Macomb Weather Records (USC00115280)

Record envelope, standing records and threshold days for Macomb (USC00115280), Illinois, United States, with 125 years of record.

Key Facts for Macomb

Macomb (USC00115280) is a weather station in Illinois, United States at 40.48 latitude and -90.67 longitude, 186 m (610 ft) above sea level.
The station reports from 1902 to 2026, 125 years of record.
1,464 records set at Macomb still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Macomb set a daily record precipitation of 51.3 mm (2.0 in) on 16 September 2026 (provisional).

Provisional Records

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

About the Station

Location: Illinois, United States, 40.48 latitude, -90.67 longitude.
Elevation: 186 m (610 ft).
Period of record: 1902 to 2026, 125 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 Macomb. 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 Macomb, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	21.7 C (71.1 F)	-26.7 C (-16.1 F)	n/a	n/a
Feb	18.3 C (64.9 F)	-33.3 C (-27.9 F)	n/a	n/a
Mar	31.1 C (88.0 F)	-18.3 C (-0.9 F)	n/a	n/a
Apr	30.0 C (86.0 F)	-6.7 C (19.9 F)	n/a	n/a
May	32.8 C (91.0 F)	-2.2 C (28.0 F)	n/a	n/a
Jun	35.6 C (96.1 F)	3.3 C (37.9 F)	n/a	n/a
Jul	37.2 C (99.0 F)	8.3 C (46.9 F)	n/a	n/a
Aug	36.7 C (98.1 F)	4.4 C (39.9 F)	n/a	n/a
Sep	35.0 C (95.0 F)	-0.6 C (30.9 F)	n/a	n/a
Oct	30.0 C (86.0 F)	-5.6 C (21.9 F)	n/a	n/a
Nov	25.6 C (78.1 F)	-12.8 C (9.0 F)	n/a	n/a
Dec	15.6 C (60.1 F)	-22.8 C (-9.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Macomb still stand. 1903 holds the most, with 231.

All-Time Record Progression

3 new records

3 all-time records were set at Macomb between 23 September 1961 and 18 April 2013. Each dot is a new record.

When Macomb set new all-time records
Date	Kind	Detail
1961-09-23	Record daily precipitation	Record daily precipitation 128.8 mm (5.1 in)
2008-12-16	Record snow depth	Record snow depth 58.4 cm (23.0 in)
2013-04-18	Record daily precipitation	Record daily precipitation 158.2 mm (6.2 in)

Wettest Day of Each Month

Apr: 158.2 mm (6.2 in)

The wettest day on record for each calendar month at Macomb. The most was 158.2 mm (6.2 in) on 18 April 2013.

Record daily precipitation for each month at Macomb
Month	Record daily precipitation (mm)	Date
Jan	114.3 mm (4.5 in)	31 January 2008
Feb	85.1 mm (3.4 in)	21 February 1997
Mar	118.1 mm (4.6 in)	4 March 1985
Apr	158.2 mm (6.2 in)	18 April 2013
May	86.9 mm (3.4 in)	12 May 2002
Jun	125.0 mm (4.9 in)	21 June 2007
Jul	108.2 mm (4.3 in)	21 July 1996
Aug	149.1 mm (5.9 in)	15 August 2026
Sep	128.8 mm (5.1 in)	23 September 1961
Oct	76.2 mm (3.0 in)	11 October 1969
Nov	65.3 mm (2.6 in)	29 November 2006
Dec	86.1 mm (3.4 in)	3 December 1982

Period of Record Coverage

1902 to 1909

8 years of record at Macomb, 1902 to 1909. 2 years have data for under 90 percent of days and are left out of rankings: 1902, 1909.

Latest Records

Latest records at Macomb
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
16 September 2026	Macomb, US	daily rain (Provisional)	51.3 mm (2.0 in)	4.8 mm (0.19 in)	89 years	39 of 100 (Notable)
15 August 2026	Macomb, US	monthly rain	149.1 mm (5.9 in)	69.6 mm (2.7 in)	56 years	76 of 100 (Major)
22 June 2026	Macomb, US	daily rain	50.8 mm (2.0 in)	6.1 mm (0.24 in)	59 years	31 of 100 (Routine)
11 June 2026	Macomb, US	daily rain	101.6 mm (4.0 in)	50.3 mm (2.0 in)	68 years	64 of 100 (Major)
1 April 2026	Macomb, US	daily rain	25.4 mm (1.0 in)	11.4 mm (0.4 in)	73 years	42 of 100 (Notable)
12 December 2025	Macomb, US	daily snowfall	7.6 cm (3.0 in)	2.5 cm (1.0 in)	52 years	30 of 100 (Routine)
2 December 2025	Macomb, US	daily snowfall	9.7 cm (3.8 in)	3.6 cm (1.4 in)	60 years	36 of 100 (Notable)
30 November 2025	Macomb, US	daily snowfall	14.2 cm (5.6 in)	6.3 cm (2.5 in)	83 years	50 of 100 (Notable)
30 November 2025	Macomb, US	daily snow depth (Tie)	12.7 cm (5.0 in)	tie	7 years	3 of 100 (Routine)
12 July 2025	Macomb, US	daily rain (Tie)	40.9 mm (1.6 in)	tie	103 years	10 of 100 (Routine)
20 May 2025	Macomb, US	daily rain	51.8 mm (2.0 in)	2.3 mm (0.09 in)	40 years	23 of 100 (Routine)
15 December 2024	Macomb, US	daily rain (Tie)	32.5 mm (1.3 in)	tie	53 years	6 of 100 (Routine)
5 November 2024	Macomb, US	daily rain	51.3 mm (2.0 in)	24.6 mm (1.0 in)	119 years	66 of 100 (Major)
27 April 2024	Macomb, US	daily rain	40.6 mm (1.6 in)	9.1 mm (0.36 in)	15 years	22 of 100 (Routine)
9 January 2024	Macomb, US	daily rain	24.1 mm (0.9 in)	0.5 mm (0.02 in)	77 years	20 of 100 (Routine)
8 May 2023	Macomb, US	daily rain	62.7 mm (2.5 in)	5.5 mm (0.22 in)	28 years	22 of 100 (Routine)
23 March 2023	Macomb, US	daily rain	30.0 mm (1.2 in)	9.7 mm (0.38 in)	29 years	27 of 100 (Routine)
23 February 2023	Macomb, US	daily rain	33.3 mm (1.3 in)	13.0 mm (0.5 in)	113 years	56 of 100 (Notable)
9 February 2023	Macomb, US	daily rain	30.5 mm (1.2 in)	5.9 mm (0.23 in)	21 years	23 of 100 (Routine)
3 January 2023	Macomb, US	daily rain	25.7 mm (1.0 in)	7.2 mm (0.28 in)	116 years	47 of 100 (Notable)

Extremes by Year

1902 to 2026

Yearly extremes at Macomb: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	37.2 C (99.0 F)	1906	35.3 C (95.5 F)	8
Coldest night (TNn)	-33.3 C (-27.9 F)	1905	-22.2 C (-8.0 F)	8
Wettest day (Rx1day)	158.2 mm (6.2 in)	2013	61.0 mm (2.4 in)	124
Wettest five days (Rx5day)	189.4 mm (7.5 in)	1915	93.3 mm (3.7 in)	124
Longest dry spell (CDD)	40 days	1979	22 days	124

Hottest day (TXx)

The hottest day of the year at Macomb, 1902 to 2026. The record is 37.2 C (99.0 F) in 1906, marked on the chart; the median year is 35.3 C (95.5 F).

Hottest day (TXx) at Macomb by year
Year	Hottest day (TXx)
1902	32.2 C (90.0 F)
1903	36.7 C (98.1 F)
1904	33.9 C (93.0 F)
1905	35.0 C (95.0 F)
1906	37.2 C (99.0 F)
1907	35.6 C (96.1 F)
1908	36.7 C (98.1 F)
1909	32.2 C (90.0 F)
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	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 Macomb, 1902 to 2026. The record is -33.3 C (-27.9 F) in 1905, marked on the chart; the median year is -22.2 C (-8.0 F).

Coldest night (TNn) at Macomb by year
Year	Coldest night (TNn)
1902	-19.4 C (-2.9 F)
1903	-27.2 C (-17.0 F)
1904	-26.7 C (-16.1 F)
1905	-33.3 C (-27.9 F)
1906	-18.3 C (-0.9 F)
1907	-21.7 C (-7.1 F)
1908	-20.6 C (-5.1 F)
1909	-22.8 C (-9.0 F)
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	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 Macomb, 1902 to 2026. The record is 158.2 mm (6.2 in) in 2013, marked on the chart; the median year is 61.0 mm (2.4 in).

Wettest day (Rx1day) at Macomb by year
Year	Wettest day (Rx1day)
1902	76.7 mm (3.0 in)
1903	61.0 mm (2.4 in)
1904	69.9 mm (2.8 in)
1905	119.4 mm (4.7 in)
1906	45.7 mm (1.8 in)
1907	57.9 mm (2.3 in)
1908	83.8 mm (3.3 in)
1909	44.5 mm (1.8 in)
1911	18.5 mm (0.7 in)
1912	36.3 mm (1.4 in)
1913	53.8 mm (2.1 in)
1914	36.6 mm (1.4 in)
1915	78.7 mm (3.1 in)
1916	76.2 mm (3.0 in)
1917	98.3 mm (3.9 in)
1918	66.5 mm (2.6 in)
1919	60.5 mm (2.4 in)
1920	65.5 mm (2.6 in)
1921	70.6 mm (2.8 in)
1922	97.5 mm (3.8 in)
1923	51.6 mm (2.0 in)
1924	103.9 mm (4.1 in)
1925	49.3 mm (1.9 in)
1926	68.3 mm (2.7 in)
1927	61.5 mm (2.4 in)
1928	57.7 mm (2.3 in)
1929	58.2 mm (2.3 in)
1930	67.8 mm (2.7 in)
1931	52.3 mm (2.1 in)
1932	47.5 mm (1.9 in)
1933	42.2 mm (1.7 in)
1934	51.1 mm (2.0 in)
1935	107.2 mm (4.2 in)
1936	65.3 mm (2.6 in)
1937	97.0 mm (3.8 in)
1938	65.0 mm (2.6 in)
1939	47.0 mm (1.9 in)
1940	29.0 mm (1.1 in)
1941	55.4 mm (2.2 in)
1942	51.8 mm (2.0 in)
1943	47.8 mm (1.9 in)
1944	72.9 mm (2.9 in)
1945	46.2 mm (1.8 in)
1946	52.1 mm (2.1 in)
1947	68.6 mm (2.7 in)
1948	81.0 mm (3.2 in)
1949	46.7 mm (1.8 in)
1950	43.4 mm (1.7 in)
1951	73.4 mm (2.9 in)
1952	67.1 mm (2.6 in)
1953	55.6 mm (2.2 in)
1954	67.6 mm (2.7 in)
1955	52.1 mm (2.1 in)
1956	71.1 mm (2.8 in)
1957	51.3 mm (2.0 in)
1958	46.5 mm (1.8 in)
1959	77.0 mm (3.0 in)
1960	69.3 mm (2.7 in)
1961	128.8 mm (5.1 in)
1962	50.8 mm (2.0 in)
1963	58.9 mm (2.3 in)
1964	70.4 mm (2.8 in)
1965	78.2 mm (3.1 in)
1966	38.4 mm (1.5 in)
1967	51.3 mm (2.0 in)
1968	73.7 mm (2.9 in)
1969	76.2 mm (3.0 in)
1970	79.5 mm (3.1 in)
1971	103.1 mm (4.1 in)
1972	50.3 mm (2.0 in)
1973	46.2 mm (1.8 in)
1974	51.8 mm (2.0 in)
1975	55.9 mm (2.2 in)
1976	59.2 mm (2.3 in)
1977	66.0 mm (2.6 in)
1978	49.8 mm (2.0 in)
1979	50.8 mm (2.0 in)
1980	77.5 mm (3.1 in)
1981	69.3 mm (2.7 in)
1982	86.1 mm (3.4 in)
1983	59.7 mm (2.4 in)
1984	52.3 mm (2.1 in)
1985	118.1 mm (4.6 in)
1986	45.7 mm (1.8 in)
1987	54.4 mm (2.1 in)
1988	36.1 mm (1.4 in)
1989	40.1 mm (1.6 in)
1990	94.0 mm (3.7 in)
1991	67.6 mm (2.7 in)
1992	41.9 mm (1.6 in)
1993	66.5 mm (2.6 in)
1994	46.5 mm (1.8 in)
1995	71.1 mm (2.8 in)
1996	108.2 mm (4.3 in)
1997	85.1 mm (3.4 in)
1998	61.0 mm (2.4 in)
1999	57.2 mm (2.3 in)
2000	45.0 mm (1.8 in)
2001	61.0 mm (2.4 in)
2002	86.9 mm (3.4 in)
2003	67.3 mm (2.6 in)
2004	55.9 mm (2.2 in)
2005	45.0 mm (1.8 in)
2006	84.8 mm (3.3 in)
2007	125.0 mm (4.9 in)
2008	114.3 mm (4.5 in)
2009	67.3 mm (2.6 in)
2010	78.2 mm (3.1 in)
2011	60.5 mm (2.4 in)
2012	57.4 mm (2.3 in)
2013	158.2 mm (6.2 in)
2014	100.6 mm (4.0 in)
2015	63.5 mm (2.5 in)
2016	60.7 mm (2.4 in)
2017	48.8 mm (1.9 in)
2018	83.8 mm (3.3 in)
2019	66.0 mm (2.6 in)
2020	90.7 mm (3.6 in)
2021	57.2 mm (2.3 in)
2022	49.0 mm (1.9 in)
2023	62.7 mm (2.5 in)
2024	51.3 mm (2.0 in)
2025	58.4 mm (2.3 in)
2026	149.1 mm (5.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Macomb, 1902 to 2026. The record is 189.4 mm (7.5 in) in 1915, marked on the chart; the median year is 93.3 mm (3.7 in).

Wettest five days (Rx5day) at Macomb by year
Year	Wettest five days (Rx5day)
1902	96.3 mm (3.8 in)
1903	92.7 mm (3.6 in)
1904	97.1 mm (3.8 in)
1905	120.7 mm (4.8 in)
1906	75.4 mm (3.0 in)
1907	114.3 mm (4.5 in)
1908	84.3 mm (3.3 in)
1909	54.6 mm (2.1 in)
1911	28.7 mm (1.1 in)
1912	45.4 mm (1.8 in)
1913	64.5 mm (2.5 in)
1914	47.5 mm (1.9 in)
1915	189.4 mm (7.5 in)
1916	90.7 mm (3.6 in)
1917	170.7 mm (6.7 in)
1918	134.4 mm (5.3 in)
1919	106.4 mm (4.2 in)
1920	80.5 mm (3.2 in)
1921	112.0 mm (4.4 in)
1922	141.2 mm (5.6 in)
1923	77.0 mm (3.0 in)
1924	131.8 mm (5.2 in)
1925	73.2 mm (2.9 in)
1926	106.3 mm (4.2 in)
1927	106.7 mm (4.2 in)
1928	76.2 mm (3.0 in)
1929	103.8 mm (4.1 in)
1930	68.6 mm (2.7 in)
1931	85.9 mm (3.4 in)
1932	74.2 mm (2.9 in)
1933	68.1 mm (2.7 in)
1934	113.3 mm (4.5 in)
1935	125.0 mm (4.9 in)
1936	93.8 mm (3.7 in)
1937	104.7 mm (4.1 in)
1938	83.1 mm (3.3 in)
1939	101.6 mm (4.0 in)
1940	42.4 mm (1.7 in)
1941	139.7 mm (5.5 in)
1942	66.3 mm (2.6 in)
1943	77.8 mm (3.1 in)
1944	108.3 mm (4.3 in)
1945	85.1 mm (3.4 in)
1946	107.7 mm (4.2 in)
1947	68.6 mm (2.7 in)
1948	120.9 mm (4.8 in)
1949	73.2 mm (2.9 in)
1950	108.5 mm (4.3 in)
1951	77.5 mm (3.1 in)
1952	99.9 mm (3.9 in)
1953	57.4 mm (2.3 in)
1954	78.5 mm (3.1 in)
1955	72.7 mm (2.9 in)
1956	85.1 mm (3.4 in)
1957	83.3 mm (3.3 in)
1958	80.2 mm (3.2 in)
1959	113.3 mm (4.5 in)
1960	107.0 mm (4.2 in)
1961	176.1 mm (6.9 in)
1962	85.0 mm (3.3 in)
1963	76.5 mm (3.0 in)
1964	107.6 mm (4.2 in)
1965	122.7 mm (4.8 in)
1966	66.8 mm (2.6 in)
1967	55.6 mm (2.2 in)
1968	95.5 mm (3.8 in)
1969	160.3 mm (6.3 in)
1970	117.4 mm (4.6 in)
1971	141.7 mm (5.6 in)
1972	60.4 mm (2.4 in)
1973	89.2 mm (3.5 in)
1974	111.8 mm (4.4 in)
1975	76.0 mm (3.0 in)
1976	99.6 mm (3.9 in)
1977	140.7 mm (5.5 in)
1978	83.0 mm (3.3 in)
1979	75.0 mm (3.0 in)
1980	175.3 mm (6.9 in)
1981	98.9 mm (3.9 in)
1982	107.9 mm (4.2 in)
1983	85.7 mm (3.4 in)
1984	86.8 mm (3.4 in)
1985	127.0 mm (5.0 in)
1986	67.1 mm (2.6 in)
1987	99.2 mm (3.9 in)
1988	52.6 mm (2.1 in)
1989	77.8 mm (3.1 in)
1990	112.7 mm (4.4 in)
1991	128.5 mm (5.1 in)
1992	76.5 mm (3.0 in)
1993	139.2 mm (5.5 in)
1994	61.4 mm (2.4 in)
1995	131.1 mm (5.2 in)
1996	120.4 mm (4.7 in)
1997	92.5 mm (3.6 in)
1998	75.3 mm (3.0 in)
1999	67.0 mm (2.6 in)
2000	67.1 mm (2.6 in)
2001	81.6 mm (3.2 in)
2002	122.7 mm (4.8 in)
2003	119.8 mm (4.7 in)
2004	92.7 mm (3.6 in)
2005	60.7 mm (2.4 in)
2006	113.5 mm (4.5 in)
2007	157.5 mm (6.2 in)
2008	129.1 mm (5.1 in)
2009	103.6 mm (4.1 in)
2010	117.0 mm (4.6 in)
2011	82.2 mm (3.2 in)
2012	71.1 mm (2.8 in)
2013	174.9 mm (6.9 in)
2014	122.7 mm (4.8 in)
2015	134.7 mm (5.3 in)
2016	81.6 mm (3.2 in)
2017	91.0 mm (3.6 in)
2018	161.1 mm (6.3 in)
2019	116.9 mm (4.6 in)
2020	97.1 mm (3.8 in)
2021	100.1 mm (3.9 in)
2022	80.7 mm (3.2 in)
2023	77.0 mm (3.0 in)
2024	89.4 mm (3.5 in)
2025	92.7 mm (3.6 in)
2026	184.9 mm (7.3 in)

Longest dry spell (CDD)

The longest dry spell of the year at Macomb, 1902 to 2026. The record is 40 days in 1979, marked on the chart; the median year is 22 days.

Longest dry spell (CDD) at Macomb by year
Year	Longest dry spell (CDD)
1902	16 days
1903	25 days
1904	31 days
1905	21 days
1906	20 days
1907	23 days
1908	25 days
1909	12 days
1911	11 days
1912	26 days
1913	36 days
1914	31 days
1915	31 days
1916	26 days
1917	37 days
1918	15 days
1919	37 days
1920	17 days
1921	13 days
1922	16 days
1923	14 days
1924	22 days
1925	22 days
1926	14 days
1927	19 days
1928	19 days
1929	13 days
1930	19 days
1931	19 days
1932	17 days
1933	26 days
1934	23 days
1935	16 days
1936	32 days
1937	15 days
1938	28 days
1939	33 days
1940	35 days
1941	24 days
1942	28 days
1943	26 days
1944	28 days
1945	20 days
1946	22 days
1947	33 days
1948	21 days
1949	21 days
1950	29 days
1951	16 days
1952	31 days
1953	22 days
1954	19 days
1955	15 days
1956	36 days
1957	23 days
1958	23 days
1959	17 days
1960	18 days
1961	19 days
1962	17 days
1963	28 days
1964	30 days
1965	19 days
1966	27 days
1967	17 days
1968	26 days
1969	23 days
1970	17 days
1971	31 days
1972	18 days
1973	14 days
1974	24 days
1975	19 days
1976	26 days
1977	17 days
1978	21 days
1979	40 days
1980	28 days
1981	24 days
1982	18 days
1983	26 days
1984	21 days
1985	24 days
1986	15 days
1987	21 days
1988	29 days
1989	25 days
1990	16 days
1991	22 days
1992	18 days
1993	24 days
1994	21 days
1995	21 days
1996	26 days
1997	21 days
1998	19 days
1999	37 days
2000	15 days
2001	26 days
2002	28 days
2003	16 days
2004	26 days
2005	22 days
2006	34 days
2007	20 days
2008	16 days
2009	14 days
2010	29 days
2011	31 days
2012	20 days
2013	30 days
2014	19 days
2015	23 days
2016	17 days
2017	20 days
2018	16 days
2019	14 days
2020	21 days
2021	17 days
2022	17 days
2023	25 days
2024	24 days
2025	20 days
2026	35 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

115 years, 1903 to 2025

A day with at least 61.6 mm (2.4 in) of rain is expected about once in 2 years. A day with at least 143.2 mm (5.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Macomb: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	61.6 mm (2.4 in)
5 years	80.2 mm (3.2 in)
10 years	93.7 mm (3.7 in)
25 years	112.3 mm (4.4 in)
50 years	127.3 mm (5.0 in)
100 years	143.2 mm (5.6 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 115 years of values from 1903 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: 158.2 mm (6.2 in) in 2013; 128.8 mm (5.1 in) in 1961; 125.0 mm (4.9 in) in 2007.

Download the Data

Data for Macomb standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Macomb 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Year	Days with data	Share of year	Complete
1902	153	42%	No
1903	346	95%	Yes
1904	353	96%	Yes
1905	363	99%	Yes
1906	362	99%	Yes
1907	363	99%	Yes
1908	365	100%	Yes
1909	150	41%	No