Grand Twr 2 N Weather Records (USC00113595)

Record envelope, standing records and threshold days for Grand Twr 2 N (USC00113595), Illinois, United States, with 70 years of record.

Key Facts for Grand Twr 2 N

Grand Twr 2 N (USC00113595) is a weather station in Illinois, United States at 37.66 latitude and -89.51 longitude, 117 m (383 ft) above sea level.
The station reports from 1940 to 2009, 70 years of record.
1,464 records set at Grand Twr 2 N still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Grand Twr 2 N set a daily record precipitation of 46.2 mm (1.8 in) on 28 April 2009.

About the Station

Location: Illinois, United States, 37.66 latitude, -89.51 longitude.
Elevation: 117 m (383 ft).
Period of record: 1940 to 2009, 70 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 Grand Twr 2 N. 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 Grand Twr 2 N, 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)	-17.8 C (0.0 F)	n/a	n/a
Feb	21.7 C (71.1 F)	-13.3 C (8.1 F)	n/a	n/a
Mar	28.3 C (82.9 F)	-8.3 C (17.1 F)	n/a	n/a
Apr	30.6 C (87.1 F)	-3.3 C (26.1 F)	n/a	n/a
May	36.7 C (98.1 F)	2.2 C (36.0 F)	n/a	n/a
Jun	36.7 C (98.1 F)	8.9 C (48.0 F)	n/a	n/a
Jul	38.3 C (100.9 F)	12.8 C (55.0 F)	n/a	n/a
Aug	40.0 C (104.0 F)	9.4 C (48.9 F)	n/a	n/a
Sep	35.6 C (96.1 F)	2.8 C (37.0 F)	n/a	n/a
Oct	33.3 C (91.9 F)	-2.2 C (28.0 F)	n/a	n/a
Nov	30.0 C (86.0 F)	-10.6 C (12.9 F)	n/a	n/a
Dec	21.1 C (70.0 F)	-16.7 C (1.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Grand Twr 2 N still stand. 2006 holds the most, with 239.

All-Time Record Progression

4 new records

4 all-time records were set at Grand Twr 2 N between 17 January 1978 and 15 March 1999. Each dot is a new record.

When Grand Twr 2 N set new all-time records
Date	Kind	Detail
1978-01-17	Record snow depth	Record snow depth 33.0 cm (13.0 in)
1978-01-18	Record snow depth	Record snow depth 38.1 cm (15.0 in)
1978-01-20	Record snow depth	Record snow depth 40.6 cm (16.0 in)
1999-03-15	Record daily snowfall	Record daily snowfall 30.5 cm (12.0 in)

Wettest Day of Each Month

Jun: 176.8 mm (7.0 in)

The wettest day on record for each calendar month at Grand Twr 2 N. The most was 176.8 mm (7.0 in) on 23 June 1969.

Record daily precipitation for each month at Grand Twr 2 N
Month	Record daily precipitation (mm)	Date
Jan	127.5 mm (5.0 in)	4 January 1950
Feb	117.9 mm (4.6 in)	26 February 1945
Mar	132.1 mm (5.2 in)	28 March 1977
Apr	164.6 mm (6.5 in)	30 April 1983
May	139.2 mm (5.5 in)	22 May 1957
Jun	176.8 mm (7.0 in)	23 June 1969
Jul	137.2 mm (5.4 in)	3 July 1965
Aug	138.4 mm (5.4 in)	29 August 1974
Sep	131.1 mm (5.2 in)	13 September 1949
Oct	103.4 mm (4.1 in)	22 October 1984
Nov	161.3 mm (6.4 in)	15 November 1993
Dec	133.6 mm (5.3 in)	3 December 1982

Period of Record Coverage

2002 to 2009

8 years of record at Grand Twr 2 N, 2002 to 2009. 3 years have data for under 90 percent of days and are left out of rankings: 2002, 2003, 2009.

Latest Records

Latest records at Grand Twr 2 N
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
28 April 2009	Grand Twr 2 N, US	daily rain	46.2 mm (1.8 in)	20.3 mm (0.8 in)	39 years	31 of 100 (Routine)
31 January 2009	Grand Twr 2 N, US	daily snow depth	15.2 cm (6.0 in)	2.5 cm (1.0 in)	30 years	18 of 100 (Routine)
30 January 2009	Grand Twr 2 N, US	daily snow depth	20.3 cm (8.0 in)	7.6 cm (3.0 in)	30 years	26 of 100 (Routine)
29 January 2009	Grand Twr 2 N, US	daily snow depth	25.4 cm (10.0 in)	12.7 cm (5.0 in)	30 years	34 of 100 (Routine)
28 January 2009	Grand Twr 2 N, US	daily snowfall	20.3 cm (8.0 in)	12.7 cm (5.0 in)	64 years	56 of 100 (Notable)
28 January 2009	Grand Twr 2 N, US	daily snow depth	25.4 cm (10.0 in)	17.8 cm (7.0 in)	64 years	52 of 100 (Notable)
31 July 2008	Grand Twr 2 N, US	daily rain	78.5 mm (3.1 in)	31.3 mm (1.2 in)	32 years	33 of 100 (Routine)
11 April 2008	Grand Twr 2 N, US	daily rain	40.6 mm (1.6 in)	1.2 mm (0.05 in)	61 years	24 of 100 (Routine)
19 March 2008	Grand Twr 2 N, US	daily rain	118.9 mm (4.7 in)	64.3 mm (2.5 in)	65 years	65 of 100 (Major)
18 March 2008	Grand Twr 2 N, US	daily rain	45.0 mm (1.8 in)	11.0 mm (0.4 in)	59 years	30 of 100 (Routine)
23 February 2008	Grand Twr 2 N, US	daily snow depth (Tie)	2.5 cm (1.0 in)	tie	44 years	4 of 100 (Routine)
22 February 2008	Grand Twr 2 N, US	daily snow depth (Tie)	2.5 cm (1.0 in)	tie	44 years	4 of 100 (Routine)
15 February 2008	Grand Twr 2 N, US	daily snow depth (Tie)	5.1 cm (2.0 in)	tie	41 years	4 of 100 (Routine)
12 February 2008	Grand Twr 2 N, US	daily snowfall	2.5 cm (1.0 in)	2.5 cm (1.0 in)	66 years	20 of 100 (Routine)
2 February 2008	Grand Twr 2 N, US	daily snowfall	10.2 cm (4.0 in)	5.1 cm (2.0 in)	41 years	31 of 100 (Routine)
15 December 2007	Grand Twr 2 N, US	daily snowfall	5.3 cm (2.1 in)	0.2 cm (0.1 in)	17 years	11 of 100 (Routine)
15 December 2007	Grand Twr 2 N, US	daily snow depth (Tie)	5.1 cm (2.0 in)	tie	17 years	2 of 100 (Routine)
18 October 2007	Grand Twr 2 N, US	daily rain	82.8 mm (3.3 in)	55.6 mm (2.2 in)	25 years	53 of 100 (Notable)
25 February 2007	Grand Twr 2 N, US	daily rain	41.1 mm (1.6 in)	6.8 mm (0.27 in)	21 years	17 of 100 (Routine)
28 October 2006	Grand Twr 2 N, US	daily rain	42.2 mm (1.7 in)	13.0 mm (0.5 in)	9 years	17 of 100 (Routine)

Extremes by Year

1940 to 2009

Yearly extremes at Grand Twr 2 N: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	40.0 C (104.0 F)	2002	37.5 C (99.5 F)	8
Coldest night (TNn)	-17.8 C (0.0 F)	2003	-14.7 C (5.5 F)	8
Wettest day (Rx1day)	176.8 mm (7.0 in)	1969	78.4 mm (3.1 in)	70
Wettest five days (Rx5day)	285.5 mm (11.2 in)	1957	109.4 mm (4.3 in)	70
Longest dry spell (CDD)	50 days	1964	22 days	70

Hottest day (TXx)

The hottest day of the year at Grand Twr 2 N, 1940 to 2009. The record is 40.0 C (104.0 F) in 2002, marked on the chart; the median year is 37.5 C (99.5 F).

Hottest day (TXx) at Grand Twr 2 N 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	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	40.0 C (104.0 F)
2003	40.0 C (104.0 F)
2004	38.3 C (100.9 F)
2005	36.7 C (98.1 F)
2006	36.7 C (98.1 F)
2007	39.4 C (102.9 F)
2008	36.7 C (98.1 F)
2009	35.6 C (96.1 F)

Coldest night (TNn)

The coldest night of the year at Grand Twr 2 N, 1940 to 2009. The record is -17.8 C (0.0 F) in 2003, marked on the chart; the median year is -14.7 C (5.5 F).

Coldest night (TNn) at Grand Twr 2 N by year
Year	Coldest night (TNn)
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	-13.9 C (7.0 F)
2003	-17.8 C (0.0 F)
2004	-17.8 C (0.0 F)
2005	-15.0 C (5.0 F)
2006	-13.3 C (8.1 F)
2007	-13.3 C (8.1 F)
2008	-14.4 C (6.1 F)
2009	-16.7 C (1.9 F)

Wettest day (Rx1day)

The wettest day of the year at Grand Twr 2 N, 1940 to 2009. The record is 176.8 mm (7.0 in) in 1969, marked on the chart; the median year is 78.4 mm (3.1 in).

Wettest day (Rx1day) at Grand Twr 2 N by year
Year	Wettest day (Rx1day)
1940	36.3 mm (1.4 in)
1941	72.1 mm (2.8 in)
1942	65.8 mm (2.6 in)
1943	100.6 mm (4.0 in)
1944	68.8 mm (2.7 in)
1945	117.9 mm (4.6 in)
1946	62.7 mm (2.5 in)
1947	50.5 mm (2.0 in)
1948	97.3 mm (3.8 in)
1949	131.1 mm (5.2 in)
1950	127.5 mm (5.0 in)
1951	85.6 mm (3.4 in)
1952	95.5 mm (3.8 in)
1953	120.4 mm (4.7 in)
1954	85.3 mm (3.4 in)
1955	74.7 mm (2.9 in)
1956	69.3 mm (2.7 in)
1957	139.2 mm (5.5 in)
1958	93.2 mm (3.7 in)
1959	132.1 mm (5.2 in)
1960	53.8 mm (2.1 in)
1961	66.3 mm (2.6 in)
1962	53.1 mm (2.1 in)
1963	43.2 mm (1.7 in)
1964	91.9 mm (3.6 in)
1965	137.2 mm (5.4 in)
1966	53.6 mm (2.1 in)
1967	75.7 mm (3.0 in)
1968	52.1 mm (2.1 in)
1969	176.8 mm (7.0 in)
1970	35.1 mm (1.4 in)
1971	77.7 mm (3.1 in)
1972	70.6 mm (2.8 in)
1973	89.9 mm (3.5 in)
1974	138.4 mm (5.4 in)
1975	46.0 mm (1.8 in)
1976	88.4 mm (3.5 in)
1977	132.1 mm (5.2 in)
1978	86.4 mm (3.4 in)
1979	83.1 mm (3.3 in)
1980	60.2 mm (2.4 in)
1981	67.8 mm (2.7 in)
1982	133.6 mm (5.3 in)
1983	164.6 mm (6.5 in)
1984	103.4 mm (4.1 in)
1985	77.5 mm (3.1 in)
1986	75.4 mm (3.0 in)
1987	64.0 mm (2.5 in)
1988	80.5 mm (3.2 in)
1989	57.7 mm (2.3 in)
1990	56.6 mm (2.2 in)
1991	72.1 mm (2.8 in)
1992	85.1 mm (3.4 in)
1993	161.3 mm (6.4 in)
1994	81.3 mm (3.2 in)
1995	57.7 mm (2.3 in)
1996	82.8 mm (3.3 in)
1997	105.4 mm (4.1 in)
1998	44.7 mm (1.8 in)
1999	85.3 mm (3.4 in)
2000	121.9 mm (4.8 in)
2001	74.9 mm (2.9 in)
2002	71.1 mm (2.8 in)
2003	50.5 mm (2.0 in)
2004	57.2 mm (2.3 in)
2005	79.0 mm (3.1 in)
2006	70.1 mm (2.8 in)
2007	82.8 mm (3.3 in)
2008	118.9 mm (4.7 in)
2009	52.6 mm (2.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Grand Twr 2 N, 1940 to 2009. The record is 285.5 mm (11.2 in) in 1957, marked on the chart; the median year is 109.4 mm (4.3 in).

Wettest five days (Rx5day) at Grand Twr 2 N by year
Year	Wettest five days (Rx5day)
1940	72.1 mm (2.8 in)
1941	81.2 mm (3.2 in)
1942	88.9 mm (3.5 in)
1943	134.1 mm (5.3 in)
1944	76.4 mm (3.0 in)
1945	170.4 mm (6.7 in)
1946	108.9 mm (4.3 in)
1947	70.9 mm (2.8 in)
1948	115.6 mm (4.6 in)
1949	143.6 mm (5.7 in)
1950	166.4 mm (6.6 in)
1951	101.1 mm (4.0 in)
1952	95.5 mm (3.8 in)
1953	127.0 mm (5.0 in)
1954	88.7 mm (3.5 in)
1955	92.0 mm (3.6 in)
1956	117.6 mm (4.6 in)
1957	285.5 mm (11.2 in)
1958	153.4 mm (6.0 in)
1959	164.8 mm (6.5 in)
1960	72.7 mm (2.9 in)
1961	160.4 mm (6.3 in)
1962	90.9 mm (3.6 in)
1963	84.3 mm (3.3 in)
1964	159.3 mm (6.3 in)
1965	152.2 mm (6.0 in)
1966	100.2 mm (3.9 in)
1967	76.5 mm (3.0 in)
1968	72.4 mm (2.9 in)
1969	184.7 mm (7.3 in)
1970	98.1 mm (3.9 in)
1971	107.2 mm (4.2 in)
1972	125.0 mm (4.9 in)
1973	186.2 mm (7.3 in)
1974	141.7 mm (5.6 in)
1975	92.4 mm (3.6 in)
1976	96.5 mm (3.8 in)
1977	151.4 mm (6.0 in)
1978	142.8 mm (5.6 in)
1979	89.4 mm (3.5 in)
1980	67.1 mm (2.6 in)
1981	106.7 mm (4.2 in)
1982	226.6 mm (8.9 in)
1983	235.7 mm (9.3 in)
1984	148.6 mm (5.9 in)
1985	144.8 mm (5.7 in)
1986	108.4 mm (4.3 in)
1987	88.4 mm (3.5 in)
1988	93.2 mm (3.7 in)
1989	90.0 mm (3.5 in)
1990	103.6 mm (4.1 in)
1991	117.2 mm (4.6 in)
1992	85.1 mm (3.4 in)
1993	209.3 mm (8.2 in)
1994	165.7 mm (6.5 in)
1995	108.2 mm (4.3 in)
1996	132.5 mm (5.2 in)
1997	133.6 mm (5.3 in)
1998	76.4 mm (3.0 in)
1999	108.0 mm (4.3 in)
2000	198.1 mm (7.8 in)
2001	122.4 mm (4.8 in)
2002	113.8 mm (4.5 in)
2003	102.3 mm (4.0 in)
2004	109.8 mm (4.3 in)
2005	143.0 mm (5.6 in)
2006	227.0 mm (8.9 in)
2007	99.6 mm (3.9 in)
2008	167.5 mm (6.6 in)
2009	102.6 mm (4.0 in)

Longest dry spell (CDD)

The longest dry spell of the year at Grand Twr 2 N, 1940 to 2009. The record is 50 days in 1964, marked on the chart; the median year is 22 days.

Longest dry spell (CDD) at Grand Twr 2 N by year
Year	Longest dry spell (CDD)
1940	20 days
1941	19 days
1942	35 days
1943	33 days
1944	33 days
1945	22 days
1946	18 days
1947	24 days
1948	31 days
1949	48 days
1950	20 days
1951	15 days
1952	24 days
1953	34 days
1954	19 days
1955	22 days
1956	21 days
1957	22 days
1958	17 days
1959	15 days
1960	18 days
1961	16 days
1962	17 days
1963	29 days
1964	50 days
1965	21 days
1966	24 days
1967	18 days
1968	36 days
1969	22 days
1970	17 days
1971	15 days
1972	21 days
1973	16 days
1974	22 days
1975	13 days
1976	25 days
1977	18 days
1978	22 days
1979	21 days
1980	23 days
1981	32 days
1982	14 days
1983	26 days
1984	17 days
1985	16 days
1986	21 days
1987	21 days
1988	33 days
1989	25 days
1990	17 days
1991	24 days
1992	28 days
1993	16 days
1994	13 days
1995	25 days
1996	19 days
1997	24 days
1998	27 days
1999	43 days
2000	22 days
2001	25 days
2002	18 days
2003	21 days
2004	34 days
2005	31 days
2006	27 days
2007	22 days
2008	25 days
2009	26 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

64 years, 1941 to 2008

A day with at least 80.2 mm (3.2 in) of rain is expected about once in 2 years. A day with at least 196.6 mm (7.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Grand Twr 2 N: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	80.2 mm (3.2 in)
5 years	108.8 mm (4.3 in)
10 years	128.7 mm (5.1 in)
25 years	155.1 mm (6.1 in)
50 years	175.5 mm (6.9 in)
100 years	196.6 mm (7.7 in)	Longer than the 64 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, 64 years of values from 1941 to 2008.

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: 176.8 mm (7.0 in) in 1969; 164.6 mm (6.5 in) in 1983; 161.3 mm (6.4 in) in 1993.

Download the Data

Data for Grand Twr 2 N standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Grand Twr 2 N 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 2026-10-14 (14 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).

Year	Days with data	Share of year	Complete
2002	81	22%	No
2003	276	76%	No
2004	333	91%	Yes
2005	362	99%	Yes
2006	365	100%	Yes
2007	363	99%	Yes
2008	365	100%	Yes
2009	267	73%	No