Record envelope, standing records and threshold days for Ida Grove 5NW (USC00134038), Iowa, United States, with 106 years of record.
Key Facts for Ida Grove 5NW
Ida Grove 5NW (USC00134038) is a weather station in Iowa, United States at 42.39 latitude and -95.52 longitude, 402 m (1,320 ft) above sea level.
The station reports from 1902 to 2007, 106 years of record.
1,464 records set at Ida Grove 5NW still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Ida Grove 5NW tied a daily record snowfall of 2.5 cm (1.0 in) on 26 December 2007.
About the Station
Location: Iowa, United States, 42.39 latitude, -95.52 longitude.
Elevation: 402 m (1,320 ft).
Period of record: 1902 to 2007, 106 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 Ida Grove 5NW. 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 Ida Grove 5NW, 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)
-35.6 C (-32.1 F)
n/a
n/a
Feb
20.6 C (69.1 F)
-35.0 C (-31.0 F)
n/a
n/a
Mar
35.0 C (95.0 F)
-31.1 C (-24.0 F)
n/a
n/a
Apr
36.1 C (97.0 F)
-16.1 C (3.0 F)
n/a
n/a
May
38.3 C (100.9 F)
-7.2 C (19.0 F)
n/a
n/a
Jun
40.6 C (105.1 F)
1.1 C (34.0 F)
n/a
n/a
Jul
40.6 C (105.1 F)
5.0 C (41.0 F)
n/a
n/a
Aug
39.4 C (102.9 F)
1.1 C (34.0 F)
n/a
n/a
Sep
38.3 C (100.9 F)
-5.6 C (21.9 F)
n/a
n/a
Oct
33.9 C (93.0 F)
-12.2 C (10.0 F)
n/a
n/a
Nov
27.8 C (82.0 F)
-25.0 C (-13.0 F)
n/a
n/a
Dec
20.0 C (68.0 F)
-33.3 C (-27.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Ida Grove 5NW still stand. 1947 holds the most, with 55.
Standing records at Ida Grove 5NW by the year they were set
Year set
Standing records
1902
1
1903
10
1904
9
1905
27
1906
24
1945
23
1946
26
1947
55
1948
12
1949
17
1950
22
1951
16
1952
16
1953
26
1954
31
1955
48
1956
20
1957
16
1958
24
1959
34
1960
21
1961
14
1962
38
1963
25
1964
24
1965
42
1966
30
1967
24
1968
21
1969
18
1970
20
1971
11
1972
19
1973
9
1974
26
1975
18
1976
26
1977
18
1978
12
1979
15
1980
21
1981
30
1982
13
1983
23
1984
13
1985
26
1986
19
1987
11
1988
5
1989
20
1990
19
1991
35
1992
17
1993
16
1994
23
1995
15
1996
28
1997
30
1998
21
1999
14
2000
35
2001
22
2002
20
2003
17
2004
14
2005
26
2006
24
2007
19
All-Time Record Progression
2 new records
2 all-time records were set at Ida Grove 5NW between 17 July 1982 and 6 February 1983. Each dot is a new record.
When Ida Grove 5NW set new all-time records
Date
Kind
Detail
1982-07-17
Record high minimum temperature
Record high minimum temperature 27.8 C (82.0 F)
1983-02-06
Record daily snowfall
Record daily snowfall 38.1 cm (15.0 in)
Wettest Day of Each Month
Aug: 279.7 mm (11.0 in)
The wettest day on record for each calendar month at Ida Grove 5NW. The most was 279.7 mm (11.0 in) on 31 August 1962.
Record daily precipitation for each month at Ida Grove 5NW
Month
Record daily precipitation (mm)
Date
Jan
38.1 mm (1.5 in)
16 January 2003
Feb
33.8 mm (1.3 in)
19 February 1971
Mar
58.4 mm (2.3 in)
28 March 2004
Apr
68.1 mm (2.7 in)
28 April 1975
May
170.7 mm (6.7 in)
6 May 2007
Jun
111.8 mm (4.4 in)
20 June 1996
Jul
97.0 mm (3.8 in)
6 July 1982
Aug
279.7 mm (11.0 in)
31 August 1962
Sep
124.0 mm (4.9 in)
13 September 1978
Oct
74.7 mm (2.9 in)
2 October 1954
Nov
61.0 mm (2.4 in)
30 November 1991
Dec
43.2 mm (1.7 in)
16 December 1984
Period of Record Coverage
1902 to 2007
Complete yearUnder 90 percent of days
68 years of record at Ida Grove 5NW, 1902 to 2007. 11 years have data for under 90 percent of days and are left out of rankings: 1902, 1903, 1904, 1905, 1906, 1948, 1976, 1982 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 53 complete years at Ida Grove 5NW, 1945 to 2007. Blue stripes are years cooler than the station's own mean of 8.7 C (47.6 F); red stripes are warmer. The coolest year was 1996, at 6.7 C (44.0 F), and the warmest was 2006, at 10.4 C (50.6 F). The strongest colour marks a difference of 2.0 C (3.6 F).
Annual mean temperature at Ida Grove 5NW as warming stripes, 1945 to 2007
Year
Annual mean temperature
Difference from the station mean
1945
8.8 C
+0.17 C
1946
10.0 C
+1.37 C
1949
9.5 C
+0.79 C
1950
7.5 C
-1.17 C
1951
7.3 C
-1.33 C
1953
10.3 C
+1.67 C
1954
10.3 C
+1.61 C
1956
9.3 C
+0.68 C
1957
8.6 C
-0.09 C
1958
8.3 C
-0.39 C
1959
8.5 C
-0.16 C
1960
7.8 C
-0.86 C
1961
8.1 C
-0.52 C
1962
8.0 C
-0.70 C
1963
8.6 C
-0.07 C
1964
8.4 C
-0.24 C
1965
7.7 C
-0.97 C
1966
7.9 C
-0.72 C
1967
8.4 C
-0.22 C
1968
8.8 C
+0.16 C
1969
7.7 C
-0.92 C
1970
8.5 C
-0.14 C
1971
8.8 C
+0.13 C
1972
7.7 C
-0.98 C
1973
9.5 C
+0.85 C
1974
9.2 C
+0.57 C
1975
8.8 C
+0.09 C
1977
9.8 C
+1.12 C
1978
7.9 C
-0.76 C
1979
7.8 C
-0.86 C
1980
9.8 C
+1.14 C
1984
8.9 C
+0.22 C
1985
8.2 C
-0.46 C
1986
9.6 C
+0.93 C
1989
8.0 C
-0.71 C
1990
9.2 C
+0.58 C
1991
8.6 C
-0.07 C
1992
8.5 C
-0.18 C
1993
6.7 C
-1.97 C
1994
8.1 C
-0.61 C
1995
8.1 C
-0.56 C
1996
6.7 C
-1.98 C
1997
8.0 C
-0.65 C
1998
9.9 C
+1.28 C
1999
9.4 C
+0.72 C
2000
8.9 C
+0.19 C
2001
9.0 C
+0.32 C
2002
8.9 C
+0.28 C
2003
8.6 C
-0.10 C
2004
9.0 C
+0.36 C
2005
9.8 C
+1.16 C
2006
10.4 C
+1.69 C
2007
9.2 C
+0.55 C
The fitted trend in annual mean temperature here over 1945 to 2007 is 0.03 C (-0.10 to 0.16) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.05 F (-0.19 to 0.29) per decade. The slope is a straight line fitted to 53 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Ida Grove 5NW
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.03 C (-0.10 to 0.16) per decade
0.05 F (-0.19 to 0.29) per decade
1945 to 2007
53
Not clearly different from zero
Mean daily maximum
-0.12 C (-0.28 to 0.04) per decade
-0.2 F (-0.5 to 0.1) per decade
1945 to 2007
53
Not clearly different from zero
Mean daily minimum
0.17 C (0.05 to 0.30) per decade
0.3 F (0.1 to 0.5) per decade
1945 to 2007
53
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
1902 to 2007
Yearly extremes at Ida Grove 5NW: 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)
1955
36.1 C (97.0 F)
68
Coldest night (TNn)
-35.6 C (-32.1 F)
1970
-28.9 C (-20.0 F)
68
Wettest day (Rx1day)
279.7 mm (11.0 in)
1962
61.0 mm (2.4 in)
68
Wettest five days (Rx5day)
317.3 mm (12.5 in)
1962
91.8 mm (3.6 in)
68
Longest dry spell (CDD)
63 days
1952
30 days
68
Hottest day (TXx)
The hottest day of the year at Ida Grove 5NW, 1902 to 2007. The record is 40.6 C (105.1 F) in 1955, marked on the chart; the median year is 36.1 C (97.0 F).
Hottest day (TXx) at Ida Grove 5NW by year
Year
Hottest day (TXx)
1902
21.1 C (70.0 F)
1903
33.3 C (91.9 F)
1904
35.0 C (95.0 F)
1905
36.1 C (97.0 F)
1906
37.8 C (100.0 F)
1945
36.1 C (97.0 F)
1946
39.4 C (102.9 F)
1947
38.9 C (102.0 F)
1948
36.7 C (98.1 F)
1949
37.2 C (99.0 F)
1950
33.3 C (91.9 F)
1951
35.0 C (95.0 F)
1952
37.2 C (99.0 F)
1953
38.3 C (100.9 F)
1954
40.0 C (104.0 F)
1955
40.6 C (105.1 F)
1956
40.0 C (104.0 F)
1957
36.7 C (98.1 F)
1958
36.7 C (98.1 F)
1959
35.6 C (96.1 F)
1960
34.4 C (93.9 F)
1961
34.4 C (93.9 F)
1962
33.9 C (93.0 F)
1963
35.0 C (95.0 F)
1964
36.1 C (97.0 F)
1965
36.1 C (97.0 F)
1966
36.1 C (97.0 F)
1967
38.3 C (100.9 F)
1968
35.6 C (96.1 F)
1969
35.6 C (96.1 F)
1970
37.2 C (99.0 F)
1971
36.7 C (98.1 F)
1972
35.0 C (95.0 F)
1973
35.0 C (95.0 F)
1974
37.2 C (99.0 F)
1975
35.6 C (96.1 F)
1976
37.8 C (100.0 F)
1977
37.8 C (100.0 F)
1978
36.1 C (97.0 F)
1979
36.7 C (98.1 F)
1980
39.4 C (102.9 F)
1981
36.1 C (97.0 F)
1982
37.2 C (99.0 F)
1983
30.6 C (87.1 F)
1984
36.1 C (97.0 F)
1985
40.6 C (105.1 F)
1986
35.0 C (95.0 F)
1987
38.3 C (100.9 F)
1988
32.2 C (90.0 F)
1989
36.1 C (97.0 F)
1990
37.2 C (99.0 F)
1991
35.0 C (95.0 F)
1992
31.7 C (89.1 F)
1993
33.3 C (91.9 F)
1994
33.9 C (93.0 F)
1995
38.3 C (100.9 F)
1996
33.3 C (91.9 F)
1997
35.6 C (96.1 F)
1998
34.4 C (93.9 F)
1999
36.1 C (97.0 F)
2000
38.3 C (100.9 F)
2001
35.6 C (96.1 F)
2002
36.7 C (98.1 F)
2003
36.7 C (98.1 F)
2004
32.8 C (91.0 F)
2005
36.1 C (97.0 F)
2006
39.4 C (102.9 F)
2007
35.6 C (96.1 F)
Coldest night (TNn)
The coldest night of the year at Ida Grove 5NW, 1902 to 2007. The record is -35.6 C (-32.1 F) in 1970, marked on the chart; the median year is -28.9 C (-20.0 F).
Coldest night (TNn) at Ida Grove 5NW by year
Year
Coldest night (TNn)
1902
-25.6 C (-14.1 F)
1903
-28.9 C (-20.0 F)
1904
-31.1 C (-24.0 F)
1905
-35.0 C (-31.0 F)
1906
-30.6 C (-23.1 F)
1945
-23.9 C (-11.0 F)
1946
-28.9 C (-20.0 F)
1947
-27.8 C (-18.0 F)
1948
-30.0 C (-22.0 F)
1949
-26.7 C (-16.1 F)
1950
-29.4 C (-20.9 F)
1951
-30.6 C (-23.1 F)
1952
-27.8 C (-18.0 F)
1953
-28.9 C (-20.0 F)
1954
-27.8 C (-18.0 F)
1955
-28.3 C (-18.9 F)
1956
-31.1 C (-24.0 F)
1957
-30.6 C (-23.1 F)
1958
-34.4 C (-29.9 F)
1959
-30.6 C (-23.1 F)
1960
-31.1 C (-24.0 F)
1961
-28.3 C (-18.9 F)
1962
-31.7 C (-25.1 F)
1963
-30.0 C (-22.0 F)
1964
-28.9 C (-20.0 F)
1965
-32.8 C (-27.0 F)
1966
-31.7 C (-25.1 F)
1967
-31.1 C (-24.0 F)
1968
-29.4 C (-20.9 F)
1969
-28.9 C (-20.0 F)
1970
-35.6 C (-32.1 F)
1971
-31.7 C (-25.1 F)
1972
-31.7 C (-25.1 F)
1973
-26.7 C (-16.1 F)
1974
-32.8 C (-27.0 F)
1975
-29.4 C (-20.9 F)
1976
-28.9 C (-20.0 F)
1977
-29.4 C (-20.9 F)
1978
-28.9 C (-20.0 F)
1979
-32.2 C (-26.0 F)
1980
-27.8 C (-18.0 F)
1981
-31.7 C (-25.1 F)
1982
-35.6 C (-32.1 F)
1983
-33.3 C (-27.9 F)
1984
-27.2 C (-17.0 F)
1985
-33.3 C (-27.9 F)
1986
-27.2 C (-17.0 F)
1987
-16.1 C (3.0 F)
1988
-32.2 C (-26.0 F)
1989
-33.3 C (-27.9 F)
1990
-28.9 C (-20.0 F)
1991
-24.4 C (-11.9 F)
1992
-25.0 C (-13.0 F)
1993
-26.7 C (-16.1 F)
1994
-30.0 C (-22.0 F)
1995
-25.0 C (-13.0 F)
1996
-33.3 C (-27.9 F)
1997
-26.1 C (-15.0 F)
1998
-23.3 C (-9.9 F)
1999
-27.2 C (-17.0 F)
2000
-27.2 C (-17.0 F)
2001
-26.7 C (-16.1 F)
2002
-23.3 C (-9.9 F)
2003
-25.0 C (-13.0 F)
2004
-26.7 C (-16.1 F)
2005
-23.9 C (-11.0 F)
2006
-25.6 C (-14.1 F)
2007
-25.0 C (-13.0 F)
Wettest day (Rx1day)
The wettest day of the year at Ida Grove 5NW, 1902 to 2007. The record is 279.7 mm (11.0 in) in 1962, marked on the chart; the median year is 61.0 mm (2.4 in).
Wettest day (Rx1day) at Ida Grove 5NW by year
Year
Wettest day (Rx1day)
1902
23.1 mm (0.9 in)
1903
38.6 mm (1.5 in)
1904
50.8 mm (2.0 in)
1905
57.2 mm (2.3 in)
1906
71.4 mm (2.8 in)
1945
78.0 mm (3.1 in)
1946
50.3 mm (2.0 in)
1947
43.2 mm (1.7 in)
1948
39.4 mm (1.6 in)
1949
47.0 mm (1.9 in)
1950
76.2 mm (3.0 in)
1951
85.6 mm (3.4 in)
1952
83.1 mm (3.3 in)
1953
54.1 mm (2.1 in)
1954
74.7 mm (2.9 in)
1955
72.1 mm (2.8 in)
1956
45.5 mm (1.8 in)
1957
59.9 mm (2.4 in)
1958
36.1 mm (1.4 in)
1959
81.3 mm (3.2 in)
1960
40.6 mm (1.6 in)
1961
64.5 mm (2.5 in)
1962
279.7 mm (11.0 in)
1963
82.3 mm (3.2 in)
1964
87.4 mm (3.4 in)
1965
59.7 mm (2.4 in)
1966
82.0 mm (3.2 in)
1967
86.1 mm (3.4 in)
1968
117.9 mm (4.6 in)
1969
93.7 mm (3.7 in)
1970
45.0 mm (1.8 in)
1971
42.4 mm (1.7 in)
1972
74.9 mm (2.9 in)
1973
55.9 mm (2.2 in)
1974
50.8 mm (2.0 in)
1975
70.9 mm (2.8 in)
1976
42.2 mm (1.7 in)
1977
55.6 mm (2.2 in)
1978
124.0 mm (4.9 in)
1979
54.6 mm (2.1 in)
1980
78.0 mm (3.1 in)
1981
94.0 mm (3.7 in)
1982
97.0 mm (3.8 in)
1983
86.6 mm (3.4 in)
1984
68.6 mm (2.7 in)
1985
87.4 mm (3.4 in)
1986
59.7 mm (2.4 in)
1987
59.7 mm (2.4 in)
1988
35.3 mm (1.4 in)
1989
47.8 mm (1.9 in)
1990
106.7 mm (4.2 in)
1991
61.0 mm (2.4 in)
1992
44.7 mm (1.8 in)
1993
45.2 mm (1.8 in)
1994
53.3 mm (2.1 in)
1995
50.8 mm (2.0 in)
1996
111.8 mm (4.4 in)
1997
58.4 mm (2.3 in)
1998
81.3 mm (3.2 in)
1999
66.5 mm (2.6 in)
2000
61.0 mm (2.4 in)
2001
64.8 mm (2.6 in)
2002
54.9 mm (2.2 in)
2003
50.8 mm (2.0 in)
2004
101.6 mm (4.0 in)
2005
66.0 mm (2.6 in)
2006
52.8 mm (2.1 in)
2007
170.7 mm (6.7 in)
Wettest five days (Rx5day)
The wettest five days of the year at Ida Grove 5NW, 1902 to 2007. The record is 317.3 mm (12.5 in) in 1962, marked on the chart; the median year is 91.8 mm (3.6 in).
Wettest five days (Rx5day) at Ida Grove 5NW by year
Year
Wettest five days (Rx5day)
1902
23.1 mm (0.9 in)
1903
69.9 mm (2.8 in)
1904
61.8 mm (2.4 in)
1905
71.4 mm (2.8 in)
1906
72.9 mm (2.9 in)
1945
124.5 mm (4.9 in)
1946
98.8 mm (3.9 in)
1947
60.0 mm (2.4 in)
1948
55.7 mm (2.2 in)
1949
83.6 mm (3.3 in)
1950
96.5 mm (3.8 in)
1951
178.6 mm (7.0 in)
1952
95.0 mm (3.7 in)
1953
68.6 mm (2.7 in)
1954
121.0 mm (4.8 in)
1955
73.9 mm (2.9 in)
1956
60.2 mm (2.4 in)
1957
90.6 mm (3.6 in)
1958
58.5 mm (2.3 in)
1959
140.9 mm (5.5 in)
1960
76.9 mm (3.0 in)
1961
66.8 mm (2.6 in)
1962
317.3 mm (12.5 in)
1963
88.6 mm (3.5 in)
1964
135.4 mm (5.3 in)
1965
138.5 mm (5.5 in)
1966
98.3 mm (3.9 in)
1967
182.4 mm (7.2 in)
1968
138.7 mm (5.5 in)
1969
126.7 mm (5.0 in)
1970
115.9 mm (4.6 in)
1971
97.2 mm (3.8 in)
1972
90.2 mm (3.6 in)
1973
92.1 mm (3.6 in)
1974
55.1 mm (2.2 in)
1975
90.2 mm (3.6 in)
1976
82.4 mm (3.2 in)
1977
72.1 mm (2.8 in)
1978
138.0 mm (5.4 in)
1979
88.2 mm (3.5 in)
1980
103.6 mm (4.1 in)
1981
104.2 mm (4.1 in)
1982
122.4 mm (4.8 in)
1983
140.2 mm (5.5 in)
1984
105.2 mm (4.1 in)
1985
91.5 mm (3.6 in)
1986
121.4 mm (4.8 in)
1987
83.3 mm (3.3 in)
1988
68.1 mm (2.7 in)
1989
84.6 mm (3.3 in)
1990
163.9 mm (6.5 in)
1991
110.0 mm (4.3 in)
1992
82.4 mm (3.2 in)
1993
86.7 mm (3.4 in)
1994
75.3 mm (3.0 in)
1995
69.3 mm (2.7 in)
1996
221.8 mm (8.7 in)
1997
109.7 mm (4.3 in)
1998
82.0 mm (3.2 in)
1999
71.6 mm (2.8 in)
2000
65.6 mm (2.6 in)
2001
105.5 mm (4.2 in)
2002
92.5 mm (3.6 in)
2003
127.7 mm (5.0 in)
2004
108.4 mm (4.3 in)
2005
101.2 mm (4.0 in)
2006
83.3 mm (3.3 in)
2007
196.1 mm (7.7 in)
Longest dry spell (CDD)
The longest dry spell of the year at Ida Grove 5NW, 1902 to 2007. The record is 63 days in 1952, marked on the chart; the median year is 30 days.
Longest dry spell (CDD) at Ida Grove 5NW by year
Year
Longest dry spell (CDD)
1902
27 days
1903
27 days
1904
37 days
1905
30 days
1906
28 days
1945
37 days
1946
33 days
1947
32 days
1948
24 days
1949
33 days
1950
29 days
1951
34 days
1952
63 days
1953
27 days
1954
25 days
1955
34 days
1956
48 days
1957
37 days
1958
31 days
1959
19 days
1960
30 days
1961
30 days
1962
48 days
1963
27 days
1964
22 days
1965
22 days
1966
49 days
1967
51 days
1968
22 days
1969
18 days
1970
21 days
1971
32 days
1972
22 days
1973
20 days
1974
17 days
1975
17 days
1976
41 days
1977
25 days
1978
19 days
1979
29 days
1980
33 days
1981
31 days
1982
16 days
1983
18 days
1984
46 days
1985
46 days
1986
35 days
1987
17 days
1988
44 days
1989
32 days
1990
31 days
1991
24 days
1992
22 days
1993
22 days
1994
44 days
1995
34 days
1996
27 days
1997
23 days
1998
44 days
1999
23 days
2000
23 days
2001
41 days
2002
35 days
2003
21 days
2004
23 days
2005
30 days
2006
28 days
2007
45 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
53 years with a frost
Across 53 years with a frost, the median last spring frost at Ida Grove 5NW falls on 3 May and the median first autumn frost on 2 October, which leaves a median of 152 days between them.
Fitted over all years, the growing season changes by +4.1 days per decade at this station.
Frost dates and growing season at Ida Grove 5NW
Measure
Median, all years
Earliest period
Recent period (1972 to 2007)
Recent against earliest
Fitted trend
Last spring frost
3 May
n/a
28 April
n/a
-2.6 days per decade
First autumn frost
2 October
n/a
3 October
n/a
+1.5 days per decade
Growing days
152 days
n/a
158 days
n/a
+4.1 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
59 years, 1945 to 2007
A day with at least 64.6 mm (2.5 in) of rain is expected about once in 2 years. A day with at least 211.2 mm (8.3 in) of rain is expected about once in 100 years.
Rainfall return levels at Ida Grove 5NW: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
64.6 mm (2.5 in)
5 years
89.9 mm (3.5 in)
10 years
111.2 mm (4.4 in)
25 years
144.5 mm (5.7 in)
50 years
175.0 mm (6.9 in)
100 years
211.2 mm (8.3 in)
Longer than the 59 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, 59 years of values from 1945 to 2007.
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: 279.7 mm (11.0 in) in 1962; 170.7 mm (6.7 in) in 2007; 124.0 mm (4.9 in) in 1978.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Ida Grove 5NW standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Ida Grove 5NW 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.