Record envelope, standing records and threshold days for Reydon 2SSE (USC00347579), Oklahoma, United States, with 67 years of record.
Key Facts for Reydon 2SSE
Reydon 2SSE (USC00347579) is a weather station in Oklahoma, United States at 35.63 latitude and -99.91 longitude, 727 m (2,385 ft) above sea level.
The station reports from 1941 to 2007, 67 years of record.
1,464 records set at Reydon 2SSE still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Reydon 2SSE set a monthly record snow depth of 12.7 cm (5.0 in) on 14 April 2007.
About the Station
Location: Oklahoma, United States, 35.63 latitude, -99.91 longitude.
Elevation: 727 m (2,385 ft).
Period of record: 1941 to 2007, 67 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 Reydon 2SSE. 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 Reydon 2SSE, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
29.4 C (84.9 F)
-26.7 C (-16.1 F)
n/a
n/a
Feb
31.7 C (89.1 F)
-23.9 C (-11.0 F)
n/a
n/a
Mar
36.7 C (98.1 F)
-21.1 C (-6.0 F)
n/a
n/a
Apr
38.3 C (100.9 F)
-7.2 C (19.0 F)
n/a
n/a
May
40.6 C (105.1 F)
-1.1 C (30.0 F)
n/a
n/a
Jun
42.8 C (109.0 F)
4.4 C (39.9 F)
n/a
n/a
Jul
43.3 C (109.9 F)
8.3 C (46.9 F)
n/a
n/a
Aug
42.8 C (109.0 F)
6.7 C (44.1 F)
n/a
n/a
Sep
41.1 C (106.0 F)
-3.3 C (26.1 F)
n/a
n/a
Oct
37.8 C (100.0 F)
-10.6 C (12.9 F)
n/a
n/a
Nov
32.2 C (90.0 F)
-14.4 C (6.1 F)
n/a
n/a
Dec
31.7 C (89.1 F)
-25.6 C (-14.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Reydon 2SSE still stand. 1994 holds the most, with 49.
Standing records at Reydon 2SSE by the year they were set
Year set
Standing records
1941
3
1942
19
1943
24
1944
16
1945
22
1946
22
1947
24
1948
27
1949
17
1950
34
1951
27
1952
27
1953
46
1954
41
1955
31
1956
30
1957
17
1958
4
1959
25
1960
27
1961
12
1962
25
1963
26
1964
20
1965
28
1966
27
1967
25
1968
14
1969
23
1970
27
1971
15
1972
26
1973
12
1974
15
1975
13
1976
10
1977
6
1978
29
1979
15
1980
16
1981
29
1982
20
1983
26
1984
22
1985
25
1986
19
1987
12
1988
14
1989
31
1990
25
1991
11
1992
15
1993
20
1994
49
1995
38
1996
41
1997
16
1998
24
1999
14
2000
32
2001
6
2002
21
2003
21
2004
23
2005
24
2006
18
2007
1
All-Time Record Progression
6 new records
6 all-time records were set at Reydon 2SSE between 9 June 1981 and 6 July 1996. Each dot is a new record.
When Reydon 2SSE set new all-time records
Date
Kind
Detail
1981-06-09
Record high maximum temperature
Record high maximum temperature 42.8 C (109.0 F)
1983-12-19
Record low maximum temperature
Record low maximum temperature -13.9 C (7.0 F)
1986-07-28
Record high maximum temperature
Record high maximum temperature 43.3 C (109.9 F)
1989-12-22
Record low maximum temperature
Record low maximum temperature -15.0 C (5.0 F)
1990-12-22
Record low maximum temperature
Record low maximum temperature -16.1 C (3.0 F)
1996-07-06
Record high minimum temperature
Record high minimum temperature 27.2 C (81.0 F)
Wettest Day of Each Month
Apr: 138.2 mm (5.4 in)
The wettest day on record for each calendar month at Reydon 2SSE. The most was 138.2 mm (5.4 in) on 30 April 1954.
Record daily precipitation for each month at Reydon 2SSE
Month
Record daily precipitation (mm)
Date
Jan
55.9 mm (2.2 in)
30 January 1999
Feb
65.5 mm (2.6 in)
22 February 1985
Mar
63.8 mm (2.5 in)
2 March 1988
Apr
138.2 mm (5.4 in)
30 April 1954
May
118.1 mm (4.6 in)
7 May 1949
Jun
119.4 mm (4.7 in)
30 June 1981
Jul
85.1 mm (3.4 in)
24 July 1975
Aug
94.5 mm (3.7 in)
30 August 2003
Sep
83.8 mm (3.3 in)
21 September 1985
Oct
134.6 mm (5.3 in)
7 October 1946
Nov
65.3 mm (2.6 in)
1 November 1998
Dec
56.1 mm (2.2 in)
15 December 1984
Period of Record Coverage
1941 to 2007
Complete yearUnder 90 percent of days
67 years of record at Reydon 2SSE, 1941 to 2007. 26 years have data for under 90 percent of days and are left out of rankings: 1941, 1951, 1952, 1956, 1958, 1980, 1982, 1983 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 38 complete years at Reydon 2SSE, 1943 to 2003. Blue stripes are years cooler than the station's own mean of 14.8 C (58.6 F); red stripes are warmer. The coolest year was 1960, at 13.9 C (57.0 F), and the warmest was 1954, at 16.7 C (62.1 F). The strongest colour marks a difference of 1.9 C (3.4 F).
Annual mean temperature at Reydon 2SSE as warming stripes, 1943 to 2003
Year
Annual mean temperature
Difference from the station mean
1943
14.5 C
-0.28 C
1944
14.2 C
-0.65 C
1945
14.1 C
-0.70 C
1946
15.0 C
+0.17 C
1947
14.1 C
-0.75 C
1948
14.0 C
-0.77 C
1950
14.8 C
-0.02 C
1951
14.2 C
-0.63 C
1953
16.3 C
+1.49 C
1954
16.7 C
+1.90 C
1955
15.0 C
+0.21 C
1957
14.8 C
-0.04 C
1960
13.9 C
-0.90 C
1961
14.1 C
-0.67 C
1962
15.2 C
+0.41 C
1963
15.9 C
+1.08 C
1964
15.1 C
+0.27 C
1966
14.4 C
-0.45 C
1967
15.1 C
+0.34 C
1968
14.0 C
-0.79 C
1969
14.7 C
-0.13 C
1971
14.8 C
+0.02 C
1973
14.4 C
-0.39 C
1974
14.9 C
+0.07 C
1975
13.9 C
-0.87 C
1976
14.4 C
-0.36 C
1977
15.4 C
+0.63 C
1978
14.3 C
-0.50 C
1981
15.8 C
+0.96 C
1985
14.4 C
-0.38 C
1987
15.1 C
+0.30 C
1988
15.1 C
+0.28 C
1989
14.6 C
-0.22 C
1990
15.8 C
+0.95 C
1995
15.0 C
+0.18 C
1998
15.4 C
+0.64 C
2000
14.8 C
+0.02 C
2003
14.4 C
-0.38 C
The fitted trend in annual mean temperature here over 1943 to 2003 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 (-0.1 to 0.3) per decade. The slope is a straight line fitted to 38 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Reydon 2SSE
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 (-0.1 to 0.3) per decade
1943 to 2003
38
Not clearly different from zero
Mean daily maximum
-0.02 C (-0.21 to 0.16) per decade
-0.04 F (-0.37 to 0.29) per decade
1943 to 2003
38
Not clearly different from zero
Mean daily minimum
0.14 C (0.02 to 0.27) per decade
0.26 F (0.03 to 0.48) per decade
1943 to 2003
38
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
1941 to 2007
Yearly extremes at Reydon 2SSE: 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)
1986
39.4 C (102.9 F)
67
Coldest night (TNn)
-26.7 C (-16.1 F)
1942
-17.2 C (1.0 F)
67
Wettest day (Rx1day)
138.2 mm (5.4 in)
1954
63.5 mm (2.5 in)
67
Wettest five days (Rx5day)
211.4 mm (8.3 in)
1954
86.4 mm (3.4 in)
67
Longest dry spell (CDD)
88 days
1955
40 days
67
Hottest day (TXx)
The hottest day of the year at Reydon 2SSE, 1941 to 2007. The record is 43.3 C (109.9 F) in 1986, marked on the chart; the median year is 39.4 C (102.9 F).
Hottest day (TXx) at Reydon 2SSE by year
Year
Hottest day (TXx)
1941
26.7 C (80.1 F)
1942
36.7 C (98.1 F)
1943
40.6 C (105.1 F)
1944
39.4 C (102.9 F)
1945
38.9 C (102.0 F)
1946
40.6 C (105.1 F)
1947
40.0 C (104.0 F)
1948
39.4 C (102.9 F)
1949
37.8 C (100.0 F)
1950
38.9 C (102.0 F)
1951
40.6 C (105.1 F)
1952
41.1 C (106.0 F)
1953
42.2 C (108.0 F)
1954
42.2 C (108.0 F)
1955
40.6 C (105.1 F)
1956
41.7 C (107.1 F)
1957
40.6 C (105.1 F)
1958
38.3 C (100.9 F)
1959
38.3 C (100.9 F)
1960
37.8 C (100.0 F)
1961
37.2 C (99.0 F)
1962
38.9 C (102.0 F)
1963
39.4 C (102.9 F)
1964
42.2 C (108.0 F)
1965
38.3 C (100.9 F)
1966
39.4 C (102.9 F)
1967
37.8 C (100.0 F)
1968
38.9 C (102.0 F)
1969
41.7 C (107.1 F)
1970
42.2 C (108.0 F)
1971
39.4 C (102.9 F)
1972
37.2 C (99.0 F)
1973
38.9 C (102.0 F)
1974
40.0 C (104.0 F)
1975
36.7 C (98.1 F)
1976
40.0 C (104.0 F)
1977
38.9 C (102.0 F)
1978
41.1 C (106.0 F)
1979
36.1 C (97.0 F)
1980
41.1 C (106.0 F)
1981
42.8 C (109.0 F)
1982
38.9 C (102.0 F)
1983
39.4 C (102.9 F)
1984
40.0 C (104.0 F)
1985
39.4 C (102.9 F)
1986
43.3 C (109.9 F)
1987
38.3 C (100.9 F)
1988
41.1 C (106.0 F)
1989
41.7 C (107.1 F)
1990
38.3 C (100.9 F)
1991
37.8 C (100.0 F)
1992
38.3 C (100.9 F)
1993
39.4 C (102.9 F)
1994
42.8 C (109.0 F)
1995
41.1 C (106.0 F)
1996
42.8 C (109.0 F)
1997
33.9 C (93.0 F)
1998
42.8 C (109.0 F)
1999
40.0 C (104.0 F)
2000
41.1 C (106.0 F)
2001
39.4 C (102.9 F)
2002
37.8 C (100.0 F)
2003
41.7 C (107.1 F)
2004
37.2 C (99.0 F)
2005
36.7 C (98.1 F)
2006
38.9 C (102.0 F)
2007
27.8 C (82.0 F)
Coldest night (TNn)
The coldest night of the year at Reydon 2SSE, 1941 to 2007. The record is -26.7 C (-16.1 F) in 1942, marked on the chart; the median year is -17.2 C (1.0 F).
Coldest night (TNn) at Reydon 2SSE by year
Year
Coldest night (TNn)
1941
-8.3 C (17.1 F)
1942
-26.7 C (-16.1 F)
1943
-21.7 C (-7.1 F)
1944
-16.1 C (3.0 F)
1945
-13.9 C (7.0 F)
1946
-15.6 C (3.9 F)
1947
-22.2 C (-8.0 F)
1948
-21.1 C (-6.0 F)
1949
-21.7 C (-7.1 F)
1950
-18.9 C (-2.0 F)
1951
-23.9 C (-11.0 F)
1952
-13.3 C (8.1 F)
1953
-13.3 C (8.1 F)
1954
-15.0 C (5.0 F)
1955
-13.9 C (7.0 F)
1956
-12.8 C (9.0 F)
1957
-12.8 C (9.0 F)
1958
-17.8 C (0.0 F)
1959
-24.4 C (-11.9 F)
1960
-21.1 C (-6.0 F)
1961
-18.9 C (-2.0 F)
1962
-20.6 C (-5.1 F)
1963
-22.2 C (-8.0 F)
1964
-17.8 C (0.0 F)
1965
-16.7 C (1.9 F)
1966
-20.6 C (-5.1 F)
1967
-15.6 C (3.9 F)
1968
-17.8 C (0.0 F)
1969
-14.4 C (6.1 F)
1970
-16.1 C (3.0 F)
1971
-16.7 C (1.9 F)
1972
-18.3 C (-0.9 F)
1973
-21.1 C (-6.0 F)
1974
-16.7 C (1.9 F)
1975
-16.1 C (3.0 F)
1976
-18.3 C (-0.9 F)
1977
-18.9 C (-2.0 F)
1978
-17.2 C (1.0 F)
1979
-20.6 C (-5.1 F)
1980
-16.7 C (1.9 F)
1981
-20.0 C (-4.0 F)
1982
-18.3 C (-0.9 F)
1983
-23.9 C (-11.0 F)
1984
-26.7 C (-16.1 F)
1985
-20.6 C (-5.1 F)
1986
-16.7 C (1.9 F)
1987
-16.7 C (1.9 F)
1988
-22.8 C (-9.0 F)
1989
-25.6 C (-14.1 F)
1990
-19.4 C (-2.9 F)
1991
-13.3 C (8.1 F)
1992
-11.1 C (12.0 F)
1993
-10.6 C (12.9 F)
1994
-17.2 C (1.0 F)
1995
-15.0 C (5.0 F)
1996
-19.4 C (-2.9 F)
1997
-15.0 C (5.0 F)
1998
-18.3 C (-0.9 F)
1999
-13.3 C (8.1 F)
2000
-13.9 C (7.0 F)
2001
-11.1 C (12.0 F)
2002
-16.1 C (3.0 F)
2003
-16.1 C (3.0 F)
2004
-18.9 C (-2.0 F)
2005
-19.4 C (-2.9 F)
2006
-15.0 C (5.0 F)
2007
-3.3 C (26.1 F)
Wettest day (Rx1day)
The wettest day of the year at Reydon 2SSE, 1941 to 2007. The record is 138.2 mm (5.4 in) in 1954, marked on the chart; the median year is 63.5 mm (2.5 in).
Wettest day (Rx1day) at Reydon 2SSE by year
Year
Wettest day (Rx1day)
1941
8.9 mm (0.35 in)
1942
91.4 mm (3.6 in)
1943
41.9 mm (1.6 in)
1944
50.8 mm (2.0 in)
1945
53.3 mm (2.1 in)
1946
134.6 mm (5.3 in)
1947
69.9 mm (2.8 in)
1948
62.2 mm (2.4 in)
1949
118.1 mm (4.6 in)
1950
49.5 mm (1.9 in)
1951
76.2 mm (3.0 in)
1952
18.3 mm (0.7 in)
1953
50.8 mm (2.0 in)
1954
138.2 mm (5.4 in)
1955
67.3 mm (2.6 in)
1956
26.2 mm (1.0 in)
1957
63.5 mm (2.5 in)
1958
29.2 mm (1.1 in)
1959
64.8 mm (2.6 in)
1960
89.7 mm (3.5 in)
1961
46.0 mm (1.8 in)
1962
57.2 mm (2.3 in)
1963
73.4 mm (2.9 in)
1964
65.5 mm (2.6 in)
1965
80.0 mm (3.1 in)
1966
21.3 mm (0.8 in)
1967
69.9 mm (2.8 in)
1968
50.3 mm (2.0 in)
1969
45.7 mm (1.8 in)
1970
80.0 mm (3.1 in)
1971
72.9 mm (2.9 in)
1972
59.7 mm (2.4 in)
1973
54.6 mm (2.1 in)
1974
64.0 mm (2.5 in)
1975
85.1 mm (3.4 in)
1976
40.6 mm (1.6 in)
1977
88.9 mm (3.5 in)
1978
47.0 mm (1.9 in)
1979
86.4 mm (3.4 in)
1980
48.3 mm (1.9 in)
1981
119.4 mm (4.7 in)
1982
101.6 mm (4.0 in)
1983
41.7 mm (1.6 in)
1984
56.1 mm (2.2 in)
1985
83.8 mm (3.3 in)
1986
54.4 mm (2.1 in)
1987
51.3 mm (2.0 in)
1988
76.2 mm (3.0 in)
1989
51.3 mm (2.0 in)
1990
63.5 mm (2.5 in)
1991
50.8 mm (2.0 in)
1992
31.5 mm (1.2 in)
1993
66.0 mm (2.6 in)
1994
48.3 mm (1.9 in)
1995
83.8 mm (3.3 in)
1996
66.0 mm (2.6 in)
1997
51.6 mm (2.0 in)
1998
65.3 mm (2.6 in)
1999
65.8 mm (2.6 in)
2000
62.2 mm (2.4 in)
2001
76.2 mm (3.0 in)
2002
71.1 mm (2.8 in)
2003
94.5 mm (3.7 in)
2004
77.5 mm (3.1 in)
2005
43.2 mm (1.7 in)
2006
45.0 mm (1.8 in)
2007
42.7 mm (1.7 in)
Wettest five days (Rx5day)
The wettest five days of the year at Reydon 2SSE, 1941 to 2007. The record is 211.4 mm (8.3 in) in 1954, marked on the chart; the median year is 86.4 mm (3.4 in).
Wettest five days (Rx5day) at Reydon 2SSE by year
Year
Wettest five days (Rx5day)
1941
18.0 mm (0.7 in)
1942
155.3 mm (6.1 in)
1943
67.3 mm (2.6 in)
1944
80.0 mm (3.1 in)
1945
71.1 mm (2.8 in)
1946
165.1 mm (6.5 in)
1947
95.8 mm (3.8 in)
1948
98.3 mm (3.9 in)
1949
129.5 mm (5.1 in)
1950
66.0 mm (2.6 in)
1951
112.5 mm (4.4 in)
1952
26.0 mm (1.0 in)
1953
71.4 mm (2.8 in)
1954
211.4 mm (8.3 in)
1955
67.3 mm (2.6 in)
1956
41.9 mm (1.6 in)
1957
70.6 mm (2.8 in)
1958
36.1 mm (1.4 in)
1959
131.3 mm (5.2 in)
1960
97.3 mm (3.8 in)
1961
111.2 mm (4.4 in)
1962
83.3 mm (3.3 in)
1963
132.8 mm (5.2 in)
1964
83.0 mm (3.3 in)
1965
113.1 mm (4.5 in)
1966
39.9 mm (1.6 in)
1967
83.6 mm (3.3 in)
1968
103.0 mm (4.1 in)
1969
81.8 mm (3.2 in)
1970
80.0 mm (3.1 in)
1971
108.5 mm (4.3 in)
1972
77.5 mm (3.1 in)
1973
65.9 mm (2.6 in)
1974
81.5 mm (3.2 in)
1975
86.4 mm (3.4 in)
1976
91.1 mm (3.6 in)
1977
133.3 mm (5.2 in)
1978
79.5 mm (3.1 in)
1979
88.4 mm (3.5 in)
1980
92.0 mm (3.6 in)
1981
128.8 mm (5.1 in)
1982
173.5 mm (6.8 in)
1983
98.6 mm (3.9 in)
1984
80.5 mm (3.2 in)
1985
121.9 mm (4.8 in)
1986
105.2 mm (4.1 in)
1987
91.6 mm (3.6 in)
1988
80.8 mm (3.2 in)
1989
111.3 mm (4.4 in)
1990
76.7 mm (3.0 in)
1991
66.5 mm (2.6 in)
1992
57.8 mm (2.3 in)
1993
79.2 mm (3.1 in)
1994
69.2 mm (2.7 in)
1995
133.1 mm (5.2 in)
1996
147.2 mm (5.8 in)
1997
94.2 mm (3.7 in)
1998
141.8 mm (5.6 in)
1999
86.4 mm (3.4 in)
2000
69.3 mm (2.7 in)
2001
110.5 mm (4.4 in)
2002
126.5 mm (5.0 in)
2003
94.5 mm (3.7 in)
2004
84.8 mm (3.3 in)
2005
66.2 mm (2.6 in)
2006
52.0 mm (2.0 in)
2007
42.7 mm (1.7 in)
Longest dry spell (CDD)
The longest dry spell of the year at Reydon 2SSE, 1941 to 2007. The record is 88 days in 1955, marked on the chart; the median year is 40 days.
Longest dry spell (CDD) at Reydon 2SSE by year
Year
Longest dry spell (CDD)
1941
17 days
1942
40 days
1943
34 days
1944
31 days
1945
75 days
1946
34 days
1947
52 days
1948
33 days
1949
39 days
1950
58 days
1951
30 days
1952
41 days
1953
34 days
1954
65 days
1955
88 days
1956
45 days
1957
50 days
1958
57 days
1959
47 days
1960
35 days
1961
26 days
1962
32 days
1963
40 days
1964
32 days
1965
53 days
1966
69 days
1967
32 days
1968
35 days
1969
44 days
1970
64 days
1971
51 days
1972
41 days
1973
27 days
1974
32 days
1975
33 days
1976
35 days
1977
49 days
1978
38 days
1979
44 days
1980
32 days
1981
52 days
1982
33 days
1983
37 days
1984
21 days
1985
26 days
1986
23 days
1987
30 days
1988
54 days
1989
61 days
1990
37 days
1991
64 days
1992
42 days
1993
25 days
1994
32 days
1995
76 days
1996
56 days
1997
25 days
1998
40 days
1999
56 days
2000
64 days
2001
51 days
2002
40 days
2003
36 days
2004
34 days
2005
48 days
2006
53 days
2007
12 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
38 years with a frost
Across 38 years with a frost, the median last spring frost at Reydon 2SSE falls on 9 April and the median first autumn frost on 25 October, which leaves a median of 199 days between them.
Fitted over all years, the growing season changes by +1.0 days per decade at this station.
Frost dates and growing season at Reydon 2SSE
Measure
Median, all years
Earliest period
Recent period (1953 to 2003)
Recent against earliest
Fitted trend
Last spring frost
9 April
n/a
8 April
n/a
-0.4 days per decade
First autumn frost
25 October
n/a
26 October
n/a
+0.6 days per decade
Growing days
199 days
n/a
200 days
n/a
+1.0 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
54 years, 1942 to 2004
A day with at least 65.8 mm (2.6 in) of rain is expected about once in 2 years. A day with at least 142.1 mm (5.6 in) of rain is expected about once in 100 years.
Rainfall return levels at Reydon 2SSE: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
65.8 mm (2.6 in)
5 years
86.5 mm (3.4 in)
10 years
100.1 mm (3.9 in)
25 years
117.1 mm (4.6 in)
50 years
129.7 mm (5.1 in)
100 years
142.1 mm (5.6 in)
Longer than the 54 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, 54 years of values from 1942 to 2004.
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: 138.2 mm (5.4 in) in 1954; 134.6 mm (5.3 in) in 1946; 119.4 mm (4.7 in) in 1981.
Download the Data
Data for Reydon 2SSE standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Reydon 2SSE 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.