Record envelope, standing records and threshold days for Ft Supply 3SE (USC00343304), Oklahoma, United States, with 73 years of record.
Key Facts for Ft Supply 3SE
Ft Supply 3SE (USC00343304) is a weather station in Oklahoma, United States at 36.54 latitude and -99.53 longitude, 619 m (2,030 ft) above sea level.
The station reports from 1940 to 2012, 73 years of record.
1,464 records set at Ft Supply 3SE still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Ft Supply 3SE set a daily record high minimum temperature of 15.0 C (59.0 F) on 29 March 2012.
About the Station
Location: Oklahoma, United States, 36.54 latitude, -99.53 longitude.
Elevation: 619 m (2,030 ft).
Period of record: 1940 to 2012, 73 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 Ft Supply 3SE. 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 Ft Supply 3SE, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
30.0 C (86.0 F)
-27.8 C (-18.0 F)
n/a
n/a
Feb
33.3 C (91.9 F)
-24.4 C (-11.9 F)
n/a
n/a
Mar
35.0 C (95.0 F)
-23.3 C (-9.9 F)
n/a
n/a
Apr
37.2 C (99.0 F)
-8.3 C (17.1 F)
n/a
n/a
May
40.6 C (105.1 F)
-2.8 C (27.0 F)
n/a
n/a
Jun
43.3 C (109.9 F)
1.7 C (35.1 F)
n/a
n/a
Jul
43.3 C (109.9 F)
7.2 C (45.0 F)
n/a
n/a
Aug
42.8 C (109.0 F)
4.4 C (39.9 F)
n/a
n/a
Sep
42.2 C (108.0 F)
-1.7 C (28.9 F)
n/a
n/a
Oct
36.7 C (98.1 F)
-9.4 C (15.1 F)
n/a
n/a
Nov
32.8 C (91.0 F)
-17.2 C (1.0 F)
n/a
n/a
Dec
30.0 C (86.0 F)
-25.0 C (-13.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Ft Supply 3SE still stand. 1953 holds the most, with 47.
Standing records at Ft Supply 3SE by the year they were set
Year set
Standing records
1940
24
1941
14
1942
17
1943
30
1944
10
1945
10
1946
24
1947
18
1948
19
1949
8
1950
30
1951
31
1952
26
1953
47
1954
33
1955
28
1956
34
1957
12
1958
13
1959
14
1960
21
1961
6
1962
27
1963
29
1964
14
1965
25
1966
31
1967
26
1968
16
1969
14
1970
35
1971
18
1972
21
1973
11
1974
8
1975
18
1976
13
1977
12
1978
25
1979
23
1980
15
1981
23
1982
14
1983
26
1984
15
1985
9
1986
19
1987
16
1988
14
1989
29
1990
14
1991
15
1992
25
1993
12
1994
10
1995
24
1996
20
1997
8
1998
27
1999
12
2000
31
2001
18
2002
19
2003
25
2004
26
2005
18
2006
36
2007
17
2008
11
2009
31
2010
8
2011
35
2012
7
All-Time Record Progression
8 new records
8 all-time records were set at Ft Supply 3SE between 29 August 1974 and 28 March 2009. Each dot is a new record.
When Ft Supply 3SE set new all-time records
Date
Kind
Detail
1974-08-29
Record daily precipitation
Record daily precipitation 110.7 mm (4.4 in)
1979-01-02
Record low maximum temperature
Record low maximum temperature -13.3 C (8.1 F)
1979-05-10
Record daily precipitation
Record daily precipitation 167.1 mm (6.6 in)
1982-02-05
Record low maximum temperature
Record low maximum temperature -13.9 C (7.0 F)
1983-12-20
Record low maximum temperature
Record low maximum temperature -15.0 C (5.0 F)
1983-12-22
Record low maximum temperature
Record low maximum temperature -16.7 C (1.9 F)
1988-03-17
Record daily snowfall
Record daily snowfall 38.1 cm (15.0 in)
2009-03-28
Record daily snowfall
Record daily snowfall 55.9 cm (22.0 in)
Wettest Day of Each Month
May: 167.1 mm (6.6 in)
The wettest day on record for each calendar month at Ft Supply 3SE. The most was 167.1 mm (6.6 in) on 10 May 1979.
Record daily precipitation for each month at Ft Supply 3SE
Month
Record daily precipitation (mm)
Date
Jan
47.2 mm (1.9 in)
5 January 2005
Feb
84.8 mm (3.3 in)
3 February 2012
Mar
51.8 mm (2.0 in)
31 March 2007
Apr
53.8 mm (2.1 in)
22 April 1944
May
167.1 mm (6.6 in)
10 May 1979
Jun
145.0 mm (5.7 in)
13 June 2002
Jul
125.5 mm (4.9 in)
20 July 1986
Aug
110.7 mm (4.4 in)
29 August 1974
Sep
72.4 mm (2.9 in)
28 September 1945
Oct
132.6 mm (5.2 in)
10 October 1985
Nov
58.4 mm (2.3 in)
1 November 1981
Dec
64.5 mm (2.5 in)
30 December 2006
Period of Record Coverage
1940 to 2012
Complete yearUnder 90 percent of days
73 years of record at Ft Supply 3SE, 1940 to 2012. 11 years have data for under 90 percent of days and are left out of rankings: 1940, 1945, 1948, 1973, 1974, 1975, 1976, 1984 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 58 complete years at Ft Supply 3SE, 1941 to 2011. Blue stripes are years cooler than the station's own mean of 14.5 C (58.1 F); red stripes are warmer. The coolest year was 1993, at 12.8 C (55.0 F), and the warmest was 1954, at 17.0 C (62.5 F). The strongest colour marks a difference of 2.5 C (4.5 F).
Annual mean temperature at Ft Supply 3SE as warming stripes, 1941 to 2011
Year
Annual mean temperature
Difference from the station mean
1941
14.5 C
+0.06 C
1942
14.2 C
-0.24 C
1943
14.6 C
+0.14 C
1944
14.6 C
+0.10 C
1946
15.7 C
+1.24 C
1947
14.2 C
-0.32 C
1948
13.8 C
-0.70 C
1949
14.0 C
-0.45 C
1950
15.2 C
+0.69 C
1951
14.7 C
+0.19 C
1952
15.6 C
+1.10 C
1953
16.4 C
+1.93 C
1954
17.0 C
+2.48 C
1955
15.7 C
+1.19 C
1956
16.3 C
+1.84 C
1957
14.4 C
-0.05 C
1958
14.5 C
0.00 C
1959
14.6 C
+0.12 C
1960
14.1 C
-0.40 C
1962
15.6 C
+1.09 C
1963
16.1 C
+1.61 C
1964
15.0 C
+0.49 C
1965
15.4 C
+0.91 C
1966
14.5 C
-0.01 C
1967
15.3 C
+0.84 C
1968
14.7 C
+0.18 C
1969
14.9 C
+0.44 C
1970
15.2 C
+0.74 C
1971
15.0 C
+0.56 C
1972
14.6 C
+0.15 C
1977
15.3 C
+0.80 C
1978
13.3 C
-1.22 C
1979
12.9 C
-1.62 C
1980
14.3 C
-0.18 C
1981
14.9 C
+0.44 C
1982
13.2 C
-1.23 C
1985
13.5 C
-1.00 C
1986
14.6 C
+0.12 C
1988
13.2 C
-1.26 C
1991
14.4 C
-0.04 C
1992
13.9 C
-0.60 C
1993
12.8 C
-1.68 C
1994
14.4 C
-0.05 C
1995
13.6 C
-0.85 C
1996
13.6 C
-0.90 C
1998
14.3 C
-0.13 C
1999
14.5 C
0.00 C
2000
14.0 C
-0.52 C
2001
14.6 C
+0.10 C
2002
13.6 C
-0.85 C
2003
13.5 C
-0.95 C
2004
13.5 C
-0.95 C
2005
13.8 C
-0.71 C
2006
14.9 C
+0.46 C
2007
13.6 C
-0.88 C
2009
13.3 C
-1.16 C
2010
13.8 C
-0.64 C
2011
14.3 C
-0.16 C
The annual mean temperature here has fallen by 0.2 C (0.1 to 0.3) per decade over 1941 to 2011. In Fahrenheit: 0.4 F (0.2 to 0.6) per decade. The slope is a straight line fitted to 58 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Ft Supply 3SE
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.2 C (-0.3 to -0.1) per decade
-0.4 F (-0.6 to -0.2) per decade
1941 to 2011
58
Fall
Mean daily maximum
-0.12 C (-0.26 to 0.02) per decade
-0.22 F (-0.48 to 0.04) per decade
1941 to 2011
58
Not clearly different from zero
Mean daily minimum
-0.3 C (-0.4 to -0.2) per decade
-0.6 F (-0.7 to -0.4) per decade
1941 to 2011
58
Fall
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
1940 to 2012
Yearly extremes at Ft Supply 3SE: 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)
1953
40.6 C (105.1 F)
73
Coldest night (TNn)
-27.8 C (-18.0 F)
1947
-18.9 C (-2.0 F)
73
Wettest day (Rx1day)
167.1 mm (6.6 in)
1979
55.9 mm (2.2 in)
73
Wettest five days (Rx5day)
194.1 mm (7.6 in)
1998
86.9 mm (3.4 in)
73
Longest dry spell (CDD)
89 days
1955
38 days
73
Hottest day (TXx)
The hottest day of the year at Ft Supply 3SE, 1940 to 2012. The record is 43.3 C (109.9 F) in 1953, marked on the chart; the median year is 40.6 C (105.1 F).
Hottest day (TXx) at Ft Supply 3SE by year
Year
Hottest day (TXx)
1940
42.8 C (109.0 F)
1941
38.3 C (100.9 F)
1942
40.0 C (104.0 F)
1943
41.7 C (107.1 F)
1944
40.0 C (104.0 F)
1945
40.0 C (104.0 F)
1946
42.2 C (108.0 F)
1947
42.2 C (108.0 F)
1948
41.1 C (106.0 F)
1949
38.9 C (102.0 F)
1950
42.2 C (108.0 F)
1951
42.2 C (108.0 F)
1952
41.1 C (106.0 F)
1953
43.3 C (109.9 F)
1954
42.8 C (109.0 F)
1955
38.9 C (102.0 F)
1956
41.1 C (106.0 F)
1957
38.9 C (102.0 F)
1958
40.6 C (105.1 F)
1959
39.4 C (102.9 F)
1960
38.9 C (102.0 F)
1961
37.2 C (99.0 F)
1962
41.1 C (106.0 F)
1963
40.6 C (105.1 F)
1964
42.8 C (109.0 F)
1965
38.3 C (100.9 F)
1966
40.0 C (104.0 F)
1967
39.4 C (102.9 F)
1968
41.7 C (107.1 F)
1969
41.7 C (107.1 F)
1970
41.1 C (106.0 F)
1971
40.6 C (105.1 F)
1972
38.3 C (100.9 F)
1973
39.4 C (102.9 F)
1974
40.6 C (105.1 F)
1975
38.3 C (100.9 F)
1976
40.0 C (104.0 F)
1977
39.4 C (102.9 F)
1978
43.3 C (109.9 F)
1979
38.3 C (100.9 F)
1980
43.3 C (109.9 F)
1981
42.8 C (109.0 F)
1982
42.2 C (108.0 F)
1983
40.6 C (105.1 F)
1984
41.1 C (106.0 F)
1985
40.6 C (105.1 F)
1986
41.7 C (107.1 F)
1987
37.8 C (100.0 F)
1988
39.4 C (102.9 F)
1989
36.7 C (98.1 F)
1990
39.4 C (102.9 F)
1991
39.4 C (102.9 F)
1992
38.3 C (100.9 F)
1993
40.6 C (105.1 F)
1994
42.2 C (108.0 F)
1995
40.6 C (105.1 F)
1996
41.7 C (107.1 F)
1997
33.9 C (93.0 F)
1998
41.7 C (107.1 F)
1999
41.7 C (107.1 F)
2000
41.7 C (107.1 F)
2001
41.1 C (106.0 F)
2002
39.4 C (102.9 F)
2003
41.7 C (107.1 F)
2004
38.3 C (100.9 F)
2005
37.8 C (100.0 F)
2006
42.2 C (108.0 F)
2007
38.9 C (102.0 F)
2008
40.6 C (105.1 F)
2009
43.3 C (109.9 F)
2010
41.1 C (106.0 F)
2011
43.3 C (109.9 F)
2012
31.7 C (89.1 F)
Coldest night (TNn)
The coldest night of the year at Ft Supply 3SE, 1940 to 2012. The record is -27.8 C (-18.0 F) in 1947, marked on the chart; the median year is -18.9 C (-2.0 F).
Coldest night (TNn) at Ft Supply 3SE by year
Year
Coldest night (TNn)
1940
-17.2 C (1.0 F)
1941
-8.9 C (16.0 F)
1942
-25.0 C (-13.0 F)
1943
-25.6 C (-14.1 F)
1944
-17.8 C (0.0 F)
1945
-15.6 C (3.9 F)
1946
-15.6 C (3.9 F)
1947
-27.8 C (-18.0 F)
1948
-23.3 C (-9.9 F)
1949
-21.1 C (-6.0 F)
1950
-18.9 C (-2.0 F)
1951
-24.4 C (-11.9 F)
1952
-15.6 C (3.9 F)
1953
-13.9 C (7.0 F)
1954
-16.7 C (1.9 F)
1955
-14.4 C (6.1 F)
1956
-16.1 C (3.0 F)
1957
-16.7 C (1.9 F)
1958
-17.8 C (0.0 F)
1959
-26.1 C (-15.0 F)
1960
-20.0 C (-4.0 F)
1961
-15.0 C (5.0 F)
1962
-22.8 C (-9.0 F)
1963
-22.8 C (-9.0 F)
1964
-18.9 C (-2.0 F)
1965
-17.8 C (0.0 F)
1966
-22.2 C (-8.0 F)
1967
-18.3 C (-0.9 F)
1968
-18.3 C (-0.9 F)
1969
-15.0 C (5.0 F)
1970
-17.8 C (0.0 F)
1971
-18.9 C (-2.0 F)
1972
-22.8 C (-9.0 F)
1973
-18.9 C (-2.0 F)
1974
-24.4 C (-11.9 F)
1975
-17.2 C (1.0 F)
1976
-18.9 C (-2.0 F)
1977
-20.0 C (-4.0 F)
1978
-19.4 C (-2.9 F)
1979
-21.1 C (-6.0 F)
1980
-15.6 C (3.9 F)
1981
-21.7 C (-7.1 F)
1982
-22.2 C (-8.0 F)
1983
-21.7 C (-7.1 F)
1984
-11.1 C (12.0 F)
1985
-17.2 C (1.0 F)
1986
-21.1 C (-6.0 F)
1987
-18.9 C (-2.0 F)
1988
-25.6 C (-14.1 F)
1989
-25.0 C (-13.0 F)
1990
-19.4 C (-2.9 F)
1991
-15.6 C (3.9 F)
1992
-13.3 C (8.1 F)
1993
-18.9 C (-2.0 F)
1994
-17.8 C (0.0 F)
1995
-15.0 C (5.0 F)
1996
-22.8 C (-9.0 F)
1997
-15.6 C (3.9 F)
1998
-21.7 C (-7.1 F)
1999
-18.3 C (-0.9 F)
2000
-18.9 C (-2.0 F)
2001
-17.2 C (1.0 F)
2002
-17.2 C (1.0 F)
2003
-21.1 C (-6.0 F)
2004
-23.9 C (-11.0 F)
2005
-22.2 C (-8.0 F)
2006
-16.1 C (3.0 F)
2007
-22.2 C (-8.0 F)
2008
-17.8 C (0.0 F)
2009
-20.0 C (-4.0 F)
2010
-21.1 C (-6.0 F)
2011
-24.4 C (-11.9 F)
2012
-13.3 C (8.1 F)
Wettest day (Rx1day)
The wettest day of the year at Ft Supply 3SE, 1940 to 2012. The record is 167.1 mm (6.6 in) in 1979, marked on the chart; the median year is 55.9 mm (2.2 in).
Wettest day (Rx1day) at Ft Supply 3SE by year
Year
Wettest day (Rx1day)
1940
27.9 mm (1.1 in)
1941
83.3 mm (3.3 in)
1942
71.1 mm (2.8 in)
1943
52.6 mm (2.1 in)
1944
65.3 mm (2.6 in)
1945
72.4 mm (2.9 in)
1946
45.2 mm (1.8 in)
1947
55.9 mm (2.2 in)
1948
53.3 mm (2.1 in)
1949
64.8 mm (2.6 in)
1950
80.0 mm (3.1 in)
1951
83.8 mm (3.3 in)
1952
25.9 mm (1.0 in)
1953
40.4 mm (1.6 in)
1954
27.7 mm (1.1 in)
1955
52.1 mm (2.1 in)
1956
36.6 mm (1.4 in)
1957
82.6 mm (3.3 in)
1958
72.1 mm (2.8 in)
1959
62.2 mm (2.4 in)
1960
61.5 mm (2.4 in)
1961
50.0 mm (2.0 in)
1962
73.7 mm (2.9 in)
1963
59.4 mm (2.3 in)
1964
40.4 mm (1.6 in)
1965
84.1 mm (3.3 in)
1966
37.6 mm (1.5 in)
1967
110.5 mm (4.4 in)
1968
50.8 mm (2.0 in)
1969
40.1 mm (1.6 in)
1970
41.9 mm (1.6 in)
1971
81.5 mm (3.2 in)
1972
43.7 mm (1.7 in)
1973
48.3 mm (1.9 in)
1974
110.7 mm (4.4 in)
1975
61.5 mm (2.4 in)
1976
37.8 mm (1.5 in)
1977
61.0 mm (2.4 in)
1978
46.2 mm (1.8 in)
1979
167.1 mm (6.6 in)
1980
39.6 mm (1.6 in)
1981
58.4 mm (2.3 in)
1982
65.5 mm (2.6 in)
1983
50.8 mm (2.0 in)
1984
43.7 mm (1.7 in)
1985
132.6 mm (5.2 in)
1986
125.5 mm (4.9 in)
1987
41.1 mm (1.6 in)
1988
51.3 mm (2.0 in)
1989
63.5 mm (2.5 in)
1990
25.9 mm (1.0 in)
1991
40.4 mm (1.6 in)
1992
40.6 mm (1.6 in)
1993
61.7 mm (2.4 in)
1994
51.3 mm (2.0 in)
1995
47.0 mm (1.9 in)
1996
54.9 mm (2.2 in)
1997
41.7 mm (1.6 in)
1998
101.6 mm (4.0 in)
1999
53.1 mm (2.1 in)
2000
118.4 mm (4.7 in)
2001
85.9 mm (3.4 in)
2002
145.0 mm (5.7 in)
2003
77.5 mm (3.1 in)
2004
55.1 mm (2.2 in)
2005
78.2 mm (3.1 in)
2006
64.5 mm (2.5 in)
2007
76.7 mm (3.0 in)
2008
49.0 mm (1.9 in)
2009
55.4 mm (2.2 in)
2010
67.8 mm (2.7 in)
2011
38.6 mm (1.5 in)
2012
84.8 mm (3.3 in)
Wettest five days (Rx5day)
The wettest five days of the year at Ft Supply 3SE, 1940 to 2012. The record is 194.1 mm (7.6 in) in 1998, marked on the chart; the median year is 86.9 mm (3.4 in).
Wettest five days (Rx5day) at Ft Supply 3SE by year
Year
Wettest five days (Rx5day)
1940
52.1 mm (2.1 in)
1941
117.3 mm (4.6 in)
1942
86.9 mm (3.4 in)
1943
57.4 mm (2.3 in)
1944
86.1 mm (3.4 in)
1945
92.0 mm (3.6 in)
1946
105.9 mm (4.2 in)
1947
123.8 mm (4.9 in)
1948
71.1 mm (2.8 in)
1949
124.4 mm (4.9 in)
1950
149.3 mm (5.9 in)
1951
154.0 mm (6.1 in)
1952
53.5 mm (2.1 in)
1953
47.0 mm (1.9 in)
1954
67.4 mm (2.7 in)
1955
66.1 mm (2.6 in)
1956
38.9 mm (1.5 in)
1957
115.3 mm (4.5 in)
1958
107.9 mm (4.2 in)
1959
70.3 mm (2.8 in)
1960
86.4 mm (3.4 in)
1961
61.2 mm (2.4 in)
1962
116.6 mm (4.6 in)
1963
92.4 mm (3.6 in)
1964
82.6 mm (3.3 in)
1965
87.4 mm (3.4 in)
1966
58.7 mm (2.3 in)
1967
110.5 mm (4.4 in)
1968
97.6 mm (3.8 in)
1969
57.4 mm (2.3 in)
1970
41.9 mm (1.6 in)
1971
84.8 mm (3.3 in)
1972
65.0 mm (2.6 in)
1973
65.3 mm (2.6 in)
1974
159.7 mm (6.3 in)
1975
97.0 mm (3.8 in)
1976
70.1 mm (2.8 in)
1977
92.0 mm (3.6 in)
1978
92.8 mm (3.7 in)
1979
167.1 mm (6.6 in)
1980
82.9 mm (3.3 in)
1981
73.7 mm (2.9 in)
1982
90.9 mm (3.6 in)
1983
64.3 mm (2.5 in)
1984
44.0 mm (1.7 in)
1985
149.6 mm (5.9 in)
1986
126.3 mm (5.0 in)
1987
103.1 mm (4.1 in)
1988
77.7 mm (3.1 in)
1989
114.0 mm (4.5 in)
1990
41.6 mm (1.6 in)
1991
76.5 mm (3.0 in)
1992
71.0 mm (2.8 in)
1993
93.2 mm (3.7 in)
1994
51.6 mm (2.0 in)
1995
57.9 mm (2.3 in)
1996
114.9 mm (4.5 in)
1997
58.7 mm (2.3 in)
1998
194.1 mm (7.6 in)
1999
85.6 mm (3.4 in)
2000
144.0 mm (5.7 in)
2001
136.2 mm (5.4 in)
2002
175.5 mm (6.9 in)
2003
137.2 mm (5.4 in)
2004
106.7 mm (4.2 in)
2005
193.3 mm (7.6 in)
2006
69.1 mm (2.7 in)
2007
97.8 mm (3.9 in)
2008
76.2 mm (3.0 in)
2009
88.7 mm (3.5 in)
2010
74.1 mm (2.9 in)
2011
48.5 mm (1.9 in)
2012
89.9 mm (3.5 in)
Longest dry spell (CDD)
The longest dry spell of the year at Ft Supply 3SE, 1940 to 2012. The record is 89 days in 1955, marked on the chart; the median year is 38 days.
Longest dry spell (CDD) at Ft Supply 3SE by year
Year
Longest dry spell (CDD)
1940
24 days
1941
18 days
1942
30 days
1943
36 days
1944
20 days
1945
49 days
1946
32 days
1947
57 days
1948
35 days
1949
50 days
1950
62 days
1951
29 days
1952
62 days
1953
39 days
1954
66 days
1955
89 days
1956
61 days
1957
36 days
1958
52 days
1959
39 days
1960
39 days
1961
26 days
1962
22 days
1963
36 days
1964
34 days
1965
52 days
1966
69 days
1967
24 days
1968
39 days
1969
44 days
1970
70 days
1971
47 days
1972
79 days
1973
39 days
1974
39 days
1975
36 days
1976
62 days
1977
46 days
1978
46 days
1979
63 days
1980
28 days
1981
62 days
1982
47 days
1983
33 days
1984
49 days
1985
35 days
1986
38 days
1987
21 days
1988
54 days
1989
36 days
1990
37 days
1991
33 days
1992
35 days
1993
26 days
1994
32 days
1995
75 days
1996
74 days
1997
34 days
1998
37 days
1999
56 days
2000
54 days
2001
46 days
2002
24 days
2003
35 days
2004
31 days
2005
27 days
2006
40 days
2007
32 days
2008
27 days
2009
43 days
2010
22 days
2011
37 days
2012
22 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
58 years with a frost
Across 58 years with a frost, the median last spring frost at Ft Supply 3SE falls on 14 April and the median first autumn frost on 22 October, which leaves a median of 190 days between them.
Fitted over all years, the growing season changes by -3.9 days per decade at this station.
Frost dates and growing season at Ft Supply 3SE
Measure
Median, all years
Earliest period
Recent period (1971 to 2011)
Recent against earliest
Fitted trend
Last spring frost
14 April
n/a
15 April
n/a
+1.8 days per decade
First autumn frost
22 October
n/a
20 October
n/a
-2.2 days per decade
Growing days
190 days
n/a
184 days
n/a
-3.9 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
68 years, 1941 to 2011
A day with at least 57.9 mm (2.3 in) of rain is expected about once in 2 years. A day with at least 171.0 mm (6.7 in) of rain is expected about once in 100 years.
Rainfall return levels at Ft Supply 3SE: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
57.9 mm (2.3 in)
5 years
81.4 mm (3.2 in)
10 years
99.3 mm (3.9 in)
25 years
125.2 mm (4.9 in)
50 years
147.0 mm (5.8 in)
100 years
171.0 mm (6.7 in)
Longer than the 68 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, 68 years of values from 1941 to 2011.
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: 167.1 mm (6.6 in) in 1979; 145.0 mm (5.7 in) in 2002; 132.6 mm (5.2 in) in 1985.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Ft Supply 3SE, at 1998. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1998 ran 0.4 C (0.7 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at Ft Supply 3SE, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1998
-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 Ft Supply 3SE standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Ft Supply 3SE 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.