WETTESTSINCE
Ohio · precipitation record 1893–2026

Dayton, OH

IN 90 DAYS · 2026
WETTEST IN 90 DAYS SINCE 2017
15.9in
17th wettest of 133 years · normal 10.84"
📖 Dayton's full Precipitation Almanac →

Accumulation

TODAY
0.0in
no rain yet of 131 yrs
MONTH TO DATE
2.99in
58th driest of 132 yrs
91% of normal
LAST 90 DAYS
15.9in
17th wettest of 133 yrs
147% of normal
YEAR TO DATE
28.38in
27th wettest of 133 yrs
122% of normal

Extremes & Streaks

Biggest Day on Record

4.16in
on Jan 21, 1959 · in 134 years

Dry Streak

0days
current run under 0.01" · longest ever 40 days (to Sep 27, 1908)

Wet Streak

1days
consecutive days with rain · longest ever 14 days

Year to Date vs Normal

122%
28.38" of a normal 23.19" · wettest 37.04" (1996) · driest 12.88" (1934)

Wettest & Driest Years

The extremes of a 129-year record (1896–2025) — full calendar-year totals. The long-run average is 38.16" a year.

Wettest Years on Record

1199059.75in
2201156.72in
3199654.65in
4199352.23in
5199551.26in

Driest Years on Record

1193423.74in
2196324.21in
3198724.7in
4197625.63in
5190125.99in

Rainfall by Month

The seasonal rhythm — each month's normal precipitation, with this year's totals in blue. Where the blue bar clears the band, the month ran wetter than usual.
J
F
M
A
M
J
J
A
S
O
N
D
Normal (median)This year
Normally wettest in May (~3.65") and driest in Feb (~2.1"). Wettest calendar month ever: Jan 1937, 12.41".

This Day in History · Rainfall

Every year's rainfall on each of the next 7 dates at Dayton — toggle a day below. The tallest bar (ringed) is the wettest on record for that date.

Wettest Jul 28 ever

1.66in
set in 1896

Rain on Jul 28

34%
of 131 years had measurable rain
1894: 0.00″1895: 0.00″1896: 1.66″1897: 0.00″1898: 0.46″1899: 0.14″1900: 0.00″1901: 0.00″1902: 0.74″1903: 0.00″1904: 0.06″1905: 0.00″1906: 0.28″1907: 0.00″1908: 0.03″1909: 0.00″1910: 0.13″1912: 0.00″1913: 0.00″1914: 0.00″1915: 0.54″1916: 0.00″1917: 0.00″1918: 0.01″1919: 0.00″1920: 0.00″1921: 0.27″1922: 0.00″1923: 0.02″1924: 0.00″1925: 0.00″1926: 0.00″1927: 0.23″1928: 0.00″1929: 0.00″1930: 0.00″1931: 0.00″1932: 0.07″1933: 0.00″1934: 0.00″1935: 0.06″1936: 0.06″1937: 0.00″1938: 0.18″1939: 0.01″1940: 0.28″1941: 0.00″1942: 0.00″1943: 0.52″1944: 0.44″1945: 0.48″1946: 0.00″1947: 0.00″1948: 0.00″1949: 0.00″1950: 0.00″1951: 0.00″1952: 0.10″1953: 0.00″1954: 0.00″1955: 0.09″1956: 1.65″1957: 0.00″1958: 0.84″1959: 0.32″1960: 0.00″1961: 0.02″1962: 0.00″1963: 0.08″1964: 0.23″1965: 0.10″1966: 0.74″1967: 0.31″1968: 0.00″1969: 0.00″1970: 0.00″1971: 0.65″1972: 0.00″1973: 0.02″1974: 0.00″1975: 0.00″1976: 0.03″1977: 0.00″1978: 0.00″1979: 1.30″1980: 0.03″1981: 0.00″1982: 0.04″1983: 0.00″1984: 0.00″1985: 0.00″1986: 0.00″1987: 0.00″1988: 0.00″1989: 0.00″1990: 0.00″1991: 0.00″1992: 0.00″1993: 0.00″1994: 0.00″1995: 0.00″1996: 0.00″1997: 0.00″1998: 0.00″1999: 0.25″2000: 0.00″2001: 0.04″2002: 0.00″2003: 0.08″2004: 0.00″2005: 0.00″2006: 0.32″2007: 0.00″2008: 0.00″2009: 0.00″2010: 0.01″2011: 0.00″2012: 0.00″2013: 0.00″2014: 0.00″2015: 0.00″2016: 0.00″2017: 0.00″2018: 0.00″2019: 0.00″2020: 0.00″2021: 0.00″2022: 0.01″2023: 0.00″2024: 0.00″2025: 0.00″0″1″2″1900191019201930194019501960197019801990200020102020

This Year's Rainfall

Dayton's cumulative rainfall so far this year against its own record — the normal accumulation, and the wettest & driest years to date. The bright line is the running total; where it rides the band tells the story at a glance.
Dayton, OH — cumulative rainfall this year vs the record
Download year chart

Rainfall Calendar

Dayton's entire daily record as one heatmap — each row a year, each cell a day, shaded by that day's rainfall. Dry spells read as dark blocks, wet seasons as brighter bands; the whole climate at a glance.
Dayton, OH — daily rainfall every day on record
Download calendar

Sun & Location

Sun & Daylight Today

Sunrise4:32 AM
Sunset6:54 PM
Solar noon11:43 AM
Daylight14h 21m
Local standard time (no DST), level horizon.

Location

39.91°N, 84.22°W

Nearby Stations

Wilmington, OH40 mi SECincinnati, OH64 mi SWColumbus, OH71 mi EFort Wayne, IN90 mi NWMansfield, OH109 mi NEIndianapolis, IN110 mi W

Share Card

Dayton, OH precipitation share card
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