Peotone Weather Records (USC00116725)

Record envelope, standing records and threshold days for Peotone (USC00116725), Illinois, United States, with 87 years of record.

Key Facts for Peotone

Peotone (USC00116725) is a weather station in Illinois, United States at 41.33 latitude and -87.79 longitude, 219 m (718 ft) above sea level.
The station reports from 1940 to 2026, 87 years of record.
338 records set at Peotone still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Peotone set a daily record precipitation of 39.4 mm (1.6 in) on 4 July 2026.

About the Station

Location: Illinois, United States, 41.33 latitude, -87.79 longitude.
Elevation: 219 m (718 ft).
Period of record: 1940 to 2026, 87 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 Peotone. 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 Peotone, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	-17.8 C (0.0 F)	n/a	n/a
Feb	n/a	-19.4 C (-2.9 F)	n/a	n/a
Mar	n/a	-12.2 C (10.0 F)	n/a	n/a
Apr	-17.2 C (1.0 F)	-4.4 C (24.1 F)	n/a	n/a
May	n/a	2.2 C (36.0 F)	n/a	n/a
Jun	n/a	10.0 C (50.0 F)	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	-6.7 C (19.9 F)	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Which Years Hold Standing Records

338 standing records

338 records at Peotone still stand. 1944 holds the most, with 308.

All-Time Record Progression

3 new records

3 all-time records were set at Peotone between 14 January 1979 and 2 February 2011. Each dot is a new record.

When Peotone set new all-time records
Date	Kind	Detail
1979-01-14	Record daily snowfall	Record daily snowfall 35.6 cm (14.0 in)
1979-01-28	Record snow depth	Record snow depth 73.7 cm (29.0 in)
2011-02-02	Record daily snowfall	Record daily snowfall 40.6 cm (16.0 in)

Wettest Day of Each Month

Jul: 242.8 mm (9.6 in)

The wettest day on record for each calendar month at Peotone. The most was 242.8 mm (9.6 in) on 13 July 1957.

Record daily precipitation for each month at Peotone
Month	Record daily precipitation (mm)	Date
Jan	86.1 mm (3.4 in)	8 January 2008
Feb	137.2 mm (5.4 in)	3 February 1983
Mar	62.7 mm (2.5 in)	25 March 1954
Apr	97.5 mm (3.8 in)	14 April 1981
May	134.4 mm (5.3 in)	19 May 1987
Jun	201.2 mm (7.9 in)	13 June 1972
Jul	242.8 mm (9.6 in)	13 July 1957
Aug	140.7 mm (5.5 in)	24 August 2007
Sep	199.9 mm (7.9 in)	28 September 2019
Oct	93.0 mm (3.7 in)	25 October 2021
Nov	121.7 mm (4.8 in)	27 November 1990
Dec	98.8 mm (3.9 in)	3 December 1982

Period of Record Coverage

1970 to 1970

1 years of record at Peotone, 1970 to 1970. 1 years have data for under 90 percent of days and are left out of rankings: 1970.

Latest Records

Latest records at Peotone
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
4 July 2026	Peotone, US	daily rain	39.4 mm (1.6 in)	5.6 mm (0.22 in)	47 years	25 of 100 (Routine)
16 March 2026	Peotone, US	daily rain	33.3 mm (1.3 in)	1.3 mm (0.05 in)	41 years	21 of 100 (Routine)
7 March 2026	Peotone, US	daily rain	29.2 mm (1.1 in)	11.9 mm (0.5 in)	31 years	31 of 100 (Routine)
29 December 2025	Peotone, US	daily rain	58.2 mm (2.3 in)	6.4 mm (0.25 in)	35 years	24 of 100 (Routine)
3 December 2025	Peotone, US	daily snow depth	22.9 cm (9.0 in)	12.7 cm (5.0 in)	47 years	35 of 100 (Notable)
2 December 2025	Peotone, US	daily snow depth	25.4 cm (10.0 in)	15.2 cm (6.0 in)	60 years	42 of 100 (Notable)
2 December 2025	Peotone, US	daily snowfall	7.9 cm (3.1 in)	0.3 cm (0.1 in)	72 years	29 of 100 (Routine)
1 December 2025	Peotone, US	daily snow depth (Tie)	20.3 cm (8.0 in)	tie	48 years	5 of 100 (Routine)
30 November 2025	Peotone, US	monthly snowfall	20.1 cm (7.9 in)	4.9 cm (1.9 in)	83 years	55 of 100 (Notable)
30 November 2025	Peotone, US	monthly snow depth	22.9 cm (9.0 in)	2.6 cm (1.0 in)	74 years	47 of 100 (Notable)
10 November 2025	Peotone, US	daily snowfall	6.9 cm (2.7 in)	6.4 cm (2.5 in)	82 years	49 of 100 (Notable)
10 November 2025	Peotone, US	daily snow depth	7.6 cm (3.0 in)	5.1 cm (2.0 in)	74 years	20 of 100 (Routine)
5 March 2025	Peotone, US	daily rain	36.6 mm (1.4 in)	3.8 mm (0.15 in)	20 years	18 of 100 (Routine)
15 July 2024	Peotone, US	daily rain	62.0 mm (2.4 in)	40.9 mm (1.6 in)	62 years	48 of 100 (Notable)
10 July 2024	Peotone, US	daily rain	30.2 mm (1.2 in)	4.8 mm (0.19 in)	20 years	16 of 100 (Routine)
23 June 2024	Peotone, US	daily rain	41.1 mm (1.6 in)	3.8 mm (0.15 in)	62 years	28 of 100 (Routine)
1 April 2024	Peotone, US	daily rain	61.7 mm (2.4 in)	11.7 mm (0.5 in)	57 years	34 of 100 (Routine)
9 March 2024	Peotone, US	daily rain	33.0 mm (1.3 in)	2.5 mm (0.10 in)	26 years	18 of 100 (Routine)
12 January 2024	Peotone, US	daily snowfall	11.2 cm (4.4 in)	1.0 cm (0.4 in)	28 years	18 of 100 (Routine)
17 December 2023	Peotone, US	daily rain	20.6 mm (0.8 in)	9.7 mm (0.38 in)	28 years	20 of 100 (Routine)

Extremes by Year

1940 to 2026

Yearly extremes at Peotone: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	-17.2 C (1.0 F)	1970	-17.2 C (1.0 F)	1
Coldest night (TNn)	-19.4 C (-2.9 F)	1944	-13.0 C (8.5 F)	2
Wettest day (Rx1day)	242.8 mm (9.6 in)	1957	68.3 mm (2.7 in)	87
Wettest five days (Rx5day)	273.5 mm (10.8 in)	2007	108.8 mm (4.3 in)	87
Longest dry spell (CDD)	52 days	1969	20 days	87

Hottest day (TXx)

The hottest day of the year at Peotone, 1940 to 2026. The record is -17.2 C (1.0 F) in 1970, marked on the chart; the median year is -17.2 C (1.0 F).

Hottest day (TXx) at Peotone by year
Year	Hottest day (TXx)
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	-17.2 C (1.0 F)
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 Peotone, 1940 to 2026. The record is -19.4 C (-2.9 F) in 1944, marked on the chart; the median year is -13.0 C (8.5 F).

Coldest night (TNn) at Peotone by year
Year	Coldest night (TNn)
1940	n/a
1941	n/a
1942	n/a
1943	-6.7 C (19.9 F)
1944	-19.4 C (-2.9 F)
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 Peotone, 1940 to 2026. The record is 242.8 mm (9.6 in) in 1957, marked on the chart; the median year is 68.3 mm (2.7 in).

Wettest day (Rx1day) at Peotone by year
Year	Wettest day (Rx1day)
1940	19.8 mm (0.8 in)
1941	63.5 mm (2.5 in)
1942	58.4 mm (2.3 in)
1943	54.9 mm (2.2 in)
1944	49.3 mm (1.9 in)
1945	41.1 mm (1.6 in)
1946	50.8 mm (2.0 in)
1947	78.0 mm (3.1 in)
1948	76.5 mm (3.0 in)
1949	52.1 mm (2.1 in)
1950	42.7 mm (1.7 in)
1951	54.6 mm (2.1 in)
1952	116.6 mm (4.6 in)
1953	58.9 mm (2.3 in)
1954	88.9 mm (3.5 in)
1955	81.0 mm (3.2 in)
1956	26.4 mm (1.0 in)
1957	242.8 mm (9.6 in)
1958	64.3 mm (2.5 in)
1959	87.6 mm (3.4 in)
1960	42.9 mm (1.7 in)
1961	58.9 mm (2.3 in)
1962	59.4 mm (2.3 in)
1963	41.4 mm (1.6 in)
1964	50.8 mm (2.0 in)
1965	64.0 mm (2.5 in)
1966	61.2 mm (2.4 in)
1967	50.0 mm (2.0 in)
1968	104.6 mm (4.1 in)
1969	66.0 mm (2.6 in)
1970	82.6 mm (3.3 in)
1971	70.6 mm (2.8 in)
1972	201.2 mm (7.9 in)
1973	73.7 mm (2.9 in)
1974	108.5 mm (4.3 in)
1975	78.0 mm (3.1 in)
1976	54.6 mm (2.1 in)
1977	53.3 mm (2.1 in)
1978	112.0 mm (4.4 in)
1979	63.5 mm (2.5 in)
1980	95.5 mm (3.8 in)
1981	97.5 mm (3.8 in)
1982	98.8 mm (3.9 in)
1983	137.2 mm (5.4 in)
1984	50.8 mm (2.0 in)
1985	78.7 mm (3.1 in)
1986	72.4 mm (2.9 in)
1987	134.4 mm (5.3 in)
1988	45.2 mm (1.8 in)
1989	104.1 mm (4.1 in)
1990	121.7 mm (4.8 in)
1991	47.2 mm (1.9 in)
1992	98.8 mm (3.9 in)
1993	82.0 mm (3.2 in)
1994	72.1 mm (2.8 in)
1995	76.5 mm (3.0 in)
1996	108.5 mm (4.3 in)
1997	85.6 mm (3.4 in)
1998	77.5 mm (3.1 in)
1999	52.6 mm (2.1 in)
2000	96.5 mm (3.8 in)
2001	70.6 mm (2.8 in)
2002	72.4 mm (2.9 in)
2003	52.1 mm (2.1 in)
2004	67.3 mm (2.6 in)
2005	64.8 mm (2.6 in)
2006	57.2 mm (2.3 in)
2007	140.7 mm (5.5 in)
2008	91.4 mm (3.6 in)
2009	74.9 mm (2.9 in)
2010	67.6 mm (2.7 in)
2011	113.3 mm (4.5 in)
2012	68.1 mm (2.7 in)
2013	67.3 mm (2.6 in)
2014	68.3 mm (2.7 in)
2015	66.0 mm (2.6 in)
2016	65.3 mm (2.6 in)
2017	101.6 mm (4.0 in)
2018	70.9 mm (2.8 in)
2019	199.9 mm (7.9 in)
2020	61.0 mm (2.4 in)
2021	93.0 mm (3.7 in)
2022	43.2 mm (1.7 in)
2023	73.7 mm (2.9 in)
2024	62.0 mm (2.4 in)
2025	58.2 mm (2.3 in)
2026	61.5 mm (2.4 in)

Wettest five days (Rx5day)

The wettest five days of the year at Peotone, 1940 to 2026. The record is 273.5 mm (10.8 in) in 2007, marked on the chart; the median year is 108.8 mm (4.3 in).

Wettest five days (Rx5day) at Peotone by year
Year	Wettest five days (Rx5day)
1940	27.7 mm (1.1 in)
1941	179.1 mm (7.1 in)
1942	84.1 mm (3.3 in)
1943	94.2 mm (3.7 in)
1944	96.8 mm (3.8 in)
1945	68.9 mm (2.7 in)
1946	67.6 mm (2.7 in)
1947	62.5 mm (2.5 in)
1948	104.2 mm (4.1 in)
1949	102.2 mm (4.0 in)
1950	78.0 mm (3.1 in)
1951	74.0 mm (2.9 in)
1952	157.0 mm (6.2 in)
1953	93.7 mm (3.7 in)
1954	154.9 mm (6.1 in)
1955	81.0 mm (3.2 in)
1956	59.1 mm (2.3 in)
1957	242.8 mm (9.6 in)
1958	126.2 mm (5.0 in)
1959	120.7 mm (4.8 in)
1960	92.5 mm (3.6 in)
1961	118.3 mm (4.7 in)
1962	103.6 mm (4.1 in)
1963	59.7 mm (2.4 in)
1964	66.5 mm (2.6 in)
1965	96.0 mm (3.8 in)
1966	99.8 mm (3.9 in)
1967	66.8 mm (2.6 in)
1968	124.1 mm (4.9 in)
1969	104.6 mm (4.1 in)
1970	155.8 mm (6.1 in)
1971	84.4 mm (3.3 in)
1972	245.9 mm (9.7 in)
1973	105.4 mm (4.1 in)
1974	188.8 mm (7.4 in)
1975	131.4 mm (5.2 in)
1976	92.0 mm (3.6 in)
1977	95.5 mm (3.8 in)
1978	122.4 mm (4.8 in)
1979	104.9 mm (4.1 in)
1980	144.8 mm (5.7 in)
1981	170.7 mm (6.7 in)
1982	126.7 mm (5.0 in)
1983	156.3 mm (6.2 in)
1984	86.4 mm (3.4 in)
1985	122.1 mm (4.8 in)
1986	119.4 mm (4.7 in)
1987	160.0 mm (6.3 in)
1988	69.3 mm (2.7 in)
1989	109.2 mm (4.3 in)
1990	165.6 mm (6.5 in)
1991	110.0 mm (4.3 in)
1992	210.0 mm (8.3 in)
1993	149.4 mm (5.9 in)
1994	95.2 mm (3.7 in)
1995	125.6 mm (4.9 in)
1996	215.4 mm (8.5 in)
1997	128.0 mm (5.0 in)
1998	115.7 mm (4.6 in)
1999	67.8 mm (2.7 in)
2000	119.8 mm (4.7 in)
2001	98.0 mm (3.9 in)
2002	134.9 mm (5.3 in)
2003	89.9 mm (3.5 in)
2004	129.5 mm (5.1 in)
2005	75.7 mm (3.0 in)
2006	83.5 mm (3.3 in)
2007	273.5 mm (10.8 in)
2008	236.7 mm (9.3 in)
2009	107.4 mm (4.2 in)
2010	71.4 mm (2.8 in)
2011	78.3 mm (3.1 in)
2012	68.1 mm (2.7 in)
2013	138.7 mm (5.5 in)
2014	146.6 mm (5.8 in)
2015	135.2 mm (5.3 in)
2016	110.3 mm (4.3 in)
2017	176.0 mm (6.9 in)
2018	108.8 mm (4.3 in)
2019	220.0 mm (8.7 in)
2020	134.2 mm (5.3 in)
2021	125.0 mm (4.9 in)
2022	61.9 mm (2.4 in)
2023	74.8 mm (2.9 in)
2024	100.3 mm (3.9 in)
2025	97.3 mm (3.8 in)
2026	178.1 mm (7.0 in)

Longest dry spell (CDD)

The longest dry spell of the year at Peotone, 1940 to 2026. The record is 52 days in 1969, marked on the chart; the median year is 20 days.

Longest dry spell (CDD) at Peotone by year
Year	Longest dry spell (CDD)
1940	8 days
1941	21 days
1942	28 days
1943	25 days
1944	26 days
1945	17 days
1946	23 days
1947	21 days
1948	25 days
1949	22 days
1950	25 days
1951	19 days
1952	27 days
1953	22 days
1954	25 days
1955	21 days
1956	19 days
1957	21 days
1958	19 days
1959	28 days
1960	18 days
1961	16 days
1962	18 days
1963	17 days
1964	24 days
1965	16 days
1966	22 days
1967	20 days
1968	20 days
1969	52 days
1970	39 days
1971	27 days
1972	20 days
1973	21 days
1974	15 days
1975	14 days
1976	26 days
1977	17 days
1978	16 days
1979	16 days
1980	20 days
1981	21 days
1982	21 days
1983	17 days
1984	16 days
1985	20 days
1986	31 days
1987	29 days
1988	37 days
1989	21 days
1990	14 days
1991	28 days
1992	15 days
1993	20 days
1994	17 days
1995	34 days
1996	20 days
1997	21 days
1998	13 days
1999	25 days
2000	23 days
2001	19 days
2002	19 days
2003	20 days
2004	20 days
2005	24 days
2006	16 days
2007	17 days
2008	24 days
2009	22 days
2010	13 days
2011	12 days
2012	13 days
2013	12 days
2014	13 days
2015	34 days
2016	13 days
2017	20 days
2018	17 days
2019	13 days
2020	16 days
2021	16 days
2022	28 days
2023	18 days
2024	25 days
2025	17 days
2026	22 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

80 years, 1941 to 2025

A day with at least 69.9 mm (2.8 in) of rain is expected about once in 2 years. A day with at least 219.6 mm (8.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Peotone: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	69.9 mm (2.8 in)
5 years	96.9 mm (3.8 in)
10 years	119.0 mm (4.7 in)
25 years	153.2 mm (6.0 in)
50 years	183.8 mm (7.2 in)
100 years	219.6 mm (8.6 in)	Longer than the 80 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, 80 years of values from 1941 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: 242.8 mm (9.6 in) in 1957; 201.2 mm (7.9 in) in 1972; 199.9 mm (7.9 in) in 2019.

Download the Data

Data for Peotone standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Peotone 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 2026-10-13 (13 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).