Wheaton 3 SE Weather Records (USC00119221)

Record envelope, standing records and threshold days for Wheaton 3 SE (USC00119221), Illinois, United States, with 113 years of record.

Key Facts for Wheaton 3 SE

Wheaton 3 SE (USC00119221) is a weather station in Illinois, United States at 41.81 latitude and -88.07 longitude, 207 m (680 ft) above sea level.
The station reports from 1895 to 2007, 113 years of record.
1,464 records set at Wheaton 3 SE still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Wheaton 3 SE set a daily record precipitation of 25.4 mm (1.0 in) on 25 February 2007.

About the Station

Location: Illinois, United States, 41.81 latitude, -88.07 longitude.
Elevation: 207 m (680 ft).
Period of record: 1895 to 2007, 113 years.
Eligible elements: tmax, tmin, 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 Wheaton 3 SE. 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 Wheaton 3 SE, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	18.3 C (64.9 F)	-32.2 C (-26.0 F)	n/a	n/a
Feb	23.3 C (73.9 F)	-29.4 C (-20.9 F)	n/a	n/a
Mar	29.4 C (84.9 F)	-24.4 C (-11.9 F)	n/a	n/a
Apr	32.8 C (91.0 F)	-15.6 C (3.9 F)	n/a	n/a
May	35.0 C (95.0 F)	-3.9 C (25.0 F)	n/a	n/a
Jun	39.4 C (102.9 F)	0.0 C (32.0 F)	n/a	n/a
Jul	40.6 C (105.1 F)	5.0 C (41.0 F)	n/a	n/a
Aug	37.8 C (100.0 F)	3.3 C (37.9 F)	n/a	n/a
Sep	38.9 C (102.0 F)	-3.3 C (26.1 F)	n/a	n/a
Oct	32.2 C (90.0 F)	-10.0 C (14.0 F)	n/a	n/a
Nov	25.6 C (78.1 F)	-20.0 C (-4.0 F)	n/a	n/a
Dec	21.1 C (70.0 F)	-29.4 C (-20.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Wheaton 3 SE still stand. 1988 holds the most, with 37.

Standing records at Wheaton 3 SE by the year they were set
Year set	Standing records
1895	22
1936	9
1937	19
1938	20
1939	26
1940	31
1941	14
1942	29
1943	18
1944	23
1945	30
1946	18
1947	32
1948	6
1949	4
1950	20
1951	23
1952	18
1953	22
1954	18
1955	18
1956	20
1957	10
1958	20
1959	20
1960	15
1961	14
1962	23
1963	33
1964	22
1965	22
1966	17
1967	29
1968	18
1969	23
1970	18
1971	20
1972	19
1973	10
1974	15
1975	22
1976	34
1977	21
1978	13
1979	20
1980	20
1981	16
1982	23
1983	33
1984	25
1985	16
1986	25
1987	17
1988	37
1989	22
1990	30
1991	26
1992	18
1993	7
1994	16
1995	13
1996	13
1997	16
1998	30
1999	26
2000	23
2001	18
2002	22
2003	13
2004	14
2005	19
2006	23
2007	5

All-Time Record Progression

11 new records

11 all-time records were set at Wheaton 3 SE between 16 January 1972 and 18 July 1996. Each dot is a new record.

When Wheaton 3 SE set new all-time records
Date	Kind	Detail
1972-01-16	Record low minimum temperature	Record low minimum temperature -31.1 C (-24.0 F)
1979-01-11	Record low minimum temperature	Record low minimum temperature -31.7 C (-25.1 F)
1979-01-14	Record snow depth	Record snow depth 66.0 cm (26.0 in)
1979-01-16	Record snow depth	Record snow depth 68.6 cm (27.0 in)
1979-01-17	Record snow depth	Record snow depth 71.1 cm (28.0 in)
1979-01-25	Record snow depth	Record snow depth 73.7 cm (29.0 in)
1985-01-20	Record low maximum temperature	Record low maximum temperature -22.2 C (-8.0 F)
1985-01-20	Record low minimum temperature	Record low minimum temperature -32.2 C (-26.0 F)
1986-07-05	Record high minimum temperature	Record high minimum temperature 28.3 C (82.9 F)
1987-08-14	Record daily precipitation	Record daily precipitation 152.7 mm (6.0 in)
1996-07-18	Record daily precipitation	Record daily precipitation 234.7 mm (9.2 in)

Wettest Day of Each Month

Jul: 234.7 mm (9.2 in)

The wettest day on record for each calendar month at Wheaton 3 SE. The most was 234.7 mm (9.2 in) on 18 July 1996.

Record daily precipitation for each month at Wheaton 3 SE
Month	Record daily precipitation (mm)	Date
Jan	73.4 mm (2.9 in)	12 January 1960
Feb	72.4 mm (2.9 in)	21 February 1997
Mar	86.1 mm (3.4 in)	19 March 1948
Apr	142.2 mm (5.6 in)	5 April 1947
May	96.3 mm (3.8 in)	10 May 1990
Jun	102.9 mm (4.1 in)	21 June 1939
Jul	234.7 mm (9.2 in)	18 July 1996
Aug	152.7 mm (6.0 in)	14 August 1987
Sep	85.1 mm (3.4 in)	7 September 1998
Oct	142.2 mm (5.6 in)	10 October 1954
Nov	75.7 mm (3.0 in)	11 November 1995
Dec	77.2 mm (3.0 in)	3 December 1982

Period of Record Coverage

1895 to 2007

73 years of record at Wheaton 3 SE, 1895 to 2007. 13 years have data for under 90 percent of days and are left out of rankings: 1895, 1936, 1947, 1948, 1949, 1950, 1964, 1965 and others.

Days with data per year at Wheaton 3 SE
Year	Days with data	Share of year	Complete
1895	150	41%	No
1936	145	40%	No
1937	353	97%	Yes
1938	354	97%	Yes
1939	353	97%	Yes
1940	357	98%	Yes
1941	357	98%	Yes
1942	352	96%	Yes
1943	333	91%	Yes
1944	348	95%	Yes
1945	352	96%	Yes
1946	340	93%	Yes
1947	282	77%	No
1948	141	39%	No
1949	47	13%	No
1950	178	49%	No
1951	361	99%	Yes
1952	360	98%	Yes
1953	364	100%	Yes
1954	364	100%	Yes
1955	359	98%	Yes
1956	366	100%	Yes
1957	364	100%	Yes
1958	363	99%	Yes
1959	364	100%	Yes
1960	366	100%	Yes
1961	365	100%	Yes
1962	361	99%	Yes
1963	365	100%	Yes
1964	323	88%	No
1965	313	86%	No
1966	359	98%	Yes
1967	362	99%	Yes
1968	364	99%	Yes
1969	363	99%	Yes
1970	358	98%	Yes
1971	362	99%	Yes
1972	358	98%	Yes
1973	357	98%	Yes
1974	354	97%	Yes
1975	362	99%	Yes
1976	363	99%	Yes
1977	357	98%	Yes
1978	297	81%	No
1979	330	90%	Yes
1980	359	98%	Yes
1981	361	99%	Yes
1982	351	96%	Yes
1983	356	98%	Yes
1984	325	89%	No
1985	360	99%	Yes
1986	314	86%	No
1987	359	98%	Yes
1988	357	98%	Yes
1989	350	96%	Yes
1990	351	96%	Yes
1991	332	91%	Yes
1992	360	98%	Yes
1993	353	97%	Yes
1994	357	98%	Yes
1995	353	97%	Yes
1996	356	97%	Yes
1997	361	99%	Yes
1998	360	99%	Yes
1999	359	98%	Yes
2000	362	99%	Yes
2001	363	99%	Yes
2002	362	99%	Yes
2003	327	90%	No
2004	364	99%	Yes
2005	363	99%	Yes
2006	364	100%	Yes
2007	59	16%	No

Latest Records

Latest records at Wheaton 3 SE
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
25 February 2007	Wheaton 3 SE, US	daily rain	25.4 mm (1.0 in)	0.3 mm (0.01 in)	5 years	11 of 100 (Routine)
14 February 2007	Wheaton 3 SE, US	daily snowfall	20.6 cm (8.1 in)	10.4 cm (4.1 in)	60 years	51 of 100 (Notable)
13 February 2007	Wheaton 3 SE, US	daily snowfall (Tie)	5.1 cm (2.0 in)	tie	110 years	10 of 100 (Routine)
6 February 2007	Wheaton 3 SE, US	daily low max	-12.8 C (9.0 F)	0.6 C (1.1 F)	19 years	15 of 100 (Routine)
4 February 2007	Wheaton 3 SE, US	daily low max	-15.6 C (3.9 F)	0.6 C (1.1 F)	11 years	13 of 100 (Routine)
12 January 2007	Wheaton 3 SE, US	daily high min	4.4 C (39.9 F)	1.6 C (2.9 F)	0 years	12 of 100 (Routine)
5 January 2007	Wheaton 3 SE, US	daily rain	34.0 mm (1.3 in)	10.4 mm (0.4 in)	52 years	37 of 100 (Notable)
5 January 2007	Wheaton 3 SE, US	daily high min	6.7 C (44.1 F)	2.3 C (4.1 F)	8 years	15 of 100 (Routine)
1 January 2007	Wheaton 3 SE, US	daily high max	11.7 C (53.1 F)	0.6 C (1.1 F)	1 year	10 of 100 (Routine)
1 January 2007	Wheaton 3 SE, US	daily high min (Tie)	1.1 C (34.0 F)	tie	65 years	7 of 100 (Routine)
31 December 2006	Wheaton 3 SE, US	daily high min	6.7 C (44.1 F)	3.9 C (7.0 F)	3 years	15 of 100 (Routine)
22 December 2006	Wheaton 3 SE, US	daily high min	8.3 C (46.9 F)	2.2 C (4.0 F)	64 years	32 of 100 (Routine)
22 December 2006	Wheaton 3 SE, US	daily rain	30.2 mm (1.2 in)	13.2 mm (0.5 in)	21 years	31 of 100 (Routine)
11 December 2006	Wheaton 3 SE, US	daily high min	3.3 C (37.9 F)	1.1 C (2.0 F)	9 years	13 of 100 (Routine)
5 December 2006	Wheaton 3 SE, US	daily low max (Tie)	-4.4 C (24.1 F)	tie	51 years	6 of 100 (Routine)
5 December 2006	Wheaton 3 SE, US	daily low min (Tie)	-16.1 C (3.0 F)	tie	29 years	4 of 100 (Routine)
3 December 2006	Wheaton 3 SE, US	daily snow depth	15.2 cm (6.0 in)	5.0 cm (2.0 in)	64 years	34 of 100 (Routine)
2 December 2006	Wheaton 3 SE, US	daily snow depth	17.8 cm (7.0 in)	7.6 cm (3.0 in)	64 years	37 of 100 (Notable)
1 December 2006	Wheaton 3 SE, US	daily rain	30.5 mm (1.2 in)	13.7 mm (0.5 in)	20 years	32 of 100 (Routine)
1 December 2006	Wheaton 3 SE, US	daily snowfall	19.1 cm (7.5 in)	3.9 cm (1.5 in)	32 years	27 of 100 (Routine)

Climate Trend

58 complete years, 1937 to 2006

One stripe for each of 58 complete years at Wheaton 3 SE, 1937 to 2006. Blue stripes are years cooler than the station's own mean of 10.2 C (50.3 F); red stripes are warmer. The coolest year was 1972, at 8.9 C (47.9 F), and the warmest was 1998, at 12.7 C (54.8 F). The strongest colour marks a difference of 2.6 C (4.7 F).

Annual mean temperature at Wheaton 3 SE as warming stripes, 1937 to 2006
Year	Annual mean temperature	Difference from the station mean
1937	9.3 C	-0.89 C
1938	11.1 C	+0.90 C
1939	10.8 C	+0.68 C
1940	9.1 C	-1.02 C
1941	10.6 C	+0.46 C
1942	9.7 C	-0.49 C
1943	9.6 C	-0.55 C
1944	10.4 C	+0.21 C
1945	9.2 C	-0.94 C
1946	10.7 C	+0.51 C
1951	8.9 C	-1.23 C
1952	10.4 C	+0.19 C
1953	10.9 C	+0.78 C
1954	10.7 C	+0.52 C
1955	10.4 C	+0.21 C
1956	10.3 C	+0.18 C
1957	9.8 C	-0.39 C
1958	9.0 C	-1.20 C
1959	9.8 C	-0.33 C
1960	9.4 C	-0.76 C
1961	9.7 C	-0.47 C
1962	9.2 C	-0.92 C
1963	9.1 C	-1.06 C
1966	9.1 C	-1.06 C
1967	9.0 C	-1.19 C
1968	9.9 C	-0.22 C
1969	9.1 C	-1.06 C
1970	9.7 C	-0.47 C
1971	10.1 C	-0.02 C
1972	8.9 C	-1.31 C
1973	10.8 C	+0.60 C
1974	9.8 C	-0.38 C
1975	10.1 C	-0.10 C
1976	9.0 C	-1.19 C
1977	9.9 C	-0.31 C
1980	9.6 C	-0.58 C
1981	10.1 C	-0.04 C
1982	9.5 C	-0.67 C
1983	10.5 C	+0.31 C
1985	9.7 C	-0.44 C
1987	11.8 C	+1.61 C
1988	10.6 C	+0.45 C
1989	9.5 C	-0.68 C
1990	11.5 C	+1.36 C
1992	10.3 C	+0.14 C
1993	10.2 C	+0.02 C
1994	10.6 C	+0.41 C
1995	10.5 C	+0.37 C
1996	9.3 C	-0.84 C
1997	10.2 C	+0.01 C
1998	12.7 C	+2.51 C
1999	11.8 C	+1.62 C
2000	11.2 C	+1.04 C
2001	11.8 C	+1.64 C
2002	11.5 C	+1.33 C
2004	10.6 C	+0.43 C
2005	11.1 C	+0.98 C
2006	11.3 C	+1.18 C

The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1937 to 2006. In Fahrenheit: 0.3 F (0.1 to 0.5) per decade. The slope is a straight line fitted to 58 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Wheaton 3 SE
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.2 C (0.1 to 0.3) per decade	0.3 F (0.1 to 0.5) per decade	1937 to 2006	58	Rise
Mean daily maximum	0.3 C (0.2 to 0.4) per decade	0.5 F (0.3 to 0.7) per decade	1937 to 2006	58	Rise
Mean daily minimum	0.09 C (-0.02 to 0.20) per decade	0.15 F (-0.05 to 0.35) per decade	1937 to 2006	58	Not clearly different from zero

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1895 to 2007

Yearly extremes at Wheaton 3 SE: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	40.6 C (105.1 F)	1940	36.1 C (97.0 F)	73
Coldest night (TNn)	-32.2 C (-26.0 F)	1985	-24.4 C (-11.9 F)	73
Wettest day (Rx1day)	234.7 mm (9.2 in)	1996	61.2 mm (2.4 in)	79
Wettest five days (Rx5day)	253.3 mm (10.0 in)	1996	94.1 mm (3.7 in)	79
Longest dry spell (CDD)	42 days	1987	20 days	79

Hottest day (TXx)

The hottest day of the year at Wheaton 3 SE, 1895 to 2007. The record is 40.6 C (105.1 F) in 1940, marked on the chart; the median year is 36.1 C (97.0 F).

Hottest day (TXx) at Wheaton 3 SE by year
Year	Hottest day (TXx)
1895	35.6 C (96.1 F)
1896	n/a
1897	n/a
1898	n/a
1899	n/a
1900	n/a
1901	n/a
1936	37.8 C (100.0 F)
1937	36.1 C (97.0 F)
1938	35.0 C (95.0 F)
1939	38.9 C (102.0 F)
1940	40.6 C (105.1 F)
1941	36.7 C (98.1 F)
1942	36.1 C (97.0 F)
1943	36.7 C (98.1 F)
1944	37.2 C (99.0 F)
1945	38.3 C (100.9 F)
1946	37.8 C (100.0 F)
1947	37.2 C (99.0 F)
1948	31.7 C (89.1 F)
1949	23.9 C (75.0 F)
1950	33.3 C (91.9 F)
1951	32.8 C (91.0 F)
1952	36.7 C (98.1 F)
1953	37.8 C (100.0 F)
1954	36.1 C (97.0 F)
1955	37.8 C (100.0 F)
1956	37.8 C (100.0 F)
1957	33.9 C (93.0 F)
1958	34.4 C (93.9 F)
1959	34.4 C (93.9 F)
1960	36.1 C (97.0 F)
1961	34.4 C (93.9 F)
1962	35.0 C (95.0 F)
1963	36.7 C (98.1 F)
1964	36.1 C (97.0 F)
1965	35.6 C (96.1 F)
1966	37.2 C (99.0 F)
1967	35.0 C (95.0 F)
1968	35.0 C (95.0 F)
1969	35.0 C (95.0 F)
1970	37.2 C (99.0 F)
1971	36.7 C (98.1 F)
1972	34.4 C (93.9 F)
1973	35.6 C (96.1 F)
1974	36.7 C (98.1 F)
1975	34.4 C (93.9 F)
1976	37.2 C (99.0 F)
1977	36.7 C (98.1 F)
1978	36.1 C (97.0 F)
1979	33.9 C (93.0 F)
1980	37.2 C (99.0 F)
1981	35.0 C (95.0 F)
1982	32.8 C (91.0 F)
1983	37.8 C (100.0 F)
1984	36.1 C (97.0 F)
1985	35.6 C (96.1 F)
1986	35.6 C (96.1 F)
1987	37.2 C (99.0 F)
1988	39.4 C (102.9 F)
1989	37.8 C (100.0 F)
1990	36.1 C (97.0 F)
1991	37.8 C (100.0 F)
1992	34.4 C (93.9 F)
1993	35.0 C (95.0 F)
1994	36.1 C (97.0 F)
1995	40.6 C (105.1 F)
1996	34.4 C (93.9 F)
1997	37.2 C (99.0 F)
1998	36.1 C (97.0 F)
1999	40.0 C (104.0 F)
2000	35.6 C (96.1 F)
2001	36.1 C (97.0 F)
2002	37.2 C (99.0 F)
2003	35.0 C (95.0 F)
2004	33.3 C (91.9 F)
2005	38.3 C (100.9 F)
2006	36.7 C (98.1 F)
2007	11.7 C (53.1 F)

Coldest night (TNn)

The coldest night of the year at Wheaton 3 SE, 1895 to 2007. The record is -32.2 C (-26.0 F) in 1985, marked on the chart; the median year is -24.4 C (-11.9 F).

Coldest night (TNn) at Wheaton 3 SE by year
Year	Coldest night (TNn)
1895	-6.1 C (21.0 F)
1896	n/a
1897	n/a
1898	n/a
1899	n/a
1900	n/a
1901	n/a
1936	-20.0 C (-4.0 F)
1937	-20.6 C (-5.1 F)
1938	-18.9 C (-2.0 F)
1939	-17.8 C (0.0 F)
1940	-27.2 C (-17.0 F)
1941	-22.2 C (-8.0 F)
1942	-26.7 C (-16.1 F)
1943	-26.7 C (-16.1 F)
1944	-22.8 C (-9.0 F)
1945	-24.4 C (-11.9 F)
1946	-20.6 C (-5.1 F)
1947	-20.6 C (-5.1 F)
1948	-24.4 C (-11.9 F)
1949	-17.8 C (0.0 F)
1950	-26.7 C (-16.1 F)
1951	-29.4 C (-20.9 F)
1952	-23.3 C (-9.9 F)
1953	-19.4 C (-2.9 F)
1954	-23.9 C (-11.0 F)
1955	-25.0 C (-13.0 F)
1956	-18.9 C (-2.0 F)
1957	-24.4 C (-11.9 F)
1958	-26.1 C (-15.0 F)
1959	-25.0 C (-13.0 F)
1960	-27.2 C (-17.0 F)
1961	-21.1 C (-6.0 F)
1962	-26.1 C (-15.0 F)
1963	-28.9 C (-20.0 F)
1964	-18.9 C (-2.0 F)
1965	-25.6 C (-14.1 F)
1966	-28.3 C (-18.9 F)
1967	-27.8 C (-18.0 F)
1968	-28.3 C (-18.9 F)
1969	-24.4 C (-11.9 F)
1970	-27.8 C (-18.0 F)
1971	-27.8 C (-18.0 F)
1972	-31.1 C (-24.0 F)
1973	-20.6 C (-5.1 F)
1974	-26.1 C (-15.0 F)
1975	-23.3 C (-9.9 F)
1976	-28.9 C (-20.0 F)
1977	-29.4 C (-20.9 F)
1978	-26.7 C (-16.1 F)
1979	-31.7 C (-25.1 F)
1980	-25.0 C (-13.0 F)
1981	-26.1 C (-15.0 F)
1982	-30.0 C (-22.0 F)
1983	-29.4 C (-20.9 F)
1984	-28.9 C (-20.0 F)
1985	-32.2 C (-26.0 F)
1986	-23.3 C (-9.9 F)
1987	-23.3 C (-9.9 F)
1988	-26.7 C (-16.1 F)
1989	-26.7 C (-16.1 F)
1990	-21.1 C (-6.0 F)
1991	-22.2 C (-8.0 F)
1992	-24.4 C (-11.9 F)
1993	-22.2 C (-8.0 F)
1994	-30.0 C (-22.0 F)
1995	-20.6 C (-5.1 F)
1996	-28.9 C (-20.0 F)
1997	-23.9 C (-11.0 F)
1998	-19.4 C (-2.9 F)
1999	-27.8 C (-18.0 F)
2000	-25.0 C (-13.0 F)
2001	-20.0 C (-4.0 F)
2002	-21.7 C (-7.1 F)
2003	-23.9 C (-11.0 F)
2004	-22.8 C (-9.0 F)
2005	-19.4 C (-2.9 F)
2006	-22.2 C (-8.0 F)
2007	-23.9 C (-11.0 F)

Wettest day (Rx1day)

The wettest day of the year at Wheaton 3 SE, 1895 to 2007. The record is 234.7 mm (9.2 in) in 1996, marked on the chart; the median year is 61.2 mm (2.4 in).

Wettest day (Rx1day) at Wheaton 3 SE by year
Year	Wettest day (Rx1day)
1895	52.8 mm (2.1 in)
1896	55.9 mm (2.2 in)
1897	50.8 mm (2.0 in)
1898	74.9 mm (2.9 in)
1899	118.9 mm (4.7 in)
1900	39.9 mm (1.6 in)
1901	15.2 mm (0.6 in)
1936	72.1 mm (2.8 in)
1937	84.3 mm (3.3 in)
1938	52.1 mm (2.1 in)
1939	102.9 mm (4.1 in)
1940	39.4 mm (1.6 in)
1941	63.2 mm (2.5 in)
1942	49.3 mm (1.9 in)
1943	71.9 mm (2.8 in)
1944	45.2 mm (1.8 in)
1945	57.2 mm (2.3 in)
1946	63.5 mm (2.5 in)
1947	142.2 mm (5.6 in)
1948	86.1 mm (3.4 in)
1949	85.1 mm (3.4 in)
1950	56.4 mm (2.2 in)
1951	66.5 mm (2.6 in)
1952	39.4 mm (1.6 in)
1953	59.9 mm (2.4 in)
1954	142.2 mm (5.6 in)
1955	57.4 mm (2.3 in)
1956	45.7 mm (1.8 in)
1957	138.7 mm (5.5 in)
1958	65.0 mm (2.6 in)
1959	53.8 mm (2.1 in)
1960	73.4 mm (2.9 in)
1961	79.2 mm (3.1 in)
1962	56.4 mm (2.2 in)
1963	54.6 mm (2.1 in)
1964	116.1 mm (4.6 in)
1965	58.4 mm (2.3 in)
1966	56.6 mm (2.2 in)
1967	48.5 mm (1.9 in)
1968	112.5 mm (4.4 in)
1969	91.9 mm (3.6 in)
1970	38.4 mm (1.5 in)
1971	59.7 mm (2.4 in)
1972	139.4 mm (5.5 in)
1973	45.7 mm (1.8 in)
1974	42.7 mm (1.7 in)
1975	85.9 mm (3.4 in)
1976	53.8 mm (2.1 in)
1977	70.6 mm (2.8 in)
1978	59.7 mm (2.4 in)
1979	52.8 mm (2.1 in)
1980	51.3 mm (2.0 in)
1981	55.4 mm (2.2 in)
1982	77.2 mm (3.0 in)
1983	98.0 mm (3.9 in)
1984	47.2 mm (1.9 in)
1985	65.5 mm (2.6 in)
1986	73.2 mm (2.9 in)
1987	152.7 mm (6.0 in)
1988	49.8 mm (2.0 in)
1989	66.8 mm (2.6 in)
1990	96.3 mm (3.8 in)
1991	58.4 mm (2.3 in)
1992	65.0 mm (2.6 in)
1993	59.7 mm (2.4 in)
1994	78.0 mm (3.1 in)
1995	75.7 mm (3.0 in)
1996	234.7 mm (9.2 in)
1997	72.4 mm (2.9 in)
1998	85.1 mm (3.4 in)
1999	50.8 mm (2.0 in)
2000	61.2 mm (2.4 in)
2001	112.5 mm (4.4 in)
2002	74.2 mm (2.9 in)
2003	57.9 mm (2.3 in)
2004	47.2 mm (1.9 in)
2005	39.9 mm (1.6 in)
2006	91.4 mm (3.6 in)
2007	34.0 mm (1.3 in)

Wettest five days (Rx5day)

The wettest five days of the year at Wheaton 3 SE, 1895 to 2007. The record is 253.3 mm (10.0 in) in 1996, marked on the chart; the median year is 94.1 mm (3.7 in).

Wettest five days (Rx5day) at Wheaton 3 SE by year
Year	Wettest five days (Rx5day)
1895	125.5 mm (4.9 in)
1896	121.7 mm (4.8 in)
1897	78.0 mm (3.1 in)
1898	80.8 mm (3.2 in)
1899	121.7 mm (4.8 in)
1900	41.7 mm (1.6 in)
1901	21.2 mm (0.8 in)
1936	179.4 mm (7.1 in)
1937	135.2 mm (5.3 in)
1938	88.0 mm (3.5 in)
1939	157.0 mm (6.2 in)
1940	66.6 mm (2.6 in)
1941	100.1 mm (3.9 in)
1942	68.6 mm (2.7 in)
1943	112.1 mm (4.4 in)
1944	78.7 mm (3.1 in)
1945	96.0 mm (3.8 in)
1946	73.6 mm (2.9 in)
1947	150.8 mm (5.9 in)
1948	117.1 mm (4.6 in)
1949	105.4 mm (4.1 in)
1950	106.5 mm (4.2 in)
1951	83.5 mm (3.3 in)
1952	55.6 mm (2.2 in)
1953	78.5 mm (3.1 in)
1954	166.1 mm (6.5 in)
1955	88.1 mm (3.5 in)
1956	83.8 mm (3.3 in)
1957	154.9 mm (6.1 in)
1958	94.5 mm (3.7 in)
1959	71.4 mm (2.8 in)
1960	129.0 mm (5.1 in)
1961	125.3 mm (4.9 in)
1962	57.7 mm (2.3 in)
1963	83.1 mm (3.3 in)
1964	118.6 mm (4.7 in)
1965	65.0 mm (2.6 in)
1966	100.1 mm (3.9 in)
1967	73.5 mm (2.9 in)
1968	141.3 mm (5.6 in)
1969	130.8 mm (5.1 in)
1970	87.2 mm (3.4 in)
1971	63.3 mm (2.5 in)
1972	171.8 mm (6.8 in)
1973	59.2 mm (2.3 in)
1974	85.3 mm (3.4 in)
1975	101.9 mm (4.0 in)
1976	94.1 mm (3.7 in)
1977	96.8 mm (3.8 in)
1978	80.8 mm (3.2 in)
1979	101.0 mm (4.0 in)
1980	77.7 mm (3.1 in)
1981	85.7 mm (3.4 in)
1982	109.4 mm (4.3 in)
1983	207.0 mm (8.1 in)
1984	55.9 mm (2.2 in)
1985	73.6 mm (2.9 in)
1986	123.5 mm (4.9 in)
1987	246.4 mm (9.7 in)
1988	67.1 mm (2.6 in)
1989	90.4 mm (3.6 in)
1990	113.5 mm (4.5 in)
1991	112.9 mm (4.4 in)
1992	89.6 mm (3.5 in)
1993	89.7 mm (3.5 in)
1994	109.5 mm (4.3 in)
1995	90.9 mm (3.6 in)
1996	253.3 mm (10.0 in)
1997	92.5 mm (3.6 in)
1998	142.4 mm (5.6 in)
1999	64.8 mm (2.6 in)
2000	107.2 mm (4.2 in)
2001	135.6 mm (5.3 in)
2002	74.2 mm (2.9 in)
2003	96.3 mm (3.8 in)
2004	82.8 mm (3.3 in)
2005	63.5 mm (2.5 in)
2006	97.2 mm (3.8 in)
2007	37.3 mm (1.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at Wheaton 3 SE, 1895 to 2007. The record is 42 days in 1987, marked on the chart; the median year is 20 days.

Longest dry spell (CDD) at Wheaton 3 SE by year
Year	Longest dry spell (CDD)
1895	25 days
1896	20 days
1897	24 days
1898	24 days
1899	19 days
1900	15 days
1901	11 days
1936	23 days
1937	22 days
1938	23 days
1939	33 days
1940	14 days
1941	13 days
1942	23 days
1943	31 days
1944	28 days
1945	13 days
1946	30 days
1947	15 days
1948	22 days
1949	21 days
1950	25 days
1951	16 days
1952	26 days
1953	23 days
1954	19 days
1955	23 days
1956	16 days
1957	28 days
1958	26 days
1959	22 days
1960	19 days
1961	27 days
1962	18 days
1963	18 days
1964	24 days
1965	14 days
1966	23 days
1967	25 days
1968	29 days
1969	41 days
1970	16 days
1971	24 days
1972	14 days
1973	17 days
1974	13 days
1975	15 days
1976	26 days
1977	14 days
1978	17 days
1979	33 days
1980	12 days
1981	30 days
1982	18 days
1983	16 days
1984	16 days
1985	14 days
1986	25 days
1987	42 days
1988	27 days
1989	25 days
1990	19 days
1991	18 days
1992	38 days
1993	20 days
1994	17 days
1995	29 days
1996	20 days
1997	16 days
1998	19 days
1999	37 days
2000	18 days
2001	19 days
2002	17 days
2003	14 days
2004	22 days
2005	24 days
2006	16 days
2007	9 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.

Frost Dates and Growing Season

58 years with a frost

Across 58 years with a frost, the median last spring frost at Wheaton 3 SE falls on 4 May and the median first autumn frost on 12 October, which leaves a median of 162 days between them.

Fitted over all years, the growing season changes by -1.2 days per decade at this station.

Frost dates and growing season at Wheaton 3 SE
Measure	Median, all years	Earliest period	Recent period (1971 to 2006)	Recent against earliest	Fitted trend
Last spring frost	4 May	n/a	5 May	n/a	+0.6 days per decade
First autumn frost	12 October	n/a	9 October	n/a	-0.7 days per decade
Growing days	162 days	n/a	156 days	n/a	-1.2 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

66 years, 1898 to 2006

A day with at least 64.4 mm (2.5 in) of rain is expected about once in 2 years. A day with at least 209.5 mm (8.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Wheaton 3 SE: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	64.4 mm (2.5 in)
5 years	89.0 mm (3.5 in)
10 years	109.9 mm (4.3 in)
25 years	142.9 mm (5.6 in)
50 years	173.3 mm (6.8 in)
100 years	209.5 mm (8.2 in)	Longer than the 66 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, 66 years of values from 1898 to 2006.

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: 234.7 mm (9.2 in) in 1996; 152.7 mm (6.0 in) in 1987; 142.2 mm (5.6 in) in 1954.

Station Changes

1 suspected

One change was suspected in the annual mean temperature of Wheaton 3 SE, at 1990. Each is measured against neighbouring stations.

Relative to 5 neighbouring stations, the station's annual mean temperature from 1990 ran 0.3 C (0.6 F) higher than in the years before (likely change).

Suspected changes in the annual mean temperature at Wheaton 3 SE, against neighbouring stations
Year	Shift (C)	Shift (F)	Strength	Neighbours
1990	+0.3	+0.6	likely	5

Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.

Download the Data

Data for Wheaton 3 SE standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Wheaton 3 SE 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).