Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Oak Park. 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 Oak Park, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
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Feb
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Mar
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Apr
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May
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Jun
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Jul
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Aug
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Sep
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Oct
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Nov
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Dec
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Which Years Hold Standing Records
0 standing records
0 records at Oak Park still stand.
Standing records at Oak Park by the year they were set
Year set
Standing records
Wettest Day of Each Month
Jan: 127.5 mm (5.0 in)
The wettest day on record for each calendar month at Oak Park. The most was 127.5 mm (5.0 in) on 20 January 1976.
Record daily precipitation for each month at Oak Park
Yearly extremes at Oak Park: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Wettest day (Rx1day)
127.5 mm (5.0 in)
1976
67.5 mm (2.7 in)
32
Wettest five days (Rx5day)
297.0 mm (11.7 in)
1990
107.4 mm (4.2 in)
32
Longest dry spell (CDD)
131 days
1977
57 days
32
Wettest day (Rx1day)
The wettest day of the year at Oak Park, 1972 to 2003. The record is 127.5 mm (5.0 in) in 1976, marked on the chart; the median year is 67.5 mm (2.7 in).
Wettest day (Rx1day) at Oak Park by year
Year
Wettest day (Rx1day)
1972
33.5 mm (1.3 in)
1973
109.2 mm (4.3 in)
1974
102.2 mm (4.0 in)
1975
87.3 mm (3.4 in)
1976
127.5 mm (5.0 in)
1977
87.6 mm (3.4 in)
1978
102.1 mm (4.0 in)
1979
75.1 mm (3.0 in)
1980
78.7 mm (3.1 in)
1981
78.2 mm (3.1 in)
1982
55.0 mm (2.2 in)
1983
74.0 mm (2.9 in)
1984
57.0 mm (2.2 in)
1985
55.0 mm (2.2 in)
1986
51.0 mm (2.0 in)
1987
55.0 mm (2.2 in)
1988
78.0 mm (3.1 in)
1989
99.0 mm (3.9 in)
1990
115.0 mm (4.5 in)
1991
65.0 mm (2.6 in)
1992
31.0 mm (1.2 in)
1993
41.0 mm (1.6 in)
1994
65.0 mm (2.6 in)
1995
46.0 mm (1.8 in)
1996
60.5 mm (2.4 in)
1997
62.0 mm (2.4 in)
1998
85.0 mm (3.3 in)
1999
44.0 mm (1.7 in)
2000
85.0 mm (3.3 in)
2001
19.0 mm (0.7 in)
2002
39.0 mm (1.5 in)
2003
70.0 mm (2.8 in)
Wettest five days (Rx5day)
The wettest five days of the year at Oak Park, 1972 to 2003. The record is 297.0 mm (11.7 in) in 1990, marked on the chart; the median year is 107.4 mm (4.2 in).
Wettest five days (Rx5day) at Oak Park by year
Year
Wettest five days (Rx5day)
1972
46.5 mm (1.8 in)
1973
176.0 mm (6.9 in)
1974
186.0 mm (7.3 in)
1975
87.3 mm (3.4 in)
1976
149.6 mm (5.9 in)
1977
113.0 mm (4.4 in)
1978
289.9 mm (11.4 in)
1979
84.2 mm (3.3 in)
1980
109.2 mm (4.3 in)
1981
106.7 mm (4.2 in)
1982
61.0 mm (2.4 in)
1983
195.0 mm (7.7 in)
1984
108.0 mm (4.3 in)
1985
115.0 mm (4.5 in)
1986
76.0 mm (3.0 in)
1987
58.0 mm (2.3 in)
1988
122.0 mm (4.8 in)
1989
140.0 mm (5.5 in)
1990
297.0 mm (11.7 in)
1991
296.0 mm (11.7 in)
1992
41.0 mm (1.6 in)
1993
95.0 mm (3.7 in)
1994
118.0 mm (4.6 in)
1995
101.0 mm (4.0 in)
1996
196.5 mm (7.7 in)
1997
91.0 mm (3.6 in)
1998
111.0 mm (4.4 in)
1999
78.0 mm (3.1 in)
2000
96.0 mm (3.8 in)
2001
93.0 mm (3.7 in)
2002
68.0 mm (2.7 in)
2003
80.0 mm (3.1 in)
Longest dry spell (CDD)
The longest dry spell of the year at Oak Park, 1972 to 2003. The record is 131 days in 1977, marked on the chart; the median year is 57 days.
Longest dry spell (CDD) at Oak Park by year
Year
Longest dry spell (CDD)
1972
117 days
1973
56 days
1974
91 days
1975
53 days
1976
27 days
1977
131 days
1978
39 days
1979
67 days
1980
58 days
1981
114 days
1982
91 days
1983
35 days
1984
55 days
1985
59 days
1986
40 days
1987
48 days
1988
62 days
1989
37 days
1990
54 days
1991
80 days
1992
58 days
1993
93 days
1994
79 days
1995
61 days
1996
41 days
1997
44 days
1998
48 days
1999
43 days
2000
59 days
2001
43 days
2002
71 days
2003
51 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.
Download the Data
Data for Oak Park standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Oak Park 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.