Record envelope, standing records and threshold days for Alapaha Exp STN (USC00090131), Georgia, United States, with 84 years of record.
Key Facts for Alapaha Exp STN
Alapaha Exp STN (USC00090131) is a weather station in Georgia, United States at 31.35 latitude and -83.22 longitude, 88 m (289 ft) above sea level.
The station reports from 1891 to 1974, 84 years of record.
1,464 records set at Alapaha Exp STN still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Alapaha Exp STN set a daily record low maximum temperature of 8.3 C (46.9 F) on 2 December 1974.
About the Station
Location: Georgia, United States, 31.35 latitude, -83.22 longitude.
Elevation: 88 m (289 ft).
Period of record: 1891 to 1974, 84 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 Alapaha Exp STN. 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 Alapaha Exp STN, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
31.7 C (89.1 F)
-12.8 C (9.0 F)
n/a
n/a
Feb
30.6 C (87.1 F)
-11.7 C (10.9 F)
n/a
n/a
Mar
35.6 C (96.1 F)
-6.7 C (19.9 F)
n/a
n/a
Apr
36.1 C (97.0 F)
-1.1 C (30.0 F)
n/a
n/a
May
40.0 C (104.0 F)
4.4 C (39.9 F)
n/a
n/a
Jun
41.7 C (107.1 F)
6.7 C (44.1 F)
n/a
n/a
Jul
41.1 C (106.0 F)
13.3 C (55.9 F)
n/a
n/a
Aug
40.6 C (105.1 F)
12.8 C (55.0 F)
n/a
n/a
Sep
41.7 C (107.1 F)
4.4 C (39.9 F)
n/a
n/a
Oct
36.7 C (98.1 F)
-3.9 C (25.0 F)
n/a
n/a
Nov
32.8 C (91.0 F)
-9.4 C (15.1 F)
n/a
n/a
Dec
31.7 C (89.1 F)
-13.3 C (8.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Alapaha Exp STN still stand. 1925 holds the most, with 70.
Standing records at Alapaha Exp STN by the year they were set
Year set
Standing records
1892
1
1893
3
1895
1
1897
3
1898
1
1900
1
1901
24
1902
11
1903
11
1904
11
1905
15
1906
20
1907
8
1908
24
1909
40
1910
37
1911
20
1912
21
1913
28
1914
27
1915
26
1916
16
1917
32
1918
34
1919
25
1920
25
1921
26
1922
22
1923
12
1924
13
1925
70
1926
21
1927
66
1928
15
1929
18
1930
11
1931
17
1932
39
1933
26
1934
19
1935
18
1936
19
1937
28
1938
27
1939
14
1940
27
1941
19
1942
11
1943
20
1944
10
1945
13
1946
15
1947
22
1948
13
1949
6
1950
25
1951
23
1952
16
1953
14
1954
32
1955
20
1956
19
1957
12
1958
17
1959
10
1960
17
1961
23
1962
13
1963
12
1964
11
1965
6
1966
9
1967
22
1968
10
1969
4
1970
9
1971
13
1972
5
1973
9
1974
11
All-Time Record Progression
3 new records
3 all-time records were set at Alapaha Exp STN between 10 August 1928 and 13 December 1962. Each dot is a new record.
When Alapaha Exp STN set new all-time records
Date
Kind
Detail
1928-08-10
Record daily precipitation
Record daily precipitation 138.4 mm (5.4 in)
1948-04-01
Record daily precipitation
Record daily precipitation 212.1 mm (8.4 in)
1962-12-13
Record low minimum temperature
Record low minimum temperature -13.3 C (8.1 F)
Wettest Day of Each Month
Apr: 212.1 mm (8.4 in)
The wettest day on record for each calendar month at Alapaha Exp STN. The most was 212.1 mm (8.4 in) on 1 April 1948.
Record daily precipitation for each month at Alapaha Exp STN
Month
Record daily precipitation (mm)
Date
Jan
104.6 mm (4.1 in)
4 January 1942
Feb
93.5 mm (3.7 in)
9 February 1959
Mar
129.0 mm (5.1 in)
7 March 1944
Apr
212.1 mm (8.4 in)
1 April 1948
May
121.9 mm (4.8 in)
29 May 1970
Jun
94.0 mm (3.7 in)
1 June 1901
Jul
101.6 mm (4.0 in)
10 July 1916
Aug
138.4 mm (5.4 in)
10 August 1928
Sep
98.0 mm (3.9 in)
15 September 1903
Oct
119.4 mm (4.7 in)
9 October 1894
Nov
78.0 mm (3.1 in)
1 November 1947
Dec
198.1 mm (7.8 in)
4 December 1964
Period of Record Coverage
1891 to 1974
Complete yearUnder 90 percent of days
82 years of record at Alapaha Exp STN, 1891 to 1974. 15 years have data for under 90 percent of days and are left out of rankings: 1891, 1892, 1893, 1894, 1895, 1897, 1898, 1900 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 57 complete years at Alapaha Exp STN, 1901 to 1974. Blue stripes are years cooler than the station's own mean of 19.2 C (66.6 F); red stripes are warmer. The coolest year was 1958, at 17.6 C (63.6 F), and the warmest was 1927, at 21.0 C (69.8 F). The strongest colour marks a difference of 1.8 C (3.2 F).
Annual mean temperature at Alapaha Exp STN as warming stripes, 1901 to 1974
Year
Annual mean temperature
Difference from the station mean
1901
17.6 C
-1.58 C
1902
18.7 C
-0.54 C
1905
19.0 C
-0.18 C
1906
19.0 C
-0.16 C
1909
20.5 C
+1.33 C
1910
19.7 C
+0.52 C
1913
19.0 C
-0.17 C
1914
18.4 C
-0.77 C
1915
18.7 C
-0.48 C
1916
19.2 C
-0.01 C
1917
18.8 C
-0.43 C
1918
19.4 C
+0.18 C
1919
20.0 C
+0.81 C
1920
18.8 C
-0.36 C
1921
20.8 C
+1.60 C
1922
20.6 C
+1.44 C
1923
19.8 C
+0.64 C
1924
19.1 C
-0.15 C
1925
20.5 C
+1.26 C
1926
19.8 C
+0.62 C
1927
21.0 C
+1.78 C
1928
19.4 C
+0.15 C
1929
19.3 C
+0.07 C
1930
19.0 C
-0.22 C
1931
19.9 C
+0.73 C
1932
20.4 C
+1.18 C
1933
20.5 C
+1.30 C
1936
20.4 C
+1.24 C
1937
20.2 C
+1.01 C
1938
20.6 C
+1.36 C
1939
20.1 C
+0.85 C
1940
19.1 C
-0.10 C
1941
19.7 C
+0.49 C
1943
18.6 C
-0.57 C
1945
19.1 C
-0.09 C
1946
19.4 C
+0.24 C
1948
19.7 C
+0.45 C
1949
19.7 C
+0.53 C
1950
18.6 C
-0.62 C
1951
18.7 C
-0.54 C
1953
18.4 C
-0.78 C
1954
18.5 C
-0.67 C
1955
18.5 C
-0.68 C
1956
18.5 C
-0.66 C
1957
19.0 C
-0.22 C
1958
17.6 C
-1.64 C
1959
18.1 C
-1.07 C
1960
17.8 C
-1.38 C
1962
18.5 C
-0.70 C
1963
17.9 C
-1.31 C
1964
18.3 C
-0.86 C
1965
18.8 C
-0.40 C
1966
18.3 C
-0.95 C
1968
18.4 C
-0.83 C
1969
18.4 C
-0.79 C
1970
18.8 C
-0.41 C
1974
19.6 C
+0.39 C
The annual mean temperature here has fallen by 0.16 C (0.05 to 0.26) per decade over 1901 to 1974. In Fahrenheit: 0.3 F (0.1 to 0.5) per decade. The slope is a straight line fitted to 57 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Alapaha Exp STN
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.15 C (-0.26 to -0.05) per decade
-0.3 F (-0.5 to -0.1) per decade
1901 to 1974
57
Fall
Mean daily maximum
-0.04 C (-0.15 to 0.07) per decade
-0.1 F (-0.3 to 0.1) per decade
1901 to 1974
57
Not clearly different from zero
Mean daily minimum
-0.3 C (-0.4 to -0.1) per decade
-0.5 F (-0.7 to -0.2) per decade
1901 to 1974
57
Fall
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
1891 to 1974
Yearly extremes at Alapaha Exp STN: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
41.7 C (107.1 F)
1914
37.8 C (100.0 F)
82
Coldest night (TNn)
-13.3 C (8.1 F)
1962
-7.2 C (19.0 F)
82
Wettest day (Rx1day)
212.1 mm (8.4 in)
1948
71.1 mm (2.8 in)
83
Wettest five days (Rx5day)
258.1 mm (10.2 in)
1970
123.4 mm (4.9 in)
83
Longest dry spell (CDD)
47 days
1901
24 days
83
Hottest day (TXx)
The hottest day of the year at Alapaha Exp STN, 1891 to 1974. The record is 41.7 C (107.1 F) in 1914, marked on the chart; the median year is 37.8 C (100.0 F).
Hottest day (TXx) at Alapaha Exp STN by year
Year
Hottest day (TXx)
1891
26.7 C (80.1 F)
1892
36.1 C (97.0 F)
1893
37.8 C (100.0 F)
1894
25.6 C (78.1 F)
1895
36.7 C (98.1 F)
1896
n/a
1897
23.9 C (75.0 F)
1898
27.2 C (81.0 F)
1899
n/a
1900
27.8 C (82.0 F)
1901
38.9 C (102.0 F)
1902
38.3 C (100.9 F)
1903
37.2 C (99.0 F)
1904
36.1 C (97.0 F)
1905
37.2 C (99.0 F)
1906
37.2 C (99.0 F)
1907
37.8 C (100.0 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
36.7 C (98.1 F)
1913
40.0 C (104.0 F)
1914
41.7 C (107.1 F)
1915
39.4 C (102.9 F)
1916
37.8 C (100.0 F)
1917
38.9 C (102.0 F)
1918
38.9 C (102.0 F)
1919
38.3 C (100.9 F)
1920
39.4 C (102.9 F)
1921
39.4 C (102.9 F)
1922
38.3 C (100.9 F)
1923
37.8 C (100.0 F)
1924
39.4 C (102.9 F)
1925
41.7 C (107.1 F)
1926
38.9 C (102.0 F)
1927
40.6 C (105.1 F)
1928
38.3 C (100.9 F)
1929
35.0 C (95.0 F)
1930
37.8 C (100.0 F)
1931
38.3 C (100.9 F)
1932
40.0 C (104.0 F)
1933
37.8 C (100.0 F)
1934
37.8 C (100.0 F)
1935
36.1 C (97.0 F)
1936
39.4 C (102.9 F)
1937
38.3 C (100.9 F)
1938
40.6 C (105.1 F)
1939
38.9 C (102.0 F)
1940
41.1 C (106.0 F)
1941
38.3 C (100.9 F)
1942
41.1 C (106.0 F)
1943
40.0 C (104.0 F)
1944
37.8 C (100.0 F)
1945
36.7 C (98.1 F)
1946
35.0 C (95.0 F)
1947
35.6 C (96.1 F)
1948
36.7 C (98.1 F)
1949
36.7 C (98.1 F)
1950
39.4 C (102.9 F)
1951
38.3 C (100.9 F)
1952
41.7 C (107.1 F)
1953
37.2 C (99.0 F)
1954
40.0 C (104.0 F)
1955
36.7 C (98.1 F)
1956
36.7 C (98.1 F)
1957
36.7 C (98.1 F)
1958
35.6 C (96.1 F)
1959
37.8 C (100.0 F)
1960
36.1 C (97.0 F)
1961
38.9 C (102.0 F)
1962
37.2 C (99.0 F)
1963
36.7 C (98.1 F)
1964
36.7 C (98.1 F)
1965
36.1 C (97.0 F)
1966
36.7 C (98.1 F)
1967
35.6 C (96.1 F)
1968
38.9 C (102.0 F)
1969
36.1 C (97.0 F)
1970
36.7 C (98.1 F)
1971
35.6 C (96.1 F)
1972
36.1 C (97.0 F)
1973
34.4 C (93.9 F)
1974
35.0 C (95.0 F)
Coldest night (TNn)
The coldest night of the year at Alapaha Exp STN, 1891 to 1974. The record is -13.3 C (8.1 F) in 1962, marked on the chart; the median year is -7.2 C (19.0 F).
Coldest night (TNn) at Alapaha Exp STN by year
Year
Coldest night (TNn)
1891
-3.3 C (26.1 F)
1892
-5.6 C (21.9 F)
1893
-8.9 C (16.0 F)
1894
-2.8 C (27.0 F)
1895
5.6 C (42.1 F)
1896
n/a
1897
-2.2 C (28.0 F)
1898
-7.2 C (19.0 F)
1899
n/a
1900
-1.7 C (28.9 F)
1901
-9.4 C (15.1 F)
1902
-7.2 C (19.0 F)
1903
-6.7 C (19.9 F)
1904
-5.0 C (23.0 F)
1905
-11.1 C (12.0 F)
1906
-7.2 C (19.0 F)
1907
-4.4 C (24.1 F)
1908
-7.2 C (19.0 F)
1909
-9.4 C (15.1 F)
1910
-5.0 C (23.0 F)
1911
-6.7 C (19.9 F)
1912
-6.1 C (21.0 F)
1913
-6.7 C (19.9 F)
1914
-5.6 C (21.9 F)
1915
-5.6 C (21.9 F)
1916
-5.6 C (21.9 F)
1917
-11.7 C (10.9 F)
1918
-9.4 C (15.1 F)
1919
-8.3 C (17.1 F)
1920
-6.7 C (19.9 F)
1921
-1.7 C (28.9 F)
1922
-4.4 C (24.1 F)
1923
-5.6 C (21.9 F)
1924
-10.0 C (14.0 F)
1925
-8.3 C (17.1 F)
1926
-3.9 C (25.0 F)
1927
-10.0 C (14.0 F)
1928
-9.4 C (15.1 F)
1929
-6.7 C (19.9 F)
1930
-5.0 C (23.0 F)
1931
-5.0 C (23.0 F)
1932
-5.6 C (21.9 F)
1933
-7.8 C (18.0 F)
1934
-7.8 C (18.0 F)
1935
-7.2 C (19.0 F)
1936
-6.7 C (19.9 F)
1937
-7.8 C (18.0 F)
1938
-6.1 C (21.0 F)
1939
-5.0 C (23.0 F)
1940
-10.6 C (12.9 F)
1941
-4.4 C (24.1 F)
1942
-7.8 C (18.0 F)
1943
-10.0 C (14.0 F)
1944
-8.3 C (17.1 F)
1945
-7.2 C (19.0 F)
1946
-4.4 C (24.1 F)
1947
-8.9 C (16.0 F)
1948
-9.4 C (15.1 F)
1949
-5.0 C (23.0 F)
1950
-9.4 C (15.1 F)
1951
-8.9 C (16.0 F)
1952
-6.1 C (21.0 F)
1953
-8.3 C (17.1 F)
1954
-6.7 C (19.9 F)
1955
-8.3 C (17.1 F)
1956
-7.8 C (18.0 F)
1957
-8.3 C (17.1 F)
1958
-9.4 C (15.1 F)
1959
-11.1 C (12.0 F)
1960
-9.4 C (15.1 F)
1961
-9.4 C (15.1 F)
1962
-13.3 C (8.1 F)
1963
-10.6 C (12.9 F)
1964
-7.8 C (18.0 F)
1965
-6.7 C (19.9 F)
1966
-12.8 C (9.0 F)
1967
-7.2 C (19.0 F)
1968
-6.7 C (19.9 F)
1969
-6.7 C (19.9 F)
1970
-11.1 C (12.0 F)
1971
-2.8 C (27.0 F)
1972
-6.7 C (19.9 F)
1973
-5.0 C (23.0 F)
1974
-6.1 C (21.0 F)
Wettest day (Rx1day)
The wettest day of the year at Alapaha Exp STN, 1891 to 1974. The record is 212.1 mm (8.4 in) in 1948, marked on the chart; the median year is 71.1 mm (2.8 in).
Wettest day (Rx1day) at Alapaha Exp STN by year
Year
Wettest day (Rx1day)
1891
n/a
1892
27.7 mm (1.1 in)
1893
68.6 mm (2.7 in)
1894
119.4 mm (4.7 in)
1895
118.4 mm (4.7 in)
1896
43.9 mm (1.7 in)
1897
33.5 mm (1.3 in)
1898
51.6 mm (2.0 in)
1899
57.2 mm (2.3 in)
1900
59.2 mm (2.3 in)
1901
94.0 mm (3.7 in)
1902
78.7 mm (3.1 in)
1903
98.0 mm (3.9 in)
1904
55.9 mm (2.2 in)
1905
64.8 mm (2.6 in)
1906
57.2 mm (2.3 in)
1907
61.0 mm (2.4 in)
1908
51.6 mm (2.0 in)
1909
50.8 mm (2.0 in)
1910
48.8 mm (1.9 in)
1911
51.1 mm (2.0 in)
1912
60.2 mm (2.4 in)
1913
64.3 mm (2.5 in)
1914
90.2 mm (3.6 in)
1915
64.3 mm (2.5 in)
1916
101.6 mm (4.0 in)
1917
71.1 mm (2.8 in)
1918
48.3 mm (1.9 in)
1919
80.5 mm (3.2 in)
1920
73.7 mm (2.9 in)
1921
83.8 mm (3.3 in)
1922
63.5 mm (2.5 in)
1923
94.0 mm (3.7 in)
1924
95.3 mm (3.8 in)
1925
104.4 mm (4.1 in)
1926
84.6 mm (3.3 in)
1927
66.0 mm (2.6 in)
1928
138.4 mm (5.4 in)
1929
89.7 mm (3.5 in)
1930
50.8 mm (2.0 in)
1931
54.6 mm (2.1 in)
1932
66.0 mm (2.6 in)
1933
58.4 mm (2.3 in)
1934
45.7 mm (1.8 in)
1935
63.5 mm (2.5 in)
1936
101.6 mm (4.0 in)
1937
99.1 mm (3.9 in)
1938
76.2 mm (3.0 in)
1939
66.5 mm (2.6 in)
1940
92.7 mm (3.6 in)
1941
83.8 mm (3.3 in)
1942
104.6 mm (4.1 in)
1943
63.5 mm (2.5 in)
1944
129.0 mm (5.1 in)
1945
67.1 mm (2.6 in)
1946
57.2 mm (2.3 in)
1947
134.6 mm (5.3 in)
1948
212.1 mm (8.4 in)
1949
51.1 mm (2.0 in)
1950
66.0 mm (2.6 in)
1951
109.2 mm (4.3 in)
1952
46.0 mm (1.8 in)
1953
92.2 mm (3.6 in)
1954
45.7 mm (1.8 in)
1955
64.5 mm (2.5 in)
1956
86.4 mm (3.4 in)
1957
59.7 mm (2.4 in)
1958
78.0 mm (3.1 in)
1959
114.3 mm (4.5 in)
1960
71.1 mm (2.8 in)
1961
86.1 mm (3.4 in)
1962
90.9 mm (3.6 in)
1963
81.3 mm (3.2 in)
1964
198.1 mm (7.8 in)
1965
73.9 mm (2.9 in)
1966
84.3 mm (3.3 in)
1967
61.5 mm (2.4 in)
1968
61.0 mm (2.4 in)
1969
57.2 mm (2.3 in)
1970
121.9 mm (4.8 in)
1971
93.2 mm (3.7 in)
1972
77.0 mm (3.0 in)
1973
80.5 mm (3.2 in)
1974
66.0 mm (2.6 in)
Wettest five days (Rx5day)
The wettest five days of the year at Alapaha Exp STN, 1891 to 1974. The record is 258.1 mm (10.2 in) in 1970, marked on the chart; the median year is 123.4 mm (4.9 in).
Wettest five days (Rx5day) at Alapaha Exp STN by year
Year
Wettest five days (Rx5day)
1891
n/a
1892
56.7 mm (2.2 in)
1893
139.9 mm (5.5 in)
1894
130.1 mm (5.1 in)
1895
127.0 mm (5.0 in)
1896
43.9 mm (1.7 in)
1897
55.9 mm (2.2 in)
1898
141.2 mm (5.6 in)
1899
73.1 mm (2.9 in)
1900
78.2 mm (3.1 in)
1901
126.0 mm (5.0 in)
1902
164.9 mm (6.5 in)
1903
202.9 mm (8.0 in)
1904
77.3 mm (3.0 in)
1905
100.6 mm (4.0 in)
1906
99.4 mm (3.9 in)
1907
88.0 mm (3.5 in)
1908
92.7 mm (3.6 in)
1909
86.9 mm (3.4 in)
1910
137.3 mm (5.4 in)
1911
143.3 mm (5.6 in)
1912
166.8 mm (6.6 in)
1913
93.1 mm (3.7 in)
1914
121.7 mm (4.8 in)
1915
134.4 mm (5.3 in)
1916
228.8 mm (9.0 in)
1917
110.3 mm (4.3 in)
1918
108.2 mm (4.3 in)
1919
154.2 mm (6.1 in)
1920
83.6 mm (3.3 in)
1921
120.7 mm (4.8 in)
1922
112.5 mm (4.4 in)
1923
155.8 mm (6.1 in)
1924
176.0 mm (6.9 in)
1925
133.3 mm (5.2 in)
1926
126.3 mm (5.0 in)
1927
114.2 mm (4.5 in)
1928
256.8 mm (10.1 in)
1929
137.4 mm (5.4 in)
1930
83.0 mm (3.3 in)
1931
147.8 mm (5.8 in)
1932
129.5 mm (5.1 in)
1933
83.5 mm (3.3 in)
1934
81.3 mm (3.2 in)
1935
92.2 mm (3.6 in)
1936
149.8 mm (5.9 in)
1937
158.5 mm (6.2 in)
1938
76.2 mm (3.0 in)
1939
132.0 mm (5.2 in)
1940
156.7 mm (6.2 in)
1941
85.5 mm (3.4 in)
1942
188.9 mm (7.4 in)
1943
129.8 mm (5.1 in)
1944
136.2 mm (5.4 in)
1945
114.8 mm (4.5 in)
1946
66.6 mm (2.6 in)
1947
143.1 mm (5.6 in)
1948
241.8 mm (9.5 in)
1949
79.6 mm (3.1 in)
1950
151.9 mm (6.0 in)
1951
126.0 mm (5.0 in)
1952
67.3 mm (2.6 in)
1953
158.9 mm (6.3 in)
1954
59.0 mm (2.3 in)
1955
101.6 mm (4.0 in)
1956
113.5 mm (4.5 in)
1957
102.3 mm (4.0 in)
1958
89.7 mm (3.5 in)
1959
158.3 mm (6.2 in)
1960
173.0 mm (6.8 in)
1961
102.6 mm (4.0 in)
1962
90.9 mm (3.6 in)
1963
107.5 mm (4.2 in)
1964
236.2 mm (9.3 in)
1965
127.3 mm (5.0 in)
1966
106.7 mm (4.2 in)
1967
200.1 mm (7.9 in)
1968
97.0 mm (3.8 in)
1969
112.6 mm (4.4 in)
1970
258.1 mm (10.2 in)
1971
128.1 mm (5.0 in)
1972
122.7 mm (4.8 in)
1973
131.9 mm (5.2 in)
1974
123.4 mm (4.9 in)
Longest dry spell (CDD)
The longest dry spell of the year at Alapaha Exp STN, 1891 to 1974. The record is 47 days in 1901, marked on the chart; the median year is 24 days.
Longest dry spell (CDD) at Alapaha Exp STN by year
Year
Longest dry spell (CDD)
1891
n/a
1892
22 days
1893
23 days
1894
20 days
1895
24 days
1896
2 days
1897
11 days
1898
16 days
1899
1 day
1900
13 days
1901
47 days
1902
20 days
1903
29 days
1904
33 days
1905
15 days
1906
37 days
1907
22 days
1908
27 days
1909
30 days
1910
21 days
1911
30 days
1912
20 days
1913
17 days
1914
23 days
1915
24 days
1916
26 days
1917
24 days
1918
28 days
1919
17 days
1920
20 days
1921
34 days
1922
28 days
1923
22 days
1924
25 days
1925
30 days
1926
31 days
1927
26 days
1928
20 days
1929
20 days
1930
28 days
1931
44 days
1932
21 days
1933
38 days
1934
24 days
1935
25 days
1936
44 days
1937
19 days
1938
16 days
1939
23 days
1940
26 days
1941
26 days
1942
32 days
1943
46 days
1944
30 days
1945
21 days
1946
21 days
1947
21 days
1948
25 days
1949
28 days
1950
20 days
1951
20 days
1952
26 days
1953
15 days
1954
24 days
1955
36 days
1956
24 days
1957
15 days
1958
22 days
1959
17 days
1960
26 days
1961
36 days
1962
18 days
1963
32 days
1964
38 days
1965
23 days
1966
24 days
1967
30 days
1968
24 days
1969
24 days
1970
33 days
1971
29 days
1972
38 days
1973
33 days
1974
26 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 Alapaha Exp STN falls on 16 March and the median first autumn frost on 12 November, which leaves a median of 244 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 Alapaha Exp STN
Measure
Median, all years
Earliest period
Recent period (1936 to 1974)
Recent against earliest
Fitted trend
Last spring frost
16 March
n/a
18 March
n/a
+2.3 days per decade
First autumn frost
12 November
n/a
7 November
n/a
-2.1 days per decade
Growing days
244 days
n/a
235 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
69 years, 1901 to 1974
A day with at least 72.3 mm (2.8 in) of rain is expected about once in 2 years. A day with at least 196.9 mm (7.8 in) of rain is expected about once in 100 years.
Rainfall return levels at Alapaha Exp STN: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
72.3 mm (2.8 in)
5 years
96.4 mm (3.8 in)
10 years
115.6 mm (4.6 in)
25 years
144.1 mm (5.7 in)
50 years
168.8 mm (6.6 in)
100 years
196.9 mm (7.8 in)
Longer than the 69 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, 69 years of values from 1901 to 1974.
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: 212.1 mm (8.4 in) in 1948; 198.1 mm (7.8 in) in 1964; 138.4 mm (5.4 in) in 1928.
Station Changes
2 suspected
2 changes were suspected in the annual mean temperature of Alapaha Exp STN, at 1941 and 1963. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1941 ran 0.8 C (1.4 F) lower than in the years before (likely change).
Relative to 5 neighbouring stations, the station's annual mean temperature from 1963 ran 0.8 C (1.4 F) higher than in the years before (likely change).
Suspected changes in the annual mean temperature at Alapaha Exp STN, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1941
-0.8
-1.4
likely
5
1963
+0.8
+1.4
likely
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 Alapaha Exp STN standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Alapaha Exp STN 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.