Record envelope, standing records and threshold days for Clayton (USC00281708), New Jersey, United States, with 67 years of record.
Key Facts for Clayton
Clayton (USC00281708) is a weather station in New Jersey, United States at 39.65 latitude and -75.10 longitude, 37 m (121 ft) above sea level.
The station reports from 1896 to 1962, 67 years of record.
1,464 records set at Clayton still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Clayton tied a daily record low maximum temperature of 24.4 C (75.9 F) on 30 July 1962.
About the Station
Location: New Jersey, United States, 39.65 latitude, -75.10 longitude.
Elevation: 37 m (121 ft).
Period of record: 1896 to 1962, 67 years.
Eligible elements: tmax, tmin, prcp.
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 Clayton. 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 Clayton, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
23.3 C (73.9 F)
-24.4 C (-11.9 F)
n/a
n/a
Feb
22.8 C (73.0 F)
-25.0 C (-13.0 F)
n/a
n/a
Mar
31.1 C (88.0 F)
-15.0 C (5.0 F)
n/a
n/a
Apr
34.4 C (93.9 F)
-6.7 C (19.9 F)
n/a
n/a
May
37.2 C (99.0 F)
-1.1 C (30.0 F)
n/a
n/a
Jun
38.3 C (100.9 F)
3.3 C (37.9 F)
n/a
n/a
Jul
40.0 C (104.0 F)
6.7 C (44.1 F)
n/a
n/a
Aug
41.1 C (106.0 F)
6.1 C (43.0 F)
n/a
n/a
Sep
37.2 C (99.0 F)
0.0 C (32.0 F)
n/a
n/a
Oct
35.0 C (95.0 F)
-5.6 C (21.9 F)
n/a
n/a
Nov
27.8 C (82.0 F)
-13.3 C (8.1 F)
n/a
n/a
Dec
21.7 C (71.1 F)
-19.4 C (-2.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Clayton still stand. 1904 holds the most, with 48.
Standing records at Clayton by the year they were set
Year set
Standing records
1896
17
1897
12
1898
29
1899
40
1900
46
1901
30
1902
19
1903
32
1904
48
1905
28
1906
25
1907
38
1908
29
1909
34
1910
21
1911
31
1912
31
1913
29
1914
43
1915
25
1916
28
1917
29
1918
37
1919
29
1920
20
1921
37
1924
6
1925
15
1926
9
1928
14
1930
10
1931
20
1932
5
1938
11
1939
22
1940
33
1941
31
1942
32
1943
21
1944
17
1945
35
1946
22
1947
28
1948
25
1949
22
1950
29
1951
17
1952
25
1953
23
1954
11
1955
12
1956
29
1957
28
1958
13
1959
31
1960
30
1961
39
1962
12
All-Time Record Progression
3 new records
3 all-time records were set at Clayton between 6 August 1944 and 26 June 1952. Each dot is a new record.
When Clayton set new all-time records
Date
Kind
Detail
1944-08-06
Record high minimum temperature
Record high minimum temperature 26.1 C (79.0 F)
1948-08-26
Record high maximum temperature
Record high maximum temperature 41.1 C (106.0 F)
1952-06-26
Record high minimum temperature
Record high minimum temperature 27.2 C (81.0 F)
Wettest Day of Each Month
Sep: 267.2 mm (10.5 in)
The wettest day on record for each calendar month at Clayton. The most was 267.2 mm (10.5 in) on 1 September 1940.
Record daily precipitation for each month at Clayton
Month
Record daily precipitation (mm)
Date
Jan
82.0 mm (3.2 in)
15 January 1918
Feb
57.2 mm (2.3 in)
24 February 1909
Mar
68.6 mm (2.7 in)
6 March 1959
Apr
64.3 mm (2.5 in)
14 April 1909
May
65.0 mm (2.6 in)
28 May 1918
Jun
88.1 mm (3.5 in)
16 June 1908
Jul
125.2 mm (4.9 in)
28 July 1897
Aug
155.2 mm (6.1 in)
12 August 1901
Sep
267.2 mm (10.5 in)
1 September 1940
Oct
69.3 mm (2.7 in)
20 October 1910
Nov
77.5 mm (3.1 in)
25 November 1950
Dec
66.0 mm (2.6 in)
22 December 1916
Period of Record Coverage
1896 to 1962
Complete yearUnder 90 percent of days
58 years of record at Clayton, 1896 to 1962. 15 years have data for under 90 percent of days and are left out of rankings: 1896, 1905, 1914, 1921, 1924, 1925, 1926, 1928 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 36 complete years at Clayton, 1897 to 1961. Blue stripes are years cooler than the station's own mean of 12.1 C (53.8 F); red stripes are warmer. The coolest year was 1904, at 10.0 C (50.0 F), and the warmest was 1949, at 13.7 C (56.7 F). The strongest colour marks a difference of 2.1 C (3.8 F).
Annual mean temperature at Clayton as warming stripes, 1897 to 1961
Year
Annual mean temperature
Difference from the station mean
1897
12.0 C
-0.13 C
1898
12.3 C
+0.24 C
1899
11.7 C
-0.38 C
1900
12.6 C
+0.47 C
1901
11.4 C
-0.74 C
1902
11.7 C
-0.42 C
1904
10.0 C
-2.10 C
1906
12.3 C
+0.24 C
1907
10.7 C
-1.38 C
1908
12.1 C
+0.01 C
1909
11.9 C
-0.22 C
1910
11.8 C
-0.34 C
1911
12.3 C
+0.23 C
1912
11.5 C
-0.62 C
1913
12.7 C
+0.63 C
1915
12.1 C
+0.01 C
1918
11.9 C
-0.19 C
1920
11.3 C
-0.83 C
1939
12.6 C
+0.45 C
1940
10.8 C
-1.31 C
1944
12.5 C
+0.44 C
1947
12.3 C
+0.18 C
1948
12.3 C
+0.24 C
1949
13.7 C
+1.63 C
1950
12.2 C
+0.14 C
1951
12.8 C
+0.73 C
1952
12.8 C
+0.70 C
1953
12.8 C
+0.65 C
1954
12.6 C
+0.46 C
1955
12.5 C
+0.43 C
1956
12.3 C
+0.17 C
1957
13.0 C
+0.89 C
1958
11.4 C
-0.68 C
1959
13.2 C
+1.05 C
1960
11.8 C
-0.34 C
1961
11.7 C
-0.41 C
The annual mean temperature here has risen by 0.13 C (0.03 to 0.23) per decade over 1897 to 1961. In Fahrenheit: 0.2 F (0.1 to 0.4) per decade. The slope is a straight line fitted to 36 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Clayton
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.13 C (0.03 to 0.23) per decade
0.2 F (0.1 to 0.4) per decade
1897 to 1961
36
Rise
Mean daily maximum
0.11 C (0.00 to 0.23) per decade
0.20 F (0.00 to 0.41) per decade
1897 to 1961
36
Not clearly different from zero
Mean daily minimum
0.14 C (0.04 to 0.25) per decade
0.3 F (0.1 to 0.4) per decade
1897 to 1961
36
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
1896 to 1962
Yearly extremes at Clayton: 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)
1948
36.1 C (97.0 F)
58
Coldest night (TNn)
-25.0 C (-13.0 F)
1899
-16.1 C (3.0 F)
58
Wettest day (Rx1day)
267.2 mm (10.5 in)
1940
68.1 mm (2.7 in)
58
Wettest five days (Rx5day)
321.3 mm (12.6 in)
1940
96.0 mm (3.8 in)
58
Longest dry spell (CDD)
37 days
1903
18 days
58
Hottest day (TXx)
The hottest day of the year at Clayton, 1896 to 1962. The record is 41.1 C (106.0 F) in 1948, marked on the chart; the median year is 36.1 C (97.0 F).
Hottest day (TXx) at Clayton by year
Year
Hottest day (TXx)
1896
24.4 C (75.9 F)
1897
35.0 C (95.0 F)
1898
38.9 C (102.0 F)
1899
37.8 C (100.0 F)
1900
38.9 C (102.0 F)
1901
40.0 C (104.0 F)
1902
35.0 C (95.0 F)
1903
34.4 C (93.9 F)
1904
35.6 C (96.1 F)
1905
36.1 C (97.0 F)
1906
33.9 C (93.0 F)
1907
33.9 C (93.0 F)
1908
36.7 C (98.1 F)
1909
35.6 C (96.1 F)
1910
33.9 C (93.0 F)
1911
38.9 C (102.0 F)
1912
35.0 C (95.0 F)
1913
37.2 C (99.0 F)
1914
36.7 C (98.1 F)
1915
36.7 C (98.1 F)
1916
37.2 C (99.0 F)
1917
37.8 C (100.0 F)
1918
40.6 C (105.1 F)
1919
38.9 C (102.0 F)
1920
34.4 C (93.9 F)
1921
36.7 C (98.1 F)
1924
28.3 C (82.9 F)
1925
30.0 C (86.0 F)
1926
38.9 C (102.0 F)
1928
35.0 C (95.0 F)
1930
30.6 C (87.1 F)
1931
39.4 C (102.9 F)
1932
33.9 C (93.0 F)
1938
35.0 C (95.0 F)
1939
35.0 C (95.0 F)
1940
37.8 C (100.0 F)
1941
37.2 C (99.0 F)
1942
35.6 C (96.1 F)
1943
36.7 C (98.1 F)
1944
36.1 C (97.0 F)
1945
35.6 C (96.1 F)
1946
35.6 C (96.1 F)
1947
36.1 C (97.0 F)
1948
41.1 C (106.0 F)
1949
37.8 C (100.0 F)
1950
35.0 C (95.0 F)
1951
35.0 C (95.0 F)
1952
37.8 C (100.0 F)
1953
38.3 C (100.9 F)
1954
38.9 C (102.0 F)
1955
37.2 C (99.0 F)
1956
36.7 C (98.1 F)
1957
38.3 C (100.9 F)
1958
33.3 C (91.9 F)
1959
36.1 C (97.0 F)
1960
33.3 C (91.9 F)
1961
33.3 C (91.9 F)
1962
35.0 C (95.0 F)
Coldest night (TNn)
The coldest night of the year at Clayton, 1896 to 1962. The record is -25.0 C (-13.0 F) in 1899, marked on the chart; the median year is -16.1 C (3.0 F).
Coldest night (TNn) at Clayton by year
Year
Coldest night (TNn)
1896
-17.2 C (1.0 F)
1897
-17.2 C (1.0 F)
1898
-15.6 C (3.9 F)
1899
-25.0 C (-13.0 F)
1900
-16.1 C (3.0 F)
1901
-16.1 C (3.0 F)
1902
-13.9 C (7.0 F)
1903
-13.9 C (7.0 F)
1904
-24.4 C (-11.9 F)
1905
-19.4 C (-2.9 F)
1906
-15.0 C (5.0 F)
1907
-18.3 C (-0.9 F)
1908
-16.1 C (3.0 F)
1909
-16.1 C (3.0 F)
1910
-19.4 C (-2.9 F)
1911
-14.4 C (6.1 F)
1912
-23.3 C (-9.9 F)
1913
-15.0 C (5.0 F)
1914
-18.3 C (-0.9 F)
1915
-12.8 C (9.0 F)
1916
-17.8 C (0.0 F)
1917
-19.4 C (-2.9 F)
1918
-21.7 C (-7.1 F)
1919
-17.2 C (1.0 F)
1920
-18.9 C (-2.0 F)
1921
-15.0 C (5.0 F)
1924
-15.6 C (3.9 F)
1925
-21.1 C (-6.0 F)
1926
-15.0 C (5.0 F)
1928
-21.7 C (-7.1 F)
1930
-15.0 C (5.0 F)
1931
-11.1 C (12.0 F)
1932
-9.4 C (15.1 F)
1938
-13.3 C (8.1 F)
1939
-13.3 C (8.1 F)
1940
-15.6 C (3.9 F)
1941
-12.8 C (9.0 F)
1942
-24.4 C (-11.9 F)
1943
-16.7 C (1.9 F)
1944
-13.9 C (7.0 F)
1945
-17.2 C (1.0 F)
1946
-10.0 C (14.0 F)
1947
-16.7 C (1.9 F)
1948
-18.9 C (-2.0 F)
1949
-12.2 C (10.0 F)
1950
-13.9 C (7.0 F)
1951
-14.4 C (6.1 F)
1952
-13.3 C (8.1 F)
1953
-13.9 C (7.0 F)
1954
-20.6 C (-5.1 F)
1955
-16.1 C (3.0 F)
1956
-10.0 C (14.0 F)
1957
-18.3 C (-0.9 F)
1958
-16.1 C (3.0 F)
1959
-16.7 C (1.9 F)
1960
-18.9 C (-2.0 F)
1961
-20.6 C (-5.1 F)
1962
-17.2 C (1.0 F)
Wettest day (Rx1day)
The wettest day of the year at Clayton, 1896 to 1962. The record is 267.2 mm (10.5 in) in 1940, marked on the chart; the median year is 68.1 mm (2.7 in).
Wettest day (Rx1day) at Clayton by year
Year
Wettest day (Rx1day)
1896
20.8 mm (0.8 in)
1897
125.2 mm (4.9 in)
1898
54.1 mm (2.1 in)
1899
66.5 mm (2.6 in)
1900
50.0 mm (2.0 in)
1901
155.2 mm (6.1 in)
1902
50.8 mm (2.0 in)
1903
99.1 mm (3.9 in)
1904
104.4 mm (4.1 in)
1905
70.6 mm (2.8 in)
1906
113.8 mm (4.5 in)
1907
70.4 mm (2.8 in)
1908
88.1 mm (3.5 in)
1909
64.3 mm (2.5 in)
1910
69.3 mm (2.7 in)
1911
75.7 mm (3.0 in)
1912
65.5 mm (2.6 in)
1913
66.8 mm (2.6 in)
1914
91.7 mm (3.6 in)
1915
85.1 mm (3.4 in)
1916
66.0 mm (2.6 in)
1917
65.0 mm (2.6 in)
1918
82.0 mm (3.2 in)
1919
127.5 mm (5.0 in)
1920
87.9 mm (3.5 in)
1921
45.7 mm (1.8 in)
1924
40.6 mm (1.6 in)
1925
33.0 mm (1.3 in)
1926
40.6 mm (1.6 in)
1928
54.6 mm (2.1 in)
1930
25.4 mm (1.0 in)
1931
47.0 mm (1.9 in)
1932
41.4 mm (1.6 in)
1938
81.3 mm (3.2 in)
1939
142.2 mm (5.6 in)
1940
267.2 mm (10.5 in)
1941
42.4 mm (1.7 in)
1942
59.7 mm (2.4 in)
1943
48.3 mm (1.9 in)
1944
101.6 mm (4.0 in)
1945
78.7 mm (3.1 in)
1946
81.8 mm (3.2 in)
1947
36.1 mm (1.4 in)
1948
103.9 mm (4.1 in)
1949
50.0 mm (2.0 in)
1950
77.5 mm (3.1 in)
1951
54.6 mm (2.1 in)
1952
85.9 mm (3.4 in)
1953
51.6 mm (2.0 in)
1954
84.3 mm (3.3 in)
1955
85.6 mm (3.4 in)
1956
60.5 mm (2.4 in)
1957
37.8 mm (1.5 in)
1958
88.4 mm (3.5 in)
1959
88.9 mm (3.5 in)
1960
164.8 mm (6.5 in)
1961
34.3 mm (1.4 in)
1962
36.8 mm (1.4 in)
Wettest five days (Rx5day)
The wettest five days of the year at Clayton, 1896 to 1962. The record is 321.3 mm (12.6 in) in 1940, marked on the chart; the median year is 96.0 mm (3.8 in).
Wettest five days (Rx5day) at Clayton by year
Year
Wettest five days (Rx5day)
1896
26.2 mm (1.0 in)
1897
165.6 mm (6.5 in)
1898
78.5 mm (3.1 in)
1899
109.1 mm (4.3 in)
1900
57.9 mm (2.3 in)
1901
168.4 mm (6.6 in)
1902
87.1 mm (3.4 in)
1903
100.4 mm (4.0 in)
1904
173.5 mm (6.8 in)
1905
75.4 mm (3.0 in)
1906
140.4 mm (5.5 in)
1907
103.3 mm (4.1 in)
1908
175.5 mm (6.9 in)
1909
75.7 mm (3.0 in)
1910
87.6 mm (3.4 in)
1911
182.6 mm (7.2 in)
1912
133.3 mm (5.2 in)
1913
97.5 mm (3.8 in)
1914
93.2 mm (3.7 in)
1915
128.6 mm (5.1 in)
1916
41.4 mm (1.6 in)
1917
94.5 mm (3.7 in)
1918
98.8 mm (3.9 in)
1919
117.8 mm (4.6 in)
1920
87.9 mm (3.5 in)
1921
62.7 mm (2.5 in)
1924
57.7 mm (2.3 in)
1925
48.2 mm (1.9 in)
1926
40.6 mm (1.6 in)
1928
108.0 mm (4.3 in)
1930
43.7 mm (1.7 in)
1931
77.7 mm (3.1 in)
1932
41.4 mm (1.6 in)
1938
186.6 mm (7.3 in)
1939
161.0 mm (6.3 in)
1940
321.3 mm (12.6 in)
1941
73.2 mm (2.9 in)
1942
89.7 mm (3.5 in)
1943
115.7 mm (4.6 in)
1944
94.5 mm (3.7 in)
1945
130.6 mm (5.1 in)
1946
151.6 mm (6.0 in)
1947
60.8 mm (2.4 in)
1948
169.7 mm (6.7 in)
1949
68.3 mm (2.7 in)
1950
113.8 mm (4.5 in)
1951
90.9 mm (3.6 in)
1952
149.2 mm (5.9 in)
1953
84.9 mm (3.3 in)
1954
86.6 mm (3.4 in)
1955
134.4 mm (5.3 in)
1956
109.9 mm (4.3 in)
1957
69.1 mm (2.7 in)
1958
138.4 mm (5.4 in)
1959
117.9 mm (4.6 in)
1960
228.3 mm (9.0 in)
1961
78.8 mm (3.1 in)
1962
70.3 mm (2.8 in)
Longest dry spell (CDD)
The longest dry spell of the year at Clayton, 1896 to 1962. The record is 37 days in 1903, marked on the chart; the median year is 18 days.
Longest dry spell (CDD) at Clayton by year
Year
Longest dry spell (CDD)
1896
16 days
1897
17 days
1898
18 days
1899
21 days
1900
16 days
1901
21 days
1902
16 days
1903
37 days
1904
20 days
1905
30 days
1906
9 days
1907
18 days
1908
24 days
1909
23 days
1910
32 days
1911
15 days
1912
26 days
1913
22 days
1914
22 days
1915
13 days
1916
11 days
1917
22 days
1918
15 days
1919
11 days
1920
15 days
1921
13 days
1924
14 days
1925
11 days
1926
15 days
1928
18 days
1930
14 days
1931
27 days
1932
12 days
1938
16 days
1939
18 days
1940
14 days
1941
32 days
1942
18 days
1943
32 days
1944
25 days
1945
19 days
1946
17 days
1947
18 days
1948
19 days
1949
18 days
1950
24 days
1951
13 days
1952
22 days
1953
21 days
1954
15 days
1955
26 days
1956
16 days
1957
20 days
1958
15 days
1959
27 days
1960
18 days
1961
14 days
1962
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
36 years with a frost
Across 36 years with a frost, the median last spring frost at Clayton falls on 16 April and the median first autumn frost on 22 October, which leaves a median of 185 days between them.
Fitted over all years, the growing season changes by +2.0 days per decade at this station.
Frost dates and growing season at Clayton
Measure
Median, all years
Earliest period
Recent period (1904 to 1961)
Recent against earliest
Fitted trend
Last spring frost
16 April
n/a
16 April
n/a
-0.6 days per decade
First autumn frost
22 October
n/a
21 October
n/a
+1.3 days per decade
Growing days
185 days
n/a
185 days
n/a
+2.0 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
40 years, 1897 to 1961
A day with at least 71.5 mm (2.8 in) of rain is expected about once in 2 years. A day with at least 249.5 mm (9.8 in) of rain is expected about once in 100 years.
Rainfall return levels at Clayton: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
71.5 mm (2.8 in)
5 years
104.1 mm (4.1 in)
10 years
130.7 mm (5.1 in)
25 years
171.4 mm (6.7 in)
50 years
207.5 mm (8.2 in)
Longer than the 40 years of record
100 years
249.5 mm (9.8 in)
Longer than the 40 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, 40 years of values from 1897 to 1961.
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: 267.2 mm (10.5 in) in 1940; 164.8 mm (6.5 in) in 1960; 155.2 mm (6.1 in) in 1901.
Download the Data
Data for Clayton standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Clayton 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.