Record envelope, standing records and threshold days for Clinton (USC00191561), Massachusetts, United States, with 90 years of record.
Key Facts for Clinton
Clinton (USC00191561) is a weather station in Massachusetts, United States at 42.40 latitude and -71.68 longitude, 122 m (400 ft) above sea level.
The station reports from 1896 to 1985, 90 years of record.
1,464 records set at Clinton still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Clinton tied a daily record low maximum temperature of -6.7 C (19.9 F) on 19 December 1985.
About the Station
Location: Massachusetts, United States, 42.40 latitude, -71.68 longitude.
Elevation: 122 m (400 ft).
Period of record: 1896 to 1985, 90 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 Clinton. 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 Clinton, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
17.8 C (64.0 F)
-32.2 C (-26.0 F)
n/a
n/a
Feb
21.1 C (70.0 F)
-26.7 C (-16.1 F)
n/a
n/a
Mar
28.3 C (82.9 F)
-21.1 C (-6.0 F)
n/a
n/a
Apr
32.2 C (90.0 F)
-10.6 C (12.9 F)
n/a
n/a
May
36.1 C (97.0 F)
-2.2 C (28.0 F)
n/a
n/a
Jun
35.6 C (96.1 F)
1.1 C (34.0 F)
n/a
n/a
Jul
37.8 C (100.0 F)
5.6 C (42.1 F)
n/a
n/a
Aug
36.7 C (98.1 F)
1.7 C (35.1 F)
n/a
n/a
Sep
37.2 C (99.0 F)
-3.9 C (25.0 F)
n/a
n/a
Oct
30.0 C (86.0 F)
-7.8 C (18.0 F)
n/a
n/a
Nov
25.6 C (78.1 F)
-12.8 C (9.0 F)
n/a
n/a
Dec
20.6 C (69.1 F)
-23.9 C (-11.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Clinton still stand. 1979 holds the most, with 56.
Standing records at Clinton by the year they were set
Year set
Standing records
1896
9
1898
23
1899
4
1900
21
1905
34
1906
33
1908
17
1909
25
1910
30
1911
51
1912
20
1913
27
1914
44
1929
2
1948
20
1949
47
1950
25
1951
23
1952
12
1953
27
1954
30
1955
21
1956
46
1957
31
1958
18
1959
30
1960
15
1961
31
1962
34
1963
39
1964
23
1965
24
1966
14
1967
31
1968
24
1969
17
1970
26
1971
46
1972
16
1973
31
1974
46
1975
25
1976
42
1977
37
1978
23
1979
56
1980
30
1981
42
1982
44
1983
21
1984
42
1985
15
All-Time Record Progression
1 new records
1 all-time records were set at Clinton between 22 January 1984 and 22 January 1984. Each dot is a new record.
When Clinton set new all-time records
Date
Kind
Detail
1984-01-22
Record low minimum temperature
Record low minimum temperature -32.2 C (-26.0 F)
Wettest Day of Each Month
Sep: 190.5 mm (7.5 in)
The wettest day on record for each calendar month at Clinton. The most was 190.5 mm (7.5 in) on 17 September 1933.
Record daily precipitation for each month at Clinton
Month
Record daily precipitation (mm)
Date
Jan
90.9 mm (3.6 in)
25 January 1979
Feb
101.6 mm (4.0 in)
9 February 1905
Mar
87.9 mm (3.5 in)
19 March 1936
Apr
118.1 mm (4.6 in)
29 April 1904
May
114.8 mm (4.5 in)
29 May 1906
Jun
112.3 mm (4.4 in)
10 June 1931
Jul
91.4 mm (3.6 in)
19 July 1951
Aug
180.3 mm (7.1 in)
19 August 1955
Sep
190.5 mm (7.5 in)
17 September 1933
Oct
106.2 mm (4.2 in)
24 October 1923
Nov
171.7 mm (6.8 in)
4 November 1927
Dec
108.5 mm (4.3 in)
6 December 1925
Period of Record Coverage
1896 to 1985
Complete yearUnder 90 percent of days
52 years of record at Clinton, 1896 to 1985. 12 years have data for under 90 percent of days and are left out of rankings: 1896, 1898, 1899, 1900, 1906, 1908, 1909, 1929 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 34 complete years at Clinton, 1911 to 1985. Blue stripes are years cooler than the station's own mean of 8.8 C (47.9 F); red stripes are warmer. The coolest year was 1972, at 7.9 C (46.2 F), and the warmest was 1953, at 11.0 C (51.7 F). The strongest colour marks a difference of 2.2 C (4.0 F).
Annual mean temperature at Clinton as warming stripes, 1911 to 1985
Year
Annual mean temperature
Difference from the station mean
1911
8.9 C
+0.09 C
1912
8.3 C
-0.52 C
1913
9.6 C
+0.78 C
1949
10.5 C
+1.67 C
1953
11.0 C
+2.11 C
1954
9.2 C
+0.36 C
1956
8.4 C
-0.43 C
1957
9.7 C
+0.84 C
1958
8.4 C
-0.47 C
1959
9.4 C
+0.54 C
1960
9.0 C
+0.16 C
1961
8.9 C
+0.06 C
1962
8.1 C
-0.78 C
1963
8.5 C
-0.40 C
1964
8.8 C
-0.10 C
1965
8.4 C
-0.43 C
1966
8.9 C
+0.05 C
1967
8.2 C
-0.63 C
1968
8.4 C
-0.46 C
1969
8.8 C
-0.10 C
1970
8.3 C
-0.53 C
1971
8.2 C
-0.68 C
1972
7.9 C
-0.98 C
1973
9.2 C
+0.31 C
1974
8.3 C
-0.55 C
1975
8.9 C
+0.04 C
1978
9.6 C
+0.75 C
1979
9.0 C
+0.16 C
1980
8.0 C
-0.82 C
1981
8.4 C
-0.48 C
1982
8.5 C
-0.38 C
1983
9.5 C
+0.63 C
1984
9.1 C
+0.29 C
1985
8.7 C
-0.17 C
The fitted trend in annual mean temperature here over 1911 to 1985 is -0.08 C (-0.21 to 0.05) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.1 F (-0.4 to 0.1) per decade. The slope is a straight line fitted to 34 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Clinton
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.08 C (-0.21 to 0.05) per decade
-0.1 F (-0.4 to 0.1) per decade
1911 to 1985
34
Not clearly different from zero
Mean daily maximum
0.03 C (-0.12 to 0.18) per decade
0.1 F (-0.2 to 0.3) per decade
1911 to 1985
34
Not clearly different from zero
Mean daily minimum
-0.19 C (-0.35 to -0.03) per decade
-0.3 F (-0.6 to -0.1) per decade
1911 to 1985
34
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
1896 to 1985
Yearly extremes at Clinton: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
37.8 C (100.0 F)
1911
33.6 C (92.5 F)
52
Coldest night (TNn)
-32.2 C (-26.0 F)
1984
-22.2 C (-8.0 F)
53
Wettest day (Rx1day)
190.5 mm (7.5 in)
1933
69.1 mm (2.7 in)
83
Wettest five days (Rx5day)
242.0 mm (9.5 in)
1955
96.2 mm (3.8 in)
76
Longest dry spell (CDD)
36 days
1947
16 days
81
Hottest day (TXx)
The hottest day of the year at Clinton, 1896 to 1985. The record is 37.8 C (100.0 F) in 1911, marked on the chart; the median year is 33.6 C (92.5 F).
Hottest day (TXx) at Clinton by year
Year
Hottest day (TXx)
1896
25.0 C (77.0 F)
1898
33.9 C (93.0 F)
1899
28.3 C (82.9 F)
1900
37.2 C (99.0 F)
1901
n/a
1902
n/a
1903
n/a
1904
n/a
1905
32.2 C (90.0 F)
1906
32.2 C (90.0 F)
1907
n/a
1908
35.0 C (95.0 F)
1909
32.2 C (90.0 F)
1910
33.3 C (91.9 F)
1911
37.8 C (100.0 F)
1912
34.4 C (93.9 F)
1913
32.2 C (90.0 F)
1914
33.3 C (91.9 F)
1915
n/a
1916
n/a
1917
n/a
1918
n/a
1919
n/a
1920
n/a
1921
n/a
1922
n/a
1923
n/a
1924
n/a
1925
n/a
1926
n/a
1927
n/a
1928
n/a
1929
30.0 C (86.0 F)
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
n/a
1943
n/a
1944
n/a
1945
n/a
1946
n/a
1947
n/a
1948
36.1 C (97.0 F)
1949
36.7 C (98.1 F)
1950
30.0 C (86.0 F)
1951
29.4 C (84.9 F)
1952
33.3 C (91.9 F)
1953
35.6 C (96.1 F)
1954
33.3 C (91.9 F)
1955
33.9 C (93.0 F)
1956
35.0 C (95.0 F)
1957
33.9 C (93.0 F)
1958
30.6 C (87.1 F)
1959
33.3 C (91.9 F)
1960
30.6 C (87.1 F)
1961
32.8 C (91.0 F)
1962
36.1 C (97.0 F)
1963
35.6 C (96.1 F)
1964
34.4 C (93.9 F)
1965
32.8 C (91.0 F)
1966
35.0 C (95.0 F)
1967
32.2 C (90.0 F)
1968
33.3 C (91.9 F)
1969
32.2 C (90.0 F)
1970
34.4 C (93.9 F)
1971
33.3 C (91.9 F)
1972
31.1 C (88.0 F)
1973
34.4 C (93.9 F)
1974
33.3 C (91.9 F)
1975
36.1 C (97.0 F)
1976
32.8 C (91.0 F)
1977
35.6 C (96.1 F)
1978
34.4 C (93.9 F)
1979
35.0 C (95.0 F)
1980
35.6 C (96.1 F)
1981
35.0 C (95.0 F)
1982
35.0 C (95.0 F)
1983
35.6 C (96.1 F)
1984
34.4 C (93.9 F)
1985
32.2 C (90.0 F)
Coldest night (TNn)
The coldest night of the year at Clinton, 1896 to 1985. The record is -32.2 C (-26.0 F) in 1984, marked on the chart; the median year is -22.2 C (-8.0 F).
Coldest night (TNn) at Clinton by year
Year
Coldest night (TNn)
1896
-17.8 C (0.0 F)
1898
-23.9 C (-11.0 F)
1899
-22.8 C (-9.0 F)
1900
-5.0 C (23.0 F)
1901
n/a
1902
n/a
1903
n/a
1904
n/a
1905
-21.1 C (-6.0 F)
1906
-21.1 C (-6.0 F)
1907
n/a
1908
-16.7 C (1.9 F)
1909
-20.0 C (-4.0 F)
1910
-22.2 C (-8.0 F)
1911
-19.4 C (-2.9 F)
1912
-26.1 C (-15.0 F)
1913
-21.7 C (-7.1 F)
1914
-26.7 C (-16.1 F)
1915
n/a
1916
n/a
1917
n/a
1918
n/a
1919
n/a
1920
n/a
1921
n/a
1922
n/a
1923
n/a
1924
n/a
1925
n/a
1926
-1.1 C (30.0 F)
1927
n/a
1928
n/a
1929
6.1 C (43.0 F)
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
n/a
1943
n/a
1944
n/a
1945
n/a
1946
n/a
1947
n/a
1948
-16.1 C (3.0 F)
1949
-18.3 C (-0.9 F)
1950
-22.8 C (-9.0 F)
1951
-20.0 C (-4.0 F)
1952
-20.6 C (-5.1 F)
1953
-14.4 C (6.1 F)
1954
-21.1 C (-6.0 F)
1955
-22.8 C (-9.0 F)
1956
-21.1 C (-6.0 F)
1957
-27.8 C (-18.0 F)
1958
-23.3 C (-9.9 F)
1959
-19.4 C (-2.9 F)
1960
-17.8 C (0.0 F)
1961
-28.9 C (-20.0 F)
1962
-26.1 C (-15.0 F)
1963
-23.9 C (-11.0 F)
1964
-20.0 C (-4.0 F)
1965
-22.8 C (-9.0 F)
1966
-20.0 C (-4.0 F)
1967
-20.6 C (-5.1 F)
1968
-23.3 C (-9.9 F)
1969
-17.8 C (0.0 F)
1970
-20.6 C (-5.1 F)
1971
-26.7 C (-16.1 F)
1972
-26.1 C (-15.0 F)
1973
-23.3 C (-9.9 F)
1974
-24.4 C (-11.9 F)
1975
-23.3 C (-9.9 F)
1976
-22.2 C (-8.0 F)
1977
-22.2 C (-8.0 F)
1978
-22.2 C (-8.0 F)
1979
-22.2 C (-8.0 F)
1980
-23.3 C (-9.9 F)
1981
-23.3 C (-9.9 F)
1982
-25.6 C (-14.1 F)
1983
-22.2 C (-8.0 F)
1984
-32.2 C (-26.0 F)
1985
-22.2 C (-8.0 F)
Wettest day (Rx1day)
The wettest day of the year at Clinton, 1896 to 1985. The record is 190.5 mm (7.5 in) in 1933, marked on the chart; the median year is 69.1 mm (2.7 in).
Wettest day (Rx1day) at Clinton by year
Year
Wettest day (Rx1day)
1896
n/a
1898
n/a
1899
64.8 mm (2.6 in)
1900
64.0 mm (2.5 in)
1901
76.7 mm (3.0 in)
1902
74.9 mm (2.9 in)
1903
99.8 mm (3.9 in)
1904
118.1 mm (4.6 in)
1905
150.6 mm (5.9 in)
1906
114.8 mm (4.5 in)
1907
87.4 mm (3.4 in)
1908
55.1 mm (2.2 in)
1909
66.8 mm (2.6 in)
1910
50.0 mm (2.0 in)
1911
n/a
1912
n/a
1913
n/a
1914
n/a
1915
87.1 mm (3.4 in)
1916
69.3 mm (2.7 in)
1917
70.1 mm (2.8 in)
1918
67.6 mm (2.7 in)
1919
70.1 mm (2.8 in)
1920
76.7 mm (3.0 in)
1921
106.2 mm (4.2 in)
1922
83.8 mm (3.3 in)
1923
129.8 mm (5.1 in)
1924
63.0 mm (2.5 in)
1925
108.5 mm (4.3 in)
1926
48.3 mm (1.9 in)
1927
171.7 mm (6.8 in)
1928
55.9 mm (2.2 in)
1929
57.2 mm (2.3 in)
1930
81.8 mm (3.2 in)
1931
112.3 mm (4.4 in)
1932
165.1 mm (6.5 in)
1933
190.5 mm (7.5 in)
1934
100.3 mm (3.9 in)
1935
89.9 mm (3.5 in)
1936
87.9 mm (3.5 in)
1937
97.5 mm (3.8 in)
1938
185.4 mm (7.3 in)
1939
85.3 mm (3.4 in)
1940
69.1 mm (2.7 in)
1941
52.8 mm (2.1 in)
1942
79.2 mm (3.1 in)
1943
52.1 mm (2.1 in)
1944
114.6 mm (4.5 in)
1945
66.8 mm (2.6 in)
1946
75.4 mm (3.0 in)
1947
88.6 mm (3.5 in)
1948
49.3 mm (1.9 in)
1949
37.3 mm (1.5 in)
1950
51.6 mm (2.0 in)
1951
92.2 mm (3.6 in)
1952
55.4 mm (2.2 in)
1953
42.4 mm (1.7 in)
1954
130.6 mm (5.1 in)
1955
180.3 mm (7.1 in)
1956
65.5 mm (2.6 in)
1957
32.5 mm (1.3 in)
1958
51.6 mm (2.0 in)
1959
67.3 mm (2.6 in)
1960
81.8 mm (3.2 in)
1961
92.7 mm (3.6 in)
1962
90.9 mm (3.6 in)
1963
60.5 mm (2.4 in)
1964
56.6 mm (2.2 in)
1965
36.8 mm (1.4 in)
1966
58.9 mm (2.3 in)
1967
53.3 mm (2.1 in)
1968
77.0 mm (3.0 in)
1969
64.3 mm (2.5 in)
1970
62.7 mm (2.5 in)
1971
53.3 mm (2.1 in)
1972
65.5 mm (2.6 in)
1973
59.4 mm (2.3 in)
1974
55.1 mm (2.2 in)
1975
52.6 mm (2.1 in)
1976
53.8 mm (2.1 in)
1977
59.4 mm (2.3 in)
1978
44.5 mm (1.8 in)
1979
90.9 mm (3.6 in)
1980
60.5 mm (2.4 in)
1981
41.9 mm (1.6 in)
1982
77.5 mm (3.1 in)
1983
54.6 mm (2.1 in)
1984
60.5 mm (2.4 in)
1985
77.0 mm (3.0 in)
Wettest five days (Rx5day)
The wettest five days of the year at Clinton, 1896 to 1985. The record is 242.0 mm (9.5 in) in 1955, marked on the chart; the median year is 96.2 mm (3.8 in).
Wettest five days (Rx5day) at Clinton by year
Year
Wettest five days (Rx5day)
1896
n/a
1898
n/a
1899
n/a
1900
n/a
1901
n/a
1902
n/a
1903
130.8 mm (5.1 in)
1904
37.4 mm (1.5 in)
1905
177.8 mm (7.0 in)
1906
62.2 mm (2.4 in)
1907
49.7 mm (2.0 in)
1908
n/a
1909
n/a
1910
n/a
1911
n/a
1912
n/a
1913
n/a
1914
n/a
1915
95.5 mm (3.8 in)
1916
75.5 mm (3.0 in)
1917
96.8 mm (3.8 in)
1918
93.2 mm (3.7 in)
1919
85.0 mm (3.3 in)
1920
90.9 mm (3.6 in)
1921
132.1 mm (5.2 in)
1922
139.7 mm (5.5 in)
1923
132.1 mm (5.2 in)
1924
63.0 mm (2.5 in)
1925
109.8 mm (4.3 in)
1926
62.8 mm (2.5 in)
1927
172.2 mm (6.8 in)
1928
78.7 mm (3.1 in)
1929
101.0 mm (4.0 in)
1930
56.4 mm (2.2 in)
1931
130.1 mm (5.1 in)
1932
165.7 mm (6.5 in)
1933
198.2 mm (7.8 in)
1934
104.9 mm (4.1 in)
1935
97.3 mm (3.8 in)
1936
104.9 mm (4.1 in)
1937
97.8 mm (3.9 in)
1938
185.9 mm (7.3 in)
1939
95.5 mm (3.8 in)
1940
90.1 mm (3.5 in)
1941
57.7 mm (2.3 in)
1942
79.2 mm (3.1 in)
1943
79.2 mm (3.1 in)
1944
131.0 mm (5.2 in)
1945
67.8 mm (2.7 in)
1946
75.4 mm (3.0 in)
1947
102.3 mm (4.0 in)
1948
82.3 mm (3.2 in)
1949
49.1 mm (1.9 in)
1950
62.5 mm (2.5 in)
1951
146.3 mm (5.8 in)
1952
108.0 mm (4.3 in)
1953
94.0 mm (3.7 in)
1954
135.2 mm (5.3 in)
1955
242.0 mm (9.5 in)
1956
127.8 mm (5.0 in)
1957
75.6 mm (3.0 in)
1958
79.8 mm (3.1 in)
1959
106.2 mm (4.2 in)
1960
105.2 mm (4.1 in)
1961
122.1 mm (4.8 in)
1962
158.7 mm (6.2 in)
1963
119.2 mm (4.7 in)
1964
72.3 mm (2.8 in)
1965
47.7 mm (1.9 in)
1966
79.8 mm (3.1 in)
1967
77.9 mm (3.1 in)
1968
118.6 mm (4.7 in)
1969
87.0 mm (3.4 in)
1970
102.8 mm (4.0 in)
1971
105.9 mm (4.2 in)
1972
77.8 mm (3.1 in)
1973
93.7 mm (3.7 in)
1974
102.8 mm (4.0 in)
1975
142.6 mm (5.6 in)
1976
94.9 mm (3.7 in)
1977
97.8 mm (3.9 in)
1978
90.5 mm (3.6 in)
1979
167.3 mm (6.6 in)
1980
86.7 mm (3.4 in)
1981
87.9 mm (3.5 in)
1982
178.8 mm (7.0 in)
1983
86.6 mm (3.4 in)
1984
170.3 mm (6.7 in)
1985
89.4 mm (3.5 in)
Longest dry spell (CDD)
The longest dry spell of the year at Clinton, 1896 to 1985. The record is 36 days in 1947, marked on the chart; the median year is 16 days.
Longest dry spell (CDD) at Clinton by year
Year
Longest dry spell (CDD)
1896
n/a
1898
n/a
1899
n/a
1900
1 day
1901
2 days
1902
2 days
1903
16 days
1904
2 days
1905
17 days
1906
17 days
1907
6 days
1908
2 days
1909
2 days
1910
n/a
1911
n/a
1912
n/a
1913
n/a
1914
n/a
1915
24 days
1916
13 days
1917
26 days
1918
19 days
1919
15 days
1920
22 days
1921
22 days
1922
21 days
1923
16 days
1924
34 days
1925
13 days
1926
16 days
1927
16 days
1928
15 days
1929
20 days
1930
24 days
1931
18 days
1932
19 days
1933
11 days
1934
19 days
1935
20 days
1936
14 days
1937
13 days
1938
13 days
1939
26 days
1940
18 days
1941
18 days
1942
12 days
1943
19 days
1944
15 days
1945
16 days
1946
20 days
1947
36 days
1948
12 days
1949
23 days
1950
25 days
1951
13 days
1952
17 days
1953
15 days
1954
19 days
1955
19 days
1956
15 days
1957
16 days
1958
21 days
1959
14 days
1960
18 days
1961
21 days
1962
13 days
1963
23 days
1964
17 days
1965
14 days
1966
13 days
1967
12 days
1968
22 days
1969
16 days
1970
15 days
1971
14 days
1972
13 days
1973
15 days
1974
14 days
1975
20 days
1976
18 days
1977
14 days
1978
24 days
1979
14 days
1980
24 days
1981
17 days
1982
19 days
1983
15 days
1984
19 days
1985
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
34 years with a frost
Across 34 years with a frost, the median last spring frost at Clinton falls on 30 April and the median first autumn frost on 7 October, which leaves a median of 158 days between them.
Fitted over all years, the growing season changes by -1.6 days per decade at this station.
Frost dates and growing season at Clinton
Measure
Median, all years
Earliest period
Recent period (1953 to 1985)
Recent against earliest
Fitted trend
Last spring frost
30 April
n/a
30 April
n/a
+1.7 days per decade
First autumn frost
7 October
n/a
7 October
n/a
+0.1 days per decade
Growing days
158 days
n/a
158 days
n/a
-1.6 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
63 years, 1903 to 1985
A day with at least 68.4 mm (2.7 in) of rain is expected about once in 2 years. A day with at least 197.9 mm (7.8 in) of rain is expected about once in 100 years.
Rainfall return levels at Clinton: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
68.4 mm (2.7 in)
5 years
94.3 mm (3.7 in)
10 years
114.4 mm (4.5 in)
25 years
144.0 mm (5.7 in)
50 years
169.4 mm (6.7 in)
100 years
197.9 mm (7.8 in)
Longer than the 63 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, 63 years of values from 1903 to 1985.
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: 190.5 mm (7.5 in) in 1933; 180.3 mm (7.1 in) in 1955; 165.1 mm (6.5 in) in 1932.
Download the Data
Data for Clinton standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Clinton 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.