Record envelope, standing records and threshold days for Norfolk (USC00255990), Nebraska, United States, with 73 years of record.
Key Facts for Norfolk
Norfolk (USC00255990) is a weather station in Nebraska, United States at 42.03 latitude and -97.42 longitude, 467 m (1,532 ft) above sea level.
The station reports from 1893 to 1965, 73 years of record.
1,464 records set at Norfolk still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Norfolk set a monthly record daily precipitation of 38.9 mm (1.5 in) on 28 February 1965.
About the Station
Location: Nebraska, United States, 42.03 latitude, -97.42 longitude.
Elevation: 467 m (1,532 ft).
Period of record: 1893 to 1965, 73 years.
Eligible elements: tmax, tmin, prcp, snow.
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 Norfolk. 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 Norfolk, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
19.4 C (66.9 F)
-39.4 C (-38.9 F)
n/a
n/a
Feb
22.2 C (72.0 F)
-37.2 C (-35.0 F)
n/a
n/a
Mar
33.3 C (91.9 F)
-27.2 C (-17.0 F)
n/a
n/a
Apr
38.9 C (102.0 F)
-20.6 C (-5.1 F)
n/a
n/a
May
41.1 C (106.0 F)
-6.1 C (21.0 F)
n/a
n/a
Jun
42.8 C (109.0 F)
1.1 C (34.0 F)
n/a
n/a
Jul
46.7 C (116.1 F)
6.1 C (43.0 F)
n/a
n/a
Aug
43.3 C (109.9 F)
2.2 C (36.0 F)
n/a
n/a
Sep
41.1 C (106.0 F)
-6.7 C (19.9 F)
n/a
n/a
Oct
35.6 C (96.1 F)
-16.7 C (1.9 F)
n/a
n/a
Nov
28.3 C (82.9 F)
-24.4 C (-11.9 F)
n/a
n/a
Dec
22.2 C (72.0 F)
-33.9 C (-29.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Norfolk still stand. 1936 holds the most, with 59.
Standing records at Norfolk by the year they were set
Year set
Standing records
1893
17
1894
33
1895
36
1896
32
1897
44
1898
27
1899
35
1900
16
1901
17
1902
31
1903
25
1904
20
1905
34
1906
22
1907
16
1908
33
1909
35
1910
33
1911
29
1912
25
1913
35
1914
23
1915
31
1916
29
1917
18
1918
40
1919
21
1920
23
1921
27
1922
21
1923
22
1924
35
1925
28
1926
15
1927
22
1928
34
1929
17
1930
44
1931
32
1932
23
1933
23
1934
52
1935
22
1936
59
1937
39
1938
25
1939
25
1940
18
1941
22
1942
20
1943
27
1944
19
1945
13
All-Time Record Progression
4 new records
4 all-time records were set at Norfolk between 9 July 1930 and 4 June 1940. Each dot is a new record.
When Norfolk set new all-time records
Date
Kind
Detail
1930-07-09
Record high maximum temperature
Record high maximum temperature 43.9 C (111.0 F)
1934-07-19
Record high maximum temperature
Record high maximum temperature 45.0 C (113.0 F)
1936-07-17
Record high maximum temperature
Record high maximum temperature 46.7 C (116.1 F)
1940-06-04
Record daily precipitation
Record daily precipitation 197.6 mm (7.8 in)
Wettest Day of Each Month
Jun: 197.6 mm (7.8 in)
The wettest day on record for each calendar month at Norfolk. The most was 197.6 mm (7.8 in) on 4 June 1940.
Record daily precipitation for each month at Norfolk
Month
Record daily precipitation (mm)
Date
Jan
28.4 mm (1.1 in)
4 January 1949
Feb
38.9 mm (1.5 in)
28 February 1965
Mar
44.5 mm (1.8 in)
11 March 1927
Apr
72.4 mm (2.9 in)
17 April 1908
May
83.8 mm (3.3 in)
3 May 1899
Jun
197.6 mm (7.8 in)
4 June 1940
Jul
142.2 mm (5.6 in)
12 July 1908
Aug
63.8 mm (2.5 in)
12 August 1950
Sep
95.3 mm (3.8 in)
11 September 1900
Oct
41.1 mm (1.6 in)
18 October 1904
Nov
54.9 mm (2.2 in)
25 November 1896
Dec
54.1 mm (2.1 in)
2 December 1933
Period of Record Coverage
1893 to 1945
Complete yearUnder 90 percent of days
53 years of record at Norfolk, 1893 to 1945. 5 years have data for under 90 percent of days and are left out of rankings: 1893, 1895, 1904, 1939, 1945.
Cooler than the station meanWarmer than the station mean
One stripe for each of 43 complete years at Norfolk, 1894 to 1944. Blue stripes are years cooler than the station's own mean of 9.3 C (48.8 F); red stripes are warmer. The coolest year was 1924, at 7.6 C (45.7 F), and the warmest was 1931, at 11.5 C (52.7 F). The strongest colour marks a difference of 2.2 C (4.0 F).
Annual mean temperature at Norfolk as warming stripes, 1894 to 1944
Year
Annual mean temperature
Difference from the station mean
1894
9.7 C
+0.36 C
1899
8.2 C
-1.15 C
1902
8.8 C
-0.49 C
1904
8.7 C
-0.63 C
1905
8.8 C
-0.52 C
1906
9.0 C
-0.27 C
1907
8.8 C
-0.55 C
1908
9.8 C
+0.49 C
1909
8.1 C
-1.20 C
1910
9.2 C
-0.11 C
1911
9.6 C
+0.28 C
1912
8.4 C
-0.90 C
1913
9.9 C
+0.56 C
1914
9.8 C
+0.46 C
1915
9.1 C
-0.24 C
1916
8.9 C
-0.38 C
1917
8.0 C
-1.36 C
1918
9.8 C
+0.50 C
1919
9.0 C
-0.30 C
1920
9.0 C
-0.27 C
1921
11.2 C
+1.85 C
1922
9.9 C
+0.55 C
1923
9.5 C
+0.14 C
1924
7.6 C
-1.69 C
1925
9.4 C
+0.08 C
1926
9.4 C
+0.07 C
1927
8.9 C
-0.41 C
1928
9.6 C
+0.27 C
1929
8.0 C
-1.28 C
1930
10.2 C
+0.93 C
1931
11.5 C
+2.17 C
1932
8.7 C
-0.60 C
1933
10.6 C
+1.26 C
1934
11.0 C
+1.71 C
1935
9.4 C
+0.13 C
1936
9.1 C
-0.18 C
1937
8.9 C
-0.38 C
1938
10.5 C
+1.20 C
1940
8.9 C
-0.45 C
1941
10.1 C
+0.82 C
1942
9.2 C
-0.10 C
1943
9.3 C
+0.01 C
1944
8.9 C
-0.46 C
The fitted trend in annual mean temperature here over 1894 to 1944 is 0.17 C (-0.02 to 0.37) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.31 F (-0.04 to 0.66) per decade. The slope is a straight line fitted to 43 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Norfolk
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.17 C (-0.02 to 0.37) per decade
0.31 F (-0.04 to 0.66) per decade
1894 to 1944
43
Not clearly different from zero
Mean daily maximum
0.1 C (-0.1 to 0.3) per decade
0.2 F (-0.3 to 0.6) per decade
1894 to 1944
43
Not clearly different from zero
Mean daily minimum
0.3 C (0.1 to 0.5) per decade
0.5 F (0.1 to 0.8) per decade
1894 to 1944
43
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 1965
Yearly extremes at Norfolk: 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)
1936
38.9 C (102.0 F)
53
Coldest night (TNn)
-39.4 C (-38.9 F)
1912
-30.0 C (-22.0 F)
53
Wettest day (Rx1day)
197.6 mm (7.8 in)
1940
55.9 mm (2.2 in)
73
Wettest five days (Rx5day)
146.6 mm (5.8 in)
1908
84.9 mm (3.3 in)
73
Longest dry spell (CDD)
59 days
1914
29 days
73
Hottest day (TXx)
The hottest day of the year at Norfolk, 1893 to 1965. The record is 46.7 C (116.1 F) in 1936, marked on the chart; the median year is 38.9 C (102.0 F).
Hottest day (TXx) at Norfolk by year
Year
Hottest day (TXx)
1893
36.7 C (98.1 F)
1894
37.8 C (100.0 F)
1895
41.1 C (106.0 F)
1896
33.9 C (93.0 F)
1897
35.6 C (96.1 F)
1898
36.7 C (98.1 F)
1899
38.3 C (100.9 F)
1900
39.4 C (102.9 F)
1901
42.2 C (108.0 F)
1902
36.7 C (98.1 F)
1903
36.1 C (97.0 F)
1904
37.8 C (100.0 F)
1905
37.2 C (99.0 F)
1906
37.2 C (99.0 F)
1907
37.8 C (100.0 F)
1908
37.2 C (99.0 F)
1909
37.2 C (99.0 F)
1910
38.9 C (102.0 F)
1911
39.4 C (102.9 F)
1912
38.9 C (102.0 F)
1913
41.1 C (106.0 F)
1914
39.4 C (102.9 F)
1915
37.2 C (99.0 F)
1916
39.4 C (102.9 F)
1917
40.6 C (105.1 F)
1918
41.1 C (106.0 F)
1919
38.3 C (100.9 F)
1920
36.7 C (98.1 F)
1921
38.9 C (102.0 F)
1922
39.4 C (102.9 F)
1923
38.9 C (102.0 F)
1924
36.7 C (98.1 F)
1925
39.4 C (102.9 F)
1926
41.1 C (106.0 F)
1927
38.3 C (100.9 F)
1928
38.9 C (102.0 F)
1929
38.9 C (102.0 F)
1930
43.9 C (111.0 F)
1931
40.6 C (105.1 F)
1932
40.0 C (104.0 F)
1933
42.8 C (109.0 F)
1934
45.0 C (113.0 F)
1935
42.2 C (108.0 F)
1936
46.7 C (116.1 F)
1937
42.2 C (108.0 F)
1938
41.1 C (106.0 F)
1939
43.3 C (109.9 F)
1940
42.2 C (108.0 F)
1941
38.9 C (102.0 F)
1942
39.4 C (102.9 F)
1943
38.3 C (100.9 F)
1944
38.9 C (102.0 F)
1945
37.2 C (99.0 F)
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
n/a
1960
n/a
1961
n/a
1962
n/a
1963
n/a
1964
n/a
1965
n/a
Coldest night (TNn)
The coldest night of the year at Norfolk, 1893 to 1965. The record is -39.4 C (-38.9 F) in 1912, marked on the chart; the median year is -30.0 C (-22.0 F).
Coldest night (TNn) at Norfolk by year
Year
Coldest night (TNn)
1893
-28.9 C (-20.0 F)
1894
-32.8 C (-27.0 F)
1895
-30.6 C (-23.1 F)
1896
-23.3 C (-9.9 F)
1897
-28.9 C (-20.0 F)
1898
-27.8 C (-18.0 F)
1899
-37.2 C (-35.0 F)
1900
-33.9 C (-29.0 F)
1901
-33.9 C (-29.0 F)
1902
-33.9 C (-29.0 F)
1903
-28.9 C (-20.0 F)
1904
-30.0 C (-22.0 F)
1905
-37.2 C (-35.0 F)
1906
-26.7 C (-16.1 F)
1907
-30.0 C (-22.0 F)
1908
-25.0 C (-13.0 F)
1909
-29.4 C (-20.9 F)
1910
-27.2 C (-17.0 F)
1911
-32.8 C (-27.0 F)
1912
-39.4 C (-38.9 F)
1913
-28.9 C (-20.0 F)
1914
-30.0 C (-22.0 F)
1915
-31.1 C (-24.0 F)
1916
-33.3 C (-27.9 F)
1917
-32.8 C (-27.0 F)
1918
-32.2 C (-26.0 F)
1919
-32.2 C (-26.0 F)
1920
-30.6 C (-23.1 F)
1921
-24.4 C (-11.9 F)
1922
-27.2 C (-17.0 F)
1923
-25.0 C (-13.0 F)
1924
-35.6 C (-32.1 F)
1925
-25.0 C (-13.0 F)
1926
-30.6 C (-23.1 F)
1927
-27.2 C (-17.0 F)
1928
-27.2 C (-17.0 F)
1929
-32.8 C (-27.0 F)
1930
-31.7 C (-25.1 F)
1931
-20.6 C (-5.1 F)
1932
-31.7 C (-25.1 F)
1933
-32.8 C (-27.0 F)
1934
-30.0 C (-22.0 F)
1935
-26.1 C (-15.0 F)
1936
-34.4 C (-29.9 F)
1937
-30.0 C (-22.0 F)
1938
-25.6 C (-14.1 F)
1939
-26.7 C (-16.1 F)
1940
-29.4 C (-20.9 F)
1941
-21.7 C (-7.1 F)
1942
-29.4 C (-20.9 F)
1943
-32.8 C (-27.0 F)
1944
-32.8 C (-27.0 F)
1945
-22.2 C (-8.0 F)
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
n/a
1960
n/a
1961
n/a
1962
n/a
1963
n/a
1964
n/a
1965
n/a
Wettest day (Rx1day)
The wettest day of the year at Norfolk, 1893 to 1965. The record is 197.6 mm (7.8 in) in 1940, marked on the chart; the median year is 55.9 mm (2.2 in).
Wettest day (Rx1day) at Norfolk by year
Year
Wettest day (Rx1day)
1893
58.9 mm (2.3 in)
1894
45.7 mm (1.8 in)
1895
45.7 mm (1.8 in)
1896
62.5 mm (2.5 in)
1897
61.7 mm (2.4 in)
1898
46.7 mm (1.8 in)
1899
83.8 mm (3.3 in)
1900
95.3 mm (3.8 in)
1901
62.0 mm (2.4 in)
1902
52.6 mm (2.1 in)
1903
80.8 mm (3.2 in)
1904
45.7 mm (1.8 in)
1905
55.9 mm (2.2 in)
1906
75.2 mm (3.0 in)
1907
53.3 mm (2.1 in)
1908
142.2 mm (5.6 in)
1909
34.5 mm (1.4 in)
1910
29.5 mm (1.2 in)
1911
61.0 mm (2.4 in)
1912
48.3 mm (1.9 in)
1913
49.3 mm (1.9 in)
1914
61.5 mm (2.4 in)
1915
53.3 mm (2.1 in)
1916
50.8 mm (2.0 in)
1917
57.7 mm (2.3 in)
1918
49.0 mm (1.9 in)
1919
48.3 mm (1.9 in)
1920
55.1 mm (2.2 in)
1921
50.8 mm (2.0 in)
1922
56.9 mm (2.2 in)
1923
48.3 mm (1.9 in)
1924
57.2 mm (2.3 in)
1925
81.3 mm (3.2 in)
1926
61.5 mm (2.4 in)
1927
48.3 mm (1.9 in)
1928
40.4 mm (1.6 in)
1929
70.1 mm (2.8 in)
1930
53.8 mm (2.1 in)
1931
31.5 mm (1.2 in)
1932
80.5 mm (3.2 in)
1933
54.1 mm (2.1 in)
1934
32.5 mm (1.3 in)
1935
36.1 mm (1.4 in)
1936
36.6 mm (1.4 in)
1937
56.4 mm (2.2 in)
1938
39.4 mm (1.6 in)
1939
38.1 mm (1.5 in)
1940
197.6 mm (7.8 in)
1941
63.2 mm (2.5 in)
1942
57.9 mm (2.3 in)
1943
57.2 mm (2.3 in)
1944
73.9 mm (2.9 in)
1945
52.6 mm (2.1 in)
1946
22.6 mm (0.9 in)
1947
65.3 mm (2.6 in)
1948
81.3 mm (3.2 in)
1949
89.4 mm (3.5 in)
1950
65.5 mm (2.6 in)
1951
47.8 mm (1.9 in)
1952
85.9 mm (3.4 in)
1953
50.3 mm (2.0 in)
1954
66.0 mm (2.6 in)
1955
67.3 mm (2.6 in)
1956
81.8 mm (3.2 in)
1957
57.2 mm (2.3 in)
1958
114.8 mm (4.5 in)
1959
53.8 mm (2.1 in)
1960
77.2 mm (3.0 in)
1961
56.4 mm (2.2 in)
1962
42.9 mm (1.7 in)
1963
44.5 mm (1.8 in)
1964
52.1 mm (2.1 in)
1965
38.9 mm (1.5 in)
Wettest five days (Rx5day)
The wettest five days of the year at Norfolk, 1893 to 1965. The record is 146.6 mm (5.8 in) in 1908, marked on the chart; the median year is 84.9 mm (3.3 in).
Wettest five days (Rx5day) at Norfolk by year
Year
Wettest five days (Rx5day)
1893
86.6 mm (3.4 in)
1894
47.2 mm (1.9 in)
1895
74.6 mm (2.9 in)
1896
85.4 mm (3.4 in)
1897
78.5 mm (3.1 in)
1898
95.2 mm (3.7 in)
1899
91.4 mm (3.6 in)
1900
96.6 mm (3.8 in)
1901
120.9 mm (4.8 in)
1902
93.0 mm (3.7 in)
1903
106.0 mm (4.2 in)
1904
77.3 mm (3.0 in)
1905
121.3 mm (4.8 in)
1906
108.1 mm (4.3 in)
1907
89.9 mm (3.5 in)
1908
146.6 mm (5.8 in)
1909
61.9 mm (2.4 in)
1910
60.0 mm (2.4 in)
1911
80.5 mm (3.2 in)
1912
65.9 mm (2.6 in)
1913
72.9 mm (2.9 in)
1914
111.6 mm (4.4 in)
1915
128.2 mm (5.0 in)
1916
74.6 mm (2.9 in)
1917
78.8 mm (3.1 in)
1918
79.2 mm (3.1 in)
1919
72.2 mm (2.8 in)
1920
66.0 mm (2.6 in)
1921
78.5 mm (3.1 in)
1922
96.9 mm (3.8 in)
1923
102.1 mm (4.0 in)
1924
138.6 mm (5.5 in)
1925
84.4 mm (3.3 in)
1926
91.2 mm (3.6 in)
1927
90.7 mm (3.6 in)
1928
65.8 mm (2.6 in)
1929
81.7 mm (3.2 in)
1930
133.3 mm (5.2 in)
1931
59.4 mm (2.3 in)
1932
82.1 mm (3.2 in)
1933
65.5 mm (2.6 in)
1934
44.4 mm (1.7 in)
1935
61.4 mm (2.4 in)
1936
57.7 mm (2.3 in)
1937
67.1 mm (2.6 in)
1938
68.3 mm (2.7 in)
1939
53.1 mm (2.1 in)
1940
43.5 mm (1.7 in)
1941
102.3 mm (4.0 in)
1942
86.9 mm (3.4 in)
1943
84.9 mm (3.3 in)
1944
95.3 mm (3.8 in)
1945
84.1 mm (3.3 in)
1946
62.2 mm (2.4 in)
1947
103.1 mm (4.1 in)
1948
102.6 mm (4.0 in)
1949
105.2 mm (4.1 in)
1950
110.3 mm (4.3 in)
1951
76.2 mm (3.0 in)
1952
99.6 mm (3.9 in)
1953
66.8 mm (2.6 in)
1954
85.1 mm (3.4 in)
1955
85.5 mm (3.4 in)
1956
94.2 mm (3.7 in)
1957
90.2 mm (3.6 in)
1958
140.2 mm (5.5 in)
1959
103.0 mm (4.1 in)
1960
101.4 mm (4.0 in)
1961
70.6 mm (2.8 in)
1962
74.8 mm (2.9 in)
1963
63.1 mm (2.5 in)
1964
106.8 mm (4.2 in)
1965
38.9 mm (1.5 in)
Longest dry spell (CDD)
The longest dry spell of the year at Norfolk, 1893 to 1965. The record is 59 days in 1914, marked on the chart; the median year is 29 days.
Longest dry spell (CDD) at Norfolk by year
Year
Longest dry spell (CDD)
1893
32 days
1894
43 days
1895
36 days
1896
22 days
1897
26 days
1898
25 days
1899
33 days
1900
32 days
1901
38 days
1902
25 days
1903
29 days
1904
36 days
1905
33 days
1906
28 days
1907
44 days
1908
28 days
1909
20 days
1910
50 days
1911
34 days
1912
31 days
1913
45 days
1914
59 days
1915
30 days
1916
23 days
1917
29 days
1918
22 days
1919
27 days
1920
27 days
1921
27 days
1922
23 days
1923
28 days
1924
30 days
1925
31 days
1926
28 days
1927
27 days
1928
35 days
1929
23 days
1930
25 days
1931
32 days
1932
28 days
1933
29 days
1934
28 days
1935
42 days
1936
25 days
1937
24 days
1938
29 days
1939
23 days
1940
21 days
1941
22 days
1942
30 days
1943
52 days
1944
22 days
1945
13 days
1946
42 days
1947
29 days
1948
32 days
1949
41 days
1950
31 days
1951
19 days
1952
58 days
1953
21 days
1954
31 days
1955
35 days
1956
19 days
1957
42 days
1958
54 days
1959
44 days
1960
28 days
1961
30 days
1962
34 days
1963
25 days
1964
33 days
1965
30 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
43 years with a frost
Across 43 years with a frost, the median last spring frost at Norfolk falls on 7 May and the median first autumn frost on 30 September, which leaves a median of 151 days between them.
Fitted over all years, the growing season changes by +0.1 days per decade at this station.
Frost dates and growing season at Norfolk
Measure
Median, all years
Earliest period
Recent period (1914 to 1944)
Recent against earliest
Fitted trend
Last spring frost
7 May
n/a
8 May
n/a
-1.3 days per decade
First autumn frost
30 September
n/a
3 October
n/a
-1.2 days per decade
Growing days
151 days
n/a
153 days
n/a
+0.1 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
67 years, 1893 to 1963
A day with at least 55.1 mm (2.2 in) of rain is expected about once in 2 years. A day with at least 155.2 mm (6.1 in) of rain is expected about once in 100 years.
Rainfall return levels at Norfolk: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
55.1 mm (2.2 in)
5 years
73.7 mm (2.9 in)
10 years
88.8 mm (3.5 in)
25 years
111.7 mm (4.4 in)
50 years
131.9 mm (5.2 in)
100 years
155.2 mm (6.1 in)
Longer than the 67 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, 67 years of values from 1893 to 1963.
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: 197.6 mm (7.8 in) in 1940; 142.2 mm (5.6 in) in 1908; 114.8 mm (4.5 in) in 1958.
Station Changes
2 suspected
2 changes were suspected in the annual mean temperature of Norfolk, at 1918 and 1923. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1918 ran 0.6 C (1.0 F) lower than in the years before (likely change).
Relative to 5 neighbouring stations, the station's annual mean temperature from 1923 ran 0.3 C (0.5 F) higher than in the years before (possible change).
Suspected changes in the annual mean temperature at Norfolk, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1918
-0.6
-1.0
likely
5
1923
+0.3
+0.5
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 Norfolk standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Norfolk 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.