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
Record highRecord low2026 daily maximum2026 daily minimum
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
Year with most
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
Complete yearUnder 90 percent of days
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.
Cooler than the station meanWarmer than the station mean
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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.