Record envelope, standing records and threshold days for Port Washington (USC00476764), Wisconsin, United States, with 120 years of record.
Key Facts for Port Washington
Port Washington (USC00476764) is a weather station in Wisconsin, United States at 43.39 latitude and -87.86 longitude, 181 m (594 ft) above sea level.
The station reports from 1893 to 2012, 120 years of record.
1,464 records set at Port Washington still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Port Washington set a daily record low maximum temperature of 16.1 C (61.0 F) on 6 September 2011.
About the Station
Location: Wisconsin, United States, 43.39 latitude, -87.86 longitude.
Elevation: 181 m (594 ft).
Period of record: 1893 to 2012, 120 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 Port Washington. 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 Port Washington, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
15.0 C (59.0 F)
-32.2 C (-26.0 F)
n/a
n/a
Feb
17.2 C (63.0 F)
-33.9 C (-29.0 F)
n/a
n/a
Mar
27.8 C (82.0 F)
-26.1 C (-15.0 F)
n/a
n/a
Apr
33.3 C (91.9 F)
-12.2 C (10.0 F)
n/a
n/a
May
35.0 C (95.0 F)
-7.8 C (18.0 F)
n/a
n/a
Jun
38.9 C (102.0 F)
-1.7 C (28.9 F)
n/a
n/a
Jul
41.1 C (106.0 F)
4.4 C (39.9 F)
n/a
n/a
Aug
39.4 C (102.9 F)
2.2 C (36.0 F)
n/a
n/a
Sep
37.8 C (100.0 F)
-2.8 C (27.0 F)
n/a
n/a
Oct
31.7 C (89.1 F)
-11.7 C (10.9 F)
n/a
n/a
Nov
24.4 C (75.9 F)
-23.3 C (-9.9 F)
n/a
n/a
Dec
20.0 C (68.0 F)
-30.0 C (-22.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Port Washington still stand. 1899 holds the most, with 35.
Standing records at Port Washington by the year they were set
Year set
Standing records
1893
1
1894
31
1895
27
1896
29
1897
31
1898
18
1899
35
1900
24
1901
30
1902
24
1903
17
1904
25
1905
17
1906
15
1907
12
1908
12
1909
16
1910
12
1911
21
1912
23
1913
18
1914
20
1915
17
1916
18
1917
18
1918
16
1919
6
1920
21
1921
28
1922
12
1923
21
1924
18
1925
25
1926
19
1927
17
1928
12
1959
9
1960
8
1961
9
1962
22
1963
19
1964
12
1965
17
1966
12
1967
15
1968
10
1969
10
1970
7
1971
13
1972
23
1973
21
1974
15
1975
12
1976
27
1977
20
1978
10
1979
13
1980
9
1981
11
1982
17
1983
29
1984
8
1985
12
1986
17
1987
17
1988
27
1989
11
1990
11
1991
20
1992
14
1993
8
1994
15
1995
17
1996
25
1997
11
1998
19
1999
13
2000
20
2001
17
2002
21
2003
14
2004
10
2005
10
2006
15
2007
17
2008
3
2009
8
2010
4
2011
4
All-Time Record Progression
4 new records
4 all-time records were set at Port Washington between 4 August 1924 and 18 June 1996. Each dot is a new record.
When Port Washington set new all-time records
Date
Kind
Detail
1924-08-04
Record daily precipitation
Record daily precipitation 134.1 mm (5.3 in)
1994-01-18
Record low maximum temperature
Record low maximum temperature -26.7 C (-16.1 F)
1995-07-13
Record high maximum temperature
Record high maximum temperature 41.1 C (106.0 F)
1996-06-18
Record daily precipitation
Record daily precipitation 250.7 mm (9.9 in)
Wettest Day of Each Month
Jun: 250.7 mm (9.9 in)
The wettest day on record for each calendar month at Port Washington. The most was 250.7 mm (9.9 in) on 18 June 1996.
Record daily precipitation for each month at Port Washington
Month
Record daily precipitation (mm)
Date
Jan
61.0 mm (2.4 in)
24 January 1938
Feb
69.3 mm (2.7 in)
21 February 1922
Mar
47.0 mm (1.9 in)
27 March 1908
Apr
82.6 mm (3.3 in)
24 April 1955
May
79.2 mm (3.1 in)
13 May 1978
Jun
250.7 mm (9.9 in)
18 June 1996
Jul
105.4 mm (4.1 in)
12 July 1981
Aug
134.1 mm (5.3 in)
4 August 1924
Sep
88.9 mm (3.5 in)
2 September 2000
Oct
73.2 mm (2.9 in)
3 October 1954
Nov
65.8 mm (2.6 in)
4 November 2003
Dec
63.5 mm (2.5 in)
3 December 1990
Period of Record Coverage
1893 to 2012
Complete yearUnder 90 percent of days
90 years of record at Port Washington, 1893 to 2012. 13 years have data for under 90 percent of days and are left out of rankings: 1893, 1901, 1904, 1905, 1909, 1912, 1915, 1919 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 67 complete years at Port Washington, 1894 to 2011. Blue stripes are years cooler than the station's own mean of 7.5 C (45.6 F); red stripes are warmer. The coolest year was 1917, at 5.7 C (42.3 F), and the warmest was 1998, at 9.9 C (49.9 F). The strongest colour marks a difference of 2.4 C (4.3 F).
Annual mean temperature at Port Washington as warming stripes, 1894 to 2011
Year
Annual mean temperature
Difference from the station mean
1894
8.0 C
+0.46 C
1895
7.2 C
-0.31 C
1898
7.9 C
+0.32 C
1899
7.3 C
-0.30 C
1902
7.2 C
-0.34 C
1903
6.4 C
-1.16 C
1906
7.5 C
-0.07 C
1907
6.3 C
-1.30 C
1908
7.6 C
+0.07 C
1911
8.4 C
+0.82 C
1914
7.5 C
-0.03 C
1916
7.1 C
-0.50 C
1917
5.7 C
-1.82 C
1918
7.4 C
-0.19 C
1920
7.1 C
-0.48 C
1921
9.5 C
+1.95 C
1922
8.0 C
+0.45 C
1923
7.4 C
-0.13 C
1924
6.1 C
-1.42 C
1925
7.7 C
+0.19 C
1926
7.0 C
-0.58 C
1927
8.0 C
+0.42 C
1960
7.2 C
-0.36 C
1961
7.5 C
-0.01 C
1962
6.7 C
-0.84 C
1964
7.6 C
+0.05 C
1965
6.6 C
-0.91 C
1967
6.4 C
-1.15 C
1968
7.5 C
-0.06 C
1969
7.1 C
-0.41 C
1970
7.5 C
-0.05 C
1971
7.9 C
+0.36 C
1972
7.0 C
-0.57 C
1973
9.2 C
+1.60 C
1974
7.7 C
+0.10 C
1975
7.9 C
+0.36 C
1976
6.9 C
-0.65 C
1977
7.0 C
-0.60 C
1978
6.5 C
-1.10 C
1979
6.3 C
-1.30 C
1980
7.0 C
-0.53 C
1981
7.5 C
-0.03 C
1983
8.0 C
+0.49 C
1985
7.6 C
+0.03 C
1987
9.0 C
+1.45 C
1988
8.0 C
+0.46 C
1989
7.5 C
-0.02 C
1990
8.2 C
+0.68 C
1991
8.2 C
+0.65 C
1993
7.1 C
-0.45 C
1994
7.4 C
-0.16 C
1995
7.1 C
-0.49 C
1996
6.0 C
-1.57 C
1997
7.0 C
-0.51 C
1998
9.9 C
+2.38 C
1999
8.8 C
+1.26 C
2000
7.8 C
+0.24 C
2002
8.5 C
+0.92 C
2003
7.2 C
-0.38 C
2004
7.9 C
+0.38 C
2005
8.5 C
+0.96 C
2006
9.1 C
+1.50 C
2007
8.4 C
+0.80 C
2008
7.3 C
-0.28 C
2009
7.4 C
-0.17 C
2010
8.8 C
+1.23 C
2011
8.0 C
+0.44 C
The annual mean temperature here has risen by 0.06 C (0.00 to 0.11) per decade over 1894 to 2011. In Fahrenheit: 0.10 F (0.00 to 0.20) per decade. The slope is a straight line fitted to 67 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Port Washington
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.06 C (0.00 to 0.11) per decade
0.10 F (0.00 to 0.20) per decade
1894 to 2011
67
Rise
Mean daily maximum
-0.03 C (-0.10 to 0.03) per decade
-0.1 F (-0.2 to 0.1) per decade
1894 to 2011
67
Not clearly different from zero
Mean daily minimum
0.1 C (0.1 to 0.2) per decade
0.3 F (0.2 to 0.4) per decade
1894 to 2011
67
Rise
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 2012
Yearly extremes at Port Washington: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
41.1 C (106.0 F)
1995
35.0 C (95.0 F)
90
Coldest night (TNn)
-33.9 C (-29.0 F)
1899
-24.4 C (-11.9 F)
90
Wettest day (Rx1day)
250.7 mm (9.9 in)
1996
52.1 mm (2.1 in)
119
Wettest five days (Rx5day)
343.4 mm (13.5 in)
1996
75.5 mm (3.0 in)
119
Longest dry spell (CDD)
46 days
1961
22 days
118
Hottest day (TXx)
The hottest day of the year at Port Washington, 1893 to 2012. The record is 41.1 C (106.0 F) in 1995, marked on the chart; the median year is 35.0 C (95.0 F).
Hottest day (TXx) at Port Washington by year
Year
Hottest day (TXx)
1893
4.4 C (39.9 F)
1894
36.1 C (97.0 F)
1895
36.1 C (97.0 F)
1896
37.8 C (100.0 F)
1897
35.0 C (95.0 F)
1898
35.0 C (95.0 F)
1899
35.0 C (95.0 F)
1900
36.1 C (97.0 F)
1901
38.9 C (102.0 F)
1902
33.3 C (91.9 F)
1903
31.7 C (89.1 F)
1904
33.9 C (93.0 F)
1905
33.9 C (93.0 F)
1906
33.3 C (91.9 F)
1907
32.2 C (90.0 F)
1908
35.0 C (95.0 F)
1909
33.3 C (91.9 F)
1910
35.0 C (95.0 F)
1911
39.4 C (102.9 F)
1912
35.6 C (96.1 F)
1913
36.1 C (97.0 F)
1914
33.3 C (91.9 F)
1915
30.6 C (87.1 F)
1916
35.6 C (96.1 F)
1917
36.1 C (97.0 F)
1918
38.3 C (100.9 F)
1919
37.2 C (99.0 F)
1920
33.9 C (93.0 F)
1921
36.7 C (98.1 F)
1922
36.1 C (97.0 F)
1923
33.9 C (93.0 F)
1924
32.2 C (90.0 F)
1925
35.6 C (96.1 F)
1926
38.3 C (100.9 F)
1927
35.6 C (96.1 F)
1928
32.2 C (90.0 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
n/a
1949
n/a
1950
n/a
1951
n/a
1952
n/a
1953
n/a
1954
n/a
1955
n/a
1956
n/a
1957
n/a
1958
n/a
1959
35.0 C (95.0 F)
1960
32.8 C (91.0 F)
1961
34.4 C (93.9 F)
1962
31.7 C (89.1 F)
1963
33.3 C (91.9 F)
1964
36.1 C (97.0 F)
1965
35.0 C (95.0 F)
1966
36.7 C (98.1 F)
1967
33.3 C (91.9 F)
1968
34.4 C (93.9 F)
1969
34.4 C (93.9 F)
1970
35.6 C (96.1 F)
1971
35.6 C (96.1 F)
1972
34.4 C (93.9 F)
1973
36.7 C (98.1 F)
1974
35.6 C (96.1 F)
1975
33.3 C (91.9 F)
1976
37.8 C (100.0 F)
1977
36.1 C (97.0 F)
1978
34.4 C (93.9 F)
1979
33.9 C (93.0 F)
1980
35.0 C (95.0 F)
1981
33.3 C (91.9 F)
1982
37.8 C (100.0 F)
1983
36.7 C (98.1 F)
1984
35.0 C (95.0 F)
1985
34.4 C (93.9 F)
1986
32.2 C (90.0 F)
1987
37.8 C (100.0 F)
1988
39.4 C (102.9 F)
1989
36.7 C (98.1 F)
1990
36.1 C (97.0 F)
1991
35.0 C (95.0 F)
1992
32.2 C (90.0 F)
1993
33.3 C (91.9 F)
1994
33.3 C (91.9 F)
1995
41.1 C (106.0 F)
1996
36.1 C (97.0 F)
1997
35.0 C (95.0 F)
1998
33.9 C (93.0 F)
1999
36.7 C (98.1 F)
2000
33.3 C (91.9 F)
2001
36.1 C (97.0 F)
2002
37.2 C (99.0 F)
2003
35.0 C (95.0 F)
2004
32.2 C (90.0 F)
2005
36.7 C (98.1 F)
2006
37.2 C (99.0 F)
2007
36.1 C (97.0 F)
2008
32.2 C (90.0 F)
2009
32.2 C (90.0 F)
2010
33.3 C (91.9 F)
2011
36.7 C (98.1 F)
2012
5.0 C (41.0 F)
Coldest night (TNn)
The coldest night of the year at Port Washington, 1893 to 2012. The record is -33.9 C (-29.0 F) in 1899, marked on the chart; the median year is -24.4 C (-11.9 F).
Coldest night (TNn) at Port Washington by year
Year
Coldest night (TNn)
1893
-28.3 C (-18.9 F)
1894
-26.1 C (-15.0 F)
1895
-30.0 C (-22.0 F)
1896
-26.1 C (-15.0 F)
1897
-32.2 C (-26.0 F)
1898
-23.9 C (-11.0 F)
1899
-33.9 C (-29.0 F)
1900
-25.6 C (-14.1 F)
1901
-22.8 C (-9.0 F)
1902
-25.6 C (-14.1 F)
1903
-30.0 C (-22.0 F)
1904
-27.8 C (-18.0 F)
1905
-27.2 C (-17.0 F)
1906
-17.8 C (0.0 F)
1907
-23.9 C (-11.0 F)
1908
-23.3 C (-9.9 F)
1909
-25.0 C (-13.0 F)
1910
-24.4 C (-11.9 F)
1911
-22.8 C (-9.0 F)
1912
-29.4 C (-20.9 F)
1913
-23.3 C (-9.9 F)
1914
-27.2 C (-17.0 F)
1915
-17.2 C (1.0 F)
1916
-25.6 C (-14.1 F)
1917
-27.2 C (-17.0 F)
1918
-30.0 C (-22.0 F)
1919
-26.7 C (-16.1 F)
1920
-25.6 C (-14.1 F)
1921
-19.4 C (-2.9 F)
1922
-23.9 C (-11.0 F)
1923
-24.4 C (-11.9 F)
1924
-30.0 C (-22.0 F)
1925
-23.9 C (-11.0 F)
1926
-26.1 C (-15.0 F)
1927
-23.9 C (-11.0 F)
1928
-22.2 C (-8.0 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
n/a
1949
n/a
1950
n/a
1951
n/a
1952
n/a
1953
n/a
1954
n/a
1955
n/a
1956
n/a
1957
n/a
1958
n/a
1959
-16.7 C (1.9 F)
1960
-22.2 C (-8.0 F)
1961
-23.3 C (-9.9 F)
1962
-26.7 C (-16.1 F)
1963
-32.2 C (-26.0 F)
1964
-19.4 C (-2.9 F)
1965
-27.8 C (-18.0 F)
1966
-29.4 C (-20.9 F)
1967
-26.1 C (-15.0 F)
1968
-25.6 C (-14.1 F)
1969
-23.3 C (-9.9 F)
1970
-24.4 C (-11.9 F)
1971
-26.7 C (-16.1 F)
1972
-30.0 C (-22.0 F)
1973
-22.2 C (-8.0 F)
1974
-24.4 C (-11.9 F)
1975
-24.4 C (-11.9 F)
1976
-25.6 C (-14.1 F)
1977
-28.3 C (-18.9 F)
1978
-26.1 C (-15.0 F)
1979
-27.2 C (-17.0 F)
1980
-21.1 C (-6.0 F)
1981
-22.8 C (-9.0 F)
1982
-31.7 C (-25.1 F)
1983
-28.9 C (-20.0 F)
1984
-27.8 C (-18.0 F)
1985
-30.0 C (-22.0 F)
1986
-22.2 C (-8.0 F)
1987
-24.4 C (-11.9 F)
1988
-23.9 C (-11.0 F)
1989
-26.7 C (-16.1 F)
1990
-22.8 C (-9.0 F)
1991
-22.2 C (-8.0 F)
1992
-21.7 C (-7.1 F)
1993
-21.1 C (-6.0 F)
1994
-31.7 C (-25.1 F)
1995
-23.3 C (-9.9 F)
1996
-33.9 C (-29.0 F)
1997
-23.3 C (-9.9 F)
1998
-21.1 C (-6.0 F)
1999
-23.3 C (-9.9 F)
2000
-21.1 C (-6.0 F)
2001
-17.8 C (0.0 F)
2002
-19.4 C (-2.9 F)
2003
-23.9 C (-11.0 F)
2004
-23.3 C (-9.9 F)
2005
-18.9 C (-2.0 F)
2006
-25.6 C (-14.1 F)
2007
-25.0 C (-13.0 F)
2008
-23.3 C (-9.9 F)
2009
-25.0 C (-13.0 F)
2010
-17.2 C (1.0 F)
2011
-22.2 C (-8.0 F)
2012
-7.8 C (18.0 F)
Wettest day (Rx1day)
The wettest day of the year at Port Washington, 1893 to 2012. The record is 250.7 mm (9.9 in) in 1996, marked on the chart; the median year is 52.1 mm (2.1 in).
Wettest day (Rx1day) at Port Washington by year
Year
Wettest day (Rx1day)
1893
2.5 mm (0.10 in)
1894
43.2 mm (1.7 in)
1895
47.2 mm (1.9 in)
1896
61.0 mm (2.4 in)
1897
44.5 mm (1.8 in)
1898
48.0 mm (1.9 in)
1899
40.6 mm (1.6 in)
1900
61.0 mm (2.4 in)
1901
43.2 mm (1.7 in)
1902
52.1 mm (2.1 in)
1903
61.0 mm (2.4 in)
1904
53.3 mm (2.1 in)
1905
73.7 mm (2.9 in)
1906
66.0 mm (2.6 in)
1907
101.9 mm (4.0 in)
1908
47.0 mm (1.9 in)
1909
40.6 mm (1.6 in)
1910
30.5 mm (1.2 in)
1911
52.1 mm (2.1 in)
1912
41.4 mm (1.6 in)
1913
82.6 mm (3.3 in)
1914
69.6 mm (2.7 in)
1915
48.3 mm (1.9 in)
1916
58.7 mm (2.3 in)
1917
42.2 mm (1.7 in)
1918
26.4 mm (1.0 in)
1919
35.6 mm (1.4 in)
1920
50.8 mm (2.0 in)
1921
52.1 mm (2.1 in)
1922
69.3 mm (2.7 in)
1923
51.3 mm (2.0 in)
1924
134.1 mm (5.3 in)
1925
37.6 mm (1.5 in)
1926
44.2 mm (1.7 in)
1927
39.4 mm (1.6 in)
1928
87.6 mm (3.4 in)
1930
34.5 mm (1.4 in)
1931
61.2 mm (2.4 in)
1932
27.7 mm (1.1 in)
1933
40.1 mm (1.6 in)
1934
44.5 mm (1.8 in)
1935
44.5 mm (1.8 in)
1936
47.0 mm (1.9 in)
1937
47.5 mm (1.9 in)
1938
61.0 mm (2.4 in)
1939
43.7 mm (1.7 in)
1940
68.1 mm (2.7 in)
1941
85.9 mm (3.4 in)
1942
53.3 mm (2.1 in)
1943
37.8 mm (1.5 in)
1944
34.8 mm (1.4 in)
1945
57.4 mm (2.3 in)
1946
33.5 mm (1.3 in)
1947
57.4 mm (2.3 in)
1948
31.8 mm (1.3 in)
1949
51.8 mm (2.0 in)
1950
85.9 mm (3.4 in)
1951
37.6 mm (1.5 in)
1952
66.5 mm (2.6 in)
1953
81.3 mm (3.2 in)
1954
73.2 mm (2.9 in)
1955
82.6 mm (3.3 in)
1956
57.4 mm (2.3 in)
1957
36.8 mm (1.4 in)
1958
46.7 mm (1.8 in)
1959
58.9 mm (2.3 in)
1960
66.5 mm (2.6 in)
1961
83.6 mm (3.3 in)
1962
55.4 mm (2.2 in)
1963
31.0 mm (1.2 in)
1964
41.4 mm (1.6 in)
1965
85.3 mm (3.4 in)
1966
47.5 mm (1.9 in)
1967
49.8 mm (2.0 in)
1968
30.5 mm (1.2 in)
1969
45.5 mm (1.8 in)
1970
36.8 mm (1.4 in)
1971
57.4 mm (2.3 in)
1972
42.7 mm (1.7 in)
1973
45.7 mm (1.8 in)
1974
61.0 mm (2.4 in)
1975
63.5 mm (2.5 in)
1976
63.0 mm (2.5 in)
1977
56.4 mm (2.2 in)
1978
79.2 mm (3.1 in)
1979
51.8 mm (2.0 in)
1980
52.6 mm (2.1 in)
1981
105.4 mm (4.1 in)
1982
50.8 mm (2.0 in)
1983
40.6 mm (1.6 in)
1984
50.3 mm (2.0 in)
1985
60.7 mm (2.4 in)
1986
88.1 mm (3.5 in)
1987
63.5 mm (2.5 in)
1988
82.6 mm (3.3 in)
1989
74.9 mm (2.9 in)
1990
64.8 mm (2.6 in)
1991
72.4 mm (2.9 in)
1992
43.9 mm (1.7 in)
1993
69.6 mm (2.7 in)
1994
61.0 mm (2.4 in)
1995
53.3 mm (2.1 in)
1996
250.7 mm (9.9 in)
1997
52.1 mm (2.1 in)
1998
48.3 mm (1.9 in)
1999
47.2 mm (1.9 in)
2000
88.9 mm (3.5 in)
2001
53.3 mm (2.1 in)
2002
60.5 mm (2.4 in)
2003
65.8 mm (2.6 in)
2004
50.3 mm (2.0 in)
2005
49.3 mm (1.9 in)
2006
46.0 mm (1.8 in)
2007
66.3 mm (2.6 in)
2008
78.7 mm (3.1 in)
2009
39.9 mm (1.6 in)
2010
76.2 mm (3.0 in)
2011
50.3 mm (2.0 in)
2012
5.1 mm (0.20 in)
Wettest five days (Rx5day)
The wettest five days of the year at Port Washington, 1893 to 2012. The record is 343.4 mm (13.5 in) in 1996, marked on the chart; the median year is 75.5 mm (3.0 in).
Wettest five days (Rx5day) at Port Washington by year
Year
Wettest five days (Rx5day)
1893
5.0 mm (0.20 in)
1894
42.7 mm (1.7 in)
1895
31.8 mm (1.3 in)
1896
88.7 mm (3.5 in)
1897
49.6 mm (2.0 in)
1898
63.4 mm (2.5 in)
1899
58.3 mm (2.3 in)
1900
76.2 mm (3.0 in)
1901
65.3 mm (2.6 in)
1902
65.2 mm (2.6 in)
1903
74.7 mm (2.9 in)
1904
82.5 mm (3.2 in)
1905
105.4 mm (4.1 in)
1906
73.7 mm (2.9 in)
1907
80.0 mm (3.1 in)
1908
58.2 mm (2.3 in)
1909
69.4 mm (2.7 in)
1910
33.6 mm (1.3 in)
1911
83.9 mm (3.3 in)
1912
87.2 mm (3.4 in)
1913
95.5 mm (3.8 in)
1914
114.7 mm (4.5 in)
1915
87.4 mm (3.4 in)
1916
58.7 mm (2.3 in)
1917
48.8 mm (1.9 in)
1918
48.0 mm (1.9 in)
1919
67.4 mm (2.7 in)
1920
148.6 mm (5.9 in)
1921
75.7 mm (3.0 in)
1922
83.8 mm (3.3 in)
1923
74.7 mm (2.9 in)
1924
167.7 mm (6.6 in)
1925
65.3 mm (2.6 in)
1926
61.9 mm (2.4 in)
1927
89.9 mm (3.5 in)
1928
111.2 mm (4.4 in)
1930
43.7 mm (1.7 in)
1931
61.7 mm (2.4 in)
1932
43.7 mm (1.7 in)
1933
99.7 mm (3.9 in)
1934
72.3 mm (2.8 in)
1935
65.1 mm (2.6 in)
1936
54.9 mm (2.2 in)
1937
97.8 mm (3.9 in)
1938
96.4 mm (3.8 in)
1939
51.2 mm (2.0 in)
1940
107.7 mm (4.2 in)
1941
109.7 mm (4.3 in)
1942
73.1 mm (2.9 in)
1943
72.6 mm (2.9 in)
1944
48.0 mm (1.9 in)
1945
62.0 mm (2.4 in)
1946
50.0 mm (2.0 in)
1947
63.8 mm (2.5 in)
1948
60.8 mm (2.4 in)
1949
70.1 mm (2.8 in)
1950
124.0 mm (4.9 in)
1951
86.9 mm (3.4 in)
1952
118.8 mm (4.7 in)
1953
95.5 mm (3.8 in)
1954
102.1 mm (4.0 in)
1955
89.5 mm (3.5 in)
1956
86.8 mm (3.4 in)
1957
51.8 mm (2.0 in)
1958
61.5 mm (2.4 in)
1959
72.6 mm (2.9 in)
1960
104.3 mm (4.1 in)
1961
128.6 mm (5.1 in)
1962
99.3 mm (3.9 in)
1963
46.0 mm (1.8 in)
1964
71.8 mm (2.8 in)
1965
112.7 mm (4.4 in)
1966
74.7 mm (2.9 in)
1967
86.6 mm (3.4 in)
1968
66.6 mm (2.6 in)
1969
89.4 mm (3.5 in)
1970
69.3 mm (2.7 in)
1971
57.4 mm (2.3 in)
1972
81.4 mm (3.2 in)
1973
68.9 mm (2.7 in)
1974
68.6 mm (2.7 in)
1975
97.5 mm (3.8 in)
1976
83.6 mm (3.3 in)
1977
75.5 mm (3.0 in)
1978
96.2 mm (3.8 in)
1979
65.5 mm (2.6 in)
1980
105.4 mm (4.1 in)
1981
113.5 mm (4.5 in)
1982
74.7 mm (2.9 in)
1983
59.7 mm (2.4 in)
1984
87.6 mm (3.4 in)
1985
82.3 mm (3.2 in)
1986
179.3 mm (7.1 in)
1987
69.4 mm (2.7 in)
1988
104.2 mm (4.1 in)
1989
117.3 mm (4.6 in)
1990
105.2 mm (4.1 in)
1991
77.5 mm (3.1 in)
1992
62.0 mm (2.4 in)
1993
84.1 mm (3.3 in)
1994
65.0 mm (2.6 in)
1995
73.9 mm (2.9 in)
1996
343.4 mm (13.5 in)
1997
66.5 mm (2.6 in)
1998
98.6 mm (3.9 in)
1999
104.6 mm (4.1 in)
2000
106.2 mm (4.2 in)
2001
67.9 mm (2.7 in)
2002
81.8 mm (3.2 in)
2003
99.6 mm (3.9 in)
2004
108.7 mm (4.3 in)
2005
64.6 mm (2.5 in)
2006
73.4 mm (2.9 in)
2007
147.5 mm (5.8 in)
2008
163.4 mm (6.4 in)
2009
75.7 mm (3.0 in)
2010
91.9 mm (3.6 in)
2011
72.0 mm (2.8 in)
2012
16.1 mm (0.6 in)
Longest dry spell (CDD)
The longest dry spell of the year at Port Washington, 1893 to 2012. The record is 46 days in 1961, marked on the chart; the median year is 22 days.
Longest dry spell (CDD) at Port Washington by year
Year
Longest dry spell (CDD)
1893
13 days
1894
33 days
1895
26 days
1896
25 days
1897
23 days
1898
17 days
1899
42 days
1900
19 days
1901
19 days
1902
23 days
1903
16 days
1904
21 days
1905
22 days
1906
24 days
1907
15 days
1908
36 days
1909
25 days
1910
29 days
1911
22 days
1912
30 days
1913
28 days
1914
23 days
1915
30 days
1916
15 days
1917
22 days
1918
19 days
1919
23 days
1920
21 days
1921
19 days
1922
19 days
1923
16 days
1924
21 days
1925
22 days
1926
20 days
1927
16 days
1928
15 days
1930
23 days
1931
25 days
1932
20 days
1933
24 days
1934
26 days
1935
21 days
1936
21 days
1937
16 days
1938
17 days
1939
29 days
1940
19 days
1941
22 days
1942
28 days
1943
23 days
1944
27 days
1945
19 days
1946
12 days
1947
27 days
1948
22 days
1949
16 days
1950
25 days
1951
15 days
1952
21 days
1953
19 days
1954
19 days
1955
28 days
1956
15 days
1957
24 days
1958
31 days
1959
18 days
1960
26 days
1961
46 days
1962
18 days
1963
15 days
1964
24 days
1965
19 days
1966
26 days
1967
21 days
1968
18 days
1969
35 days
1970
32 days
1971
23 days
1972
26 days
1973
18 days
1974
12 days
1975
18 days
1976
25 days
1977
18 days
1978
23 days
1979
32 days
1980
17 days
1981
29 days
1982
18 days
1983
17 days
1984
20 days
1985
14 days
1986
28 days
1987
29 days
1988
19 days
1989
21 days
1990
16 days
1991
16 days
1992
20 days
1993
24 days
1994
22 days
1995
33 days
1996
24 days
1997
16 days
1998
22 days
1999
24 days
2000
15 days
2001
26 days
2002
14 days
2003
28 days
2004
33 days
2005
16 days
2006
19 days
2007
32 days
2008
20 days
2009
22 days
2010
18 days
2011
16 days
2012
n/a
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
67 years with a frost
Across 67 years with a frost, the median last spring frost at Port Washington falls on 30 April and the median first autumn frost on 14 October, which leaves a median of 166 days between them.
In 1977 to 2011 the median growing season was 180 days. That is 27 days more than in 1894 to 1969.
Fitted over all years, the growing season changes by +3.2 days per decade at this station.
Frost dates and growing season at Port Washington
Measure
Median, all years
Earliest period (1894 to 1969)
Recent period (1977 to 2011)
Recent against earliest
Fitted trend
Last spring frost
30 April
7 May
26 April
11 days earlier
-1.9 days per decade
First autumn frost
14 October
9 October
17 October
8 days later
+1.3 days per decade
Growing days
166 days
153 days
180 days
27 days more
+3.2 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
95 years, 1896 to 2011
A day with at least 53.6 mm (2.1 in) of rain is expected about once in 2 years. A day with at least 146.8 mm (5.8 in) of rain is expected about once in 100 years.
Rainfall return levels at Port Washington: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
53.6 mm (2.1 in)
5 years
72.2 mm (2.8 in)
10 years
86.6 mm (3.4 in)
25 years
107.9 mm (4.2 in)
50 years
126.2 mm (5.0 in)
100 years
146.8 mm (5.8 in)
Longer than the 95 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, 95 years of values from 1896 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: 250.7 mm (9.9 in) in 1996; 134.1 mm (5.3 in) in 1924; 105.4 mm (4.1 in) in 1981.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Port Washington standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Port Washington 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.