Piqua Weather Records (USC00336645)

Record envelope, standing records and threshold days for Piqua (USC00336645), Ohio, United States, with 134 years of record.

Key Facts for Piqua

Piqua (USC00336645) is a weather station in Ohio, United States at 40.15 latitude and -84.24 longitude, 262 m (861 ft) above sea level.
The station reports from 1893 to 2026, 134 years of record.
368 records set at Piqua still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Piqua set a daily record precipitation of 43.2 mm (1.7 in) on 18 September 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

Location: Ohio, United States, 40.15 latitude, -84.24 longitude.
Elevation: 262 m (861 ft).
Period of record: 1893 to 2026, 134 years.
Eligible elements: prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Piqua. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Piqua, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	36.7 C (98.1 F)	14.4 C (57.9 F)	n/a	n/a
Aug	33.9 C (93.0 F)	9.4 C (48.9 F)	n/a	n/a
Sep	35.0 C (95.0 F)	2.2 C (36.0 F)	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Which Years Hold Standing Records

368 standing records

368 records at Piqua still stand. 1893 holds the most, with 368.

All-Time Record Progression

5 new records

5 all-time records were set at Piqua between 8 August 1995 and 23 December 2004. Each dot is a new record.

When Piqua set new all-time records
Date	Kind	Detail
1995-08-08	Record daily precipitation	Record daily precipitation 199.6 mm (7.9 in)
1996-01-08	Record snow depth	Record snow depth 40.6 cm (16.0 in)
1996-01-09	Record snow depth	Record snow depth 43.2 cm (17.0 in)
1996-01-12	Record snow depth	Record snow depth 45.7 cm (18.0 in)
2004-12-23	Record snow depth	Record snow depth 50.8 cm (20.0 in)

Wettest Day of Each Month

Aug: 199.6 mm (7.9 in)

The wettest day on record for each calendar month at Piqua. The most was 199.6 mm (7.9 in) on 8 August 1995.

Record daily precipitation for each month at Piqua
Month	Record daily precipitation (mm)	Date
Jan	70.1 mm (2.8 in)	6 January 2005
Feb	49.5 mm (1.9 in)	3 February 2022
Mar	155.7 mm (6.1 in)	25 March 1913
Apr	103.6 mm (4.1 in)	26 April 1989
May	62.0 mm (2.4 in)	25 May 1995
Jun	129.0 mm (5.1 in)	26 June 1971
Jul	97.3 mm (3.8 in)	31 July 1942
Aug	199.6 mm (7.9 in)	8 August 1995
Sep	89.9 mm (3.5 in)	8 September 2020
Oct	80.0 mm (3.1 in)	28 October 2015
Nov	60.5 mm (2.4 in)	16 November 1955
Dec	77.2 mm (3.0 in)	22 December 2013

Period of Record Coverage

1893 to 1893

1 years of record at Piqua, 1893 to 1893. 1 years have data for under 90 percent of days and are left out of rankings: 1893.

Latest Records

Latest records at Piqua
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 September 2026	Piqua, US	daily rain (Provisional)	43.2 mm (1.7 in)	0.5 mm (0.02 in)	76 years	33 of 100 (Routine)
2 August 2026	Piqua, US	daily rain	73.7 mm (2.9 in)	17.6 mm (0.7 in)	104 years	53 of 100 (Notable)
6 May 2026	Piqua, US	daily rain	29.7 mm (1.2 in)	1.8 mm (0.07 in)	8 years	13 of 100 (Routine)
28 April 2026	Piqua, US	daily rain	34.3 mm (1.4 in)	9.4 mm (0.37 in)	3 years	19 of 100 (Routine)
27 March 2026	Piqua, US	daily rain	60.2 mm (2.4 in)	25.7 mm (1.0 in)	92 years	62 of 100 (Major)
7 February 2026	Piqua, US	daily snowfall	7.6 cm (3.0 in)	2.5 cm (1.0 in)	40 years	29 of 100 (Routine)
27 January 2026	Piqua, US	daily snow depth	22.9 cm (9.0 in)	2.6 cm (1.0 in)	48 years	28 of 100 (Routine)
26 January 2026	Piqua, US	daily snow depth	25.4 cm (10.0 in)	2.5 cm (1.0 in)	48 years	27 of 100 (Routine)
2 December 2025	Piqua, US	daily snowfall	11.4 cm (4.5 in)	1.2 cm (0.5 in)	59 years	30 of 100 (Routine)
2 December 2025	Piqua, US	daily snow depth (Tie)	12.7 cm (5.0 in)	tie	51 years	6 of 100 (Routine)
11 November 2025	Piqua, US	daily snow depth (Tie)	2.5 cm (1.0 in)	tie	92 years	9 of 100 (Routine)
8 October 2025	Piqua, US	daily rain	26.7 mm (1.1 in)	0.5 mm (0.02 in)	95 years	38 of 100 (Notable)
5 April 2025	Piqua, US	daily rain	62.0 mm (2.4 in)	10.2 mm (0.4 in)	14 years	24 of 100 (Routine)
3 April 2025	Piqua, US	daily rain	30.7 mm (1.2 in)	4.0 mm (0.16 in)	68 years	34 of 100 (Routine)
16 February 2025	Piqua, US	daily rain	31.8 mm (1.3 in)	3.9 mm (0.15 in)	35 years	25 of 100 (Routine)
11 January 2025	Piqua, US	daily snowfall	8.4 cm (3.3 in)	0.3 cm (0.1 in)	32 years	19 of 100 (Routine)
24 August 2023	Piqua, US	daily rain	32.3 mm (1.3 in)	15.3 mm (0.6 in)	96 years	49 of 100 (Notable)
28 April 2023	Piqua, US	daily rain	24.9 mm (1.0 in)	3.8 mm (0.15 in)	64 years	20 of 100 (Routine)
4 March 2023	Piqua, US	daily rain	64.0 mm (2.5 in)	36.8 mm (1.4 in)	14 years	50 of 100 (Notable)
13 January 2023	Piqua, US	daily rain	30.2 mm (1.2 in)	7.8 mm (0.31 in)	59 years	36 of 100 (Notable)

Extremes by Year

1893 to 2026

Yearly extremes at Piqua: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	36.7 C (98.1 F)	1893	36.7 C (98.1 F)	1
Coldest night (TNn)	2.2 C (36.0 F)	1893	2.2 C (36.0 F)	1
Wettest day (Rx1day)	199.6 mm (7.9 in)	1995	59.3 mm (2.3 in)	116
Wettest five days (Rx5day)	324.3 mm (12.8 in)	1995	89.9 mm (3.5 in)	115
Longest dry spell (CDD)	67 days	1963	17 days	115

Hottest day (TXx)

The hottest day of the year at Piqua, 1893 to 2026. The record is 36.7 C (98.1 F) in 1893, marked on the chart; the median year is 36.7 C (98.1 F).

Hottest day (TXx) at Piqua by year
Year	Hottest day (TXx)
1893	36.7 C (98.1 F)
1908	n/a
1910	n/a
1911	n/a
1912	n/a
1913	n/a
1914	n/a
1915	n/a
1916	n/a
1917	n/a
1918	n/a
1919	n/a
1920	n/a
1921	n/a
1922	n/a
1923	n/a
1924	n/a
1925	n/a
1926	n/a
1927	n/a
1928	n/a
1929	n/a
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	n/a
2012	n/a
2013	n/a
2014	n/a
2015	n/a
2016	n/a
2017	n/a
2018	n/a
2019	n/a
2020	n/a
2021	n/a
2022	n/a
2023	n/a
2024	n/a
2025	n/a
2026	n/a

Coldest night (TNn)

The coldest night of the year at Piqua, 1893 to 2026. The record is 2.2 C (36.0 F) in 1893, marked on the chart; the median year is 2.2 C (36.0 F).

Coldest night (TNn) at Piqua by year
Year	Coldest night (TNn)
1893	2.2 C (36.0 F)
1908	n/a
1910	n/a
1911	n/a
1912	n/a
1913	n/a
1914	n/a
1915	n/a
1916	n/a
1917	n/a
1918	n/a
1919	n/a
1920	n/a
1921	n/a
1922	n/a
1923	n/a
1924	n/a
1925	n/a
1926	n/a
1927	n/a
1928	n/a
1929	n/a
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	n/a
2012	n/a
2013	n/a
2014	n/a
2015	n/a
2016	n/a
2017	n/a
2018	n/a
2019	n/a
2020	n/a
2021	n/a
2022	n/a
2023	n/a
2024	n/a
2025	n/a
2026	n/a

Wettest day (Rx1day)

The wettest day of the year at Piqua, 1893 to 2026. The record is 199.6 mm (7.9 in) in 1995, marked on the chart; the median year is 59.3 mm (2.3 in).

Wettest day (Rx1day) at Piqua by year
Year	Wettest day (Rx1day)
1893	27.9 mm (1.1 in)
1908	114.3 mm (4.5 in)
1910	71.1 mm (2.8 in)
1911	69.9 mm (2.8 in)
1912	58.2 mm (2.3 in)
1913	155.7 mm (6.1 in)
1914	48.3 mm (1.9 in)
1915	72.1 mm (2.8 in)
1916	87.9 mm (3.5 in)
1917	61.5 mm (2.4 in)
1918	36.3 mm (1.4 in)
1919	43.7 mm (1.7 in)
1920	63.5 mm (2.5 in)
1921	56.1 mm (2.2 in)
1922	55.9 mm (2.2 in)
1923	50.3 mm (2.0 in)
1924	97.8 mm (3.9 in)
1925	66.8 mm (2.6 in)
1926	56.4 mm (2.2 in)
1927	46.7 mm (1.8 in)
1928	35.6 mm (1.4 in)
1929	58.9 mm (2.3 in)
1930	47.5 mm (1.9 in)
1931	79.8 mm (3.1 in)
1932	59.4 mm (2.3 in)
1933	55.4 mm (2.2 in)
1934	83.3 mm (3.3 in)
1935	42.2 mm (1.7 in)
1936	33.0 mm (1.3 in)
1937	57.7 mm (2.3 in)
1938	61.0 mm (2.4 in)
1939	57.9 mm (2.3 in)
1940	60.7 mm (2.4 in)
1941	38.4 mm (1.5 in)
1942	97.3 mm (3.8 in)
1943	47.2 mm (1.9 in)
1944	39.6 mm (1.6 in)
1945	46.0 mm (1.8 in)
1946	45.7 mm (1.8 in)
1947	65.3 mm (2.6 in)
1948	49.3 mm (1.9 in)
1949	123.4 mm (4.9 in)
1953	53.1 mm (2.1 in)
1954	42.2 mm (1.7 in)
1955	67.1 mm (2.6 in)
1956	45.2 mm (1.8 in)
1957	69.6 mm (2.7 in)
1958	74.4 mm (2.9 in)
1959	61.7 mm (2.4 in)
1960	37.8 mm (1.5 in)
1961	60.5 mm (2.4 in)
1962	42.4 mm (1.7 in)
1963	41.7 mm (1.6 in)
1964	59.2 mm (2.3 in)
1965	42.9 mm (1.7 in)
1966	67.6 mm (2.7 in)
1967	58.9 mm (2.3 in)
1968	42.2 mm (1.7 in)
1969	90.2 mm (3.6 in)
1970	51.3 mm (2.0 in)
1971	129.0 mm (5.1 in)
1972	47.0 mm (1.9 in)
1973	90.7 mm (3.6 in)
1974	80.8 mm (3.2 in)
1975	49.0 mm (1.9 in)
1976	30.5 mm (1.2 in)
1977	74.4 mm (2.9 in)
1978	76.2 mm (3.0 in)
1979	48.3 mm (1.9 in)
1980	85.9 mm (3.4 in)
1981	51.3 mm (2.0 in)
1982	41.1 mm (1.6 in)
1983	57.2 mm (2.3 in)
1984	36.6 mm (1.4 in)
1985	52.8 mm (2.1 in)
1986	59.9 mm (2.4 in)
1987	65.5 mm (2.6 in)
1988	39.9 mm (1.6 in)
1989	103.6 mm (4.1 in)
1990	71.6 mm (2.8 in)
1991	34.8 mm (1.4 in)
1992	61.5 mm (2.4 in)
1993	50.3 mm (2.0 in)
1994	33.8 mm (1.3 in)
1995	199.6 mm (7.9 in)
1996	73.7 mm (2.9 in)
1997	65.5 mm (2.6 in)
1998	81.5 mm (3.2 in)
1999	59.7 mm (2.4 in)
2000	63.2 mm (2.5 in)
2001	78.7 mm (3.1 in)
2002	46.2 mm (1.8 in)
2003	78.5 mm (3.1 in)
2004	51.8 mm (2.0 in)
2005	82.3 mm (3.2 in)
2006	70.1 mm (2.8 in)
2007	53.1 mm (2.1 in)
2008	67.8 mm (2.7 in)
2009	58.7 mm (2.3 in)
2010	44.5 mm (1.8 in)
2011	65.5 mm (2.6 in)
2012	64.8 mm (2.6 in)
2013	77.2 mm (3.0 in)
2014	86.1 mm (3.4 in)
2015	80.0 mm (3.1 in)
2016	33.5 mm (1.3 in)
2017	50.8 mm (2.0 in)
2018	64.3 mm (2.5 in)
2019	52.3 mm (2.1 in)
2020	89.9 mm (3.5 in)
2021	69.9 mm (2.8 in)
2022	49.5 mm (1.9 in)
2023	64.0 mm (2.5 in)
2024	44.7 mm (1.8 in)
2025	62.0 mm (2.4 in)
2026	73.7 mm (2.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Piqua, 1893 to 2026. The record is 324.3 mm (12.8 in) in 1995, marked on the chart; the median year is 89.9 mm (3.5 in).

Wettest five days (Rx5day) at Piqua by year
Year	Wettest five days (Rx5day)
1893	2.5 mm (0.10 in)
1908	n/a
1910	173.7 mm (6.8 in)
1911	86.4 mm (3.4 in)
1912	72.9 mm (2.9 in)
1913	266.7 mm (10.5 in)
1914	67.4 mm (2.7 in)
1915	93.7 mm (3.7 in)
1916	90.2 mm (3.6 in)
1917	79.5 mm (3.1 in)
1918	60.4 mm (2.4 in)
1919	88.2 mm (3.5 in)
1920	110.2 mm (4.3 in)
1921	104.3 mm (4.1 in)
1922	72.9 mm (2.9 in)
1923	87.1 mm (3.4 in)
1924	137.7 mm (5.4 in)
1925	99.9 mm (3.9 in)
1926	103.1 mm (4.1 in)
1927	92.5 mm (3.6 in)
1928	99.4 mm (3.9 in)
1929	76.5 mm (3.0 in)
1930	69.9 mm (2.8 in)
1931	138.9 mm (5.5 in)
1932	81.5 mm (3.2 in)
1933	87.2 mm (3.4 in)
1934	118.6 mm (4.7 in)
1935	49.1 mm (1.9 in)
1936	43.9 mm (1.7 in)
1937	112.8 mm (4.4 in)
1938	98.7 mm (3.9 in)
1939	69.5 mm (2.7 in)
1940	92.5 mm (3.6 in)
1941	85.9 mm (3.4 in)
1942	107.5 mm (4.2 in)
1943	104.9 mm (4.1 in)
1944	85.9 mm (3.4 in)
1945	104.4 mm (4.1 in)
1946	65.0 mm (2.6 in)
1947	101.4 mm (4.0 in)
1948	72.4 mm (2.9 in)
1949	152.4 mm (6.0 in)
1953	92.4 mm (3.6 in)
1954	70.9 mm (2.8 in)
1955	120.9 mm (4.8 in)
1956	60.9 mm (2.4 in)
1957	109.2 mm (4.3 in)
1958	189.4 mm (7.5 in)
1959	97.0 mm (3.8 in)
1960	47.0 mm (1.9 in)
1961	80.1 mm (3.2 in)
1962	48.7 mm (1.9 in)
1963	74.0 mm (2.9 in)
1964	121.7 mm (4.8 in)
1965	70.1 mm (2.8 in)
1966	89.4 mm (3.5 in)
1967	70.9 mm (2.8 in)
1968	85.6 mm (3.4 in)
1969	90.2 mm (3.6 in)
1970	63.8 mm (2.5 in)
1971	129.0 mm (5.1 in)
1972	82.0 mm (3.2 in)
1973	121.4 mm (4.8 in)
1974	122.9 mm (4.8 in)
1975	75.7 mm (3.0 in)
1976	53.1 mm (2.1 in)
1977	75.4 mm (3.0 in)
1978	94.2 mm (3.7 in)
1979	73.4 mm (2.9 in)
1980	108.3 mm (4.3 in)
1981	95.2 mm (3.7 in)
1982	69.2 mm (2.7 in)
1983	82.1 mm (3.2 in)
1984	56.0 mm (2.2 in)
1985	108.7 mm (4.3 in)
1986	129.4 mm (5.1 in)
1987	101.6 mm (4.0 in)
1988	72.6 mm (2.9 in)
1989	115.4 mm (4.5 in)
1990	100.2 mm (3.9 in)
1991	90.7 mm (3.6 in)
1992	131.3 mm (5.2 in)
1993	149.7 mm (5.9 in)
1994	88.1 mm (3.5 in)
1995	324.3 mm (12.8 in)
1996	100.6 mm (4.0 in)
1997	91.4 mm (3.6 in)
1998	124.1 mm (4.9 in)
1999	75.0 mm (3.0 in)
2000	89.2 mm (3.5 in)
2001	93.9 mm (3.7 in)
2002	52.8 mm (2.1 in)
2003	216.7 mm (8.5 in)
2004	75.7 mm (3.0 in)
2005	153.5 mm (6.0 in)
2006	77.0 mm (3.0 in)
2007	86.0 mm (3.4 in)
2008	70.3 mm (2.8 in)
2009	58.7 mm (2.3 in)
2010	71.7 mm (2.8 in)
2011	96.3 mm (3.8 in)
2012	75.0 mm (3.0 in)
2013	128.0 mm (5.0 in)
2014	98.0 mm (3.9 in)
2015	97.0 mm (3.8 in)
2016	54.3 mm (2.1 in)
2017	70.5 mm (2.8 in)
2018	102.1 mm (4.0 in)
2019	84.1 mm (3.3 in)
2020	89.9 mm (3.5 in)
2021	87.7 mm (3.5 in)
2022	65.8 mm (2.6 in)
2023	83.3 mm (3.3 in)
2024	94.5 mm (3.7 in)
2025	117.6 mm (4.6 in)
2026	109.8 mm (4.3 in)

Longest dry spell (CDD)

The longest dry spell of the year at Piqua, 1893 to 2026. The record is 67 days in 1963, marked on the chart; the median year is 17 days.

Longest dry spell (CDD) at Piqua by year
Year	Longest dry spell (CDD)
1893	15 days
1908	n/a
1910	14 days
1911	19 days
1912	15 days
1913	19 days
1914	27 days
1915	23 days
1916	18 days
1917	25 days
1918	16 days
1919	17 days
1920	23 days
1921	12 days
1922	17 days
1923	22 days
1924	10 days
1925	17 days
1926	13 days
1927	18 days
1928	10 days
1929	14 days
1930	12 days
1931	18 days
1932	18 days
1933	11 days
1934	22 days
1935	16 days
1936	26 days
1937	14 days
1938	19 days
1939	16 days
1940	14 days
1941	20 days
1942	15 days
1943	20 days
1944	16 days
1945	16 days
1946	17 days
1947	15 days
1948	19 days
1949	21 days
1953	27 days
1954	13 days
1955	29 days
1956	16 days
1957	22 days
1958	15 days
1959	24 days
1960	19 days
1961	14 days
1962	18 days
1963	67 days
1964	27 days
1965	21 days
1966	16 days
1967	20 days
1968	20 days
1969	25 days
1970	21 days
1971	13 days
1972	14 days
1973	13 days
1974	17 days
1975	15 days
1976	17 days
1977	29 days
1978	14 days
1979	15 days
1980	14 days
1981	18 days
1982	20 days
1983	26 days
1984	15 days
1985	24 days
1986	17 days
1987	22 days
1988	24 days
1989	13 days
1990	13 days
1991	15 days
1992	17 days
1993	17 days
1994	14 days
1995	25 days
1996	19 days
1997	19 days
1998	14 days
1999	17 days
2000	18 days
2001	16 days
2002	11 days
2003	11 days
2004	18 days
2005	14 days
2006	14 days
2007	17 days
2008	22 days
2009	17 days
2010	20 days
2011	12 days
2012	20 days
2013	15 days
2014	16 days
2015	20 days
2016	18 days
2017	15 days
2018	14 days
2019	20 days
2020	15 days
2021	14 days
2022	23 days
2023	17 days
2024	34 days
2025	17 days
2026	13 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Rainfall Return Levels

100 years, 1912 to 2025

A day with at least 57.2 mm (2.3 in) of rain is expected about once in 2 years. A day with at least 150.3 mm (5.9 in) of rain is expected about once in 100 years.

Rainfall return levels at Piqua: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	57.2 mm (2.3 in)
5 years	76.1 mm (3.0 in)
10 years	90.7 mm (3.6 in)
25 years	112.0 mm (4.4 in)
50 years	130.1 mm (5.1 in)
100 years	150.3 mm (5.9 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 100 years of values from 1912 to 2025.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 199.6 mm (7.9 in) in 1995; 155.7 mm (6.1 in) in 1913; 129.0 mm (5.1 in) in 1971.

Download the Data

Data for Piqua standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Piqua threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-14. Last revised 14 October 2026 (2026-10-14).