Dayton Historic Weather Records

Analyse hottest, coldest, windiest & wettest days

Dayton Weather Trend Graph


Temperature (°C)
.
Months
Max Temp.
Historic Max Temp.
Min Temp.
Historic Min Temp.

Yearly Summary 2026


39°C
Highest Temp
3 Jul. 26

-20°C
Lowest Temp
31 Jan. 26


Seasonal Breakdown

Hottest MonthJuly32.95°C

Coldest MonthJanuary-7.69°C

Wettest MonthMarch12.86mm

Windiest MonthMarch26.5km/h

Frequently Asked Questions


1. What is the hottest month in Dayton historically?

July is historically Dayton's hottest month, with average maximum temperatures around 29°C. During peak heatwave events, the highest recorded temperatures have reached 39°C on 2026-07-03.

2. What is the coldest month in Dayton historically?

January is Dayton's coldest month, with average minimum temperatures around -6°C. The all-time record low of -26°C was recorded on 2014-01-28.

3. What is the average annual rainfall in Dayton over the past 17 years?

Dayton's average annual rainfall is approximately 1248.6mm, based on records spanning 17 years.

4. How many rainy days does Dayton experience on average per year?

Dayton historically records approximately 185 rainy days per year. June has the highest number of rain days at an average of 17.5 days.

5. What is the all-time highest temperature ever recorded in Dayton?

The all-time highest temperature recorded in Dayton is 39°C on 2026-07-03.

6. What is the all-time lowest temperature ever recorded in Dayton?

The all-time lowest temperature recorded in Dayton is -26°C on 2014-01-28.

7. What is the windiest time of year in Dayton historically?

Dayton experiences its strongest winds during March. The historic gust record of 49.7 kph was recorded on 2026-03-11.

8. What is the highest and lowest humidity in Dayton during a year?

Usually, Dayton's humidity peaks in February at around 80.6% and drops to its lowest in October at approximately 72.4%.