Record envelope, standing records and threshold days for Amidon (USC00320209), North Dakota, United States, with 93 years of record.
Key Facts for Amidon
Amidon (USC00320209) is a weather station in North Dakota, United States at 46.48 latitude and -103.32 longitude, 887 m (2,910 ft) above sea level.
The station reports from 1920 to 2012, 93 years of record.
1,464 records set at Amidon still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Amidon set a daily record high minimum temperature of 9.4 C (48.9 F) on 15 October 2010.
About the Station
Location: North Dakota, United States, 46.48 latitude, -103.32 longitude.
Elevation: 887 m (2,910 ft).
Period of record: 1920 to 2012, 93 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 Amidon. 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 Amidon, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
17.8 C (64.0 F)
-36.7 C (-34.1 F)
n/a
n/a
Feb
21.7 C (71.1 F)
-39.4 C (-38.9 F)
n/a
n/a
Mar
27.2 C (81.0 F)
-33.3 C (-27.9 F)
n/a
n/a
Apr
32.8 C (91.0 F)
-20.6 C (-5.1 F)
n/a
n/a
May
36.7 C (98.1 F)
-15.0 C (5.0 F)
n/a
n/a
Jun
41.7 C (107.1 F)
-3.9 C (25.0 F)
n/a
n/a
Jul
42.2 C (108.0 F)
2.2 C (36.0 F)
n/a
n/a
Aug
42.2 C (108.0 F)
-1.1 C (30.0 F)
n/a
n/a
Sep
40.6 C (105.1 F)
-11.1 C (12.0 F)
n/a
n/a
Oct
34.4 C (93.9 F)
-22.2 C (-8.0 F)
n/a
n/a
Nov
27.2 C (81.0 F)
-32.2 C (-26.0 F)
n/a
n/a
Dec
19.4 C (66.9 F)
-40.0 C (-40.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Amidon still stand. 1992 holds the most, with 34.
Standing records at Amidon by the year they were set
Year set
Standing records
1920
4
1921
29
1922
22
1923
25
1924
29
1925
11
1926
13
1927
23
1928
1
1931
15
1937
22
1938
12
1939
32
1940
21
1941
15
1942
28
1943
18
1944
9
1945
15
1946
17
1947
11
1948
21
1949
20
1950
23
1951
27
1952
20
1953
16
1954
27
1955
24
1956
14
1957
7
1958
17
1959
15
1960
10
1961
4
1962
23
1963
25
1964
15
1965
27
1966
8
1967
21
1968
21
1969
17
1970
11
1971
13
1972
24
1973
7
1974
13
1975
11
1976
8
1977
20
1978
9
1979
11
1980
15
1981
14
1982
14
1983
18
1984
10
1985
32
1986
23
1987
20
1988
33
1989
26
1990
22
1991
21
1992
34
1993
17
1994
10
1995
28
1996
26
1997
17
1998
13
1999
22
2000
15
2001
14
2002
33
2003
25
2004
7
2005
9
2006
18
2007
14
2008
3
2009
8
2010
2
All-Time Record Progression
4 new records
4 all-time records were set at Amidon between 3 February 1989 and 28 February 1998. Each dot is a new record.
When Amidon set new all-time records
Date
Kind
Detail
1989-02-03
Record low maximum temperature
Record low maximum temperature -31.1 C (-24.0 F)
1989-12-21
Record low minimum temperature
Record low minimum temperature -40.0 C (-40.0 F)
1996-02-02
Record low maximum temperature
Record low maximum temperature -31.7 C (-25.1 F)
1998-02-28
Record daily snowfall
Record daily snowfall 61.0 cm (24.0 in)
Wettest Day of Each Month
Jun: 111.8 mm (4.4 in)
The wettest day on record for each calendar month at Amidon. The most was 111.8 mm (4.4 in) on 27 June 1955.
Record daily precipitation for each month at Amidon
Month
Record daily precipitation (mm)
Date
Jan
18.0 mm (0.7 in)
4 January 1986
Feb
15.2 mm (0.6 in)
22 February 1922
Mar
49.3 mm (1.9 in)
17 March 2003
Apr
43.2 mm (1.7 in)
21 April 1940
May
68.1 mm (2.7 in)
8 May 1970
Jun
111.8 mm (4.4 in)
27 June 1955
Jul
69.9 mm (2.8 in)
2 July 1966
Aug
52.1 mm (2.1 in)
12 August 1954
Sep
80.0 mm (3.1 in)
5 September 1971
Oct
57.7 mm (2.3 in)
28 October 1982
Nov
34.5 mm (1.4 in)
6 November 2008
Dec
26.7 mm (1.1 in)
30 December 2005
Period of Record Coverage
1920 to 2010
Complete yearUnder 90 percent of days
84 years of record at Amidon, 1920 to 2010. 21 years have data for under 90 percent of days and are left out of rankings: 1920, 1925, 1926, 1927, 1928, 1931, 1937, 1957 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 55 complete years at Amidon, 1921 to 2003. Blue stripes are years cooler than the station's own mean of 5.9 C (42.7 F); red stripes are warmer. The coolest year was 1951, at 3.5 C (38.2 F), and the warmest was 1999, at 7.8 C (46.0 F). The strongest colour marks a difference of 2.5 C (4.5 F).
Annual mean temperature at Amidon as warming stripes, 1921 to 2003
Year
Annual mean temperature
Difference from the station mean
1921
7.1 C
+1.18 C
1922
5.2 C
-0.75 C
1923
6.7 C
+0.75 C
1938
7.0 C
+1.09 C
1939
6.9 C
+0.99 C
1940
6.3 C
+0.37 C
1941
7.5 C
+1.59 C
1942
6.2 C
+0.30 C
1943
6.0 C
+0.05 C
1944
6.1 C
+0.18 C
1945
5.6 C
-0.38 C
1946
6.8 C
+0.83 C
1947
5.6 C
-0.33 C
1948
6.2 C
+0.23 C
1949
5.5 C
-0.40 C
1950
3.9 C
-2.02 C
1951
3.5 C
-2.47 C
1952
5.9 C
-0.07 C
1953
6.9 C
+0.99 C
1954
6.1 C
+0.13 C
1955
5.1 C
-0.84 C
1960
5.9 C
-0.05 C
1962
6.0 C
+0.06 C
1963
7.1 C
+1.15 C
1964
5.7 C
-0.23 C
1965
4.6 C
-1.34 C
1966
5.1 C
-0.85 C
1967
5.4 C
-0.52 C
1968
5.3 C
-0.68 C
1969
5.0 C
-0.92 C
1970
5.1 C
-0.81 C
1971
5.1 C
-0.86 C
1972
4.4 C
-1.54 C
1975
4.9 C
-1.04 C
1978
4.5 C
-1.45 C
1979
4.7 C
-1.27 C
1980
6.8 C
+0.88 C
1982
4.5 C
-1.46 C
1983
6.0 C
+0.10 C
1984
6.2 C
+0.22 C
1985
4.4 C
-1.53 C
1989
5.7 C
-0.20 C
1990
7.7 C
+1.71 C
1991
7.2 C
+1.28 C
1992
7.4 C
+1.49 C
1993
4.9 C
-1.00 C
1994
6.6 C
+0.61 C
1995
6.6 C
+0.62 C
1996
4.5 C
-1.46 C
1997
7.0 C
+1.04 C
1998
7.8 C
+1.82 C
1999
7.8 C
+1.85 C
2000
6.6 C
+0.66 C
2001
7.3 C
+1.31 C
2003
7.2 C
+1.21 C
The fitted trend in annual mean temperature here over 1921 to 2003 is 0.05 C (-0.08 to 0.18) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.1 to 0.3) per decade. The slope is a straight line fitted to 55 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Amidon
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.05 C (-0.08 to 0.18) per decade
0.1 F (-0.1 to 0.3) per decade
1921 to 2003
55
Not clearly different from zero
Mean daily maximum
0.04 C (-0.13 to 0.20) per decade
0.1 F (-0.2 to 0.4) per decade
1921 to 2003
55
Not clearly different from zero
Mean daily minimum
0.1 C (-0.1 to 0.2) per decade
0.1 F (-0.1 to 0.3) per decade
1921 to 2003
55
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
1920 to 2012
Yearly extremes at Amidon: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
42.2 C (108.0 F)
1949
38.3 C (100.9 F)
84
Coldest night (TNn)
-40.0 C (-40.0 F)
1989
-31.7 C (-25.1 F)
84
Wettest day (Rx1day)
111.8 mm (4.4 in)
1955
35.6 mm (1.4 in)
85
Wettest five days (Rx5day)
121.7 mm (4.8 in)
1955
55.9 mm (2.2 in)
82
Longest dry spell (CDD)
75 days
1983
35 days
85
Hottest day (TXx)
The hottest day of the year at Amidon, 1920 to 2012. The record is 42.2 C (108.0 F) in 1949, marked on the chart; the median year is 38.3 C (100.9 F).
Hottest day (TXx) at Amidon by year
Year
Hottest day (TXx)
1920
16.1 C (61.0 F)
1921
38.9 C (102.0 F)
1922
36.1 C (97.0 F)
1923
37.8 C (100.0 F)
1924
38.3 C (100.9 F)
1925
38.9 C (102.0 F)
1926
38.3 C (100.9 F)
1927
35.6 C (96.1 F)
1928
37.8 C (100.0 F)
1931
27.8 C (82.0 F)
1937
40.6 C (105.1 F)
1938
39.4 C (102.9 F)
1939
38.9 C (102.0 F)
1940
38.3 C (100.9 F)
1941
39.4 C (102.9 F)
1942
37.8 C (100.0 F)
1943
37.2 C (99.0 F)
1944
35.6 C (96.1 F)
1945
37.8 C (100.0 F)
1946
37.8 C (100.0 F)
1947
39.4 C (102.9 F)
1948
40.6 C (105.1 F)
1949
42.2 C (108.0 F)
1950
35.6 C (96.1 F)
1951
38.9 C (102.0 F)
1952
38.9 C (102.0 F)
1953
37.8 C (100.0 F)
1954
38.3 C (100.9 F)
1955
37.8 C (100.0 F)
1956
36.7 C (98.1 F)
1957
38.3 C (100.9 F)
1958
38.3 C (100.9 F)
1959
38.3 C (100.9 F)
1960
40.0 C (104.0 F)
1961
37.2 C (99.0 F)
1962
37.2 C (99.0 F)
1963
40.0 C (104.0 F)
1964
37.2 C (99.0 F)
1965
37.8 C (100.0 F)
1966
35.6 C (96.1 F)
1967
36.7 C (98.1 F)
1968
35.6 C (96.1 F)
1969
38.9 C (102.0 F)
1970
36.7 C (98.1 F)
1971
37.8 C (100.0 F)
1972
37.2 C (99.0 F)
1973
38.3 C (100.9 F)
1974
36.7 C (98.1 F)
1975
38.3 C (100.9 F)
1976
38.3 C (100.9 F)
1977
40.6 C (105.1 F)
1978
40.6 C (105.1 F)
1979
38.9 C (102.0 F)
1980
40.0 C (104.0 F)
1981
40.6 C (105.1 F)
1982
35.6 C (96.1 F)
1983
40.0 C (104.0 F)
1984
38.3 C (100.9 F)
1985
38.3 C (100.9 F)
1986
37.8 C (100.0 F)
1987
35.0 C (95.0 F)
1988
41.7 C (107.1 F)
1989
41.7 C (107.1 F)
1990
39.4 C (102.9 F)
1991
40.0 C (104.0 F)
1992
37.8 C (100.0 F)
1993
33.3 C (91.9 F)
1994
38.3 C (100.9 F)
1995
38.9 C (102.0 F)
1996
40.6 C (105.1 F)
1997
37.8 C (100.0 F)
1998
40.6 C (105.1 F)
1999
40.0 C (104.0 F)
2000
39.4 C (102.9 F)
2001
40.6 C (105.1 F)
2002
40.6 C (105.1 F)
2003
42.2 C (108.0 F)
2004
40.0 C (104.0 F)
2005
37.2 C (99.0 F)
2006
41.1 C (106.0 F)
2007
42.2 C (108.0 F)
2008
37.2 C (99.0 F)
2009
35.0 C (95.0 F)
2010
28.3 C (82.9 F)
2012
n/a
Coldest night (TNn)
The coldest night of the year at Amidon, 1920 to 2012. The record is -40.0 C (-40.0 F) in 1989, marked on the chart; the median year is -31.7 C (-25.1 F).
Coldest night (TNn) at Amidon by year
Year
Coldest night (TNn)
1920
-28.9 C (-20.0 F)
1921
-31.7 C (-25.1 F)
1922
-33.3 C (-27.9 F)
1923
-32.8 C (-27.0 F)
1924
-37.8 C (-36.0 F)
1925
-28.3 C (-18.9 F)
1926
-27.2 C (-17.0 F)
1927
-35.0 C (-31.0 F)
1928
1.7 C (35.1 F)
1931
-23.3 C (-9.9 F)
1937
-30.0 C (-22.0 F)
1938
-32.2 C (-26.0 F)
1939
-39.4 C (-38.9 F)
1940
-35.0 C (-31.0 F)
1941
-27.2 C (-17.0 F)
1942
-32.2 C (-26.0 F)
1943
-36.1 C (-33.0 F)
1944
-31.1 C (-24.0 F)
1945
-31.1 C (-24.0 F)
1946
-32.8 C (-27.0 F)
1947
-32.2 C (-26.0 F)
1948
-32.8 C (-27.0 F)
1949
-35.6 C (-32.1 F)
1950
-35.6 C (-32.1 F)
1951
-33.9 C (-29.0 F)
1952
-31.7 C (-25.1 F)
1953
-28.9 C (-20.0 F)
1954
-36.7 C (-34.1 F)
1955
-31.7 C (-25.1 F)
1956
-29.4 C (-20.9 F)
1957
-31.7 C (-25.1 F)
1958
-27.8 C (-18.0 F)
1959
-27.2 C (-17.0 F)
1960
-29.4 C (-20.9 F)
1961
-28.3 C (-18.9 F)
1962
-36.7 C (-34.1 F)
1963
-32.8 C (-27.0 F)
1964
-34.4 C (-29.9 F)
1965
-31.1 C (-24.0 F)
1966
-35.0 C (-31.0 F)
1967
-31.7 C (-25.1 F)
1968
-34.4 C (-29.9 F)
1969
-32.8 C (-27.0 F)
1970
-34.4 C (-29.9 F)
1971
-33.9 C (-29.0 F)
1972
-36.7 C (-34.1 F)
1973
-31.1 C (-24.0 F)
1974
-31.7 C (-25.1 F)
1975
-30.6 C (-23.1 F)
1976
-27.8 C (-18.0 F)
1977
-36.1 C (-33.0 F)
1978
-32.2 C (-26.0 F)
1979
-33.3 C (-27.9 F)
1980
-31.1 C (-24.0 F)
1981
-30.6 C (-23.1 F)
1982
-35.0 C (-31.0 F)
1983
-36.1 C (-33.0 F)
1984
-32.2 C (-26.0 F)
1985
-33.9 C (-29.0 F)
1986
-31.1 C (-24.0 F)
1987
-23.9 C (-11.0 F)
1988
-30.6 C (-23.1 F)
1989
-40.0 C (-40.0 F)
1990
-35.0 C (-31.0 F)
1991
-27.8 C (-18.0 F)
1992
-33.9 C (-29.0 F)
1993
-33.3 C (-27.9 F)
1994
-32.8 C (-27.0 F)
1995
-28.9 C (-20.0 F)
1996
-37.2 C (-35.0 F)
1997
-32.2 C (-26.0 F)
1998
-31.7 C (-25.1 F)
1999
-29.4 C (-20.9 F)
2000
-29.4 C (-20.9 F)
2001
-27.2 C (-17.0 F)
2002
-26.1 C (-15.0 F)
2003
-31.1 C (-24.0 F)
2004
-31.7 C (-25.1 F)
2005
-27.8 C (-18.0 F)
2006
-30.0 C (-22.0 F)
2007
-28.9 C (-20.0 F)
2008
-11.7 C (10.9 F)
2009
-32.8 C (-27.0 F)
2010
-30.6 C (-23.1 F)
2012
n/a
Wettest day (Rx1day)
The wettest day of the year at Amidon, 1920 to 2012. The record is 111.8 mm (4.4 in) in 1955, marked on the chart; the median year is 35.6 mm (1.4 in).
Wettest day (Rx1day) at Amidon by year
Year
Wettest day (Rx1day)
1920
1.0 mm (0.04 in)
1921
29.0 mm (1.1 in)
1922
89.7 mm (3.5 in)
1923
62.5 mm (2.5 in)
1924
38.9 mm (1.5 in)
1925
52.1 mm (2.1 in)
1926
31.8 mm (1.3 in)
1927
63.5 mm (2.5 in)
1928
24.9 mm (1.0 in)
1931
7.6 mm (0.30 in)
1937
59.4 mm (2.3 in)
1938
39.9 mm (1.6 in)
1939
27.9 mm (1.1 in)
1940
43.2 mm (1.7 in)
1941
61.0 mm (2.4 in)
1942
34.8 mm (1.4 in)
1943
40.1 mm (1.6 in)
1944
53.3 mm (2.1 in)
1945
41.1 mm (1.6 in)
1946
31.0 mm (1.2 in)
1947
47.2 mm (1.9 in)
1948
38.1 mm (1.5 in)
1949
29.2 mm (1.1 in)
1950
19.1 mm (0.8 in)
1951
28.4 mm (1.1 in)
1952
21.6 mm (0.9 in)
1953
32.8 mm (1.3 in)
1954
52.1 mm (2.1 in)
1955
111.8 mm (4.4 in)
1956
34.5 mm (1.4 in)
1957
70.4 mm (2.8 in)
1958
31.0 mm (1.2 in)
1959
39.6 mm (1.6 in)
1960
33.8 mm (1.3 in)
1961
35.3 mm (1.4 in)
1962
44.5 mm (1.8 in)
1963
32.5 mm (1.3 in)
1964
56.4 mm (2.2 in)
1965
38.9 mm (1.5 in)
1966
69.9 mm (2.8 in)
1967
38.4 mm (1.5 in)
1968
17.0 mm (0.7 in)
1969
45.0 mm (1.8 in)
1970
68.1 mm (2.7 in)
1971
80.0 mm (3.1 in)
1972
40.6 mm (1.6 in)
1973
33.0 mm (1.3 in)
1974
42.2 mm (1.7 in)
1975
30.5 mm (1.2 in)
1976
26.7 mm (1.1 in)
1977
30.0 mm (1.2 in)
1978
23.6 mm (0.9 in)
1979
42.7 mm (1.7 in)
1980
36.8 mm (1.4 in)
1981
24.4 mm (1.0 in)
1982
57.7 mm (2.3 in)
1983
27.7 mm (1.1 in)
1984
33.8 mm (1.3 in)
1985
27.9 mm (1.1 in)
1986
37.6 mm (1.5 in)
1987
38.6 mm (1.5 in)
1988
36.3 mm (1.4 in)
1989
24.9 mm (1.0 in)
1990
41.7 mm (1.6 in)
1991
37.6 mm (1.5 in)
1992
16.8 mm (0.7 in)
1993
38.6 mm (1.5 in)
1994
33.5 mm (1.3 in)
1995
32.3 mm (1.3 in)
1996
27.9 mm (1.1 in)
1997
23.9 mm (0.9 in)
1998
51.3 mm (2.0 in)
1999
38.4 mm (1.5 in)
2000
26.7 mm (1.1 in)
2001
35.6 mm (1.4 in)
2002
29.7 mm (1.2 in)
2003
49.3 mm (1.9 in)
2004
25.9 mm (1.0 in)
2005
26.7 mm (1.1 in)
2006
50.8 mm (2.0 in)
2007
30.5 mm (1.2 in)
2008
34.5 mm (1.4 in)
2009
36.1 mm (1.4 in)
2010
14.0 mm (0.6 in)
2012
0.0 mm (0.00 in)
Wettest five days (Rx5day)
The wettest five days of the year at Amidon, 1920 to 2012. The record is 121.7 mm (4.8 in) in 1955, marked on the chart; the median year is 55.9 mm (2.2 in).
Wettest five days (Rx5day) at Amidon by year
Year
Wettest five days (Rx5day)
1920
1.0 mm (0.04 in)
1921
47.1 mm (1.9 in)
1922
15.2 mm (0.6 in)
1923
26.0 mm (1.0 in)
1924
63.0 mm (2.5 in)
1925
9.9 mm (0.39 in)
1926
63.7 mm (2.5 in)
1927
97.7 mm (3.8 in)
1928
n/a
1931
n/a
1937
60.4 mm (2.4 in)
1938
65.8 mm (2.6 in)
1939
36.8 mm (1.4 in)
1940
66.8 mm (2.6 in)
1941
106.0 mm (4.2 in)
1942
61.4 mm (2.4 in)
1943
65.2 mm (2.6 in)
1944
62.7 mm (2.5 in)
1945
42.7 mm (1.7 in)
1946
50.6 mm (2.0 in)
1947
96.9 mm (3.8 in)
1948
63.0 mm (2.5 in)
1949
44.7 mm (1.8 in)
1950
34.9 mm (1.4 in)
1951
48.3 mm (1.9 in)
1952
39.1 mm (1.5 in)
1953
62.6 mm (2.5 in)
1954
64.3 mm (2.5 in)
1955
121.7 mm (4.8 in)
1956
68.8 mm (2.7 in)
1957
81.8 mm (3.2 in)
1958
49.6 mm (2.0 in)
1959
56.9 mm (2.2 in)
1960
70.6 mm (2.8 in)
1961
54.6 mm (2.1 in)
1962
75.1 mm (3.0 in)
1963
68.6 mm (2.7 in)
1964
111.8 mm (4.4 in)
1965
83.9 mm (3.3 in)
1966
73.2 mm (2.9 in)
1967
64.8 mm (2.6 in)
1968
39.9 mm (1.6 in)
1969
87.2 mm (3.4 in)
1970
111.0 mm (4.4 in)
1971
90.7 mm (3.6 in)
1972
66.4 mm (2.6 in)
1973
51.3 mm (2.0 in)
1974
42.7 mm (1.7 in)
1975
54.1 mm (2.1 in)
1976
33.8 mm (1.3 in)
1977
64.6 mm (2.5 in)
1978
52.7 mm (2.1 in)
1979
63.5 mm (2.5 in)
1980
52.5 mm (2.1 in)
1981
53.2 mm (2.1 in)
1982
76.5 mm (3.0 in)
1983
49.2 mm (1.9 in)
1984
66.3 mm (2.6 in)
1985
65.8 mm (2.6 in)
1986
37.6 mm (1.5 in)
1987
80.5 mm (3.2 in)
1988
36.3 mm (1.4 in)
1989
27.4 mm (1.1 in)
1990
56.4 mm (2.2 in)
1991
45.8 mm (1.8 in)
1992
29.9 mm (1.2 in)
1993
74.5 mm (2.9 in)
1994
63.5 mm (2.5 in)
1995
40.4 mm (1.6 in)
1996
58.6 mm (2.3 in)
1997
41.9 mm (1.6 in)
1998
68.6 mm (2.7 in)
1999
48.3 mm (1.9 in)
2000
55.4 mm (2.2 in)
2001
51.1 mm (2.0 in)
2002
52.3 mm (2.1 in)
2003
65.5 mm (2.6 in)
2004
42.4 mm (1.7 in)
2005
49.2 mm (1.9 in)
2006
50.8 mm (2.0 in)
2007
38.9 mm (1.5 in)
2008
34.5 mm (1.4 in)
2009
44.7 mm (1.8 in)
2010
14.0 mm (0.6 in)
2012
n/a
Longest dry spell (CDD)
The longest dry spell of the year at Amidon, 1920 to 2012. The record is 75 days in 1983, marked on the chart; the median year is 35 days.
Longest dry spell (CDD) at Amidon by year
Year
Longest dry spell (CDD)
1920
30 days
1921
58 days
1922
28 days
1923
26 days
1924
26 days
1925
13 days
1926
21 days
1927
29 days
1928
1 day
1931
1 day
1937
32 days
1938
29 days
1939
34 days
1940
28 days
1941
41 days
1942
36 days
1943
35 days
1944
46 days
1945
45 days
1946
27 days
1947
46 days
1948
29 days
1949
42 days
1950
29 days
1951
20 days
1952
48 days
1953
25 days
1954
64 days
1955
44 days
1956
58 days
1957
21 days
1958
30 days
1959
47 days
1960
35 days
1961
74 days
1962
46 days
1963
64 days
1964
43 days
1965
49 days
1966
29 days
1967
25 days
1968
26 days
1969
41 days
1970
29 days
1971
54 days
1972
33 days
1973
23 days
1974
41 days
1975
34 days
1976
38 days
1977
41 days
1978
36 days
1979
33 days
1980
60 days
1981
63 days
1982
22 days
1983
75 days
1984
34 days
1985
43 days
1986
45 days
1987
35 days
1988
37 days
1989
45 days
1990
55 days
1991
38 days
1992
29 days
1993
31 days
1994
29 days
1995
25 days
1996
38 days
1997
31 days
1998
29 days
1999
63 days
2000
38 days
2001
39 days
2002
30 days
2003
24 days
2004
22 days
2005
34 days
2006
33 days
2007
43 days
2008
48 days
2009
51 days
2010
61 days
2012
1 day
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
55 years with a frost
Across 55 years with a frost, the median last spring frost at Amidon falls on 18 May and the median first autumn frost on 21 September, which leaves a median of 127 days between them.
Fitted over all years, the growing season changes by +0.3 days per decade at this station.
Frost dates and growing season at Amidon
Measure
Median, all years
Earliest period
Recent period (1965 to 2003)
Recent against earliest
Fitted trend
Last spring frost
18 May
n/a
18 May
n/a
+0.3 days per decade
First autumn frost
21 September
n/a
22 September
n/a
+0.7 days per decade
Growing days
127 days
n/a
130 days
n/a
+0.3 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, 1921 to 2003
A day with at least 35.8 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 99.8 mm (3.9 in) of rain is expected about once in 100 years.
Rainfall return levels at Amidon: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
35.8 mm (1.4 in)
5 years
48.8 mm (1.9 in)
10 years
58.8 mm (2.3 in)
25 years
73.5 mm (2.9 in)
50 years
85.9 mm (3.4 in)
100 years
99.8 mm (3.9 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 1921 to 2003.
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: 111.8 mm (4.4 in) in 1955; 80.0 mm (3.1 in) in 1971; 70.4 mm (2.8 in) in 1957.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Amidon standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Amidon 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.