Record envelope, standing records and threshold days for Chenoa (USC00111475), Illinois, United States, with 76 years of record.
Key Facts for Chenoa
Chenoa (USC00111475) is a weather station in Illinois, United States at 40.74 latitude and -88.72 longitude, 219 m (719 ft) above sea level.
The station reports from 1948 to 2023, 76 years of record.
1,464 records set at Chenoa still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Chenoa tied a monthly record high maximum temperature of 26.1 C (79.0 F) on 9 November 2023.
About the Station
Location: Illinois, United States, 40.74 latitude, -88.72 longitude.
Elevation: 219 m (719 ft).
Period of record: 1948 to 2023, 76 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 Chenoa. 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 Chenoa, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
19.4 C (66.9 F)
-31.7 C (-25.1 F)
n/a
n/a
Feb
22.8 C (73.0 F)
-30.0 C (-22.0 F)
n/a
n/a
Mar
29.4 C (84.9 F)
-21.1 C (-6.0 F)
n/a
n/a
Apr
32.8 C (91.0 F)
-13.9 C (7.0 F)
n/a
n/a
May
37.2 C (99.0 F)
-5.6 C (21.9 F)
n/a
n/a
Jun
38.9 C (102.0 F)
2.2 C (36.0 F)
n/a
n/a
Jul
40.6 C (105.1 F)
7.2 C (45.0 F)
n/a
n/a
Aug
39.4 C (102.9 F)
2.8 C (37.0 F)
n/a
n/a
Sep
37.8 C (100.0 F)
-4.4 C (24.1 F)
n/a
n/a
Oct
33.3 C (91.9 F)
-8.3 C (17.1 F)
n/a
n/a
Nov
26.1 C (79.0 F)
-20.0 C (-4.0 F)
n/a
n/a
Dec
22.2 C (72.0 F)
-32.2 C (-26.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Chenoa still stand. 2012 holds the most, with 48.
Standing records at Chenoa by the year they were set
Year set
Standing records
1951
25
1952
25
1953
31
1954
27
1955
34
1956
23
1957
15
1958
23
1959
21
1960
29
1961
20
1962
20
1963
33
1964
23
1965
22
1966
25
1967
23
1968
18
1969
9
1970
19
1971
20
1972
24
1973
8
1974
22
1975
17
1976
24
1977
19
1978
17
1979
26
1980
20
1981
13
1982
25
1983
31
1984
22
1985
15
1986
20
1987
15
1988
40
1989
30
1990
25
1991
43
1992
16
1993
12
1994
13
1995
11
1996
13
1997
18
1998
26
1999
17
2000
25
2001
13
2002
18
2003
6
2004
15
2005
15
2006
14
2007
21
2008
9
2009
15
2010
12
2011
11
2012
48
2013
16
2014
19
2015
8
2017
12
2018
19
2019
25
2020
14
2021
19
2022
27
2023
16
All-Time Record Progression
4 new records
4 all-time records were set at Chenoa between 24 December 1983 and 7 July 2012. Each dot is a new record.
When Chenoa set new all-time records
Date
Kind
Detail
1983-12-24
Record low maximum temperature
Record low maximum temperature -22.8 C (-9.0 F)
1985-01-20
Record low minimum temperature
Record low minimum temperature -30.6 C (-23.1 F)
1989-12-22
Record low minimum temperature
Record low minimum temperature -32.2 C (-26.0 F)
2012-07-07
Record high maximum temperature
Record high maximum temperature 40.6 C (105.1 F)
Wettest Day of Each Month
Jul: 208.3 mm (8.2 in)
The wettest day on record for each calendar month at Chenoa. The most was 208.3 mm (8.2 in) on 9 July 1951.
Record daily precipitation for each month at Chenoa
Month
Record daily precipitation (mm)
Date
Jan
106.7 mm (4.2 in)
27 January 2004
Feb
45.7 mm (1.8 in)
11 February 2009
Mar
94.7 mm (3.7 in)
28 March 1985
Apr
84.6 mm (3.3 in)
24 April 1950
May
62.2 mm (2.4 in)
24 May 1995
Jun
95.8 mm (3.8 in)
25 June 1968
Jul
208.3 mm (8.2 in)
9 July 1951
Aug
102.9 mm (4.1 in)
6 August 2023
Sep
91.2 mm (3.6 in)
14 September 2008
Oct
143.8 mm (5.7 in)
3 October 1986
Nov
142.2 mm (5.6 in)
30 November 2008
Dec
128.8 mm (5.1 in)
3 December 1982
Period of Record Coverage
1951 to 2023
Complete yearUnder 90 percent of days
72 years of record at Chenoa, 1951 to 2023. 10 years have data for under 90 percent of days and are left out of rankings: 1951, 1964, 1967, 1968, 1969, 2015, 2017, 2020 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 56 complete years at Chenoa, 1952 to 2021. Blue stripes are years cooler than the station's own mean of 10.7 C (51.3 F); red stripes are warmer. The coolest year was 1979, at 9.2 C (48.5 F), and the warmest was 2012, at 12.9 C (55.2 F). The strongest colour marks a difference of 2.2 C (4.0 F).
Annual mean temperature at Chenoa as warming stripes, 1952 to 2021
Year
Annual mean temperature
Difference from the station mean
1952
11.1 C
+0.34 C
1953
11.6 C
+0.86 C
1954
11.7 C
+1.00 C
1956
11.3 C
+0.59 C
1957
10.7 C
-0.07 C
1958
10.0 C
-0.69 C
1960
9.6 C
-1.12 C
1961
10.3 C
-0.47 C
1962
10.0 C
-0.72 C
1963
9.9 C
-0.87 C
1965
10.4 C
-0.38 C
1966
10.3 C
-0.48 C
1970
10.3 C
-0.45 C
1971
11.1 C
+0.33 C
1972
9.5 C
-1.20 C
1973
11.5 C
+0.74 C
1974
10.5 C
-0.19 C
1975
10.6 C
-0.09 C
1976
9.6 C
-1.13 C
1978
9.5 C
-1.22 C
1979
9.2 C
-1.55 C
1980
10.2 C
-0.53 C
1981
10.3 C
-0.40 C
1982
9.7 C
-1.03 C
1983
10.7 C
-0.06 C
1984
10.6 C
-0.13 C
1985
10.1 C
-0.63 C
1986
11.1 C
+0.33 C
1987
11.9 C
+1.14 C
1988
10.8 C
+0.10 C
1990
11.9 C
+1.13 C
1991
11.9 C
+1.16 C
1992
10.6 C
-0.15 C
1993
10.2 C
-0.52 C
1994
11.0 C
+0.26 C
1995
10.6 C
-0.14 C
1996
9.8 C
-0.90 C
1997
10.0 C
-0.74 C
1998
12.5 C
+1.78 C
1999
11.5 C
+0.72 C
2000
11.0 C
+0.29 C
2001
11.5 C
+0.76 C
2002
11.3 C
+0.58 C
2003
10.7 C
-0.05 C
2004
10.9 C
+0.17 C
2005
11.4 C
+0.66 C
2006
11.9 C
+1.20 C
2007
11.5 C
+0.72 C
2008
10.1 C
-0.61 C
2009
10.2 C
-0.52 C
2010
11.0 C
+0.24 C
2011
11.2 C
+0.51 C
2012
12.9 C
+2.16 C
2014
9.3 C
-1.46 C
2018
9.8 C
-0.93 C
2021
12.6 C
+1.86 C
The fitted trend in annual mean temperature here over 1952 to 2021 is 0.12 C (0.00 to 0.23) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.21 F (-0.01 to 0.42) per decade. The slope is a straight line fitted to 56 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Chenoa
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.12 C (0.00 to 0.23) per decade
0.21 F (-0.01 to 0.42) per decade
1952 to 2021
56
Not clearly different from zero
Mean daily maximum
0.1 C (-0.1 to 0.2) per decade
0.1 F (-0.1 to 0.4) per decade
1952 to 2021
56
Not clearly different from zero
Mean daily minimum
0.17 C (0.05 to 0.29) per decade
0.3 F (0.1 to 0.5) per decade
1952 to 2021
56
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
1948 to 2023
Yearly extremes at Chenoa: 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)
2012
35.6 C (96.1 F)
72
Coldest night (TNn)
-32.2 C (-26.0 F)
1989
-23.9 C (-11.0 F)
72
Wettest day (Rx1day)
208.3 mm (8.2 in)
1951
56.9 mm (2.2 in)
75
Wettest five days (Rx5day)
216.7 mm (8.5 in)
1951
94.8 mm (3.7 in)
75
Longest dry spell (CDD)
41 days
2009
20 days
75
Hottest day (TXx)
The hottest day of the year at Chenoa, 1948 to 2023. The record is 40.6 C (105.1 F) in 2012, marked on the chart; the median year is 35.6 C (96.1 F).
Hottest day (TXx) at Chenoa by year
Year
Hottest day (TXx)
1948
n/a
1949
n/a
1950
n/a
1951
35.0 C (95.0 F)
1952
36.7 C (98.1 F)
1953
38.9 C (102.0 F)
1954
39.4 C (102.9 F)
1955
37.2 C (99.0 F)
1956
37.2 C (99.0 F)
1957
36.1 C (97.0 F)
1958
35.0 C (95.0 F)
1959
35.0 C (95.0 F)
1960
35.6 C (96.1 F)
1961
33.3 C (91.9 F)
1962
35.6 C (96.1 F)
1963
36.1 C (97.0 F)
1964
36.1 C (97.0 F)
1965
35.0 C (95.0 F)
1966
38.3 C (100.9 F)
1967
33.9 C (93.0 F)
1968
35.0 C (95.0 F)
1969
34.4 C (93.9 F)
1970
36.1 C (97.0 F)
1971
36.1 C (97.0 F)
1972
35.6 C (96.1 F)
1973
35.6 C (96.1 F)
1974
36.1 C (97.0 F)
1975
35.0 C (95.0 F)
1976
35.6 C (96.1 F)
1977
38.3 C (100.9 F)
1978
35.6 C (96.1 F)
1979
34.4 C (93.9 F)
1980
37.2 C (99.0 F)
1981
34.4 C (93.9 F)
1982
32.8 C (91.0 F)
1983
37.8 C (100.0 F)
1984
35.6 C (96.1 F)
1985
34.4 C (93.9 F)
1986
36.1 C (97.0 F)
1987
37.8 C (100.0 F)
1988
39.4 C (102.9 F)
1989
35.0 C (95.0 F)
1990
36.1 C (97.0 F)
1991
37.2 C (99.0 F)
1992
33.9 C (93.0 F)
1993
33.9 C (93.0 F)
1994
35.6 C (96.1 F)
1995
38.3 C (100.9 F)
1996
34.4 C (93.9 F)
1997
36.7 C (98.1 F)
1998
35.0 C (95.0 F)
1999
36.1 C (97.0 F)
2000
36.7 C (98.1 F)
2001
33.9 C (93.0 F)
2002
35.6 C (96.1 F)
2003
35.6 C (96.1 F)
2004
32.8 C (91.0 F)
2005
36.7 C (98.1 F)
2006
35.0 C (95.0 F)
2007
34.4 C (93.9 F)
2008
33.3 C (91.9 F)
2009
33.9 C (93.0 F)
2010
35.6 C (96.1 F)
2011
37.2 C (99.0 F)
2012
40.6 C (105.1 F)
2013
36.7 C (98.1 F)
2014
35.0 C (95.0 F)
2015
30.6 C (87.1 F)
2017
33.9 C (93.0 F)
2018
35.6 C (96.1 F)
2019
33.9 C (93.0 F)
2020
33.9 C (93.0 F)
2021
36.7 C (98.1 F)
2022
38.3 C (100.9 F)
2023
37.2 C (99.0 F)
Coldest night (TNn)
The coldest night of the year at Chenoa, 1948 to 2023. The record is -32.2 C (-26.0 F) in 1989, marked on the chart; the median year is -23.9 C (-11.0 F).
Coldest night (TNn) at Chenoa by year
Year
Coldest night (TNn)
1948
n/a
1949
n/a
1950
n/a
1951
-25.6 C (-14.1 F)
1952
-19.4 C (-2.9 F)
1953
-20.0 C (-4.0 F)
1954
-21.1 C (-6.0 F)
1955
-25.0 C (-13.0 F)
1956
-17.8 C (0.0 F)
1957
-25.6 C (-14.1 F)
1958
-25.0 C (-13.0 F)
1959
-23.9 C (-11.0 F)
1960
-26.1 C (-15.0 F)
1961
-23.3 C (-9.9 F)
1962
-23.9 C (-11.0 F)
1963
-27.8 C (-18.0 F)
1964
-20.6 C (-5.1 F)
1965
-22.8 C (-9.0 F)
1966
-26.1 C (-15.0 F)
1967
-23.3 C (-9.9 F)
1968
-26.7 C (-16.1 F)
1969
-22.2 C (-8.0 F)
1970
-26.1 C (-15.0 F)
1971
-21.1 C (-6.0 F)
1972
-27.2 C (-17.0 F)
1973
-20.6 C (-5.1 F)
1974
-26.7 C (-16.1 F)
1975
-26.1 C (-15.0 F)
1976
-24.4 C (-11.9 F)
1977
-29.4 C (-20.9 F)
1978
-23.3 C (-9.9 F)
1979
-28.9 C (-20.0 F)
1980
-23.9 C (-11.0 F)
1981
-26.1 C (-15.0 F)
1982
-29.4 C (-20.9 F)
1983
-28.3 C (-18.9 F)
1984
-28.3 C (-18.9 F)
1985
-30.6 C (-23.1 F)
1986
-21.7 C (-7.1 F)
1987
-25.0 C (-13.0 F)
1988
-23.9 C (-11.0 F)
1989
-32.2 C (-26.0 F)
1990
-20.0 C (-4.0 F)
1991
-19.4 C (-2.9 F)
1992
-21.7 C (-7.1 F)
1993
-21.7 C (-7.1 F)
1994
-28.3 C (-18.9 F)
1995
-20.6 C (-5.1 F)
1996
-28.3 C (-18.9 F)
1997
-24.4 C (-11.9 F)
1998
-18.3 C (-0.9 F)
1999
-30.6 C (-23.1 F)
2000
-25.0 C (-13.0 F)
2001
-22.2 C (-8.0 F)
2002
-21.1 C (-6.0 F)
2003
-23.3 C (-9.9 F)
2004
-23.9 C (-11.0 F)
2005
-27.2 C (-17.0 F)
2006
-20.6 C (-5.1 F)
2007
-23.3 C (-9.9 F)
2008
-23.3 C (-9.9 F)
2009
-31.7 C (-25.1 F)
2010
-22.8 C (-9.0 F)
2011
-23.3 C (-9.9 F)
2012
-19.4 C (-2.9 F)
2013
-17.2 C (1.0 F)
2014
-30.0 C (-22.0 F)
2015
-24.4 C (-11.9 F)
2017
-23.9 C (-11.0 F)
2018
-28.3 C (-18.9 F)
2019
-30.6 C (-23.1 F)
2020
-14.4 C (6.1 F)
2021
-21.7 C (-7.1 F)
2022
-20.0 C (-4.0 F)
2023
-16.1 C (3.0 F)
Wettest day (Rx1day)
The wettest day of the year at Chenoa, 1948 to 2023. The record is 208.3 mm (8.2 in) in 1951, marked on the chart; the median year is 56.9 mm (2.2 in).
Wettest day (Rx1day) at Chenoa by year
Year
Wettest day (Rx1day)
1948
37.3 mm (1.5 in)
1949
72.1 mm (2.8 in)
1950
84.6 mm (3.3 in)
1951
208.3 mm (8.2 in)
1952
53.3 mm (2.1 in)
1953
68.6 mm (2.7 in)
1954
57.2 mm (2.3 in)
1955
73.7 mm (2.9 in)
1956
37.3 mm (1.5 in)
1957
91.4 mm (3.6 in)
1958
62.2 mm (2.4 in)
1959
55.9 mm (2.2 in)
1960
63.5 mm (2.5 in)
1961
56.4 mm (2.2 in)
1962
55.9 mm (2.2 in)
1963
48.3 mm (1.9 in)
1964
43.7 mm (1.7 in)
1965
78.7 mm (3.1 in)
1966
43.9 mm (1.7 in)
1967
50.8 mm (2.0 in)
1968
95.8 mm (3.8 in)
1969
33.0 mm (1.3 in)
1970
62.7 mm (2.5 in)
1971
56.9 mm (2.2 in)
1972
51.3 mm (2.0 in)
1973
86.1 mm (3.4 in)
1974
53.6 mm (2.1 in)
1975
52.3 mm (2.1 in)
1976
47.5 mm (1.9 in)
1977
69.6 mm (2.7 in)
1978
35.6 mm (1.4 in)
1979
73.7 mm (2.9 in)
1980
92.2 mm (3.6 in)
1981
52.6 mm (2.1 in)
1982
128.8 mm (5.1 in)
1983
41.4 mm (1.6 in)
1984
43.2 mm (1.7 in)
1985
94.7 mm (3.7 in)
1986
143.8 mm (5.7 in)
1987
35.1 mm (1.4 in)
1988
35.3 mm (1.4 in)
1989
47.2 mm (1.9 in)
1990
55.1 mm (2.2 in)
1991
39.4 mm (1.6 in)
1992
35.8 mm (1.4 in)
1993
56.9 mm (2.2 in)
1994
39.9 mm (1.6 in)
1995
62.2 mm (2.4 in)
1996
71.4 mm (2.8 in)
1997
99.8 mm (3.9 in)
1998
44.5 mm (1.8 in)
1999
41.7 mm (1.6 in)
2000
55.9 mm (2.2 in)
2001
44.7 mm (1.8 in)
2002
54.4 mm (2.1 in)
2003
56.1 mm (2.2 in)
2004
106.7 mm (4.2 in)
2005
48.0 mm (1.9 in)
2006
70.9 mm (2.8 in)
2007
107.7 mm (4.2 in)
2008
142.2 mm (5.6 in)
2009
77.2 mm (3.0 in)
2010
38.4 mm (1.5 in)
2011
48.3 mm (1.9 in)
2012
62.7 mm (2.5 in)
2013
59.2 mm (2.3 in)
2014
66.0 mm (2.6 in)
2015
30.7 mm (1.2 in)
2017
58.4 mm (2.3 in)
2018
58.4 mm (2.3 in)
2019
77.7 mm (3.1 in)
2020
76.2 mm (3.0 in)
2021
57.2 mm (2.3 in)
2022
59.7 mm (2.4 in)
2023
102.9 mm (4.1 in)
Wettest five days (Rx5day)
The wettest five days of the year at Chenoa, 1948 to 2023. The record is 216.7 mm (8.5 in) in 1951, marked on the chart; the median year is 94.8 mm (3.7 in).
Wettest five days (Rx5day) at Chenoa by year
Year
Wettest five days (Rx5day)
1948
64.0 mm (2.5 in)
1949
104.1 mm (4.1 in)
1950
123.7 mm (4.9 in)
1951
216.7 mm (8.5 in)
1952
81.3 mm (3.2 in)
1953
87.6 mm (3.4 in)
1954
108.0 mm (4.3 in)
1955
76.2 mm (3.0 in)
1956
73.7 mm (2.9 in)
1957
121.5 mm (4.8 in)
1958
113.6 mm (4.5 in)
1959
67.3 mm (2.6 in)
1960
79.2 mm (3.1 in)
1961
124.4 mm (4.9 in)
1962
106.0 mm (4.2 in)
1963
52.9 mm (2.1 in)
1964
110.3 mm (4.3 in)
1965
113.8 mm (4.5 in)
1966
82.1 mm (3.2 in)
1967
91.5 mm (3.6 in)
1968
133.9 mm (5.3 in)
1969
58.8 mm (2.3 in)
1970
93.2 mm (3.7 in)
1971
74.7 mm (2.9 in)
1972
67.3 mm (2.6 in)
1973
111.8 mm (4.4 in)
1974
79.1 mm (3.1 in)
1975
66.2 mm (2.6 in)
1976
81.8 mm (3.2 in)
1977
156.2 mm (6.1 in)
1978
46.7 mm (1.8 in)
1979
115.9 mm (4.6 in)
1980
151.7 mm (6.0 in)
1981
95.2 mm (3.7 in)
1982
182.6 mm (7.2 in)
1983
86.4 mm (3.4 in)
1984
71.4 mm (2.8 in)
1985
111.3 mm (4.4 in)
1986
179.2 mm (7.1 in)
1987
72.4 mm (2.9 in)
1988
53.3 mm (2.1 in)
1989
116.3 mm (4.6 in)
1990
95.3 mm (3.8 in)
1991
72.1 mm (2.8 in)
1992
75.5 mm (3.0 in)
1993
88.7 mm (3.5 in)
1994
74.1 mm (2.9 in)
1995
94.8 mm (3.7 in)
1996
100.8 mm (4.0 in)
1997
117.1 mm (4.6 in)
1998
71.2 mm (2.8 in)
1999
74.5 mm (2.9 in)
2000
97.7 mm (3.8 in)
2001
81.5 mm (3.2 in)
2002
106.0 mm (4.2 in)
2003
94.2 mm (3.7 in)
2004
66.8 mm (2.6 in)
2005
59.4 mm (2.3 in)
2006
96.3 mm (3.8 in)
2007
114.3 mm (4.5 in)
2008
142.2 mm (5.6 in)
2009
94.8 mm (3.7 in)
2010
49.7 mm (2.0 in)
2011
64.5 mm (2.5 in)
2012
103.8 mm (4.1 in)
2013
140.3 mm (5.5 in)
2014
92.5 mm (3.6 in)
2015
45.9 mm (1.8 in)
2017
61.9 mm (2.4 in)
2018
105.0 mm (4.1 in)
2019
115.8 mm (4.6 in)
2020
154.0 mm (6.1 in)
2021
112.1 mm (4.4 in)
2022
127.8 mm (5.0 in)
2023
168.5 mm (6.6 in)
Longest dry spell (CDD)
The longest dry spell of the year at Chenoa, 1948 to 2023. The record is 41 days in 2009, marked on the chart; the median year is 20 days.
Longest dry spell (CDD) at Chenoa by year
Year
Longest dry spell (CDD)
1948
15 days
1949
21 days
1950
19 days
1951
16 days
1952
21 days
1953
25 days
1954
32 days
1955
24 days
1956
21 days
1957
26 days
1958
23 days
1959
14 days
1960
19 days
1961
18 days
1962
20 days
1963
18 days
1964
35 days
1965
20 days
1966
26 days
1967
17 days
1968
20 days
1969
15 days
1970
17 days
1971
38 days
1972
12 days
1973
20 days
1974
17 days
1975
13 days
1976
26 days
1977
16 days
1978
16 days
1979
29 days
1980
17 days
1981
24 days
1982
14 days
1983
26 days
1984
16 days
1985
14 days
1986
23 days
1987
39 days
1988
24 days
1989
24 days
1990
15 days
1991
21 days
1992
20 days
1993
20 days
1994
16 days
1995
36 days
1996
20 days
1997
17 days
1998
27 days
1999
37 days
2000
18 days
2001
15 days
2002
28 days
2003
23 days
2004
20 days
2005
21 days
2006
16 days
2007
22 days
2008
17 days
2009
41 days
2010
20 days
2011
20 days
2012
21 days
2013
16 days
2014
21 days
2015
20 days
2017
34 days
2018
13 days
2019
12 days
2020
16 days
2021
12 days
2022
13 days
2023
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
56 years with a frost
Across 56 years with a frost, the median last spring frost at Chenoa falls on 23 April and the median first autumn frost on 11 October, which leaves a median of 170 days between them.
Fitted over all years, the growing season changes by +3.8 days per decade at this station.
Frost dates and growing season at Chenoa
Measure
Median, all years
Earliest period
Recent period (1985 to 2021)
Recent against earliest
Fitted trend
Last spring frost
23 April
n/a
21 April
n/a
-2.7 days per decade
First autumn frost
11 October
n/a
12 October
n/a
+1.1 days per decade
Growing days
170 days
n/a
177 days
n/a
+3.8 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
67 years, 1949 to 2021
A day with at least 57.8 mm (2.3 in) of rain is expected about once in 2 years. A day with at least 176.2 mm (6.9 in) of rain is expected about once in 100 years.
Rainfall return levels at Chenoa: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
57.8 mm (2.3 in)
5 years
79.3 mm (3.1 in)
10 years
96.9 mm (3.8 in)
25 years
123.9 mm (4.9 in)
50 years
148.1 mm (5.8 in)
100 years
176.2 mm (6.9 in)
Longer than the 67 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, 67 years of values from 1949 to 2021.
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: 208.3 mm (8.2 in) in 1951; 143.8 mm (5.7 in) in 1986; 128.8 mm (5.1 in) in 1982.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Chenoa standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Chenoa 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.