Record envelope, standing records and threshold days for Wilmington Wb City (USC00319462), North Carolina, United States, with 82 years of record.
Key Facts for Wilmington Wb City
Wilmington Wb City (USC00319462) is a weather station in North Carolina, United States at 34.23 latitude and -77.95 longitude, 14 m (46 ft) above sea level.
The station reports from 1870 to 1951, 82 years of record.
1,464 records set at Wilmington Wb City still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Wilmington Wb City set a daily record high minimum temperature of 25.0 C (77.0 F) on 18 August 1951.
About the Station
Location: North Carolina, United States, 34.23 latitude, -77.95 longitude.
Elevation: 14 m (46 ft).
Period of record: 1870 to 1951, 82 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 Wilmington Wb City. 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 Wilmington Wb City, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
26.7 C (80.1 F)
-12.8 C (9.0 F)
n/a
n/a
Feb
27.2 C (81.0 F)
-15.0 C (5.0 F)
n/a
n/a
Mar
34.4 C (93.9 F)
-6.7 C (19.9 F)
n/a
n/a
Apr
33.9 C (93.0 F)
-2.2 C (28.0 F)
n/a
n/a
May
36.1 C (97.0 F)
3.3 C (37.9 F)
n/a
n/a
Jun
37.8 C (100.0 F)
10.6 C (51.1 F)
n/a
n/a
Jul
39.4 C (102.9 F)
12.2 C (54.0 F)
n/a
n/a
Aug
38.3 C (100.9 F)
13.3 C (55.9 F)
n/a
n/a
Sep
37.8 C (100.0 F)
5.6 C (42.1 F)
n/a
n/a
Oct
33.9 C (93.0 F)
-0.6 C (30.9 F)
n/a
n/a
Nov
28.3 C (82.9 F)
-8.9 C (16.0 F)
n/a
n/a
Dec
26.7 C (80.1 F)
-14.4 C (6.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Wilmington Wb City still stand. 1876 holds the most, with 43.
Standing records at Wilmington Wb City by the year they were set
Year set
Standing records
1873
1
1874
22
1875
39
1876
43
1877
9
1878
17
1879
38
1880
38
1881
21
1882
12
1883
24
1884
17
1885
8
1886
24
1887
24
1888
13
1889
20
1890
32
1891
17
1892
13
1893
28
1894
16
1895
22
1896
24
1897
17
1898
20
1899
30
1900
25
1901
19
1902
10
1903
22
1904
10
1905
11
1906
23
1907
28
1908
12
1909
12
1910
17
1911
12
1912
21
1913
26
1914
21
1915
13
1916
7
1917
35
1918
23
1919
27
1920
21
1921
17
1922
19
1923
13
1924
19
1925
22
1926
14
1927
19
1928
12
1929
15
1930
14
1931
11
1932
22
1933
16
1934
17
1935
16
1936
17
1937
21
1938
12
1939
18
1940
18
1941
14
1942
15
1943
16
1944
11
1945
11
1946
10
1947
11
1948
13
1949
9
1950
31
1951
7
All-Time Record Progression
1 new records
1 all-time records were set at Wilmington Wb City between 29 September 1938 and 29 September 1938. Each dot is a new record.
When Wilmington Wb City set new all-time records
Date
Kind
Detail
1938-09-29
Record daily precipitation
Record daily precipitation 241.8 mm (9.5 in)
Wettest Day of Each Month
Sep: 241.8 mm (9.5 in)
The wettest day on record for each calendar month at Wilmington Wb City. The most was 241.8 mm (9.5 in) on 29 September 1938.
Record daily precipitation for each month at Wilmington Wb City
Month
Record daily precipitation (mm)
Date
Jan
97.5 mm (3.8 in)
18 January 1915
Feb
82.0 mm (3.2 in)
21 February 1888
Mar
130.0 mm (5.1 in)
10 March 1936
Apr
84.3 mm (3.3 in)
19 April 1951
May
72.4 mm (2.9 in)
13 May 1871
Jun
195.3 mm (7.7 in)
25 June 1945
Jul
186.2 mm (7.3 in)
15 July 1886
Aug
204.2 mm (8.0 in)
18 August 1879
Sep
241.8 mm (9.5 in)
29 September 1938
Oct
106.7 mm (4.2 in)
11 October 1882
Nov
97.5 mm (3.8 in)
29 November 1934
Dec
101.3 mm (4.0 in)
23 December 1941
Period of Record Coverage
1874 to 1951
Complete yearUnder 90 percent of days
78 years of record at Wilmington Wb City, 1874 to 1951. 2 years have data for under 90 percent of days and are left out of rankings: 1874, 1951.
Cooler than the station meanWarmer than the station mean
One stripe for each of 76 complete years at Wilmington Wb City, 1875 to 1950. Blue stripes are years cooler than the station's own mean of 17.5 C (63.4 F); red stripes are warmer. The coolest year was 1904, at 16.2 C (61.2 F), and the warmest was 1949, at 18.7 C (65.6 F). The strongest colour marks a difference of 1.3 C (2.3 F).
Annual mean temperature at Wilmington Wb City as warming stripes, 1875 to 1950
Year
Annual mean temperature
Difference from the station mean
1875
16.7 C
-0.73 C
1876
17.0 C
-0.49 C
1877
17.4 C
-0.03 C
1878
17.6 C
+0.09 C
1879
17.5 C
+0.06 C
1880
17.7 C
+0.28 C
1881
18.0 C
+0.50 C
1882
17.8 C
+0.38 C
1883
17.9 C
+0.45 C
1884
18.3 C
+0.83 C
1885
17.2 C
-0.30 C
1886
16.8 C
-0.65 C
1887
16.8 C
-0.62 C
1888
17.0 C
-0.50 C
1889
17.2 C
-0.28 C
1890
18.3 C
+0.79 C
1891
17.4 C
-0.07 C
1892
16.6 C
-0.89 C
1893
17.4 C
-0.04 C
1894
17.8 C
+0.32 C
1895
16.7 C
-0.78 C
1896
17.4 C
-0.04 C
1897
17.6 C
+0.15 C
1898
17.5 C
+0.07 C
1899
17.0 C
-0.46 C
1900
17.7 C
+0.19 C
1901
16.4 C
-1.10 C
1902
17.0 C
-0.42 C
1903
17.0 C
-0.47 C
1904
16.2 C
-1.24 C
1905
16.8 C
-0.65 C
1906
17.5 C
+0.04 C
1907
17.1 C
-0.37 C
1908
17.6 C
+0.14 C
1909
17.3 C
-0.18 C
1910
17.0 C
-0.47 C
1911
18.0 C
+0.52 C
1912
17.0 C
-0.48 C
1913
17.6 C
+0.16 C
1914
16.8 C
-0.63 C
1915
17.2 C
-0.24 C
1916
17.4 C
-0.03 C
1917
16.4 C
-1.10 C
1918
17.3 C
-0.20 C
1919
17.7 C
+0.22 C
1920
16.8 C
-0.64 C
1921
18.2 C
+0.77 C
1922
17.8 C
+0.30 C
1923
17.4 C
-0.05 C
1924
17.0 C
-0.51 C
1925
17.9 C
+0.40 C
1926
17.4 C
-0.02 C
1927
18.0 C
+0.50 C
1928
17.4 C
-0.05 C
1929
17.7 C
+0.20 C
1930
17.5 C
+0.01 C
1931
18.1 C
+0.59 C
1932
18.4 C
+0.95 C
1933
18.5 C
+1.03 C
1934
17.4 C
-0.02 C
1935
17.4 C
-0.07 C
1936
17.6 C
+0.13 C
1937
17.6 C
+0.16 C
1938
18.1 C
+0.68 C
1939
18.2 C
+0.74 C
1940
16.8 C
-0.69 C
1941
17.7 C
+0.28 C
1942
17.8 C
+0.30 C
1943
17.3 C
-0.13 C
1944
17.6 C
+0.14 C
1945
18.0 C
+0.58 C
1946
18.1 C
+0.65 C
1947
17.3 C
-0.17 C
1948
17.9 C
+0.44 C
1949
18.7 C
+1.21 C
1950
17.9 C
+0.40 C
The annual mean temperature here has risen by 0.08 C (0.03 to 0.13) per decade over 1875 to 1950. In Fahrenheit: 0.14 F (0.05 to 0.23) per decade. The slope is a straight line fitted to 76 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Wilmington Wb City
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.08 C (0.03 to 0.13) per decade
0.14 F (0.05 to 0.23) per decade
1875 to 1950
76
Rise
Mean daily maximum
0.08 C (0.03 to 0.13) per decade
0.14 F (0.05 to 0.23) per decade
1875 to 1950
76
Rise
Mean daily minimum
0.08 C (0.02 to 0.14) per decade
0.14 F (0.04 to 0.25) per decade
1875 to 1950
76
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
1870 to 1951
Yearly extremes at Wilmington Wb City: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
39.4 C (102.9 F)
1879
36.1 C (97.0 F)
78
Coldest night (TNn)
-15.0 C (5.0 F)
1899
-7.2 C (19.0 F)
79
Wettest day (Rx1day)
241.8 mm (9.5 in)
1938
85.3 mm (3.4 in)
81
Wettest five days (Rx5day)
322.9 mm (12.7 in)
1883
126.7 mm (5.0 in)
81
Longest dry spell (CDD)
46 days
1884
20 days
81
Hottest day (TXx)
The hottest day of the year at Wilmington Wb City, 1870 to 1951. The record is 39.4 C (102.9 F) in 1879, marked on the chart; the median year is 36.1 C (97.0 F).
Hottest day (TXx) at Wilmington Wb City by year
Year
Hottest day (TXx)
1870
n/a
1871
n/a
1872
n/a
1873
n/a
1874
36.7 C (98.1 F)
1875
38.9 C (102.0 F)
1876
37.2 C (99.0 F)
1877
36.1 C (97.0 F)
1878
37.2 C (99.0 F)
1879
39.4 C (102.9 F)
1880
37.8 C (100.0 F)
1881
35.6 C (96.1 F)
1882
34.4 C (93.9 F)
1883
36.1 C (97.0 F)
1884
34.4 C (93.9 F)
1885
34.4 C (93.9 F)
1886
34.4 C (93.9 F)
1887
37.8 C (100.0 F)
1888
35.6 C (96.1 F)
1889
36.1 C (97.0 F)
1890
37.8 C (100.0 F)
1891
35.0 C (95.0 F)
1892
35.6 C (96.1 F)
1893
36.1 C (97.0 F)
1894
35.0 C (95.0 F)
1895
37.8 C (100.0 F)
1896
36.7 C (98.1 F)
1897
36.1 C (97.0 F)
1898
35.6 C (96.1 F)
1899
36.7 C (98.1 F)
1900
36.7 C (98.1 F)
1901
35.0 C (95.0 F)
1902
37.8 C (100.0 F)
1903
36.1 C (97.0 F)
1904
35.6 C (96.1 F)
1905
35.0 C (95.0 F)
1906
35.6 C (96.1 F)
1907
37.8 C (100.0 F)
1908
33.9 C (93.0 F)
1909
32.8 C (91.0 F)
1910
34.4 C (93.9 F)
1911
35.6 C (96.1 F)
1912
35.6 C (96.1 F)
1913
35.6 C (96.1 F)
1914
37.2 C (99.0 F)
1915
35.6 C (96.1 F)
1916
35.0 C (95.0 F)
1917
36.1 C (97.0 F)
1918
36.7 C (98.1 F)
1919
35.0 C (95.0 F)
1920
36.7 C (98.1 F)
1921
35.6 C (96.1 F)
1922
34.4 C (93.9 F)
1923
33.9 C (93.0 F)
1924
37.2 C (99.0 F)
1925
38.3 C (100.9 F)
1926
36.7 C (98.1 F)
1927
35.0 C (95.0 F)
1928
36.7 C (98.1 F)
1929
34.4 C (93.9 F)
1930
36.7 C (98.1 F)
1931
36.7 C (98.1 F)
1932
36.7 C (98.1 F)
1933
36.7 C (98.1 F)
1934
36.1 C (97.0 F)
1935
36.1 C (97.0 F)
1936
38.9 C (102.0 F)
1937
35.0 C (95.0 F)
1938
35.6 C (96.1 F)
1939
36.7 C (98.1 F)
1940
36.7 C (98.1 F)
1941
35.6 C (96.1 F)
1942
38.3 C (100.9 F)
1943
37.8 C (100.0 F)
1944
37.8 C (100.0 F)
1945
34.4 C (93.9 F)
1946
35.0 C (95.0 F)
1947
34.4 C (93.9 F)
1948
35.0 C (95.0 F)
1949
37.2 C (99.0 F)
1950
36.1 C (97.0 F)
1951
35.6 C (96.1 F)
Coldest night (TNn)
The coldest night of the year at Wilmington Wb City, 1870 to 1951. The record is -15.0 C (5.0 F) in 1899, marked on the chart; the median year is -7.2 C (19.0 F).
Coldest night (TNn) at Wilmington Wb City by year
Year
Coldest night (TNn)
1870
n/a
1871
n/a
1872
n/a
1873
-6.7 C (19.9 F)
1874
-3.3 C (26.1 F)
1875
-9.4 C (15.1 F)
1876
-9.4 C (15.1 F)
1877
-8.3 C (17.1 F)
1878
-6.1 C (21.0 F)
1879
-9.4 C (15.1 F)
1880
-12.2 C (10.0 F)
1881
-7.2 C (19.0 F)
1882
-8.3 C (17.1 F)
1883
-5.0 C (23.0 F)
1884
-12.8 C (9.0 F)
1885
-6.7 C (19.9 F)
1886
-12.2 C (10.0 F)
1887
-9.4 C (15.1 F)
1888
-6.7 C (19.9 F)
1889
-6.7 C (19.9 F)
1890
-5.6 C (21.9 F)
1891
-5.0 C (23.0 F)
1892
-5.6 C (21.9 F)
1893
-10.6 C (12.9 F)
1894
-10.0 C (14.0 F)
1895
-12.2 C (10.0 F)
1896
-11.1 C (12.0 F)
1897
-10.0 C (14.0 F)
1898
-7.8 C (18.0 F)
1899
-15.0 C (5.0 F)
1900
-8.9 C (16.0 F)
1901
-8.9 C (16.0 F)
1902
-7.2 C (19.0 F)
1903
-7.2 C (19.0 F)
1904
-9.4 C (15.1 F)
1905
-8.9 C (16.0 F)
1906
-6.7 C (19.9 F)
1907
-6.1 C (21.0 F)
1908
-6.1 C (21.0 F)
1909
-8.9 C (16.0 F)
1910
-5.6 C (21.9 F)
1911
-2.8 C (27.0 F)
1912
-11.1 C (12.0 F)
1913
-2.8 C (27.0 F)
1914
-7.2 C (19.0 F)
1915
-3.9 C (25.0 F)
1916
-9.4 C (15.1 F)
1917
-14.4 C (6.1 F)
1918
-11.7 C (10.9 F)
1919
-6.7 C (19.9 F)
1920
-10.6 C (12.9 F)
1921
-5.0 C (23.0 F)
1922
-6.7 C (19.9 F)
1923
-5.6 C (21.9 F)
1924
-11.1 C (12.0 F)
1925
-10.6 C (12.9 F)
1926
-7.2 C (19.0 F)
1927
-10.0 C (14.0 F)
1928
-10.0 C (14.0 F)
1929
-6.7 C (19.9 F)
1930
-3.9 C (25.0 F)
1931
-4.4 C (24.1 F)
1932
-6.1 C (21.0 F)
1933
-6.7 C (19.9 F)
1934
-12.2 C (10.0 F)
1935
-9.4 C (15.1 F)
1936
-10.0 C (14.0 F)
1937
-5.6 C (21.9 F)
1938
-6.1 C (21.0 F)
1939
-4.4 C (24.1 F)
1940
-10.0 C (14.0 F)
1941
-3.9 C (25.0 F)
1942
-9.4 C (15.1 F)
1943
-11.1 C (12.0 F)
1944
-6.7 C (19.9 F)
1945
-7.2 C (19.0 F)
1946
-3.9 C (25.0 F)
1947
-7.8 C (18.0 F)
1948
-7.8 C (18.0 F)
1949
-1.7 C (28.9 F)
1950
-8.9 C (16.0 F)
1951
-7.2 C (19.0 F)
Wettest day (Rx1day)
The wettest day of the year at Wilmington Wb City, 1870 to 1951. The record is 241.8 mm (9.5 in) in 1938, marked on the chart; the median year is 85.3 mm (3.4 in).
Wettest day (Rx1day) at Wilmington Wb City by year
Year
Wettest day (Rx1day)
1870
n/a
1871
72.9 mm (2.9 in)
1872
136.9 mm (5.4 in)
1873
65.0 mm (2.6 in)
1874
89.7 mm (3.5 in)
1875
101.9 mm (4.0 in)
1876
178.6 mm (7.0 in)
1877
101.1 mm (4.0 in)
1878
101.3 mm (4.0 in)
1879
204.2 mm (8.0 in)
1880
70.1 mm (2.8 in)
1881
113.8 mm (4.5 in)
1882
120.7 mm (4.8 in)
1883
132.6 mm (5.2 in)
1884
168.7 mm (6.6 in)
1885
120.4 mm (4.7 in)
1886
186.2 mm (7.3 in)
1887
95.0 mm (3.7 in)
1888
82.0 mm (3.2 in)
1889
84.3 mm (3.3 in)
1890
89.7 mm (3.5 in)
1891
80.3 mm (3.2 in)
1892
106.7 mm (4.2 in)
1893
55.6 mm (2.2 in)
1894
61.7 mm (2.4 in)
1895
57.9 mm (2.3 in)
1896
68.1 mm (2.7 in)
1897
66.0 mm (2.6 in)
1898
65.0 mm (2.6 in)
1899
56.4 mm (2.2 in)
1900
72.4 mm (2.9 in)
1901
78.5 mm (3.1 in)
1902
43.2 mm (1.7 in)
1903
99.8 mm (3.9 in)
1904
56.4 mm (2.2 in)
1905
49.0 mm (1.9 in)
1906
84.3 mm (3.3 in)
1907
81.0 mm (3.2 in)
1908
90.2 mm (3.6 in)
1909
57.2 mm (2.3 in)
1910
73.7 mm (2.9 in)
1911
122.7 mm (4.8 in)
1912
80.0 mm (3.1 in)
1913
62.7 mm (2.5 in)
1914
58.9 mm (2.3 in)
1915
97.5 mm (3.8 in)
1916
103.4 mm (4.1 in)
1917
110.7 mm (4.4 in)
1918
126.2 mm (5.0 in)
1919
49.0 mm (1.9 in)
1920
88.4 mm (3.5 in)
1921
69.1 mm (2.7 in)
1922
102.1 mm (4.0 in)
1923
77.5 mm (3.1 in)
1924
144.3 mm (5.7 in)
1925
49.5 mm (1.9 in)
1926
81.3 mm (3.2 in)
1927
42.4 mm (1.7 in)
1928
119.9 mm (4.7 in)
1929
104.1 mm (4.1 in)
1930
82.3 mm (3.2 in)
1931
75.2 mm (3.0 in)
1932
69.1 mm (2.7 in)
1933
110.5 mm (4.4 in)
1934
97.5 mm (3.8 in)
1935
97.0 mm (3.8 in)
1936
130.0 mm (5.1 in)
1937
85.3 mm (3.4 in)
1938
241.8 mm (9.5 in)
1939
97.5 mm (3.8 in)
1940
76.7 mm (3.0 in)
1941
101.3 mm (4.0 in)
1942
75.4 mm (3.0 in)
1943
58.9 mm (2.3 in)
1944
106.2 mm (4.2 in)
1945
195.3 mm (7.7 in)
1946
153.9 mm (6.1 in)
1947
87.1 mm (3.4 in)
1948
51.1 mm (2.0 in)
1949
41.9 mm (1.6 in)
1950
172.2 mm (6.8 in)
1951
84.3 mm (3.3 in)
Wettest five days (Rx5day)
The wettest five days of the year at Wilmington Wb City, 1870 to 1951. The record is 322.9 mm (12.7 in) in 1883, marked on the chart; the median year is 126.7 mm (5.0 in).
Wettest five days (Rx5day) at Wilmington Wb City by year
Year
Wettest five days (Rx5day)
1870
n/a
1871
144.0 mm (5.7 in)
1872
215.4 mm (8.5 in)
1873
150.9 mm (5.9 in)
1874
196.4 mm (7.7 in)
1875
137.2 mm (5.4 in)
1876
225.1 mm (8.9 in)
1877
183.9 mm (7.2 in)
1878
122.4 mm (4.8 in)
1879
247.2 mm (9.7 in)
1880
148.8 mm (5.9 in)
1881
115.8 mm (4.6 in)
1882
144.9 mm (5.7 in)
1883
322.9 mm (12.7 in)
1884
236.8 mm (9.3 in)
1885
139.7 mm (5.5 in)
1886
269.9 mm (10.6 in)
1887
199.6 mm (7.9 in)
1888
107.1 mm (4.2 in)
1889
126.7 mm (5.0 in)
1890
122.7 mm (4.8 in)
1891
131.8 mm (5.2 in)
1892
147.5 mm (5.8 in)
1893
94.7 mm (3.7 in)
1894
99.1 mm (3.9 in)
1895
94.3 mm (3.7 in)
1896
99.5 mm (3.9 in)
1897
82.9 mm (3.3 in)
1898
90.2 mm (3.6 in)
1899
115.6 mm (4.6 in)
1900
104.4 mm (4.1 in)
1901
121.4 mm (4.8 in)
1902
76.8 mm (3.0 in)
1903
153.2 mm (6.0 in)
1904
104.7 mm (4.1 in)
1905
71.6 mm (2.8 in)
1906
153.7 mm (6.1 in)
1907
109.9 mm (4.3 in)
1908
123.5 mm (4.9 in)
1909
61.8 mm (2.4 in)
1910
117.9 mm (4.6 in)
1911
154.0 mm (6.1 in)
1912
92.0 mm (3.6 in)
1913
168.6 mm (6.6 in)
1914
97.1 mm (3.8 in)
1915
99.1 mm (3.9 in)
1916
187.0 mm (7.4 in)
1917
112.5 mm (4.4 in)
1918
129.5 mm (5.1 in)
1919
100.7 mm (4.0 in)
1920
149.8 mm (5.9 in)
1921
99.4 mm (3.9 in)
1922
144.0 mm (5.7 in)
1923
102.9 mm (4.1 in)
1924
231.4 mm (9.1 in)
1925
78.3 mm (3.1 in)
1926
106.1 mm (4.2 in)
1927
73.4 mm (2.9 in)
1928
153.4 mm (6.0 in)
1929
134.8 mm (5.3 in)
1930
119.8 mm (4.7 in)
1931
88.7 mm (3.5 in)
1932
109.2 mm (4.3 in)
1933
173.8 mm (6.8 in)
1934
171.5 mm (6.8 in)
1935
243.8 mm (9.6 in)
1936
158.0 mm (6.2 in)
1937
120.4 mm (4.7 in)
1938
242.8 mm (9.6 in)
1939
130.1 mm (5.1 in)
1940
132.5 mm (5.2 in)
1941
109.6 mm (4.3 in)
1942
118.3 mm (4.7 in)
1943
104.9 mm (4.1 in)
1944
145.8 mm (5.7 in)
1945
199.6 mm (7.9 in)
1946
210.1 mm (8.3 in)
1947
146.8 mm (5.8 in)
1948
96.3 mm (3.8 in)
1949
104.1 mm (4.1 in)
1950
311.3 mm (12.3 in)
1951
124.7 mm (4.9 in)
Longest dry spell (CDD)
The longest dry spell of the year at Wilmington Wb City, 1870 to 1951. The record is 46 days in 1884, marked on the chart; the median year is 20 days.
Longest dry spell (CDD) at Wilmington Wb City by year
Year
Longest dry spell (CDD)
1870
n/a
1871
16 days
1872
22 days
1873
26 days
1874
18 days
1875
16 days
1876
24 days
1877
17 days
1878
15 days
1879
13 days
1880
18 days
1881
17 days
1882
15 days
1883
32 days
1884
46 days
1885
13 days
1886
27 days
1887
19 days
1888
19 days
1889
32 days
1890
23 days
1891
26 days
1892
19 days
1893
21 days
1894
17 days
1895
29 days
1896
23 days
1897
19 days
1898
15 days
1899
21 days
1900
21 days
1901
17 days
1902
18 days
1903
20 days
1904
16 days
1905
23 days
1906
20 days
1907
16 days
1908
18 days
1909
23 days
1910
31 days
1911
23 days
1912
20 days
1913
21 days
1914
20 days
1915
23 days
1916
20 days
1917
20 days
1918
21 days
1919
43 days
1920
26 days
1921
17 days
1922
22 days
1923
20 days
1924
26 days
1925
17 days
1926
15 days
1927
21 days
1928
22 days
1929
15 days
1930
21 days
1931
42 days
1932
17 days
1933
33 days
1934
18 days
1935
23 days
1936
18 days
1937
16 days
1938
14 days
1939
28 days
1940
14 days
1941
19 days
1942
24 days
1943
46 days
1944
21 days
1945
22 days
1946
14 days
1947
16 days
1948
16 days
1949
23 days
1950
23 days
1951
28 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
76 years with a frost
Across 76 years with a frost, the median last spring frost at Wilmington Wb City falls on 16 March and the median first autumn frost on 24 November, which leaves a median of 255 days between them.
In 1921 to 1950 the median growing season was 263 days. That is 8 days more than in 1875 to 1904.
Fitted over all years, the growing season changes by +2.1 days per decade at this station.
Frost dates and growing season at Wilmington Wb City
Measure
Median, all years
Earliest period (1875 to 1904)
Recent period (1921 to 1950)
Recent against earliest
Fitted trend
Last spring frost
16 March
17 March
11 March
6 days earlier
-1.2 days per decade
First autumn frost
24 November
24 November
25 November
1 day later
+0.9 days per decade
Growing days
255 days
255 days
263 days
8 days more
+2.1 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
80 years, 1871 to 1950
A day with at least 86.3 mm (3.4 in) of rain is expected about once in 2 years. A day with at least 239.8 mm (9.4 in) of rain is expected about once in 100 years.
Rainfall return levels at Wilmington Wb City: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
86.3 mm (3.4 in)
5 years
120.2 mm (4.7 in)
10 years
145.3 mm (5.7 in)
25 years
180.3 mm (7.1 in)
50 years
208.9 mm (8.2 in)
100 years
239.8 mm (9.4 in)
Longer than the 80 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, 80 years of values from 1871 to 1950.
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: 241.8 mm (9.5 in) in 1938; 204.2 mm (8.0 in) in 1879; 195.3 mm (7.7 in) in 1945.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Wilmington Wb City standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Wilmington Wb City 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.