Quincy Mem Brg Weather Records (USC00117082)

Record envelope, standing records and threshold days for Quincy Mem Brg (USC00117082), Illinois, United States, with 101 years of record.

Key Facts for Quincy Mem Brg

Quincy Mem Brg (USC00117082) is a weather station in Illinois, United States at 39.93 latitude and -91.41 longitude, 155 m (508 ft) above sea level.
The station reports from 1892 to 1992, 101 years of record.
0 records set at Quincy Mem Brg still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Quincy Mem Brg set a daily record precipitation of 48.3 mm (1.9 in) on 10 August 1992.

About the Station

Location: Illinois, United States, 39.93 latitude, -91.41 longitude.
Elevation: 155 m (508 ft).
Period of record: 1892 to 1992, 101 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 Quincy Mem Brg. 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 Quincy Mem Brg, 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	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	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

0 standing records

0 records at Quincy Mem Brg still stand.

All-Time Record Progression

1 new records

1 all-time records were set at Quincy Mem Brg between 14 January 1979 and 14 January 1979. Each dot is a new record.

Wettest Day of Each Month

Sep: 143.8 mm (5.7 in)

The wettest day on record for each calendar month at Quincy Mem Brg. The most was 143.8 mm (5.7 in) on 28 September 1911.

Record daily precipitation for each month at Quincy Mem Brg
Month	Record daily precipitation (mm)	Date
Jan	74.4 mm (2.9 in)	24 January 1938
Feb	68.3 mm (2.7 in)	26 February 1936
Mar	64.0 mm (2.5 in)	21 March 1962
Apr	102.4 mm (4.0 in)	11 April 1944
May	133.4 mm (5.3 in)	26 May 1893
Jun	128.8 mm (5.1 in)	15 June 1968
Jul	99.8 mm (3.9 in)	28 July 1910
Aug	127.0 mm (5.0 in)	8 August 1943
Sep	143.8 mm (5.7 in)	28 September 1911
Oct	98.0 mm (3.9 in)	3 October 1986
Nov	72.1 mm (2.8 in)	12 November 1922
Dec	90.4 mm (3.6 in)	3 December 1982

Latest Records

Latest records at Quincy Mem Brg
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
10 August 1992	Quincy Mem Brg, US	daily rain	48.3 mm (1.9 in)	26.2 mm (1.0 in)	59 years	44 of 100 (Notable)
25 March 1990	Quincy Mem Brg, US	daily snow depth (Tie)	5.1 cm (2.0 in)	tie	24 years	3 of 100 (Routine)
24 March 1990	Quincy Mem Brg, US	daily snowfall	17.8 cm (7.0 in)	12.7 cm (5.0 in)	77 years	60 of 100 (Major)
24 March 1990	Quincy Mem Brg, US	daily snow depth	17.8 cm (7.0 in)	12.7 cm (5.0 in)	56 years	41 of 100 (Notable)
15 March 1990	Quincy Mem Brg, US	daily rain	50.8 mm (2.0 in)	3.0 mm (0.12 in)	45 years	25 of 100 (Routine)
15 February 1990	Quincy Mem Brg, US	daily rain	42.9 mm (1.7 in)	36.0 mm (1.4 in)	15 years	53 of 100 (Notable)
17 October 1989	Quincy Mem Brg, US	daily rain	27.9 mm (1.1 in)	6.8 mm (0.27 in)	76 years	36 of 100 (Notable)
9 September 1989	Quincy Mem Brg, US	daily rain	71.6 mm (2.8 in)	11.9 mm (0.5 in)	63 years	34 of 100 (Routine)
29 August 1989	Quincy Mem Brg, US	daily rain	53.6 mm (2.1 in)	20.3 mm (0.8 in)	12 years	25 of 100 (Routine)
15 February 1989	Quincy Mem Brg, US	daily snowfall	5.1 cm (2.0 in)	2.6 cm (1.0 in)	40 years	27 of 100 (Routine)
28 December 1988	Quincy Mem Brg, US	daily snowfall	10.2 cm (4.0 in)	2.6 cm (1.0 in)	22 years	20 of 100 (Routine)
11 February 1988	Quincy Mem Brg, US	daily snowfall	15.2 cm (6.0 in)	1.2 cm (0.5 in)	44 years	25 of 100 (Routine)
4 February 1988	Quincy Mem Brg, US	daily snowfall	10.2 cm (4.0 in)	6.9 cm (2.7 in)	38 years	37 of 100 (Notable)
20 December 1987	Quincy Mem Brg, US	daily rain	34.0 mm (1.3 in)	3.8 mm (0.15 in)	34 years	23 of 100 (Routine)
18 December 1987	Quincy Mem Brg, US	daily snow depth	20.3 cm (8.0 in)	2.5 cm (1.0 in)	54 years	26 of 100 (Routine)
17 December 1987	Quincy Mem Brg, US	daily snow depth	20.3 cm (8.0 in)	2.5 cm (1.0 in)	54 years	26 of 100 (Routine)
16 December 1987	Quincy Mem Brg, US	daily snow depth	25.4 cm (10.0 in)	7.6 cm (3.0 in)	54 years	34 of 100 (Routine)
15 December 1987	Quincy Mem Brg, US	daily snowfall	24.1 cm (9.5 in)	17.7 cm (7.0 in)	36 years	59 of 100 (Notable)
15 December 1987	Quincy Mem Brg, US	daily snow depth	25.4 cm (10.0 in)	7.6 cm (3.0 in)	54 years	34 of 100 (Routine)
13 August 1987	Quincy Mem Brg, US	daily rain	64.0 mm (2.5 in)	23.1 mm (0.9 in)	70 years	45 of 100 (Notable)

Extremes by Year

1892 to 1992

Yearly extremes at Quincy Mem Brg: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	143.8 mm (5.7 in)	1911	65.8 mm (2.6 in)	85
Wettest five days (Rx5day)	252.3 mm (9.9 in)	1911	96.5 mm (3.8 in)	85
Longest dry spell (CDD)	50 days	1914	23 days	85

Wettest day (Rx1day)

The wettest day of the year at Quincy Mem Brg, 1892 to 1992. The record is 143.8 mm (5.7 in) in 1911, marked on the chart; the median year is 65.8 mm (2.6 in).

Wettest day (Rx1day) at Quincy Mem Brg by year
Year	Wettest day (Rx1day)
1892	38.9 mm (1.5 in)
1893	133.4 mm (5.3 in)
1894	26.9 mm (1.1 in)
1910	99.8 mm (3.9 in)
1911	143.8 mm (5.7 in)
1912	54.6 mm (2.1 in)
1913	125.2 mm (4.9 in)
1914	57.2 mm (2.3 in)
1915	71.9 mm (2.8 in)
1916	53.3 mm (2.1 in)
1917	107.7 mm (4.2 in)
1918	44.5 mm (1.8 in)
1919	58.2 mm (2.3 in)
1920	78.5 mm (3.1 in)
1921	39.6 mm (1.6 in)
1922	72.1 mm (2.8 in)
1923	56.9 mm (2.2 in)
1924	47.5 mm (1.9 in)
1925	78.0 mm (3.1 in)
1926	84.1 mm (3.3 in)
1927	42.2 mm (1.7 in)
1928	62.7 mm (2.5 in)
1929	65.3 mm (2.6 in)
1930	65.8 mm (2.6 in)
1931	86.6 mm (3.4 in)
1932	79.8 mm (3.1 in)
1933	53.8 mm (2.1 in)
1934	46.2 mm (1.8 in)
1935	61.7 mm (2.4 in)
1936	70.6 mm (2.8 in)
1937	98.0 mm (3.9 in)
1938	74.4 mm (2.9 in)
1939	91.2 mm (3.6 in)
1940	71.4 mm (2.8 in)
1941	51.8 mm (2.0 in)
1942	59.7 mm (2.4 in)
1943	127.0 mm (5.0 in)
1944	102.4 mm (4.0 in)
1945	61.0 mm (2.4 in)
1946	81.8 mm (3.2 in)
1947	96.5 mm (3.8 in)
1948	62.5 mm (2.5 in)
1949	86.4 mm (3.4 in)
1950	53.8 mm (2.1 in)
1951	83.8 mm (3.3 in)
1952	48.3 mm (1.9 in)
1953	36.1 mm (1.4 in)
1954	63.5 mm (2.5 in)
1955	117.1 mm (4.6 in)
1956	54.4 mm (2.1 in)
1957	96.5 mm (3.8 in)
1958	89.2 mm (3.5 in)
1959	39.4 mm (1.6 in)
1960	65.0 mm (2.6 in)
1961	94.5 mm (3.7 in)
1962	64.0 mm (2.5 in)
1963	57.9 mm (2.3 in)
1964	66.5 mm (2.6 in)
1965	90.2 mm (3.6 in)
1966	45.5 mm (1.8 in)
1967	46.7 mm (1.8 in)
1968	128.8 mm (5.1 in)
1969	71.1 mm (2.8 in)
1970	104.1 mm (4.1 in)
1971	36.8 mm (1.4 in)
1972	38.9 mm (1.5 in)
1973	98.6 mm (3.9 in)
1974	58.7 mm (2.3 in)
1975	46.5 mm (1.8 in)
1976	52.8 mm (2.1 in)
1977	99.8 mm (3.9 in)
1978	89.7 mm (3.5 in)
1979	40.9 mm (1.6 in)
1980	44.2 mm (1.7 in)
1981	63.8 mm (2.5 in)
1982	90.4 mm (3.6 in)
1983	69.9 mm (2.8 in)
1984	85.9 mm (3.4 in)
1985	72.1 mm (2.8 in)
1986	98.0 mm (3.9 in)
1987	71.4 mm (2.8 in)
1988	29.2 mm (1.1 in)
1989	71.6 mm (2.8 in)
1990	50.8 mm (2.0 in)
1992	62.2 mm (2.4 in)

Wettest five days (Rx5day)

The wettest five days of the year at Quincy Mem Brg, 1892 to 1992. The record is 252.3 mm (9.9 in) in 1911, marked on the chart; the median year is 96.5 mm (3.8 in).

Wettest five days (Rx5day) at Quincy Mem Brg by year
Year	Wettest five days (Rx5day)
1892	49.8 mm (2.0 in)
1893	53.6 mm (2.1 in)
1894	24.3 mm (1.0 in)
1910	111.0 mm (4.4 in)
1911	252.3 mm (9.9 in)
1912	57.6 mm (2.3 in)
1913	134.1 mm (5.3 in)
1914	96.5 mm (3.8 in)
1915	116.4 mm (4.6 in)
1916	130.5 mm (5.1 in)
1917	143.8 mm (5.7 in)
1918	108.3 mm (4.3 in)
1919	90.4 mm (3.6 in)
1920	88.7 mm (3.5 in)
1921	63.3 mm (2.5 in)
1922	105.9 mm (4.2 in)
1923	130.6 mm (5.1 in)
1924	72.4 mm (2.9 in)
1925	90.7 mm (3.6 in)
1926	132.6 mm (5.2 in)
1927	80.5 mm (3.2 in)
1928	97.8 mm (3.9 in)
1929	88.4 mm (3.5 in)
1930	66.6 mm (2.6 in)
1931	124.0 mm (4.9 in)
1932	90.9 mm (3.6 in)
1933	62.1 mm (2.4 in)
1934	66.8 mm (2.6 in)
1935	102.7 mm (4.0 in)
1936	87.7 mm (3.5 in)
1937	112.0 mm (4.4 in)
1938	124.3 mm (4.9 in)
1939	183.2 mm (7.2 in)
1940	81.3 mm (3.2 in)
1941	142.9 mm (5.6 in)
1942	93.2 mm (3.7 in)
1943	133.4 mm (5.3 in)
1944	89.7 mm (3.5 in)
1945	84.1 mm (3.3 in)
1946	90.9 mm (3.6 in)
1947	100.8 mm (4.0 in)
1948	101.1 mm (4.0 in)
1949	196.7 mm (7.7 in)
1950	76.9 mm (3.0 in)
1951	99.0 mm (3.9 in)
1952	58.8 mm (2.3 in)
1953	45.5 mm (1.8 in)
1954	85.8 mm (3.4 in)
1955	146.1 mm (5.8 in)
1956	72.7 mm (2.9 in)
1957	119.6 mm (4.7 in)
1958	128.2 mm (5.0 in)
1959	78.3 mm (3.1 in)
1960	112.8 mm (4.4 in)
1961	177.5 mm (7.0 in)
1962	73.4 mm (2.9 in)
1963	99.4 mm (3.9 in)
1964	84.3 mm (3.3 in)
1965	130.3 mm (5.1 in)
1966	82.0 mm (3.2 in)
1967	84.1 mm (3.3 in)
1968	139.0 mm (5.5 in)
1969	171.7 mm (6.8 in)
1970	224.6 mm (8.8 in)
1971	45.4 mm (1.8 in)
1972	73.7 mm (2.9 in)
1973	120.2 mm (4.7 in)
1974	77.4 mm (3.0 in)
1975	73.2 mm (2.9 in)
1976	69.2 mm (2.7 in)
1977	133.1 mm (5.2 in)
1978	111.0 mm (4.4 in)
1979	68.4 mm (2.7 in)
1980	82.8 mm (3.3 in)
1981	153.1 mm (6.0 in)
1982	178.2 mm (7.0 in)
1983	108.0 mm (4.3 in)
1984	96.2 mm (3.8 in)
1985	108.7 mm (4.3 in)
1986	168.1 mm (6.6 in)
1987	136.2 mm (5.4 in)
1988	52.0 mm (2.0 in)
1989	84.3 mm (3.3 in)
1990	85.6 mm (3.4 in)
1992	113.0 mm (4.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at Quincy Mem Brg, 1892 to 1992. The record is 50 days in 1914, marked on the chart; the median year is 23 days.

Longest dry spell (CDD) at Quincy Mem Brg by year
Year	Longest dry spell (CDD)
1892	27 days
1893	33 days
1894	13 days
1910	25 days
1911	17 days
1912	27 days
1913	23 days
1914	50 days
1915	23 days
1916	44 days
1917	40 days
1918	22 days
1919	42 days
1920	19 days
1921	15 days
1922	19 days
1923	18 days
1924	20 days
1925	23 days
1926	14 days
1927	20 days
1928	19 days
1929	13 days
1930	30 days
1931	18 days
1932	17 days
1933	25 days
1934	36 days
1935	17 days
1936	26 days
1937	18 days
1938	23 days
1939	37 days
1940	23 days
1941	19 days
1942	29 days
1943	28 days
1944	26 days
1945	20 days
1946	22 days
1947	29 days
1948	28 days
1949	26 days
1950	29 days
1951	19 days
1952	27 days
1953	23 days
1954	21 days
1955	29 days
1956	29 days
1957	23 days
1958	35 days
1959	25 days
1960	27 days
1961	16 days
1962	17 days
1963	33 days
1964	29 days
1965	20 days
1966	20 days
1967	28 days
1968	17 days
1969	18 days
1970	15 days
1971	28 days
1972	18 days
1973	19 days
1974	15 days
1975	14 days
1976	31 days
1977	17 days
1978	21 days
1979	36 days
1980	23 days
1981	24 days
1982	20 days
1983	21 days
1984	40 days
1985	23 days
1986	24 days
1987	22 days
1988	22 days
1989	19 days
1990	12 days
1992	19 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

76 years, 1911 to 1989

A day with at least 66.8 mm (2.6 in) of rain is expected about once in 2 years. A day with at least 146.9 mm (5.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Quincy Mem Brg: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	66.8 mm (2.6 in)
5 years	88.9 mm (3.5 in)
10 years	103.3 mm (4.1 in)
25 years	121.1 mm (4.8 in)
50 years	134.2 mm (5.3 in)
100 years	146.9 mm (5.8 in)	Longer than the 76 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 76 years of values from 1911 to 1989.

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: 143.8 mm (5.7 in) in 1911; 128.8 mm (5.1 in) in 1968; 127.0 mm (5.0 in) in 1943.

Download the Data

Data for Quincy Mem Brg standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Quincy Mem Brg 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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

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	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	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

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	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	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