Dayton Average Rainfall by Month

This page shows the average precipitation (including snowfall) in each month of the year in Dayton, Tennessee. It is based on NOAA data for the years 1991–2020.

Average temperature by month

What's the Rainiest Month in Dayton?

In Dayton, July has the greatest precipitation of any month. On average, Dayton gets 5.4 inches of precipitation in July.

July is also the month where rain is most common. 42.7% of days in July will have at least some rain.

What's the Driest Month in Dayton?

In Dayton, October has the least precipitation of any month. On average, Dayton gets 3.60 inches of precipitation in October.

October is also the month where rain is least common. 27.2% of days in October will have measurable rain.

Month	Precipitation	% Chance
January	5.20 in	35.3
February	5.05 in	37.0
March	5.27 in	37.1
April	5.25 in	34.8
May	4.90 in	35.9
June	4.32 in	38.9
July	5.41 in	42.7
August	3.81 in	35.3
September	4.90 in	30.4
October	3.60 in	27.2
November	4.88 in	29.0
December	5.85 in	35.7
Year	57.76 in	34.8

Weather Station Details

Years	Station	Coordinates
1956–2024	Dayton 2SE	location