Record envelope, standing records and threshold days for Cedar Butte (USC00391539), South Dakota, United States, with 100 years of record.
Key Facts for Cedar Butte
Cedar Butte (USC00391539) is a weather station in South Dakota, United States at 43.58 latitude and -101.02 longitude, 718 m (2,355 ft) above sea level.
The station reports from 1918 to 2017, 100 years of record.
1,464 records set at Cedar Butte still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Cedar Butte set a daily record high maximum temperature of 32.8 C (91.0 F) on 2 June 2017.
About the Station
Location: South Dakota, United States, 43.58 latitude, -101.02 longitude.
Elevation: 718 m (2,355 ft).
Period of record: 1918 to 2017, 100 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 Cedar Butte. 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 Cedar Butte, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
22.8 C (73.0 F)
-32.2 C (-26.0 F)
n/a
n/a
Feb
25.0 C (77.0 F)
-33.9 C (-29.0 F)
n/a
n/a
Mar
30.0 C (86.0 F)
-28.3 C (-18.9 F)
n/a
n/a
Apr
35.6 C (96.1 F)
-16.1 C (3.0 F)
n/a
n/a
May
38.3 C (100.9 F)
-5.6 C (21.9 F)
n/a
n/a
Jun
44.4 C (111.9 F)
0.6 C (33.1 F)
n/a
n/a
Jul
46.7 C (116.1 F)
3.9 C (39.0 F)
n/a
n/a
Aug
43.3 C (109.9 F)
2.8 C (37.0 F)
n/a
n/a
Sep
41.1 C (106.0 F)
-7.8 C (18.0 F)
n/a
n/a
Oct
37.2 C (99.0 F)
-17.2 C (1.0 F)
n/a
n/a
Nov
30.6 C (87.1 F)
-26.1 C (-15.0 F)
n/a
n/a
Dec
22.8 C (73.0 F)
-34.4 C (-29.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Cedar Butte still stand. 1985 holds the most, with 47.
Standing records at Cedar Butte by the year they were set
Year set
Standing records
1919
11
1920
37
1921
17
1922
4
1958
12
1959
33
1960
19
1961
16
1962
33
1963
24
1964
31
1965
41
1966
25
1967
29
1968
17
1969
29
1970
17
1971
15
1972
28
1973
14
1974
21
1975
22
1976
33
1977
20
1978
7
1979
30
1980
20
1981
13
1982
14
1983
39
1984
17
1985
47
1986
23
1987
25
1988
26
1989
40
1990
26
1991
31
1992
31
1993
22
1994
17
1995
21
1996
17
1997
27
1998
18
1999
20
2000
31
2001
17
2002
29
2003
26
2004
12
2005
24
2006
24
2007
18
2008
12
2009
32
2010
16
2011
20
2012
29
2013
24
2014
28
2015
30
2016
5
2017
8
All-Time Record Progression
6 new records
6 all-time records were set at Cedar Butte between 10 November 1985 and 16 July 2006. Each dot is a new record.
When Cedar Butte set new all-time records
Date
Kind
Detail
1985-11-10
Record snow depth
Record snow depth 50.8 cm (20.0 in)
1988-06-24
Record high maximum temperature
Record high maximum temperature 44.4 C (111.9 F)
1989-12-21
Record low minimum temperature
Record low minimum temperature -33.3 C (-27.9 F)
1989-12-22
Record low minimum temperature
Record low minimum temperature -34.4 C (-29.9 F)
1995-04-13
Record daily snowfall
Record daily snowfall 50.8 cm (20.0 in)
2006-07-16
Record high maximum temperature
Record high maximum temperature 46.7 C (116.1 F)
Wettest Day of Each Month
Apr: 108.0 mm (4.3 in)
The wettest day on record for each calendar month at Cedar Butte. The most was 108.0 mm (4.3 in) on 20 April 1971.
Record daily precipitation for each month at Cedar Butte
Month
Record daily precipitation (mm)
Date
Jan
24.6 mm (1.0 in)
18 January 1922
Feb
25.4 mm (1.0 in)
9 February 1953
Mar
52.6 mm (2.1 in)
6 March 1996
Apr
108.0 mm (4.3 in)
20 April 1971
May
71.9 mm (2.8 in)
1 May 1983
Jun
103.6 mm (4.1 in)
21 June 1994
Jul
61.0 mm (2.4 in)
19 July 1957
Aug
76.5 mm (3.0 in)
19 August 1966
Sep
39.1 mm (1.5 in)
4 September 2016
Oct
57.4 mm (2.3 in)
7 October 2007
Nov
61.0 mm (2.4 in)
1 November 1920
Dec
27.9 mm (1.1 in)
25 December 2016
Period of Record Coverage
1918 to 2017
Complete yearUnder 90 percent of days
65 years of record at Cedar Butte, 1918 to 2017. 20 years have data for under 90 percent of days and are left out of rankings: 1918, 1919, 1922, 1958, 1960, 1961, 1966, 1973 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 47 complete years at Cedar Butte, 1920 to 2015. Blue stripes are years cooler than the station's own mean of 9.4 C (48.9 F); red stripes are warmer. The coolest year was 1996, at 7.6 C (45.7 F), and the warmest was 2012, at 11.5 C (52.8 F). The strongest colour marks a difference of 2.2 C (4.0 F).
Annual mean temperature at Cedar Butte as warming stripes, 1920 to 2015
Year
Annual mean temperature
Difference from the station mean
1920
7.6 C
-1.78 C
1959
9.0 C
-0.41 C
1961
9.5 C
+0.10 C
1962
9.3 C
-0.13 C
1963
10.6 C
+1.16 C
1964
9.5 C
+0.12 C
1965
9.2 C
-0.19 C
1967
9.4 C
-0.05 C
1968
9.1 C
-0.33 C
1969
9.5 C
+0.07 C
1970
9.1 C
-0.36 C
1971
9.0 C
-0.42 C
1972
8.6 C
-0.85 C
1973
10.2 C
+0.77 C
1974
10.8 C
+1.40 C
1975
9.3 C
-0.09 C
1977
10.0 C
+0.63 C
1979
8.5 C
-0.96 C
1982
8.5 C
-0.89 C
1983
9.2 C
-0.18 C
1984
9.5 C
+0.12 C
1985
8.4 C
-1.03 C
1986
9.8 C
+0.39 C
1987
11.1 C
+1.64 C
1988
10.4 C
+1.02 C
1989
9.5 C
+0.05 C
1990
10.7 C
+1.29 C
1991
10.6 C
+1.17 C
1992
9.9 C
+0.45 C
1993
8.2 C
-1.18 C
1994
9.8 C
+0.35 C
1995
9.4 C
-0.05 C
1996
7.6 C
-1.79 C
1997
9.3 C
-0.12 C
1999
10.5 C
+1.09 C
2000
9.4 C
+0.00 C
2001
9.9 C
+0.53 C
2003
9.8 C
+0.38 C
2005
10.3 C
+0.84 C
2008
8.5 C
-0.92 C
2009
8.0 C
-1.43 C
2010
9.0 C
-0.42 C
2011
8.5 C
-0.91 C
2012
11.5 C
+2.13 C
2013
8.4 C
-1.01 C
2014
8.4 C
-1.06 C
2015
10.3 C
+0.84 C
The fitted trend in annual mean temperature here over 1920 to 2015 is 0.1 C (-0.1 to 0.2) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.2 to 0.3) per decade. The slope is a straight line fitted to 47 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Cedar Butte
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.1 C (-0.1 to 0.2) per decade
0.1 F (-0.2 to 0.3) per decade
1920 to 2015
47
Not clearly different from zero
Mean daily maximum
-0.03 C (-0.21 to 0.14) per decade
-0.1 F (-0.4 to 0.3) per decade
1920 to 2015
47
Not clearly different from zero
Mean daily minimum
0.14 C (0.01 to 0.26) per decade
0.24 F (0.02 to 0.47) per decade
1920 to 2015
47
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
1918 to 2017
Yearly extremes at Cedar Butte: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
46.7 C (116.1 F)
2006
41.1 C (106.0 F)
65
Coldest night (TNn)
-34.4 C (-29.9 F)
1989
-27.8 C (-18.0 F)
65
Wettest day (Rx1day)
108.0 mm (4.3 in)
1971
48.9 mm (1.9 in)
72
Wettest five days (Rx5day)
140.7 mm (5.5 in)
1971
65.8 mm (2.6 in)
72
Longest dry spell (CDD)
70 days
1952
34 days
72
Hottest day (TXx)
The hottest day of the year at Cedar Butte, 1918 to 2017. The record is 46.7 C (116.1 F) in 2006, marked on the chart; the median year is 41.1 C (106.0 F).
Hottest day (TXx) at Cedar Butte by year
Year
Hottest day (TXx)
1918
34.4 C (93.9 F)
1919
26.7 C (80.1 F)
1920
41.1 C (106.0 F)
1921
40.6 C (105.1 F)
1922
10.0 C (50.0 F)
1951
n/a
1952
n/a
1953
n/a
1954
n/a
1955
n/a
1956
n/a
1957
n/a
1958
38.9 C (102.0 F)
1959
43.3 C (109.9 F)
1960
41.1 C (106.0 F)
1961
40.0 C (104.0 F)
1962
38.9 C (102.0 F)
1963
38.9 C (102.0 F)
1964
43.3 C (109.9 F)
1965
42.8 C (109.0 F)
1966
41.1 C (106.0 F)
1967
40.0 C (104.0 F)
1968
40.6 C (105.1 F)
1969
41.1 C (106.0 F)
1970
43.3 C (109.9 F)
1971
41.1 C (106.0 F)
1972
38.9 C (102.0 F)
1973
43.3 C (109.9 F)
1974
42.8 C (109.0 F)
1975
41.1 C (106.0 F)
1976
42.2 C (108.0 F)
1977
42.2 C (108.0 F)
1978
37.8 C (100.0 F)
1979
42.2 C (108.0 F)
1980
43.3 C (109.9 F)
1981
40.6 C (105.1 F)
1982
40.0 C (104.0 F)
1983
42.2 C (108.0 F)
1984
40.6 C (105.1 F)
1985
43.9 C (111.0 F)
1986
40.0 C (104.0 F)
1987
41.1 C (106.0 F)
1988
44.4 C (111.9 F)
1989
44.4 C (111.9 F)
1990
40.6 C (105.1 F)
1991
42.2 C (108.0 F)
1992
36.7 C (98.1 F)
1993
37.8 C (100.0 F)
1994
38.9 C (102.0 F)
1995
42.2 C (108.0 F)
1996
38.9 C (102.0 F)
1997
38.9 C (102.0 F)
1998
42.2 C (108.0 F)
1999
40.0 C (104.0 F)
2000
41.7 C (107.1 F)
2001
41.1 C (106.0 F)
2002
42.8 C (109.0 F)
2003
43.3 C (109.9 F)
2004
41.7 C (107.1 F)
2005
41.7 C (107.1 F)
2006
46.7 C (116.1 F)
2007
42.8 C (109.0 F)
2008
38.9 C (102.0 F)
2009
37.8 C (100.0 F)
2010
41.1 C (106.0 F)
2011
39.4 C (102.9 F)
2012
43.9 C (111.0 F)
2013
39.4 C (102.9 F)
2014
40.0 C (104.0 F)
2015
38.3 C (100.9 F)
2016
40.6 C (105.1 F)
2017
36.1 C (97.0 F)
Coldest night (TNn)
The coldest night of the year at Cedar Butte, 1918 to 2017. The record is -34.4 C (-29.9 F) in 1989, marked on the chart; the median year is -27.8 C (-18.0 F).
Coldest night (TNn) at Cedar Butte by year
Year
Coldest night (TNn)
1918
-6.7 C (19.9 F)
1919
-29.4 C (-20.9 F)
1920
-30.0 C (-22.0 F)
1921
-23.9 C (-11.0 F)
1922
-31.1 C (-24.0 F)
1951
n/a
1952
n/a
1953
n/a
1954
n/a
1955
n/a
1956
n/a
1957
n/a
1958
-26.1 C (-15.0 F)
1959
-26.1 C (-15.0 F)
1960
-28.3 C (-18.9 F)
1961
-22.8 C (-9.0 F)
1962
-31.7 C (-25.1 F)
1963
-31.1 C (-24.0 F)
1964
-28.3 C (-18.9 F)
1965
-23.9 C (-11.0 F)
1966
-31.7 C (-25.1 F)
1967
-30.0 C (-22.0 F)
1968
-29.4 C (-20.9 F)
1969
-26.1 C (-15.0 F)
1970
-30.0 C (-22.0 F)
1971
-28.9 C (-20.0 F)
1972
-30.6 C (-23.1 F)
1973
-28.3 C (-18.9 F)
1974
-26.7 C (-16.1 F)
1975
-27.8 C (-18.0 F)
1976
-27.2 C (-17.0 F)
1977
-28.3 C (-18.9 F)
1978
-27.2 C (-17.0 F)
1979
-29.4 C (-20.9 F)
1980
-25.6 C (-14.1 F)
1981
-22.2 C (-8.0 F)
1982
-27.8 C (-18.0 F)
1983
-32.8 C (-27.0 F)
1984
-27.2 C (-17.0 F)
1985
-27.8 C (-18.0 F)
1986
-25.6 C (-14.1 F)
1987
-20.0 C (-4.0 F)
1988
-32.2 C (-26.0 F)
1989
-34.4 C (-29.9 F)
1990
-33.3 C (-27.9 F)
1991
-23.3 C (-9.9 F)
1992
-25.6 C (-14.1 F)
1993
-29.4 C (-20.9 F)
1994
-25.0 C (-13.0 F)
1995
-25.0 C (-13.0 F)
1996
-33.9 C (-29.0 F)
1997
-28.3 C (-18.9 F)
1998
-27.8 C (-18.0 F)
1999
-27.2 C (-17.0 F)
2000
-26.7 C (-16.1 F)
2001
-24.4 C (-11.9 F)
2002
-20.0 C (-4.0 F)
2003
-27.8 C (-18.0 F)
2004
-24.4 C (-11.9 F)
2005
-26.7 C (-16.1 F)
2006
-27.8 C (-18.0 F)
2007
-29.4 C (-20.9 F)
2008
-26.7 C (-16.1 F)
2009
-24.4 C (-11.9 F)
2010
-28.3 C (-18.9 F)
2011
-26.7 C (-16.1 F)
2012
-23.3 C (-9.9 F)
2013
-27.8 C (-18.0 F)
2014
-28.3 C (-18.9 F)
2015
-23.9 C (-11.0 F)
2016
-26.7 C (-16.1 F)
2017
-22.8 C (-9.0 F)
Wettest day (Rx1day)
The wettest day of the year at Cedar Butte, 1918 to 2017. The record is 108.0 mm (4.3 in) in 1971, marked on the chart; the median year is 48.9 mm (1.9 in).
Wettest day (Rx1day) at Cedar Butte by year
Year
Wettest day (Rx1day)
1918
27.9 mm (1.1 in)
1919
30.5 mm (1.2 in)
1920
71.1 mm (2.8 in)
1921
50.8 mm (2.0 in)
1922
24.6 mm (1.0 in)
1951
54.4 mm (2.1 in)
1952
30.5 mm (1.2 in)
1953
49.5 mm (1.9 in)
1954
44.5 mm (1.8 in)
1955
38.4 mm (1.5 in)
1956
69.1 mm (2.7 in)
1957
61.0 mm (2.4 in)
1958
29.2 mm (1.1 in)
1959
31.5 mm (1.2 in)
1960
61.0 mm (2.4 in)
1961
52.8 mm (2.1 in)
1962
60.7 mm (2.4 in)
1963
53.8 mm (2.1 in)
1964
27.7 mm (1.1 in)
1965
71.1 mm (2.8 in)
1966
76.5 mm (3.0 in)
1967
64.0 mm (2.5 in)
1968
71.1 mm (2.8 in)
1969
27.9 mm (1.1 in)
1970
38.9 mm (1.5 in)
1971
108.0 mm (4.3 in)
1972
21.6 mm (0.9 in)
1973
66.5 mm (2.6 in)
1974
19.6 mm (0.8 in)
1975
31.5 mm (1.2 in)
1976
33.8 mm (1.3 in)
1977
39.6 mm (1.6 in)
1978
57.2 mm (2.3 in)
1979
75.9 mm (3.0 in)
1980
44.5 mm (1.8 in)
1981
37.6 mm (1.5 in)
1982
46.7 mm (1.8 in)
1983
71.9 mm (2.8 in)
1984
35.6 mm (1.4 in)
1985
22.9 mm (0.9 in)
1986
50.3 mm (2.0 in)
1987
38.4 mm (1.5 in)
1988
77.5 mm (3.1 in)
1989
42.4 mm (1.7 in)
1990
95.8 mm (3.8 in)
1991
67.3 mm (2.6 in)
1992
41.1 mm (1.6 in)
1993
38.9 mm (1.5 in)
1994
103.6 mm (4.1 in)
1995
57.2 mm (2.3 in)
1996
52.6 mm (2.1 in)
1997
71.9 mm (2.8 in)
1998
47.0 mm (1.9 in)
1999
38.1 mm (1.5 in)
2000
40.6 mm (1.6 in)
2001
52.8 mm (2.1 in)
2002
36.3 mm (1.4 in)
2003
48.5 mm (1.9 in)
2004
39.6 mm (1.6 in)
2005
51.8 mm (2.0 in)
2006
50.3 mm (2.0 in)
2007
57.4 mm (2.3 in)
2008
50.5 mm (2.0 in)
2009
35.1 mm (1.4 in)
2010
38.1 mm (1.5 in)
2011
49.5 mm (1.9 in)
2012
34.3 mm (1.4 in)
2013
46.7 mm (1.8 in)
2014
49.3 mm (1.9 in)
2015
61.2 mm (2.4 in)
2016
40.6 mm (1.6 in)
2017
66.0 mm (2.6 in)
Wettest five days (Rx5day)
The wettest five days of the year at Cedar Butte, 1918 to 2017. The record is 140.7 mm (5.5 in) in 1971, marked on the chart; the median year is 65.8 mm (2.6 in).
Wettest five days (Rx5day) at Cedar Butte by year
Year
Wettest five days (Rx5day)
1918
30.5 mm (1.2 in)
1919
53.4 mm (2.1 in)
1920
76.2 mm (3.0 in)
1921
76.5 mm (3.0 in)
1922
24.6 mm (1.0 in)
1951
63.8 mm (2.5 in)
1952
56.1 mm (2.2 in)
1953
63.0 mm (2.5 in)
1954
54.4 mm (2.1 in)
1955
61.4 mm (2.4 in)
1956
105.2 mm (4.1 in)
1957
72.5 mm (2.9 in)
1958
43.9 mm (1.7 in)
1959
63.3 mm (2.5 in)
1960
62.8 mm (2.5 in)
1961
65.2 mm (2.6 in)
1962
92.4 mm (3.6 in)
1963
80.3 mm (3.2 in)
1964
39.4 mm (1.6 in)
1965
73.6 mm (2.9 in)
1966
99.6 mm (3.9 in)
1967
115.6 mm (4.6 in)
1968
106.7 mm (4.2 in)
1969
42.4 mm (1.7 in)
1970
70.9 mm (2.8 in)
1971
140.7 mm (5.5 in)
1972
61.0 mm (2.4 in)
1973
81.0 mm (3.2 in)
1974
47.6 mm (1.9 in)
1975
59.4 mm (2.3 in)
1976
51.1 mm (2.0 in)
1977
52.1 mm (2.1 in)
1978
88.1 mm (3.5 in)
1979
132.8 mm (5.2 in)
1980
63.6 mm (2.5 in)
1981
54.4 mm (2.1 in)
1982
89.2 mm (3.5 in)
1983
110.8 mm (4.4 in)
1984
66.3 mm (2.6 in)
1985
41.7 mm (1.6 in)
1986
76.0 mm (3.0 in)
1987
63.0 mm (2.5 in)
1988
94.0 mm (3.7 in)
1989
104.6 mm (4.1 in)
1990
121.2 mm (4.8 in)
1991
78.0 mm (3.1 in)
1992
49.2 mm (1.9 in)
1993
61.0 mm (2.4 in)
1994
107.4 mm (4.2 in)
1995
74.1 mm (2.9 in)
1996
107.2 mm (4.2 in)
1997
89.4 mm (3.5 in)
1998
81.3 mm (3.2 in)
1999
72.6 mm (2.9 in)
2000
49.8 mm (2.0 in)
2001
61.7 mm (2.4 in)
2002
58.7 mm (2.3 in)
2003
64.1 mm (2.5 in)
2004
51.8 mm (2.0 in)
2005
81.0 mm (3.2 in)
2006
58.4 mm (2.3 in)
2007
57.7 mm (2.3 in)
2008
74.3 mm (2.9 in)
2009
60.5 mm (2.4 in)
2010
62.5 mm (2.5 in)
2011
104.6 mm (4.1 in)
2012
59.2 mm (2.3 in)
2013
83.0 mm (3.3 in)
2014
73.2 mm (2.9 in)
2015
79.9 mm (3.1 in)
2016
57.9 mm (2.3 in)
2017
94.0 mm (3.7 in)
Longest dry spell (CDD)
The longest dry spell of the year at Cedar Butte, 1918 to 2017. The record is 70 days in 1952, marked on the chart; the median year is 34 days.
Longest dry spell (CDD) at Cedar Butte by year
Year
Longest dry spell (CDD)
1918
25 days
1919
44 days
1920
27 days
1921
37 days
1922
19 days
1951
31 days
1952
70 days
1953
30 days
1954
35 days
1955
43 days
1956
37 days
1957
45 days
1958
30 days
1959
33 days
1960
29 days
1961
42 days
1962
44 days
1963
43 days
1964
45 days
1965
23 days
1966
25 days
1967
44 days
1968
34 days
1969
37 days
1970
23 days
1971
26 days
1972
47 days
1973
32 days
1974
42 days
1975
31 days
1976
47 days
1977
28 days
1978
39 days
1979
61 days
1980
35 days
1981
47 days
1982
27 days
1983
63 days
1984
47 days
1985
44 days
1986
34 days
1987
34 days
1988
41 days
1989
31 days
1990
44 days
1991
32 days
1992
34 days
1993
26 days
1994
39 days
1995
34 days
1996
39 days
1997
59 days
1998
39 days
1999
30 days
2000
26 days
2001
31 days
2002
27 days
2003
22 days
2004
51 days
2005
31 days
2006
43 days
2007
40 days
2008
25 days
2009
38 days
2010
28 days
2011
27 days
2012
33 days
2013
27 days
2014
33 days
2015
36 days
2016
20 days
2017
27 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
47 years with a frost
Across 47 years with a frost, the median last spring frost at Cedar Butte falls on 11 May and the median first autumn frost on 2 October, which leaves a median of 145 days between them.
Fitted over all years, the growing season changes by -0.8 days per decade at this station.
Frost dates and growing season at Cedar Butte
Measure
Median, all years
Earliest period
Recent period (1979 to 2015)
Recent against earliest
Fitted trend
Last spring frost
11 May
n/a
11 May
n/a
+0.6 days per decade
First autumn frost
2 October
n/a
3 October
n/a
-0.2 days per decade
Growing days
145 days
n/a
145 days
n/a
-0.8 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
61 years, 1952 to 2015
A day with at least 48.1 mm (1.9 in) of rain is expected about once in 2 years. A day with at least 109.3 mm (4.3 in) of rain is expected about once in 100 years.
Rainfall return levels at Cedar Butte: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
48.1 mm (1.9 in)
5 years
65.2 mm (2.6 in)
10 years
76.2 mm (3.0 in)
25 years
89.8 mm (3.5 in)
50 years
99.7 mm (3.9 in)
100 years
109.3 mm (4.3 in)
Longer than the 61 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, 61 years of values from 1952 to 2015.
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: 108.0 mm (4.3 in) in 1971; 103.6 mm (4.1 in) in 1994; 95.8 mm (3.8 in) in 1990.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Cedar Butte, at 1975. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1975 ran 0.3 C (0.6 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at Cedar Butte, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1975
-0.3
-0.6
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 Cedar Butte standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Cedar Butte 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.