Record envelope, standing records and threshold days for Whatley (USC00018867), Alabama, United States, with 68 years of record.
Key Facts for Whatley
Whatley (USC00018867) is a weather station in Alabama, United States at 31.65 latitude and -87.71 longitude, 52 m (170 ft) above sea level.
The station reports from 1940 to 2007, 68 years of record.
1,464 records set at Whatley still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Whatley set a daily record high maximum temperature of 37.8 C (100.0 F) on 23 August 2007.
About the Station
Location: Alabama, United States, 31.65 latitude, -87.71 longitude.
Elevation: 52 m (170 ft).
Period of record: 1940 to 2007, 68 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 Whatley. 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 Whatley, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
28.9 C (84.0 F)
-18.9 C (-2.0 F)
n/a
n/a
Feb
30.0 C (86.0 F)
-14.4 C (6.1 F)
n/a
n/a
Mar
33.3 C (91.9 F)
-10.6 C (12.9 F)
n/a
n/a
Apr
33.3 C (91.9 F)
-3.3 C (26.1 F)
n/a
n/a
May
36.7 C (98.1 F)
1.1 C (34.0 F)
n/a
n/a
Jun
40.0 C (104.0 F)
4.4 C (39.9 F)
n/a
n/a
Jul
40.0 C (104.0 F)
10.0 C (50.0 F)
n/a
n/a
Aug
39.4 C (102.9 F)
10.6 C (51.1 F)
n/a
n/a
Sep
38.3 C (100.9 F)
1.7 C (35.1 F)
n/a
n/a
Oct
35.0 C (95.0 F)
-3.9 C (25.0 F)
n/a
n/a
Nov
31.1 C (88.0 F)
-10.0 C (14.0 F)
n/a
n/a
Dec
28.3 C (82.9 F)
-16.7 C (1.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Whatley still stand. 1962 holds the most, with 58.
Standing records at Whatley by the year they were set
Year set
Standing records
1956
9
1957
45
1958
22
1959
25
1960
23
1961
37
1962
58
1963
58
1964
25
1965
28
1966
34
1967
50
1968
34
1969
54
1970
33
1971
38
1972
40
1973
25
1974
17
1975
16
1976
19
1977
33
1978
17
1979
8
1980
21
1981
32
1982
36
1983
31
1984
42
1985
27
1986
14
1987
21
1988
23
1989
46
1990
19
1991
29
1992
24
1993
19
1994
21
1995
24
1996
25
1997
14
1998
22
1999
45
2000
45
2001
22
2002
19
2003
17
2004
27
2005
20
2006
15
2007
16
All-Time Record Progression
1 new records
1 all-time records were set at Whatley between 23 December 1989 and 23 December 1989. Each dot is a new record.
When Whatley set new all-time records
Date
Kind
Detail
1989-12-23
Record low maximum temperature
Record low maximum temperature -6.7 C (19.9 F)
Wettest Day of Each Month
Jul: 275.6 mm (10.9 in)
The wettest day on record for each calendar month at Whatley. The most was 275.6 mm (10.9 in) on 8 July 1956.
Record daily precipitation for each month at Whatley
Month
Record daily precipitation (mm)
Date
Jan
90.9 mm (3.6 in)
27 January 1996
Feb
134.1 mm (5.3 in)
18 February 1961
Mar
174.0 mm (6.9 in)
16 March 1990
Apr
146.8 mm (5.8 in)
5 April 1957
May
139.7 mm (5.5 in)
17 May 1980
Jun
111.3 mm (4.4 in)
12 June 2001
Jul
275.6 mm (10.9 in)
8 July 1956
Aug
136.7 mm (5.4 in)
6 August 1960
Sep
260.4 mm (10.3 in)
29 September 1998
Oct
156.5 mm (6.2 in)
31 October 1967
Nov
128.8 mm (5.1 in)
27 November 1948
Dec
193.0 mm (7.6 in)
1 December 1996
Period of Record Coverage
1956 to 2007
Complete yearUnder 90 percent of days
52 years of record at Whatley, 1956 to 2007. 5 years have data for under 90 percent of days and are left out of rankings: 1956, 1983, 2001, 2002, 2007.
Cooler than the station meanWarmer than the station mean
One stripe for each of 40 complete years at Whatley, 1957 to 2006. Blue stripes are years cooler than the station's own mean of 18.1 C (64.6 F); red stripes are warmer. The coolest year was 1989, at 16.3 C (61.4 F), and the warmest was 2000, at 19.6 C (67.3 F). The strongest colour marks a difference of 1.8 C (3.2 F).
Annual mean temperature at Whatley as warming stripes, 1957 to 2006
Year
Annual mean temperature
Difference from the station mean
1957
19.0 C
+0.90 C
1958
17.4 C
-0.72 C
1959
18.3 C
+0.12 C
1960
17.7 C
-0.45 C
1961
18.0 C
-0.16 C
1962
18.7 C
+0.55 C
1963
18.0 C
-0.18 C
1965
18.4 C
+0.23 C
1967
18.1 C
-0.05 C
1968
17.1 C
-1.04 C
1969
17.1 C
-1.02 C
1970
17.5 C
-0.59 C
1971
18.3 C
+0.16 C
1972
19.0 C
+0.89 C
1975
18.5 C
+0.32 C
1977
18.1 C
-0.07 C
1979
17.4 C
-0.72 C
1981
17.7 C
-0.45 C
1982
18.6 C
+0.45 C
1984
17.6 C
-0.54 C
1985
18.3 C
+0.17 C
1986
18.6 C
+0.43 C
1987
17.7 C
-0.39 C
1988
17.4 C
-0.76 C
1989
16.3 C
-1.79 C
1990
19.0 C
+0.85 C
1991
18.7 C
+0.52 C
1992
17.7 C
-0.47 C
1993
17.6 C
-0.52 C
1994
18.1 C
-0.08 C
1995
18.1 C
+0.01 C
1996
17.9 C
-0.24 C
1997
18.0 C
-0.14 C
1998
19.3 C
+1.21 C
1999
19.5 C
+1.37 C
2000
19.6 C
+1.47 C
2003
18.2 C
+0.04 C
2004
18.0 C
-0.11 C
2005
18.1 C
-0.08 C
2006
19.1 C
+0.98 C
The fitted trend in annual mean temperature here over 1957 to 2006 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: 0.2 F (-0.1 to 0.4) per decade. The slope is a straight line fitted to 40 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Whatley
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.1 C (-0.1 to 0.2) per decade
0.2 F (-0.1 to 0.4) per decade
1957 to 2006
40
Not clearly different from zero
Mean daily maximum
-0.17 C (-0.35 to 0.01) per decade
-0.31 F (-0.63 to 0.02) per decade
1957 to 2006
40
Not clearly different from zero
Mean daily minimum
0.4 C (0.2 to 0.6) per decade
0.7 F (0.3 to 1.0) per decade
1957 to 2006
40
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
1940 to 2007
Yearly extremes at Whatley: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
40.0 C (104.0 F)
1963
37.2 C (99.0 F)
52
Coldest night (TNn)
-18.9 C (-2.0 F)
1985
-10.0 C (14.0 F)
52
Wettest day (Rx1day)
275.6 mm (10.9 in)
1956
101.6 mm (4.0 in)
68
Wettest five days (Rx5day)
384.9 mm (15.2 in)
1998
144.2 mm (5.7 in)
68
Longest dry spell (CDD)
39 days
2001
23 days
68
Hottest day (TXx)
The hottest day of the year at Whatley, 1940 to 2007. The record is 40.0 C (104.0 F) in 1963, marked on the chart; the median year is 37.2 C (99.0 F).
Hottest day (TXx) at Whatley by year
Year
Hottest day (TXx)
1940
n/a
1941
n/a
1942
n/a
1943
n/a
1944
n/a
1945
n/a
1946
n/a
1947
n/a
1948
n/a
1949
n/a
1950
n/a
1951
n/a
1952
n/a
1953
n/a
1954
n/a
1955
n/a
1956
30.6 C (87.1 F)
1957
36.7 C (98.1 F)
1958
36.7 C (98.1 F)
1959
36.1 C (97.0 F)
1960
37.8 C (100.0 F)
1961
35.6 C (96.1 F)
1962
38.3 C (100.9 F)
1963
40.0 C (104.0 F)
1964
38.3 C (100.9 F)
1965
36.7 C (98.1 F)
1966
38.3 C (100.9 F)
1967
37.8 C (100.0 F)
1968
37.8 C (100.0 F)
1969
39.4 C (102.9 F)
1970
38.3 C (100.9 F)
1971
37.2 C (99.0 F)
1972
38.3 C (100.9 F)
1973
36.7 C (98.1 F)
1974
37.2 C (99.0 F)
1975
36.1 C (97.0 F)
1976
37.2 C (99.0 F)
1977
38.3 C (100.9 F)
1978
38.3 C (100.9 F)
1979
37.8 C (100.0 F)
1980
39.4 C (102.9 F)
1981
37.8 C (100.0 F)
1982
36.7 C (98.1 F)
1983
38.3 C (100.9 F)
1984
36.1 C (97.0 F)
1985
38.3 C (100.9 F)
1986
36.7 C (98.1 F)
1987
36.7 C (98.1 F)
1988
37.8 C (100.0 F)
1989
36.7 C (98.1 F)
1990
37.8 C (100.0 F)
1991
35.6 C (96.1 F)
1992
36.7 C (98.1 F)
1993
35.6 C (96.1 F)
1994
34.4 C (93.9 F)
1995
36.1 C (97.0 F)
1996
35.6 C (96.1 F)
1997
36.1 C (97.0 F)
1998
37.8 C (100.0 F)
1999
37.2 C (99.0 F)
2000
40.0 C (104.0 F)
2001
36.1 C (97.0 F)
2002
37.2 C (99.0 F)
2003
33.9 C (93.0 F)
2004
34.4 C (93.9 F)
2005
35.6 C (96.1 F)
2006
38.3 C (100.9 F)
2007
38.9 C (102.0 F)
Coldest night (TNn)
The coldest night of the year at Whatley, 1940 to 2007. The record is -18.9 C (-2.0 F) in 1985, marked on the chart; the median year is -10.0 C (14.0 F).
Coldest night (TNn) at Whatley by year
Year
Coldest night (TNn)
1940
n/a
1941
n/a
1942
n/a
1943
n/a
1944
n/a
1945
n/a
1946
n/a
1947
n/a
1948
n/a
1949
n/a
1950
n/a
1951
n/a
1952
n/a
1953
n/a
1954
n/a
1955
n/a
1956
-7.8 C (18.0 F)
1957
-10.6 C (12.9 F)
1958
-10.6 C (12.9 F)
1959
-9.4 C (15.1 F)
1960
-9.4 C (15.1 F)
1961
-10.6 C (12.9 F)
1962
-14.4 C (6.1 F)
1963
-16.1 C (3.0 F)
1964
-11.7 C (10.9 F)
1965
-9.4 C (15.1 F)
1966
-14.4 C (6.1 F)
1967
-7.2 C (19.0 F)
1968
-10.0 C (14.0 F)
1969
-11.7 C (10.9 F)
1970
-16.7 C (1.9 F)
1971
-11.1 C (12.0 F)
1972
-8.3 C (17.1 F)
1973
-10.0 C (14.0 F)
1974
-7.2 C (19.0 F)
1975
-10.0 C (14.0 F)
1976
-8.9 C (16.0 F)
1977
-15.6 C (3.9 F)
1978
-10.0 C (14.0 F)
1979
-12.2 C (10.0 F)
1980
-9.4 C (15.1 F)
1981
-13.3 C (8.1 F)
1982
-16.7 C (1.9 F)
1983
-16.7 C (1.9 F)
1984
-13.3 C (8.1 F)
1985
-18.9 C (-2.0 F)
1986
-10.6 C (12.9 F)
1987
-7.2 C (19.0 F)
1988
-8.9 C (16.0 F)
1989
-14.4 C (6.1 F)
1990
-5.6 C (21.9 F)
1991
-9.4 C (15.1 F)
1992
-7.2 C (19.0 F)
1993
-10.6 C (12.9 F)
1994
-8.9 C (16.0 F)
1995
-9.4 C (15.1 F)
1996
-13.3 C (8.1 F)
1997
-10.0 C (14.0 F)
1998
-5.6 C (21.9 F)
1999
-11.1 C (12.0 F)
2000
-11.1 C (12.0 F)
2001
-10.0 C (14.0 F)
2002
-9.4 C (15.1 F)
2003
-10.6 C (12.9 F)
2004
-6.7 C (19.9 F)
2005
-6.7 C (19.9 F)
2006
-6.7 C (19.9 F)
2007
-5.6 C (21.9 F)
Wettest day (Rx1day)
The wettest day of the year at Whatley, 1940 to 2007. The record is 275.6 mm (10.9 in) in 1956, marked on the chart; the median year is 101.6 mm (4.0 in).
Wettest day (Rx1day) at Whatley by year
Year
Wettest day (Rx1day)
1940
86.4 mm (3.4 in)
1941
218.4 mm (8.6 in)
1942
55.9 mm (2.2 in)
1943
137.2 mm (5.4 in)
1944
102.1 mm (4.0 in)
1945
69.3 mm (2.7 in)
1946
94.0 mm (3.7 in)
1947
153.9 mm (6.1 in)
1948
128.8 mm (5.1 in)
1949
64.3 mm (2.5 in)
1950
113.0 mm (4.4 in)
1951
103.1 mm (4.1 in)
1952
53.8 mm (2.1 in)
1953
109.2 mm (4.3 in)
1954
56.1 mm (2.2 in)
1955
77.7 mm (3.1 in)
1956
275.6 mm (10.9 in)
1957
146.8 mm (5.8 in)
1958
53.1 mm (2.1 in)
1959
82.6 mm (3.3 in)
1960
136.7 mm (5.4 in)
1961
153.2 mm (6.0 in)
1962
88.9 mm (3.5 in)
1963
61.0 mm (2.4 in)
1964
101.6 mm (4.0 in)
1965
81.3 mm (3.2 in)
1966
66.8 mm (2.6 in)
1967
156.5 mm (6.2 in)
1968
57.2 mm (2.3 in)
1969
62.2 mm (2.4 in)
1970
111.3 mm (4.4 in)
1971
101.6 mm (4.0 in)
1972
133.4 mm (5.3 in)
1973
78.7 mm (3.1 in)
1974
228.6 mm (9.0 in)
1975
123.2 mm (4.9 in)
1976
111.8 mm (4.4 in)
1977
88.9 mm (3.5 in)
1978
88.9 mm (3.5 in)
1979
122.7 mm (4.8 in)
1980
139.7 mm (5.5 in)
1981
76.2 mm (3.0 in)
1982
78.7 mm (3.1 in)
1983
89.2 mm (3.5 in)
1984
80.5 mm (3.2 in)
1985
101.9 mm (4.0 in)
1986
94.7 mm (3.7 in)
1987
73.7 mm (2.9 in)
1988
74.2 mm (2.9 in)
1989
104.1 mm (4.1 in)
1990
174.0 mm (6.9 in)
1991
83.8 mm (3.3 in)
1992
85.1 mm (3.4 in)
1993
134.1 mm (5.3 in)
1994
104.1 mm (4.1 in)
1995
142.2 mm (5.6 in)
1996
193.0 mm (7.6 in)
1997
86.4 mm (3.4 in)
1998
260.4 mm (10.3 in)
1999
88.9 mm (3.5 in)
2000
69.9 mm (2.8 in)
2001
122.4 mm (4.8 in)
2002
114.3 mm (4.5 in)
2003
87.6 mm (3.4 in)
2004
139.7 mm (5.5 in)
2005
139.7 mm (5.5 in)
2006
97.0 mm (3.8 in)
2007
127.8 mm (5.0 in)
Wettest five days (Rx5day)
The wettest five days of the year at Whatley, 1940 to 2007. The record is 384.9 mm (15.2 in) in 1998, marked on the chart; the median year is 144.2 mm (5.7 in).
Wettest five days (Rx5day) at Whatley by year
Year
Wettest five days (Rx5day)
1940
140.4 mm (5.5 in)
1941
291.6 mm (11.5 in)
1942
97.7 mm (3.8 in)
1943
208.4 mm (8.2 in)
1944
143.0 mm (5.6 in)
1945
134.1 mm (5.3 in)
1946
196.1 mm (7.7 in)
1947
206.8 mm (8.1 in)
1948
230.6 mm (9.1 in)
1949
103.2 mm (4.1 in)
1950
138.5 mm (5.5 in)
1951
117.1 mm (4.6 in)
1952
96.0 mm (3.8 in)
1953
147.6 mm (5.8 in)
1954
75.2 mm (3.0 in)
1955
187.4 mm (7.4 in)
1956
367.8 mm (14.5 in)
1957
207.3 mm (8.2 in)
1958
90.5 mm (3.6 in)
1959
126.9 mm (5.0 in)
1960
183.7 mm (7.2 in)
1961
271.1 mm (10.7 in)
1962
103.4 mm (4.1 in)
1963
125.8 mm (5.0 in)
1964
142.1 mm (5.6 in)
1965
108.0 mm (4.3 in)
1966
125.5 mm (4.9 in)
1967
184.7 mm (7.3 in)
1968
90.7 mm (3.6 in)
1969
82.9 mm (3.3 in)
1970
118.4 mm (4.7 in)
1971
123.2 mm (4.9 in)
1972
190.6 mm (7.5 in)
1973
109.2 mm (4.3 in)
1974
257.8 mm (10.1 in)
1975
278.2 mm (11.0 in)
1976
116.9 mm (4.6 in)
1977
121.9 mm (4.8 in)
1978
116.9 mm (4.6 in)
1979
208.1 mm (8.2 in)
1980
219.1 mm (8.6 in)
1981
138.4 mm (5.4 in)
1982
203.2 mm (8.0 in)
1983
211.9 mm (8.3 in)
1984
80.5 mm (3.2 in)
1985
112.3 mm (4.4 in)
1986
155.9 mm (6.1 in)
1987
105.8 mm (4.2 in)
1988
155.0 mm (6.1 in)
1989
148.3 mm (5.8 in)
1990
207.8 mm (8.2 in)
1991
117.9 mm (4.6 in)
1992
163.1 mm (6.4 in)
1993
145.3 mm (5.7 in)
1994
150.6 mm (5.9 in)
1995
189.7 mm (7.5 in)
1996
193.0 mm (7.6 in)
1997
130.8 mm (5.1 in)
1998
384.9 mm (15.2 in)
1999
160.8 mm (6.3 in)
2000
127.3 mm (5.0 in)
2001
230.6 mm (9.1 in)
2002
213.1 mm (8.4 in)
2003
120.3 mm (4.7 in)
2004
190.5 mm (7.5 in)
2005
232.5 mm (9.2 in)
2006
114.0 mm (4.5 in)
2007
130.6 mm (5.1 in)
Longest dry spell (CDD)
The longest dry spell of the year at Whatley, 1940 to 2007. The record is 39 days in 2001, marked on the chart; the median year is 23 days.
Longest dry spell (CDD) at Whatley by year
Year
Longest dry spell (CDD)
1940
23 days
1941
23 days
1942
22 days
1943
23 days
1944
26 days
1945
33 days
1946
13 days
1947
19 days
1948
14 days
1949
21 days
1950
24 days
1951
28 days
1952
32 days
1953
20 days
1954
19 days
1955
23 days
1956
21 days
1957
17 days
1958
17 days
1959
12 days
1960
16 days
1961
31 days
1962
18 days
1963
34 days
1964
28 days
1965
29 days
1966
25 days
1967
30 days
1968
23 days
1969
25 days
1970
25 days
1971
19 days
1972
24 days
1973
14 days
1974
21 days
1975
20 days
1976
24 days
1977
23 days
1978
32 days
1979
25 days
1980
26 days
1981
21 days
1982
30 days
1983
19 days
1984
33 days
1985
24 days
1986
29 days
1987
35 days
1988
25 days
1989
37 days
1990
19 days
1991
19 days
1992
15 days
1993
20 days
1994
17 days
1995
17 days
1996
16 days
1997
20 days
1998
25 days
1999
18 days
2000
33 days
2001
39 days
2002
18 days
2003
28 days
2004
14 days
2005
14 days
2006
31 days
2007
30 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
40 years with a frost
Across 40 years with a frost, the median last spring frost at Whatley falls on 31 March and the median first autumn frost on 5 November, which leaves a median of 219 days between them.
Fitted over all years, the growing season changes by +4.4 days per decade at this station.
Frost dates and growing season at Whatley
Measure
Median, all years
Earliest period
Recent period (1969 to 2006)
Recent against earliest
Fitted trend
Last spring frost
31 March
n/a
1 April
n/a
-0.9 days per decade
First autumn frost
5 November
n/a
8 November
n/a
+3.5 days per decade
Growing days
219 days
n/a
222 days
n/a
+4.4 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
64 years, 1941 to 2006
A day with at least 99.7 mm (3.9 in) of rain is expected about once in 2 years. A day with at least 289.1 mm (11.4 in) of rain is expected about once in 100 years.
Rainfall return levels at Whatley: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
99.7 mm (3.9 in)
5 years
139.6 mm (5.5 in)
10 years
169.9 mm (6.7 in)
25 years
213.2 mm (8.4 in)
50 years
249.4 mm (9.8 in)
100 years
289.1 mm (11.4 in)
Longer than the 64 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, 64 years of values from 1941 to 2006.
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: 275.6 mm (10.9 in) in 1956; 260.4 mm (10.3 in) in 1998; 228.6 mm (9.0 in) in 1974.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Whatley standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Whatley 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.