Morris River Weather Records (USC00115820)

Record envelope, standing records and threshold days for Morris River (USC00115820), Illinois, United States, with 66 years of record.

Key Facts for Morris River

Morris River (USC00115820) is a weather station in Illinois, United States at 41.35 latitude and -88.43 longitude, 146 m (479 ft) above sea level.
The station reports from 1916 to 1981, 66 years of record.
0 records set at Morris River still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Morris River set a daily record precipitation of 44.2 mm (1.7 in) on 28 July 1981.

About the Station

Location: Illinois, United States, 41.35 latitude, -88.43 longitude.
Elevation: 146 m (479 ft).
Period of record: 1916 to 1981, 66 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 Morris River. 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 Morris River, 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 Morris River still stand.

All-Time Record Progression

9 new records

9 all-time records were set at Morris River between 26 June 1978 and 28 January 1979. Each dot is a new record.

When Morris River set new all-time records
Date	Kind	Detail
1978-06-26	Record daily precipitation	Record daily precipitation 148.8 mm (5.9 in)
1979-01-13	Record snow depth	Record snow depth 43.2 cm (17.0 in)
1979-01-14	Record snow depth	Record snow depth 63.5 cm (25.0 in)
1979-01-16	Record snow depth	Record snow depth 66.0 cm (26.0 in)
1979-01-17	Record snow depth	Record snow depth 68.6 cm (27.0 in)
1979-01-19	Record snow depth	Record snow depth 73.7 cm (29.0 in)
1979-01-24	Record snow depth	Record snow depth 78.7 cm (31.0 in)
1979-01-25	Record snow depth	Record snow depth 81.3 cm (32.0 in)
1979-01-28	Record snow depth	Record snow depth 86.4 cm (34.0 in)

Wettest Day of Each Month

Jun: 148.8 mm (5.9 in)

The wettest day on record for each calendar month at Morris River. The most was 148.8 mm (5.9 in) on 26 June 1978.

Record daily precipitation for each month at Morris River
Month	Record daily precipitation (mm)	Date
Jan	40.6 mm (1.6 in)	12 January 1960
Feb	38.6 mm (1.5 in)	5 February 1927
Mar	65.5 mm (2.6 in)	15 March 1944
Apr	75.2 mm (3.0 in)	5 April 1947
May	75.9 mm (3.0 in)	12 May 1966
Jun	148.8 mm (5.9 in)	26 June 1978
Jul	94.5 mm (3.7 in)	9 July 1951
Aug	104.4 mm (4.1 in)	9 August 1924
Sep	92.7 mm (3.6 in)	4 September 1926
Oct	70.1 mm (2.8 in)	11 October 1931
Nov	61.0 mm (2.4 in)	30 November 1930
Dec	52.3 mm (2.1 in)	25 December 1965

Latest Records

Latest records at Morris River
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
28 July 1981	Morris River, US	daily rain	44.2 mm (1.7 in)	22.1 mm (0.9 in)	14 years	26 of 100 (Routine)
13 June 1981	Morris River, US	daily rain	54.6 mm (2.1 in)	25.9 mm (1.0 in)	20 years	31 of 100 (Routine)
13 April 1981	Morris River, US	daily rain	65.3 mm (2.6 in)	28.7 mm (1.1 in)	36 years	42 of 100 (Notable)
8 December 1980	Morris River, US	daily rain	29.2 mm (1.1 in)	0.5 mm (0.02 in)	14 years	10 of 100 (Routine)
17 October 1980	Morris River, US	daily rain	41.9 mm (1.6 in)	7.9 mm (0.31 in)	63 years	30 of 100 (Routine)
28 February 1980	Morris River, US	daily snowfall	6.4 cm (2.5 in)	1.3 cm (0.5 in)	34 years	20 of 100 (Routine)
25 February 1980	Morris River, US	daily snowfall	8.9 cm (3.5 in)	1.3 cm (0.5 in)	45 years	23 of 100 (Routine)
6 February 1980	Morris River, US	daily snowfall	12.7 cm (5.0 in)	4.6 cm (1.8 in)	56 years	37 of 100 (Notable)
5 February 1980	Morris River, US	daily snowfall (Tie)	7.6 cm (3.0 in)	tie	56 years	5 of 100 (Routine)
21 November 1979	Morris River, US	daily rain	38.1 mm (1.5 in)	14.0 mm (0.6 in)	36 years	32 of 100 (Routine)
20 August 1979	Morris River, US	daily rain	23.1 mm (0.9 in)	1.3 mm (0.05 in)	57 years	20 of 100 (Routine)
10 August 1979	Morris River, US	daily rain	35.6 mm (1.4 in)	4.9 mm (0.19 in)	45 years	22 of 100 (Routine)
31 July 1979	Morris River, US	daily rain	21.1 mm (0.8 in)	4.1 mm (0.16 in)	5 years	10 of 100 (Routine)
15 July 1979	Morris River, US	daily rain	27.4 mm (1.1 in)	7.8 mm (0.31 in)	6 years	13 of 100 (Routine)
26 April 1979	Morris River, US	daily rain	23.1 mm (0.9 in)	2.0 mm (0.08 in)	2 years	7 of 100 (Routine)
12 April 1979	Morris River, US	daily rain	61.5 mm (2.4 in)	28.5 mm (1.1 in)	34 years	42 of 100 (Notable)
30 March 1979	Morris River, US	daily rain	30.2 mm (1.2 in)	16.5 mm (0.6 in)	5 years	26 of 100 (Routine)
4 March 1979	Morris River, US	daily rain	32.0 mm (1.3 in)	7.6 mm (0.30 in)	58 years	31 of 100 (Routine)
3 March 1979	Morris River, US	daily snow depth	27.9 cm (11.0 in)	12.7 cm (5.0 in)	24 years	40 of 100 (Notable)
2 March 1979	Morris River, US	monthly snow depth (Tie)	30.5 cm (12.0 in)	tie	0 years	3 of 100 (Routine)

Extremes by Year

1916 to 1981

Yearly extremes at Morris River: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	148.8 mm (5.9 in)	1978	59.8 mm (2.4 in)	66
Wettest five days (Rx5day)	184.2 mm (7.3 in)	1961	90.0 mm (3.5 in)	66
Longest dry spell (CDD)	48 days	1969	21 days	66

Wettest day (Rx1day)

The wettest day of the year at Morris River, 1916 to 1981. The record is 148.8 mm (5.9 in) in 1978, marked on the chart; the median year is 59.8 mm (2.4 in).

Wettest day (Rx1day) at Morris River by year
Year	Wettest day (Rx1day)
1916	37.8 mm (1.5 in)
1917	34.0 mm (1.3 in)
1918	33.8 mm (1.3 in)
1919	50.3 mm (2.0 in)
1920	50.3 mm (2.0 in)
1921	82.8 mm (3.3 in)
1922	70.1 mm (2.8 in)
1923	38.4 mm (1.5 in)
1924	104.4 mm (4.1 in)
1925	43.7 mm (1.7 in)
1926	92.7 mm (3.6 in)
1927	64.0 mm (2.5 in)
1928	54.6 mm (2.1 in)
1929	79.2 mm (3.1 in)
1930	62.0 mm (2.4 in)
1931	70.1 mm (2.8 in)
1932	46.5 mm (1.8 in)
1933	71.4 mm (2.8 in)
1934	33.5 mm (1.3 in)
1935	50.3 mm (2.0 in)
1936	52.3 mm (2.1 in)
1937	53.1 mm (2.1 in)
1938	68.6 mm (2.7 in)
1939	47.2 mm (1.9 in)
1940	52.1 mm (2.1 in)
1941	69.9 mm (2.8 in)
1942	104.1 mm (4.1 in)
1943	57.9 mm (2.3 in)
1944	65.5 mm (2.6 in)
1945	45.7 mm (1.8 in)
1946	39.6 mm (1.6 in)
1947	75.2 mm (3.0 in)
1948	52.3 mm (2.1 in)
1949	53.3 mm (2.1 in)
1950	77.7 mm (3.1 in)
1951	94.5 mm (3.7 in)
1952	84.3 mm (3.3 in)
1953	52.8 mm (2.1 in)
1954	64.5 mm (2.5 in)
1955	69.6 mm (2.7 in)
1956	67.3 mm (2.6 in)
1957	68.3 mm (2.7 in)
1958	55.4 mm (2.2 in)
1959	47.0 mm (1.9 in)
1960	65.5 mm (2.6 in)
1961	89.2 mm (3.5 in)
1962	57.4 mm (2.3 in)
1963	38.9 mm (1.5 in)
1964	42.7 mm (1.7 in)
1965	58.4 mm (2.3 in)
1966	75.9 mm (3.0 in)
1967	52.8 mm (2.1 in)
1968	58.4 mm (2.3 in)
1969	63.2 mm (2.5 in)
1970	68.3 mm (2.7 in)
1971	37.3 mm (1.5 in)
1972	86.9 mm (3.4 in)
1973	60.7 mm (2.4 in)
1974	69.6 mm (2.7 in)
1975	58.9 mm (2.3 in)
1976	34.8 mm (1.4 in)
1977	91.9 mm (3.6 in)
1978	148.8 mm (5.9 in)
1979	61.5 mm (2.4 in)
1980	41.9 mm (1.6 in)
1981	65.3 mm (2.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at Morris River, 1916 to 1981. The record is 184.2 mm (7.3 in) in 1961, marked on the chart; the median year is 90.0 mm (3.5 in).

Wettest five days (Rx5day) at Morris River by year
Year	Wettest five days (Rx5day)
1916	59.4 mm (2.3 in)
1917	65.2 mm (2.6 in)
1918	66.6 mm (2.6 in)
1919	78.7 mm (3.1 in)
1920	84.8 mm (3.3 in)
1921	108.2 mm (4.3 in)
1922	78.2 mm (3.1 in)
1923	99.6 mm (3.9 in)
1924	131.0 mm (5.2 in)
1925	48.3 mm (1.9 in)
1926	117.3 mm (4.6 in)
1927	124.8 mm (4.9 in)
1928	70.9 mm (2.8 in)
1929	125.2 mm (4.9 in)
1930	67.9 mm (2.7 in)
1931	112.3 mm (4.4 in)
1932	72.7 mm (2.9 in)
1933	86.9 mm (3.4 in)
1934	67.0 mm (2.6 in)
1935	70.4 mm (2.8 in)
1936	132.8 mm (5.2 in)
1937	69.1 mm (2.7 in)
1938	116.1 mm (4.6 in)
1939	62.9 mm (2.5 in)
1940	89.6 mm (3.5 in)
1941	109.3 mm (4.3 in)
1942	116.8 mm (4.6 in)
1943	81.3 mm (3.2 in)
1944	102.1 mm (4.0 in)
1945	99.1 mm (3.9 in)
1946	62.0 mm (2.4 in)
1947	91.0 mm (3.6 in)
1948	60.7 mm (2.4 in)
1949	67.6 mm (2.7 in)
1950	135.9 mm (5.4 in)
1951	118.2 mm (4.7 in)
1952	96.7 mm (3.8 in)
1953	116.3 mm (4.6 in)
1954	109.7 mm (4.3 in)
1955	81.6 mm (3.2 in)
1956	112.1 mm (4.4 in)
1957	73.9 mm (2.9 in)
1958	78.7 mm (3.1 in)
1959	77.5 mm (3.1 in)
1960	70.6 mm (2.8 in)
1961	184.2 mm (7.3 in)
1962	59.9 mm (2.4 in)
1963	41.9 mm (1.6 in)
1964	69.6 mm (2.7 in)
1965	78.2 mm (3.1 in)
1966	114.2 mm (4.5 in)
1967	95.5 mm (3.8 in)
1968	95.7 mm (3.8 in)
1969	98.2 mm (3.9 in)
1970	115.3 mm (4.5 in)
1971	51.6 mm (2.0 in)
1972	127.3 mm (5.0 in)
1973	70.0 mm (2.8 in)
1974	103.7 mm (4.1 in)
1975	116.5 mm (4.6 in)
1976	90.4 mm (3.6 in)
1977	137.9 mm (5.4 in)
1978	154.9 mm (6.1 in)
1979	76.2 mm (3.0 in)
1980	43.7 mm (1.7 in)
1981	123.5 mm (4.9 in)

Longest dry spell (CDD)

The longest dry spell of the year at Morris River, 1916 to 1981. The record is 48 days in 1969, marked on the chart; the median year is 21 days.

Longest dry spell (CDD) at Morris River by year
Year	Longest dry spell (CDD)
1916	38 days
1917	30 days
1918	16 days
1919	33 days
1920	22 days
1921	13 days
1922	16 days
1923	17 days
1924	24 days
1925	22 days
1926	14 days
1927	19 days
1928	21 days
1929	21 days
1930	28 days
1931	18 days
1932	20 days
1933	34 days
1934	25 days
1935	14 days
1936	18 days
1937	16 days
1938	22 days
1939	29 days
1940	36 days
1941	20 days
1942	28 days
1943	25 days
1944	31 days
1945	19 days
1946	24 days
1947	26 days
1948	21 days
1949	13 days
1950	30 days
1951	17 days
1952	33 days
1953	23 days
1954	23 days
1955	21 days
1956	25 days
1957	29 days
1958	20 days
1959	21 days
1960	18 days
1961	19 days
1962	18 days
1963	16 days
1964	25 days
1965	20 days
1966	26 days
1967	25 days
1968	20 days
1969	48 days
1970	21 days
1971	27 days
1972	14 days
1973	15 days
1974	15 days
1975	15 days
1976	25 days
1977	11 days
1978	16 days
1979	33 days
1980	15 days
1981	23 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

63 years, 1917 to 1979

A day with at least 59.7 mm (2.4 in) of rain is expected about once in 2 years. A day with at least 126.3 mm (5.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Morris River: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	59.7 mm (2.4 in)
5 years	77.6 mm (3.1 in)
10 years	89.4 mm (3.5 in)
25 years	104.3 mm (4.1 in)
50 years	115.3 mm (4.5 in)
100 years	126.3 mm (5.0 in)	Longer than the 63 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, 63 years of values from 1917 to 1979.

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: 148.8 mm (5.9 in) in 1978; 104.4 mm (4.1 in) in 1924; 104.1 mm (4.1 in) in 1942.

Download the Data

Data for Morris River standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Morris River 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 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