Record envelope, standing records and threshold days for Selby (USC00397545), South Dakota, United States, with 117 years of record.
Key Facts for Selby
Selby (USC00397545) is a weather station in South Dakota, United States at 45.51 latitude and -100.04 longitude, 582 m (1,908 ft) above sea level.
The station reports from 1907 to 2023, 117 years of record.
1,464 records set at Selby still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Selby set a daily record low maximum temperature of -0.6 C (30.9 F) on 22 April 2023.
About the Station
Location: South Dakota, United States, 45.51 latitude, -100.04 longitude.
Elevation: 582 m (1,908 ft).
Period of record: 1907 to 2023, 117 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 Selby. 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 Selby, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
17.2 C (63.0 F)
-40.6 C (-41.1 F)
n/a
n/a
Feb
19.4 C (66.9 F)
-37.8 C (-36.0 F)
n/a
n/a
Mar
28.3 C (82.9 F)
-33.9 C (-29.0 F)
n/a
n/a
Apr
36.1 C (97.0 F)
-19.4 C (-2.9 F)
n/a
n/a
May
37.8 C (100.0 F)
-7.8 C (18.0 F)
n/a
n/a
Jun
42.8 C (109.0 F)
-1.1 C (30.0 F)
n/a
n/a
Jul
44.4 C (111.9 F)
3.3 C (37.9 F)
n/a
n/a
Aug
42.2 C (108.0 F)
-1.7 C (28.9 F)
n/a
n/a
Sep
40.0 C (104.0 F)
-8.3 C (17.1 F)
n/a
n/a
Oct
35.0 C (95.0 F)
-18.9 C (-2.0 F)
n/a
n/a
Nov
25.0 C (77.0 F)
-28.9 C (-20.0 F)
n/a
n/a
Dec
19.4 C (66.9 F)
-37.8 C (-36.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Selby still stand. 1985 holds the most, with 43.
Standing records at Selby by the year they were set
Year set
Standing records
1907
2
1908
26
1909
21
1910
40
1911
39
1912
29
1913
15
1962
13
1963
29
1964
26
1965
28
1966
30
1967
21
1968
19
1969
31
1970
9
1971
16
1972
29
1973
22
1974
20
1975
17
1976
17
1977
23
1978
17
1979
28
1980
17
1981
22
1982
18
1983
20
1984
21
1985
43
1986
13
1987
30
1988
29
1989
32
1990
24
1991
40
1992
42
1993
20
1994
17
1995
17
1996
32
1997
23
1998
12
1999
19
2000
21
2001
13
2002
20
2003
24
2004
17
2005
19
2006
24
2007
17
2008
9
2009
19
2010
3
2011
7
2012
28
2013
14
2014
20
2015
20
2016
13
2017
14
2018
16
2019
14
2020
24
2021
32
2022
15
2023
3
All-Time Record Progression
11 new records
11 all-time records were set at Selby between 20 March 1982 and 16 July 2006. Each dot is a new record.
When Selby set new all-time records
Date
Kind
Detail
1982-03-20
Record daily snowfall
Record daily snowfall 35.6 cm (14.0 in)
1989-12-22
Record low maximum temperature
Record low maximum temperature -29.4 C (-20.9 F)
1996-12-15
Record snow depth
Record snow depth 76.2 cm (30.0 in)
1996-12-16
Record snow depth
Record snow depth 78.7 cm (31.0 in)
1996-12-17
Record snow depth
Record snow depth 83.8 cm (33.0 in)
1996-12-23
Record snow depth
Record snow depth 94.0 cm (37.0 in)
1996-12-24
Record snow depth
Record snow depth 96.5 cm (38.0 in)
1996-12-29
Record snow depth
Record snow depth 99.1 cm (39.0 in)
1997-01-05
Record snow depth
Record snow depth 111.8 cm (44.0 in)
1997-01-09
Record snow depth
Record snow depth 116.8 cm (46.0 in)
2006-07-16
Record high maximum temperature
Record high maximum temperature 44.4 C (111.9 F)
Wettest Day of Each Month
Jun: 104.1 mm (4.1 in)
The wettest day on record for each calendar month at Selby. The most was 104.1 mm (4.1 in) on 15 June 1976.
Record daily precipitation for each month at Selby
Month
Record daily precipitation (mm)
Date
Jan
23.1 mm (0.9 in)
4 January 1997
Feb
23.6 mm (0.9 in)
26 February 2009
Mar
35.6 mm (1.4 in)
20 March 1982
Apr
61.2 mm (2.4 in)
28 April 1989
May
87.4 mm (3.4 in)
18 May 2018
Jun
104.1 mm (4.1 in)
15 June 1976
Jul
77.5 mm (3.1 in)
9 July 2013
Aug
88.1 mm (3.5 in)
18 August 1990
Sep
48.8 mm (1.9 in)
20 September 1996
Oct
68.1 mm (2.7 in)
5 October 2013
Nov
40.1 mm (1.6 in)
3 November 1956
Dec
30.5 mm (1.2 in)
11 December 1909
Period of Record Coverage
1907 to 2023
Complete yearUnder 90 percent of days
69 years of record at Selby, 1907 to 2023. 8 years have data for under 90 percent of days and are left out of rankings: 1907, 1908, 1909, 1910, 1913, 1962, 2010, 2023.
Cooler than the station meanWarmer than the station mean
One stripe for each of 58 complete years at Selby, 1909 to 2022. Blue stripes are years cooler than the station's own mean of 6.4 C (43.5 F); red stripes are warmer. The coolest year was 1996, at 3.8 C (38.9 F), and the warmest was 1987, at 8.4 C (47.1 F). The strongest colour marks a difference of 2.6 C (4.7 F).
Annual mean temperature at Selby as warming stripes, 1909 to 2022
Year
Annual mean temperature
Difference from the station mean
1909
5.7 C
-0.68 C
1911
6.1 C
-0.26 C
1912
5.8 C
-0.63 C
1963
8.4 C
+2.01 C
1964
7.3 C
+0.91 C
1965
6.1 C
-0.28 C
1966
6.5 C
+0.07 C
1967
7.0 C
+0.64 C
1968
6.8 C
+0.46 C
1969
6.5 C
+0.11 C
1972
4.8 C
-1.56 C
1973
7.0 C
+0.65 C
1974
6.5 C
+0.09 C
1975
5.6 C
-0.78 C
1976
6.8 C
+0.44 C
1977
6.4 C
+0.05 C
1978
4.6 C
-1.80 C
1979
4.3 C
-2.08 C
1980
6.9 C
+0.52 C
1981
7.5 C
+1.09 C
1982
4.9 C
-1.45 C
1983
6.2 C
-0.20 C
1984
6.0 C
-0.37 C
1985
4.6 C
-1.78 C
1986
6.4 C
+0.06 C
1987
8.4 C
+2.03 C
1988
7.3 C
+0.89 C
1989
5.7 C
-0.72 C
1990
7.2 C
+0.84 C
1991
7.2 C
+0.83 C
1992
6.6 C
+0.23 C
1993
4.7 C
-1.70 C
1994
5.6 C
-0.80 C
1995
5.8 C
-0.60 C
1996
3.8 C
-2.55 C
1997
6.0 C
-0.42 C
1998
7.6 C
+1.21 C
2000
6.4 C
+0.05 C
2001
6.8 C
+0.45 C
2002
6.7 C
+0.30 C
2003
6.7 C
+0.27 C
2004
7.2 C
+0.82 C
2005
7.8 C
+1.41 C
2006
8.3 C
+1.95 C
2007
6.7 C
+0.33 C
2009
5.4 C
-1.03 C
2011
5.7 C
-0.68 C
2012
8.3 C
+1.88 C
2013
5.3 C
-1.10 C
2014
5.1 C
-1.31 C
2015
7.6 C
+1.21 C
2016
8.1 C
+1.69 C
2017
6.9 C
+0.50 C
2018
5.5 C
-0.90 C
2019
4.3 C
-2.09 C
2020
7.0 C
+0.61 C
2021
8.0 C
+1.59 C
2022
5.7 C
-0.70 C
The fitted trend in annual mean temperature here over 1909 to 2022 is 0.04 C (-0.08 to 0.16) 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 58 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Selby
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.04 C (-0.08 to 0.16) per decade
0.1 F (-0.1 to 0.3) per decade
1909 to 2022
58
Not clearly different from zero
Mean daily maximum
-0.1 C (-0.2 to 0.1) per decade
-0.1 F (-0.4 to 0.2) per decade
1909 to 2022
58
Not clearly different from zero
Mean daily minimum
0.14 C (0.03 to 0.25) per decade
0.2 F (0.1 to 0.4) per decade
1909 to 2022
58
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
1907 to 2023
Yearly extremes at Selby: 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)
2006
38.3 C (100.9 F)
69
Coldest night (TNn)
-40.6 C (-41.1 F)
1912
-31.7 C (-25.1 F)
69
Wettest day (Rx1day)
104.1 mm (4.1 in)
1976
42.3 mm (1.7 in)
78
Wettest five days (Rx5day)
123.3 mm (4.9 in)
1964
62.9 mm (2.5 in)
78
Longest dry spell (CDD)
96 days
2006
33 days
78
Hottest day (TXx)
The hottest day of the year at Selby, 1907 to 2023. The record is 44.4 C (111.9 F) in 2006, marked on the chart; the median year is 38.3 C (100.9 F).
Hottest day (TXx) at Selby by year
Year
Hottest day (TXx)
1907
26.1 C (79.0 F)
1908
38.3 C (100.9 F)
1909
35.6 C (96.1 F)
1910
39.4 C (102.9 F)
1911
39.4 C (102.9 F)
1912
38.9 C (102.0 F)
1913
38.3 C (100.9 F)
1953
n/a
1954
n/a
1955
n/a
1956
n/a
1957
n/a
1958
n/a
1959
n/a
1960
n/a
1961
n/a
1962
37.2 C (99.0 F)
1963
39.4 C (102.9 F)
1964
38.3 C (100.9 F)
1965
38.3 C (100.9 F)
1966
41.1 C (106.0 F)
1967
38.3 C (100.9 F)
1968
37.2 C (99.0 F)
1969
39.4 C (102.9 F)
1970
39.4 C (102.9 F)
1971
40.0 C (104.0 F)
1972
36.7 C (98.1 F)
1973
43.3 C (109.9 F)
1974
38.9 C (102.0 F)
1975
41.7 C (107.1 F)
1976
40.6 C (105.1 F)
1977
41.7 C (107.1 F)
1978
38.9 C (102.0 F)
1979
35.6 C (96.1 F)
1980
38.9 C (102.0 F)
1981
36.1 C (97.0 F)
1982
38.9 C (102.0 F)
1983
37.2 C (99.0 F)
1984
36.7 C (98.1 F)
1985
40.6 C (105.1 F)
1986
35.6 C (96.1 F)
1987
40.0 C (104.0 F)
1988
42.8 C (109.0 F)
1989
40.6 C (105.1 F)
1990
34.4 C (93.9 F)
1991
38.3 C (100.9 F)
1992
36.7 C (98.1 F)
1993
35.0 C (95.0 F)
1994
36.1 C (97.0 F)
1995
35.6 C (96.1 F)
1996
36.7 C (98.1 F)
1997
35.6 C (96.1 F)
1998
37.2 C (99.0 F)
1999
39.4 C (102.9 F)
2000
36.7 C (98.1 F)
2001
38.9 C (102.0 F)
2002
41.7 C (107.1 F)
2003
40.6 C (105.1 F)
2004
36.7 C (98.1 F)
2005
39.4 C (102.9 F)
2006
44.4 C (111.9 F)
2007
40.0 C (104.0 F)
2008
35.6 C (96.1 F)
2009
35.6 C (96.1 F)
2010
41.1 C (106.0 F)
2011
37.2 C (99.0 F)
2012
39.4 C (102.9 F)
2013
38.3 C (100.9 F)
2014
35.0 C (95.0 F)
2015
38.3 C (100.9 F)
2016
38.3 C (100.9 F)
2017
38.9 C (102.0 F)
2018
36.7 C (98.1 F)
2019
36.1 C (97.0 F)
2020
35.0 C (95.0 F)
2021
38.3 C (100.9 F)
2022
38.3 C (100.9 F)
2023
30.0 C (86.0 F)
Coldest night (TNn)
The coldest night of the year at Selby, 1907 to 2023. The record is -40.6 C (-41.1 F) in 1912, marked on the chart; the median year is -31.7 C (-25.1 F).
Coldest night (TNn) at Selby by year
Year
Coldest night (TNn)
1907
-15.6 C (3.9 F)
1908
-30.6 C (-23.1 F)
1909
-33.3 C (-27.9 F)
1910
-33.3 C (-27.9 F)
1911
-31.1 C (-24.0 F)
1912
-40.6 C (-41.1 F)
1913
-32.8 C (-27.0 F)
1953
n/a
1954
n/a
1955
n/a
1956
n/a
1957
n/a
1958
n/a
1959
n/a
1960
n/a
1961
n/a
1962
-27.8 C (-18.0 F)
1963
-33.9 C (-29.0 F)
1964
-30.0 C (-22.0 F)
1965
-32.8 C (-27.0 F)
1966
-36.7 C (-34.1 F)
1967
-37.8 C (-36.0 F)
1968
-35.0 C (-31.0 F)
1969
-30.6 C (-23.1 F)
1970
-33.3 C (-27.9 F)
1971
-34.4 C (-29.9 F)
1972
-36.7 C (-34.1 F)
1973
-31.1 C (-24.0 F)
1974
-31.7 C (-25.1 F)
1975
-28.3 C (-18.9 F)
1976
-32.2 C (-26.0 F)
1977
-31.1 C (-24.0 F)
1978
-32.8 C (-27.0 F)
1979
-34.4 C (-29.9 F)
1980
-29.4 C (-20.9 F)
1981
-28.9 C (-20.0 F)
1982
-34.4 C (-29.9 F)
1983
-37.8 C (-36.0 F)
1984
-32.2 C (-26.0 F)
1985
-32.8 C (-27.0 F)
1986
-31.1 C (-24.0 F)
1987
-21.7 C (-7.1 F)
1988
-35.0 C (-31.0 F)
1989
-35.6 C (-32.1 F)
1990
-35.0 C (-31.0 F)
1991
-28.9 C (-20.0 F)
1992
-30.6 C (-23.1 F)
1993
-31.7 C (-25.1 F)
1994
-37.8 C (-36.0 F)
1995
-31.7 C (-25.1 F)
1996
-37.2 C (-35.0 F)
1997
-31.7 C (-25.1 F)
1998
-33.9 C (-29.0 F)
1999
-32.2 C (-26.0 F)
2000
-31.1 C (-24.0 F)
2001
-27.8 C (-18.0 F)
2002
-26.7 C (-16.1 F)
2003
-30.6 C (-23.1 F)
2004
-30.0 C (-22.0 F)
2005
-33.3 C (-27.9 F)
2006
-26.7 C (-16.1 F)
2007
-30.6 C (-23.1 F)
2008
-30.0 C (-22.0 F)
2009
-36.7 C (-34.1 F)
2010
-25.0 C (-13.0 F)
2011
-30.0 C (-22.0 F)
2012
-23.3 C (-9.9 F)
2013
-30.6 C (-23.1 F)
2014
-29.4 C (-20.9 F)
2015
-27.8 C (-18.0 F)
2016
-30.6 C (-23.1 F)
2017
-33.3 C (-27.9 F)
2018
-33.9 C (-29.0 F)
2019
-32.2 C (-26.0 F)
2020
-26.7 C (-16.1 F)
2021
-33.9 C (-29.0 F)
2022
-31.1 C (-24.0 F)
2023
-28.9 C (-20.0 F)
Wettest day (Rx1day)
The wettest day of the year at Selby, 1907 to 2023. The record is 104.1 mm (4.1 in) in 1976, marked on the chart; the median year is 42.3 mm (1.7 in).
Wettest day (Rx1day) at Selby by year
Year
Wettest day (Rx1day)
1907
11.9 mm (0.5 in)
1908
50.8 mm (2.0 in)
1909
59.9 mm (2.4 in)
1910
40.6 mm (1.6 in)
1911
42.2 mm (1.7 in)
1912
40.9 mm (1.6 in)
1913
36.8 mm (1.4 in)
1953
84.6 mm (3.3 in)
1954
38.4 mm (1.5 in)
1955
42.4 mm (1.7 in)
1956
60.2 mm (2.4 in)
1957
44.2 mm (1.7 in)
1958
45.7 mm (1.8 in)
1959
36.6 mm (1.4 in)
1960
26.7 mm (1.1 in)
1961
45.2 mm (1.8 in)
1962
30.5 mm (1.2 in)
1963
27.2 mm (1.1 in)
1964
68.1 mm (2.7 in)
1965
40.6 mm (1.6 in)
1966
26.2 mm (1.0 in)
1967
29.0 mm (1.1 in)
1968
48.3 mm (1.9 in)
1969
35.8 mm (1.4 in)
1970
29.2 mm (1.1 in)
1971
52.1 mm (2.1 in)
1972
39.1 mm (1.5 in)
1973
36.3 mm (1.4 in)
1974
29.5 mm (1.2 in)
1975
33.3 mm (1.3 in)
1976
104.1 mm (4.1 in)
1977
33.3 mm (1.3 in)
1978
67.3 mm (2.6 in)
1979
33.8 mm (1.3 in)
1980
59.2 mm (2.3 in)
1981
44.5 mm (1.8 in)
1982
52.1 mm (2.1 in)
1983
31.0 mm (1.2 in)
1984
36.1 mm (1.4 in)
1985
43.9 mm (1.7 in)
1986
75.7 mm (3.0 in)
1987
51.1 mm (2.0 in)
1988
32.8 mm (1.3 in)
1989
61.2 mm (2.4 in)
1990
88.1 mm (3.5 in)
1991
38.4 mm (1.5 in)
1992
46.0 mm (1.8 in)
1993
42.2 mm (1.7 in)
1994
33.8 mm (1.3 in)
1995
36.8 mm (1.4 in)
1996
48.8 mm (1.9 in)
1997
49.5 mm (1.9 in)
1998
78.2 mm (3.1 in)
1999
34.5 mm (1.4 in)
2000
70.6 mm (2.8 in)
2001
36.6 mm (1.4 in)
2002
35.1 mm (1.4 in)
2003
27.2 mm (1.1 in)
2004
45.0 mm (1.8 in)
2005
43.7 mm (1.7 in)
2006
45.2 mm (1.8 in)
2007
47.0 mm (1.9 in)
2008
58.9 mm (2.3 in)
2009
41.7 mm (1.6 in)
2010
30.7 mm (1.2 in)
2011
41.1 mm (1.6 in)
2012
38.6 mm (1.5 in)
2013
77.5 mm (3.1 in)
2014
47.0 mm (1.9 in)
2015
62.5 mm (2.5 in)
2016
34.3 mm (1.4 in)
2017
48.3 mm (1.9 in)
2018
87.4 mm (3.4 in)
2019
54.9 mm (2.2 in)
2020
32.5 mm (1.3 in)
2021
45.7 mm (1.8 in)
2022
56.1 mm (2.2 in)
2023
22.4 mm (0.9 in)
Wettest five days (Rx5day)
The wettest five days of the year at Selby, 1907 to 2023. The record is 123.3 mm (4.9 in) in 1964, marked on the chart; the median year is 62.9 mm (2.5 in).
Wettest five days (Rx5day) at Selby by year
Year
Wettest five days (Rx5day)
1907
12.7 mm (0.5 in)
1908
70.4 mm (2.8 in)
1909
85.6 mm (3.4 in)
1910
57.6 mm (2.3 in)
1911
54.6 mm (2.1 in)
1912
40.1 mm (1.6 in)
1913
40.6 mm (1.6 in)
1953
113.8 mm (4.5 in)
1954
60.7 mm (2.4 in)
1955
60.9 mm (2.4 in)
1956
78.3 mm (3.1 in)
1957
69.1 mm (2.7 in)
1958
64.0 mm (2.5 in)
1959
41.9 mm (1.6 in)
1960
44.3 mm (1.7 in)
1961
50.0 mm (2.0 in)
1962
75.9 mm (3.0 in)
1963
38.6 mm (1.5 in)
1964
123.3 mm (4.9 in)
1965
56.9 mm (2.2 in)
1966
45.3 mm (1.8 in)
1967
47.7 mm (1.9 in)
1968
94.8 mm (3.7 in)
1969
76.4 mm (3.0 in)
1970
58.7 mm (2.3 in)
1971
63.8 mm (2.5 in)
1972
67.6 mm (2.7 in)
1973
50.3 mm (2.0 in)
1974
40.7 mm (1.6 in)
1975
60.4 mm (2.4 in)
1976
106.1 mm (4.2 in)
1977
62.0 mm (2.4 in)
1978
77.8 mm (3.1 in)
1979
61.5 mm (2.4 in)
1980
99.4 mm (3.9 in)
1981
67.1 mm (2.6 in)
1982
102.2 mm (4.0 in)
1983
68.3 mm (2.7 in)
1984
50.8 mm (2.0 in)
1985
53.4 mm (2.1 in)
1986
110.7 mm (4.4 in)
1987
59.9 mm (2.4 in)
1988
35.6 mm (1.4 in)
1989
117.9 mm (4.6 in)
1990
88.1 mm (3.5 in)
1991
64.0 mm (2.5 in)
1992
64.2 mm (2.5 in)
1993
81.1 mm (3.2 in)
1994
72.5 mm (2.9 in)
1995
57.4 mm (2.3 in)
1996
84.6 mm (3.3 in)
1997
61.5 mm (2.4 in)
1998
86.9 mm (3.4 in)
1999
64.5 mm (2.5 in)
2000
73.6 mm (2.9 in)
2001
61.5 mm (2.4 in)
2002
47.0 mm (1.9 in)
2003
45.5 mm (1.8 in)
2004
56.9 mm (2.2 in)
2005
72.9 mm (2.9 in)
2006
48.8 mm (1.9 in)
2007
81.1 mm (3.2 in)
2008
59.9 mm (2.4 in)
2009
43.0 mm (1.7 in)
2010
37.3 mm (1.5 in)
2011
70.9 mm (2.8 in)
2012
51.6 mm (2.0 in)
2013
97.4 mm (3.8 in)
2014
68.1 mm (2.7 in)
2015
90.1 mm (3.5 in)
2016
72.2 mm (2.8 in)
2017
110.8 mm (4.4 in)
2018
87.4 mm (3.4 in)
2019
54.9 mm (2.2 in)
2020
51.1 mm (2.0 in)
2021
58.5 mm (2.3 in)
2022
68.1 mm (2.7 in)
2023
22.4 mm (0.9 in)
Longest dry spell (CDD)
The longest dry spell of the year at Selby, 1907 to 2023. The record is 96 days in 2006, marked on the chart; the median year is 33 days.
Longest dry spell (CDD) at Selby by year
Year
Longest dry spell (CDD)
1907
44 days
1908
17 days
1909
33 days
1910
40 days
1911
39 days
1912
82 days
1913
19 days
1953
26 days
1954
30 days
1955
30 days
1956
41 days
1957
23 days
1958
24 days
1959
51 days
1960
31 days
1961
51 days
1962
22 days
1963
27 days
1964
58 days
1965
39 days
1966
34 days
1967
47 days
1968
66 days
1969
39 days
1970
32 days
1971
36 days
1972
26 days
1973
33 days
1974
32 days
1975
25 days
1976
41 days
1977
30 days
1978
31 days
1979
39 days
1980
31 days
1981
89 days
1982
29 days
1983
41 days
1984
26 days
1985
30 days
1986
31 days
1987
38 days
1988
39 days
1989
34 days
1990
26 days
1991
48 days
1992
38 days
1993
24 days
1994
27 days
1995
27 days
1996
24 days
1997
18 days
1998
29 days
1999
61 days
2000
27 days
2001
33 days
2002
56 days
2003
27 days
2004
35 days
2005
31 days
2006
96 days
2007
43 days
2008
46 days
2009
53 days
2010
20 days
2011
39 days
2012
49 days
2013
35 days
2014
28 days
2015
31 days
2016
18 days
2017
42 days
2018
39 days
2019
18 days
2020
58 days
2021
50 days
2022
51 days
2023
25 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 Selby falls on 13 May and the median first autumn frost on 27 September, which leaves a median of 137 days between them.
Fitted over all years, the growing season changes by +2.3 days per decade at this station.
Frost dates and growing season at Selby
Measure
Median, all years
Earliest period
Recent period (1990 to 2022)
Recent against earliest
Fitted trend
Last spring frost
13 May
n/a
13 May
n/a
-0.8 days per decade
First autumn frost
27 September
n/a
29 September
n/a
+1.5 days per decade
Growing days
137 days
n/a
140 days
n/a
+2.3 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
72 years, 1909 to 2022
A day with at least 43.1 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 110.5 mm (4.4 in) of rain is expected about once in 100 years.
Rainfall return levels at Selby: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
43.1 mm (1.7 in)
5 years
57.2 mm (2.3 in)
10 years
68.0 mm (2.7 in)
25 years
83.4 mm (3.3 in)
50 years
96.3 mm (3.8 in)
100 years
110.5 mm (4.4 in)
Longer than the 72 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, 72 years of values from 1909 to 2022.
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 1976; 88.1 mm (3.5 in) in 1990; 87.4 mm (3.4 in) in 2018.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Climate Twins
2006 to 2022 against 1961 to 1990
Over 2006 to 2022, Selby had a mean temperature of 6.5 C (43.7 F) and 477.0 mm (18.8 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Tyler (United States, 337 km away), Flandreau (United States, 316 km away) and Mc Intosh 6 SE (United States, 103 km away).
Climate twins of Selby: stations whose 1961 to 1990 climate is closest to its 2006 to 2022 climate
Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.
Download the Data
Data for Selby standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Selby 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 2026-10-12 (12 October 2026). Records are computed by this site and are not official.