Record envelope, standing records and threshold days for Hamburg (USC00363632), Pennsylvania, United States, with 128 years of record.
Key Facts for Hamburg
Hamburg (USC00363632) is a weather station in Pennsylvania, United States at 40.55 latitude and -75.99 longitude, 113 m (369 ft) above sea level.
The station reports from 1894 to 2021, 128 years of record.
1,464 records set at Hamburg still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Hamburg set a daily record high minimum temperature of 20.6 C (69.1 F) on 23 September 2021.
About the Station
Location: Pennsylvania, United States, 40.55 latitude, -75.99 longitude.
Elevation: 113 m (369 ft).
Period of record: 1894 to 2021, 128 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 Hamburg. 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 Hamburg, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
20.6 C (69.1 F)
-28.9 C (-20.0 F)
n/a
n/a
Feb
25.6 C (78.1 F)
-25.0 C (-13.0 F)
n/a
n/a
Mar
31.1 C (88.0 F)
-18.3 C (-0.9 F)
n/a
n/a
Apr
35.0 C (95.0 F)
-12.2 C (10.0 F)
n/a
n/a
May
36.1 C (97.0 F)
-2.2 C (28.0 F)
n/a
n/a
Jun
38.9 C (102.0 F)
1.7 C (35.1 F)
n/a
n/a
Jul
41.7 C (107.1 F)
2.8 C (37.0 F)
n/a
n/a
Aug
39.4 C (102.9 F)
3.9 C (39.0 F)
n/a
n/a
Sep
37.8 C (100.0 F)
-1.1 C (30.0 F)
n/a
n/a
Oct
31.7 C (89.1 F)
-8.3 C (17.1 F)
n/a
n/a
Nov
26.7 C (80.1 F)
-14.4 C (6.1 F)
n/a
n/a
Dec
23.9 C (75.0 F)
-23.3 C (-9.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Hamburg still stand. 1916 holds the most, with 38.
Standing records at Hamburg by the year they were set
Year set
Standing records
1894
32
1895
37
1896
33
1897
23
1898
37
1899
22
1902
3
1903
25
1904
16
1905
8
1906
19
1907
13
1908
26
1909
10
1910
8
1911
9
1912
9
1913
17
1914
31
1915
4
1916
38
1917
27
1918
26
1919
17
1920
25
1921
10
1922
12
1923
31
1924
16
1925
31
1926
22
1927
23
1928
24
1929
35
1930
38
1931
13
1932
21
1933
14
1934
26
1935
12
1936
31
1937
11
1938
19
1979
11
1980
14
1981
12
1982
18
1983
13
1984
15
1985
11
1986
9
1987
6
1988
12
1989
12
1990
19
1991
18
1992
7
1993
12
1994
9
1995
3
1996
10
1997
5
1998
20
1999
11
2000
11
2001
10
2002
19
2003
8
2004
11
2005
7
2006
14
2007
12
2008
5
2009
12
2010
15
2011
19
2012
14
2013
12
2014
22
2015
32
2016
22
2017
15
2018
21
2019
13
2020
13
2021
6
All-Time Record Progression
3 new records
3 all-time records were set at Hamburg between 28 July 1938 and 1 October 2010. Each dot is a new record.
When Hamburg set new all-time records
Date
Kind
Detail
1938-07-28
Record high minimum temperature
Record high minimum temperature 27.8 C (82.0 F)
1938-08-15
Record high minimum temperature
Record high minimum temperature 28.3 C (82.9 F)
2010-10-01
Record daily precipitation
Record daily precipitation 127.8 mm (5.0 in)
Wettest Day of Each Month
Oct: 127.8 mm (5.0 in)
The wettest day on record for each calendar month at Hamburg. The most was 127.8 mm (5.0 in) on 1 October 2010.
Record daily precipitation for each month at Hamburg
Month
Record daily precipitation (mm)
Date
Jan
66.0 mm (2.6 in)
13 January 1915
Feb
80.5 mm (3.2 in)
21 February 1902
Mar
73.2 mm (2.9 in)
22 March 2000
Apr
98.3 mm (3.9 in)
15 April 1983
May
106.9 mm (4.2 in)
6 May 1989
Jun
93.7 mm (3.7 in)
25 June 1984
Jul
101.6 mm (4.0 in)
14 July 1911
Aug
124.5 mm (4.9 in)
18 August 1901
Sep
106.7 mm (4.2 in)
19 September 2012
Oct
127.8 mm (5.0 in)
1 October 2010
Nov
103.4 mm (4.1 in)
17 November 1935
Dec
96.0 mm (3.8 in)
31 December 1895
Period of Record Coverage
1894 to 2021
Complete yearUnder 90 percent of days
86 years of record at Hamburg, 1894 to 2021. 13 years have data for under 90 percent of days and are left out of rankings: 1895, 1902, 1914, 1915, 1920, 1921, 1938, 1979 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 58 complete years at Hamburg, 1894 to 2020. Blue stripes are years cooler than the station's own mean of 10.9 C (51.5 F); red stripes are warmer. The coolest year was 1924, at 9.3 C (48.7 F), and the warmest was 1998, at 12.4 C (54.4 F). The strongest colour marks a difference of 1.6 C (2.9 F).
Annual mean temperature at Hamburg as warming stripes, 1894 to 2020
Year
Annual mean temperature
Difference from the station mean
1894
11.4 C
+0.57 C
1896
11.4 C
+0.57 C
1897
11.7 C
+0.81 C
1898
12.2 C
+1.35 C
1903
10.5 C
-0.31 C
1904
9.6 C
-1.23 C
1905
10.7 C
-0.12 C
1906
11.5 C
+0.64 C
1907
9.7 C
-1.19 C
1908
10.6 C
-0.27 C
1910
10.8 C
-0.06 C
1911
11.3 C
+0.49 C
1912
10.8 C
-0.08 C
1913
11.6 C
+0.75 C
1916
10.8 C
-0.06 C
1917
9.5 C
-1.40 C
1918
10.1 C
-0.75 C
1919
10.5 C
-0.40 C
1923
10.4 C
-0.47 C
1924
9.3 C
-1.58 C
1925
9.6 C
-1.24 C
1927
10.5 C
-0.39 C
1928
10.4 C
-0.45 C
1929
10.5 C
-0.34 C
1930
10.8 C
-0.10 C
1932
10.7 C
-0.14 C
1933
10.7 C
-0.17 C
1936
11.4 C
+0.53 C
1937
11.0 C
+0.13 C
1980
10.4 C
-0.48 C
1981
9.8 C
-1.01 C
1983
9.3 C
-1.51 C
1984
10.6 C
-0.23 C
1986
10.6 C
-0.24 C
1987
11.1 C
+0.26 C
1988
10.5 C
-0.37 C
1990
11.9 C
+1.04 C
1993
10.5 C
-0.37 C
1994
10.4 C
-0.41 C
1996
10.3 C
-0.60 C
1997
10.5 C
-0.39 C
1998
12.4 C
+1.59 C
2000
10.6 C
-0.26 C
2003
10.3 C
-0.56 C
2004
11.2 C
+0.31 C
2006
12.2 C
+1.32 C
2008
11.1 C
+0.21 C
2010
11.9 C
+1.01 C
2011
11.7 C
+0.84 C
2012
12.3 C
+1.48 C
2013
10.9 C
+0.05 C
2014
10.0 C
-0.88 C
2015
11.1 C
+0.22 C
2016
11.9 C
+1.04 C
2017
11.6 C
+0.72 C
2018
11.2 C
+0.39 C
2019
11.5 C
+0.61 C
2020
12.1 C
+1.26 C
The fitted trend in annual mean temperature here over 1894 to 2020 is 0.04 C (0.00 to 0.09) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.08 F (0.00 to 0.16) per decade. The slope is a straight line fitted to 58 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Hamburg
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.04 C (0.00 to 0.09) per decade
0.08 F (0.00 to 0.16) per decade
1894 to 2020
58
Not clearly different from zero
Mean daily maximum
-0.01 C (-0.06 to 0.04) per decade
-0.02 F (-0.10 to 0.06) per decade
1894 to 2020
58
Not clearly different from zero
Mean daily minimum
0.10 C (0.04 to 0.16) per decade
0.2 F (0.1 to 0.3) per decade
1894 to 2020
58
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
1894 to 2021
Yearly extremes at Hamburg: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
41.7 C (107.1 F)
1898
36.1 C (97.0 F)
86
Coldest night (TNn)
-28.9 C (-20.0 F)
1912
-18.3 C (-0.9 F)
86
Wettest day (Rx1day)
127.8 mm (5.0 in)
2010
66.0 mm (2.6 in)
88
Wettest five days (Rx5day)
286.6 mm (11.3 in)
2006
102.9 mm (4.1 in)
88
Longest dry spell (CDD)
44 days
1924
18 days
88
Hottest day (TXx)
The hottest day of the year at Hamburg, 1894 to 2021. The record is 41.7 C (107.1 F) in 1898, marked on the chart; the median year is 36.1 C (97.0 F).
Hottest day (TXx) at Hamburg by year
Year
Hottest day (TXx)
1894
38.9 C (102.0 F)
1895
37.8 C (100.0 F)
1896
37.2 C (99.0 F)
1897
38.3 C (100.9 F)
1898
41.7 C (107.1 F)
1899
36.7 C (98.1 F)
1900
n/a
1901
n/a
1902
32.8 C (91.0 F)
1903
36.7 C (98.1 F)
1904
36.7 C (98.1 F)
1905
35.6 C (96.1 F)
1906
36.1 C (97.0 F)
1907
35.0 C (95.0 F)
1908
37.8 C (100.0 F)
1909
35.0 C (95.0 F)
1910
36.1 C (97.0 F)
1911
38.3 C (100.9 F)
1912
36.7 C (98.1 F)
1913
37.2 C (99.0 F)
1914
35.6 C (96.1 F)
1915
37.2 C (99.0 F)
1916
38.9 C (102.0 F)
1917
37.2 C (99.0 F)
1918
39.4 C (102.9 F)
1919
36.7 C (98.1 F)
1920
33.9 C (93.0 F)
1921
35.0 C (95.0 F)
1922
33.9 C (93.0 F)
1923
37.8 C (100.0 F)
1924
36.1 C (97.0 F)
1925
36.7 C (98.1 F)
1926
37.2 C (99.0 F)
1927
35.0 C (95.0 F)
1928
34.4 C (93.9 F)
1929
35.6 C (96.1 F)
1930
37.8 C (100.0 F)
1931
38.3 C (100.9 F)
1932
35.6 C (96.1 F)
1933
36.7 C (98.1 F)
1934
37.8 C (100.0 F)
1935
36.7 C (98.1 F)
1936
40.0 C (104.0 F)
1937
36.7 C (98.1 F)
1938
35.0 C (95.0 F)
1979
30.0 C (86.0 F)
1980
36.7 C (98.1 F)
1981
34.4 C (93.9 F)
1982
32.8 C (91.0 F)
1983
35.0 C (95.0 F)
1984
35.0 C (95.0 F)
1985
34.4 C (93.9 F)
1986
35.0 C (95.0 F)
1987
36.7 C (98.1 F)
1988
39.4 C (102.9 F)
1989
33.9 C (93.0 F)
1990
36.7 C (98.1 F)
1991
36.7 C (98.1 F)
1992
33.9 C (93.0 F)
1993
34.4 C (93.9 F)
1994
35.6 C (96.1 F)
1995
36.7 C (98.1 F)
1996
35.6 C (96.1 F)
1997
35.6 C (96.1 F)
1998
32.8 C (91.0 F)
1999
38.3 C (100.9 F)
2000
33.9 C (93.0 F)
2001
36.7 C (98.1 F)
2002
37.8 C (100.0 F)
2003
33.9 C (93.0 F)
2004
33.3 C (91.9 F)
2005
35.6 C (96.1 F)
2006
36.7 C (98.1 F)
2007
35.6 C (96.1 F)
2008
35.6 C (96.1 F)
2009
33.9 C (93.0 F)
2010
38.3 C (100.9 F)
2011
40.0 C (104.0 F)
2012
37.8 C (100.0 F)
2013
35.6 C (96.1 F)
2014
32.8 C (91.0 F)
2015
33.9 C (93.0 F)
2016
36.1 C (97.0 F)
2017
34.4 C (93.9 F)
2018
35.0 C (95.0 F)
2019
35.6 C (96.1 F)
2020
35.0 C (95.0 F)
2021
35.6 C (96.1 F)
Coldest night (TNn)
The coldest night of the year at Hamburg, 1894 to 2021. The record is -28.9 C (-20.0 F) in 1912, marked on the chart; the median year is -18.3 C (-0.9 F).
Coldest night (TNn) at Hamburg by year
Year
Coldest night (TNn)
1894
-19.4 C (-2.9 F)
1895
-17.8 C (0.0 F)
1896
-18.3 C (-0.9 F)
1897
-16.7 C (1.9 F)
1898
-17.8 C (0.0 F)
1899
-25.0 C (-13.0 F)
1900
n/a
1901
n/a
1902
-16.7 C (1.9 F)
1903
-21.7 C (-7.1 F)
1904
-23.9 C (-11.0 F)
1905
-18.9 C (-2.0 F)
1906
-17.8 C (0.0 F)
1907
-19.4 C (-2.9 F)
1908
-20.0 C (-4.0 F)
1909
-20.0 C (-4.0 F)
1910
-20.0 C (-4.0 F)
1911
-12.8 C (9.0 F)
1912
-28.9 C (-20.0 F)
1913
-16.1 C (3.0 F)
1914
-22.2 C (-8.0 F)
1915
-15.6 C (3.9 F)
1916
-20.0 C (-4.0 F)
1917
-22.2 C (-8.0 F)
1918
-23.3 C (-9.9 F)
1919
-23.3 C (-9.9 F)
1920
-19.4 C (-2.9 F)
1921
-12.8 C (9.0 F)
1922
-18.9 C (-2.0 F)
1923
-17.2 C (1.0 F)
1924
-17.8 C (0.0 F)
1925
-22.2 C (-8.0 F)
1926
-18.3 C (-0.9 F)
1927
-17.8 C (0.0 F)
1928
-22.2 C (-8.0 F)
1929
-17.8 C (0.0 F)
1930
-22.2 C (-8.0 F)
1931
-13.9 C (7.0 F)
1932
-17.8 C (0.0 F)
1933
-19.4 C (-2.9 F)
1934
-25.0 C (-13.0 F)
1935
-22.8 C (-9.0 F)
1936
-20.6 C (-5.1 F)
1937
-12.8 C (9.0 F)
1938
-18.9 C (-2.0 F)
1979
-11.7 C (10.9 F)
1980
-21.1 C (-6.0 F)
1981
-23.3 C (-9.9 F)
1982
-23.3 C (-9.9 F)
1983
-20.6 C (-5.1 F)
1984
-23.3 C (-9.9 F)
1985
-23.3 C (-9.9 F)
1986
-14.4 C (6.1 F)
1987
-20.6 C (-5.1 F)
1988
-19.4 C (-2.9 F)
1989
-16.7 C (1.9 F)
1990
-13.9 C (7.0 F)
1991
-13.3 C (8.1 F)
1992
-14.4 C (6.1 F)
1993
-15.6 C (3.9 F)
1994
-28.3 C (-18.9 F)
1995
-16.1 C (3.0 F)
1996
-20.0 C (-4.0 F)
1997
-18.3 C (-0.9 F)
1998
-12.2 C (10.0 F)
1999
-13.9 C (7.0 F)
2000
-15.6 C (3.9 F)
2001
-14.4 C (6.1 F)
2002
-15.6 C (3.9 F)
2003
-17.2 C (1.0 F)
2004
-17.2 C (1.0 F)
2005
-18.3 C (-0.9 F)
2006
-11.1 C (12.0 F)
2007
-15.0 C (5.0 F)
2008
-13.9 C (7.0 F)
2009
-18.9 C (-2.0 F)
2010
-12.2 C (10.0 F)
2011
-18.3 C (-0.9 F)
2012
-12.8 C (9.0 F)
2013
-13.3 C (8.1 F)
2014
-19.4 C (-2.9 F)
2015
-20.0 C (-4.0 F)
2016
-17.2 C (1.0 F)
2017
-13.3 C (8.1 F)
2018
-17.2 C (1.0 F)
2019
-21.1 C (-6.0 F)
2020
-12.2 C (10.0 F)
2021
-9.4 C (15.1 F)
Wettest day (Rx1day)
The wettest day of the year at Hamburg, 1894 to 2021. The record is 127.8 mm (5.0 in) in 2010, marked on the chart; the median year is 66.0 mm (2.6 in).
Wettest day (Rx1day) at Hamburg by year
Year
Wettest day (Rx1day)
1894
62.2 mm (2.4 in)
1895
96.0 mm (3.8 in)
1896
78.5 mm (3.1 in)
1897
73.7 mm (2.9 in)
1898
99.6 mm (3.9 in)
1899
58.4 mm (2.3 in)
1900
45.7 mm (1.8 in)
1901
124.5 mm (4.9 in)
1902
80.5 mm (3.2 in)
1903
63.5 mm (2.5 in)
1904
48.8 mm (1.9 in)
1905
72.4 mm (2.9 in)
1906
116.8 mm (4.6 in)
1907
66.0 mm (2.6 in)
1908
51.6 mm (2.0 in)
1909
61.0 mm (2.4 in)
1910
91.4 mm (3.6 in)
1911
127.0 mm (5.0 in)
1912
54.9 mm (2.2 in)
1913
68.8 mm (2.7 in)
1914
50.8 mm (2.0 in)
1915
66.0 mm (2.6 in)
1916
40.6 mm (1.6 in)
1917
88.9 mm (3.5 in)
1918
54.6 mm (2.1 in)
1919
53.3 mm (2.1 in)
1920
47.0 mm (1.9 in)
1921
53.3 mm (2.1 in)
1922
104.1 mm (4.1 in)
1923
58.4 mm (2.3 in)
1924
66.8 mm (2.6 in)
1925
66.3 mm (2.6 in)
1926
61.2 mm (2.4 in)
1927
66.0 mm (2.6 in)
1928
48.5 mm (1.9 in)
1929
57.2 mm (2.3 in)
1930
51.1 mm (2.0 in)
1931
79.0 mm (3.1 in)
1932
86.4 mm (3.4 in)
1933
67.6 mm (2.7 in)
1934
71.1 mm (2.8 in)
1935
103.4 mm (4.1 in)
1936
63.0 mm (2.5 in)
1937
81.3 mm (3.2 in)
1938
61.0 mm (2.4 in)
1979
62.7 mm (2.5 in)
1980
42.4 mm (1.7 in)
1981
46.2 mm (1.8 in)
1982
54.1 mm (2.1 in)
1983
98.3 mm (3.9 in)
1984
93.7 mm (3.7 in)
1985
61.7 mm (2.4 in)
1986
48.0 mm (1.9 in)
1987
94.7 mm (3.7 in)
1988
60.7 mm (2.4 in)
1989
106.9 mm (4.2 in)
1990
62.2 mm (2.4 in)
1991
38.4 mm (1.5 in)
1992
55.6 mm (2.2 in)
1993
83.3 mm (3.3 in)
1994
51.3 mm (2.0 in)
1995
57.7 mm (2.3 in)
1996
93.2 mm (3.7 in)
1997
47.5 mm (1.9 in)
1998
66.8 mm (2.6 in)
1999
87.4 mm (3.4 in)
2000
73.2 mm (2.9 in)
2001
63.5 mm (2.5 in)
2002
53.3 mm (2.1 in)
2003
76.7 mm (3.0 in)
2004
101.6 mm (4.0 in)
2005
77.5 mm (3.1 in)
2006
81.5 mm (3.2 in)
2007
48.8 mm (1.9 in)
2008
63.2 mm (2.5 in)
2009
54.6 mm (2.1 in)
2010
127.8 mm (5.0 in)
2011
83.3 mm (3.3 in)
2012
106.7 mm (4.2 in)
2013
51.8 mm (2.0 in)
2014
85.1 mm (3.4 in)
2015
70.1 mm (2.8 in)
2016
73.7 mm (2.9 in)
2017
75.2 mm (3.0 in)
2018
87.6 mm (3.4 in)
2019
65.3 mm (2.6 in)
2020
64.8 mm (2.6 in)
2021
104.4 mm (4.1 in)
Wettest five days (Rx5day)
The wettest five days of the year at Hamburg, 1894 to 2021. The record is 286.6 mm (11.3 in) in 2006, marked on the chart; the median year is 102.9 mm (4.1 in).
Wettest five days (Rx5day) at Hamburg by year
Year
Wettest five days (Rx5day)
1894
75.7 mm (3.0 in)
1895
43.2 mm (1.7 in)
1896
145.5 mm (5.7 in)
1897
101.4 mm (4.0 in)
1898
114.3 mm (4.5 in)
1899
78.8 mm (3.1 in)
1900
76.2 mm (3.0 in)
1901
162.6 mm (6.4 in)
1902
91.0 mm (3.6 in)
1903
172.7 mm (6.8 in)
1904
78.2 mm (3.1 in)
1905
115.6 mm (4.6 in)
1906
144.1 mm (5.7 in)
1907
103.3 mm (4.1 in)
1908
89.7 mm (3.5 in)
1909
85.8 mm (3.4 in)
1910
132.1 mm (5.2 in)
1911
159.3 mm (6.3 in)
1912
112.0 mm (4.4 in)
1913
146.8 mm (5.8 in)
1914
69.9 mm (2.8 in)
1915
106.1 mm (4.2 in)
1916
81.3 mm (3.2 in)
1917
102.9 mm (4.1 in)
1918
83.8 mm (3.3 in)
1919
87.7 mm (3.5 in)
1920
67.0 mm (2.6 in)
1921
99.6 mm (3.9 in)
1922
140.7 mm (5.5 in)
1923
127.5 mm (5.0 in)
1924
102.9 mm (4.1 in)
1925
86.9 mm (3.4 in)
1926
116.1 mm (4.6 in)
1927
71.6 mm (2.8 in)
1928
77.8 mm (3.1 in)
1929
112.0 mm (4.4 in)
1930
55.9 mm (2.2 in)
1931
123.4 mm (4.9 in)
1932
96.6 mm (3.8 in)
1933
183.7 mm (7.2 in)
1934
93.9 mm (3.7 in)
1935
121.2 mm (4.8 in)
1936
80.8 mm (3.2 in)
1937
165.1 mm (6.5 in)
1938
119.7 mm (4.7 in)
1979
120.9 mm (4.8 in)
1980
65.2 mm (2.6 in)
1981
78.2 mm (3.1 in)
1982
77.4 mm (3.0 in)
1983
123.0 mm (4.8 in)
1984
130.4 mm (5.1 in)
1985
122.5 mm (4.8 in)
1986
68.1 mm (2.7 in)
1987
150.3 mm (5.9 in)
1988
138.2 mm (5.4 in)
1989
165.9 mm (6.5 in)
1990
81.8 mm (3.2 in)
1991
60.3 mm (2.4 in)
1992
70.6 mm (2.8 in)
1993
87.1 mm (3.4 in)
1994
92.3 mm (3.6 in)
1995
81.8 mm (3.2 in)
1996
132.9 mm (5.2 in)
1997
85.3 mm (3.4 in)
1998
93.4 mm (3.7 in)
1999
132.7 mm (5.2 in)
2000
120.9 mm (4.8 in)
2001
91.5 mm (3.6 in)
2002
59.9 mm (2.4 in)
2003
135.4 mm (5.3 in)
2004
101.9 mm (4.0 in)
2005
132.4 mm (5.2 in)
2006
286.6 mm (11.3 in)
2007
88.2 mm (3.5 in)
2008
96.5 mm (3.8 in)
2009
95.5 mm (3.8 in)
2010
168.4 mm (6.6 in)
2011
209.3 mm (8.2 in)
2012
125.3 mm (4.9 in)
2013
103.1 mm (4.1 in)
2014
112.6 mm (4.4 in)
2015
94.3 mm (3.7 in)
2016
85.1 mm (3.4 in)
2017
104.4 mm (4.1 in)
2018
145.3 mm (5.7 in)
2019
98.3 mm (3.9 in)
2020
135.7 mm (5.3 in)
2021
115.1 mm (4.5 in)
Longest dry spell (CDD)
The longest dry spell of the year at Hamburg, 1894 to 2021. The record is 44 days in 1924, marked on the chart; the median year is 18 days.
Longest dry spell (CDD) at Hamburg by year
Year
Longest dry spell (CDD)
1894
14 days
1895
13 days
1896
12 days
1897
26 days
1898
18 days
1899
14 days
1900
11 days
1901
14 days
1902
28 days
1903
32 days
1904
19 days
1905
38 days
1906
21 days
1907
19 days
1908
20 days
1909
19 days
1910
28 days
1911
16 days
1912
20 days
1913
22 days
1914
20 days
1915
19 days
1916
18 days
1917
22 days
1918
13 days
1919
14 days
1920
14 days
1921
20 days
1922
23 days
1923
22 days
1924
44 days
1925
15 days
1926
15 days
1927
17 days
1928
16 days
1929
12 days
1930
29 days
1931
18 days
1932
22 days
1933
22 days
1934
16 days
1935
18 days
1936
20 days
1937
16 days
1938
13 days
1979
11 days
1980
27 days
1981
18 days
1982
12 days
1983
21 days
1984
13 days
1985
19 days
1986
26 days
1987
27 days
1988
23 days
1989
24 days
1990
14 days
1991
23 days
1992
18 days
1993
17 days
1994
10 days
1995
17 days
1996
10 days
1997
14 days
1998
21 days
1999
17 days
2000
21 days
2001
25 days
2002
25 days
2003
12 days
2004
17 days
2005
17 days
2006
17 days
2007
14 days
2008
19 days
2009
18 days
2010
16 days
2011
15 days
2012
15 days
2013
15 days
2014
18 days
2015
16 days
2016
13 days
2017
21 days
2018
11 days
2019
12 days
2020
15 days
2021
16 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
58 years with a frost
Across 58 years with a frost, the median last spring frost at Hamburg falls on 23 April and the median first autumn frost on 17 October, which leaves a median of 175 days between them.
Fitted over all years, the growing season changes by +2.5 days per decade at this station.
Frost dates and growing season at Hamburg
Measure
Median, all years
Earliest period
Recent period (1937 to 2020)
Recent against earliest
Fitted trend
Last spring frost
23 April
n/a
15 April
n/a
-1.4 days per decade
First autumn frost
17 October
n/a
23 October
n/a
+1.1 days per decade
Growing days
175 days
n/a
188 days
n/a
+2.5 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
71 years, 1897 to 2020
A day with at least 65.8 mm (2.6 in) of rain is expected about once in 2 years. A day with at least 138.5 mm (5.5 in) of rain is expected about once in 100 years.
Rainfall return levels at Hamburg: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
65.8 mm (2.6 in)
5 years
83.9 mm (3.3 in)
10 years
96.5 mm (3.8 in)
25 years
112.9 mm (4.4 in)
50 years
125.6 mm (4.9 in)
100 years
138.5 mm (5.5 in)
Longer than the 71 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, 71 years of values from 1897 to 2020.
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: 127.8 mm (5.0 in) in 2010; 127.0 mm (5.0 in) in 1911; 116.8 mm (4.6 in) in 1906.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Hamburg standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Hamburg 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.