F67°F0"--
200679°F47°F0"--
200555°F46°F0"--
200478°F51°F0"--
200379°F47°F0"--
200263°F44°F0"--
200163°F42°F0"--
200049°F33°F0"--
199971°F58°F0.15"--
199859°F46°F0"--
199786°F61°F0"--
199672°F51°F0"--
199567°F45°F0"--
199479°F50°F0.26"--
199380°F55°F0.16"--
199269°F51°F0.49"--
199168°F40°F0"--
199080°F64°F0.23"--
198956°F35°F0"--
198861°F43°F0"--
198758°F38°F0"--
198672°F47°F0"--
198574°F55°F0"--
198468°F62°F0"--
198379°F51°F0"--
198281°F65°F0.04"--
198161°F38°F0"--
198083°F49°F0"--
197964°F49°F0.32"--
197857°F38°F0"--
197763°F44°F0.41"--
197660°F44°F0.08"--
197561°F56°F0.61"--
197461°F38°F0"--
197377°F59°F0"--
197271°F42°F0"--
197165°F47°F0.13"--

Based on 55 years of data from NOAA station: DAYTON MCD

Monthly Climate Averages

Historical temperature and precipitation averages for Dayton, OH, based on 55+ years of weather data.

Warmest MonthJulyAvg High: 86°F / Low: 66°F
Coldest MonthJanuaryAvg High: 36°F / Low: 21°F
Jan
36°/ 21°
💧 0.2"
❄️ 1.1"
Feb
40°/ 24°
💧 0.2"
❄️ 1.1"
Mar
51°/ 32°
💧 0.3"
❄️ 1.2"
Apr
64°/ 42°
💧 0.3"
❄️ 0.6"
May
74°/ 53°
💧 0.3"
Jun
82°/ 62°
💧 0.4"
Jul
86°/ 66°
💧 0.4"
Aug
84°/ 64°
💧 0.3"
Sep
78°/ 57°
💧 0.3"
Oct
65°/ 45°
💧 0.3"
❄️ 1.2"
Nov
52°/ 35°
💧 0.3"
❄️ 0.8"
Dec
41°/ 26°
💧 0.3"
❄️ 1.0"

Temperatures in Fahrenheit. Precipitation and snowfall in inches.

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