Record envelope, standing records and threshold days for Dudleys (USC00042539), California, United States, with 69 years of record.
Key Facts for Dudleys
Dudleys (USC00042539) is a weather station in California, United States at 37.75 latitude and -120.10 longitude, 915 m (3,002 ft) above sea level.
The station reports from 1908 to 1976, 69 years of record.
1,464 records set at Dudleys still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Dudleys set a daily record high maximum temperature of 25.6 C (78.1 F) on 31 January 1976.
About the Station
Location: California, United States, 37.75 latitude, -120.10 longitude.
Elevation: 915 m (3,002 ft).
Period of record: 1908 to 1976, 69 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 Dudleys. 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 Dudleys, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
26.1 C (79.0 F)
-23.3 C (-9.9 F)
n/a
n/a
Feb
25.6 C (78.1 F)
-18.3 C (-0.9 F)
n/a
n/a
Mar
29.4 C (84.9 F)
-14.4 C (6.1 F)
n/a
n/a
Apr
32.2 C (90.0 F)
-9.4 C (15.1 F)
n/a
n/a
May
34.4 C (93.9 F)
-5.6 C (21.9 F)
n/a
n/a
Jun
40.0 C (104.0 F)
-4.4 C (24.1 F)
n/a
n/a
Jul
41.1 C (106.0 F)
-3.3 C (26.1 F)
n/a
n/a
Aug
41.7 C (107.1 F)
-1.1 C (30.0 F)
n/a
n/a
Sep
40.6 C (105.1 F)
-6.7 C (19.9 F)
n/a
n/a
Oct
35.6 C (96.1 F)
-11.7 C (10.9 F)
n/a
n/a
Nov
30.6 C (87.1 F)
-12.2 C (10.0 F)
n/a
n/a
Dec
27.8 C (82.0 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 Dudleys still stand. 1950 holds the most, with 39.
Standing records at Dudleys by the year they were set
Year set
Standing records
1908
10
1909
26
1910
23
1911
19
1912
18
1913
31
1914
20
1915
11
1916
32
1917
31
1918
37
1919
9
1920
22
1921
19
1922
38
1923
14
1924
16
1925
31
1926
18
1927
26
1928
15
1929
21
1930
20
1931
37
1932
32
1933
33
1934
24
1935
17
1936
26
1937
37
1938
12
1939
37
1940
29
1941
2
1942
6
1943
14
1944
12
1945
15
1946
10
1947
15
1948
13
1949
33
1950
39
1951
17
1952
23
1953
16
1954
30
1955
21
1956
19
1957
18
1958
18
1959
14
1960
24
1961
24
1962
27
1963
24
1964
27
1965
14
1966
13
1967
22
1968
20
1969
19
1970
19
1971
36
1972
37
1973
12
1974
1
1975
12
1976
7
All-Time Record Progression
2 new records
2 all-time records were set at Dudleys between 18 November 1950 and 21 January 1962. Each dot is a new record.
When Dudleys set new all-time records
Date
Kind
Detail
1950-11-18
Record daily precipitation
Record daily precipitation 213.6 mm (8.4 in)
1962-01-21
Record low maximum temperature
Record low maximum temperature -1.1 C (30.0 F)
Wettest Day of Each Month
Nov: 213.6 mm (8.4 in)
The wettest day on record for each calendar month at Dudleys. The most was 213.6 mm (8.4 in) on 18 November 1950.
Record daily precipitation for each month at Dudleys
Month
Record daily precipitation (mm)
Date
Jan
118.9 mm (4.7 in)
13 January 1909
Feb
104.6 mm (4.1 in)
10 February 1962
Mar
95.0 mm (3.7 in)
25 March 1928
Apr
114.8 mm (4.5 in)
10 April 1965
May
53.1 mm (2.1 in)
18 May 1957
Jun
35.3 mm (1.4 in)
29 June 1945
Jul
9.4 mm (0.37 in)
12 July 1962
Aug
16.0 mm (0.6 in)
6 August 1973
Sep
87.4 mm (3.4 in)
18 September 1959
Oct
78.2 mm (3.1 in)
14 October 1962
Nov
213.6 mm (8.4 in)
18 November 1950
Dec
160.3 mm (6.3 in)
23 December 1955
Period of Record Coverage
1908 to 1976
Complete yearUnder 90 percent of days
69 years of record at Dudleys, 1908 to 1976. 12 years have data for under 90 percent of days and are left out of rankings: 1908, 1937, 1940, 1941, 1942, 1943, 1944, 1945 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 49 complete years at Dudleys, 1910 to 1972. Blue stripes are years cooler than the station's own mean of 11.2 C (52.2 F); red stripes are warmer. The coolest year was 1971, at 9.8 C (49.6 F), and the warmest was 1934, at 12.8 C (55.0 F). The strongest colour marks a difference of 1.6 C (2.9 F).
Annual mean temperature at Dudleys as warming stripes, 1910 to 1972
Year
Annual mean temperature
Difference from the station mean
1910
11.5 C
+0.21 C
1911
10.3 C
-0.90 C
1912
10.3 C
-0.93 C
1913
10.8 C
-0.47 C
1914
11.6 C
+0.39 C
1915
11.1 C
-0.15 C
1916
10.4 C
-0.84 C
1918
11.7 C
+0.41 C
1919
11.1 C
-0.13 C
1920
10.6 C
-0.63 C
1921
11.4 C
+0.19 C
1922
10.6 C
-0.69 C
1923
11.0 C
-0.27 C
1924
11.4 C
+0.16 C
1925
11.8 C
+0.59 C
1926
12.3 C
+1.10 C
1928
11.4 C
+0.18 C
1929
11.4 C
+0.15 C
1930
11.2 C
-0.05 C
1931
12.0 C
+0.74 C
1932
10.9 C
-0.38 C
1933
11.1 C
-0.13 C
1934
12.8 C
+1.53 C
1935
11.2 C
-0.07 C
1936
12.3 C
+1.02 C
1939
12.5 C
+1.30 C
1946
10.8 C
-0.48 C
1948
10.2 C
-1.00 C
1949
10.7 C
-0.53 C
1950
11.9 C
+0.68 C
1951
11.3 C
+0.07 C
1953
11.1 C
-0.10 C
1954
11.6 C
+0.34 C
1955
10.5 C
-0.72 C
1956
11.3 C
+0.01 C
1957
11.3 C
+0.04 C
1958
12.4 C
+1.17 C
1960
11.7 C
+0.43 C
1961
11.8 C
+0.55 C
1962
11.3 C
+0.07 C
1963
11.3 C
+0.01 C
1964
10.7 C
-0.53 C
1965
10.9 C
-0.35 C
1967
11.6 C
+0.34 C
1968
11.3 C
+0.03 C
1969
11.0 C
-0.20 C
1970
11.1 C
-0.10 C
1971
9.8 C
-1.46 C
1972
10.4 C
-0.84 C
The fitted trend in annual mean temperature here over 1910 to 1972 is -0.01 C (-0.10 to 0.08) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.02 F (-0.19 to 0.15) per decade. The slope is a straight line fitted to 49 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Dudleys
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.01 C (-0.10 to 0.08) per decade
-0.02 F (-0.19 to 0.15) per decade
1910 to 1972
49
Not clearly different from zero
Mean daily maximum
0.10 C (-0.03 to 0.24) per decade
0.2 F (-0.1 to 0.4) per decade
1910 to 1972
49
Not clearly different from zero
Mean daily minimum
-0.12 C (-0.22 to -0.02) per decade
-0.22 F (-0.40 to -0.04) per decade
1910 to 1972
49
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
1908 to 1976
Yearly extremes at Dudleys: 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)
1933
37.2 C (99.0 F)
69
Coldest night (TNn)
-23.3 C (-9.9 F)
1937
-12.8 C (9.0 F)
69
Wettest day (Rx1day)
213.6 mm (8.4 in)
1950
74.4 mm (2.9 in)
69
Wettest five days (Rx5day)
417.1 mm (16.4 in)
1950
155.2 mm (6.1 in)
69
Longest dry spell (CDD)
168 days
1915
87 days
69
Hottest day (TXx)
The hottest day of the year at Dudleys, 1908 to 1976. The record is 41.7 C (107.1 F) in 1933, marked on the chart; the median year is 37.2 C (99.0 F).
Hottest day (TXx) at Dudleys by year
Year
Hottest day (TXx)
1908
37.2 C (99.0 F)
1909
34.4 C (93.9 F)
1910
35.6 C (96.1 F)
1911
36.1 C (97.0 F)
1912
35.0 C (95.0 F)
1913
36.1 C (97.0 F)
1914
35.6 C (96.1 F)
1915
36.1 C (97.0 F)
1916
35.0 C (95.0 F)
1917
36.1 C (97.0 F)
1918
35.6 C (96.1 F)
1919
36.7 C (98.1 F)
1920
38.3 C (100.9 F)
1921
35.6 C (96.1 F)
1922
35.6 C (96.1 F)
1923
35.6 C (96.1 F)
1924
36.1 C (97.0 F)
1925
37.8 C (100.0 F)
1926
38.3 C (100.9 F)
1927
35.6 C (96.1 F)
1928
35.6 C (96.1 F)
1929
37.2 C (99.0 F)
1930
38.3 C (100.9 F)
1931
41.1 C (106.0 F)
1932
37.8 C (100.0 F)
1933
41.7 C (107.1 F)
1934
38.9 C (102.0 F)
1935
36.7 C (98.1 F)
1936
37.2 C (99.0 F)
1937
38.9 C (102.0 F)
1938
38.9 C (102.0 F)
1939
40.0 C (104.0 F)
1940
38.3 C (100.9 F)
1941
38.9 C (102.0 F)
1942
40.0 C (104.0 F)
1943
31.7 C (89.1 F)
1944
28.9 C (84.0 F)
1945
37.2 C (99.0 F)
1946
37.2 C (99.0 F)
1947
36.1 C (97.0 F)
1948
36.7 C (98.1 F)
1949
37.2 C (99.0 F)
1950
39.4 C (102.9 F)
1951
37.8 C (100.0 F)
1952
36.1 C (97.0 F)
1953
37.8 C (100.0 F)
1954
37.8 C (100.0 F)
1955
40.6 C (105.1 F)
1956
37.2 C (99.0 F)
1957
36.7 C (98.1 F)
1958
37.2 C (99.0 F)
1959
39.4 C (102.9 F)
1960
41.1 C (106.0 F)
1961
40.0 C (104.0 F)
1962
36.1 C (97.0 F)
1963
36.7 C (98.1 F)
1964
36.7 C (98.1 F)
1965
35.6 C (96.1 F)
1966
37.2 C (99.0 F)
1967
37.8 C (100.0 F)
1968
36.7 C (98.1 F)
1969
37.2 C (99.0 F)
1970
37.8 C (100.0 F)
1971
37.8 C (100.0 F)
1972
41.1 C (106.0 F)
1973
37.2 C (99.0 F)
1974
22.2 C (72.0 F)
1975
38.9 C (102.0 F)
1976
25.6 C (78.1 F)
Coldest night (TNn)
The coldest night of the year at Dudleys, 1908 to 1976. The record is -23.3 C (-9.9 F) in 1937, marked on the chart; the median year is -12.8 C (9.0 F).
Coldest night (TNn) at Dudleys by year
Year
Coldest night (TNn)
1908
-13.3 C (8.1 F)
1909
-15.0 C (5.0 F)
1910
-16.7 C (1.9 F)
1911
-17.8 C (0.0 F)
1912
-15.6 C (3.9 F)
1913
-16.7 C (1.9 F)
1914
-8.3 C (17.1 F)
1915
-10.6 C (12.9 F)
1916
-18.3 C (-0.9 F)
1917
-20.0 C (-4.0 F)
1918
-9.4 C (15.1 F)
1919
-12.2 C (10.0 F)
1920
-11.1 C (12.0 F)
1921
-11.7 C (10.9 F)
1922
-18.3 C (-0.9 F)
1923
-13.3 C (8.1 F)
1924
-17.2 C (1.0 F)
1925
-6.7 C (19.9 F)
1926
-12.8 C (9.0 F)
1927
-6.7 C (19.9 F)
1928
-10.6 C (12.9 F)
1929
-16.1 C (3.0 F)
1930
-18.9 C (-2.0 F)
1931
-12.8 C (9.0 F)
1932
-17.2 C (1.0 F)
1933
-15.6 C (3.9 F)
1934
-6.7 C (19.9 F)
1935
-17.2 C (1.0 F)
1936
-12.8 C (9.0 F)
1937
-23.3 C (-9.9 F)
1938
-7.8 C (18.0 F)
1939
-16.1 C (3.0 F)
1940
-11.1 C (12.0 F)
1941
-7.2 C (19.0 F)
1942
-8.9 C (16.0 F)
1943
-12.2 C (10.0 F)
1944
-9.4 C (15.1 F)
1945
-11.1 C (12.0 F)
1946
-14.4 C (6.1 F)
1947
-10.0 C (14.0 F)
1948
-14.4 C (6.1 F)
1949
-20.6 C (-5.1 F)
1950
-20.0 C (-4.0 F)
1951
-11.1 C (12.0 F)
1952
-15.0 C (5.0 F)
1953
-10.6 C (12.9 F)
1954
-11.7 C (10.9 F)
1955
-12.8 C (9.0 F)
1956
-9.4 C (15.1 F)
1957
-16.7 C (1.9 F)
1958
-10.0 C (14.0 F)
1959
-11.7 C (10.9 F)
1960
-13.3 C (8.1 F)
1961
-10.6 C (12.9 F)
1962
-14.4 C (6.1 F)
1963
-11.1 C (12.0 F)
1964
-10.6 C (12.9 F)
1965
-10.6 C (12.9 F)
1966
-11.1 C (12.0 F)
1967
-16.7 C (1.9 F)
1968
-16.7 C (1.9 F)
1969
-16.1 C (3.0 F)
1970
-10.0 C (14.0 F)
1971
-13.3 C (8.1 F)
1972
-23.3 C (-9.9 F)
1973
-12.2 C (10.0 F)
1974
-12.2 C (10.0 F)
1975
-7.2 C (19.0 F)
1976
-11.1 C (12.0 F)
Wettest day (Rx1day)
The wettest day of the year at Dudleys, 1908 to 1976. The record is 213.6 mm (8.4 in) in 1950, marked on the chart; the median year is 74.4 mm (2.9 in).
Wettest day (Rx1day) at Dudleys by year
Year
Wettest day (Rx1day)
1908
58.4 mm (2.3 in)
1909
118.9 mm (4.7 in)
1910
36.1 mm (1.4 in)
1911
102.4 mm (4.0 in)
1912
44.5 mm (1.8 in)
1913
70.6 mm (2.8 in)
1914
85.9 mm (3.4 in)
1915
55.4 mm (2.2 in)
1916
76.2 mm (3.0 in)
1917
101.6 mm (4.0 in)
1918
82.6 mm (3.3 in)
1919
69.3 mm (2.7 in)
1920
74.4 mm (2.9 in)
1921
80.8 mm (3.2 in)
1922
77.2 mm (3.0 in)
1923
54.4 mm (2.1 in)
1924
69.1 mm (2.7 in)
1925
72.9 mm (2.9 in)
1926
114.3 mm (4.5 in)
1927
97.8 mm (3.9 in)
1928
95.0 mm (3.7 in)
1929
68.6 mm (2.7 in)
1930
67.8 mm (2.7 in)
1931
91.4 mm (3.6 in)
1932
67.6 mm (2.7 in)
1933
98.6 mm (3.9 in)
1934
84.3 mm (3.3 in)
1935
105.4 mm (4.1 in)
1936
66.5 mm (2.6 in)
1937
124.7 mm (4.9 in)
1938
90.9 mm (3.6 in)
1939
67.3 mm (2.6 in)
1940
66.8 mm (2.6 in)
1941
61.0 mm (2.4 in)
1942
81.8 mm (3.2 in)
1943
86.9 mm (3.4 in)
1944
80.3 mm (3.2 in)
1945
92.5 mm (3.6 in)
1946
55.4 mm (2.2 in)
1947
52.3 mm (2.1 in)
1948
73.9 mm (2.9 in)
1949
52.8 mm (2.1 in)
1950
213.6 mm (8.4 in)
1951
74.2 mm (2.9 in)
1952
94.2 mm (3.7 in)
1953
70.9 mm (2.8 in)
1954
89.7 mm (3.5 in)
1955
160.3 mm (6.3 in)
1956
91.7 mm (3.6 in)
1957
58.2 mm (2.3 in)
1958
69.3 mm (2.7 in)
1959
87.4 mm (3.4 in)
1960
70.9 mm (2.8 in)
1961
44.2 mm (1.7 in)
1962
104.6 mm (4.1 in)
1963
116.3 mm (4.6 in)
1964
73.4 mm (2.9 in)
1965
114.8 mm (4.5 in)
1966
66.3 mm (2.6 in)
1967
54.4 mm (2.1 in)
1968
58.7 mm (2.3 in)
1969
112.5 mm (4.4 in)
1970
72.9 mm (2.9 in)
1971
82.0 mm (3.2 in)
1972
74.4 mm (2.9 in)
1973
77.5 mm (3.1 in)
1974
53.3 mm (2.1 in)
1975
50.0 mm (2.0 in)
1976
11.2 mm (0.4 in)
Wettest five days (Rx5day)
The wettest five days of the year at Dudleys, 1908 to 1976. The record is 417.1 mm (16.4 in) in 1950, marked on the chart; the median year is 155.2 mm (6.1 in).
Wettest five days (Rx5day) at Dudleys by year
Year
Wettest five days (Rx5day)
1908
58.4 mm (2.3 in)
1909
225.1 mm (8.9 in)
1910
95.7 mm (3.8 in)
1911
268.5 mm (10.6 in)
1912
79.5 mm (3.1 in)
1913
129.5 mm (5.1 in)
1914
231.0 mm (9.1 in)
1915
136.4 mm (5.4 in)
1916
138.5 mm (5.5 in)
1917
281.4 mm (11.1 in)
1918
193.2 mm (7.6 in)
1919
138.5 mm (5.5 in)
1920
126.5 mm (5.0 in)
1921
240.3 mm (9.5 in)
1922
167.7 mm (6.6 in)
1923
120.7 mm (4.8 in)
1924
96.6 mm (3.8 in)
1925
130.3 mm (5.1 in)
1926
206.2 mm (8.1 in)
1927
162.1 mm (6.4 in)
1928
227.3 mm (8.9 in)
1929
106.8 mm (4.2 in)
1930
147.6 mm (5.8 in)
1931
277.1 mm (10.9 in)
1932
132.9 mm (5.2 in)
1933
207.3 mm (8.2 in)
1934
114.3 mm (4.5 in)
1935
143.0 mm (5.6 in)
1936
220.7 mm (8.7 in)
1937
267.7 mm (10.5 in)
1938
199.6 mm (7.9 in)
1939
145.8 mm (5.7 in)
1940
209.3 mm (8.2 in)
1941
237.3 mm (9.3 in)
1942
172.3 mm (6.8 in)
1943
195.6 mm (7.7 in)
1944
141.0 mm (5.6 in)
1945
227.9 mm (9.0 in)
1946
145.5 mm (5.7 in)
1947
47.0 mm (1.9 in)
1948
95.7 mm (3.8 in)
1949
109.3 mm (4.3 in)
1950
417.1 mm (16.4 in)
1951
178.3 mm (7.0 in)
1952
193.4 mm (7.6 in)
1953
90.7 mm (3.6 in)
1954
142.8 mm (5.6 in)
1955
405.3 mm (16.0 in)
1956
146.0 mm (5.7 in)
1957
131.8 mm (5.2 in)
1958
192.6 mm (7.6 in)
1959
155.2 mm (6.1 in)
1960
153.7 mm (6.1 in)
1961
104.9 mm (4.1 in)
1962
249.4 mm (9.8 in)
1963
316.5 mm (12.5 in)
1964
203.9 mm (8.0 in)
1965
193.5 mm (7.6 in)
1966
179.0 mm (7.0 in)
1967
158.5 mm (6.2 in)
1968
82.3 mm (3.2 in)
1969
270.0 mm (10.6 in)
1970
157.8 mm (6.2 in)
1971
118.1 mm (4.6 in)
1972
129.0 mm (5.1 in)
1973
179.8 mm (7.1 in)
1974
118.3 mm (4.7 in)
1975
136.4 mm (5.4 in)
1976
12.5 mm (0.5 in)
Longest dry spell (CDD)
The longest dry spell of the year at Dudleys, 1908 to 1976. The record is 168 days in 1915, marked on the chart; the median year is 87 days.
Longest dry spell (CDD) at Dudleys by year
Year
Longest dry spell (CDD)
1908
37 days
1909
89 days
1910
69 days
1911
116 days
1912
82 days
1913
48 days
1914
84 days
1915
168 days
1916
82 days
1917
92 days
1918
120 days
1919
121 days
1920
59 days
1921
94 days
1922
62 days
1923
98 days
1924
145 days
1925
93 days
1926
146 days
1927
87 days
1928
140 days
1929
112 days
1930
100 days
1931
56 days
1932
111 days
1933
145 days
1934
108 days
1935
123 days
1936
87 days
1937
84 days
1938
84 days
1939
113 days
1940
116 days
1941
91 days
1942
31 days
1943
31 days
1944
19 days
1945
48 days
1946
59 days
1947
102 days
1948
109 days
1949
70 days
1950
98 days
1951
53 days
1952
36 days
1953
126 days
1954
147 days
1955
163 days
1956
85 days
1957
99 days
1958
86 days
1959
91 days
1960
92 days
1961
74 days
1962
75 days
1963
85 days
1964
61 days
1965
81 days
1966
52 days
1967
104 days
1968
65 days
1969
88 days
1970
114 days
1971
70 days
1972
81 days
1973
65 days
1974
23 days
1975
50 days
1976
22 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
49 years with a frost
Across 49 years with a frost, the median last spring frost at Dudleys falls on 30 May and the median first autumn frost on 25 September, which leaves a median of 121 days between them.
Fitted over all years, the growing season changes by +1.0 days per decade at this station.
Frost dates and growing season at Dudleys
Measure
Median, all years
Earliest period
Recent period (1931 to 1972)
Recent against earliest
Fitted trend
Last spring frost
30 May
n/a
31 May
n/a
+1.4 days per decade
First autumn frost
25 September
n/a
3 October
n/a
+2.4 days per decade
Growing days
121 days
n/a
122 days
n/a
+1.0 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
60 years, 1909 to 1972
A day with at least 77.1 mm (3.0 in) of rain is expected about once in 2 years. A day with at least 176.3 mm (6.9 in) of rain is expected about once in 100 years.
Rainfall return levels at Dudleys: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
77.1 mm (3.0 in)
5 years
100.6 mm (4.0 in)
10 years
117.3 mm (4.6 in)
25 years
139.8 mm (5.5 in)
50 years
157.6 mm (6.2 in)
100 years
176.3 mm (6.9 in)
Longer than the 60 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, 60 years of values from 1909 to 1972.
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: 213.6 mm (8.4 in) in 1950; 160.3 mm (6.3 in) in 1955; 124.7 mm (4.9 in) in 1937.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Dudleys, at 1939. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1939 ran 0.2 C (0.4 F) higher than in the years before (possible change).
Suspected changes in the annual mean temperature at Dudleys, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1939
+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 Dudleys standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Dudleys 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.