Record envelope, standing records and threshold days for Columbus Junction (USC00131731), Iowa, United States, with 127 years of record.
Key Facts for Columbus Junction
Columbus Junction (USC00131731) is a weather station in Iowa, United States at 41.28 latitude and -91.36 longitude, 180 m (590 ft) above sea level.
The station reports from 1900 to 2026, 127 years of record.
1,464 records set at Columbus Junction still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Columbus Junction set a daily record high maximum temperature of 30.6 C (87.1 F) on 15 April 2026.
About the Station
Location: Iowa, United States, 41.28 latitude, -91.36 longitude.
Elevation: 180 m (590 ft).
Period of record: 1900 to 2026, 127 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
6 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 Columbus Junction. The lines show the 2026 daily maximum and minimum. 6 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Columbus Junction, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
20.0 C (68.0 F)
-32.2 C (-26.0 F)
n/a
n/a
Feb
25.0 C (77.0 F)
-36.7 C (-34.1 F)
21.1 C (70.0 F)
-16.1 C (3.0 F)
Mar
31.7 C (89.1 F)
-27.2 C (-17.0 F)
31.7 C (89.1 F)
-16.1 C (3.0 F)
Apr
33.9 C (93.0 F)
-13.3 C (8.1 F)
30.6 C (87.1 F)
-1.1 C (30.0 F)
May
39.4 C (102.9 F)
-3.9 C (25.0 F)
31.7 C (89.1 F)
1.7 C (35.1 F)
Jun
41.1 C (106.0 F)
-1.1 C (30.0 F)
30.6 C (87.1 F)
11.1 C (52.0 F)
Jul
43.3 C (109.9 F)
6.1 C (43.0 F)
n/a
n/a
Aug
41.1 C (106.0 F)
3.9 C (39.0 F)
n/a
n/a
Sep
38.3 C (100.9 F)
-5.0 C (23.0 F)
n/a
n/a
Oct
35.6 C (96.1 F)
-14.4 C (6.1 F)
n/a
n/a
Nov
27.2 C (81.0 F)
-22.2 C (-8.0 F)
n/a
n/a
Dec
23.3 C (73.9 F)
-31.1 C (-24.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Columbus Junction still stand. 1936 holds the most, with 45.
Standing records at Columbus Junction by the year they were set
Year set
Standing records
1901
32
1902
28
1903
14
1904
12
1905
15
1906
6
1907
9
1908
5
1909
20
1910
14
1911
14
1912
11
1913
20
1914
12
1915
13
1916
7
1917
12
1918
20
1919
6
1920
12
1921
22
1922
9
1923
7
1924
20
1925
21
1926
10
1927
16
1928
16
1929
15
1930
28
1931
17
1932
11
1933
12
1934
25
1935
11
1936
45
1937
15
1938
9
1939
10
1940
16
1941
12
1942
20
1943
12
1944
10
1945
15
1946
13
1947
13
1948
8
1949
6
1950
23
1951
16
1952
14
1953
20
1954
9
1955
17
1956
13
1957
5
1958
9
1959
11
1960
20
1961
6
1962
22
1963
25
1964
15
1965
12
1966
12
1967
14
1968
9
1969
4
1970
10
1971
8
1972
12
1973
9
1974
15
1975
8
1976
12
1977
17
1978
5
1979
7
1980
7
1981
9
1982
15
1983
20
1984
10
1985
12
1986
6
1987
14
1988
20
1989
15
1990
14
1991
23
1992
17
1993
9
1994
5
1995
3
1996
10
1997
12
1998
13
1999
9
2000
16
2001
4
2002
5
2003
3
2004
3
2005
6
2006
12
2007
7
2008
5
2020
9
2021
10
2022
8
2023
5
2024
12
2025
3
2026
8
All-Time Record Progression
10 new records
10 all-time records were set at Columbus Junction between 3 July 1931 and 3 February 1996. Each dot is a new record.
When Columbus Junction set new all-time records
Date
Kind
Detail
1931-07-03
Record daily precipitation
Record daily precipitation 147.3 mm (5.8 in)
1936-07-14
Record high maximum temperature
Record high maximum temperature 43.3 C (109.9 F)
1936-07-27
Record high minimum temperature
Record high minimum temperature 28.3 C (82.9 F)
1947-08-06
Record high minimum temperature
Record high minimum temperature 29.4 C (84.9 F)
1947-08-20
Record high minimum temperature
Record high minimum temperature 31.1 C (88.0 F)
1971-01-03
Record daily snowfall
Record daily snowfall 38.1 cm (15.0 in)
1979-01-13
Record snow depth
Record snow depth 66.0 cm (26.0 in)
1979-01-15
Record snow depth
Record snow depth 68.6 cm (27.0 in)
1983-12-24
Record low maximum temperature
Record low maximum temperature -24.4 C (-11.9 F)
1996-02-03
Record low maximum temperature
Record low maximum temperature -25.0 C (-13.0 F)
Wettest Day of Each Month
Jul: 147.3 mm (5.8 in)
The wettest day on record for each calendar month at Columbus Junction. The most was 147.3 mm (5.8 in) on 3 July 1931.
Record daily precipitation for each month at Columbus Junction
Month
Record daily precipitation (mm)
Date
Jan
54.6 mm (2.1 in)
12 January 1960
Feb
59.7 mm (2.4 in)
21 February 1997
Mar
87.1 mm (3.4 in)
4 March 1976
Apr
95.3 mm (3.8 in)
24 April 1955
May
99.1 mm (3.9 in)
10 May 1996
Jun
118.1 mm (4.6 in)
2 June 1995
Jul
147.3 mm (5.8 in)
3 July 1931
Aug
143.3 mm (5.6 in)
30 August 1965
Sep
141.2 mm (5.6 in)
13 September 1961
Oct
82.6 mm (3.3 in)
6 October 1959
Nov
76.2 mm (3.0 in)
5 November 2022
Dec
63.5 mm (2.5 in)
15 December 1971
Period of Record Coverage
1900 to 2026
Complete yearUnder 90 percent of days
116 years of record at Columbus Junction, 1900 to 2026. 10 years have data for under 90 percent of days and are left out of rankings: 1900, 1911, 1912, 1924, 1925, 2004, 2008, 2020 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 100 complete years at Columbus Junction, 1901 to 2024. Blue stripes are years cooler than the station's own mean of 10.4 C (50.7 F); red stripes are warmer. The coolest year was 1951, at 8.7 C (47.7 F), and the warmest was 1921, at 12.6 C (54.7 F). The strongest colour marks a difference of 2.3 C (4.1 F).
Annual mean temperature at Columbus Junction as warming stripes, 1901 to 2024
Year
Annual mean temperature
Difference from the station mean
1901
10.6 C
+0.25 C
1903
9.6 C
-0.81 C
1904
8.9 C
-1.45 C
1906
10.6 C
+0.18 C
1907
10.2 C
-0.21 C
1908
10.9 C
+0.50 C
1909
10.2 C
-0.22 C
1910
10.4 C
0.00 C
1913
11.4 C
+1.06 C
1914
11.1 C
+0.68 C
1915
10.3 C
-0.05 C
1916
10.1 C
-0.28 C
1917
8.8 C
-1.61 C
1918
10.7 C
+0.37 C
1919
10.8 C
+0.39 C
1920
10.5 C
+0.14 C
1921
12.6 C
+2.24 C
1922
11.8 C
+1.38 C
1923
10.8 C
+0.41 C
1927
10.3 C
-0.10 C
1929
8.7 C
-1.64 C
1930
10.5 C
+0.08 C
1931
12.1 C
+1.69 C
1932
9.9 C
-0.49 C
1933
11.1 C
+0.71 C
1934
11.3 C
+0.91 C
1935
9.6 C
-0.81 C
1936
10.1 C
-0.24 C
1937
9.7 C
-0.69 C
1938
11.7 C
+1.32 C
1939
11.2 C
+0.84 C
1940
9.5 C
-0.91 C
1941
11.2 C
+0.85 C
1942
10.3 C
-0.04 C
1943
9.5 C
-0.83 C
1944
10.4 C
+0.03 C
1945
9.5 C
-0.85 C
1946
11.2 C
+0.84 C
1947
10.3 C
-0.06 C
1948
10.1 C
-0.28 C
1949
10.8 C
+0.43 C
1950
9.0 C
-1.35 C
1951
8.7 C
-1.67 C
1952
10.1 C
-0.30 C
1953
11.0 C
+0.60 C
1955
9.9 C
-0.52 C
1956
10.8 C
+0.42 C
1957
10.2 C
-0.17 C
1958
9.5 C
-0.89 C
1959
10.2 C
-0.20 C
1960
9.8 C
-0.59 C
1961
10.2 C
-0.13 C
1962
10.2 C
-0.19 C
1963
10.4 C
+0.03 C
1964
11.2 C
+0.86 C
1965
10.2 C
-0.19 C
1966
9.8 C
-0.53 C
1967
9.8 C
-0.55 C
1968
10.4 C
+0.01 C
1969
9.9 C
-0.50 C
1970
10.2 C
-0.14 C
1971
10.6 C
+0.23 C
1972
9.6 C
-0.77 C
1973
11.2 C
+0.87 C
1974
10.3 C
-0.06 C
1975
10.8 C
+0.40 C
1976
10.0 C
-0.40 C
1977
10.6 C
+0.24 C
1978
9.2 C
-1.19 C
1979
9.3 C
-1.06 C
1980
10.5 C
+0.16 C
1981
11.0 C
+0.60 C
1982
9.8 C
-0.61 C
1983
10.8 C
+0.44 C
1984
10.6 C
+0.23 C
1985
9.6 C
-0.82 C
1986
10.9 C
+0.52 C
1987
12.5 C
+2.08 C
1988
11.1 C
+0.68 C
1989
9.4 C
-0.95 C
1990
11.1 C
+0.77 C
1991
10.9 C
+0.55 C
1992
10.1 C
-0.28 C
1993
9.2 C
-1.15 C
1994
10.1 C
-0.27 C
1995
9.7 C
-0.68 C
1996
8.8 C
-1.55 C
1997
9.7 C
-0.71 C
1998
11.7 C
+1.32 C
1999
11.0 C
+0.63 C
2000
10.5 C
+0.10 C
2001
10.8 C
+0.43 C
2002
10.9 C
+0.52 C
2003
10.0 C
-0.37 C
2005
10.6 C
+0.24 C
2006
11.1 C
+0.68 C
2021
10.7 C
+0.30 C
2022
9.4 C
-0.97 C
2023
11.3 C
+0.89 C
2024
11.8 C
+1.45 C
The fitted trend in annual mean temperature here over 1901 to 2024 is 0.01 C (-0.04 to 0.06) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.01 F (-0.08 to 0.10) per decade. The slope is a straight line fitted to 100 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Columbus Junction
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.01 C (-0.04 to 0.06) per decade
0.01 F (-0.08 to 0.10) per decade
1901 to 2024
100
Not clearly different from zero
Mean daily maximum
0.00 C (-0.06 to 0.05) per decade
-0.01 F (-0.11 to 0.09) per decade
1901 to 2024
100
Not clearly different from zero
Mean daily minimum
0.02 C (-0.04 to 0.07) per decade
0.03 F (-0.07 to 0.13) per decade
1901 to 2024
100
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
1900 to 2026
Yearly extremes at Columbus Junction: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
43.3 C (109.9 F)
1936
35.6 C (96.1 F)
116
Coldest night (TNn)
-36.7 C (-34.1 F)
1905
-25.6 C (-14.1 F)
116
Wettest day (Rx1day)
147.3 mm (5.8 in)
1931
63.3 mm (2.5 in)
116
Wettest five days (Rx5day)
224.6 mm (8.8 in)
1965
100.2 mm (3.9 in)
116
Longest dry spell (CDD)
48 days
1917
23 days
116
Hottest day (TXx)
The hottest day of the year at Columbus Junction, 1900 to 2026. The record is 43.3 C (109.9 F) in 1936, marked on the chart; the median year is 35.6 C (96.1 F).
Hottest day (TXx) at Columbus Junction by year
Year
Hottest day (TXx)
1900
30.6 C (87.1 F)
1901
42.8 C (109.0 F)
1902
35.0 C (95.0 F)
1903
35.6 C (96.1 F)
1904
33.3 C (91.9 F)
1905
34.4 C (93.9 F)
1906
34.4 C (93.9 F)
1907
35.0 C (95.0 F)
1908
34.4 C (93.9 F)
1909
35.6 C (96.1 F)
1910
35.6 C (96.1 F)
1911
41.1 C (106.0 F)
1912
36.7 C (98.1 F)
1913
39.4 C (102.9 F)
1914
38.3 C (100.9 F)
1915
32.8 C (91.0 F)
1916
37.2 C (99.0 F)
1917
37.2 C (99.0 F)
1918
37.2 C (99.0 F)
1919
35.6 C (96.1 F)
1920
35.6 C (96.1 F)
1921
36.7 C (98.1 F)
1922
37.2 C (99.0 F)
1923
36.1 C (97.0 F)
1924
37.8 C (100.0 F)
1925
36.7 C (98.1 F)
1926
33.3 C (91.9 F)
1927
36.1 C (97.0 F)
1928
32.2 C (90.0 F)
1929
35.6 C (96.1 F)
1930
41.1 C (106.0 F)
1931
37.8 C (100.0 F)
1932
34.4 C (93.9 F)
1933
36.7 C (98.1 F)
1934
40.6 C (105.1 F)
1935
34.4 C (93.9 F)
1936
43.3 C (109.9 F)
1937
37.2 C (99.0 F)
1938
37.2 C (99.0 F)
1939
36.7 C (98.1 F)
1940
41.7 C (107.1 F)
1941
39.4 C (102.9 F)
1942
37.2 C (99.0 F)
1943
35.6 C (96.1 F)
1944
35.0 C (95.0 F)
1945
38.3 C (100.9 F)
1946
34.4 C (93.9 F)
1947
37.8 C (100.0 F)
1948
35.6 C (96.1 F)
1949
36.1 C (97.0 F)
1950
32.8 C (91.0 F)
1951
36.1 C (97.0 F)
1952
35.0 C (95.0 F)
1953
38.3 C (100.9 F)
1954
37.2 C (99.0 F)
1955
39.4 C (102.9 F)
1956
38.3 C (100.9 F)
1957
36.7 C (98.1 F)
1958
34.4 C (93.9 F)
1959
36.7 C (98.1 F)
1960
38.3 C (100.9 F)
1961
35.6 C (96.1 F)
1962
35.6 C (96.1 F)
1963
38.9 C (102.0 F)
1964
37.8 C (100.0 F)
1965
35.6 C (96.1 F)
1966
37.2 C (99.0 F)
1967
34.4 C (93.9 F)
1968
35.6 C (96.1 F)
1969
34.4 C (93.9 F)
1970
36.1 C (97.0 F)
1971
35.6 C (96.1 F)
1972
35.6 C (96.1 F)
1973
35.0 C (95.0 F)
1974
36.1 C (97.0 F)
1975
38.3 C (100.9 F)
1976
35.6 C (96.1 F)
1977
37.2 C (99.0 F)
1978
35.0 C (95.0 F)
1979
35.0 C (95.0 F)
1980
37.8 C (100.0 F)
1981
35.0 C (95.0 F)
1982
35.0 C (95.0 F)
1983
40.6 C (105.1 F)
1984
36.7 C (98.1 F)
1985
37.2 C (99.0 F)
1986
35.0 C (95.0 F)
1987
41.1 C (106.0 F)
1988
41.1 C (106.0 F)
1989
36.7 C (98.1 F)
1990
35.6 C (96.1 F)
1991
37.8 C (100.0 F)
1992
32.8 C (91.0 F)
1993
33.3 C (91.9 F)
1994
33.3 C (91.9 F)
1995
37.8 C (100.0 F)
1996
34.4 C (93.9 F)
1997
35.0 C (95.0 F)
1998
35.0 C (95.0 F)
1999
36.7 C (98.1 F)
2000
37.2 C (99.0 F)
2001
35.6 C (96.1 F)
2002
35.6 C (96.1 F)
2003
36.7 C (98.1 F)
2004
32.2 C (90.0 F)
2005
38.9 C (102.0 F)
2006
36.7 C (98.1 F)
2007
33.9 C (93.0 F)
2008
32.2 C (90.0 F)
2020
33.3 C (91.9 F)
2021
33.9 C (93.0 F)
2022
35.6 C (96.1 F)
2023
35.6 C (96.1 F)
2024
35.0 C (95.0 F)
2025
33.9 C (93.0 F)
2026
31.7 C (89.1 F)
Coldest night (TNn)
The coldest night of the year at Columbus Junction, 1900 to 2026. The record is -36.7 C (-34.1 F) in 1905, marked on the chart; the median year is -25.6 C (-14.1 F).
Coldest night (TNn) at Columbus Junction by year
Year
Coldest night (TNn)
1900
-17.2 C (1.0 F)
1901
-25.6 C (-14.1 F)
1902
-26.1 C (-15.0 F)
1903
-26.1 C (-15.0 F)
1904
-25.6 C (-14.1 F)
1905
-36.7 C (-34.1 F)
1906
-20.6 C (-5.1 F)
1907
-22.2 C (-8.0 F)
1908
-20.6 C (-5.1 F)
1909
-25.6 C (-14.1 F)
1910
-26.7 C (-16.1 F)
1911
-20.0 C (-4.0 F)
1912
-31.1 C (-24.0 F)
1913
-23.3 C (-9.9 F)
1914
-27.2 C (-17.0 F)
1915
-27.8 C (-18.0 F)
1916
-29.4 C (-20.9 F)
1917
-27.8 C (-18.0 F)
1918
-29.4 C (-20.9 F)
1919
-27.8 C (-18.0 F)
1920
-23.3 C (-9.9 F)
1921
-22.8 C (-9.0 F)
1922
-21.7 C (-7.1 F)
1923
-23.9 C (-11.0 F)
1924
-30.6 C (-23.1 F)
1925
-23.9 C (-11.0 F)
1926
-24.4 C (-11.9 F)
1927
-28.9 C (-20.0 F)
1928
-23.3 C (-9.9 F)
1929
-28.3 C (-18.9 F)
1930
-32.2 C (-26.0 F)
1931
-17.8 C (0.0 F)
1932
-27.2 C (-17.0 F)
1933
-30.0 C (-22.0 F)
1934
-26.1 C (-15.0 F)
1935
-25.0 C (-13.0 F)
1936
-30.0 C (-22.0 F)
1937
-21.1 C (-6.0 F)
1938
-21.1 C (-6.0 F)
1939
-20.6 C (-5.1 F)
1940
-28.9 C (-20.0 F)
1941
-21.1 C (-6.0 F)
1942
-28.9 C (-20.0 F)
1943
-27.2 C (-17.0 F)
1944
-24.4 C (-11.9 F)
1945
-25.0 C (-13.0 F)
1946
-22.8 C (-9.0 F)
1947
-29.4 C (-20.9 F)
1948
-21.7 C (-7.1 F)
1949
-26.7 C (-16.1 F)
1950
-26.1 C (-15.0 F)
1951
-28.9 C (-20.0 F)
1952
-21.1 C (-6.0 F)
1953
-25.0 C (-13.0 F)
1954
-23.9 C (-11.0 F)
1955
-30.0 C (-22.0 F)
1956
-26.1 C (-15.0 F)
1957
-31.7 C (-25.1 F)
1958
-27.2 C (-17.0 F)
1959
-26.7 C (-16.1 F)
1960
-26.7 C (-16.1 F)
1961
-24.4 C (-11.9 F)
1962
-28.9 C (-20.0 F)
1963
-31.7 C (-25.1 F)
1964
-20.6 C (-5.1 F)
1965
-25.0 C (-13.0 F)
1966
-29.4 C (-20.9 F)
1967
-27.8 C (-18.0 F)
1968
-28.3 C (-18.9 F)
1969
-23.9 C (-11.0 F)
1970
-30.0 C (-22.0 F)
1971
-28.9 C (-20.0 F)
1972
-27.8 C (-18.0 F)
1973
-23.3 C (-9.9 F)
1974
-31.7 C (-25.1 F)
1975
-24.4 C (-11.9 F)
1976
-25.6 C (-14.1 F)
1977
-29.4 C (-20.9 F)
1978
-23.9 C (-11.0 F)
1979
-31.7 C (-25.1 F)
1980
-22.8 C (-9.0 F)
1981
-25.6 C (-14.1 F)
1982
-31.1 C (-24.0 F)
1983
-29.4 C (-20.9 F)
1984
-27.2 C (-17.0 F)
1985
-30.0 C (-22.0 F)
1986
-24.4 C (-11.9 F)
1987
-20.6 C (-5.1 F)
1988
-26.7 C (-16.1 F)
1989
-31.1 C (-24.0 F)
1990
-22.2 C (-8.0 F)
1991
-22.2 C (-8.0 F)
1992
-21.7 C (-7.1 F)
1993
-23.3 C (-9.9 F)
1994
-30.0 C (-22.0 F)
1995
-23.3 C (-9.9 F)
1996
-34.4 C (-29.9 F)
1997
-26.7 C (-16.1 F)
1998
-22.8 C (-9.0 F)
1999
-29.4 C (-20.9 F)
2000
-26.7 C (-16.1 F)
2001
-22.8 C (-9.0 F)
2002
-22.2 C (-8.0 F)
2003
-22.2 C (-8.0 F)
2004
-23.3 C (-9.9 F)
2005
-22.8 C (-9.0 F)
2006
-22.2 C (-8.0 F)
2007
-24.4 C (-11.9 F)
2008
-25.6 C (-14.1 F)
2020
-22.8 C (-9.0 F)
2021
-26.7 C (-16.1 F)
2022
-23.3 C (-9.9 F)
2023
-19.4 C (-2.9 F)
2024
-28.3 C (-18.9 F)
2025
-24.4 C (-11.9 F)
2026
-16.1 C (3.0 F)
Wettest day (Rx1day)
The wettest day of the year at Columbus Junction, 1900 to 2026. The record is 147.3 mm (5.8 in) in 1931, marked on the chart; the median year is 63.3 mm (2.5 in).
Wettest day (Rx1day) at Columbus Junction by year
Year
Wettest day (Rx1day)
1900
24.4 mm (1.0 in)
1901
29.5 mm (1.2 in)
1902
101.6 mm (4.0 in)
1903
77.5 mm (3.1 in)
1904
49.8 mm (2.0 in)
1905
69.9 mm (2.8 in)
1906
78.0 mm (3.1 in)
1907
71.1 mm (2.8 in)
1908
74.9 mm (2.9 in)
1909
50.8 mm (2.0 in)
1910
63.0 mm (2.5 in)
1911
59.7 mm (2.4 in)
1912
61.0 mm (2.4 in)
1913
54.6 mm (2.1 in)
1914
38.1 mm (1.5 in)
1915
108.0 mm (4.3 in)
1916
70.6 mm (2.8 in)
1917
44.5 mm (1.8 in)
1918
53.3 mm (2.1 in)
1919
50.3 mm (2.0 in)
1920
37.1 mm (1.5 in)
1921
62.2 mm (2.4 in)
1922
47.5 mm (1.9 in)
1923
58.4 mm (2.3 in)
1924
137.2 mm (5.4 in)
1925
73.2 mm (2.9 in)
1926
82.8 mm (3.3 in)
1927
52.8 mm (2.1 in)
1928
94.0 mm (3.7 in)
1929
66.8 mm (2.6 in)
1930
76.2 mm (3.0 in)
1931
147.3 mm (5.8 in)
1932
47.8 mm (1.9 in)
1933
68.6 mm (2.7 in)
1934
54.1 mm (2.1 in)
1935
57.2 mm (2.3 in)
1936
52.1 mm (2.1 in)
1937
31.8 mm (1.3 in)
1938
92.7 mm (3.6 in)
1939
71.4 mm (2.8 in)
1940
48.8 mm (1.9 in)
1941
49.8 mm (2.0 in)
1942
38.1 mm (1.5 in)
1943
130.8 mm (5.1 in)
1944
52.1 mm (2.1 in)
1945
44.5 mm (1.8 in)
1946
67.8 mm (2.7 in)
1947
118.1 mm (4.6 in)
1948
72.1 mm (2.8 in)
1949
54.1 mm (2.1 in)
1950
76.2 mm (3.0 in)
1951
96.5 mm (3.8 in)
1952
55.9 mm (2.2 in)
1953
81.8 mm (3.2 in)
1954
58.2 mm (2.3 in)
1955
95.3 mm (3.8 in)
1956
52.8 mm (2.1 in)
1957
53.1 mm (2.1 in)
1958
67.8 mm (2.7 in)
1959
82.6 mm (3.3 in)
1960
76.2 mm (3.0 in)
1961
141.2 mm (5.6 in)
1962
39.9 mm (1.6 in)
1963
74.4 mm (2.9 in)
1964
59.7 mm (2.4 in)
1965
143.3 mm (5.6 in)
1966
72.4 mm (2.9 in)
1967
58.9 mm (2.3 in)
1968
54.6 mm (2.1 in)
1969
69.3 mm (2.7 in)
1970
69.3 mm (2.7 in)
1971
63.5 mm (2.5 in)
1972
74.7 mm (2.9 in)
1973
95.3 mm (3.8 in)
1974
54.9 mm (2.2 in)
1975
54.6 mm (2.1 in)
1976
87.1 mm (3.4 in)
1977
124.5 mm (4.9 in)
1978
46.2 mm (1.8 in)
1979
42.9 mm (1.7 in)
1980
47.0 mm (1.9 in)
1981
81.8 mm (3.2 in)
1982
76.7 mm (3.0 in)
1983
82.0 mm (3.2 in)
1984
44.7 mm (1.8 in)
1985
57.7 mm (2.3 in)
1986
83.6 mm (3.3 in)
1987
54.4 mm (2.1 in)
1988
57.2 mm (2.3 in)
1989
80.0 mm (3.1 in)
1990
60.5 mm (2.4 in)
1991
47.5 mm (1.9 in)
1992
68.3 mm (2.7 in)
1993
85.3 mm (3.4 in)
1994
36.6 mm (1.4 in)
1995
118.1 mm (4.6 in)
1996
99.1 mm (3.9 in)
1997
63.0 mm (2.5 in)
1998
114.6 mm (4.5 in)
1999
59.7 mm (2.4 in)
2000
55.9 mm (2.2 in)
2001
55.9 mm (2.2 in)
2002
69.3 mm (2.7 in)
2003
57.2 mm (2.3 in)
2004
76.2 mm (3.0 in)
2005
51.1 mm (2.0 in)
2006
50.8 mm (2.0 in)
2007
88.9 mm (3.5 in)
2008
127.0 mm (5.0 in)
2020
66.0 mm (2.6 in)
2021
112.3 mm (4.4 in)
2022
76.2 mm (3.0 in)
2023
50.8 mm (2.0 in)
2024
59.7 mm (2.4 in)
2025
94.0 mm (3.7 in)
2026
33.0 mm (1.3 in)
Wettest five days (Rx5day)
The wettest five days of the year at Columbus Junction, 1900 to 2026. The record is 224.6 mm (8.8 in) in 1965, marked on the chart; the median year is 100.2 mm (3.9 in).
Wettest five days (Rx5day) at Columbus Junction by year
Year
Wettest five days (Rx5day)
1900
37.3 mm (1.5 in)
1901
46.3 mm (1.8 in)
1902
159.6 mm (6.3 in)
1903
126.5 mm (5.0 in)
1904
67.1 mm (2.6 in)
1905
83.9 mm (3.3 in)
1906
83.6 mm (3.3 in)
1907
133.9 mm (5.3 in)
1908
101.6 mm (4.0 in)
1909
88.9 mm (3.5 in)
1910
94.9 mm (3.7 in)
1911
75.0 mm (3.0 in)
1912
84.1 mm (3.3 in)
1913
87.9 mm (3.5 in)
1914
53.6 mm (2.1 in)
1915
143.1 mm (5.6 in)
1916
107.2 mm (4.2 in)
1917
105.9 mm (4.2 in)
1918
110.5 mm (4.4 in)
1919
88.1 mm (3.5 in)
1920
63.7 mm (2.5 in)
1921
96.6 mm (3.8 in)
1922
85.4 mm (3.4 in)
1923
108.4 mm (4.3 in)
1924
172.8 mm (6.8 in)
1925
110.8 mm (4.4 in)
1926
160.3 mm (6.3 in)
1927
88.2 mm (3.5 in)
1928
103.9 mm (4.1 in)
1929
104.1 mm (4.1 in)
1930
175.3 mm (6.9 in)
1931
148.6 mm (5.9 in)
1932
115.9 mm (4.6 in)
1933
81.5 mm (3.2 in)
1934
61.2 mm (2.4 in)
1935
90.5 mm (3.6 in)
1936
93.7 mm (3.7 in)
1937
50.5 mm (2.0 in)
1938
114.8 mm (4.5 in)
1939
121.0 mm (4.8 in)
1940
61.5 mm (2.4 in)
1941
82.0 mm (3.2 in)
1942
64.0 mm (2.5 in)
1943
138.7 mm (5.5 in)
1944
89.7 mm (3.5 in)
1945
83.3 mm (3.3 in)
1946
132.1 mm (5.2 in)
1947
118.1 mm (4.6 in)
1948
73.9 mm (2.9 in)
1949
66.0 mm (2.6 in)
1950
116.1 mm (4.6 in)
1951
115.3 mm (4.5 in)
1952
99.4 mm (3.9 in)
1953
96.8 mm (3.8 in)
1954
110.8 mm (4.4 in)
1955
114.1 mm (4.5 in)
1956
69.9 mm (2.8 in)
1957
60.2 mm (2.4 in)
1958
94.4 mm (3.7 in)
1959
154.3 mm (6.1 in)
1960
120.4 mm (4.7 in)
1961
155.5 mm (6.1 in)
1962
97.1 mm (3.8 in)
1963
89.5 mm (3.5 in)
1964
101.0 mm (4.0 in)
1965
224.6 mm (8.8 in)
1966
117.8 mm (4.6 in)
1967
91.2 mm (3.6 in)
1968
101.4 mm (4.0 in)
1969
102.5 mm (4.0 in)
1970
111.8 mm (4.4 in)
1971
75.0 mm (3.0 in)
1972
83.6 mm (3.3 in)
1973
151.7 mm (6.0 in)
1974
98.0 mm (3.9 in)
1975
72.6 mm (2.9 in)
1976
110.2 mm (4.3 in)
1977
194.1 mm (7.6 in)
1978
95.2 mm (3.7 in)
1979
62.3 mm (2.5 in)
1980
118.1 mm (4.6 in)
1981
152.1 mm (6.0 in)
1982
123.2 mm (4.9 in)
1983
123.1 mm (4.8 in)
1984
126.7 mm (5.0 in)
1985
108.8 mm (4.3 in)
1986
125.0 mm (4.9 in)
1987
111.2 mm (4.4 in)
1988
92.0 mm (3.6 in)
1989
144.8 mm (5.7 in)
1990
141.9 mm (5.6 in)
1991
60.5 mm (2.4 in)
1992
90.7 mm (3.6 in)
1993
117.8 mm (4.6 in)
1994
45.0 mm (1.8 in)
1995
126.3 mm (5.0 in)
1996
144.7 mm (5.7 in)
1997
94.0 mm (3.7 in)
1998
135.5 mm (5.3 in)
1999
84.7 mm (3.3 in)
2000
84.0 mm (3.3 in)
2001
111.3 mm (4.4 in)
2002
84.1 mm (3.3 in)
2003
74.9 mm (2.9 in)
2004
85.1 mm (3.4 in)
2005
61.0 mm (2.4 in)
2006
56.8 mm (2.2 in)
2007
147.1 mm (5.8 in)
2008
174.0 mm (6.9 in)
2020
128.5 mm (5.1 in)
2021
138.0 mm (5.4 in)
2022
76.2 mm (3.0 in)
2023
66.0 mm (2.6 in)
2024
90.2 mm (3.6 in)
2025
121.9 mm (4.8 in)
2026
50.8 mm (2.0 in)
Longest dry spell (CDD)
The longest dry spell of the year at Columbus Junction, 1900 to 2026. The record is 48 days in 1917, marked on the chart; the median year is 23 days.
Longest dry spell (CDD) at Columbus Junction by year
Year
Longest dry spell (CDD)
1900
25 days
1901
20 days
1902
24 days
1903
20 days
1904
30 days
1905
19 days
1906
15 days
1907
22 days
1908
25 days
1909
29 days
1910
33 days
1911
13 days
1912
29 days
1913
21 days
1914
28 days
1915
23 days
1916
23 days
1917
48 days
1918
19 days
1919
26 days
1920
26 days
1921
15 days
1922
19 days
1923
28 days
1924
22 days
1925
20 days
1926
16 days
1927
20 days
1928
18 days
1929
17 days
1930
21 days
1931
26 days
1932
23 days
1933
27 days
1934
35 days
1935
16 days
1936
22 days
1937
19 days
1938
24 days
1939
25 days
1940
20 days
1941
18 days
1942
28 days
1943
27 days
1944
26 days
1945
24 days
1946
17 days
1947
27 days
1948
32 days
1949
23 days
1950
29 days
1951
30 days
1952
46 days
1953
24 days
1954
31 days
1955
32 days
1956
37 days
1957
22 days
1958
26 days
1959
21 days
1960
16 days
1961
14 days
1962
19 days
1963
20 days
1964
21 days
1965
15 days
1966
25 days
1967
23 days
1968
19 days
1969
32 days
1970
16 days
1971
31 days
1972
16 days
1973
19 days
1974
24 days
1975
18 days
1976
27 days
1977
25 days
1978
21 days
1979
30 days
1980
24 days
1981
31 days
1982
17 days
1983
20 days
1984
16 days
1985
18 days
1986
22 days
1987
29 days
1988
37 days
1989
40 days
1990
23 days
1991
32 days
1992
15 days
1993
24 days
1994
23 days
1995
28 days
1996
18 days
1997
21 days
1998
23 days
1999
37 days
2000
19 days
2001
19 days
2002
29 days
2003
19 days
2004
24 days
2005
24 days
2006
16 days
2007
33 days
2008
15 days
2020
24 days
2021
29 days
2022
23 days
2023
27 days
2024
22 days
2025
26 days
2026
33 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
100 years with a frost
Across 100 years with a frost, the median last spring frost at Columbus Junction falls on 25 April and the median first autumn frost on 10 October, which leaves a median of 169 days between them.
In 1980 to 2024 the median growing season was 173 days. The two periods have the same number of growing days.
Fitted over all years, the growing season changes by +0.2 days per decade at this station.
Frost dates and growing season at Columbus Junction
Measure
Median, all years
Earliest period (1901 to 1938)
Recent period (1980 to 2024)
Recent against earliest
Fitted trend
Last spring frost
25 April
25 April
22 April
3 days earlier
-0.4 days per decade
First autumn frost
10 October
13 October
11 October
2 days earlier
-0.2 days per decade
Growing days
169 days
173 days
173 days
no change
+0.2 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
99 years, 1901 to 2024
A day with at least 64.1 mm (2.5 in) of rain is expected about once in 2 years. A day with at least 159.8 mm (6.3 in) of rain is expected about once in 100 years.
Rainfall return levels at Columbus Junction: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
64.1 mm (2.5 in)
5 years
86.0 mm (3.4 in)
10 years
101.8 mm (4.0 in)
25 years
123.6 mm (4.9 in)
50 years
141.1 mm (5.6 in)
100 years
159.8 mm (6.3 in)
Longer than the 99 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, 99 years of values from 1901 to 2024.
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: 147.3 mm (5.8 in) in 1931; 143.3 mm (5.6 in) in 1965; 141.2 mm (5.6 in) in 1961.
Station Changes
2 suspected
2 changes were suspected in the annual mean temperature of Columbus Junction, at 1959 and 1989. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1959 ran 0.4 C (0.7 F) higher than in the years before (possible change).
Relative to 5 neighbouring stations, the station's annual mean temperature from 1989 ran 0.4 C (0.7 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at Columbus Junction, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1959
+0.4
+0.7
possible
5
1989
-0.4
-0.7
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 Columbus Junction standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Columbus Junction 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.