Record envelope, standing records and threshold days for Hennessey 4 ESE (USC00344055), Oklahoma, United States, with 118 years of record.
Key Facts for Hennessey 4 ESE
Hennessey 4 ESE (USC00344055) is a weather station in Oklahoma, United States at 36.09 latitude and -97.83 longitude, 358 m (1,174 ft) above sea level.
The station reports from 1895 to 2012, 118 years of record.
1,464 records set at Hennessey 4 ESE still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Hennessey 4 ESE set a daily record high minimum temperature of 17.8 C (64.0 F) on 18 March 2012.
About the Station
Location: Oklahoma, United States, 36.09 latitude, -97.83 longitude.
Elevation: 358 m (1,174 ft).
Period of record: 1895 to 2012, 118 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 Hennessey 4 ESE. 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 Hennessey 4 ESE, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
27.2 C (81.0 F)
-26.1 C (-15.0 F)
n/a
n/a
Feb
31.1 C (88.0 F)
-28.9 C (-20.0 F)
n/a
n/a
Mar
35.0 C (95.0 F)
-18.3 C (-0.9 F)
n/a
n/a
Apr
38.9 C (102.0 F)
-8.9 C (16.0 F)
n/a
n/a
May
40.0 C (104.0 F)
-0.6 C (30.9 F)
n/a
n/a
Jun
44.4 C (111.9 F)
7.2 C (45.0 F)
n/a
n/a
Jul
45.6 C (114.1 F)
10.6 C (51.1 F)
n/a
n/a
Aug
46.7 C (116.1 F)
7.2 C (45.0 F)
n/a
n/a
Sep
43.3 C (109.9 F)
0.0 C (32.0 F)
n/a
n/a
Oct
37.2 C (99.0 F)
-10.0 C (14.0 F)
n/a
n/a
Nov
31.7 C (89.1 F)
-13.3 C (8.1 F)
n/a
n/a
Dec
29.4 C (84.9 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 Hennessey 4 ESE still stand. 1936 holds the most, with 42.
Standing records at Hennessey 4 ESE by the year they were set
Year set
Standing records
1895
26
1896
28
1897
20
1898
32
1899
31
1915
16
1916
8
1917
23
1918
18
1919
8
1920
10
1921
14
1922
19
1923
11
1924
18
1925
22
1926
14
1927
12
1928
14
1929
11
1930
20
1931
15
1932
14
1933
17
1934
24
1935
11
1936
42
1937
14
1938
14
1939
19
1940
17
1941
5
1942
7
1943
19
1944
8
1945
16
1946
17
1947
24
1948
12
1949
5
1950
24
1951
23
1952
20
1953
31
1954
23
1955
19
1956
22
1957
5
1958
9
1959
9
1960
19
1961
10
1962
14
1963
11
1964
15
1965
12
1966
17
1967
19
1968
11
1969
3
1970
14
1971
7
1972
15
1973
8
1974
13
1975
4
1976
11
1977
6
1978
10
1979
11
1980
9
1981
10
1982
7
1983
24
1984
8
1985
5
1986
15
1987
5
1988
9
1989
16
1990
10
1991
12
1992
12
1993
9
1994
12
1995
15
1996
15
1997
10
1998
10
1999
8
2000
16
2001
7
2002
13
2003
12
2004
15
2005
7
2006
16
2007
7
2008
9
2009
11
2010
5
2011
31
2012
4
All-Time Record Progression
4 new records
4 all-time records were set at Hennessey 4 ESE between 15 May 1957 and 11 February 2011. Each dot is a new record.
When Hennessey 4 ESE set new all-time records
Date
Kind
Detail
1957-05-15
Record daily precipitation
Record daily precipitation 248.4 mm (9.8 in)
1983-12-22
Record low maximum temperature
Record low maximum temperature -15.0 C (5.0 F)
1988-01-07
Record daily snowfall
Record daily snowfall 27.9 cm (11.0 in)
2011-02-11
Record low minimum temperature
Record low minimum temperature -28.9 C (-20.0 F)
Wettest Day of Each Month
May: 248.4 mm (9.8 in)
The wettest day on record for each calendar month at Hennessey 4 ESE. The most was 248.4 mm (9.8 in) on 15 May 1957.
Record daily precipitation for each month at Hennessey 4 ESE
Month
Record daily precipitation (mm)
Date
Jan
53.1 mm (2.1 in)
10 January 1949
Feb
74.9 mm (2.9 in)
9 February 1898
Mar
131.3 mm (5.2 in)
5 March 2004
Apr
75.7 mm (3.0 in)
19 April 1942
May
248.4 mm (9.8 in)
15 May 1957
Jun
115.6 mm (4.6 in)
21 June 1948
Jul
100.6 mm (4.0 in)
7 July 1982
Aug
127.0 mm (5.0 in)
17 August 1932
Sep
162.8 mm (6.4 in)
13 September 1961
Oct
125.7 mm (4.9 in)
3 October 1986
Nov
104.6 mm (4.1 in)
20 November 1994
Dec
76.2 mm (3.0 in)
18 December 1898
Period of Record Coverage
1895 to 2012
Complete yearUnder 90 percent of days
103 years of record at Hennessey 4 ESE, 1895 to 2012. 16 years have data for under 90 percent of days and are left out of rankings: 1895, 1896, 1897, 1898, 1899, 1915, 1916, 1917 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 75 complete years at Hennessey 4 ESE, 1921 to 2011. Blue stripes are years cooler than the station's own mean of 15.6 C (60.1 F); red stripes are warmer. The coolest year was 2009, at 14.3 C (57.7 F), and the warmest was 1946, at 17.2 C (62.9 F). The strongest colour marks a difference of 1.6 C (2.9 F).
Annual mean temperature at Hennessey 4 ESE as warming stripes, 1921 to 2011
Year
Annual mean temperature
Difference from the station mean
1921
16.8 C
+1.19 C
1922
15.8 C
+0.20 C
1923
15.9 C
+0.27 C
1924
15.2 C
-0.47 C
1925
16.2 C
+0.60 C
1926
16.0 C
+0.37 C
1927
16.0 C
+0.37 C
1929
15.0 C
-0.58 C
1930
16.0 C
+0.34 C
1931
16.5 C
+0.84 C
1932
15.3 C
-0.37 C
1933
16.7 C
+1.10 C
1934
16.7 C
+1.04 C
1935
15.8 C
+0.14 C
1936
16.2 C
+0.61 C
1937
15.4 C
-0.22 C
1938
16.5 C
+0.86 C
1939
16.9 C
+1.24 C
1940
14.8 C
-0.82 C
1941
15.3 C
-0.28 C
1942
15.6 C
+0.00 C
1943
16.6 C
+1.01 C
1944
16.3 C
+0.66 C
1945
15.7 C
+0.08 C
1946
17.2 C
+1.55 C
1947
16.3 C
+0.72 C
1948
16.2 C
+0.53 C
1949
16.2 C
+0.61 C
1950
16.2 C
+0.55 C
1951
15.6 C
-0.05 C
1952
16.2 C
+0.59 C
1955
16.0 C
+0.38 C
1956
16.9 C
+1.30 C
1957
15.1 C
-0.49 C
1958
15.2 C
-0.41 C
1959
15.3 C
-0.28 C
1960
14.5 C
-1.08 C
1961
14.9 C
-0.71 C
1962
15.7 C
+0.12 C
1963
16.3 C
+0.69 C
1964
15.8 C
+0.20 C
1965
16.2 C
+0.54 C
1967
15.5 C
-0.14 C
1969
15.5 C
-0.11 C
1970
15.7 C
+0.12 C
1974
15.7 C
+0.10 C
1975
15.2 C
-0.38 C
1977
16.4 C
+0.77 C
1979
14.4 C
-1.18 C
1983
14.5 C
-1.15 C
1984
15.2 C
-0.41 C
1986
16.2 C
+0.59 C
1987
15.4 C
-0.20 C
1988
15.1 C
-0.54 C
1989
14.4 C
-1.27 C
1991
16.0 C
+0.37 C
1992
15.3 C
-0.35 C
1993
14.6 C
-1.06 C
1994
15.3 C
-0.31 C
1995
15.0 C
-0.64 C
1996
14.9 C
-0.73 C
1997
14.9 C
-0.77 C
1998
16.6 C
+0.96 C
1999
15.8 C
+0.16 C
2000
15.3 C
-0.33 C
2001
15.5 C
-0.16 C
2003
14.4 C
-1.19 C
2004
14.7 C
-0.94 C
2005
15.2 C
-0.42 C
2006
16.0 C
+0.41 C
2007
14.6 C
-1.02 C
2008
14.4 C
-1.26 C
2009
14.3 C
-1.32 C
2010
14.9 C
-0.76 C
2011
15.7 C
+0.09 C
The annual mean temperature here has fallen by 0.1 C (0.1 to 0.2) per decade over 1921 to 2011. In Fahrenheit: 0.2 F (0.1 to 0.3) per decade. The slope is a straight line fitted to 75 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Hennessey 4 ESE
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.1 C (-0.2 to -0.1) per decade
-0.2 F (-0.3 to -0.1) per decade
1921 to 2011
75
Fall
Mean daily maximum
-0.2 C (-0.3 to -0.1) per decade
-0.3 F (-0.5 to -0.2) per decade
1921 to 2011
75
Fall
Mean daily minimum
-0.08 C (-0.13 to -0.03) per decade
-0.1 F (-0.2 to -0.1) per decade
1921 to 2011
75
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
1895 to 2012
Yearly extremes at Hennessey 4 ESE: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
46.7 C (116.1 F)
1922
41.7 C (107.1 F)
103
Coldest night (TNn)
-28.9 C (-20.0 F)
2011
-16.1 C (3.0 F)
103
Wettest day (Rx1day)
248.4 mm (9.8 in)
1957
63.5 mm (2.5 in)
103
Wettest five days (Rx5day)
355.1 mm (14.0 in)
1986
94.5 mm (3.7 in)
103
Longest dry spell (CDD)
76 days
2000
35 days
103
Hottest day (TXx)
The hottest day of the year at Hennessey 4 ESE, 1895 to 2012. The record is 46.7 C (116.1 F) in 1922, marked on the chart; the median year is 41.7 C (107.1 F).
Hottest day (TXx) at Hennessey 4 ESE by year
Year
Hottest day (TXx)
1895
39.4 C (102.9 F)
1896
40.0 C (104.0 F)
1897
42.2 C (108.0 F)
1898
36.7 C (98.1 F)
1899
42.2 C (108.0 F)
1915
37.8 C (100.0 F)
1916
41.1 C (106.0 F)
1917
41.7 C (107.1 F)
1918
41.1 C (106.0 F)
1919
40.0 C (104.0 F)
1920
40.6 C (105.1 F)
1921
42.2 C (108.0 F)
1922
46.7 C (116.1 F)
1923
43.9 C (111.0 F)
1924
43.3 C (109.9 F)
1925
42.2 C (108.0 F)
1926
41.1 C (106.0 F)
1927
40.0 C (104.0 F)
1928
40.0 C (104.0 F)
1929
43.3 C (109.9 F)
1930
43.9 C (111.0 F)
1931
41.7 C (107.1 F)
1932
38.9 C (102.0 F)
1933
42.8 C (109.0 F)
1934
43.3 C (109.9 F)
1935
43.3 C (109.9 F)
1936
46.7 C (116.1 F)
1937
44.4 C (111.9 F)
1938
39.4 C (102.9 F)
1939
43.3 C (109.9 F)
1940
39.4 C (102.9 F)
1941
41.1 C (106.0 F)
1942
39.4 C (102.9 F)
1943
43.3 C (109.9 F)
1944
41.7 C (107.1 F)
1945
42.2 C (108.0 F)
1946
43.9 C (111.0 F)
1947
43.3 C (109.9 F)
1948
40.6 C (105.1 F)
1949
41.7 C (107.1 F)
1950
40.0 C (104.0 F)
1951
43.9 C (111.0 F)
1952
42.8 C (109.0 F)
1953
44.4 C (111.9 F)
1954
45.6 C (114.1 F)
1955
40.6 C (105.1 F)
1956
45.0 C (113.0 F)
1957
41.7 C (107.1 F)
1958
42.8 C (109.0 F)
1959
42.2 C (108.0 F)
1960
40.0 C (104.0 F)
1961
40.0 C (104.0 F)
1962
41.7 C (107.1 F)
1963
42.2 C (108.0 F)
1964
45.6 C (114.1 F)
1965
42.8 C (109.0 F)
1966
43.3 C (109.9 F)
1967
41.7 C (107.1 F)
1968
42.2 C (108.0 F)
1969
43.9 C (111.0 F)
1970
43.9 C (111.0 F)
1971
44.4 C (111.9 F)
1972
39.4 C (102.9 F)
1973
40.6 C (105.1 F)
1974
42.8 C (109.0 F)
1975
37.8 C (100.0 F)
1976
41.1 C (106.0 F)
1977
39.4 C (102.9 F)
1978
42.2 C (108.0 F)
1979
38.9 C (102.0 F)
1980
42.8 C (109.0 F)
1981
42.8 C (109.0 F)
1982
41.1 C (106.0 F)
1983
41.7 C (107.1 F)
1984
42.8 C (109.0 F)
1985
41.1 C (106.0 F)
1986
44.4 C (111.9 F)
1987
39.4 C (102.9 F)
1988
40.6 C (105.1 F)
1989
38.3 C (100.9 F)
1990
41.1 C (106.0 F)
1991
40.6 C (105.1 F)
1992
37.8 C (100.0 F)
1993
41.7 C (107.1 F)
1994
42.2 C (108.0 F)
1995
42.2 C (108.0 F)
1996
44.4 C (111.9 F)
1997
38.3 C (100.9 F)
1998
42.8 C (109.0 F)
1999
40.6 C (105.1 F)
2000
42.8 C (109.0 F)
2001
42.8 C (109.0 F)
2002
38.9 C (102.0 F)
2003
42.8 C (109.0 F)
2004
39.4 C (102.9 F)
2005
39.4 C (102.9 F)
2006
41.7 C (107.1 F)
2007
40.0 C (104.0 F)
2008
41.1 C (106.0 F)
2009
43.3 C (109.9 F)
2010
41.7 C (107.1 F)
2011
45.6 C (114.1 F)
2012
28.3 C (82.9 F)
Coldest night (TNn)
The coldest night of the year at Hennessey 4 ESE, 1895 to 2012. The record is -28.9 C (-20.0 F) in 2011, marked on the chart; the median year is -16.1 C (3.0 F).
Coldest night (TNn) at Hennessey 4 ESE by year
Year
Coldest night (TNn)
1895
-13.3 C (8.1 F)
1896
-13.3 C (8.1 F)
1897
-12.2 C (10.0 F)
1898
-15.6 C (3.9 F)
1899
-27.2 C (-17.0 F)
1915
-11.1 C (12.0 F)
1916
-20.6 C (-5.1 F)
1917
-17.8 C (0.0 F)
1918
-22.2 C (-8.0 F)
1919
-16.1 C (3.0 F)
1920
-15.0 C (5.0 F)
1921
-13.3 C (8.1 F)
1922
-12.8 C (9.0 F)
1923
-14.4 C (6.1 F)
1924
-17.2 C (1.0 F)
1925
-15.6 C (3.9 F)
1926
-15.0 C (5.0 F)
1927
-16.1 C (3.0 F)
1928
-17.8 C (0.0 F)
1929
-21.1 C (-6.0 F)
1930
-26.1 C (-15.0 F)
1931
-10.0 C (14.0 F)
1932
-18.3 C (-0.9 F)
1933
-23.3 C (-9.9 F)
1934
-13.9 C (7.0 F)
1935
-20.0 C (-4.0 F)
1936
-20.0 C (-4.0 F)
1937
-15.6 C (3.9 F)
1938
-15.0 C (5.0 F)
1939
-15.0 C (5.0 F)
1940
-20.0 C (-4.0 F)
1941
-7.8 C (18.0 F)
1942
-20.0 C (-4.0 F)
1943
-21.1 C (-6.0 F)
1944
-15.0 C (5.0 F)
1945
-16.1 C (3.0 F)
1946
-15.0 C (5.0 F)
1947
-24.4 C (-11.9 F)
1948
-16.1 C (3.0 F)
1949
-17.8 C (0.0 F)
1950
-17.2 C (1.0 F)
1951
-20.6 C (-5.1 F)
1952
-11.1 C (12.0 F)
1953
-14.4 C (6.1 F)
1954
-20.6 C (-5.1 F)
1955
-12.8 C (9.0 F)
1956
-14.4 C (6.1 F)
1957
-12.8 C (9.0 F)
1958
-18.9 C (-2.0 F)
1959
-23.3 C (-9.9 F)
1960
-18.3 C (-0.9 F)
1961
-15.6 C (3.9 F)
1962
-18.3 C (-0.9 F)
1963
-20.6 C (-5.1 F)
1964
-16.7 C (1.9 F)
1965
-13.9 C (7.0 F)
1966
-18.3 C (-0.9 F)
1967
-15.6 C (3.9 F)
1968
-20.0 C (-4.0 F)
1969
-12.8 C (9.0 F)
1970
-15.6 C (3.9 F)
1971
-12.8 C (9.0 F)
1972
-17.2 C (1.0 F)
1973
-18.3 C (-0.9 F)
1974
-15.6 C (3.9 F)
1975
-13.3 C (8.1 F)
1976
-16.1 C (3.0 F)
1977
-17.2 C (1.0 F)
1978
-19.4 C (-2.9 F)
1979
-20.0 C (-4.0 F)
1980
-13.9 C (7.0 F)
1981
-18.3 C (-0.9 F)
1982
-19.4 C (-2.9 F)
1983
-19.4 C (-2.9 F)
1984
-22.8 C (-9.0 F)
1985
-16.1 C (3.0 F)
1986
-16.1 C (3.0 F)
1987
-17.8 C (0.0 F)
1988
-25.0 C (-13.0 F)
1989
-25.0 C (-13.0 F)
1990
-18.3 C (-0.9 F)
1991
-13.3 C (8.1 F)
1992
-10.6 C (12.9 F)
1993
-15.0 C (5.0 F)
1994
-13.9 C (7.0 F)
1995
-12.8 C (9.0 F)
1996
-24.4 C (-11.9 F)
1997
-16.1 C (3.0 F)
1998
-14.4 C (6.1 F)
1999
-13.3 C (8.1 F)
2000
-17.2 C (1.0 F)
2001
-13.3 C (8.1 F)
2002
-16.1 C (3.0 F)
2003
-19.4 C (-2.9 F)
2004
-15.6 C (3.9 F)
2005
-17.2 C (1.0 F)
2006
-13.9 C (7.0 F)
2007
-15.0 C (5.0 F)
2008
-14.4 C (6.1 F)
2009
-15.6 C (3.9 F)
2010
-16.7 C (1.9 F)
2011
-28.9 C (-20.0 F)
2012
-8.9 C (16.0 F)
Wettest day (Rx1day)
The wettest day of the year at Hennessey 4 ESE, 1895 to 2012. The record is 248.4 mm (9.8 in) in 1957, marked on the chart; the median year is 63.5 mm (2.5 in).
Wettest day (Rx1day) at Hennessey 4 ESE by year
Year
Wettest day (Rx1day)
1895
45.2 mm (1.8 in)
1896
39.4 mm (1.6 in)
1897
101.6 mm (4.0 in)
1898
83.8 mm (3.3 in)
1899
71.1 mm (2.8 in)
1915
43.2 mm (1.7 in)
1916
36.8 mm (1.4 in)
1917
50.8 mm (2.0 in)
1918
50.8 mm (2.0 in)
1919
63.5 mm (2.5 in)
1920
50.8 mm (2.0 in)
1921
33.0 mm (1.3 in)
1922
61.7 mm (2.4 in)
1923
43.2 mm (1.7 in)
1924
36.8 mm (1.4 in)
1925
61.5 mm (2.4 in)
1926
59.2 mm (2.3 in)
1927
45.7 mm (1.8 in)
1928
72.1 mm (2.8 in)
1929
69.9 mm (2.8 in)
1930
50.8 mm (2.0 in)
1931
66.5 mm (2.6 in)
1932
127.0 mm (5.0 in)
1933
66.8 mm (2.6 in)
1934
38.4 mm (1.5 in)
1935
63.5 mm (2.5 in)
1936
69.1 mm (2.7 in)
1937
50.5 mm (2.0 in)
1938
54.4 mm (2.1 in)
1939
50.3 mm (2.0 in)
1940
52.6 mm (2.1 in)
1941
100.3 mm (3.9 in)
1942
75.7 mm (3.0 in)
1943
66.8 mm (2.6 in)
1944
75.2 mm (3.0 in)
1945
69.3 mm (2.7 in)
1946
55.1 mm (2.2 in)
1947
50.5 mm (2.0 in)
1948
115.6 mm (4.6 in)
1949
68.1 mm (2.7 in)
1950
60.5 mm (2.4 in)
1951
65.3 mm (2.6 in)
1952
35.6 mm (1.4 in)
1953
52.6 mm (2.1 in)
1954
35.6 mm (1.4 in)
1955
104.1 mm (4.1 in)
1956
46.0 mm (1.8 in)
1957
248.4 mm (9.8 in)
1958
54.6 mm (2.1 in)
1959
56.6 mm (2.2 in)
1960
77.5 mm (3.1 in)
1961
162.8 mm (6.4 in)
1962
48.8 mm (1.9 in)
1963
75.7 mm (3.0 in)
1964
68.1 mm (2.7 in)
1965
59.2 mm (2.3 in)
1966
60.7 mm (2.4 in)
1967
62.2 mm (2.4 in)
1968
74.4 mm (2.9 in)
1969
50.0 mm (2.0 in)
1970
68.6 mm (2.7 in)
1971
71.9 mm (2.8 in)
1972
56.1 mm (2.2 in)
1973
54.6 mm (2.1 in)
1974
94.0 mm (3.7 in)
1975
74.2 mm (2.9 in)
1976
49.0 mm (1.9 in)
1977
61.0 mm (2.4 in)
1978
42.4 mm (1.7 in)
1979
71.1 mm (2.8 in)
1980
88.9 mm (3.5 in)
1981
48.3 mm (1.9 in)
1982
113.5 mm (4.5 in)
1983
127.8 mm (5.0 in)
1984
45.7 mm (1.8 in)
1985
55.4 mm (2.2 in)
1986
125.7 mm (4.9 in)
1987
57.2 mm (2.3 in)
1988
91.2 mm (3.6 in)
1989
85.9 mm (3.4 in)
1990
45.0 mm (1.8 in)
1991
43.2 mm (1.7 in)
1992
49.0 mm (1.9 in)
1993
141.0 mm (5.6 in)
1994
104.6 mm (4.1 in)
1995
92.7 mm (3.6 in)
1996
56.4 mm (2.2 in)
1997
74.4 mm (2.9 in)
1998
95.5 mm (3.8 in)
1999
64.3 mm (2.5 in)
2000
53.3 mm (2.1 in)
2001
121.9 mm (4.8 in)
2002
81.3 mm (3.2 in)
2003
80.0 mm (3.1 in)
2004
131.3 mm (5.2 in)
2005
76.5 mm (3.0 in)
2006
70.1 mm (2.8 in)
2007
81.8 mm (3.2 in)
2008
102.9 mm (4.1 in)
2009
67.8 mm (2.7 in)
2010
53.8 mm (2.1 in)
2011
64.8 mm (2.6 in)
2012
30.5 mm (1.2 in)
Wettest five days (Rx5day)
The wettest five days of the year at Hennessey 4 ESE, 1895 to 2012. The record is 355.1 mm (14.0 in) in 1986, marked on the chart; the median year is 94.5 mm (3.7 in).
Wettest five days (Rx5day) at Hennessey 4 ESE by year
Year
Wettest five days (Rx5day)
1895
87.3 mm (3.4 in)
1896
39.4 mm (1.6 in)
1897
128.7 mm (5.1 in)
1898
143.5 mm (5.6 in)
1899
121.4 mm (4.8 in)
1915
86.1 mm (3.4 in)
1916
60.9 mm (2.4 in)
1917
64.5 mm (2.5 in)
1918
72.4 mm (2.9 in)
1919
118.1 mm (4.6 in)
1920
91.5 mm (3.6 in)
1921
72.1 mm (2.8 in)
1922
89.4 mm (3.5 in)
1923
106.7 mm (4.2 in)
1924
62.0 mm (2.4 in)
1925
76.2 mm (3.0 in)
1926
117.1 mm (4.6 in)
1927
145.5 mm (5.7 in)
1928
77.7 mm (3.1 in)
1929
87.7 mm (3.5 in)
1930
76.2 mm (3.0 in)
1931
109.2 mm (4.3 in)
1932
154.7 mm (6.1 in)
1933
87.2 mm (3.4 in)
1934
72.4 mm (2.9 in)
1935
100.3 mm (3.9 in)
1936
74.7 mm (2.9 in)
1937
76.8 mm (3.0 in)
1938
119.6 mm (4.7 in)
1939
82.1 mm (3.2 in)
1940
100.1 mm (3.9 in)
1941
132.1 mm (5.2 in)
1942
87.3 mm (3.4 in)
1943
124.0 mm (4.9 in)
1944
116.4 mm (4.6 in)
1945
100.5 mm (4.0 in)
1946
65.5 mm (2.6 in)
1947
123.3 mm (4.9 in)
1948
166.2 mm (6.5 in)
1949
125.5 mm (4.9 in)
1950
125.7 mm (4.9 in)
1951
88.4 mm (3.5 in)
1952
46.7 mm (1.8 in)
1953
70.7 mm (2.8 in)
1954
61.0 mm (2.4 in)
1955
126.4 mm (5.0 in)
1956
85.8 mm (3.4 in)
1957
352.9 mm (13.9 in)
1958
83.6 mm (3.3 in)
1959
124.7 mm (4.9 in)
1960
149.6 mm (5.9 in)
1961
162.8 mm (6.4 in)
1962
89.7 mm (3.5 in)
1963
95.7 mm (3.8 in)
1964
91.7 mm (3.6 in)
1965
104.1 mm (4.1 in)
1966
91.9 mm (3.6 in)
1967
95.2 mm (3.7 in)
1968
80.8 mm (3.2 in)
1969
111.4 mm (4.4 in)
1970
102.1 mm (4.0 in)
1971
76.0 mm (3.0 in)
1972
63.3 mm (2.5 in)
1973
87.6 mm (3.4 in)
1974
154.4 mm (6.1 in)
1975
162.9 mm (6.4 in)
1976
89.7 mm (3.5 in)
1977
86.4 mm (3.4 in)
1978
79.7 mm (3.1 in)
1979
82.5 mm (3.2 in)
1980
114.3 mm (4.5 in)
1981
74.9 mm (2.9 in)
1982
176.1 mm (6.9 in)
1983
172.7 mm (6.8 in)
1984
69.3 mm (2.7 in)
1985
67.1 mm (2.6 in)
1986
355.1 mm (14.0 in)
1987
91.7 mm (3.6 in)
1988
215.2 mm (8.5 in)
1989
95.8 mm (3.8 in)
1990
72.7 mm (2.9 in)
1991
72.5 mm (2.9 in)
1992
83.0 mm (3.3 in)
1993
206.8 mm (8.1 in)
1994
146.1 mm (5.8 in)
1995
158.2 mm (6.2 in)
1996
79.7 mm (3.1 in)
1997
83.8 mm (3.3 in)
1998
164.1 mm (6.5 in)
1999
129.9 mm (5.1 in)
2000
85.7 mm (3.4 in)
2001
132.8 mm (5.2 in)
2002
104.1 mm (4.1 in)
2003
80.5 mm (3.2 in)
2004
164.8 mm (6.5 in)
2005
121.2 mm (4.8 in)
2006
94.5 mm (3.7 in)
2007
118.7 mm (4.7 in)
2008
139.4 mm (5.5 in)
2009
80.0 mm (3.1 in)
2010
100.3 mm (3.9 in)
2011
120.6 mm (4.7 in)
2012
50.3 mm (2.0 in)
Longest dry spell (CDD)
The longest dry spell of the year at Hennessey 4 ESE, 1895 to 2012. The record is 76 days in 2000, marked on the chart; the median year is 35 days.
Longest dry spell (CDD) at Hennessey 4 ESE by year
Year
Longest dry spell (CDD)
1895
22 days
1896
25 days
1897
37 days
1898
29 days
1899
37 days
1915
60 days
1916
60 days
1917
28 days
1918
31 days
1919
40 days
1920
51 days
1921
60 days
1922
56 days
1923
72 days
1924
37 days
1925
47 days
1926
58 days
1927
38 days
1928
45 days
1929
44 days
1930
30 days
1931
19 days
1932
30 days
1933
44 days
1934
31 days
1935
29 days
1936
52 days
1937
21 days
1938
39 days
1939
53 days
1940
33 days
1941
20 days
1942
26 days
1943
33 days
1944
23 days
1945
50 days
1946
25 days
1947
39 days
1948
32 days
1949
31 days
1950
58 days
1951
24 days
1952
52 days
1953
20 days
1954
37 days
1955
56 days
1956
35 days
1957
24 days
1958
34 days
1959
40 days
1960
28 days
1961
35 days
1962
30 days
1963
36 days
1964
35 days
1965
52 days
1966
42 days
1967
52 days
1968
23 days
1969
23 days
1970
34 days
1971
53 days
1972
41 days
1973
39 days
1974
36 days
1975
31 days
1976
49 days
1977
31 days
1978
34 days
1979
38 days
1980
44 days
1981
21 days
1982
29 days
1983
39 days
1984
27 days
1985
25 days
1986
38 days
1987
35 days
1988
26 days
1989
35 days
1990
36 days
1991
50 days
1992
26 days
1993
25 days
1994
26 days
1995
36 days
1996
42 days
1997
25 days
1998
30 days
1999
23 days
2000
76 days
2001
24 days
2002
29 days
2003
37 days
2004
24 days
2005
47 days
2006
38 days
2007
31 days
2008
27 days
2009
38 days
2010
35 days
2011
24 days
2012
24 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
75 years with a frost
Across 75 years with a frost, the median last spring frost at Hennessey 4 ESE falls on 9 April and the median first autumn frost on 31 October, which leaves a median of 206 days between them.
In 1974 to 2011 the median growing season was 210 days. That is 3 days more than in 1921 to 1951.
Fitted over all years, the growing season changes by +0.3 days per decade at this station.
Frost dates and growing season at Hennessey 4 ESE
Measure
Median, all years
Earliest period (1921 to 1951)
Recent period (1974 to 2011)
Recent against earliest
Fitted trend
Last spring frost
9 April
7 April
10 April
3 days later
+0.3 days per decade
First autumn frost
31 October
31 October
4 November
4 days later
+0.6 days per decade
Growing days
206 days
207 days
210 days
3 days more
+0.3 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
91 years, 1920 to 2011
A day with at least 64.2 mm (2.5 in) of rain is expected about once in 2 years. A day with at least 195.5 mm (7.7 in) of rain is expected about once in 100 years.
Rainfall return levels at Hennessey 4 ESE: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
64.2 mm (2.5 in)
5 years
88.3 mm (3.5 in)
10 years
108.0 mm (4.3 in)
25 years
138.0 mm (5.4 in)
50 years
164.6 mm (6.5 in)
100 years
195.5 mm (7.7 in)
Longer than the 91 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, 91 years of values from 1920 to 2011.
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: 248.4 mm (9.8 in) in 1957; 162.8 mm (6.4 in) in 1961; 141.0 mm (5.6 in) in 1993.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Hennessey 4 ESE, at 1983. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1983 ran 0.2 C (0.4 F) lower than in the years before (possible change).
Suspected changes in the annual mean temperature at Hennessey 4 ESE, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1983
-0.2
-0.4
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 Hennessey 4 ESE standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Hennessey 4 ESE 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.