Edwardsville 2 W Weather Records (USC00112679)

Record envelope, standing records and threshold days for Edwardsville 2 W (USC00112679), Illinois, United States, with 134 years of record.

Key Facts for Edwardsville 2 W

Edwardsville 2 W (USC00112679) is a weather station in Illinois, United States at 38.81 latitude and -90.00 longitude, 142 m (465 ft) above sea level.
The station reports from 1893 to 2026, 134 years of record.
1,142 records set at Edwardsville 2 W still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Edwardsville 2 W set a daily record precipitation of 39.4 mm (1.6 in) on 25 July 2026.

About the Station

Location: Illinois, United States, 38.81 latitude, -90.00 longitude.
Elevation: 142 m (465 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 Edwardsville 2 W. 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 Edwardsville 2 W, 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	11.7 C (53.1 F)	-19.4 C (-2.9 F)	n/a	n/a
Mar	32.2 C (90.0 F)	-12.2 C (10.0 F)	n/a	n/a
Apr	32.2 C (90.0 F)	1.7 C (35.1 F)	n/a	n/a
May	34.4 C (93.9 F)	6.7 C (44.1 F)	n/a	n/a
Jun	38.3 C (100.9 F)	8.9 C (48.0 F)	n/a	n/a
Jul	37.2 C (99.0 F)	13.9 C (57.0 F)	n/a	n/a
Aug	39.4 C (102.9 F)	12.2 C (54.0 F)	n/a	n/a
Sep	34.4 C (93.9 F)	8.3 C (46.9 F)	n/a	n/a
Oct	27.2 C (81.0 F)	-2.8 C (27.0 F)	n/a	n/a
Nov	28.9 C (84.0 F)	-8.3 C (17.1 F)	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Which Years Hold Standing Records

1,142 standing records

1,142 records at Edwardsville 2 W still stand. 1987 holds the most, with 707.

All-Time Record Progression

4 new records

4 all-time records were set at Edwardsville 2 W between 6 November 1951 and 1 February 1982. Each dot is a new record.

When Edwardsville 2 W set new all-time records
Date	Kind	Detail
1951-11-06	Record daily snowfall	Record daily snowfall 37.6 cm (14.8 in)
1982-01-31	Record daily snowfall	Record daily snowfall 38.1 cm (15.0 in)
1982-01-31	Record snow depth	Record snow depth 38.1 cm (15.0 in)
1982-02-01	Record snow depth	Record snow depth 43.2 cm (17.0 in)

Wettest Day of Each Month

Aug: 179.1 mm (7.1 in)

The wettest day on record for each calendar month at Edwardsville 2 W. The most was 179.1 mm (7.1 in) on 20 August 1915.

Record daily precipitation for each month at Edwardsville 2 W
Month	Record daily precipitation (mm)	Date
Jan	77.5 mm (3.1 in)	4 January 2005
Feb	83.8 mm (3.3 in)	7 February 1999
Mar	81.8 mm (3.2 in)	28 March 1977
Apr	130.3 mm (5.1 in)	22 April 1944
May	163.3 mm (6.4 in)	26 May 2009
Jun	113.0 mm (4.4 in)	19 June 1951
Jul	152.4 mm (6.0 in)	14 July 1912
Aug	179.1 mm (7.1 in)	20 August 1915
Sep	99.6 mm (3.9 in)	14 September 2008
Oct	113.0 mm (4.4 in)	20 October 2016
Nov	159.8 mm (6.3 in)	5 November 2024
Dec	150.4 mm (5.9 in)	27 December 2015

Period of Record Coverage

1893 to 1988

3 years of record at Edwardsville 2 W, 1893 to 1988. 3 years have data for under 90 percent of days and are left out of rankings: 1893, 1987, 1988.

Latest Records

Latest records at Edwardsville 2 W
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
25 July 2026	Edwardsville 2 W, US	daily rain	39.4 mm (1.6 in)	10.4 mm (0.4 in)	16 years	20 of 100 (Routine)
19 May 2026	Edwardsville 2 W, US	daily rain	75.4 mm (3.0 in)	30.7 mm (1.2 in)	101 years	61 of 100 (Major)
16 April 2026	Edwardsville 2 W, US	daily rain	43.9 mm (1.7 in)	10.4 mm (0.4 in)	13 years	22 of 100 (Routine)
25 January 2026	Edwardsville 2 W, US	daily snowfall	20.3 cm (8.0 in)	8.1 cm (3.2 in)	48 years	40 of 100 (Notable)
4 December 2025	Edwardsville 2 W, US	daily snow depth	7.6 cm (3.0 in)	5.1 cm (2.0 in)	104 years	20 of 100 (Routine)
3 December 2025	Edwardsville 2 W, US	daily snow depth	12.7 cm (5.0 in)	10.2 cm (4.0 in)	104 years	60 of 100 (Major)
2 December 2025	Edwardsville 2 W, US	daily snow depth	17.8 cm (7.0 in)	12.7 cm (5.0 in)	0 years	35 of 100 (Notable)
2 December 2025	Edwardsville 2 W, US	daily snowfall	6.1 cm (2.4 in)	2.3 cm (0.9 in)	51 years	30 of 100 (Routine)
1 December 2025	Edwardsville 2 W, US	daily snow depth	10.2 cm (4.0 in)	5.1 cm (2.0 in)	72 years	41 of 100 (Notable)
30 November 2025	Edwardsville 2 W, US	daily snow depth	10.2 cm (4.0 in)	5.1 cm (2.0 in)	48 years	31 of 100 (Routine)
29 November 2025	Edwardsville 2 W, US	daily snowfall	15.2 cm (6.0 in)	12.7 cm (5.0 in)	72 years	51 of 100 (Notable)
29 November 2025	Edwardsville 2 W, US	daily snow depth	17.8 cm (7.0 in)	10.2 cm (4.0 in)	44 years	37 of 100 (Notable)
19 October 2025	Edwardsville 2 W, US	daily rain	56.4 mm (2.2 in)	29.7 mm (1.2 in)	4 years	34 of 100 (Routine)
11 August 2025	Edwardsville 2 W, US	daily rain	43.9 mm (1.7 in)	21.3 mm (0.8 in)	4 years	23 of 100 (Routine)
21 July 2025	Edwardsville 2 W, US	daily rain	73.7 mm (2.9 in)	38.4 mm (1.5 in)	2 years	33 of 100 (Routine)
20 May 2025	Edwardsville 2 W, US	daily rain	53.8 mm (2.1 in)	3.0 mm (0.12 in)	110 years	42 of 100 (Notable)
5 April 2025	Edwardsville 2 W, US	daily rain	79.2 mm (3.1 in)	44.9 mm (1.8 in)	86 years	70 of 100 (Major)
5 January 2025	Edwardsville 2 W, US	daily snowfall (Tie)	7.6 cm (3.0 in)	tie	106 years	10 of 100 (Routine)
3 December 2024	Edwardsville 2 W, US	daily snow depth (Tie)	2.5 cm (1.0 in)	tie	103 years	10 of 100 (Routine)
2 December 2024	Edwardsville 2 W, US	daily snow depth	5.1 cm (2.0 in)	2.6 cm (1.0 in)	82 years	20 of 100 (Routine)

Extremes by Year

1893 to 2026

Yearly extremes at Edwardsville 2 W: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	39.4 C (102.9 F)	1987	34.4 C (93.9 F)	3
Coldest night (TNn)	-19.4 C (-2.9 F)	1988	-17.8 C (0.0 F)	3
Wettest day (Rx1day)	179.1 mm (7.1 in)	1915	66.0 mm (2.6 in)	115
Wettest five days (Rx5day)	291.0 mm (11.5 in)	1946	104.0 mm (4.1 in)	115
Longest dry spell (CDD)	38 days	1955	22 days	115

Hottest day (TXx)

The hottest day of the year at Edwardsville 2 W, 1893 to 2026. The record is 39.4 C (102.9 F) in 1987, marked on the chart; the median year is 34.4 C (93.9 F).

Hottest day (TXx) at Edwardsville 2 W by year
Year	Hottest day (TXx)
1893	32.8 C (91.0 F)
1909	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
1950	n/a
1951	n/a
1952	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	39.4 C (102.9 F)
1988	34.4 C (93.9 F)
1989	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 Edwardsville 2 W, 1893 to 2026. The record is -19.4 C (-2.9 F) in 1988, marked on the chart; the median year is -17.8 C (0.0 F).

Coldest night (TNn) at Edwardsville 2 W by year
Year	Coldest night (TNn)
1893	-17.8 C (0.0 F)
1909	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
1950	n/a
1951	n/a
1952	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	-8.3 C (17.1 F)
1988	-19.4 C (-2.9 F)
1989	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 Edwardsville 2 W, 1893 to 2026. The record is 179.1 mm (7.1 in) in 1915, marked on the chart; the median year is 66.0 mm (2.6 in).

Wettest day (Rx1day) at Edwardsville 2 W by year
Year	Wettest day (Rx1day)
1893	47.0 mm (1.9 in)
1909	15.2 mm (0.6 in)
1910	94.0 mm (3.7 in)
1911	53.3 mm (2.1 in)
1912	152.4 mm (6.0 in)
1913	71.6 mm (2.8 in)
1914	59.9 mm (2.4 in)
1915	179.1 mm (7.1 in)
1916	55.6 mm (2.2 in)
1917	50.8 mm (2.0 in)
1918	51.8 mm (2.0 in)
1919	63.5 mm (2.5 in)
1920	50.8 mm (2.0 in)
1921	63.8 mm (2.5 in)
1922	54.6 mm (2.1 in)
1923	48.3 mm (1.9 in)
1924	59.2 mm (2.3 in)
1925	76.5 mm (3.0 in)
1926	47.2 mm (1.9 in)
1927	66.0 mm (2.6 in)
1928	57.9 mm (2.3 in)
1929	42.2 mm (1.7 in)
1930	36.6 mm (1.4 in)
1931	88.4 mm (3.5 in)
1932	80.0 mm (3.1 in)
1933	64.5 mm (2.5 in)
1934	41.7 mm (1.6 in)
1935	63.8 mm (2.5 in)
1936	59.2 mm (2.3 in)
1937	63.2 mm (2.5 in)
1938	91.2 mm (3.6 in)
1939	111.5 mm (4.4 in)
1940	31.5 mm (1.2 in)
1941	73.4 mm (2.9 in)
1942	87.4 mm (3.4 in)
1943	151.6 mm (6.0 in)
1944	130.3 mm (5.1 in)
1945	74.9 mm (2.9 in)
1946	148.8 mm (5.9 in)
1947	59.4 mm (2.3 in)
1948	75.7 mm (3.0 in)
1949	62.5 mm (2.5 in)
1950	71.9 mm (2.8 in)
1951	113.0 mm (4.4 in)
1952	109.5 mm (4.3 in)
1953	52.3 mm (2.1 in)
1954	67.6 mm (2.7 in)
1955	69.9 mm (2.8 in)
1956	56.6 mm (2.2 in)
1957	86.1 mm (3.4 in)
1958	42.7 mm (1.7 in)
1959	63.5 mm (2.5 in)
1960	62.0 mm (2.4 in)
1961	116.1 mm (4.6 in)
1962	54.9 mm (2.2 in)
1963	64.8 mm (2.6 in)
1964	47.0 mm (1.9 in)
1965	65.0 mm (2.6 in)
1966	66.8 mm (2.6 in)
1967	61.7 mm (2.4 in)
1968	83.3 mm (3.3 in)
1969	86.9 mm (3.4 in)
1970	62.0 mm (2.4 in)
1971	69.9 mm (2.8 in)
1972	65.5 mm (2.6 in)
1973	52.1 mm (2.1 in)
1974	71.1 mm (2.8 in)
1975	82.6 mm (3.3 in)
1976	48.8 mm (1.9 in)
1977	117.6 mm (4.6 in)
1978	35.8 mm (1.4 in)
1979	76.2 mm (3.0 in)
1980	40.9 mm (1.6 in)
1981	71.1 mm (2.8 in)
1982	63.0 mm (2.5 in)
1983	94.0 mm (3.7 in)
1984	49.3 mm (1.9 in)
1985	60.5 mm (2.4 in)
1986	61.0 mm (2.4 in)
1987	48.3 mm (1.9 in)
1988	42.2 mm (1.7 in)
1989	15.2 mm (0.6 in)
1994	43.2 mm (1.7 in)
1995	69.9 mm (2.8 in)
1996	96.0 mm (3.8 in)
1997	40.6 mm (1.6 in)
1998	66.8 mm (2.6 in)
1999	83.8 mm (3.3 in)
2000	95.3 mm (3.8 in)
2001	76.5 mm (3.0 in)
2002	82.0 mm (3.2 in)
2003	94.2 mm (3.7 in)
2004	76.7 mm (3.0 in)
2005	77.5 mm (3.1 in)
2006	69.9 mm (2.8 in)
2007	48.5 mm (1.9 in)
2008	99.6 mm (3.9 in)
2009	163.3 mm (6.4 in)
2010	71.9 mm (2.8 in)
2011	53.6 mm (2.1 in)
2012	45.2 mm (1.8 in)
2013	52.1 mm (2.1 in)
2014	57.9 mm (2.3 in)
2015	150.4 mm (5.9 in)
2016	113.0 mm (4.4 in)
2017	85.9 mm (3.4 in)
2018	80.3 mm (3.2 in)
2019	95.8 mm (3.8 in)
2020	72.1 mm (2.8 in)
2021	46.7 mm (1.8 in)
2022	75.7 mm (3.0 in)
2023	61.7 mm (2.4 in)
2024	159.8 mm (6.3 in)
2025	79.2 mm (3.1 in)
2026	75.4 mm (3.0 in)

Wettest five days (Rx5day)

The wettest five days of the year at Edwardsville 2 W, 1893 to 2026. The record is 291.0 mm (11.5 in) in 1946, marked on the chart; the median year is 104.0 mm (4.1 in).

Wettest five days (Rx5day) at Edwardsville 2 W by year
Year	Wettest five days (Rx5day)
1893	74.9 mm (2.9 in)
1909	31.0 mm (1.2 in)
1910	124.4 mm (4.9 in)
1911	104.2 mm (4.1 in)
1912	185.4 mm (7.3 in)
1913	157.5 mm (6.2 in)
1914	109.2 mm (4.3 in)
1915	269.0 mm (10.6 in)
1916	168.4 mm (6.6 in)
1917	86.7 mm (3.4 in)
1918	79.5 mm (3.1 in)
1919	157.3 mm (6.2 in)
1920	74.9 mm (2.9 in)
1921	96.5 mm (3.8 in)
1922	101.1 mm (4.0 in)
1923	92.7 mm (3.6 in)
1924	79.7 mm (3.1 in)
1925	111.2 mm (4.4 in)
1926	84.1 mm (3.3 in)
1927	131.2 mm (5.2 in)
1928	102.4 mm (4.0 in)
1929	71.9 mm (2.8 in)
1930	77.8 mm (3.1 in)
1931	119.6 mm (4.7 in)
1932	119.3 mm (4.7 in)
1933	155.7 mm (6.1 in)
1934	85.6 mm (3.4 in)
1935	92.9 mm (3.7 in)
1936	59.2 mm (2.3 in)
1937	102.8 mm (4.0 in)
1938	122.4 mm (4.8 in)
1939	135.9 mm (5.4 in)
1940	57.9 mm (2.3 in)
1941	96.3 mm (3.8 in)
1942	150.7 mm (5.9 in)
1943	234.4 mm (9.2 in)
1944	158.5 mm (6.2 in)
1945	110.7 mm (4.4 in)
1946	291.0 mm (11.5 in)
1947	90.4 mm (3.6 in)
1948	99.0 mm (3.9 in)
1949	88.2 mm (3.5 in)
1950	97.2 mm (3.8 in)
1951	135.6 mm (5.3 in)
1952	149.1 mm (5.9 in)
1953	52.8 mm (2.1 in)
1954	84.6 mm (3.3 in)
1955	93.2 mm (3.7 in)
1956	96.8 mm (3.8 in)
1957	158.3 mm (6.2 in)
1958	96.6 mm (3.8 in)
1959	68.3 mm (2.7 in)
1960	114.8 mm (4.5 in)
1961	152.3 mm (6.0 in)
1962	78.4 mm (3.1 in)
1963	97.4 mm (3.8 in)
1964	75.2 mm (3.0 in)
1965	108.6 mm (4.3 in)
1966	73.7 mm (2.9 in)
1967	101.1 mm (4.0 in)
1968	107.7 mm (4.2 in)
1969	97.5 mm (3.8 in)
1970	75.9 mm (3.0 in)
1971	116.2 mm (4.6 in)
1972	94.0 mm (3.7 in)
1973	94.0 mm (3.7 in)
1974	81.8 mm (3.2 in)
1975	104.0 mm (4.1 in)
1976	81.2 mm (3.2 in)
1977	118.9 mm (4.7 in)
1978	70.1 mm (2.8 in)
1979	125.3 mm (4.9 in)
1980	68.8 mm (2.7 in)
1981	110.2 mm (4.3 in)
1982	99.7 mm (3.9 in)
1983	123.8 mm (4.9 in)
1984	72.1 mm (2.8 in)
1985	109.9 mm (4.3 in)
1986	174.5 mm (6.9 in)
1987	98.4 mm (3.9 in)
1988	69.7 mm (2.7 in)
1989	17.2 mm (0.7 in)
1994	91.2 mm (3.6 in)
1995	217.2 mm (8.6 in)
1996	132.1 mm (5.2 in)
1997	55.4 mm (2.2 in)
1998	94.5 mm (3.7 in)
1999	99.9 mm (3.9 in)
2000	135.2 mm (5.3 in)
2001	125.5 mm (4.9 in)
2002	125.8 mm (5.0 in)
2003	109.6 mm (4.3 in)
2004	101.9 mm (4.0 in)
2005	159.9 mm (6.3 in)
2006	111.0 mm (4.4 in)
2007	73.9 mm (2.9 in)
2008	140.5 mm (5.5 in)
2009	217.6 mm (8.6 in)
2010	122.4 mm (4.8 in)
2011	90.2 mm (3.6 in)
2012	86.6 mm (3.4 in)
2013	134.4 mm (5.3 in)
2014	114.8 mm (4.5 in)
2015	229.5 mm (9.0 in)
2016	144.6 mm (5.7 in)
2017	197.2 mm (7.8 in)
2018	120.6 mm (4.7 in)
2019	118.4 mm (4.7 in)
2020	116.2 mm (4.6 in)
2021	109.5 mm (4.3 in)
2022	144.4 mm (5.7 in)
2023	76.5 mm (3.0 in)
2024	209.8 mm (8.3 in)
2025	108.4 mm (4.3 in)
2026	97.8 mm (3.9 in)

Longest dry spell (CDD)

The longest dry spell of the year at Edwardsville 2 W, 1893 to 2026. The record is 38 days in 1955, marked on the chart; the median year is 22 days.

Longest dry spell (CDD) at Edwardsville 2 W by year
Year	Longest dry spell (CDD)
1893	9 days
1909	10 days
1910	36 days
1911	19 days
1912	18 days
1913	22 days
1914	22 days
1915	24 days
1916	21 days
1917	23 days
1918	22 days
1919	25 days
1920	28 days
1921	22 days
1922	22 days
1923	17 days
1924	23 days
1925	16 days
1926	33 days
1927	21 days
1928	22 days
1929	24 days
1930	23 days
1931	25 days
1932	16 days
1933	24 days
1934	18 days
1935	22 days
1936	23 days
1937	13 days
1938	24 days
1939	25 days
1940	26 days
1941	20 days
1942	28 days
1943	27 days
1944	23 days
1945	24 days
1946	23 days
1947	21 days
1948	19 days
1949	20 days
1950	28 days
1951	15 days
1952	31 days
1953	25 days
1954	22 days
1955	38 days
1956	31 days
1957	23 days
1958	32 days
1959	22 days
1960	18 days
1961	20 days
1962	33 days
1963	36 days
1964	32 days
1965	17 days
1966	20 days
1967	24 days
1968	24 days
1969	17 days
1970	25 days
1971	25 days
1972	27 days
1973	19 days
1974	18 days
1975	15 days
1976	25 days
1977	18 days
1978	20 days
1979	35 days
1980	20 days
1981	23 days
1982	15 days
1983	27 days
1984	19 days
1985	26 days
1986	27 days
1987	20 days
1988	18 days
1989	12 days
1994	15 days
1995	30 days
1996	21 days
1997	15 days
1998	13 days
1999	21 days
2000	13 days
2001	16 days
2002	26 days
2003	21 days
2004	19 days
2005	20 days
2006	22 days
2007	23 days
2008	20 days
2009	25 days
2010	21 days
2011	15 days
2012	27 days
2013	26 days
2014	14 days
2015	27 days
2016	13 days
2017	31 days
2018	22 days
2019	14 days
2020	25 days
2021	13 days
2022	16 days
2023	21 days
2024	26 days
2025	24 days
2026	20 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

104 years, 1910 to 2025

A day with at least 68.4 mm (2.7 in) of rain is expected about once in 2 years. A day with at least 188.0 mm (7.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Edwardsville 2 W: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	68.4 mm (2.7 in)
5 years	93.0 mm (3.7 in)
10 years	111.9 mm (4.4 in)
25 years	139.2 mm (5.5 in)
50 years	162.3 mm (6.4 in)
100 years	188.0 mm (7.4 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 104 years of values from 1910 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: 179.1 mm (7.1 in) in 1915; 163.3 mm (6.4 in) in 2009; 159.8 mm (6.3 in) in 2024.

Download the Data

Data for Edwardsville 2 W standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Edwardsville 2 W 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Days with data per year at Edwardsville 2 W
Year	Days with data	Share of year	Complete
1893	89	24%	No
1987	206	56%	No
1988	121	33%	No