Record envelope, standing records and threshold days for Gadsden (USC00013151), Alabama, United States, with 76 years of record.
Key Facts for Gadsden
Gadsden (USC00013151) is a weather station in Alabama, United States at 34.02 latitude and -86.00 longitude, 174 m (571 ft) above sea level.
The station reports from 1893 to 1968, 76 years of record.
1,464 records set at Gadsden still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Gadsden set a daily record precipitation of 89.2 mm (3.5 in) on 12 March 1968.
About the Station
Location: Alabama, United States, 34.02 latitude, -86.00 longitude.
Elevation: 174 m (571 ft).
Period of record: 1893 to 1968, 76 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 Gadsden. 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 Gadsden, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
26.7 C (80.1 F)
-20.0 C (-4.0 F)
n/a
n/a
Feb
28.3 C (82.9 F)
-25.0 C (-13.0 F)
n/a
n/a
Mar
33.9 C (93.0 F)
-14.4 C (6.1 F)
n/a
n/a
Apr
34.4 C (93.9 F)
-4.4 C (24.1 F)
n/a
n/a
May
38.3 C (100.9 F)
1.1 C (34.0 F)
n/a
n/a
Jun
42.2 C (108.0 F)
6.7 C (44.1 F)
n/a
n/a
Jul
42.2 C (108.0 F)
10.6 C (51.1 F)
n/a
n/a
Aug
41.1 C (106.0 F)
9.4 C (48.9 F)
n/a
n/a
Sep
42.2 C (108.0 F)
1.1 C (34.0 F)
n/a
n/a
Oct
37.2 C (99.0 F)
-3.9 C (25.0 F)
n/a
n/a
Nov
30.6 C (87.1 F)
-15.6 C (3.9 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 Gadsden still stand. 1899 holds the most, with 52.
Standing records at Gadsden by the year they were set
Year set
Standing records
1893
8
1894
30
1895
13
1896
19
1897
15
1898
24
1899
52
1900
24
1901
36
1902
48
1903
22
1904
16
1905
16
1906
33
1907
32
1908
31
1909
32
1910
34
1911
33
1912
27
1913
28
1914
29
1915
14
1916
27
1917
33
1918
25
1919
26
1920
13
1921
31
1922
19
1923
16
1924
21
1925
35
1926
23
1927
33
1928
17
1929
26
1930
28
1931
30
1932
23
1933
19
1934
16
1935
21
1936
19
1937
23
1938
12
1939
10
1940
34
1941
18
1942
13
1943
27
1944
20
1945
18
1946
17
1947
23
1948
20
1949
14
1950
39
1951
32
1952
27
All-Time Record Progression
2 new records
2 all-time records were set at Gadsden between 6 September 1925 and 28 December 1942. Each dot is a new record.
When Gadsden set new all-time records
Date
Kind
Detail
1925-09-06
Record high maximum temperature
Record high maximum temperature 42.2 C (108.0 F)
1942-12-28
Record daily precipitation
Record daily precipitation 212.9 mm (8.4 in)
Wettest Day of Each Month
Dec: 212.9 mm (8.4 in)
The wettest day on record for each calendar month at Gadsden. The most was 212.9 mm (8.4 in) on 28 December 1942.
Record daily precipitation for each month at Gadsden
Month
Record daily precipitation (mm)
Date
Jan
142.2 mm (5.6 in)
5 January 1949
Feb
123.4 mm (4.9 in)
21 February 1961
Mar
168.9 mm (6.6 in)
15 March 1899
Apr
116.1 mm (4.6 in)
17 April 1900
May
119.1 mm (4.7 in)
4 May 1935
Jun
69.9 mm (2.8 in)
7 June 1934
Jul
124.0 mm (4.9 in)
7 July 1916
Aug
79.2 mm (3.1 in)
6 August 1960
Sep
85.3 mm (3.4 in)
29 September 1913
Oct
126.5 mm (5.0 in)
10 October 1934
Nov
116.8 mm (4.6 in)
28 November 1948
Dec
212.9 mm (8.4 in)
28 December 1942
Period of Record Coverage
1893 to 1958
Complete yearUnder 90 percent of days
62 years of record at Gadsden, 1893 to 1958. 7 years have data for under 90 percent of days and are left out of rankings: 1893, 1896, 1899, 1923, 1926, 1953, 1958.
Cooler than the station meanWarmer than the station mean
One stripe for each of 48 complete years at Gadsden, 1894 to 1951. Blue stripes are years cooler than the station's own mean of 16.8 C (62.3 F); red stripes are warmer. The coolest year was 1917, at 15.6 C (60.1 F), and the warmest was 1921, at 18.1 C (64.6 F). The strongest colour marks a difference of 1.3 C (2.3 F).
Annual mean temperature at Gadsden as warming stripes, 1894 to 1951
Year
Annual mean temperature
Difference from the station mean
1894
17.3 C
+0.42 C
1895
15.9 C
-0.94 C
1897
17.3 C
+0.50 C
1898
16.2 C
-0.63 C
1900
17.3 C
+0.49 C
1901
15.7 C
-1.17 C
1902
17.0 C
+0.14 C
1903
16.2 C
-0.69 C
1904
16.3 C
-0.52 C
1905
16.6 C
-0.23 C
1906
17.4 C
+0.58 C
1907
17.2 C
+0.31 C
1908
17.5 C
+0.62 C
1909
17.2 C
+0.38 C
1910
16.6 C
-0.29 C
1911
18.1 C
+1.24 C
1912
16.4 C
-0.48 C
1914
16.8 C
-0.01 C
1916
16.5 C
-0.36 C
1917
15.6 C
-1.22 C
1918
16.5 C
-0.31 C
1919
17.0 C
+0.20 C
1921
18.1 C
+1.27 C
1922
18.1 C
+1.25 C
1924
15.8 C
-1.07 C
1928
16.3 C
-0.54 C
1929
16.9 C
+0.01 C
1930
16.7 C
-0.14 C
1931
17.3 C
+0.50 C
1932
17.0 C
+0.17 C
1933
17.7 C
+0.82 C
1934
17.1 C
+0.23 C
1935
17.3 C
+0.46 C
1937
17.2 C
+0.36 C
1938
17.9 C
+1.07 C
1939
17.5 C
+0.65 C
1940
16.0 C
-0.88 C
1941
17.7 C
+0.82 C
1942
17.0 C
+0.14 C
1943
17.4 C
+0.60 C
1944
16.6 C
-0.20 C
1945
16.5 C
-0.31 C
1946
16.6 C
-0.21 C
1947
15.8 C
-1.04 C
1948
16.2 C
-0.61 C
1949
16.6 C
-0.22 C
1950
16.0 C
-0.81 C
1951
16.3 C
-0.52 C
The fitted trend in annual mean temperature here over 1894 to 1951 is 0.00 C (-0.12 to 0.11) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.01 F (-0.21 to 0.19) per decade. The slope is a straight line fitted to 48 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Gadsden
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.00 C (-0.12 to 0.11) per decade
-0.01 F (-0.21 to 0.19) per decade
1894 to 1951
48
Not clearly different from zero
Mean daily maximum
0.07 C (-0.04 to 0.18) per decade
0.1 F (-0.1 to 0.3) per decade
1894 to 1951
48
Not clearly different from zero
Mean daily minimum
-0.1 C (-0.2 to 0.1) per decade
-0.1 F (-0.4 to 0.1) per decade
1894 to 1951
48
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
1893 to 1968
Yearly extremes at Gadsden: 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)
1925
37.8 C (100.0 F)
62
Coldest night (TNn)
-25.0 C (-13.0 F)
1899
-11.7 C (10.9 F)
62
Wettest day (Rx1day)
212.9 mm (8.4 in)
1942
75.8 mm (3.0 in)
76
Wettest five days (Rx5day)
279.3 mm (11.0 in)
1916
131.6 mm (5.2 in)
76
Longest dry spell (CDD)
66 days
1924
21 days
76
Hottest day (TXx)
The hottest day of the year at Gadsden, 1893 to 1968. The record is 42.2 C (108.0 F) in 1925, marked on the chart; the median year is 37.8 C (100.0 F).
Hottest day (TXx) at Gadsden by year
Year
Hottest day (TXx)
1893
36.7 C (98.1 F)
1894
36.7 C (98.1 F)
1895
35.6 C (96.1 F)
1896
33.9 C (93.0 F)
1897
41.1 C (106.0 F)
1898
37.8 C (100.0 F)
1899
38.9 C (102.0 F)
1900
39.4 C (102.9 F)
1901
41.1 C (106.0 F)
1902
41.1 C (106.0 F)
1903
37.8 C (100.0 F)
1904
37.8 C (100.0 F)
1905
38.9 C (102.0 F)
1906
36.7 C (98.1 F)
1907
38.3 C (100.9 F)
1908
38.3 C (100.9 F)
1909
37.2 C (99.0 F)
1910
37.8 C (100.0 F)
1911
37.2 C (99.0 F)
1912
37.2 C (99.0 F)
1913
40.0 C (104.0 F)
1914
40.6 C (105.1 F)
1915
39.4 C (102.9 F)
1916
36.7 C (98.1 F)
1917
38.9 C (102.0 F)
1918
38.9 C (102.0 F)
1919
37.8 C (100.0 F)
1920
37.8 C (100.0 F)
1921
39.4 C (102.9 F)
1922
37.2 C (99.0 F)
1923
35.6 C (96.1 F)
1924
40.0 C (104.0 F)
1925
42.2 C (108.0 F)
1926
39.4 C (102.9 F)
1927
39.4 C (102.9 F)
1928
36.1 C (97.0 F)
1929
37.2 C (99.0 F)
1930
42.2 C (108.0 F)
1931
42.2 C (108.0 F)
1932
37.8 C (100.0 F)
1933
38.9 C (102.0 F)
1934
38.3 C (100.9 F)
1935
40.0 C (104.0 F)
1936
40.0 C (104.0 F)
1937
37.2 C (99.0 F)
1938
39.4 C (102.9 F)
1939
37.8 C (100.0 F)
1940
37.2 C (99.0 F)
1941
37.2 C (99.0 F)
1942
36.7 C (98.1 F)
1943
40.0 C (104.0 F)
1944
40.6 C (105.1 F)
1945
37.2 C (99.0 F)
1946
35.0 C (95.0 F)
1947
40.0 C (104.0 F)
1948
37.2 C (99.0 F)
1949
37.8 C (100.0 F)
1950
36.7 C (98.1 F)
1951
38.3 C (100.9 F)
1952
41.1 C (106.0 F)
1953
26.7 C (80.1 F)
1954
n/a
1955
n/a
1956
n/a
1957
n/a
1958
10.0 C (50.0 F)
1959
n/a
1960
n/a
1961
n/a
1962
n/a
1963
n/a
1964
n/a
1965
n/a
1966
n/a
1967
n/a
1968
n/a
Coldest night (TNn)
The coldest night of the year at Gadsden, 1893 to 1968. The record is -25.0 C (-13.0 F) in 1899, marked on the chart; the median year is -11.7 C (10.9 F).
Coldest night (TNn) at Gadsden by year
Year
Coldest night (TNn)
1893
-6.1 C (21.0 F)
1894
-13.3 C (8.1 F)
1895
-16.7 C (1.9 F)
1896
-10.6 C (12.9 F)
1897
-16.1 C (3.0 F)
1898
-10.0 C (14.0 F)
1899
-25.0 C (-13.0 F)
1900
-12.8 C (9.0 F)
1901
-13.3 C (8.1 F)
1902
-10.0 C (14.0 F)
1903
-12.2 C (10.0 F)
1904
-9.4 C (15.1 F)
1905
-18.3 C (-0.9 F)
1906
-10.6 C (12.9 F)
1907
-6.7 C (19.9 F)
1908
-9.4 C (15.1 F)
1909
-11.7 C (10.9 F)
1910
-9.4 C (15.1 F)
1911
-11.7 C (10.9 F)
1912
-12.8 C (9.0 F)
1913
-5.6 C (21.9 F)
1914
-12.2 C (10.0 F)
1915
-5.6 C (21.9 F)
1916
-10.6 C (12.9 F)
1917
-14.4 C (6.1 F)
1918
-16.7 C (1.9 F)
1919
-15.0 C (5.0 F)
1920
-11.7 C (10.9 F)
1921
-3.3 C (26.1 F)
1922
-6.7 C (19.9 F)
1923
-10.0 C (14.0 F)
1924
-16.7 C (1.9 F)
1925
-14.4 C (6.1 F)
1926
-11.7 C (10.9 F)
1927
-13.9 C (7.0 F)
1928
-15.6 C (3.9 F)
1929
-12.8 C (9.0 F)
1930
-11.1 C (12.0 F)
1931
-8.3 C (17.1 F)
1932
-8.3 C (17.1 F)
1933
-13.9 C (7.0 F)
1934
-12.8 C (9.0 F)
1935
-11.1 C (12.0 F)
1936
-17.8 C (0.0 F)
1937
-12.2 C (10.0 F)
1938
-8.9 C (16.0 F)
1939
-8.3 C (17.1 F)
1940
-20.0 C (-4.0 F)
1941
-5.6 C (21.9 F)
1942
-12.8 C (9.0 F)
1943
-10.6 C (12.9 F)
1944
-10.0 C (14.0 F)
1945
-11.7 C (10.9 F)
1946
-10.0 C (14.0 F)
1947
-11.1 C (12.0 F)
1948
-12.2 C (10.0 F)
1949
-8.9 C (16.0 F)
1950
-15.6 C (3.9 F)
1951
-15.0 C (5.0 F)
1952
-7.8 C (18.0 F)
1953
-6.1 C (21.0 F)
1954
n/a
1955
n/a
1956
n/a
1957
n/a
1958
2.8 C (37.0 F)
1959
n/a
1960
n/a
1961
n/a
1962
n/a
1963
n/a
1964
n/a
1965
n/a
1966
n/a
1967
n/a
1968
n/a
Wettest day (Rx1day)
The wettest day of the year at Gadsden, 1893 to 1968. The record is 212.9 mm (8.4 in) in 1942, marked on the chart; the median year is 75.8 mm (3.0 in).
Wettest day (Rx1day) at Gadsden by year
Year
Wettest day (Rx1day)
1893
48.0 mm (1.9 in)
1894
56.6 mm (2.2 in)
1895
61.0 mm (2.4 in)
1896
56.4 mm (2.2 in)
1897
65.3 mm (2.6 in)
1898
115.6 mm (4.6 in)
1899
168.9 mm (6.6 in)
1900
116.1 mm (4.6 in)
1901
112.0 mm (4.4 in)
1902
89.7 mm (3.5 in)
1903
55.9 mm (2.2 in)
1904
51.8 mm (2.0 in)
1905
70.1 mm (2.8 in)
1906
76.7 mm (3.0 in)
1907
81.3 mm (3.2 in)
1908
101.6 mm (4.0 in)
1909
70.1 mm (2.8 in)
1910
52.8 mm (2.1 in)
1911
68.6 mm (2.7 in)
1912
72.6 mm (2.9 in)
1913
85.3 mm (3.4 in)
1914
63.5 mm (2.5 in)
1915
79.8 mm (3.1 in)
1916
124.0 mm (4.9 in)
1917
89.4 mm (3.5 in)
1918
119.4 mm (4.7 in)
1919
106.7 mm (4.2 in)
1920
88.9 mm (3.5 in)
1921
85.1 mm (3.4 in)
1922
124.0 mm (4.9 in)
1923
57.9 mm (2.3 in)
1924
114.3 mm (4.5 in)
1925
59.2 mm (2.3 in)
1926
65.0 mm (2.6 in)
1927
62.5 mm (2.5 in)
1928
59.2 mm (2.3 in)
1929
69.3 mm (2.7 in)
1930
118.1 mm (4.6 in)
1931
59.4 mm (2.3 in)
1932
116.8 mm (4.6 in)
1933
69.3 mm (2.7 in)
1934
126.5 mm (5.0 in)
1935
119.1 mm (4.7 in)
1936
116.3 mm (4.6 in)
1937
68.1 mm (2.7 in)
1938
101.6 mm (4.0 in)
1939
54.1 mm (2.1 in)
1940
74.2 mm (2.9 in)
1941
66.8 mm (2.6 in)
1942
212.9 mm (8.4 in)
1943
74.9 mm (2.9 in)
1944
70.9 mm (2.8 in)
1945
88.4 mm (3.5 in)
1946
90.7 mm (3.6 in)
1947
70.9 mm (2.8 in)
1948
116.8 mm (4.6 in)
1949
142.2 mm (5.6 in)
1950
142.5 mm (5.6 in)
1951
157.7 mm (6.2 in)
1952
58.4 mm (2.3 in)
1953
53.3 mm (2.1 in)
1954
96.8 mm (3.8 in)
1955
61.0 mm (2.4 in)
1956
74.4 mm (2.9 in)
1957
74.7 mm (2.9 in)
1958
87.1 mm (3.4 in)
1959
62.2 mm (2.4 in)
1960
80.0 mm (3.1 in)
1961
151.6 mm (6.0 in)
1962
100.1 mm (3.9 in)
1963
65.0 mm (2.6 in)
1964
78.7 mm (3.1 in)
1965
48.5 mm (1.9 in)
1966
67.3 mm (2.6 in)
1967
69.3 mm (2.7 in)
1968
89.2 mm (3.5 in)
Wettest five days (Rx5day)
The wettest five days of the year at Gadsden, 1893 to 1968. The record is 279.3 mm (11.0 in) in 1916, marked on the chart; the median year is 131.6 mm (5.2 in).
Wettest five days (Rx5day) at Gadsden by year
Year
Wettest five days (Rx5day)
1893
63.5 mm (2.5 in)
1894
92.4 mm (3.6 in)
1895
102.4 mm (4.0 in)
1896
80.2 mm (3.2 in)
1897
91.5 mm (3.6 in)
1898
252.1 mm (9.9 in)
1899
214.3 mm (8.4 in)
1900
165.7 mm (6.5 in)
1901
144.6 mm (5.7 in)
1902
143.8 mm (5.7 in)
1903
106.1 mm (4.2 in)
1904
75.6 mm (3.0 in)
1905
116.3 mm (4.6 in)
1906
147.9 mm (5.8 in)
1907
110.2 mm (4.3 in)
1908
114.3 mm (4.5 in)
1909
156.0 mm (6.1 in)
1910
100.1 mm (3.9 in)
1911
147.3 mm (5.8 in)
1912
101.3 mm (4.0 in)
1913
117.3 mm (4.6 in)
1914
88.9 mm (3.5 in)
1915
103.1 mm (4.1 in)
1916
279.3 mm (11.0 in)
1917
109.7 mm (4.3 in)
1918
152.2 mm (6.0 in)
1919
167.6 mm (6.6 in)
1920
184.9 mm (7.3 in)
1921
169.9 mm (6.7 in)
1922
180.2 mm (7.1 in)
1923
92.0 mm (3.6 in)
1924
136.7 mm (5.4 in)
1925
113.6 mm (4.5 in)
1926
144.0 mm (5.7 in)
1927
107.0 mm (4.2 in)
1928
108.0 mm (4.3 in)
1929
197.6 mm (7.8 in)
1930
127.2 mm (5.0 in)
1931
102.6 mm (4.0 in)
1932
152.2 mm (6.0 in)
1933
121.4 mm (4.8 in)
1934
218.4 mm (8.6 in)
1935
160.5 mm (6.3 in)
1936
145.2 mm (5.7 in)
1937
178.3 mm (7.0 in)
1938
132.1 mm (5.2 in)
1939
95.2 mm (3.7 in)
1940
121.5 mm (4.8 in)
1941
157.7 mm (6.2 in)
1942
267.5 mm (10.5 in)
1943
243.4 mm (9.6 in)
1944
133.0 mm (5.2 in)
1945
104.7 mm (4.1 in)
1946
201.6 mm (7.9 in)
1947
156.2 mm (6.1 in)
1948
185.7 mm (7.3 in)
1949
201.9 mm (7.9 in)
1950
153.9 mm (6.1 in)
1951
190.5 mm (7.5 in)
1952
67.4 mm (2.7 in)
1953
139.6 mm (5.5 in)
1954
109.5 mm (4.3 in)
1955
123.3 mm (4.9 in)
1956
116.5 mm (4.6 in)
1957
128.2 mm (5.0 in)
1958
141.5 mm (5.6 in)
1959
105.0 mm (4.1 in)
1960
121.1 mm (4.8 in)
1961
267.0 mm (10.5 in)
1962
131.1 mm (5.2 in)
1963
158.8 mm (6.3 in)
1964
130.0 mm (5.1 in)
1965
70.9 mm (2.8 in)
1966
143.2 mm (5.6 in)
1967
112.8 mm (4.4 in)
1968
89.2 mm (3.5 in)
Longest dry spell (CDD)
The longest dry spell of the year at Gadsden, 1893 to 1968. The record is 66 days in 1924, marked on the chart; the median year is 21 days.
Longest dry spell (CDD) at Gadsden by year
Year
Longest dry spell (CDD)
1893
2 days
1894
8 days
1895
23 days
1896
17 days
1897
37 days
1898
34 days
1899
18 days
1900
19 days
1901
21 days
1902
31 days
1903
21 days
1904
27 days
1905
20 days
1906
18 days
1907
18 days
1908
18 days
1909
26 days
1910
21 days
1911
19 days
1912
13 days
1913
19 days
1914
24 days
1915
18 days
1916
20 days
1917
19 days
1918
16 days
1919
34 days
1920
39 days
1921
33 days
1922
14 days
1923
26 days
1924
66 days
1925
32 days
1926
16 days
1927
30 days
1928
28 days
1929
18 days
1930
33 days
1931
22 days
1932
17 days
1933
28 days
1934
19 days
1935
39 days
1936
34 days
1937
14 days
1938
23 days
1939
26 days
1940
24 days
1941
16 days
1942
23 days
1943
25 days
1944
26 days
1945
16 days
1946
17 days
1947
16 days
1948
20 days
1949
12 days
1950
26 days
1951
24 days
1952
30 days
1953
29 days
1954
27 days
1955
20 days
1956
18 days
1957
17 days
1958
17 days
1959
20 days
1960
19 days
1961
31 days
1962
18 days
1963
33 days
1964
23 days
1965
18 days
1966
15 days
1967
25 days
1968
13 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
48 years with a frost
Across 48 years with a frost, the median last spring frost at Gadsden falls on 31 March and the median first autumn frost on 2 November, which leaves a median of 214 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 Gadsden
Measure
Median, all years
Earliest period
Recent period (1916 to 1951)
Recent against earliest
Fitted trend
Last spring frost
31 March
n/a
31 March
n/a
+1.6 days per decade
First autumn frost
2 November
n/a
2 November
n/a
-0.7 days per decade
Growing days
214 days
n/a
214 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
64 years, 1898 to 1967
A day with at least 79.2 mm (3.1 in) of rain is expected about once in 2 years. A day with at least 210.4 mm (8.3 in) of rain is expected about once in 100 years.
Rainfall return levels at Gadsden: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
79.2 mm (3.1 in)
5 years
105.8 mm (4.2 in)
10 years
126.4 mm (5.0 in)
25 years
156.4 mm (6.2 in)
50 years
181.9 mm (7.2 in)
100 years
210.4 mm (8.3 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 1898 to 1967.
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: 212.9 mm (8.4 in) in 1942; 157.7 mm (6.2 in) in 1951; 151.6 mm (6.0 in) in 1961.
Station Changes
2 suspected
2 changes were suspected in the annual mean temperature of Gadsden, at 1935 and 1944. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1935 ran 0.4 C (0.7 F) higher than in the years before (likely change).
Relative to 5 neighbouring stations, the station's annual mean temperature from 1944 ran 0.6 C (1.1 F) lower than in the years before (possible change).
Suspected changes in the annual mean temperature at Gadsden, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1935
+0.4
+0.7
likely
5
1944
-0.6
-1.1
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 Gadsden standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Gadsden 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.