Record envelope, standing records and threshold days for Vandalia (USC00118781), Illinois, United States, with 128 years of record.
Key Facts for Vandalia
Vandalia (USC00118781) is a weather station in Illinois, United States at 38.96 latitude and -89.10 longitude, 149 m (490 ft) above sea level.
The station reports from 1899 to 2026, 128 years of record.
1,464 records set at Vandalia still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Vandalia set a daily record precipitation of 35.1 mm (1.4 in) on 19 May 2026.
About the Station
Location: Illinois, United States, 38.96 latitude, -89.10 longitude.
Elevation: 149 m (490 ft).
Period of record: 1899 to 2026, 128 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 Vandalia. 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 Vandalia, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
22.2 C (72.0 F)
-30.0 C (-22.0 F)
n/a
n/a
Feb
25.0 C (77.0 F)
-28.3 C (-18.9 F)
n/a
n/a
Mar
28.9 C (84.0 F)
-22.8 C (-9.0 F)
n/a
n/a
Apr
31.7 C (89.1 F)
-6.7 C (19.9 F)
n/a
n/a
May
34.4 C (93.9 F)
-2.2 C (28.0 F)
n/a
n/a
Jun
40.0 C (104.0 F)
3.9 C (39.0 F)
n/a
n/a
Jul
43.9 C (111.0 F)
8.9 C (48.0 F)
n/a
n/a
Aug
41.1 C (106.0 F)
5.0 C (41.0 F)
n/a
n/a
Sep
36.7 C (98.1 F)
-6.7 C (19.9 F)
n/a
n/a
Oct
36.1 C (97.0 F)
-5.6 C (21.9 F)
n/a
n/a
Nov
27.2 C (81.0 F)
-15.0 C (5.0 F)
n/a
n/a
Dec
22.2 C (72.0 F)
-27.2 C (-17.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Vandalia still stand. 1901 holds the most, with 71.
Standing records at Vandalia by the year they were set
Year set
Standing records
1899
24
1900
31
1901
71
1902
39
1903
43
1904
31
1905
30
1906
20
1973
12
1974
46
1975
24
1976
50
1977
38
1978
33
1979
28
1980
25
1981
13
1982
23
1983
50
1984
32
1985
20
1986
23
1987
28
1988
45
1989
23
1990
45
1991
52
1992
27
1993
27
1994
22
1995
22
1996
31
1997
33
1998
32
1999
21
2000
34
2001
23
2002
32
2003
12
2004
22
2005
21
2006
31
2007
39
2008
20
2009
20
2010
20
2011
25
2012
51
All-Time Record Progression
1 new records
1 all-time records were set at Vandalia between 26 July 2012 and 26 July 2012. Each dot is a new record.
When Vandalia set new all-time records
Date
Kind
Detail
2012-07-26
Record high minimum temperature
Record high minimum temperature 27.8 C (82.0 F)
Wettest Day of Each Month
May: 133.1 mm (5.2 in)
The wettest day on record for each calendar month at Vandalia. The most was 133.1 mm (5.2 in) on 31 May 1944.
Record daily precipitation for each month at Vandalia
Month
Record daily precipitation (mm)
Date
Jan
110.7 mm (4.4 in)
4 January 1950
Feb
78.7 mm (3.1 in)
11 February 2009
Mar
71.9 mm (2.8 in)
28 March 1977
Apr
76.7 mm (3.0 in)
5 April 2025
May
133.1 mm (5.2 in)
31 May 1944
Jun
115.6 mm (4.6 in)
28 June 2010
Jul
67.1 mm (2.6 in)
1 July 2025
Aug
96.0 mm (3.8 in)
4 August 1984
Sep
95.0 mm (3.7 in)
1 September 2012
Oct
103.9 mm (4.1 in)
19 October 2025
Nov
98.0 mm (3.9 in)
1 November 1946
Dec
62.2 mm (2.4 in)
30 December 1936
Period of Record Coverage
1899 to 2012
Complete yearUnder 90 percent of days
48 years of record at Vandalia, 1899 to 2012. 15 years have data for under 90 percent of days and are left out of rankings: 1899, 1900, 1902, 1904, 1906, 1973, 1979, 1980 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 31 complete years at Vandalia, 1903 to 2011. Blue stripes are years cooler than the station's own mean of 12.1 C (53.8 F); red stripes are warmer. The coolest year was 1978, at 10.6 C (51.2 F), and the warmest was 1998, at 13.5 C (56.4 F). The strongest colour marks a difference of 1.5 C (2.7 F).
Annual mean temperature at Vandalia as warming stripes, 1903 to 2011
Year
Annual mean temperature
Difference from the station mean
1903
12.4 C
+0.24 C
1905
12.1 C
-0.06 C
1974
11.6 C
-0.51 C
1975
12.1 C
-0.06 C
1976
11.3 C
-0.81 C
1977
12.0 C
-0.16 C
1978
10.6 C
-1.50 C
1983
11.9 C
-0.26 C
1984
11.7 C
-0.46 C
1987
13.0 C
+0.83 C
1990
12.8 C
+0.61 C
1991
12.9 C
+0.77 C
1992
12.0 C
-0.15 C
1993
11.4 C
-0.77 C
1994
11.9 C
-0.21 C
1995
11.7 C
-0.46 C
1996
11.0 C
-1.18 C
1997
11.4 C
-0.77 C
1998
13.5 C
+1.39 C
1999
12.8 C
+0.63 C
2000
11.8 C
-0.35 C
2001
12.6 C
+0.49 C
2002
12.6 C
+0.49 C
2004
12.4 C
+0.23 C
2005
12.8 C
+0.70 C
2006
12.8 C
+0.70 C
2007
13.0 C
+0.86 C
2008
11.4 C
-0.72 C
2009
11.8 C
-0.31 C
2010
12.4 C
+0.25 C
2011
12.7 C
+0.51 C
The fitted trend in annual mean temperature here over 1903 to 2011 is 0.04 C (-0.06 to 0.14) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.1 to 0.2) per decade. The slope is a straight line fitted to 31 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Vandalia
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.04 C (-0.06 to 0.14) per decade
0.1 F (-0.1 to 0.2) per decade
1903 to 2011
31
Not clearly different from zero
Mean daily maximum
-0.05 C (-0.16 to 0.07) per decade
-0.1 F (-0.3 to 0.1) per decade
1903 to 2011
31
Not clearly different from zero
Mean daily minimum
0.12 C (0.02 to 0.23) per decade
0.22 F (0.03 to 0.41) per decade
1903 to 2011
31
Rise
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
1899 to 2026
Yearly extremes at Vandalia: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
43.9 C (111.0 F)
1901
36.4 C (97.5 F)
48
Coldest night (TNn)
-30.0 C (-22.0 F)
1904
-20.0 C (-4.0 F)
48
Wettest day (Rx1day)
133.1 mm (5.2 in)
1944
63.0 mm (2.5 in)
72
Wettest five days (Rx5day)
172.5 mm (6.8 in)
1944
97.1 mm (3.8 in)
71
Longest dry spell (CDD)
41 days
2025
19 days
72
Hottest day (TXx)
The hottest day of the year at Vandalia, 1899 to 2026. The record is 43.9 C (111.0 F) in 1901, marked on the chart; the median year is 36.4 C (97.5 F).
Hottest day (TXx) at Vandalia by year
Year
Hottest day (TXx)
1899
32.8 C (91.0 F)
1900
38.3 C (100.9 F)
1901
43.9 C (111.0 F)
1902
36.1 C (97.0 F)
1903
37.8 C (100.0 F)
1904
33.3 C (91.9 F)
1905
37.8 C (100.0 F)
1906
30.0 C (86.0 F)
1931
n/a
1932
n/a
1933
n/a
1934
n/a
1935
n/a
1936
n/a
1937
n/a
1938
n/a
1939
n/a
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
1973
34.4 C (93.9 F)
1974
38.9 C (102.0 F)
1975
36.1 C (97.0 F)
1976
37.2 C (99.0 F)
1977
36.1 C (97.0 F)
1978
36.7 C (98.1 F)
1979
35.0 C (95.0 F)
1980
40.0 C (104.0 F)
1981
31.7 C (89.1 F)
1982
35.6 C (96.1 F)
1983
40.0 C (104.0 F)
1984
37.8 C (100.0 F)
1985
35.6 C (96.1 F)
1986
34.4 C (93.9 F)
1987
37.8 C (100.0 F)
1988
38.9 C (102.0 F)
1989
31.1 C (88.0 F)
1990
37.2 C (99.0 F)
1991
37.2 C (99.0 F)
1992
35.0 C (95.0 F)
1993
34.4 C (93.9 F)
1994
35.6 C (96.1 F)
1995
36.7 C (98.1 F)
1996
35.0 C (95.0 F)
1997
36.7 C (98.1 F)
1998
35.6 C (96.1 F)
1999
37.2 C (99.0 F)
2000
36.1 C (97.0 F)
2001
36.1 C (97.0 F)
2002
36.1 C (97.0 F)
2003
36.7 C (98.1 F)
2004
35.0 C (95.0 F)
2005
36.7 C (98.1 F)
2006
37.2 C (99.0 F)
2007
39.4 C (102.9 F)
2008
35.0 C (95.0 F)
2009
34.4 C (93.9 F)
2010
36.7 C (98.1 F)
2011
37.2 C (99.0 F)
2012
40.6 C (105.1 F)
2024
n/a
2025
n/a
2026
n/a
Coldest night (TNn)
The coldest night of the year at Vandalia, 1899 to 2026. The record is -30.0 C (-22.0 F) in 1904, marked on the chart; the median year is -20.0 C (-4.0 F).
Coldest night (TNn) at Vandalia by year
Year
Coldest night (TNn)
1899
-15.6 C (3.9 F)
1900
-18.3 C (-0.9 F)
1901
-25.6 C (-14.1 F)
1902
-22.2 C (-8.0 F)
1903
-22.2 C (-8.0 F)
1904
-30.0 C (-22.0 F)
1905
-28.3 C (-18.9 F)
1906
-23.3 C (-9.9 F)
1931
n/a
1932
n/a
1933
n/a
1934
n/a
1935
n/a
1936
n/a
1937
n/a
1938
n/a
1939
n/a
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
1973
-22.8 C (-9.0 F)
1974
-23.3 C (-9.9 F)
1975
-17.8 C (0.0 F)
1976
-21.7 C (-7.1 F)
1977
-27.8 C (-18.0 F)
1978
-22.8 C (-9.0 F)
1979
-24.4 C (-11.9 F)
1980
-17.2 C (1.0 F)
1981
-20.6 C (-5.1 F)
1982
-11.7 C (10.9 F)
1983
-24.4 C (-11.9 F)
1984
-27.2 C (-17.0 F)
1985
-29.4 C (-20.9 F)
1986
-13.9 C (7.0 F)
1987
-20.0 C (-4.0 F)
1988
-19.4 C (-2.9 F)
1989
-27.2 C (-17.0 F)
1990
-18.9 C (-2.0 F)
1991
-15.0 C (5.0 F)
1992
-16.7 C (1.9 F)
1993
-20.0 C (-4.0 F)
1994
-27.2 C (-17.0 F)
1995
-17.2 C (1.0 F)
1996
-26.7 C (-16.1 F)
1997
-22.2 C (-8.0 F)
1998
-15.0 C (5.0 F)
1999
-23.3 C (-9.9 F)
2000
-20.0 C (-4.0 F)
2001
-18.9 C (-2.0 F)
2002
-16.1 C (3.0 F)
2003
-8.9 C (16.0 F)
2004
-21.1 C (-6.0 F)
2005
-17.8 C (0.0 F)
2006
-15.6 C (3.9 F)
2007
-18.3 C (-0.9 F)
2008
-17.2 C (1.0 F)
2009
-19.4 C (-2.9 F)
2010
-17.2 C (1.0 F)
2011
-19.4 C (-2.9 F)
2012
-13.3 C (8.1 F)
2024
n/a
2025
n/a
2026
n/a
Wettest day (Rx1day)
The wettest day of the year at Vandalia, 1899 to 2026. The record is 133.1 mm (5.2 in) in 1944, marked on the chart; the median year is 63.0 mm (2.5 in).
Wettest day (Rx1day) at Vandalia by year
Year
Wettest day (Rx1day)
1899
25.4 mm (1.0 in)
1900
80.0 mm (3.1 in)
1901
50.8 mm (2.0 in)
1902
81.3 mm (3.2 in)
1903
38.1 mm (1.5 in)
1904
57.2 mm (2.3 in)
1905
89.4 mm (3.5 in)
1906
28.7 mm (1.1 in)
1931
28.7 mm (1.1 in)
1932
53.6 mm (2.1 in)
1933
87.4 mm (3.4 in)
1934
49.8 mm (2.0 in)
1935
62.2 mm (2.4 in)
1936
76.7 mm (3.0 in)
1937
83.6 mm (3.3 in)
1938
59.7 mm (2.4 in)
1939
57.2 mm (2.3 in)
1940
80.0 mm (3.1 in)
1941
59.7 mm (2.4 in)
1942
80.0 mm (3.1 in)
1943
82.8 mm (3.3 in)
1944
133.1 mm (5.2 in)
1945
63.5 mm (2.5 in)
1946
98.0 mm (3.9 in)
1947
63.5 mm (2.5 in)
1948
63.5 mm (2.5 in)
1949
88.9 mm (3.5 in)
1950
110.7 mm (4.4 in)
1951
107.2 mm (4.2 in)
1973
55.9 mm (2.2 in)
1974
40.6 mm (1.6 in)
1975
66.8 mm (2.6 in)
1976
49.8 mm (2.0 in)
1977
71.9 mm (2.8 in)
1978
85.6 mm (3.4 in)
1979
59.9 mm (2.4 in)
1980
42.9 mm (1.7 in)
1981
47.2 mm (1.9 in)
1982
53.3 mm (2.1 in)
1983
50.8 mm (2.0 in)
1984
96.0 mm (3.8 in)
1985
55.9 mm (2.2 in)
1986
43.4 mm (1.7 in)
1987
52.8 mm (2.1 in)
1988
61.5 mm (2.4 in)
1989
30.5 mm (1.2 in)
1990
72.9 mm (2.9 in)
1991
33.3 mm (1.3 in)
1992
62.5 mm (2.5 in)
1993
86.9 mm (3.4 in)
1994
55.9 mm (2.2 in)
1995
85.3 mm (3.4 in)
1996
76.5 mm (3.0 in)
1997
66.8 mm (2.6 in)
1998
69.9 mm (2.8 in)
1999
62.0 mm (2.4 in)
2000
59.2 mm (2.3 in)
2001
41.9 mm (1.6 in)
2002
74.9 mm (2.9 in)
2003
68.8 mm (2.7 in)
2004
64.8 mm (2.6 in)
2005
58.2 mm (2.3 in)
2006
57.7 mm (2.3 in)
2007
56.4 mm (2.2 in)
2008
101.6 mm (4.0 in)
2009
78.7 mm (3.1 in)
2010
115.6 mm (4.6 in)
2011
87.4 mm (3.4 in)
2012
95.0 mm (3.7 in)
2024
0.3 mm (0.01 in)
2025
103.9 mm (4.1 in)
2026
50.8 mm (2.0 in)
Wettest five days (Rx5day)
The wettest five days of the year at Vandalia, 1899 to 2026. The record is 172.5 mm (6.8 in) in 1944, marked on the chart; the median year is 97.1 mm (3.8 in).
Wettest five days (Rx5day) at Vandalia by year
Year
Wettest five days (Rx5day)
1899
47.0 mm (1.9 in)
1900
158.8 mm (6.3 in)
1901
64.0 mm (2.5 in)
1902
115.6 mm (4.6 in)
1903
57.7 mm (2.3 in)
1904
117.5 mm (4.6 in)
1905
123.9 mm (4.9 in)
1906
70.4 mm (2.8 in)
1931
49.2 mm (1.9 in)
1932
64.1 mm (2.5 in)
1933
127.0 mm (5.0 in)
1934
83.8 mm (3.3 in)
1935
77.1 mm (3.0 in)
1936
84.6 mm (3.3 in)
1937
142.3 mm (5.6 in)
1938
136.4 mm (5.4 in)
1939
71.9 mm (2.8 in)
1940
80.0 mm (3.1 in)
1941
87.4 mm (3.4 in)
1942
81.3 mm (3.2 in)
1943
137.7 mm (5.4 in)
1944
172.5 mm (6.8 in)
1945
115.3 mm (4.5 in)
1946
142.5 mm (5.6 in)
1947
77.0 mm (3.0 in)
1948
94.5 mm (3.7 in)
1949
99.1 mm (3.9 in)
1950
126.2 mm (5.0 in)
1951
143.6 mm (5.7 in)
1973
74.7 mm (2.9 in)
1974
59.5 mm (2.3 in)
1975
81.5 mm (3.2 in)
1976
67.9 mm (2.7 in)
1977
91.9 mm (3.6 in)
1978
97.1 mm (3.8 in)
1979
70.8 mm (2.8 in)
1980
58.9 mm (2.3 in)
1981
67.8 mm (2.7 in)
1982
113.5 mm (4.5 in)
1983
97.6 mm (3.8 in)
1984
96.0 mm (3.8 in)
1985
99.8 mm (3.9 in)
1986
108.4 mm (4.3 in)
1987
72.6 mm (2.9 in)
1988
115.6 mm (4.6 in)
1989
60.3 mm (2.4 in)
1990
111.8 mm (4.4 in)
1991
71.0 mm (2.8 in)
1992
144.2 mm (5.7 in)
1993
126.2 mm (5.0 in)
1994
114.0 mm (4.5 in)
1995
137.4 mm (5.4 in)
1996
88.6 mm (3.5 in)
1997
83.4 mm (3.3 in)
1998
93.0 mm (3.7 in)
1999
74.4 mm (2.9 in)
2000
112.2 mm (4.4 in)
2001
78.2 mm (3.1 in)
2002
126.8 mm (5.0 in)
2003
113.2 mm (4.5 in)
2004
115.9 mm (4.6 in)
2005
158.3 mm (6.2 in)
2006
71.4 mm (2.8 in)
2007
83.5 mm (3.3 in)
2008
114.8 mm (4.5 in)
2009
97.1 mm (3.8 in)
2010
120.4 mm (4.7 in)
2011
116.4 mm (4.6 in)
2012
116.6 mm (4.6 in)
2024
n/a
2025
104.2 mm (4.1 in)
2026
50.0 mm (2.0 in)
Longest dry spell (CDD)
The longest dry spell of the year at Vandalia, 1899 to 2026. The record is 41 days in 2025, marked on the chart; the median year is 19 days.
Longest dry spell (CDD) at Vandalia by year
Year
Longest dry spell (CDD)
1899
15 days
1900
35 days
1901
18 days
1902
24 days
1903
16 days
1904
30 days
1905
17 days
1906
15 days
1931
18 days
1932
16 days
1933
27 days
1934
21 days
1935
17 days
1936
32 days
1937
19 days
1938
24 days
1939
22 days
1940
27 days
1941
20 days
1942
29 days
1943
27 days
1944
28 days
1945
16 days
1946
17 days
1947
29 days
1948
19 days
1949
21 days
1950
20 days
1951
16 days
1973
17 days
1974
34 days
1975
15 days
1976
25 days
1977
17 days
1978
15 days
1979
30 days
1980
22 days
1981
20 days
1982
19 days
1983
31 days
1984
29 days
1985
20 days
1986
15 days
1987
14 days
1988
22 days
1989
28 days
1990
16 days
1991
23 days
1992
24 days
1993
20 days
1994
18 days
1995
25 days
1996
19 days
1997
15 days
1998
14 days
1999
19 days
2000
18 days
2001
16 days
2002
19 days
2003
15 days
2004
22 days
2005
20 days
2006
18 days
2007
19 days
2008
18 days
2009
18 days
2010
17 days
2011
20 days
2012
29 days
2024
3 days
2025
41 days
2026
17 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
31 years with a frost
Across 31 years with a frost, the median last spring frost at Vandalia falls on 13 April and the median first autumn frost on 16 October, which leaves a median of 188 days between them.
Fitted over all years, the growing season changes by +3.9 days per decade at this station.
Frost dates and growing season at Vandalia
Measure
Median, all years
Earliest period
Recent period (1905 to 2011)
Recent against earliest
Fitted trend
Last spring frost
13 April
n/a
13 April
n/a
-2.3 days per decade
First autumn frost
16 October
n/a
17 October
n/a
+1.6 days per decade
Growing days
188 days
n/a
189 days
n/a
+3.9 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
50 years, 1901 to 2011
A day with at least 67.7 mm (2.7 in) of rain is expected about once in 2 years. A day with at least 126.5 mm (5.0 in) of rain is expected about once in 100 years.
Rainfall return levels at Vandalia: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
67.7 mm (2.7 in)
5 years
85.5 mm (3.4 in)
10 years
96.4 mm (3.8 in)
25 years
109.3 mm (4.3 in)
50 years
118.2 mm (4.7 in)
100 years
126.5 mm (5.0 in)
Longer than the 50 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, 50 years of values from 1901 to 2011.
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: 133.1 mm (5.2 in) in 1944; 115.6 mm (4.6 in) in 2010; 101.6 mm (4.0 in) in 2008.
Download the Data
Data for Vandalia standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Vandalia 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 2026-10-12 (12 October 2026). Records are computed by this site and are not official.