Record envelope, standing records and threshold days for Ripley (USC00227467), Mississippi, United States, with 113 years of record.
Key Facts for Ripley
Ripley (USC00227467) is a weather station in Mississippi, United States at 34.74 latitude and -88.95 longitude, 160 m (525 ft) above sea level.
The station reports from 1897 to 2009, 113 years of record.
1,464 records set at Ripley still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Ripley set a daily record snowfall of 7.6 cm (3.0 in) on 1 March 2009.
About the Station
Location: Mississippi, United States, 34.74 latitude, -88.95 longitude.
Elevation: 160 m (525 ft).
Period of record: 1897 to 2009, 113 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 Ripley. 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 Ripley, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
26.1 C (79.0 F)
-25.0 C (-13.0 F)
n/a
n/a
Feb
27.8 C (82.0 F)
-25.6 C (-14.1 F)
n/a
n/a
Mar
31.1 C (88.0 F)
-13.3 C (8.1 F)
n/a
n/a
Apr
33.3 C (91.9 F)
-5.0 C (23.0 F)
n/a
n/a
May
35.6 C (96.1 F)
0.0 C (32.0 F)
n/a
n/a
Jun
40.0 C (104.0 F)
5.6 C (42.1 F)
n/a
n/a
Jul
42.2 C (108.0 F)
10.6 C (51.1 F)
n/a
n/a
Aug
42.2 C (108.0 F)
8.9 C (48.0 F)
n/a
n/a
Sep
40.6 C (105.1 F)
1.1 C (34.0 F)
n/a
n/a
Oct
35.0 C (95.0 F)
-8.3 C (17.1 F)
n/a
n/a
Nov
29.4 C (84.9 F)
-12.2 C (10.0 F)
n/a
n/a
Dec
25.0 C (77.0 F)
-21.1 C (-6.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Ripley still stand. 1954 holds the most, with 61.
Standing records at Ripley by the year they were set
Year set
Standing records
1897
2
1898
12
1899
25
1900
24
1901
31
1902
42
1903
34
1904
21
1905
13
1906
20
1907
52
1908
16
1909
19
1951
3
1952
37
1953
42
1954
61
1955
26
1956
17
1957
21
1958
22
1959
19
1960
22
1961
17
1962
28
1963
25
1964
15
1965
20
1966
15
1967
39
1968
8
1969
12
1970
25
1971
16
1972
26
1973
7
1974
23
1975
16
1976
19
1977
21
1978
17
1979
13
1980
43
1981
12
1982
16
1983
24
1984
30
1985
22
1986
23
1987
15
1988
12
1989
37
1990
12
1991
18
1992
14
1993
16
1994
5
1995
13
1996
25
1997
12
1998
22
1999
16
2000
21
2001
7
2002
13
2003
10
2004
19
2005
11
2006
17
2007
19
2008
17
All-Time Record Progression
3 new records
3 all-time records were set at Ripley between 15 July 1980 and 1 December 1991. Each dot is a new record.
When Ripley set new all-time records
Date
Kind
Detail
1980-07-15
Record high maximum temperature
Record high maximum temperature 42.2 C (108.0 F)
1985-01-21
Record low maximum temperature
Record low maximum temperature -17.2 C (1.0 F)
1991-12-01
Record daily precipitation
Record daily precipitation 220.0 mm (8.7 in)
Wettest Day of Each Month
Dec: 220.0 mm (8.7 in)
The wettest day on record for each calendar month at Ripley. The most was 220.0 mm (8.7 in) on 1 December 1991.
Record daily precipitation for each month at Ripley
Month
Record daily precipitation (mm)
Date
Jan
134.9 mm (5.3 in)
11 January 1974
Feb
130.8 mm (5.1 in)
10 February 1966
Mar
217.4 mm (8.6 in)
28 March 1902
Apr
147.3 mm (5.8 in)
30 April 1907
May
113.0 mm (4.4 in)
7 May 1978
Jun
101.6 mm (4.0 in)
1 June 1974
Jul
159.3 mm (6.3 in)
22 July 1953
Aug
106.9 mm (4.2 in)
30 August 2005
Sep
155.4 mm (6.1 in)
27 September 2002
Oct
109.0 mm (4.3 in)
25 October 1976
Nov
168.1 mm (6.6 in)
27 November 1973
Dec
220.0 mm (8.7 in)
1 December 1991
Period of Record Coverage
1897 to 2009
Complete yearUnder 90 percent of days
72 years of record at Ripley, 1897 to 2009. 13 years have data for under 90 percent of days and are left out of rankings: 1897, 1898, 1899, 1904, 1905, 1908, 1909, 1951 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 54 complete years at Ripley, 1900 to 2007. Blue stripes are years cooler than the station's own mean of 15.3 C (59.6 F); red stripes are warmer. The coolest year was 1989, at 14.1 C (57.5 F), and the warmest was 1956, at 16.7 C (62.0 F). The strongest colour marks a difference of 1.4 C (2.5 F).
Annual mean temperature at Ripley as warming stripes, 1900 to 2007
Year
Annual mean temperature
Difference from the station mean
1900
16.2 C
+0.82 C
1901
14.8 C
-0.55 C
1903
14.8 C
-0.54 C
1906
16.0 C
+0.65 C
1907
16.4 C
+1.00 C
1955
16.4 C
+1.07 C
1956
16.7 C
+1.31 C
1957
16.3 C
+0.94 C
1958
14.8 C
-0.55 C
1959
15.8 C
+0.46 C
1960
15.0 C
-0.36 C
1961
15.7 C
+0.37 C
1962
16.1 C
+0.76 C
1963
15.7 C
+0.39 C
1967
15.0 C
-0.36 C
1968
14.4 C
-0.97 C
1969
14.7 C
-0.62 C
1970
15.1 C
-0.27 C
1971
15.4 C
+0.05 C
1972
15.3 C
-0.01 C
1973
15.8 C
+0.49 C
1974
15.4 C
+0.09 C
1975
15.4 C
+0.07 C
1976
14.3 C
-1.02 C
1977
15.6 C
+0.22 C
1978
14.9 C
-0.45 C
1979
14.4 C
-0.93 C
1980
15.4 C
+0.06 C
1981
15.3 C
-0.05 C
1982
15.4 C
+0.00 C
1983
14.6 C
-0.75 C
1984
15.3 C
-0.07 C
1985
15.1 C
-0.27 C
1986
16.0 C
+0.62 C
1988
14.6 C
-0.79 C
1989
14.1 C
-1.21 C
1990
15.8 C
+0.43 C
1991
15.6 C
+0.23 C
1992
14.6 C
-0.78 C
1993
14.9 C
-0.42 C
1994
15.6 C
+0.25 C
1995
15.2 C
-0.19 C
1996
14.7 C
-0.65 C
1997
14.5 C
-0.85 C
1998
16.5 C
+1.17 C
1999
16.1 C
+0.79 C
2000
15.5 C
+0.13 C
2001
15.2 C
-0.20 C
2002
15.2 C
-0.16 C
2003
14.6 C
-0.74 C
2004
15.3 C
-0.06 C
2005
15.6 C
+0.24 C
2006
15.6 C
+0.27 C
2007
16.2 C
+0.85 C
The fitted trend in annual mean temperature here over 1900 to 2007 is -0.04 C (-0.11 to 0.02) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.08 F (-0.19 to 0.03) per decade. The slope is a straight line fitted to 54 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Ripley
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.04 C (-0.11 to 0.02) per decade
-0.08 F (-0.19 to 0.03) per decade
1900 to 2007
54
Not clearly different from zero
Mean daily maximum
-0.06 C (-0.14 to 0.02) per decade
-0.10 F (-0.25 to 0.04) per decade
1900 to 2007
54
Not clearly different from zero
Mean daily minimum
-0.03 C (-0.09 to 0.04) per decade
-0.1 F (-0.2 to 0.1) per decade
1900 to 2007
54
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
1897 to 2009
Yearly extremes at Ripley: 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)
1980
36.7 C (98.1 F)
72
Coldest night (TNn)
-25.6 C (-14.1 F)
1899
-13.0 C (8.5 F)
72
Wettest day (Rx1day)
220.0 mm (8.7 in)
1991
86.4 mm (3.4 in)
79
Wettest five days (Rx5day)
311.0 mm (12.2 in)
1991
136.4 mm (5.4 in)
79
Longest dry spell (CDD)
43 days
1908
21 days
79
Hottest day (TXx)
The hottest day of the year at Ripley, 1897 to 2009. The record is 42.2 C (108.0 F) in 1980, marked on the chart; the median year is 36.7 C (98.1 F).
Hottest day (TXx) at Ripley by year
Year
Hottest day (TXx)
1897
25.6 C (78.1 F)
1898
32.2 C (90.0 F)
1899
37.8 C (100.0 F)
1900
36.7 C (98.1 F)
1901
40.6 C (105.1 F)
1902
38.9 C (102.0 F)
1903
33.9 C (93.0 F)
1904
35.6 C (96.1 F)
1905
35.0 C (95.0 F)
1906
35.6 C (96.1 F)
1907
38.9 C (102.0 F)
1908
35.0 C (95.0 F)
1909
36.7 C (98.1 F)
1944
n/a
1945
n/a
1946
n/a
1947
n/a
1948
n/a
1949
n/a
1950
n/a
1951
25.0 C (77.0 F)
1952
41.1 C (106.0 F)
1953
38.9 C (102.0 F)
1954
41.1 C (106.0 F)
1955
37.2 C (99.0 F)
1956
40.0 C (104.0 F)
1957
36.1 C (97.0 F)
1958
35.6 C (96.1 F)
1959
35.6 C (96.1 F)
1960
37.2 C (99.0 F)
1961
35.0 C (95.0 F)
1962
37.8 C (100.0 F)
1963
35.6 C (96.1 F)
1964
38.3 C (100.9 F)
1965
37.8 C (100.0 F)
1966
37.2 C (99.0 F)
1967
35.0 C (95.0 F)
1968
36.7 C (98.1 F)
1969
37.8 C (100.0 F)
1970
36.7 C (98.1 F)
1971
37.2 C (99.0 F)
1972
35.0 C (95.0 F)
1973
35.6 C (96.1 F)
1974
35.6 C (96.1 F)
1975
36.7 C (98.1 F)
1976
37.2 C (99.0 F)
1977
38.3 C (100.9 F)
1978
37.8 C (100.0 F)
1979
35.0 C (95.0 F)
1980
42.2 C (108.0 F)
1981
36.1 C (97.0 F)
1982
35.6 C (96.1 F)
1983
38.3 C (100.9 F)
1984
35.6 C (96.1 F)
1985
36.1 C (97.0 F)
1986
40.6 C (105.1 F)
1987
37.2 C (99.0 F)
1988
36.7 C (98.1 F)
1989
34.4 C (93.9 F)
1990
37.8 C (100.0 F)
1991
35.0 C (95.0 F)
1992
34.4 C (93.9 F)
1993
37.2 C (99.0 F)
1994
35.6 C (96.1 F)
1995
36.1 C (97.0 F)
1996
35.6 C (96.1 F)
1997
35.0 C (95.0 F)
1998
37.2 C (99.0 F)
1999
39.4 C (102.9 F)
2000
40.0 C (104.0 F)
2001
35.0 C (95.0 F)
2002
35.0 C (95.0 F)
2003
33.9 C (93.0 F)
2004
33.9 C (93.0 F)
2005
37.2 C (99.0 F)
2006
38.9 C (102.0 F)
2007
42.2 C (108.0 F)
2008
37.8 C (100.0 F)
2009
31.1 C (88.0 F)
Coldest night (TNn)
The coldest night of the year at Ripley, 1897 to 2009. The record is -25.6 C (-14.1 F) in 1899, marked on the chart; the median year is -13.0 C (8.5 F).
Coldest night (TNn) at Ripley by year
Year
Coldest night (TNn)
1897
-5.6 C (21.9 F)
1898
-13.9 C (7.0 F)
1899
-25.6 C (-14.1 F)
1900
-14.4 C (6.1 F)
1901
-17.8 C (0.0 F)
1902
-11.7 C (10.9 F)
1903
-17.8 C (0.0 F)
1904
-13.3 C (8.1 F)
1905
-14.4 C (6.1 F)
1906
-11.1 C (12.0 F)
1907
-9.4 C (15.1 F)
1908
-10.0 C (14.0 F)
1909
-12.2 C (10.0 F)
1944
n/a
1945
n/a
1946
n/a
1947
n/a
1948
n/a
1949
n/a
1950
n/a
1951
-11.1 C (12.0 F)
1952
-8.9 C (16.0 F)
1953
-11.7 C (10.9 F)
1954
-8.3 C (17.1 F)
1955
-11.7 C (10.9 F)
1956
-10.0 C (14.0 F)
1957
-13.3 C (8.1 F)
1958
-18.9 C (-2.0 F)
1959
-15.6 C (3.9 F)
1960
-13.9 C (7.0 F)
1961
-12.2 C (10.0 F)
1962
-22.8 C (-9.0 F)
1963
-20.0 C (-4.0 F)
1964
-12.8 C (9.0 F)
1965
-12.2 C (10.0 F)
1966
-25.0 C (-13.0 F)
1967
-12.2 C (10.0 F)
1968
-12.2 C (10.0 F)
1969
-11.7 C (10.9 F)
1970
-16.7 C (1.9 F)
1971
-18.3 C (-0.9 F)
1972
-15.6 C (3.9 F)
1973
-10.0 C (14.0 F)
1974
-9.4 C (15.1 F)
1975
-11.7 C (10.9 F)
1976
-13.9 C (7.0 F)
1977
-18.3 C (-0.9 F)
1978
-12.2 C (10.0 F)
1979
-15.0 C (5.0 F)
1980
-12.2 C (10.0 F)
1981
-13.9 C (7.0 F)
1982
-20.0 C (-4.0 F)
1983
-19.4 C (-2.9 F)
1984
-15.6 C (3.9 F)
1985
-23.3 C (-9.9 F)
1986
-12.8 C (9.0 F)
1987
-10.6 C (12.9 F)
1988
-15.6 C (3.9 F)
1989
-21.1 C (-6.0 F)
1990
-11.1 C (12.0 F)
1991
-12.2 C (10.0 F)
1992
-11.7 C (10.9 F)
1993
-10.0 C (14.0 F)
1994
-15.6 C (3.9 F)
1995
-13.3 C (8.1 F)
1996
-17.8 C (0.0 F)
1997
-15.6 C (3.9 F)
1998
-9.4 C (15.1 F)
1999
-15.0 C (5.0 F)
2000
-13.3 C (8.1 F)
2001
-13.9 C (7.0 F)
2002
-11.1 C (12.0 F)
2003
-15.6 C (3.9 F)
2004
-11.7 C (10.9 F)
2005
-10.0 C (14.0 F)
2006
-11.1 C (12.0 F)
2007
-11.1 C (12.0 F)
2008
-12.2 C (10.0 F)
2009
-14.4 C (6.1 F)
Wettest day (Rx1day)
The wettest day of the year at Ripley, 1897 to 2009. The record is 220.0 mm (8.7 in) in 1991, marked on the chart; the median year is 86.4 mm (3.4 in).
Wettest day (Rx1day) at Ripley by year
Year
Wettest day (Rx1day)
1897
39.4 mm (1.6 in)
1898
63.0 mm (2.5 in)
1899
61.0 mm (2.4 in)
1900
64.8 mm (2.6 in)
1901
97.8 mm (3.9 in)
1902
217.4 mm (8.6 in)
1903
72.4 mm (2.9 in)
1904
142.2 mm (5.6 in)
1905
114.3 mm (4.5 in)
1906
129.5 mm (5.1 in)
1907
147.3 mm (5.8 in)
1908
61.0 mm (2.4 in)
1909
63.5 mm (2.5 in)
1944
89.9 mm (3.5 in)
1945
91.4 mm (3.6 in)
1946
84.1 mm (3.3 in)
1947
68.6 mm (2.7 in)
1948
139.7 mm (5.5 in)
1949
71.1 mm (2.8 in)
1950
60.2 mm (2.4 in)
1951
90.2 mm (3.6 in)
1952
102.9 mm (4.1 in)
1953
159.3 mm (6.3 in)
1954
46.5 mm (1.8 in)
1955
86.4 mm (3.4 in)
1956
90.4 mm (3.6 in)
1957
95.3 mm (3.8 in)
1958
87.9 mm (3.5 in)
1959
66.5 mm (2.6 in)
1960
59.7 mm (2.4 in)
1961
58.4 mm (2.3 in)
1962
59.2 mm (2.3 in)
1963
79.0 mm (3.1 in)
1964
85.3 mm (3.4 in)
1965
61.0 mm (2.4 in)
1966
130.8 mm (5.1 in)
1967
62.7 mm (2.5 in)
1968
157.5 mm (6.2 in)
1969
94.2 mm (3.7 in)
1970
109.2 mm (4.3 in)
1971
85.6 mm (3.4 in)
1972
124.2 mm (4.9 in)
1973
175.8 mm (6.9 in)
1974
134.9 mm (5.3 in)
1975
77.7 mm (3.1 in)
1976
109.0 mm (4.3 in)
1977
87.6 mm (3.4 in)
1978
113.0 mm (4.4 in)
1979
117.6 mm (4.6 in)
1980
121.4 mm (4.8 in)
1981
62.0 mm (2.4 in)
1982
116.6 mm (4.6 in)
1983
105.2 mm (4.1 in)
1984
103.9 mm (4.1 in)
1985
72.4 mm (2.9 in)
1986
84.6 mm (3.3 in)
1987
71.9 mm (2.8 in)
1988
71.6 mm (2.8 in)
1989
80.0 mm (3.1 in)
1990
107.2 mm (4.2 in)
1991
220.0 mm (8.7 in)
1992
103.1 mm (4.1 in)
1993
65.5 mm (2.6 in)
1994
86.4 mm (3.4 in)
1995
59.7 mm (2.4 in)
1996
65.8 mm (2.6 in)
1997
72.9 mm (2.9 in)
1998
125.0 mm (4.9 in)
1999
70.9 mm (2.8 in)
2000
64.0 mm (2.5 in)
2001
93.5 mm (3.7 in)
2002
155.4 mm (6.1 in)
2003
85.6 mm (3.4 in)
2004
68.6 mm (2.7 in)
2005
106.9 mm (4.2 in)
2006
90.2 mm (3.6 in)
2007
93.0 mm (3.7 in)
2008
64.0 mm (2.5 in)
2009
39.6 mm (1.6 in)
Wettest five days (Rx5day)
The wettest five days of the year at Ripley, 1897 to 2009. The record is 311.0 mm (12.2 in) in 1991, marked on the chart; the median year is 136.4 mm (5.4 in).
Wettest five days (Rx5day) at Ripley by year
Year
Wettest five days (Rx5day)
1897
97.9 mm (3.9 in)
1898
124.0 mm (4.9 in)
1899
105.9 mm (4.2 in)
1900
124.3 mm (4.9 in)
1901
164.8 mm (6.5 in)
1902
298.6 mm (11.8 in)
1903
89.4 mm (3.5 in)
1904
297.1 mm (11.7 in)
1905
203.2 mm (8.0 in)
1906
205.6 mm (8.1 in)
1907
168.1 mm (6.6 in)
1908
147.3 mm (5.8 in)
1909
114.3 mm (4.5 in)
1944
137.9 mm (5.4 in)
1945
185.7 mm (7.3 in)
1946
194.2 mm (7.6 in)
1947
132.4 mm (5.2 in)
1948
238.2 mm (9.4 in)
1949
136.4 mm (5.4 in)
1950
107.5 mm (4.2 in)
1951
134.7 mm (5.3 in)
1952
102.9 mm (4.1 in)
1953
236.8 mm (9.3 in)
1954
79.5 mm (3.1 in)
1955
183.3 mm (7.2 in)
1956
135.3 mm (5.3 in)
1957
174.2 mm (6.9 in)
1958
163.3 mm (6.4 in)
1959
98.3 mm (3.9 in)
1960
128.8 mm (5.1 in)
1961
110.2 mm (4.3 in)
1962
108.9 mm (4.3 in)
1963
114.1 mm (4.5 in)
1964
116.8 mm (4.6 in)
1965
153.2 mm (6.0 in)
1966
178.3 mm (7.0 in)
1967
82.4 mm (3.2 in)
1968
188.7 mm (7.4 in)
1969
173.2 mm (6.8 in)
1970
129.8 mm (5.1 in)
1971
126.7 mm (5.0 in)
1972
129.5 mm (5.1 in)
1973
265.2 mm (10.4 in)
1974
178.3 mm (7.0 in)
1975
153.1 mm (6.0 in)
1976
121.7 mm (4.8 in)
1977
140.7 mm (5.5 in)
1978
177.6 mm (7.0 in)
1979
187.5 mm (7.4 in)
1980
182.8 mm (7.2 in)
1981
96.5 mm (3.8 in)
1982
224.9 mm (8.9 in)
1983
156.0 mm (6.1 in)
1984
142.5 mm (5.6 in)
1985
83.5 mm (3.3 in)
1986
179.2 mm (7.1 in)
1987
108.5 mm (4.3 in)
1988
88.6 mm (3.5 in)
1989
162.7 mm (6.4 in)
1990
155.9 mm (6.1 in)
1991
311.0 mm (12.2 in)
1992
103.1 mm (4.1 in)
1993
107.4 mm (4.2 in)
1994
131.1 mm (5.2 in)
1995
98.6 mm (3.9 in)
1996
88.0 mm (3.5 in)
1997
144.6 mm (5.7 in)
1998
167.4 mm (6.6 in)
1999
123.2 mm (4.9 in)
2000
119.3 mm (4.7 in)
2001
255.3 mm (10.1 in)
2002
188.4 mm (7.4 in)
2003
113.0 mm (4.4 in)
2004
162.9 mm (6.4 in)
2005
119.3 mm (4.7 in)
2006
102.4 mm (4.0 in)
2007
120.8 mm (4.8 in)
2008
138.4 mm (5.4 in)
2009
106.4 mm (4.2 in)
Longest dry spell (CDD)
The longest dry spell of the year at Ripley, 1897 to 2009. The record is 43 days in 1908, marked on the chart; the median year is 21 days.
Longest dry spell (CDD) at Ripley by year
Year
Longest dry spell (CDD)
1897
8 days
1898
13 days
1899
30 days
1900
20 days
1901
34 days
1902
23 days
1903
28 days
1904
27 days
1905
23 days
1906
30 days
1907
20 days
1908
43 days
1909
26 days
1944
33 days
1945
19 days
1946
27 days
1947
19 days
1948
21 days
1949
18 days
1950
23 days
1951
27 days
1952
29 days
1953
37 days
1954
34 days
1955
24 days
1956
31 days
1957
15 days
1958
21 days
1959
19 days
1960
17 days
1961
21 days
1962
28 days
1963
34 days
1964
21 days
1965
31 days
1966
19 days
1967
20 days
1968
22 days
1969
26 days
1970
19 days
1971
17 days
1972
19 days
1973
15 days
1974
17 days
1975
18 days
1976
21 days
1977
20 days
1978
16 days
1979
18 days
1980
19 days
1981
15 days
1982
16 days
1983
27 days
1984
24 days
1985
14 days
1986
19 days
1987
30 days
1988
38 days
1989
15 days
1990
20 days
1991
22 days
1992
17 days
1993
17 days
1994
14 days
1995
14 days
1996
19 days
1997
17 days
1998
36 days
1999
34 days
2000
39 days
2001
25 days
2002
21 days
2003
14 days
2004
21 days
2005
35 days
2006
22 days
2007
32 days
2008
17 days
2009
19 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
54 years with a frost
Across 54 years with a frost, the median last spring frost at Ripley falls on 9 April and the median first autumn frost on 28 October, which leaves a median of 205 days between them.
Fitted over all years, the growing season changes by +0.1 days per decade at this station.
Frost dates and growing season at Ripley
Measure
Median, all years
Earliest period
Recent period (1977 to 2007)
Recent against earliest
Fitted trend
Last spring frost
9 April
n/a
8 April
n/a
+0.5 days per decade
First autumn frost
28 October
n/a
27 October
n/a
+0.6 days per decade
Growing days
205 days
n/a
205 days
n/a
+0.1 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
67 years, 1900 to 2008
A day with at least 88.2 mm (3.5 in) of rain is expected about once in 2 years. A day with at least 235.1 mm (9.3 in) of rain is expected about once in 100 years.
Rainfall return levels at Ripley: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
88.2 mm (3.5 in)
5 years
117.3 mm (4.6 in)
10 years
140.1 mm (5.5 in)
25 years
173.7 mm (6.8 in)
50 years
202.6 mm (8.0 in)
100 years
235.1 mm (9.3 in)
Longer than the 67 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, 67 years of values from 1900 to 2008.
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: 220.0 mm (8.7 in) in 1991; 217.4 mm (8.6 in) in 1902; 175.8 mm (6.9 in) in 1973.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Ripley, at 1961. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1961 ran 0.2 C (0.4 F) higher than in the years before (possible change).
Suspected changes in the annual mean temperature at Ripley, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1961
+0.2
+0.4
possible
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 Ripley standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Ripley 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.