Record envelope, standing records and threshold days for Golconda River (USC00113522), Illinois, United States, with 88 years of record.
Key Facts for Golconda River
Golconda River (USC00113522) is a weather station in Illinois, United States at 37.38 latitude and -88.49 longitude, 108 m (354 ft) above sea level.
The station reports from 1893 to 1980, 88 years of record.
1,464 records set at Golconda River still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Golconda River set a daily record precipitation of 25.4 mm (1.0 in) on 15 August 1980.
About the Station
Location: Illinois, United States, 37.38 latitude, -88.49 longitude.
Elevation: 108 m (354 ft).
Period of record: 1893 to 1980, 88 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 Golconda River. 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 Golconda River, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
23.3 C (73.9 F)
-26.7 C (-16.1 F)
n/a
n/a
Feb
25.6 C (78.1 F)
-26.7 C (-16.1 F)
n/a
n/a
Mar
31.7 C (89.1 F)
-18.3 C (-0.9 F)
n/a
n/a
Apr
32.2 C (90.0 F)
-4.4 C (24.1 F)
n/a
n/a
May
38.3 C (100.9 F)
-1.1 C (30.0 F)
n/a
n/a
Jun
41.1 C (106.0 F)
5.6 C (42.1 F)
n/a
n/a
Jul
42.2 C (108.0 F)
7.2 C (45.0 F)
n/a
n/a
Aug
41.1 C (106.0 F)
8.9 C (48.0 F)
n/a
n/a
Sep
40.0 C (104.0 F)
0.0 C (32.0 F)
n/a
n/a
Oct
34.4 C (93.9 F)
-4.4 C (24.1 F)
n/a
n/a
Nov
28.9 C (84.0 F)
-20.0 C (-4.0 F)
n/a
n/a
Dec
24.4 C (75.9 F)
-25.0 C (-13.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Golconda River still stand. 1897 holds the most, with 65.
Standing records at Golconda River by the year they were set
Year set
Standing records
1893
28
1894
55
1895
55
1896
41
1897
65
1898
41
1899
60
1900
39
1901
58
1902
42
1903
38
1904
24
1905
29
1906
34
1907
39
1908
44
1909
43
1910
38
1911
52
1912
37
1913
43
1914
37
1915
28
1916
21
1942
27
1943
28
1944
17
1945
20
1946
12
1947
24
1948
21
1949
20
1950
44
1951
31
1952
19
1953
17
1954
27
1955
23
1956
17
1957
10
1958
18
1959
16
1960
41
1961
15
1972
1
1976
5
1977
17
1978
3
All-Time Record Progression
2 new records
2 all-time records were set at Golconda River between 17 January 1978 and 20 January 1978. Each dot is a new record.
When Golconda River set new all-time records
Date
Kind
Detail
1978-01-17
Record snow depth
Record snow depth 35.6 cm (14.0 in)
1978-01-20
Record snow depth
Record snow depth 38.1 cm (15.0 in)
Wettest Day of Each Month
Oct: 202.9 mm (8.0 in)
The wettest day on record for each calendar month at Golconda River. The most was 202.9 mm (8.0 in) on 5 October 1910.
Record daily precipitation for each month at Golconda River
Month
Record daily precipitation (mm)
Date
Jan
111.5 mm (4.4 in)
30 January 1969
Feb
102.4 mm (4.0 in)
14 February 1908
Mar
172.5 mm (6.8 in)
31 March 1938
Apr
151.4 mm (6.0 in)
16 April 1972
May
111.8 mm (4.4 in)
16 May 1948
Jun
132.6 mm (5.2 in)
23 June 1969
Jul
140.7 mm (5.5 in)
16 July 1910
Aug
91.4 mm (3.6 in)
23 August 1942
Sep
100.6 mm (4.0 in)
12 September 1965
Oct
202.9 mm (8.0 in)
5 October 1910
Nov
110.5 mm (4.4 in)
22 November 1934
Dec
76.2 mm (3.0 in)
31 December 1932
Period of Record Coverage
1893 to 1978
Complete yearUnder 90 percent of days
48 years of record at Golconda River, 1893 to 1978. 10 years have data for under 90 percent of days and are left out of rankings: 1895, 1896, 1898, 1915, 1916, 1961, 1972, 1976 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 38 complete years at Golconda River, 1893 to 1960. Blue stripes are years cooler than the station's own mean of 14.0 C (57.1 F); red stripes are warmer. The coolest year was 1958, at 12.3 C (54.2 F), and the warmest was 1911, at 15.4 C (59.8 F). The strongest colour marks a difference of 1.7 C (3.1 F).
Annual mean temperature at Golconda River as warming stripes, 1893 to 1960
Year
Annual mean temperature
Difference from the station mean
1893
14.4 C
+0.44 C
1894
15.1 C
+1.15 C
1897
14.6 C
+0.64 C
1899
14.2 C
+0.21 C
1900
15.3 C
+1.33 C
1901
14.1 C
+0.16 C
1902
14.1 C
+0.08 C
1903
13.5 C
-0.45 C
1904
13.0 C
-0.94 C
1905
13.4 C
-0.54 C
1906
13.8 C
-0.22 C
1907
13.8 C
-0.19 C
1908
14.5 C
+0.49 C
1909
14.3 C
+0.28 C
1910
13.7 C
-0.27 C
1911
15.4 C
+1.46 C
1912
13.3 C
-0.67 C
1913
15.2 C
+1.24 C
1914
14.4 C
+0.47 C
1942
14.0 C
+0.01 C
1943
13.7 C
-0.24 C
1944
14.2 C
+0.20 C
1945
13.2 C
-0.80 C
1946
14.5 C
+0.53 C
1947
13.4 C
-0.62 C
1948
13.5 C
-0.43 C
1949
14.2 C
+0.19 C
1950
13.1 C
-0.88 C
1951
13.3 C
-0.72 C
1952
14.5 C
+0.49 C
1953
14.7 C
+0.73 C
1954
14.7 C
+0.76 C
1955
13.9 C
-0.09 C
1956
14.1 C
+0.17 C
1957
13.4 C
-0.53 C
1958
12.3 C
-1.65 C
1959
13.5 C
-0.45 C
1960
12.6 C
-1.40 C
The annual mean temperature here has fallen by 0.11 C (0.02 to 0.21) per decade over 1893 to 1960. In Fahrenheit: 0.21 F (0.04 to 0.37) per decade. The slope is a straight line fitted to 38 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Golconda River
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.11 C (-0.21 to -0.02) per decade
-0.21 F (-0.37 to -0.04) per decade
1893 to 1960
38
Fall
Mean daily maximum
-0.2 C (-0.3 to -0.1) per decade
-0.3 F (-0.6 to -0.1) per decade
1893 to 1960
38
Fall
Mean daily minimum
-0.04 C (-0.15 to 0.07) per decade
-0.1 F (-0.3 to 0.1) per decade
1893 to 1960
38
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 1980
Yearly extremes at Golconda River: 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)
1901
37.2 C (99.0 F)
48
Coldest night (TNn)
-26.7 C (-16.1 F)
1899
-17.8 C (0.0 F)
47
Wettest day (Rx1day)
202.9 mm (8.0 in)
1910
66.7 mm (2.6 in)
82
Wettest five days (Rx5day)
385.5 mm (15.2 in)
1910
113.6 mm (4.5 in)
82
Longest dry spell (CDD)
49 days
1964
20 days
82
Hottest day (TXx)
The hottest day of the year at Golconda River, 1893 to 1980. The record is 42.2 C (108.0 F) in 1901, marked on the chart; the median year is 37.2 C (99.0 F).
Hottest day (TXx) at Golconda River by year
Year
Hottest day (TXx)
1893
35.0 C (95.0 F)
1894
37.8 C (100.0 F)
1895
36.1 C (97.0 F)
1896
39.4 C (102.9 F)
1897
39.4 C (102.9 F)
1898
35.6 C (96.1 F)
1899
37.8 C (100.0 F)
1900
37.8 C (100.0 F)
1901
42.2 C (108.0 F)
1902
38.9 C (102.0 F)
1903
37.8 C (100.0 F)
1904
35.6 C (96.1 F)
1905
36.7 C (98.1 F)
1906
34.4 C (93.9 F)
1907
36.7 C (98.1 F)
1908
37.2 C (99.0 F)
1909
40.0 C (104.0 F)
1910
36.7 C (98.1 F)
1911
39.4 C (102.9 F)
1912
37.8 C (100.0 F)
1913
41.1 C (106.0 F)
1914
40.6 C (105.1 F)
1915
37.2 C (99.0 F)
1916
38.3 C (100.9 F)
1923
n/a
1924
n/a
1925
n/a
1926
n/a
1927
n/a
1928
n/a
1929
n/a
1930
n/a
1931
n/a
1932
n/a
1933
n/a
1934
n/a
1935
n/a
1936
n/a
1937
n/a
1938
n/a
1939
n/a
1940
n/a
1941
n/a
1942
37.2 C (99.0 F)
1943
38.3 C (100.9 F)
1944
36.7 C (98.1 F)
1945
37.2 C (99.0 F)
1946
35.6 C (96.1 F)
1947
37.8 C (100.0 F)
1948
36.7 C (98.1 F)
1949
35.0 C (95.0 F)
1950
35.0 C (95.0 F)
1951
37.2 C (99.0 F)
1952
41.1 C (106.0 F)
1953
37.8 C (100.0 F)
1954
40.0 C (104.0 F)
1955
36.7 C (98.1 F)
1956
36.1 C (97.0 F)
1957
34.4 C (93.9 F)
1958
34.4 C (93.9 F)
1959
34.4 C (93.9 F)
1960
37.2 C (99.0 F)
1961
33.3 C (91.9 F)
1962
n/a
1963
n/a
1964
n/a
1965
n/a
1966
n/a
1967
n/a
1968
n/a
1969
n/a
1970
n/a
1971
n/a
1972
-10.0 C (14.0 F)
1973
n/a
1974
n/a
1975
n/a
1976
38.9 C (102.0 F)
1977
37.8 C (100.0 F)
1978
36.7 C (98.1 F)
1979
n/a
1980
n/a
Coldest night (TNn)
The coldest night of the year at Golconda River, 1893 to 1980. The record is -26.7 C (-16.1 F) in 1899, marked on the chart; the median year is -17.8 C (0.0 F).
Coldest night (TNn) at Golconda River by year
Year
Coldest night (TNn)
1893
-18.9 C (-2.0 F)
1894
-20.6 C (-5.1 F)
1895
-23.9 C (-11.0 F)
1896
-12.8 C (9.0 F)
1897
-18.9 C (-2.0 F)
1898
-16.7 C (1.9 F)
1899
-26.7 C (-16.1 F)
1900
-20.6 C (-5.1 F)
1901
-25.0 C (-13.0 F)
1902
-16.1 C (3.0 F)
1903
-23.3 C (-9.9 F)
1904
-20.6 C (-5.1 F)
1905
-24.4 C (-11.9 F)
1906
-20.6 C (-5.1 F)
1907
-16.7 C (1.9 F)
1908
-13.3 C (8.1 F)
1909
-20.6 C (-5.1 F)
1910
-26.1 C (-15.0 F)
1911
-18.3 C (-0.9 F)
1912
-26.7 C (-16.1 F)
1913
-12.2 C (10.0 F)
1914
-22.8 C (-9.0 F)
1915
-15.6 C (3.9 F)
1916
-16.7 C (1.9 F)
1923
n/a
1924
n/a
1925
n/a
1926
n/a
1927
n/a
1928
n/a
1929
n/a
1930
n/a
1931
n/a
1932
n/a
1933
n/a
1934
n/a
1935
n/a
1936
n/a
1937
n/a
1938
n/a
1939
n/a
1940
n/a
1941
n/a
1942
-16.7 C (1.9 F)
1943
-15.6 C (3.9 F)
1944
-13.9 C (7.0 F)
1945
-15.6 C (3.9 F)
1946
-13.3 C (8.1 F)
1947
-14.4 C (6.1 F)
1948
-17.8 C (0.0 F)
1949
-14.4 C (6.1 F)
1950
-20.0 C (-4.0 F)
1951
-23.3 C (-9.9 F)
1952
-13.3 C (8.1 F)
1953
-13.3 C (8.1 F)
1954
-14.4 C (6.1 F)
1955
-15.6 C (3.9 F)
1956
-10.0 C (14.0 F)
1957
-14.4 C (6.1 F)
1958
-20.0 C (-4.0 F)
1959
-17.8 C (0.0 F)
1960
-18.9 C (-2.0 F)
1961
-17.2 C (1.0 F)
1962
n/a
1963
n/a
1964
n/a
1965
n/a
1966
n/a
1967
n/a
1968
n/a
1969
n/a
1970
n/a
1971
n/a
1972
n/a
1973
n/a
1974
n/a
1975
n/a
1976
-20.6 C (-5.1 F)
1977
-23.9 C (-11.0 F)
1978
11.7 C (53.1 F)
1979
n/a
1980
n/a
Wettest day (Rx1day)
The wettest day of the year at Golconda River, 1893 to 1980. The record is 202.9 mm (8.0 in) in 1910, marked on the chart; the median year is 66.7 mm (2.6 in).
Wettest day (Rx1day) at Golconda River by year
Year
Wettest day (Rx1day)
1893
62.2 mm (2.4 in)
1894
61.0 mm (2.4 in)
1895
90.4 mm (3.6 in)
1896
43.7 mm (1.7 in)
1897
80.3 mm (3.2 in)
1898
61.5 mm (2.4 in)
1899
47.2 mm (1.9 in)
1900
64.8 mm (2.6 in)
1901
109.5 mm (4.3 in)
1902
53.8 mm (2.1 in)
1903
45.7 mm (1.8 in)
1904
54.9 mm (2.2 in)
1905
71.4 mm (2.8 in)
1906
65.0 mm (2.6 in)
1907
61.5 mm (2.4 in)
1908
102.4 mm (4.0 in)
1909
89.7 mm (3.5 in)
1910
202.9 mm (8.0 in)
1911
55.1 mm (2.2 in)
1912
77.5 mm (3.1 in)
1913
134.9 mm (5.3 in)
1914
65.3 mm (2.6 in)
1915
66.0 mm (2.6 in)
1916
64.8 mm (2.6 in)
1923
58.2 mm (2.3 in)
1924
48.8 mm (1.9 in)
1925
121.2 mm (4.8 in)
1926
56.9 mm (2.2 in)
1927
66.8 mm (2.6 in)
1928
73.2 mm (2.9 in)
1929
64.8 mm (2.6 in)
1930
48.8 mm (1.9 in)
1931
66.0 mm (2.6 in)
1932
76.2 mm (3.0 in)
1933
67.6 mm (2.7 in)
1934
110.5 mm (4.4 in)
1935
91.4 mm (3.6 in)
1936
61.2 mm (2.4 in)
1937
86.4 mm (3.4 in)
1938
172.5 mm (6.8 in)
1939
95.8 mm (3.8 in)
1940
47.5 mm (1.9 in)
1941
55.1 mm (2.2 in)
1942
91.4 mm (3.6 in)
1943
80.8 mm (3.2 in)
1944
85.3 mm (3.4 in)
1945
69.6 mm (2.7 in)
1946
63.8 mm (2.5 in)
1947
52.6 mm (2.1 in)
1948
111.8 mm (4.4 in)
1949
75.4 mm (3.0 in)
1950
85.1 mm (3.4 in)
1951
81.8 mm (3.2 in)
1952
69.1 mm (2.7 in)
1953
43.2 mm (1.7 in)
1954
42.4 mm (1.7 in)
1955
63.5 mm (2.5 in)
1956
50.5 mm (2.0 in)
1957
95.8 mm (3.8 in)
1958
66.5 mm (2.6 in)
1959
72.6 mm (2.9 in)
1960
53.3 mm (2.1 in)
1961
72.4 mm (2.9 in)
1962
61.0 mm (2.4 in)
1963
57.7 mm (2.3 in)
1964
49.5 mm (1.9 in)
1965
100.6 mm (4.0 in)
1966
62.5 mm (2.5 in)
1967
66.0 mm (2.6 in)
1968
73.2 mm (2.9 in)
1969
132.6 mm (5.2 in)
1970
66.8 mm (2.6 in)
1971
60.7 mm (2.4 in)
1972
151.4 mm (6.0 in)
1973
104.1 mm (4.1 in)
1974
62.2 mm (2.4 in)
1975
95.8 mm (3.8 in)
1976
46.0 mm (1.8 in)
1977
108.7 mm (4.3 in)
1978
76.2 mm (3.0 in)
1979
101.6 mm (4.0 in)
1980
60.5 mm (2.4 in)
Wettest five days (Rx5day)
The wettest five days of the year at Golconda River, 1893 to 1980. The record is 385.5 mm (15.2 in) in 1910, marked on the chart; the median year is 113.6 mm (4.5 in).
Wettest five days (Rx5day) at Golconda River by year
Year
Wettest five days (Rx5day)
1893
108.2 mm (4.3 in)
1894
81.8 mm (3.2 in)
1895
124.2 mm (4.9 in)
1896
45.0 mm (1.8 in)
1897
120.4 mm (4.7 in)
1898
110.0 mm (4.3 in)
1899
97.5 mm (3.8 in)
1900
134.7 mm (5.3 in)
1901
118.4 mm (4.7 in)
1902
102.6 mm (4.0 in)
1903
103.6 mm (4.1 in)
1904
111.0 mm (4.4 in)
1905
105.7 mm (4.2 in)
1906
186.3 mm (7.3 in)
1907
165.4 mm (6.5 in)
1908
128.1 mm (5.0 in)
1909
126.5 mm (5.0 in)
1910
385.5 mm (15.2 in)
1911
90.0 mm (3.5 in)
1912
116.4 mm (4.6 in)
1913
173.3 mm (6.8 in)
1914
109.5 mm (4.3 in)
1915
113.2 mm (4.5 in)
1916
166.1 mm (6.5 in)
1923
83.1 mm (3.3 in)
1924
78.7 mm (3.1 in)
1925
124.2 mm (4.9 in)
1926
89.7 mm (3.5 in)
1927
193.3 mm (7.6 in)
1928
97.2 mm (3.8 in)
1929
115.0 mm (4.5 in)
1930
126.3 mm (5.0 in)
1931
92.2 mm (3.6 in)
1932
118.1 mm (4.6 in)
1933
118.1 mm (4.6 in)
1934
122.1 mm (4.8 in)
1935
154.1 mm (6.1 in)
1936
94.2 mm (3.7 in)
1937
98.1 mm (3.9 in)
1938
196.5 mm (7.7 in)
1939
130.5 mm (5.1 in)
1940
105.1 mm (4.1 in)
1941
63.8 mm (2.5 in)
1942
120.6 mm (4.7 in)
1943
133.9 mm (5.3 in)
1944
102.4 mm (4.0 in)
1945
142.0 mm (5.6 in)
1946
124.0 mm (4.9 in)
1947
70.4 mm (2.8 in)
1948
74.8 mm (2.9 in)
1949
142.5 mm (5.6 in)
1950
167.8 mm (6.6 in)
1951
160.8 mm (6.3 in)
1952
90.4 mm (3.6 in)
1953
66.4 mm (2.6 in)
1954
55.8 mm (2.2 in)
1955
88.5 mm (3.5 in)
1956
100.5 mm (4.0 in)
1957
153.2 mm (6.0 in)
1958
101.4 mm (4.0 in)
1959
126.7 mm (5.0 in)
1960
95.3 mm (3.8 in)
1961
191.7 mm (7.5 in)
1962
113.8 mm (4.5 in)
1963
78.5 mm (3.1 in)
1964
74.4 mm (2.9 in)
1965
122.7 mm (4.8 in)
1966
113.3 mm (4.5 in)
1967
99.8 mm (3.9 in)
1968
93.1 mm (3.7 in)
1969
155.0 mm (6.1 in)
1970
100.9 mm (4.0 in)
1971
63.8 mm (2.5 in)
1972
173.2 mm (6.8 in)
1973
171.7 mm (6.8 in)
1974
106.4 mm (4.2 in)
1975
128.1 mm (5.0 in)
1976
80.3 mm (3.2 in)
1977
115.8 mm (4.6 in)
1978
122.1 mm (4.8 in)
1979
127.3 mm (5.0 in)
1980
75.8 mm (3.0 in)
Longest dry spell (CDD)
The longest dry spell of the year at Golconda River, 1893 to 1980. The record is 49 days in 1964, marked on the chart; the median year is 20 days.
Longest dry spell (CDD) at Golconda River by year
Year
Longest dry spell (CDD)
1893
13 days
1894
20 days
1895
19 days
1896
16 days
1897
24 days
1898
20 days
1899
15 days
1900
19 days
1901
24 days
1902
20 days
1903
26 days
1904
22 days
1905
13 days
1906
22 days
1907
24 days
1908
33 days
1909
20 days
1910
17 days
1911
17 days
1912
23 days
1913
19 days
1914
32 days
1915
20 days
1916
22 days
1923
12 days
1924
32 days
1925
25 days
1926
16 days
1927
25 days
1928
31 days
1929
12 days
1930
20 days
1931
15 days
1932
15 days
1933
24 days
1934
20 days
1935
18 days
1936
23 days
1937
13 days
1938
30 days
1939
26 days
1940
19 days
1941
20 days
1942
16 days
1943
31 days
1944
30 days
1945
18 days
1946
28 days
1947
19 days
1948
19 days
1949
13 days
1950
19 days
1951
15 days
1952
27 days
1953
27 days
1954
20 days
1955
20 days
1956
18 days
1957
23 days
1958
17 days
1959
15 days
1960
16 days
1961
13 days
1962
22 days
1963
44 days
1964
49 days
1965
24 days
1966
25 days
1967
18 days
1968
24 days
1969
19 days
1970
14 days
1971
15 days
1972
13 days
1973
18 days
1974
17 days
1975
16 days
1976
25 days
1977
20 days
1978
17 days
1979
13 days
1980
17 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
38 years with a frost
Across 38 years with a frost, the median last spring frost at Golconda River falls on 9 April and the median first autumn frost on 29 October, which leaves a median of 199 days between them.
Fitted over all years, the growing season changes by +2.0 days per decade at this station.
Frost dates and growing season at Golconda River
Measure
Median, all years
Earliest period
Recent period (1904 to 1960)
Recent against earliest
Fitted trend
Last spring frost
9 April
n/a
9 April
n/a
-0.5 days per decade
First autumn frost
29 October
n/a
27 October
n/a
+1.5 days per decade
Growing days
199 days
n/a
199 days
n/a
+2.0 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
74 years, 1893 to 1979
A day with at least 69.7 mm (2.7 in) of rain is expected about once in 2 years. A day with at least 195.9 mm (7.7 in) of rain is expected about once in 100 years.
Rainfall return levels at Golconda River: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
69.7 mm (2.7 in)
5 years
93.4 mm (3.7 in)
10 years
112.5 mm (4.4 in)
25 years
141.3 mm (5.6 in)
50 years
166.7 mm (6.6 in)
100 years
195.9 mm (7.7 in)
Longer than the 74 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, 74 years of values from 1893 to 1979.
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: 202.9 mm (8.0 in) in 1910; 172.5 mm (6.8 in) in 1938; 151.4 mm (6.0 in) in 1972.
Download the Data
Data for Golconda River standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Golconda River 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.