Record envelope, standing records and threshold days for Prattville (USC00016640), Alabama, United States, with 79 years of record.
Key Facts for Prattville
Prattville (USC00016640) is a weather station in Alabama, United States at 32.48 latitude and -86.48 longitude, 92 m (302 ft) above sea level.
The station reports from 1899 to 1977, 79 years of record.
1,464 records set at Prattville still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Prattville set a daily record precipitation of 81.3 mm (3.2 in) on 3 August 1977.
About the Station
Location: Alabama, United States, 32.48 latitude, -86.48 longitude.
Elevation: 92 m (302 ft).
Period of record: 1899 to 1977, 79 years.
Eligible elements: tmax, tmin, prcp, snow.
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 Prattville. 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 Prattville, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
31.1 C (88.0 F)
-16.7 C (1.9 F)
n/a
n/a
Feb
29.4 C (84.9 F)
-13.3 C (8.1 F)
n/a
n/a
Mar
33.9 C (93.0 F)
-8.9 C (16.0 F)
n/a
n/a
Apr
34.4 C (93.9 F)
-2.2 C (28.0 F)
n/a
n/a
May
37.2 C (99.0 F)
2.2 C (36.0 F)
n/a
n/a
Jun
40.0 C (104.0 F)
7.2 C (45.0 F)
n/a
n/a
Jul
41.1 C (106.0 F)
12.8 C (55.0 F)
n/a
n/a
Aug
39.4 C (102.9 F)
12.2 C (54.0 F)
n/a
n/a
Sep
40.6 C (105.1 F)
1.7 C (35.1 F)
n/a
n/a
Oct
37.2 C (99.0 F)
-3.3 C (26.1 F)
n/a
n/a
Nov
31.1 C (88.0 F)
-10.6 C (12.9 F)
n/a
n/a
Dec
27.8 C (82.0 F)
-15.0 C (5.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Prattville still stand. 1925 holds the most, with 52.
Standing records at Prattville by the year they were set
Year set
Standing records
1899
2
1900
27
1901
32
1902
37
1903
26
1904
26
1905
27
1906
18
1907
18
1908
11
1909
17
1910
15
1911
23
1912
7
1913
27
1914
22
1915
12
1916
22
1917
32
1918
35
1919
26
1920
19
1921
17
1922
27
1923
21
1924
31
1925
52
1926
16
1927
34
1928
22
1929
26
1930
21
1931
24
1932
23
1933
18
1934
13
1935
19
1936
12
1937
29
1938
12
1939
13
1940
22
1941
9
1942
9
1943
20
1944
6
1945
18
1946
12
1947
15
1948
11
1949
6
1950
23
1951
16
1952
23
1953
12
1954
32
1955
17
1956
10
1957
10
1958
6
1959
7
1960
12
1961
20
1962
35
1963
36
1964
22
1965
6
1966
12
1967
27
1968
15
1969
12
1970
19
1971
12
1972
2
1973
13
1974
1
1975
14
1976
5
1977
6
All-Time Record Progression
7 new records
7 all-time records were set at Prattville between 11 July 1930 and 30 January 1966. Each dot is a new record.
When Prattville set new all-time records
Date
Kind
Detail
1930-07-11
Record high maximum temperature
Record high maximum temperature 41.1 C (106.0 F)
1939-08-16
Record daily precipitation
Record daily precipitation 205.7 mm (8.1 in)
1961-12-10
Record daily precipitation
Record daily precipitation 229.9 mm (9.1 in)
1962-01-11
Record low maximum temperature
Record low maximum temperature -4.4 C (24.1 F)
1962-12-13
Record low minimum temperature
Record low minimum temperature -15.0 C (5.0 F)
1963-01-24
Record low minimum temperature
Record low minimum temperature -15.6 C (3.9 F)
1966-01-30
Record low minimum temperature
Record low minimum temperature -16.7 C (1.9 F)
Wettest Day of Each Month
Dec: 229.9 mm (9.1 in)
The wettest day on record for each calendar month at Prattville. The most was 229.9 mm (9.1 in) on 10 December 1961.
Record daily precipitation for each month at Prattville
Month
Record daily precipitation (mm)
Date
Jan
149.4 mm (5.9 in)
4 January 1926
Feb
116.8 mm (4.6 in)
24 February 1961
Mar
118.1 mm (4.6 in)
8 March 1919
Apr
180.1 mm (7.1 in)
6 April 1964
May
90.9 mm (3.6 in)
20 May 1946
Jun
151.1 mm (5.9 in)
4 June 1928
Jul
136.4 mm (5.4 in)
6 July 1916
Aug
205.7 mm (8.1 in)
16 August 1939
Sep
139.7 mm (5.5 in)
26 September 1953
Oct
83.8 mm (3.3 in)
14 October 1959
Nov
86.4 mm (3.4 in)
7 November 1943
Dec
229.9 mm (9.1 in)
10 December 1961
Period of Record Coverage
1899 to 1977
Complete yearUnder 90 percent of days
79 years of record at Prattville, 1899 to 1977. 15 years have data for under 90 percent of days and are left out of rankings: 1899, 1906, 1907, 1910, 1930, 1942, 1944, 1957 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 56 complete years at Prattville, 1901 to 1973. Blue stripes are years cooler than the station's own mean of 18.1 C (64.5 F); red stripes are warmer. The coolest year was 1940, at 16.7 C (62.0 F), and the warmest was 1927, at 19.2 C (66.5 F). The strongest colour marks a difference of 1.5 C (2.7 F).
Annual mean temperature at Prattville as warming stripes, 1901 to 1973
Year
Annual mean temperature
Difference from the station mean
1901
16.7 C
-1.33 C
1902
17.8 C
-0.25 C
1903
16.9 C
-1.16 C
1905
17.8 C
-0.32 C
1908
18.3 C
+0.19 C
1909
18.2 C
+0.09 C
1911
18.9 C
+0.84 C
1915
17.6 C
-0.44 C
1917
17.0 C
-1.10 C
1918
18.1 C
+0.06 C
1919
18.2 C
+0.17 C
1920
17.2 C
-0.83 C
1921
19.1 C
+0.98 C
1922
19.1 C
+1.02 C
1923
18.0 C
-0.08 C
1924
17.7 C
-0.37 C
1925
18.9 C
+0.83 C
1926
17.6 C
-0.45 C
1927
19.2 C
+1.09 C
1928
17.6 C
-0.48 C
1929
18.0 C
-0.12 C
1931
18.1 C
+0.06 C
1932
18.5 C
+0.40 C
1933
19.0 C
+0.90 C
1934
17.8 C
-0.25 C
1935
18.1 C
+0.04 C
1936
18.2 C
+0.17 C
1937
17.9 C
-0.22 C
1938
18.3 C
+0.18 C
1939
18.3 C
+0.18 C
1940
16.7 C
-1.42 C
1941
18.1 C
+0.02 C
1943
18.0 C
-0.10 C
1945
18.7 C
+0.66 C
1946
18.8 C
+0.75 C
1947
18.0 C
-0.12 C
1948
18.5 C
+0.40 C
1949
18.8 C
+0.72 C
1950
18.4 C
+0.36 C
1951
18.6 C
+0.55 C
1952
18.3 C
+0.27 C
1954
18.7 C
+0.66 C
1955
18.4 C
+0.37 C
1956
18.3 C
+0.25 C
1959
18.3 C
+0.25 C
1960
17.6 C
-0.48 C
1961
17.8 C
-0.24 C
1962
18.6 C
+0.54 C
1963
18.0 C
-0.04 C
1964
17.9 C
-0.21 C
1966
17.5 C
-0.55 C
1967
17.5 C
-0.58 C
1968
17.1 C
-1.00 C
1969
17.5 C
-0.62 C
1970
17.9 C
-0.16 C
1973
18.2 C
+0.14 C
The fitted trend in annual mean temperature here over 1901 to 1973 is 0.02 C (-0.06 to 0.10) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.04 F (-0.11 to 0.18) per decade. The slope is a straight line fitted to 56 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Prattville
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.02 C (-0.06 to 0.10) per decade
0.04 F (-0.11 to 0.18) per decade
1901 to 1973
56
Not clearly different from zero
Mean daily maximum
0.11 C (0.03 to 0.19) per decade
0.2 F (0.1 to 0.3) per decade
1901 to 1973
56
Rise
Mean daily minimum
-0.07 C (-0.18 to 0.04) per decade
-0.1 F (-0.3 to 0.1) per decade
1901 to 1973
56
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
1899 to 1977
Yearly extremes at Prattville: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
41.1 C (106.0 F)
1930
36.7 C (98.1 F)
79
Coldest night (TNn)
-16.7 C (1.9 F)
1966
-8.9 C (16.0 F)
79
Wettest day (Rx1day)
229.9 mm (9.1 in)
1961
82.3 mm (3.2 in)
76
Wettest five days (Rx5day)
509.1 mm (20.0 in)
1939
129.4 mm (5.1 in)
76
Longest dry spell (CDD)
58 days
1904
23 days
76
Hottest day (TXx)
The hottest day of the year at Prattville, 1899 to 1977. The record is 41.1 C (106.0 F) in 1930, marked on the chart; the median year is 36.7 C (98.1 F).
Hottest day (TXx) at Prattville by year
Year
Hottest day (TXx)
1899
25.0 C (77.0 F)
1900
36.7 C (98.1 F)
1901
39.4 C (102.9 F)
1902
38.9 C (102.0 F)
1903
35.6 C (96.1 F)
1904
36.7 C (98.1 F)
1905
36.7 C (98.1 F)
1906
38.3 C (100.9 F)
1907
37.2 C (99.0 F)
1908
37.8 C (100.0 F)
1909
37.8 C (100.0 F)
1910
36.7 C (98.1 F)
1911
37.2 C (99.0 F)
1912
35.6 C (96.1 F)
1913
38.9 C (102.0 F)
1914
38.9 C (102.0 F)
1915
37.2 C (99.0 F)
1916
35.6 C (96.1 F)
1917
36.7 C (98.1 F)
1918
37.2 C (99.0 F)
1919
35.0 C (95.0 F)
1920
35.6 C (96.1 F)
1921
37.8 C (100.0 F)
1922
36.7 C (98.1 F)
1923
34.4 C (93.9 F)
1924
36.7 C (98.1 F)
1925
40.6 C (105.1 F)
1926
35.0 C (95.0 F)
1927
38.9 C (102.0 F)
1928
35.0 C (95.0 F)
1929
35.6 C (96.1 F)
1930
41.1 C (106.0 F)
1931
38.9 C (102.0 F)
1932
37.2 C (99.0 F)
1933
38.3 C (100.9 F)
1934
37.8 C (100.0 F)
1935
37.2 C (99.0 F)
1936
38.3 C (100.9 F)
1937
36.1 C (97.0 F)
1938
38.3 C (100.9 F)
1939
36.7 C (98.1 F)
1940
35.0 C (95.0 F)
1941
35.0 C (95.0 F)
1942
35.0 C (95.0 F)
1943
36.1 C (97.0 F)
1944
38.3 C (100.9 F)
1945
37.2 C (99.0 F)
1946
35.0 C (95.0 F)
1947
38.9 C (102.0 F)
1948
37.2 C (99.0 F)
1949
36.7 C (98.1 F)
1950
36.7 C (98.1 F)
1951
37.8 C (100.0 F)
1952
40.0 C (104.0 F)
1953
36.7 C (98.1 F)
1954
40.0 C (104.0 F)
1955
35.6 C (96.1 F)
1956
36.7 C (98.1 F)
1957
27.8 C (82.0 F)
1958
38.3 C (100.9 F)
1959
38.9 C (102.0 F)
1960
37.2 C (99.0 F)
1961
36.1 C (97.0 F)
1962
38.3 C (100.9 F)
1963
40.0 C (104.0 F)
1964
37.8 C (100.0 F)
1965
36.7 C (98.1 F)
1966
40.0 C (104.0 F)
1967
36.7 C (98.1 F)
1968
38.3 C (100.9 F)
1969
39.4 C (102.9 F)
1970
38.9 C (102.0 F)
1971
34.4 C (93.9 F)
1972
36.1 C (97.0 F)
1973
35.6 C (96.1 F)
1974
33.9 C (93.0 F)
1975
35.0 C (95.0 F)
1976
30.6 C (87.1 F)
1977
33.3 C (91.9 F)
Coldest night (TNn)
The coldest night of the year at Prattville, 1899 to 1977. The record is -16.7 C (1.9 F) in 1966, marked on the chart; the median year is -8.9 C (16.0 F).
Coldest night (TNn) at Prattville by year
Year
Coldest night (TNn)
1899
-5.6 C (21.9 F)
1900
-10.6 C (12.9 F)
1901
-12.2 C (10.0 F)
1902
-9.4 C (15.1 F)
1903
-10.0 C (14.0 F)
1904
-7.2 C (19.0 F)
1905
-13.3 C (8.1 F)
1906
-6.1 C (21.0 F)
1907
-5.6 C (21.9 F)
1908
-8.3 C (17.1 F)
1909
-11.7 C (10.9 F)
1910
-8.9 C (16.0 F)
1911
-10.6 C (12.9 F)
1912
-6.7 C (19.9 F)
1913
-5.0 C (23.0 F)
1914
-8.3 C (17.1 F)
1915
-5.0 C (23.0 F)
1916
-6.7 C (19.9 F)
1917
-13.3 C (8.1 F)
1918
-12.2 C (10.0 F)
1919
-12.2 C (10.0 F)
1920
-7.2 C (19.0 F)
1921
-2.2 C (28.0 F)
1922
-6.7 C (19.9 F)
1923
-8.9 C (16.0 F)
1924
-12.8 C (9.0 F)
1925
-11.7 C (10.9 F)
1926
-6.7 C (19.9 F)
1927
-11.1 C (12.0 F)
1928
-12.2 C (10.0 F)
1929
-7.2 C (19.0 F)
1930
-9.4 C (15.1 F)
1931
-6.1 C (21.0 F)
1932
-7.8 C (18.0 F)
1933
-10.6 C (12.9 F)
1934
-9.4 C (15.1 F)
1935
-10.0 C (14.0 F)
1936
-9.4 C (15.1 F)
1937
-10.6 C (12.9 F)
1938
-7.8 C (18.0 F)
1939
-5.6 C (21.9 F)
1940
-13.3 C (8.1 F)
1941
-5.6 C (21.9 F)
1942
-11.1 C (12.0 F)
1943
-9.4 C (15.1 F)
1944
-6.7 C (19.9 F)
1945
-8.3 C (17.1 F)
1946
-3.9 C (25.0 F)
1947
-8.3 C (17.1 F)
1948
-10.6 C (12.9 F)
1949
-4.4 C (24.1 F)
1950
-10.6 C (12.9 F)
1951
-11.7 C (10.9 F)
1952
-5.6 C (21.9 F)
1953
-8.3 C (17.1 F)
1954
-6.7 C (19.9 F)
1955
-7.8 C (18.0 F)
1956
-5.6 C (21.9 F)
1957
-8.9 C (16.0 F)
1958
-6.7 C (19.9 F)
1959
-8.3 C (17.1 F)
1960
-9.4 C (15.1 F)
1961
-10.6 C (12.9 F)
1962
-15.0 C (5.0 F)
1963
-15.6 C (3.9 F)
1964
-12.2 C (10.0 F)
1965
-9.4 C (15.1 F)
1966
-16.7 C (1.9 F)
1967
-8.9 C (16.0 F)
1968
-8.9 C (16.0 F)
1969
-9.4 C (15.1 F)
1970
-15.0 C (5.0 F)
1971
-11.1 C (12.0 F)
1972
-5.6 C (21.9 F)
1973
-7.8 C (18.0 F)
1974
10.0 C (50.0 F)
1975
-8.3 C (17.1 F)
1976
-10.0 C (14.0 F)
1977
-12.8 C (9.0 F)
Wettest day (Rx1day)
The wettest day of the year at Prattville, 1899 to 1977. The record is 229.9 mm (9.1 in) in 1961, marked on the chart; the median year is 82.3 mm (3.2 in).
Wettest day (Rx1day) at Prattville by year
Year
Wettest day (Rx1day)
1899
n/a
1900
n/a
1901
n/a
1902
72.6 mm (2.9 in)
1903
81.8 mm (3.2 in)
1904
58.4 mm (2.3 in)
1905
79.2 mm (3.1 in)
1906
58.4 mm (2.3 in)
1907
69.9 mm (2.8 in)
1908
108.0 mm (4.3 in)
1909
104.1 mm (4.1 in)
1910
71.4 mm (2.8 in)
1911
77.0 mm (3.0 in)
1912
78.5 mm (3.1 in)
1913
64.8 mm (2.6 in)
1914
85.9 mm (3.4 in)
1915
76.2 mm (3.0 in)
1916
136.4 mm (5.4 in)
1917
119.9 mm (4.7 in)
1918
71.4 mm (2.8 in)
1919
160.0 mm (6.3 in)
1920
49.8 mm (2.0 in)
1921
63.5 mm (2.5 in)
1922
85.1 mm (3.4 in)
1923
73.9 mm (2.9 in)
1924
68.1 mm (2.7 in)
1925
105.4 mm (4.1 in)
1926
149.4 mm (5.9 in)
1927
72.1 mm (2.8 in)
1928
151.1 mm (5.9 in)
1929
114.3 mm (4.5 in)
1930
82.8 mm (3.3 in)
1931
48.3 mm (1.9 in)
1932
55.9 mm (2.2 in)
1933
104.1 mm (4.1 in)
1934
78.7 mm (3.1 in)
1935
78.7 mm (3.1 in)
1936
84.1 mm (3.3 in)
1937
111.8 mm (4.4 in)
1938
90.2 mm (3.6 in)
1939
205.7 mm (8.1 in)
1940
116.8 mm (4.6 in)
1941
133.4 mm (5.3 in)
1942
93.5 mm (3.7 in)
1943
110.0 mm (4.3 in)
1944
99.1 mm (3.9 in)
1945
124.5 mm (4.9 in)
1946
90.9 mm (3.6 in)
1947
56.1 mm (2.2 in)
1948
54.6 mm (2.1 in)
1949
87.4 mm (3.4 in)
1950
59.2 mm (2.3 in)
1951
58.4 mm (2.3 in)
1952
45.7 mm (1.8 in)
1953
139.7 mm (5.5 in)
1954
75.7 mm (3.0 in)
1955
102.9 mm (4.1 in)
1956
95.8 mm (3.8 in)
1957
88.6 mm (3.5 in)
1958
65.5 mm (2.6 in)
1959
83.8 mm (3.3 in)
1960
66.3 mm (2.6 in)
1961
229.9 mm (9.1 in)
1962
62.2 mm (2.4 in)
1963
119.4 mm (4.7 in)
1964
180.1 mm (7.1 in)
1965
117.1 mm (4.6 in)
1966
68.6 mm (2.7 in)
1967
83.8 mm (3.3 in)
1968
73.7 mm (2.9 in)
1969
83.8 mm (3.3 in)
1970
84.8 mm (3.3 in)
1971
55.9 mm (2.2 in)
1972
62.0 mm (2.4 in)
1973
91.7 mm (3.6 in)
1974
56.1 mm (2.2 in)
1975
81.3 mm (3.2 in)
1976
58.4 mm (2.3 in)
1977
81.3 mm (3.2 in)
Wettest five days (Rx5day)
The wettest five days of the year at Prattville, 1899 to 1977. The record is 509.1 mm (20.0 in) in 1939, marked on the chart; the median year is 129.4 mm (5.1 in).
Wettest five days (Rx5day) at Prattville by year
Year
Wettest five days (Rx5day)
1899
n/a
1900
n/a
1901
n/a
1902
92.5 mm (3.6 in)
1903
156.7 mm (6.2 in)
1904
104.6 mm (4.1 in)
1905
110.5 mm (4.4 in)
1906
137.9 mm (5.4 in)
1907
98.5 mm (3.9 in)
1908
160.0 mm (6.3 in)
1909
193.1 mm (7.6 in)
1910
129.0 mm (5.1 in)
1911
128.0 mm (5.0 in)
1912
169.5 mm (6.7 in)
1913
54.3 mm (2.1 in)
1914
93.8 mm (3.7 in)
1915
96.5 mm (3.8 in)
1916
258.8 mm (10.2 in)
1917
205.3 mm (8.1 in)
1918
141.7 mm (5.6 in)
1919
247.1 mm (9.7 in)
1920
126.5 mm (5.0 in)
1921
109.2 mm (4.3 in)
1922
165.1 mm (6.5 in)
1923
119.4 mm (4.7 in)
1924
99.9 mm (3.9 in)
1925
217.3 mm (8.6 in)
1926
229.1 mm (9.0 in)
1927
90.6 mm (3.6 in)
1928
258.5 mm (10.2 in)
1929
187.5 mm (7.4 in)
1930
127.3 mm (5.0 in)
1931
94.1 mm (3.7 in)
1932
106.7 mm (4.2 in)
1933
133.3 mm (5.2 in)
1934
121.9 mm (4.8 in)
1935
84.1 mm (3.3 in)
1936
148.7 mm (5.9 in)
1937
161.4 mm (6.4 in)
1938
147.1 mm (5.8 in)
1939
509.1 mm (20.0 in)
1940
158.5 mm (6.2 in)
1941
176.6 mm (7.0 in)
1942
96.0 mm (3.8 in)
1943
188.5 mm (7.4 in)
1944
113.8 mm (4.5 in)
1945
162.6 mm (6.4 in)
1946
141.7 mm (5.6 in)
1947
129.8 mm (5.1 in)
1948
117.6 mm (4.6 in)
1949
139.5 mm (5.5 in)
1950
160.8 mm (6.3 in)
1951
86.8 mm (3.4 in)
1952
59.7 mm (2.4 in)
1953
179.9 mm (7.1 in)
1954
77.5 mm (3.1 in)
1955
200.2 mm (7.9 in)
1956
146.6 mm (5.8 in)
1957
211.3 mm (8.3 in)
1958
110.2 mm (4.3 in)
1959
104.4 mm (4.1 in)
1960
80.6 mm (3.2 in)
1961
388.4 mm (15.3 in)
1962
88.3 mm (3.5 in)
1963
212.6 mm (8.4 in)
1964
302.0 mm (11.9 in)
1965
118.9 mm (4.7 in)
1966
143.5 mm (5.6 in)
1967
181.6 mm (7.1 in)
1968
88.6 mm (3.5 in)
1969
104.9 mm (4.1 in)
1970
137.9 mm (5.4 in)
1971
86.1 mm (3.4 in)
1972
99.6 mm (3.9 in)
1973
119.1 mm (4.7 in)
1974
118.4 mm (4.7 in)
1975
138.2 mm (5.4 in)
1976
63.0 mm (2.5 in)
1977
100.1 mm (3.9 in)
Longest dry spell (CDD)
The longest dry spell of the year at Prattville, 1899 to 1977. The record is 58 days in 1904, marked on the chart; the median year is 23 days.
Longest dry spell (CDD) at Prattville by year
Year
Longest dry spell (CDD)
1899
n/a
1900
n/a
1901
n/a
1902
32 days
1903
22 days
1904
58 days
1905
18 days
1906
26 days
1907
19 days
1908
21 days
1909
23 days
1910
25 days
1911
21 days
1912
19 days
1913
36 days
1914
23 days
1915
27 days
1916
23 days
1917
38 days
1918
24 days
1919
26 days
1920
30 days
1921
31 days
1922
22 days
1923
43 days
1924
56 days
1925
21 days
1926
14 days
1927
29 days
1928
18 days
1929
16 days
1930
38 days
1931
33 days
1932
17 days
1933
18 days
1934
25 days
1935
38 days
1936
26 days
1937
19 days
1938
49 days
1939
30 days
1940
27 days
1941
31 days
1942
31 days
1943
23 days
1944
31 days
1945
24 days
1946
25 days
1947
21 days
1948
22 days
1949
22 days
1950
23 days
1951
23 days
1952
31 days
1953
24 days
1954
20 days
1955
23 days
1956
17 days
1957
13 days
1958
16 days
1959
21 days
1960
15 days
1961
30 days
1962
29 days
1963
30 days
1964
28 days
1965
35 days
1966
16 days
1967
18 days
1968
22 days
1969
19 days
1970
20 days
1971
17 days
1972
14 days
1973
26 days
1974
20 days
1975
19 days
1976
12 days
1977
20 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
56 years with a frost
Across 56 years with a frost, the median last spring frost at Prattville falls on 22 March and the median first autumn frost on 9 November, which leaves a median of 230 days between them.
Fitted over all years, the growing season changes by -1.5 days per decade at this station.
Frost dates and growing season at Prattville
Measure
Median, all years
Earliest period
Recent period (1936 to 1973)
Recent against earliest
Fitted trend
Last spring frost
22 March
n/a
24 March
n/a
+1.0 days per decade
First autumn frost
9 November
n/a
7 November
n/a
-0.4 days per decade
Growing days
230 days
n/a
227 days
n/a
-1.5 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
62 years, 1903 to 1973
A day with at least 85.2 mm (3.4 in) of rain is expected about once in 2 years. A day with at least 232.1 mm (9.1 in) of rain is expected about once in 100 years.
Rainfall return levels at Prattville: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
85.2 mm (3.4 in)
5 years
116.1 mm (4.6 in)
10 years
139.5 mm (5.5 in)
25 years
173.1 mm (6.8 in)
50 years
201.2 mm (7.9 in)
100 years
232.1 mm (9.1 in)
Longer than the 62 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, 62 years of values from 1903 to 1973.
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: 229.9 mm (9.1 in) in 1961; 205.7 mm (8.1 in) in 1939; 180.1 mm (7.1 in) in 1964.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Prattville standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Prattville 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.