Record envelope, standing records and threshold days for Hankinson (USC00323908), North Dakota, United States, with 65 years of record.
Key Facts for Hankinson
Hankinson (USC00323908) is a weather station in North Dakota, United States at 46.07 latitude and -96.90 longitude, 326 m (1,070 ft) above sea level.
The station reports from 1929 to 1993, 65 years of record.
1,464 records set at Hankinson still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Hankinson set a daily record low maximum temperature of 7.2 C (45.0 F) on 14 September 1993.
About the Station
Location: North Dakota, United States, 46.07 latitude, -96.90 longitude.
Elevation: 326 m (1,070 ft).
Period of record: 1929 to 1993, 65 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 Hankinson. 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 Hankinson, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
15.6 C (60.1 F)
-38.9 C (-38.0 F)
n/a
n/a
Feb
18.9 C (66.0 F)
-36.7 C (-34.1 F)
n/a
n/a
Mar
28.3 C (82.9 F)
-33.3 C (-27.9 F)
n/a
n/a
Apr
36.7 C (98.1 F)
-17.8 C (0.0 F)
n/a
n/a
May
40.0 C (104.0 F)
-8.9 C (16.0 F)
n/a
n/a
Jun
40.6 C (105.1 F)
-2.2 C (28.0 F)
n/a
n/a
Jul
44.4 C (111.9 F)
5.0 C (41.0 F)
n/a
n/a
Aug
40.6 C (105.1 F)
0.0 C (32.0 F)
n/a
n/a
Sep
40.0 C (104.0 F)
-6.1 C (21.0 F)
n/a
n/a
Oct
34.4 C (93.9 F)
-15.6 C (3.9 F)
n/a
n/a
Nov
25.6 C (78.1 F)
-28.9 C (-20.0 F)
n/a
n/a
Dec
20.0 C (68.0 F)
-35.6 C (-32.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Hankinson still stand. 1931 holds the most, with 67.
Standing records at Hankinson by the year they were set
Year set
Standing records
1929
21
1930
22
1931
67
1932
25
1933
29
1934
49
1935
31
1936
54
1937
21
1938
21
1939
42
1940
19
1941
21
1942
22
1943
21
1944
13
1945
19
1946
23
1947
34
1948
25
1949
18
1950
36
1951
28
1952
21
1953
25
1954
15
1955
15
1956
21
1957
8
1958
18
1959
17
1960
12
1961
16
1962
26
1963
19
1964
25
1965
22
1966
23
1967
13
1968
29
1969
20
1970
16
1971
18
1972
26
1973
12
1974
18
1975
21
1976
20
1977
26
1978
14
1979
22
1980
12
1981
10
1982
12
1983
24
1984
20
1985
22
1986
17
1987
20
1988
19
1989
18
1990
25
1991
31
1992
26
1993
9
All-Time Record Progression
5 new records
5 all-time records were set at Hankinson between 19 July 1962 and 7 January 1989. Each dot is a new record.
When Hankinson set new all-time records
Date
Kind
Detail
1962-07-19
Record daily precipitation
Record daily precipitation 76.2 mm (3.0 in)
1968-09-22
Record daily precipitation
Record daily precipitation 104.1 mm (4.1 in)
1982-01-24
Record low minimum temperature
Record low minimum temperature -38.9 C (-38.0 F)
1985-03-04
Record daily snowfall
Record daily snowfall 33.0 cm (13.0 in)
1989-01-07
Record daily snowfall
Record daily snowfall 38.1 cm (15.0 in)
Wettest Day of Each Month
Sep: 104.1 mm (4.1 in)
The wettest day on record for each calendar month at Hankinson. The most was 104.1 mm (4.1 in) on 22 September 1968.
Record daily precipitation for each month at Hankinson
Month
Record daily precipitation (mm)
Date
Jan
30.5 mm (1.2 in)
22 January 1952
Feb
25.4 mm (1.0 in)
28 February 1930
Mar
38.1 mm (1.5 in)
29 March 1933
Apr
47.0 mm (1.9 in)
14 April 1986
May
76.2 mm (3.0 in)
31 May 1985
Jun
74.9 mm (2.9 in)
14 June 1967
Jul
76.2 mm (3.0 in)
19 July 1962
Aug
65.5 mm (2.6 in)
20 August 1975
Sep
104.1 mm (4.1 in)
22 September 1968
Oct
50.5 mm (2.0 in)
19 October 1984
Nov
38.1 mm (1.5 in)
19 November 1930
Dec
25.9 mm (1.0 in)
11 December 1949
Period of Record Coverage
1929 to 1993
Complete yearUnder 90 percent of days
65 years of record at Hankinson, 1929 to 1993. 5 years have data for under 90 percent of days and are left out of rankings: 1929, 1948, 1958, 1973, 1993.
Cooler than the station meanWarmer than the station mean
One stripe for each of 56 complete years at Hankinson, 1930 to 1992. Blue stripes are years cooler than the station's own mean of 5.5 C (41.9 F); red stripes are warmer. The coolest year was 1950, at 3.1 C (37.6 F), and the warmest was 1931, at 9.6 C (49.2 F). The strongest colour marks a difference of 4.1 C (7.4 F).
Annual mean temperature at Hankinson as warming stripes, 1930 to 1992
Year
Annual mean temperature
Difference from the station mean
1930
7.5 C
+2.01 C
1931
9.6 C
+4.07 C
1932
6.3 C
+0.77 C
1934
7.5 C
+1.97 C
1935
5.5 C
+0.03 C
1936
4.4 C
-1.11 C
1937
4.4 C
-1.09 C
1940
6.0 C
+0.49 C
1941
6.9 C
+1.42 C
1942
5.9 C
+0.40 C
1943
5.0 C
-0.51 C
1944
6.0 C
+0.49 C
1945
4.9 C
-0.58 C
1946
5.7 C
+0.19 C
1947
5.9 C
+0.35 C
1949
5.4 C
-0.15 C
1950
3.1 C
-2.41 C
1951
3.6 C
-1.96 C
1953
6.4 C
+0.84 C
1954
5.7 C
+0.23 C
1955
5.3 C
-0.18 C
1956
4.8 C
-0.73 C
1957
5.4 C
-0.08 C
1959
5.5 C
-0.06 C
1960
4.9 C
-0.65 C
1961
5.6 C
+0.10 C
1962
4.9 C
-0.63 C
1963
5.9 C
+0.38 C
1964
5.5 C
-0.02 C
1965
4.2 C
-1.35 C
1966
4.2 C
-1.29 C
1967
4.6 C
-0.90 C
1968
5.2 C
-0.27 C
1969
4.6 C
-0.93 C
1970
4.6 C
-0.89 C
1971
5.0 C
-0.50 C
1972
4.3 C
-1.24 C
1974
5.8 C
+0.25 C
1975
5.8 C
+0.32 C
1976
6.4 C
+0.92 C
1977
5.2 C
-0.28 C
1978
4.2 C
-1.35 C
1979
3.4 C
-2.09 C
1980
5.9 C
+0.35 C
1981
6.8 C
+1.30 C
1982
4.6 C
-0.94 C
1983
6.2 C
+0.67 C
1984
5.9 C
+0.42 C
1985
4.4 C
-1.08 C
1986
6.0 C
+0.44 C
1987
8.2 C
+2.73 C
1988
6.2 C
+0.70 C
1989
4.5 C
-1.02 C
1990
6.6 C
+1.04 C
1991
6.5 C
+0.97 C
1992
5.9 C
+0.34 C
The fitted trend in annual mean temperature here over 1930 to 1992 is -0.1 C (-0.3 to 0.1) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.1 F (-0.5 to 0.2) 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 Hankinson
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.1 C (-0.3 to 0.1) per decade
-0.1 F (-0.5 to 0.2) per decade
1930 to 1992
56
Not clearly different from zero
Mean daily maximum
-0.2 C (-0.4 to 0.1) per decade
-0.3 F (-0.6 to 0.1) per decade
1930 to 1992
56
Not clearly different from zero
Mean daily minimum
-0.01 C (-0.17 to 0.15) per decade
-0.01 F (-0.30 to 0.27) per decade
1930 to 1992
56
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
1929 to 1993
Yearly extremes at Hankinson: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
44.4 C (111.9 F)
1936
37.8 C (100.0 F)
65
Coldest night (TNn)
-38.9 C (-38.0 F)
1982
-31.7 C (-25.1 F)
65
Wettest day (Rx1day)
104.1 mm (4.1 in)
1968
47.0 mm (1.9 in)
65
Wettest five days (Rx5day)
133.0 mm (5.2 in)
1967
75.6 mm (3.0 in)
65
Longest dry spell (CDD)
78 days
1976
32 days
65
Hottest day (TXx)
The hottest day of the year at Hankinson, 1929 to 1993. The record is 44.4 C (111.9 F) in 1936, marked on the chart; the median year is 37.8 C (100.0 F).
Hottest day (TXx) at Hankinson by year
Year
Hottest day (TXx)
1929
40.0 C (104.0 F)
1930
38.9 C (102.0 F)
1931
42.8 C (109.0 F)
1932
41.1 C (106.0 F)
1933
40.0 C (104.0 F)
1934
43.3 C (109.9 F)
1935
38.3 C (100.9 F)
1936
44.4 C (111.9 F)
1937
40.0 C (104.0 F)
1938
39.4 C (102.9 F)
1939
38.9 C (102.0 F)
1940
40.0 C (104.0 F)
1941
40.0 C (104.0 F)
1942
34.4 C (93.9 F)
1943
36.7 C (98.1 F)
1944
36.1 C (97.0 F)
1945
36.7 C (98.1 F)
1946
37.8 C (100.0 F)
1947
40.6 C (105.1 F)
1948
37.2 C (99.0 F)
1949
41.7 C (107.1 F)
1950
37.2 C (99.0 F)
1951
34.4 C (93.9 F)
1952
36.1 C (97.0 F)
1953
34.4 C (93.9 F)
1954
37.8 C (100.0 F)
1955
36.1 C (97.0 F)
1956
36.7 C (98.1 F)
1957
35.6 C (96.1 F)
1958
38.3 C (100.9 F)
1959
38.9 C (102.0 F)
1960
37.2 C (99.0 F)
1961
35.6 C (96.1 F)
1962
35.0 C (95.0 F)
1963
35.0 C (95.0 F)
1964
36.1 C (97.0 F)
1965
38.3 C (100.9 F)
1966
39.4 C (102.9 F)
1967
34.4 C (93.9 F)
1968
37.2 C (99.0 F)
1969
36.1 C (97.0 F)
1970
37.2 C (99.0 F)
1971
38.9 C (102.0 F)
1972
35.0 C (95.0 F)
1973
38.3 C (100.9 F)
1974
38.9 C (102.0 F)
1975
37.8 C (100.0 F)
1976
39.4 C (102.9 F)
1977
39.4 C (102.9 F)
1978
37.2 C (99.0 F)
1979
34.4 C (93.9 F)
1980
38.9 C (102.0 F)
1981
36.1 C (97.0 F)
1982
40.0 C (104.0 F)
1983
40.6 C (105.1 F)
1984
37.2 C (99.0 F)
1985
37.2 C (99.0 F)
1986
35.0 C (95.0 F)
1987
40.0 C (104.0 F)
1988
41.7 C (107.1 F)
1989
40.0 C (104.0 F)
1990
36.1 C (97.0 F)
1991
38.3 C (100.9 F)
1992
33.9 C (93.0 F)
1993
34.4 C (93.9 F)
Coldest night (TNn)
The coldest night of the year at Hankinson, 1929 to 1993. The record is -38.9 C (-38.0 F) in 1982, marked on the chart; the median year is -31.7 C (-25.1 F).
Coldest night (TNn) at Hankinson by year
Year
Coldest night (TNn)
1929
-27.8 C (-18.0 F)
1930
-32.2 C (-26.0 F)
1931
-26.1 C (-15.0 F)
1932
-30.6 C (-23.1 F)
1933
-33.9 C (-29.0 F)
1934
-30.0 C (-22.0 F)
1935
-35.0 C (-31.0 F)
1936
-36.7 C (-34.1 F)
1937
-33.9 C (-29.0 F)
1938
-35.6 C (-32.1 F)
1939
-33.9 C (-29.0 F)
1940
-31.1 C (-24.0 F)
1941
-30.0 C (-22.0 F)
1942
-30.6 C (-23.1 F)
1943
-33.9 C (-29.0 F)
1944
-31.1 C (-24.0 F)
1945
-31.7 C (-25.1 F)
1946
-31.7 C (-25.1 F)
1947
-29.4 C (-20.9 F)
1948
-36.7 C (-34.1 F)
1949
-31.7 C (-25.1 F)
1950
-32.8 C (-27.0 F)
1951
-35.0 C (-31.0 F)
1952
-33.9 C (-29.0 F)
1953
-29.4 C (-20.9 F)
1954
-34.4 C (-29.9 F)
1955
-32.2 C (-26.0 F)
1956
-29.4 C (-20.9 F)
1957
-31.1 C (-24.0 F)
1958
-30.6 C (-23.1 F)
1959
-27.2 C (-17.0 F)
1960
-30.0 C (-22.0 F)
1961
-32.8 C (-27.0 F)
1962
-33.3 C (-27.9 F)
1963
-31.7 C (-25.1 F)
1964
-29.4 C (-20.9 F)
1965
-32.8 C (-27.0 F)
1966
-33.3 C (-27.9 F)
1967
-32.8 C (-27.0 F)
1968
-33.3 C (-27.9 F)
1969
-31.7 C (-25.1 F)
1970
-35.6 C (-32.1 F)
1971
-30.6 C (-23.1 F)
1972
-36.7 C (-34.1 F)
1973
-31.7 C (-25.1 F)
1974
-31.1 C (-24.0 F)
1975
-27.8 C (-18.0 F)
1976
-31.1 C (-24.0 F)
1977
-33.3 C (-27.9 F)
1978
-31.7 C (-25.1 F)
1979
-33.9 C (-29.0 F)
1980
-30.0 C (-22.0 F)
1981
-28.9 C (-20.0 F)
1982
-38.9 C (-38.0 F)
1983
-35.6 C (-32.1 F)
1984
-32.2 C (-26.0 F)
1985
-33.3 C (-27.9 F)
1986
-32.2 C (-26.0 F)
1987
-30.6 C (-23.1 F)
1988
-32.2 C (-26.0 F)
1989
-33.9 C (-29.0 F)
1990
-33.9 C (-29.0 F)
1991
-28.9 C (-20.0 F)
1992
-28.3 C (-18.9 F)
1993
-30.6 C (-23.1 F)
Wettest day (Rx1day)
The wettest day of the year at Hankinson, 1929 to 1993. The record is 104.1 mm (4.1 in) in 1968, marked on the chart; the median year is 47.0 mm (1.9 in).
Wettest day (Rx1day) at Hankinson by year
Year
Wettest day (Rx1day)
1929
50.8 mm (2.0 in)
1930
68.6 mm (2.7 in)
1931
30.5 mm (1.2 in)
1932
30.5 mm (1.2 in)
1933
40.9 mm (1.6 in)
1934
41.9 mm (1.6 in)
1935
59.7 mm (2.4 in)
1936
57.2 mm (2.3 in)
1937
34.5 mm (1.4 in)
1938
48.3 mm (1.9 in)
1939
40.6 mm (1.6 in)
1940
38.1 mm (1.5 in)
1941
54.6 mm (2.1 in)
1942
34.5 mm (1.4 in)
1943
32.8 mm (1.3 in)
1944
47.5 mm (1.9 in)
1945
55.1 mm (2.2 in)
1946
24.6 mm (1.0 in)
1947
43.9 mm (1.7 in)
1948
54.1 mm (2.1 in)
1949
43.7 mm (1.7 in)
1950
65.5 mm (2.6 in)
1951
71.1 mm (2.8 in)
1952
51.8 mm (2.0 in)
1953
56.1 mm (2.2 in)
1954
48.5 mm (1.9 in)
1955
38.6 mm (1.5 in)
1956
63.5 mm (2.5 in)
1957
57.2 mm (2.3 in)
1958
24.1 mm (0.9 in)
1959
50.8 mm (2.0 in)
1960
49.5 mm (1.9 in)
1961
32.5 mm (1.3 in)
1962
76.2 mm (3.0 in)
1963
44.5 mm (1.8 in)
1964
43.2 mm (1.7 in)
1965
47.0 mm (1.9 in)
1966
51.1 mm (2.0 in)
1967
74.9 mm (2.9 in)
1968
104.1 mm (4.1 in)
1969
31.8 mm (1.3 in)
1970
31.8 mm (1.3 in)
1971
38.9 mm (1.5 in)
1972
46.5 mm (1.8 in)
1973
52.8 mm (2.1 in)
1974
38.4 mm (1.5 in)
1975
72.6 mm (2.9 in)
1976
17.8 mm (0.7 in)
1977
49.5 mm (1.9 in)
1978
53.8 mm (2.1 in)
1979
45.2 mm (1.8 in)
1980
69.1 mm (2.7 in)
1981
33.0 mm (1.3 in)
1982
38.9 mm (1.5 in)
1983
24.1 mm (0.9 in)
1984
50.5 mm (2.0 in)
1985
76.2 mm (3.0 in)
1986
47.0 mm (1.9 in)
1987
41.9 mm (1.6 in)
1988
45.5 mm (1.8 in)
1989
54.1 mm (2.1 in)
1990
38.1 mm (1.5 in)
1991
45.7 mm (1.8 in)
1992
67.3 mm (2.6 in)
1993
48.0 mm (1.9 in)
Wettest five days (Rx5day)
The wettest five days of the year at Hankinson, 1929 to 1993. The record is 133.0 mm (5.2 in) in 1967, marked on the chart; the median year is 75.6 mm (3.0 in).
Wettest five days (Rx5day) at Hankinson by year
Year
Wettest five days (Rx5day)
1929
76.2 mm (3.0 in)
1930
76.2 mm (3.0 in)
1931
58.1 mm (2.3 in)
1932
84.1 mm (3.3 in)
1933
46.2 mm (1.8 in)
1934
67.1 mm (2.6 in)
1935
105.4 mm (4.1 in)
1936
76.3 mm (3.0 in)
1937
43.7 mm (1.7 in)
1938
87.4 mm (3.4 in)
1939
47.5 mm (1.9 in)
1940
53.6 mm (2.1 in)
1941
75.6 mm (3.0 in)
1942
91.7 mm (3.6 in)
1943
111.1 mm (4.4 in)
1944
91.2 mm (3.6 in)
1945
69.3 mm (2.7 in)
1946
50.3 mm (2.0 in)
1947
78.3 mm (3.1 in)
1948
82.6 mm (3.3 in)
1949
77.4 mm (3.0 in)
1950
76.2 mm (3.0 in)
1951
78.7 mm (3.1 in)
1952
61.8 mm (2.4 in)
1953
85.1 mm (3.4 in)
1954
81.5 mm (3.2 in)
1955
57.4 mm (2.3 in)
1956
97.0 mm (3.8 in)
1957
86.4 mm (3.4 in)
1958
30.5 mm (1.2 in)
1959
60.5 mm (2.4 in)
1960
72.4 mm (2.9 in)
1961
45.5 mm (1.8 in)
1962
96.8 mm (3.8 in)
1963
95.9 mm (3.8 in)
1964
48.3 mm (1.9 in)
1965
47.0 mm (1.9 in)
1966
65.3 mm (2.6 in)
1967
133.0 mm (5.2 in)
1968
104.1 mm (4.1 in)
1969
49.3 mm (1.9 in)
1970
55.1 mm (2.2 in)
1971
65.0 mm (2.6 in)
1972
74.2 mm (2.9 in)
1973
69.4 mm (2.7 in)
1974
56.4 mm (2.2 in)
1975
112.5 mm (4.4 in)
1976
29.0 mm (1.1 in)
1977
76.0 mm (3.0 in)
1978
80.7 mm (3.2 in)
1979
63.1 mm (2.5 in)
1980
75.7 mm (3.0 in)
1981
63.6 mm (2.5 in)
1982
81.5 mm (3.2 in)
1983
65.8 mm (2.6 in)
1984
106.3 mm (4.2 in)
1985
100.7 mm (4.0 in)
1986
73.1 mm (2.9 in)
1987
51.0 mm (2.0 in)
1988
68.4 mm (2.7 in)
1989
55.9 mm (2.2 in)
1990
60.2 mm (2.4 in)
1991
85.9 mm (3.4 in)
1992
100.8 mm (4.0 in)
1993
80.3 mm (3.2 in)
Longest dry spell (CDD)
The longest dry spell of the year at Hankinson, 1929 to 1993. The record is 78 days in 1976, marked on the chart; the median year is 32 days.
Longest dry spell (CDD) at Hankinson by year
Year
Longest dry spell (CDD)
1929
19 days
1930
46 days
1931
56 days
1932
41 days
1933
48 days
1934
39 days
1935
35 days
1936
42 days
1937
44 days
1938
17 days
1939
66 days
1940
27 days
1941
35 days
1942
46 days
1943
30 days
1944
27 days
1945
24 days
1946
29 days
1947
22 days
1948
29 days
1949
23 days
1950
33 days
1951
32 days
1952
23 days
1953
31 days
1954
35 days
1955
33 days
1956
38 days
1957
29 days
1958
30 days
1959
28 days
1960
32 days
1961
39 days
1962
38 days
1963
38 days
1964
29 days
1965
23 days
1966
36 days
1967
40 days
1968
40 days
1969
37 days
1970
33 days
1971
24 days
1972
24 days
1973
22 days
1974
60 days
1975
48 days
1976
78 days
1977
28 days
1978
34 days
1979
32 days
1980
31 days
1981
28 days
1982
39 days
1983
32 days
1984
15 days
1985
20 days
1986
26 days
1987
21 days
1988
26 days
1989
26 days
1990
32 days
1991
22 days
1992
27 days
1993
14 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 Hankinson falls on 9 May and the median first autumn frost on 24 September, which leaves a median of 139 days between them.
Fitted over all years, the growing season changes by +2.7 days per decade at this station.
Frost dates and growing season at Hankinson
Measure
Median, all years
Earliest period
Recent period (1962 to 1992)
Recent against earliest
Fitted trend
Last spring frost
9 May
n/a
7 May
n/a
-1.3 days per decade
First autumn frost
24 September
n/a
26 September
n/a
+1.3 days per decade
Growing days
139 days
n/a
140 days
n/a
+2.7 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
56 years, 1930 to 1992
A day with at least 46.6 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 95.3 mm (3.8 in) of rain is expected about once in 100 years.
Rainfall return levels at Hankinson: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
46.6 mm (1.8 in)
5 years
60.8 mm (2.4 in)
10 years
69.8 mm (2.7 in)
25 years
80.5 mm (3.2 in)
50 years
88.1 mm (3.5 in)
100 years
95.3 mm (3.8 in)
Longer than the 56 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, 56 years of values from 1930 to 1992.
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: 104.1 mm (4.1 in) in 1968; 76.2 mm (3.0 in) in 1962; 76.2 mm (3.0 in) in 1985.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Hankinson standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Hankinson 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.