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Climate Statistics · City

Normal annual rainfall in Dayton

1991–2020 · 1 data point Updated Oct 22, 2026
Climate · Dayton

Source: NOAA National Centers for Environmental Information — GHCN-Daily, 1991–2020

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Latest value · 1991–2020 41.3 in
Weather through the year long-term average 1991–2020 · Dayton Intl Ap weather station, 17 km away
36° 21°
Jan
40° 23°
Feb
50° 32°
Mar
63° 42°
Apr
73° 53°
May
81° 62°
Jun
84° 65°
Jul
83° 63°
Aug
77° 56°
Sep
65° 45°
Oct
51° 34°
Nov
40° 26°
Dec
3.1
2.4
3.5
4.5
4.5
4.1
3.9
3.0
3.3
2.9
3.1
3.1
High and low, °F Precipitation, inches

Source: NOAA National Centers for Environmental Information — GHCN-Daily, 1991–2020

What it means

How much rain and snow (as water) falls in a typical year.

How it is calculated

Sum of the twelve monthly precipitation normals at the nearest weather station: 1991–2020, or the latest ten years; months with a few missing days are scaled up.