Record envelope, standing records and threshold days for Hatfield (USC00473471), Wisconsin, United States, with 102 years of record.
Key Facts for Hatfield
Hatfield (USC00473471) is a weather station in Wisconsin, United States at 44.42 latitude and -90.73 longitude, 272 m (892 ft) above sea level.
The station reports from 1908 to 2009, 102 years of record.
1,464 records set at Hatfield still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Hatfield set a daily record low maximum temperature of -8.3 C (17.1 F) on 12 March 2009.
About the Station
Location: Wisconsin, United States, 44.42 latitude, -90.73 longitude.
Elevation: 272 m (892 ft).
Period of record: 1908 to 2009, 102 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 Hatfield. 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 Hatfield, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
14.4 C (57.9 F)
-46.1 C (-51.0 F)
n/a
n/a
Feb
16.7 C (62.1 F)
-46.1 C (-51.0 F)
n/a
n/a
Mar
29.4 C (84.9 F)
-40.0 C (-40.0 F)
n/a
n/a
Apr
32.8 C (91.0 F)
-20.6 C (-5.1 F)
n/a
n/a
May
40.6 C (105.1 F)
-9.4 C (15.1 F)
n/a
n/a
Jun
39.4 C (102.9 F)
-3.9 C (25.0 F)
n/a
n/a
Jul
42.2 C (108.0 F)
0.0 C (32.0 F)
n/a
n/a
Aug
40.0 C (104.0 F)
-1.7 C (28.9 F)
n/a
n/a
Sep
36.7 C (98.1 F)
-11.1 C (12.0 F)
n/a
n/a
Oct
34.4 C (93.9 F)
-15.0 C (5.0 F)
n/a
n/a
Nov
25.6 C (78.1 F)
-31.1 C (-24.0 F)
n/a
n/a
Dec
17.8 C (64.0 F)
-39.4 C (-38.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Hatfield still stand. 1936 holds the most, with 45.
Standing records at Hatfield by the year they were set
Year set
Standing records
1908
12
1909
23
1910
16
1911
22
1912
30
1913
23
1914
11
1915
11
1916
19
1917
25
1918
18
1919
9
1920
19
1921
18
1922
9
1923
14
1924
19
1925
19
1926
13
1927
15
1928
23
1929
19
1930
30
1931
25
1932
13
1933
19
1934
28
1935
15
1936
45
1937
14
1938
17
1939
18
1940
22
1941
17
1942
13
1943
11
1944
15
1945
19
1946
9
1947
30
1948
23
1949
11
1950
18
1951
20
1952
19
1953
20
1954
9
1955
15
1956
16
1957
7
1958
4
1959
16
1960
10
1961
4
1962
14
1963
11
1964
26
1965
15
1966
17
1967
17
1968
17
1969
13
1970
15
1971
12
1972
21
1973
15
1974
10
1975
13
1976
22
1977
18
1978
4
1979
10
1980
8
1981
14
1982
10
1983
22
1984
13
1985
14
1986
16
1987
13
1988
17
1989
11
1990
20
1991
21
1992
9
1993
6
2002
3
2003
12
2004
3
2005
5
2006
12
2007
17
2008
7
2009
2
All-Time Record Progression
3 new records
3 all-time records were set at Hatfield between 11 March 1956 and 22 June 1988. Each dot is a new record.
When Hatfield set new all-time records
Date
Kind
Detail
1956-03-11
Record daily snowfall
Record daily snowfall 43.2 cm (17.0 in)
1959-03-06
Record daily snowfall
Record daily snowfall 50.8 cm (20.0 in)
1988-06-22
Record high minimum temperature
Record high minimum temperature 25.6 C (78.1 F)
Wettest Day of Each Month
Jul: 137.2 mm (5.4 in)
The wettest day on record for each calendar month at Hatfield. The most was 137.2 mm (5.4 in) on 13 July 1912.
Record daily precipitation for each month at Hatfield
Month
Record daily precipitation (mm)
Date
Jan
30.7 mm (1.2 in)
25 January 1967
Feb
36.8 mm (1.4 in)
22 February 1922
Mar
52.1 mm (2.1 in)
14 March 1990
Apr
52.1 mm (2.1 in)
16 April 1973
May
104.1 mm (4.1 in)
25 May 1918
Jun
121.7 mm (4.8 in)
27 June 1986
Jul
137.2 mm (5.4 in)
13 July 1912
Aug
106.4 mm (4.2 in)
23 August 1975
Sep
79.8 mm (3.1 in)
19 September 1983
Oct
94.0 mm (3.7 in)
3 October 1954
Nov
55.4 mm (2.2 in)
10 November 1975
Dec
50.8 mm (2.0 in)
10 December 1911
Period of Record Coverage
1908 to 2009
Complete yearUnder 90 percent of days
95 years of record at Hatfield, 1908 to 2009. 11 years have data for under 90 percent of days and are left out of rankings: 1908, 1919, 1924, 1956, 1992, 1993, 1998, 2002 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 73 complete years at Hatfield, 1912 to 2008. Blue stripes are years cooler than the station's own mean of 6.6 C (43.9 F); red stripes are warmer. The coolest year was 1917, at 3.8 C (38.9 F), and the warmest was 1931, at 9.4 C (48.9 F). The strongest colour marks a difference of 2.9 C (5.2 F).
Annual mean temperature at Hatfield as warming stripes, 1912 to 2008
Year
Annual mean temperature
Difference from the station mean
1912
5.2 C
-1.39 C
1913
6.6 C
+0.03 C
1914
6.1 C
-0.50 C
1916
6.1 C
-0.51 C
1917
3.8 C
-2.75 C
1918
6.7 C
+0.15 C
1922
6.7 C
+0.11 C
1923
6.3 C
-0.30 C
1925
6.0 C
-0.57 C
1928
7.0 C
+0.42 C
1929
5.3 C
-1.26 C
1930
7.4 C
+0.77 C
1931
9.4 C
+2.81 C
1932
6.3 C
-0.29 C
1933
7.5 C
+0.92 C
1934
7.8 C
+1.25 C
1935
6.4 C
-0.19 C
1936
6.3 C
-0.33 C
1937
6.0 C
-0.56 C
1938
7.9 C
+1.32 C
1939
7.7 C
+1.10 C
1940
5.9 C
-0.64 C
1941
8.1 C
+1.49 C
1942
7.0 C
+0.40 C
1943
6.2 C
-0.36 C
1944
7.5 C
+0.91 C
1945
5.6 C
-0.95 C
1946
6.9 C
+0.27 C
1947
5.7 C
-0.88 C
1948
5.2 C
-1.36 C
1949
6.1 C
-0.46 C
1950
5.1 C
-1.45 C
1951
5.0 C
-1.62 C
1952
6.9 C
+0.36 C
1953
7.6 C
+1.06 C
1954
7.3 C
+0.69 C
1957
6.9 C
+0.32 C
1958
6.8 C
+0.17 C
1959
6.5 C
-0.06 C
1960
7.0 C
+0.41 C
1961
7.2 C
+0.61 C
1962
6.6 C
+0.01 C
1963
6.4 C
-0.18 C
1964
7.4 C
+0.82 C
1965
6.0 C
-0.59 C
1966
5.8 C
-0.78 C
1967
5.7 C
-0.91 C
1968
6.8 C
+0.22 C
1969
5.8 C
-0.77 C
1970
6.0 C
-0.55 C
1971
6.1 C
-0.48 C
1972
5.1 C
-1.52 C
1973
7.6 C
+0.97 C
1974
6.6 C
+0.02 C
1975
6.3 C
-0.24 C
1977
7.0 C
+0.44 C
1978
5.9 C
-0.70 C
1979
5.8 C
-0.81 C
1980
6.6 C
+0.04 C
1981
7.2 C
+0.66 C
1982
6.4 C
-0.17 C
1983
7.5 C
+0.89 C
1984
7.2 C
+0.57 C
1985
6.3 C
-0.32 C
1986
7.6 C
+1.03 C
1987
9.0 C
+2.37 C
1988
7.4 C
+0.80 C
1989
6.2 C
-0.40 C
1990
8.0 C
+1.42 C
2005
6.6 C
+0.04 C
2006
7.5 C
+0.88 C
2007
6.8 C
+0.23 C
2008
4.8 C
-1.83 C
The fitted trend in annual mean temperature here over 1912 to 2008 is 0.05 C (-0.04 to 0.14) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.1 to 0.2) per decade. The slope is a straight line fitted to 73 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Hatfield
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.05 C (-0.04 to 0.14) per decade
0.1 F (-0.1 to 0.2) per decade
1912 to 2008
73
Not clearly different from zero
Mean daily maximum
0.06 C (-0.03 to 0.14) per decade
0.1 F (-0.1 to 0.3) per decade
1912 to 2008
73
Not clearly different from zero
Mean daily minimum
0.04 C (-0.07 to 0.15) per decade
0.1 F (-0.1 to 0.3) per decade
1912 to 2008
73
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
1908 to 2009
Yearly extremes at Hatfield: 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)
1936
35.6 C (96.1 F)
95
Coldest night (TNn)
-46.1 C (-51.0 F)
1918
-36.1 C (-33.0 F)
95
Wettest day (Rx1day)
137.2 mm (5.4 in)
1912
55.4 mm (2.2 in)
95
Wettest five days (Rx5day)
201.4 mm (7.9 in)
1975
87.1 mm (3.4 in)
95
Longest dry spell (CDD)
54 days
1953
23 days
95
Hottest day (TXx)
The hottest day of the year at Hatfield, 1908 to 2009. The record is 42.2 C (108.0 F) in 1936, marked on the chart; the median year is 35.6 C (96.1 F).
Hottest day (TXx) at Hatfield by year
Year
Hottest day (TXx)
1908
33.9 C (93.0 F)
1909
36.7 C (98.1 F)
1910
38.3 C (100.9 F)
1911
36.7 C (98.1 F)
1912
36.7 C (98.1 F)
1913
36.1 C (97.0 F)
1914
33.9 C (93.0 F)
1915
33.3 C (91.9 F)
1916
37.8 C (100.0 F)
1917
36.7 C (98.1 F)
1918
36.7 C (98.1 F)
1919
36.1 C (97.0 F)
1920
36.1 C (97.0 F)
1921
36.7 C (98.1 F)
1922
36.7 C (98.1 F)
1923
34.4 C (93.9 F)
1924
32.2 C (90.0 F)
1925
35.6 C (96.1 F)
1926
36.1 C (97.0 F)
1927
36.7 C (98.1 F)
1928
35.0 C (95.0 F)
1929
35.6 C (96.1 F)
1930
38.3 C (100.9 F)
1931
38.3 C (100.9 F)
1932
37.2 C (99.0 F)
1933
37.2 C (99.0 F)
1934
40.6 C (105.1 F)
1935
34.4 C (93.9 F)
1936
42.2 C (108.0 F)
1937
36.1 C (97.0 F)
1938
34.4 C (93.9 F)
1939
36.7 C (98.1 F)
1940
37.2 C (99.0 F)
1941
36.1 C (97.0 F)
1942
35.0 C (95.0 F)
1943
35.0 C (95.0 F)
1944
36.1 C (97.0 F)
1945
33.9 C (93.0 F)
1946
35.0 C (95.0 F)
1947
37.8 C (100.0 F)
1948
38.9 C (102.0 F)
1949
33.9 C (93.0 F)
1950
33.9 C (93.0 F)
1951
31.7 C (89.1 F)
1952
34.4 C (93.9 F)
1953
37.2 C (99.0 F)
1954
33.9 C (93.0 F)
1955
37.8 C (100.0 F)
1956
35.6 C (96.1 F)
1957
33.9 C (93.0 F)
1958
35.6 C (96.1 F)
1959
35.0 C (95.0 F)
1960
36.1 C (97.0 F)
1961
34.4 C (93.9 F)
1962
32.8 C (91.0 F)
1963
36.7 C (98.1 F)
1964
38.3 C (100.9 F)
1965
36.1 C (97.0 F)
1966
36.1 C (97.0 F)
1967
33.3 C (91.9 F)
1968
34.4 C (93.9 F)
1969
33.9 C (93.0 F)
1970
34.4 C (93.9 F)
1971
34.4 C (93.9 F)
1972
35.0 C (95.0 F)
1973
35.0 C (95.0 F)
1974
35.6 C (96.1 F)
1975
35.0 C (95.0 F)
1976
35.0 C (95.0 F)
1977
36.7 C (98.1 F)
1978
35.6 C (96.1 F)
1979
32.8 C (91.0 F)
1980
35.6 C (96.1 F)
1981
32.2 C (90.0 F)
1982
34.4 C (93.9 F)
1983
36.1 C (97.0 F)
1984
36.1 C (97.0 F)
1985
35.6 C (96.1 F)
1986
35.0 C (95.0 F)
1987
36.7 C (98.1 F)
1988
40.0 C (104.0 F)
1989
36.7 C (98.1 F)
1990
33.9 C (93.0 F)
1991
34.4 C (93.9 F)
1992
35.0 C (95.0 F)
1993
33.3 C (91.9 F)
1998
32.8 C (91.0 F)
2002
26.7 C (80.1 F)
2003
35.6 C (96.1 F)
2004
31.1 C (88.0 F)
2005
36.1 C (97.0 F)
2006
37.8 C (100.0 F)
2007
35.6 C (96.1 F)
2008
31.7 C (89.1 F)
2009
23.3 C (73.9 F)
Coldest night (TNn)
The coldest night of the year at Hatfield, 1908 to 2009. The record is -46.1 C (-51.0 F) in 1918, marked on the chart; the median year is -36.1 C (-33.0 F).
Coldest night (TNn) at Hatfield by year
Year
Coldest night (TNn)
1908
-22.8 C (-9.0 F)
1909
-33.3 C (-27.9 F)
1910
-36.7 C (-34.1 F)
1911
-42.8 C (-45.0 F)
1912
-41.7 C (-43.1 F)
1913
-37.2 C (-35.0 F)
1914
-37.8 C (-36.0 F)
1915
-39.4 C (-38.9 F)
1916
-37.2 C (-35.0 F)
1917
-42.2 C (-44.0 F)
1918
-46.1 C (-51.0 F)
1919
-37.8 C (-36.0 F)
1920
-35.0 C (-31.0 F)
1921
-32.8 C (-27.0 F)
1922
-43.3 C (-45.9 F)
1923
-40.0 C (-40.0 F)
1924
-42.2 C (-44.0 F)
1925
-39.4 C (-38.9 F)
1926
-34.4 C (-29.9 F)
1927
-42.8 C (-45.0 F)
1928
-40.6 C (-41.1 F)
1929
-44.4 C (-47.9 F)
1930
-42.8 C (-45.0 F)
1931
-28.3 C (-18.9 F)
1932
-34.4 C (-29.9 F)
1933
-34.4 C (-29.9 F)
1934
-28.9 C (-20.0 F)
1935
-40.0 C (-40.0 F)
1936
-40.6 C (-41.1 F)
1937
-40.6 C (-41.1 F)
1938
-34.4 C (-29.9 F)
1939
-30.6 C (-23.1 F)
1940
-38.9 C (-38.0 F)
1941
-28.3 C (-18.9 F)
1942
-38.9 C (-38.0 F)
1943
-37.2 C (-35.0 F)
1944
-27.8 C (-18.0 F)
1945
-33.9 C (-29.0 F)
1946
-36.1 C (-33.0 F)
1947
-37.8 C (-36.0 F)
1948
-41.7 C (-43.1 F)
1949
-40.0 C (-40.0 F)
1950
-39.4 C (-38.9 F)
1951
-46.1 C (-51.0 F)
1952
-38.3 C (-36.9 F)
1953
-31.7 C (-25.1 F)
1954
-32.8 C (-27.0 F)
1955
-31.7 C (-25.1 F)
1956
-31.1 C (-24.0 F)
1957
-35.0 C (-31.0 F)
1958
-32.8 C (-27.0 F)
1959
-36.1 C (-33.0 F)
1960
-29.4 C (-20.9 F)
1961
-32.2 C (-26.0 F)
1962
-40.0 C (-40.0 F)
1963
-43.9 C (-47.0 F)
1964
-30.0 C (-22.0 F)
1965
-38.9 C (-38.0 F)
1966
-35.0 C (-31.0 F)
1967
-42.2 C (-44.0 F)
1968
-38.3 C (-36.9 F)
1969
-35.0 C (-31.0 F)
1970
-38.3 C (-36.9 F)
1971
-42.2 C (-44.0 F)
1972
-38.3 C (-36.9 F)
1973
-35.6 C (-32.1 F)
1974
-35.0 C (-31.0 F)
1975
-36.7 C (-34.1 F)
1976
-38.3 C (-36.9 F)
1977
-41.1 C (-42.0 F)
1978
-32.8 C (-27.0 F)
1979
-40.0 C (-40.0 F)
1980
-29.4 C (-20.9 F)
1981
-30.6 C (-23.1 F)
1982
-39.4 C (-38.9 F)
1983
-39.4 C (-38.9 F)
1984
-35.6 C (-32.1 F)
1985
-39.4 C (-38.9 F)
1986
-33.9 C (-29.0 F)
1987
-35.0 C (-31.0 F)
1988
-35.0 C (-31.0 F)
1989
-32.2 C (-26.0 F)
1990
-37.2 C (-35.0 F)
1991
-32.8 C (-27.0 F)
1992
-27.2 C (-17.0 F)
1993
-30.6 C (-23.1 F)
1998
-6.1 C (21.0 F)
2002
-21.1 C (-6.0 F)
2003
-31.7 C (-25.1 F)
2004
-33.9 C (-29.0 F)
2005
-28.9 C (-20.0 F)
2006
-31.7 C (-25.1 F)
2007
-30.0 C (-22.0 F)
2008
-32.2 C (-26.0 F)
2009
-36.7 C (-34.1 F)
Wettest day (Rx1day)
The wettest day of the year at Hatfield, 1908 to 2009. The record is 137.2 mm (5.4 in) in 1912, marked on the chart; the median year is 55.4 mm (2.2 in).
Wettest day (Rx1day) at Hatfield by year
Year
Wettest day (Rx1day)
1908
51.1 mm (2.0 in)
1909
37.8 mm (1.5 in)
1910
44.5 mm (1.8 in)
1911
51.3 mm (2.0 in)
1912
137.2 mm (5.4 in)
1913
55.4 mm (2.2 in)
1914
41.9 mm (1.6 in)
1915
54.4 mm (2.1 in)
1916
45.7 mm (1.8 in)
1917
27.9 mm (1.1 in)
1918
104.1 mm (4.1 in)
1919
54.6 mm (2.1 in)
1920
32.5 mm (1.3 in)
1921
40.1 mm (1.6 in)
1922
75.2 mm (3.0 in)
1923
52.1 mm (2.1 in)
1924
56.6 mm (2.2 in)
1925
55.4 mm (2.2 in)
1926
82.6 mm (3.3 in)
1927
34.0 mm (1.3 in)
1928
75.2 mm (3.0 in)
1929
42.2 mm (1.7 in)
1930
57.4 mm (2.3 in)
1931
50.3 mm (2.0 in)
1932
46.7 mm (1.8 in)
1933
30.7 mm (1.2 in)
1934
101.6 mm (4.0 in)
1935
75.9 mm (3.0 in)
1936
65.0 mm (2.6 in)
1937
51.6 mm (2.0 in)
1938
64.5 mm (2.5 in)
1939
72.6 mm (2.9 in)
1940
62.2 mm (2.4 in)
1941
70.4 mm (2.8 in)
1942
50.5 mm (2.0 in)
1943
72.4 mm (2.9 in)
1944
73.9 mm (2.9 in)
1945
64.5 mm (2.5 in)
1946
98.6 mm (3.9 in)
1947
52.1 mm (2.1 in)
1948
23.6 mm (0.9 in)
1949
50.8 mm (2.0 in)
1950
89.9 mm (3.5 in)
1951
81.8 mm (3.2 in)
1952
73.2 mm (2.9 in)
1953
69.3 mm (2.7 in)
1954
94.0 mm (3.7 in)
1955
70.6 mm (2.8 in)
1956
75.9 mm (3.0 in)
1957
27.9 mm (1.1 in)
1958
28.7 mm (1.1 in)
1959
61.2 mm (2.4 in)
1960
55.1 mm (2.2 in)
1961
63.5 mm (2.5 in)
1962
56.4 mm (2.2 in)
1963
42.4 mm (1.7 in)
1964
59.7 mm (2.4 in)
1965
59.7 mm (2.4 in)
1966
52.8 mm (2.1 in)
1967
57.2 mm (2.3 in)
1968
41.7 mm (1.6 in)
1969
36.8 mm (1.4 in)
1970
59.7 mm (2.4 in)
1971
52.8 mm (2.1 in)
1972
62.2 mm (2.4 in)
1973
52.1 mm (2.1 in)
1974
36.6 mm (1.4 in)
1975
106.4 mm (4.2 in)
1976
63.8 mm (2.5 in)
1977
54.9 mm (2.2 in)
1978
104.6 mm (4.1 in)
1979
39.4 mm (1.6 in)
1980
94.2 mm (3.7 in)
1981
48.5 mm (1.9 in)
1982
52.8 mm (2.1 in)
1983
79.8 mm (3.1 in)
1984
52.1 mm (2.1 in)
1985
41.4 mm (1.6 in)
1986
121.7 mm (4.8 in)
1987
45.7 mm (1.8 in)
1988
57.9 mm (2.3 in)
1989
65.5 mm (2.6 in)
1990
80.0 mm (3.1 in)
1991
43.9 mm (1.7 in)
1992
40.6 mm (1.6 in)
1993
51.3 mm (2.0 in)
1998
17.0 mm (0.7 in)
2002
27.2 mm (1.1 in)
2003
33.8 mm (1.3 in)
2004
73.2 mm (2.9 in)
2005
54.6 mm (2.1 in)
2006
78.7 mm (3.1 in)
2007
57.2 mm (2.3 in)
2008
59.9 mm (2.4 in)
2009
13.2 mm (0.5 in)
Wettest five days (Rx5day)
The wettest five days of the year at Hatfield, 1908 to 2009. The record is 201.4 mm (7.9 in) in 1975, marked on the chart; the median year is 87.1 mm (3.4 in).
Wettest five days (Rx5day) at Hatfield by year
Year
Wettest five days (Rx5day)
1908
63.3 mm (2.5 in)
1909
72.1 mm (2.8 in)
1910
56.4 mm (2.2 in)
1911
98.5 mm (3.9 in)
1912
143.0 mm (5.6 in)
1913
87.4 mm (3.4 in)
1914
90.7 mm (3.6 in)
1915
63.0 mm (2.5 in)
1916
55.9 mm (2.2 in)
1917
47.2 mm (1.9 in)
1918
136.6 mm (5.4 in)
1919
54.4 mm (2.1 in)
1920
64.8 mm (2.6 in)
1921
70.4 mm (2.8 in)
1922
94.7 mm (3.7 in)
1923
69.1 mm (2.7 in)
1924
81.7 mm (3.2 in)
1925
88.6 mm (3.5 in)
1926
99.7 mm (3.9 in)
1927
95.9 mm (3.8 in)
1928
152.1 mm (6.0 in)
1929
58.5 mm (2.3 in)
1930
87.3 mm (3.4 in)
1931
80.4 mm (3.2 in)
1932
61.9 mm (2.4 in)
1933
35.6 mm (1.4 in)
1934
130.1 mm (5.1 in)
1935
99.0 mm (3.9 in)
1936
69.0 mm (2.7 in)
1937
70.4 mm (2.8 in)
1938
139.5 mm (5.5 in)
1939
77.2 mm (3.0 in)
1940
90.3 mm (3.6 in)
1941
98.8 mm (3.9 in)
1942
119.7 mm (4.7 in)
1943
132.3 mm (5.2 in)
1944
105.4 mm (4.1 in)
1945
100.4 mm (4.0 in)
1946
114.3 mm (4.5 in)
1947
62.7 mm (2.5 in)
1948
32.3 mm (1.3 in)
1949
101.9 mm (4.0 in)
1950
136.4 mm (5.4 in)
1951
106.7 mm (4.2 in)
1952
98.1 mm (3.9 in)
1953
85.3 mm (3.4 in)
1954
114.6 mm (4.5 in)
1955
92.2 mm (3.6 in)
1956
89.4 mm (3.5 in)
1957
59.9 mm (2.4 in)
1958
46.8 mm (1.8 in)
1959
122.2 mm (4.8 in)
1960
94.1 mm (3.7 in)
1961
116.1 mm (4.6 in)
1962
101.3 mm (4.0 in)
1963
75.0 mm (3.0 in)
1964
112.1 mm (4.4 in)
1965
98.3 mm (3.9 in)
1966
62.2 mm (2.4 in)
1967
66.1 mm (2.6 in)
1968
86.3 mm (3.4 in)
1969
84.8 mm (3.3 in)
1970
94.6 mm (3.7 in)
1971
69.1 mm (2.7 in)
1972
178.2 mm (7.0 in)
1973
77.2 mm (3.0 in)
1974
70.6 mm (2.8 in)
1975
201.4 mm (7.9 in)
1976
85.6 mm (3.4 in)
1977
70.4 mm (2.8 in)
1978
139.7 mm (5.5 in)
1979
84.1 mm (3.3 in)
1980
125.0 mm (4.9 in)
1981
86.4 mm (3.4 in)
1982
75.2 mm (3.0 in)
1983
97.6 mm (3.8 in)
1984
87.1 mm (3.4 in)
1985
67.0 mm (2.6 in)
1986
129.6 mm (5.1 in)
1987
94.4 mm (3.7 in)
1988
98.3 mm (3.9 in)
1989
83.3 mm (3.3 in)
1990
98.8 mm (3.9 in)
1991
83.5 mm (3.3 in)
1992
58.8 mm (2.3 in)
1993
186.2 mm (7.3 in)
1998
17.0 mm (0.7 in)
2002
37.6 mm (1.5 in)
2003
76.2 mm (3.0 in)
2004
120.2 mm (4.7 in)
2005
86.9 mm (3.4 in)
2006
99.0 mm (3.9 in)
2007
76.0 mm (3.0 in)
2008
86.4 mm (3.4 in)
2009
20.9 mm (0.8 in)
Longest dry spell (CDD)
The longest dry spell of the year at Hatfield, 1908 to 2009. The record is 54 days in 1953, marked on the chart; the median year is 23 days.
Longest dry spell (CDD) at Hatfield by year
Year
Longest dry spell (CDD)
1908
29 days
1909
35 days
1910
36 days
1911
28 days
1912
29 days
1913
22 days
1914
18 days
1915
29 days
1916
17 days
1917
23 days
1918
22 days
1919
26 days
1920
14 days
1921
15 days
1922
13 days
1923
26 days
1924
13 days
1925
20 days
1926
20 days
1927
16 days
1928
18 days
1929
30 days
1930
29 days
1931
20 days
1932
22 days
1933
19 days
1934
39 days
1935
19 days
1936
23 days
1937
24 days
1938
21 days
1939
24 days
1940
32 days
1941
19 days
1942
45 days
1943
46 days
1944
27 days
1945
16 days
1946
30 days
1947
38 days
1948
19 days
1949
34 days
1950
20 days
1951
18 days
1952
30 days
1953
54 days
1954
23 days
1955
16 days
1956
15 days
1957
28 days
1958
26 days
1959
22 days
1960
26 days
1961
25 days
1962
27 days
1963
20 days
1964
37 days
1965
17 days
1966
24 days
1967
23 days
1968
27 days
1969
35 days
1970
21 days
1971
27 days
1972
23 days
1973
16 days
1974
16 days
1975
14 days
1976
37 days
1977
13 days
1978
35 days
1979
17 days
1980
31 days
1981
31 days
1982
21 days
1983
21 days
1984
22 days
1985
12 days
1986
26 days
1987
29 days
1988
21 days
1989
25 days
1990
20 days
1991
33 days
1992
23 days
1993
16 days
1998
30 days
2002
41 days
2003
23 days
2004
18 days
2005
17 days
2006
24 days
2007
42 days
2008
15 days
2009
20 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
73 years with a frost
Across 73 years with a frost, the median last spring frost at Hatfield falls on 25 May and the median first autumn frost on 17 September, which leaves a median of 114 days between them.
In 1964 to 2008 the median growing season was 112 days. That is 2 days fewer than in 1912 to 1948.
Fitted over all years, the growing season changes by +0.5 days per decade at this station.
Frost dates and growing season at Hatfield
Measure
Median, all years
Earliest period (1912 to 1948)
Recent period (1964 to 2008)
Recent against earliest
Fitted trend
Last spring frost
25 May
24 May
29 May
5 days later
+0.4 days per decade
First autumn frost
17 September
15 September
18 September
3 days later
+0.9 days per decade
Growing days
114 days
114 days
112 days
2 days fewer
+0.5 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
78 years, 1909 to 2008
A day with at least 57.0 mm (2.2 in) of rain is expected about once in 2 years. A day with at least 126.1 mm (5.0 in) of rain is expected about once in 100 years.
Rainfall return levels at Hatfield: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
57.0 mm (2.2 in)
5 years
75.6 mm (3.0 in)
10 years
87.9 mm (3.5 in)
25 years
103.4 mm (4.1 in)
50 years
114.8 mm (4.5 in)
100 years
126.1 mm (5.0 in)
Longer than the 78 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, 78 years of values from 1909 to 2008.
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: 137.2 mm (5.4 in) in 1912; 121.7 mm (4.8 in) in 1986; 106.4 mm (4.2 in) in 1975.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Hatfield, at 1989. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1989 ran 0.5 C (0.8 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at Hatfield, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1989
-0.4
-0.8
likely
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 Hatfield standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Hatfield 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.