Record envelope, standing records and threshold days for Experiment (USC00093271), Georgia, United States, with 105 years of record.
Key Facts for Experiment
Experiment (USC00093271) is a weather station in Georgia, United States at 33.26 latitude and -84.28 longitude, 285 m (934 ft) above sea level.
The station reports from 1900 to 2004, 105 years of record.
1,464 records set at Experiment still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Experiment tied a daily record high minimum temperature of 21.7 C (71.1 F) on 31 May 2004.
About the Station
Location: Georgia, United States, 33.26 latitude, -84.28 longitude.
Elevation: 285 m (934 ft).
Period of record: 1900 to 2004, 105 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 Experiment. 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 Experiment, 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)
-22.2 C (-8.0 F)
n/a
n/a
Feb
31.7 C (89.1 F)
-15.0 C (5.0 F)
n/a
n/a
Mar
31.1 C (88.0 F)
-11.7 C (10.9 F)
n/a
n/a
Apr
33.9 C (93.0 F)
-3.9 C (25.0 F)
n/a
n/a
May
36.1 C (97.0 F)
1.7 C (35.1 F)
n/a
n/a
Jun
39.4 C (102.9 F)
6.7 C (44.1 F)
n/a
n/a
Jul
40.0 C (104.0 F)
10.6 C (51.1 F)
n/a
n/a
Aug
38.3 C (100.9 F)
10.6 C (51.1 F)
n/a
n/a
Sep
39.4 C (102.9 F)
1.7 C (35.1 F)
n/a
n/a
Oct
35.6 C (96.1 F)
-3.3 C (26.1 F)
n/a
n/a
Nov
30.0 C (86.0 F)
-15.0 C (5.0 F)
n/a
n/a
Dec
26.1 C (79.0 F)
-17.8 C (0.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Experiment still stand. 1911 holds the most, with 39.
Standing records at Experiment by the year they were set
Year set
Standing records
1900
10
1901
19
1902
27
1903
12
1904
11
1905
14
1906
19
1907
25
1908
11
1909
11
1910
23
1911
39
1912
17
1913
19
1926
21
1927
37
1928
15
1929
26
1930
22
1931
34
1932
16
1933
18
1934
19
1935
25
1936
20
1937
36
1938
11
1939
8
1940
30
1941
22
1942
8
1943
20
1944
17
1945
11
1946
12
1947
11
1948
9
1949
8
1950
18
1951
17
1952
27
1953
9
1954
25
1955
15
1956
11
1957
18
1958
18
1959
7
1960
18
1961
25
1962
17
1963
10
1964
16
1965
12
1966
12
1967
36
1968
15
1969
9
1970
12
1971
18
1972
7
1973
10
1974
21
1975
10
1976
19
1977
13
1978
4
1979
11
1980
12
1981
15
1982
16
1983
17
1984
20
1985
14
1986
17
1987
15
1988
8
1989
21
1990
7
1991
11
1992
9
1993
10
1994
5
1995
7
1996
11
1997
16
1998
8
1999
15
2000
13
2001
7
2002
11
2003
6
All-Time Record Progression
7 new records
7 all-time records were set at Experiment between 13 December 1962 and 5 July 1994. Each dot is a new record.
When Experiment set new all-time records
Date
Kind
Detail
1962-12-13
Record low maximum temperature
Record low maximum temperature -7.2 C (19.0 F)
1962-12-13
Record low minimum temperature
Record low minimum temperature -17.8 C (0.0 F)
1963-01-24
Record low minimum temperature
Record low minimum temperature -18.9 C (-2.0 F)
1983-07-01
Record high minimum temperature
Record high minimum temperature 27.2 C (81.0 F)
1985-01-21
Record low maximum temperature
Record low maximum temperature -10.6 C (12.9 F)
1985-01-21
Record low minimum temperature
Record low minimum temperature -22.2 C (-8.0 F)
1994-07-05
Record daily precipitation
Record daily precipitation 266.7 mm (10.5 in)
Wettest Day of Each Month
Jul: 266.7 mm (10.5 in)
The wettest day on record for each calendar month at Experiment. The most was 266.7 mm (10.5 in) on 5 July 1994.
Record daily precipitation for each month at Experiment
Month
Record daily precipitation (mm)
Date
Jan
103.4 mm (4.1 in)
19 January 1943
Feb
187.2 mm (7.4 in)
27 February 1902
Mar
160.0 mm (6.3 in)
17 March 1990
Apr
121.9 mm (4.8 in)
3 April 1975
May
87.4 mm (3.4 in)
23 May 1961
Jun
116.1 mm (4.6 in)
23 June 1900
Jul
266.7 mm (10.5 in)
5 July 1994
Aug
94.5 mm (3.7 in)
7 August 1904
Sep
130.8 mm (5.1 in)
25 September 1956
Oct
155.2 mm (6.1 in)
1 October 1965
Nov
141.0 mm (5.6 in)
27 November 1948
Dec
94.0 mm (3.7 in)
4 December 1953
Period of Record Coverage
1900 to 2004
Complete yearUnder 90 percent of days
93 years of record at Experiment, 1900 to 2004. 2 years have data for under 90 percent of days and are left out of rankings: 1900, 2004.
Cooler than the station meanWarmer than the station mean
One stripe for each of 86 complete years at Experiment, 1901 to 2003. Blue stripes are years cooler than the station's own mean of 16.6 C (61.9 F); red stripes are warmer. The coolest year was 1979, at 15.4 C (59.7 F), and the warmest was 1927, at 18.1 C (64.6 F). The strongest colour marks a difference of 1.5 C (2.7 F).
Annual mean temperature at Experiment as warming stripes, 1901 to 2003
Year
Annual mean temperature
Difference from the station mean
1901
16.1 C
-0.53 C
1902
16.9 C
+0.32 C
1903
16.1 C
-0.52 C
1904
16.5 C
-0.07 C
1905
16.8 C
+0.19 C
1906
17.0 C
+0.36 C
1907
17.4 C
+0.81 C
1909
16.9 C
+0.25 C
1910
16.6 C
+0.03 C
1912
16.8 C
+0.22 C
1913
17.5 C
+0.92 C
1926
16.4 C
-0.17 C
1927
18.1 C
+1.50 C
1928
16.2 C
-0.42 C
1929
16.7 C
+0.14 C
1930
16.8 C
+0.18 C
1931
17.6 C
+1.02 C
1932
17.4 C
+0.75 C
1933
17.8 C
+1.19 C
1934
16.5 C
-0.10 C
1935
17.5 C
+0.93 C
1936
17.2 C
+0.63 C
1937
16.3 C
-0.29 C
1938
16.9 C
+0.31 C
1939
16.9 C
+0.29 C
1940
15.5 C
-1.13 C
1941
17.3 C
+0.72 C
1942
16.5 C
-0.13 C
1943
16.6 C
+0.02 C
1944
16.5 C
-0.07 C
1945
16.9 C
+0.27 C
1946
17.1 C
+0.50 C
1947
16.1 C
-0.51 C
1948
17.0 C
+0.38 C
1949
17.2 C
+0.57 C
1950
16.7 C
+0.12 C
1951
17.3 C
+0.66 C
1952
17.2 C
+0.63 C
1953
17.2 C
+0.62 C
1954
17.6 C
+0.97 C
1955
17.2 C
+0.61 C
1956
17.2 C
+0.64 C
1957
17.2 C
+0.61 C
1958
16.1 C
-0.47 C
1959
17.0 C
+0.39 C
1960
16.3 C
-0.33 C
1961
16.4 C
-0.24 C
1962
16.8 C
+0.24 C
1963
16.0 C
-0.58 C
1964
16.4 C
-0.22 C
1965
16.7 C
+0.13 C
1966
15.9 C
-0.67 C
1967
16.2 C
-0.39 C
1968
15.7 C
-0.92 C
1969
15.7 C
-0.90 C
1971
16.5 C
-0.07 C
1972
16.6 C
-0.05 C
1973
16.8 C
+0.17 C
1974
17.1 C
+0.50 C
1975
17.0 C
+0.43 C
1976
15.4 C
-1.17 C
1977
16.2 C
-0.40 C
1978
16.1 C
-0.51 C
1979
15.4 C
-1.23 C
1980
15.9 C
-0.66 C
1981
15.6 C
-1.01 C
1982
16.1 C
-0.48 C
1984
16.4 C
-0.24 C
1985
16.3 C
-0.33 C
1986
16.9 C
+0.26 C
1987
15.8 C
-0.81 C
1988
15.5 C
-1.12 C
1989
15.7 C
-0.89 C
1990
17.0 C
+0.43 C
1991
16.8 C
+0.18 C
1993
16.1 C
-0.50 C
1994
16.2 C
-0.44 C
1995
16.6 C
+0.04 C
1996
16.0 C
-0.63 C
1997
15.8 C
-0.79 C
1998
16.9 C
+0.30 C
1999
16.7 C
+0.14 C
2000
16.0 C
-0.58 C
2001
16.6 C
+0.04 C
2002
16.9 C
+0.32 C
2003
16.6 C
-0.05 C
The annual mean temperature here has fallen by 0.08 C (0.04 to 0.12) per decade over 1901 to 2003. In Fahrenheit: 0.1 F (0.1 to 0.2) per decade. The slope is a straight line fitted to 86 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Experiment
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.08 C (-0.12 to -0.04) per decade
-0.1 F (-0.2 to -0.1) per decade
1901 to 2003
86
Fall
Mean daily maximum
0.02 C (-0.03 to 0.07) per decade
0.03 F (-0.06 to 0.13) per decade
1901 to 2003
86
Not clearly different from zero
Mean daily minimum
-0.2 C (-0.2 to -0.1) per decade
-0.3 F (-0.4 to -0.2) per decade
1901 to 2003
86
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
1900 to 2004
Yearly extremes at Experiment: 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)
1930
36.1 C (97.0 F)
93
Coldest night (TNn)
-22.2 C (-8.0 F)
1985
-11.1 C (12.0 F)
93
Wettest day (Rx1day)
266.7 mm (10.5 in)
1994
76.2 mm (3.0 in)
93
Wettest five days (Rx5day)
372.6 mm (14.7 in)
1994
119.7 mm (4.7 in)
93
Longest dry spell (CDD)
52 days
1904
21 days
93
Hottest day (TXx)
The hottest day of the year at Experiment, 1900 to 2004. The record is 40.0 C (104.0 F) in 1930, marked on the chart; the median year is 36.1 C (97.0 F).
Hottest day (TXx) at Experiment by year
Year
Hottest day (TXx)
1900
36.7 C (98.1 F)
1901
37.2 C (99.0 F)
1902
38.3 C (100.9 F)
1903
35.6 C (96.1 F)
1904
35.6 C (96.1 F)
1905
36.1 C (97.0 F)
1906
36.1 C (97.0 F)
1907
36.1 C (97.0 F)
1908
35.6 C (96.1 F)
1909
34.4 C (93.9 F)
1910
34.4 C (93.9 F)
1911
38.3 C (100.9 F)
1912
36.7 C (98.1 F)
1913
37.8 C (100.0 F)
1926
37.8 C (100.0 F)
1927
37.8 C (100.0 F)
1928
35.0 C (95.0 F)
1929
35.6 C (96.1 F)
1930
40.0 C (104.0 F)
1931
39.4 C (102.9 F)
1932
38.3 C (100.9 F)
1933
37.2 C (99.0 F)
1934
37.2 C (99.0 F)
1935
37.8 C (100.0 F)
1936
39.4 C (102.9 F)
1937
36.1 C (97.0 F)
1938
36.7 C (98.1 F)
1939
37.8 C (100.0 F)
1940
35.6 C (96.1 F)
1941
36.7 C (98.1 F)
1942
35.0 C (95.0 F)
1943
36.7 C (98.1 F)
1944
37.2 C (99.0 F)
1945
35.6 C (96.1 F)
1946
35.0 C (95.0 F)
1947
35.0 C (95.0 F)
1948
37.2 C (99.0 F)
1949
34.4 C (93.9 F)
1950
36.1 C (97.0 F)
1951
37.2 C (99.0 F)
1952
38.9 C (102.0 F)
1953
36.1 C (97.0 F)
1954
38.3 C (100.9 F)
1955
35.6 C (96.1 F)
1956
36.7 C (98.1 F)
1957
36.1 C (97.0 F)
1958
35.0 C (95.0 F)
1959
36.7 C (98.1 F)
1960
36.7 C (98.1 F)
1961
35.0 C (95.0 F)
1962
37.2 C (99.0 F)
1963
35.6 C (96.1 F)
1964
37.2 C (99.0 F)
1965
34.4 C (93.9 F)
1966
36.7 C (98.1 F)
1967
33.9 C (93.0 F)
1968
37.8 C (100.0 F)
1969
36.7 C (98.1 F)
1970
36.1 C (97.0 F)
1971
35.6 C (96.1 F)
1972
35.0 C (95.0 F)
1973
33.9 C (93.0 F)
1974
33.9 C (93.0 F)
1975
35.0 C (95.0 F)
1976
35.0 C (95.0 F)
1977
37.8 C (100.0 F)
1978
37.8 C (100.0 F)
1979
35.0 C (95.0 F)
1980
37.8 C (100.0 F)
1981
37.2 C (99.0 F)
1982
33.9 C (93.0 F)
1983
38.3 C (100.9 F)
1984
36.1 C (97.0 F)
1985
37.2 C (99.0 F)
1986
38.9 C (102.0 F)
1987
35.6 C (96.1 F)
1988
37.2 C (99.0 F)
1989
34.4 C (93.9 F)
1990
37.8 C (100.0 F)
1991
35.0 C (95.0 F)
1992
35.6 C (96.1 F)
1993
37.2 C (99.0 F)
1994
33.3 C (91.9 F)
1995
37.8 C (100.0 F)
1996
36.1 C (97.0 F)
1997
35.0 C (95.0 F)
1998
36.1 C (97.0 F)
1999
38.9 C (102.0 F)
2000
38.3 C (100.9 F)
2001
34.4 C (93.9 F)
2002
35.6 C (96.1 F)
2003
32.8 C (91.0 F)
2004
34.4 C (93.9 F)
Coldest night (TNn)
The coldest night of the year at Experiment, 1900 to 2004. The record is -22.2 C (-8.0 F) in 1985, marked on the chart; the median year is -11.1 C (12.0 F).
Coldest night (TNn) at Experiment by year
Year
Coldest night (TNn)
1900
-2.8 C (27.0 F)
1901
-13.3 C (8.1 F)
1902
-10.0 C (14.0 F)
1903
-10.0 C (14.0 F)
1904
-8.9 C (16.0 F)
1905
-12.2 C (10.0 F)
1906
-8.9 C (16.0 F)
1907
-5.0 C (23.0 F)
1908
-7.8 C (18.0 F)
1909
-13.9 C (7.0 F)
1910
-9.4 C (15.1 F)
1911
-9.4 C (15.1 F)
1912
-12.2 C (10.0 F)
1913
-3.9 C (25.0 F)
1926
-9.4 C (15.1 F)
1927
-11.7 C (10.9 F)
1928
-16.7 C (1.9 F)
1929
-10.0 C (14.0 F)
1930
-8.3 C (17.1 F)
1931
-7.2 C (19.0 F)
1932
-8.3 C (17.1 F)
1933
-13.3 C (8.1 F)
1934
-15.0 C (5.0 F)
1935
-10.6 C (12.9 F)
1936
-13.3 C (8.1 F)
1937
-12.2 C (10.0 F)
1938
-10.0 C (14.0 F)
1939
-7.2 C (19.0 F)
1940
-15.6 C (3.9 F)
1941
-5.6 C (21.9 F)
1942
-12.2 C (10.0 F)
1943
-11.1 C (12.0 F)
1944
-8.3 C (17.1 F)
1945
-9.4 C (15.1 F)
1946
-7.2 C (19.0 F)
1947
-10.0 C (14.0 F)
1948
-11.7 C (10.9 F)
1949
-5.6 C (21.9 F)
1950
-15.0 C (5.0 F)
1951
-12.8 C (9.0 F)
1952
-8.9 C (16.0 F)
1953
-10.6 C (12.9 F)
1954
-6.7 C (19.9 F)
1955
-10.6 C (12.9 F)
1956
-7.2 C (19.0 F)
1957
-11.1 C (12.0 F)
1958
-15.0 C (5.0 F)
1959
-11.1 C (12.0 F)
1960
-12.2 C (10.0 F)
1961
-12.2 C (10.0 F)
1962
-17.8 C (0.0 F)
1963
-18.9 C (-2.0 F)
1964
-11.1 C (12.0 F)
1965
-11.7 C (10.9 F)
1966
-18.9 C (-2.0 F)
1967
-12.8 C (9.0 F)
1968
-9.4 C (15.1 F)
1969
-11.1 C (12.0 F)
1970
-17.2 C (1.0 F)
1971
-11.7 C (10.9 F)
1972
-13.9 C (7.0 F)
1973
-9.4 C (15.1 F)
1974
-7.8 C (18.0 F)
1975
-11.7 C (10.9 F)
1976
-12.8 C (9.0 F)
1977
-17.2 C (1.0 F)
1978
-11.1 C (12.0 F)
1979
-11.7 C (10.9 F)
1980
-11.7 C (10.9 F)
1981
-12.8 C (9.0 F)
1982
-18.3 C (-0.9 F)
1983
-17.8 C (0.0 F)
1984
-11.1 C (12.0 F)
1985
-22.2 C (-8.0 F)
1986
-15.0 C (5.0 F)
1987
-8.9 C (16.0 F)
1988
-10.0 C (14.0 F)
1989
-15.0 C (5.0 F)
1990
-7.2 C (19.0 F)
1991
-11.1 C (12.0 F)
1992
-7.8 C (18.0 F)
1993
-11.1 C (12.0 F)
1994
-14.4 C (6.1 F)
1995
-10.6 C (12.9 F)
1996
-13.9 C (7.0 F)
1997
-11.1 C (12.0 F)
1998
-6.7 C (19.9 F)
1999
-8.9 C (16.0 F)
2000
-11.7 C (10.9 F)
2001
-8.9 C (16.0 F)
2002
-10.0 C (14.0 F)
2003
-13.3 C (8.1 F)
2004
-7.8 C (18.0 F)
Wettest day (Rx1day)
The wettest day of the year at Experiment, 1900 to 2004. The record is 266.7 mm (10.5 in) in 1994, marked on the chart; the median year is 76.2 mm (3.0 in).
Wettest day (Rx1day) at Experiment by year
Year
Wettest day (Rx1day)
1900
116.1 mm (4.6 in)
1901
66.0 mm (2.6 in)
1902
187.2 mm (7.4 in)
1903
136.4 mm (5.4 in)
1904
94.5 mm (3.7 in)
1905
66.3 mm (2.6 in)
1906
88.9 mm (3.5 in)
1907
53.3 mm (2.1 in)
1908
46.5 mm (1.8 in)
1909
57.7 mm (2.3 in)
1910
43.2 mm (1.7 in)
1911
46.2 mm (1.8 in)
1912
71.1 mm (2.8 in)
1913
75.7 mm (3.0 in)
1926
71.4 mm (2.8 in)
1927
71.1 mm (2.8 in)
1928
80.0 mm (3.1 in)
1929
97.5 mm (3.8 in)
1930
58.4 mm (2.3 in)
1931
42.7 mm (1.7 in)
1932
120.7 mm (4.8 in)
1933
110.5 mm (4.4 in)
1934
76.2 mm (3.0 in)
1935
68.1 mm (2.7 in)
1936
129.3 mm (5.1 in)
1937
94.5 mm (3.7 in)
1938
72.6 mm (2.9 in)
1939
86.9 mm (3.4 in)
1940
46.5 mm (1.8 in)
1941
80.0 mm (3.1 in)
1942
124.5 mm (4.9 in)
1943
103.4 mm (4.1 in)
1944
111.8 mm (4.4 in)
1945
98.6 mm (3.9 in)
1946
72.1 mm (2.8 in)
1947
99.6 mm (3.9 in)
1948
141.0 mm (5.6 in)
1949
74.4 mm (2.9 in)
1950
91.4 mm (3.6 in)
1951
44.7 mm (1.8 in)
1952
75.9 mm (3.0 in)
1953
94.0 mm (3.7 in)
1954
44.7 mm (1.8 in)
1955
72.6 mm (2.9 in)
1956
130.8 mm (5.1 in)
1957
94.2 mm (3.7 in)
1958
53.1 mm (2.1 in)
1959
104.1 mm (4.1 in)
1960
62.0 mm (2.4 in)
1961
87.4 mm (3.4 in)
1962
61.5 mm (2.4 in)
1963
76.7 mm (3.0 in)
1964
96.5 mm (3.8 in)
1965
155.2 mm (6.1 in)
1966
110.0 mm (4.3 in)
1967
58.4 mm (2.3 in)
1968
83.8 mm (3.3 in)
1969
46.2 mm (1.8 in)
1970
86.1 mm (3.4 in)
1971
105.4 mm (4.1 in)
1972
100.8 mm (4.0 in)
1973
57.7 mm (2.3 in)
1974
65.0 mm (2.6 in)
1975
121.9 mm (4.8 in)
1976
121.9 mm (4.8 in)
1977
118.4 mm (4.7 in)
1978
73.7 mm (2.9 in)
1979
78.7 mm (3.1 in)
1980
69.3 mm (2.7 in)
1981
112.8 mm (4.4 in)
1982
68.8 mm (2.7 in)
1983
64.5 mm (2.5 in)
1984
55.9 mm (2.2 in)
1985
67.8 mm (2.7 in)
1986
49.5 mm (1.9 in)
1987
65.5 mm (2.6 in)
1988
55.9 mm (2.2 in)
1989
59.7 mm (2.4 in)
1990
160.0 mm (6.3 in)
1991
53.3 mm (2.1 in)
1992
69.1 mm (2.7 in)
1993
121.9 mm (4.8 in)
1994
266.7 mm (10.5 in)
1995
80.0 mm (3.1 in)
1996
67.3 mm (2.6 in)
1997
121.4 mm (4.8 in)
1998
57.7 mm (2.3 in)
1999
63.2 mm (2.5 in)
2000
83.1 mm (3.3 in)
2001
58.9 mm (2.3 in)
2002
77.2 mm (3.0 in)
2003
83.8 mm (3.3 in)
2004
64.5 mm (2.5 in)
Wettest five days (Rx5day)
The wettest five days of the year at Experiment, 1900 to 2004. The record is 372.6 mm (14.7 in) in 1994, marked on the chart; the median year is 119.7 mm (4.7 in).
Wettest five days (Rx5day) at Experiment by year
Year
Wettest five days (Rx5day)
1900
154.2 mm (6.1 in)
1901
115.0 mm (4.5 in)
1902
215.6 mm (8.5 in)
1903
192.3 mm (7.6 in)
1904
127.8 mm (5.0 in)
1905
83.3 mm (3.3 in)
1906
105.6 mm (4.2 in)
1907
93.3 mm (3.7 in)
1908
74.5 mm (2.9 in)
1909
110.2 mm (4.3 in)
1910
82.5 mm (3.2 in)
1911
78.2 mm (3.1 in)
1912
112.1 mm (4.4 in)
1913
140.2 mm (5.5 in)
1926
129.5 mm (5.1 in)
1927
104.4 mm (4.1 in)
1928
110.2 mm (4.3 in)
1929
169.7 mm (6.7 in)
1930
129.5 mm (5.1 in)
1931
54.8 mm (2.2 in)
1932
120.7 mm (4.8 in)
1933
146.8 mm (5.8 in)
1934
86.1 mm (3.4 in)
1935
91.9 mm (3.6 in)
1936
166.0 mm (6.5 in)
1937
137.4 mm (5.4 in)
1938
112.8 mm (4.4 in)
1939
138.7 mm (5.5 in)
1940
113.8 mm (4.5 in)
1941
130.3 mm (5.1 in)
1942
158.6 mm (6.2 in)
1943
179.9 mm (7.1 in)
1944
136.1 mm (5.4 in)
1945
116.9 mm (4.6 in)
1946
105.6 mm (4.2 in)
1947
154.4 mm (6.1 in)
1948
216.4 mm (8.5 in)
1949
109.5 mm (4.3 in)
1950
109.5 mm (4.3 in)
1951
84.8 mm (3.3 in)
1952
118.4 mm (4.7 in)
1953
141.0 mm (5.6 in)
1954
71.6 mm (2.8 in)
1955
118.8 mm (4.7 in)
1956
203.4 mm (8.0 in)
1957
125.2 mm (4.9 in)
1958
76.3 mm (3.0 in)
1959
168.6 mm (6.6 in)
1960
117.0 mm (4.6 in)
1961
184.0 mm (7.2 in)
1962
87.5 mm (3.4 in)
1963
124.7 mm (4.9 in)
1964
148.3 mm (5.8 in)
1965
170.7 mm (6.7 in)
1966
134.0 mm (5.3 in)
1967
119.1 mm (4.7 in)
1968
110.0 mm (4.3 in)
1969
94.4 mm (3.7 in)
1970
134.6 mm (5.3 in)
1971
231.2 mm (9.1 in)
1972
155.5 mm (6.1 in)
1973
69.1 mm (2.7 in)
1974
104.4 mm (4.1 in)
1975
136.6 mm (5.4 in)
1976
179.8 mm (7.1 in)
1977
146.9 mm (5.8 in)
1978
103.9 mm (4.1 in)
1979
104.1 mm (4.1 in)
1980
110.0 mm (4.3 in)
1981
113.8 mm (4.5 in)
1982
111.7 mm (4.4 in)
1983
123.2 mm (4.9 in)
1984
92.7 mm (3.6 in)
1985
130.6 mm (5.1 in)
1986
103.3 mm (4.1 in)
1987
90.3 mm (3.6 in)
1988
123.7 mm (4.9 in)
1989
99.1 mm (3.9 in)
1990
174.8 mm (6.9 in)
1991
68.8 mm (2.7 in)
1992
147.0 mm (5.8 in)
1993
129.8 mm (5.1 in)
1994
372.6 mm (14.7 in)
1995
133.1 mm (5.2 in)
1996
119.7 mm (4.7 in)
1997
250.0 mm (9.8 in)
1998
169.2 mm (6.7 in)
1999
85.1 mm (3.4 in)
2000
92.0 mm (3.6 in)
2001
102.9 mm (4.1 in)
2002
153.4 mm (6.0 in)
2003
139.7 mm (5.5 in)
2004
81.1 mm (3.2 in)
Longest dry spell (CDD)
The longest dry spell of the year at Experiment, 1900 to 2004. The record is 52 days in 1904, marked on the chart; the median year is 21 days.
Longest dry spell (CDD) at Experiment by year
Year
Longest dry spell (CDD)
1900
17 days
1901
22 days
1902
23 days
1903
19 days
1904
52 days
1905
25 days
1906
26 days
1907
27 days
1908
19 days
1909
28 days
1910
18 days
1911
26 days
1912
20 days
1913
25 days
1926
21 days
1927
31 days
1928
18 days
1929
19 days
1930
21 days
1931
33 days
1932
19 days
1933
16 days
1934
24 days
1935
38 days
1936
24 days
1937
18 days
1938
21 days
1939
16 days
1940
24 days
1941
24 days
1942
22 days
1943
20 days
1944
20 days
1945
15 days
1946
15 days
1947
21 days
1948
23 days
1949
12 days
1950
16 days
1951
23 days
1952
30 days
1953
15 days
1954
21 days
1955
21 days
1956
18 days
1957
20 days
1958
26 days
1959
20 days
1960
17 days
1961
31 days
1962
17 days
1963
33 days
1964
28 days
1965
23 days
1966
14 days
1967
24 days
1968
18 days
1969
15 days
1970
21 days
1971
16 days
1972
13 days
1973
26 days
1974
21 days
1975
14 days
1976
24 days
1977
26 days
1978
32 days
1979
16 days
1980
24 days
1981
21 days
1982
20 days
1983
19 days
1984
25 days
1985
19 days
1986
25 days
1987
26 days
1988
14 days
1989
23 days
1990
23 days
1991
29 days
1992
16 days
1993
17 days
1994
13 days
1995
14 days
1996
16 days
1997
34 days
1998
25 days
1999
21 days
2000
30 days
2001
29 days
2002
18 days
2003
17 days
2004
12 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
86 years with a frost
Across 86 years with a frost, the median last spring frost at Experiment falls on 28 March and the median first autumn frost on 8 November, which leaves a median of 225 days between them.
In 1972 to 2003 the median growing season was 222 days. That is 6 days fewer than in 1901 to 1944.
Fitted over all years, the growing season changes by -1.5 days per decade at this station.
Frost dates and growing season at Experiment
Measure
Median, all years
Earliest period (1901 to 1944)
Recent period (1972 to 2003)
Recent against earliest
Fitted trend
Last spring frost
28 March
20 March
30 March
10 days later
+1.0 days per decade
First autumn frost
8 November
12 November
6 November
6 days earlier
-0.5 days per decade
Growing days
225 days
228 days
222 days
6 days fewer
-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
89 years, 1902 to 2003
A day with at least 78.3 mm (3.1 in) of rain is expected about once in 2 years. A day with at least 209.9 mm (8.3 in) of rain is expected about once in 100 years.
Rainfall return levels at Experiment: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
78.3 mm (3.1 in)
5 years
107.1 mm (4.2 in)
10 years
128.5 mm (5.1 in)
25 years
158.5 mm (6.2 in)
50 years
183.2 mm (7.2 in)
100 years
209.9 mm (8.3 in)
Longer than the 89 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, 89 years of values from 1902 to 2003.
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: 266.7 mm (10.5 in) in 1994; 187.2 mm (7.4 in) in 1902; 160.0 mm (6.3 in) in 1990.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Experiment standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Experiment 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 2026-10-12 (12 October 2026). Records are computed by this site and are not official.