Record envelope, standing records and threshold days for Mannington 1 N (USC00465621), West Virginia, United States, with 79 years of record.
Key Facts for Mannington 1 N
Mannington 1 N (USC00465621) is a weather station in West Virginia, United States at 39.55 latitude and -80.35 longitude, 299 m (981 ft) above sea level.
The station reports from 1901 to 1979, 79 years of record.
1,464 records set at Mannington 1 N still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Mannington 1 N tied a daily record low maximum temperature of 10.0 C (50.0 F) on 29 April 1979.
About the Station
Location: West Virginia, United States, 39.55 latitude, -80.35 longitude.
Elevation: 299 m (981 ft).
Period of record: 1901 to 1979, 79 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 Mannington 1 N. 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 Mannington 1 N, 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)
-35.0 C (-31.0 F)
n/a
n/a
Feb
24.4 C (75.9 F)
-31.1 C (-24.0 F)
n/a
n/a
Mar
30.6 C (87.1 F)
-27.2 C (-17.0 F)
n/a
n/a
Apr
33.3 C (91.9 F)
-14.4 C (6.1 F)
n/a
n/a
May
35.0 C (95.0 F)
-7.2 C (19.0 F)
n/a
n/a
Jun
37.2 C (99.0 F)
-1.1 C (30.0 F)
n/a
n/a
Jul
38.3 C (100.9 F)
2.2 C (36.0 F)
n/a
n/a
Aug
38.3 C (100.9 F)
2.8 C (37.0 F)
n/a
n/a
Sep
38.9 C (102.0 F)
-6.1 C (21.0 F)
n/a
n/a
Oct
33.3 C (91.9 F)
-11.1 C (12.0 F)
n/a
n/a
Nov
29.4 C (84.9 F)
-20.0 C (-4.0 F)
n/a
n/a
Dec
25.0 C (77.0 F)
-30.0 C (-22.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Mannington 1 N still stand. 1901 holds the most, with 35.
Standing records at Mannington 1 N by the year they were set
Year set
Standing records
1901
35
1902
27
1903
24
1904
17
1905
16
1906
9
1907
17
1908
25
1909
13
1910
16
1911
26
1912
12
1913
17
1914
32
1915
15
1916
18
1917
20
1918
31
1919
17
1920
19
1921
11
1922
16
1923
18
1924
14
1925
23
1926
9
1927
27
1928
20
1929
28
1930
27
1931
11
1932
28
1933
17
1934
20
1935
21
1936
24
1937
16
1938
13
1939
13
1940
22
1941
12
1942
16
1943
12
1944
10
1945
17
1946
19
1947
27
1948
21
1949
25
1950
24
1951
25
1952
17
1953
29
1954
18
1955
21
1956
10
1957
14
1958
15
1959
18
1960
26
1961
16
1962
20
1963
26
1964
19
1965
19
1966
19
1967
11
1968
12
1969
5
1970
14
1971
15
1972
22
1973
12
1974
15
1975
7
1976
29
1977
21
1978
18
1979
4
All-Time Record Progression
5 new records
5 all-time records were set at Mannington 1 N between 11 July 1934 and 25 June 1956. Each dot is a new record.
When Mannington 1 N set new all-time records
Date
Kind
Detail
1934-07-11
Record daily precipitation
Record daily precipitation 103.4 mm (4.1 in)
1936-01-24
Record low maximum temperature
Record low maximum temperature -13.3 C (8.1 F)
1950-11-25
Record daily snowfall
Record daily snowfall 52.3 cm (20.6 in)
1953-09-03
Record high maximum temperature
Record high maximum temperature 38.9 C (102.0 F)
1956-06-25
Record daily precipitation
Record daily precipitation 104.1 mm (4.1 in)
Wettest Day of Each Month
Jun: 104.1 mm (4.1 in)
The wettest day on record for each calendar month at Mannington 1 N. The most was 104.1 mm (4.1 in) on 25 June 1956.
Record daily precipitation for each month at Mannington 1 N
Month
Record daily precipitation (mm)
Date
Jan
50.5 mm (2.0 in)
8 January 1953
Feb
43.2 mm (1.7 in)
3 February 1939
Mar
52.8 mm (2.1 in)
29 March 1924
Apr
81.8 mm (3.2 in)
12 April 1948
May
86.9 mm (3.4 in)
27 May 1956
Jun
104.1 mm (4.1 in)
25 June 1956
Jul
103.4 mm (4.1 in)
11 July 1934
Aug
72.6 mm (2.9 in)
14 August 1958
Sep
98.6 mm (3.9 in)
2 September 1922
Oct
88.9 mm (3.5 in)
15 October 1954
Nov
57.4 mm (2.3 in)
16 November 1926
Dec
48.8 mm (1.9 in)
15 December 1948
Period of Record Coverage
1901 to 1979
Complete yearUnder 90 percent of days
79 years of record at Mannington 1 N, 1901 to 1979. 6 years have data for under 90 percent of days and are left out of rankings: 1901, 1902, 1903, 1905, 1906, 1979.
Cooler than the station meanWarmer than the station mean
One stripe for each of 71 complete years at Mannington 1 N, 1904 to 1978. Blue stripes are years cooler than the station's own mean of 11.0 C (51.8 F); red stripes are warmer. The coolest year was 1917, at 9.5 C (49.1 F), and the warmest was 1949, at 12.7 C (54.9 F). The strongest colour marks a difference of 1.8 C (3.2 F).
Annual mean temperature at Mannington 1 N as warming stripes, 1904 to 1978
Year
Annual mean temperature
Difference from the station mean
1904
10.3 C
-0.68 C
1907
10.8 C
-0.24 C
1908
11.6 C
+0.63 C
1909
11.4 C
+0.35 C
1910
10.9 C
-0.12 C
1911
11.6 C
+0.54 C
1912
10.5 C
-0.50 C
1913
11.6 C
+0.62 C
1914
10.6 C
-0.46 C
1915
11.0 C
-0.01 C
1916
10.8 C
-0.24 C
1917
9.5 C
-1.51 C
1918
11.3 C
+0.25 C
1919
11.6 C
+0.63 C
1920
10.4 C
-0.61 C
1921
12.6 C
+1.59 C
1922
11.7 C
+0.68 C
1923
11.1 C
+0.10 C
1924
9.9 C
-1.09 C
1925
11.1 C
+0.07 C
1926
10.4 C
-0.60 C
1927
11.4 C
+0.34 C
1928
10.5 C
-0.53 C
1929
10.8 C
-0.24 C
1930
10.9 C
-0.11 C
1931
12.0 C
+0.98 C
1932
11.5 C
+0.48 C
1933
11.7 C
+0.67 C
1934
10.9 C
-0.12 C
1935
10.9 C
-0.16 C
1936
10.6 C
-0.39 C
1937
10.7 C
-0.30 C
1938
11.6 C
+0.60 C
1939
11.5 C
+0.51 C
1940
10.0 C
-1.05 C
1941
11.0 C
-0.04 C
1942
11.1 C
+0.12 C
1943
10.8 C
-0.25 C
1944
11.1 C
+0.13 C
1945
11.2 C
+0.14 C
1946
12.1 C
+1.12 C
1947
11.0 C
-0.04 C
1948
11.8 C
+0.80 C
1949
12.7 C
+1.70 C
1950
11.2 C
+0.23 C
1951
11.5 C
+0.51 C
1952
11.9 C
+0.89 C
1954
11.6 C
+0.57 C
1955
11.5 C
+0.47 C
1956
11.3 C
+0.32 C
1957
11.5 C
+0.50 C
1958
9.7 C
-1.36 C
1959
11.3 C
+0.27 C
1960
9.8 C
-1.19 C
1961
10.7 C
-0.30 C
1962
10.4 C
-0.61 C
1963
9.6 C
-1.38 C
1964
11.0 C
-0.04 C
1965
10.9 C
-0.14 C
1967
10.6 C
-0.46 C
1968
10.6 C
-0.46 C
1969
10.8 C
-0.23 C
1970
11.3 C
+0.33 C
1971
11.2 C
+0.21 C
1972
10.8 C
-0.22 C
1973
11.8 C
+0.79 C
1974
11.0 C
-0.06 C
1975
11.2 C
+0.17 C
1976
9.8 C
-1.20 C
1977
10.7 C
-0.36 C
1978
10.0 C
-1.06 C
The fitted trend in annual mean temperature here over 1904 to 1978 is -0.03 C (-0.11 to 0.04) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.1 F (-0.2 to 0.1) per decade. The slope is a straight line fitted to 71 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Mannington 1 N
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.03 C (-0.11 to 0.04) per decade
-0.1 F (-0.2 to 0.1) per decade
1904 to 1978
71
Not clearly different from zero
Mean daily maximum
0.07 C (-0.03 to 0.17) per decade
0.13 F (-0.05 to 0.31) per decade
1904 to 1978
71
Not clearly different from zero
Mean daily minimum
-0.1 C (-0.2 to -0.1) per decade
-0.3 F (-0.4 to -0.1) per decade
1904 to 1978
71
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
1901 to 1979
Yearly extremes at Mannington 1 N: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
38.9 C (102.0 F)
1953
34.4 C (93.9 F)
79
Coldest night (TNn)
-35.0 C (-31.0 F)
1912
-22.8 C (-9.0 F)
79
Wettest day (Rx1day)
104.1 mm (4.1 in)
1956
50.8 mm (2.0 in)
79
Wettest five days (Rx5day)
158.2 mm (6.2 in)
1948
85.8 mm (3.4 in)
78
Longest dry spell (CDD)
32 days
1967
15 days
79
Hottest day (TXx)
The hottest day of the year at Mannington 1 N, 1901 to 1979. The record is 38.9 C (102.0 F) in 1953, marked on the chart; the median year is 34.4 C (93.9 F).
Hottest day (TXx) at Mannington 1 N by year
Year
Hottest day (TXx)
1901
38.3 C (100.9 F)
1902
35.0 C (95.0 F)
1903
36.1 C (97.0 F)
1904
34.4 C (93.9 F)
1905
33.3 C (91.9 F)
1906
33.9 C (93.0 F)
1907
32.2 C (90.0 F)
1908
37.2 C (99.0 F)
1909
33.9 C (93.0 F)
1910
34.4 C (93.9 F)
1911
37.2 C (99.0 F)
1912
33.9 C (93.0 F)
1913
34.4 C (93.9 F)
1914
36.1 C (97.0 F)
1915
33.3 C (91.9 F)
1916
32.8 C (91.0 F)
1917
32.8 C (91.0 F)
1918
38.3 C (100.9 F)
1919
33.9 C (93.0 F)
1920
31.1 C (88.0 F)
1921
32.8 C (91.0 F)
1922
32.8 C (91.0 F)
1923
33.3 C (91.9 F)
1924
32.8 C (91.0 F)
1925
35.0 C (95.0 F)
1926
35.0 C (95.0 F)
1927
32.8 C (91.0 F)
1928
31.7 C (89.1 F)
1929
31.7 C (89.1 F)
1930
36.7 C (98.1 F)
1931
35.0 C (95.0 F)
1932
33.9 C (93.0 F)
1933
33.3 C (91.9 F)
1934
35.6 C (96.1 F)
1935
31.7 C (89.1 F)
1936
35.0 C (95.0 F)
1937
32.2 C (90.0 F)
1938
31.1 C (88.0 F)
1939
33.9 C (93.0 F)
1940
32.8 C (91.0 F)
1941
33.9 C (93.0 F)
1942
33.3 C (91.9 F)
1943
32.8 C (91.0 F)
1944
35.0 C (95.0 F)
1945
35.0 C (95.0 F)
1946
35.6 C (96.1 F)
1947
34.4 C (93.9 F)
1948
38.3 C (100.9 F)
1949
36.7 C (98.1 F)
1950
32.8 C (91.0 F)
1951
35.0 C (95.0 F)
1952
36.1 C (97.0 F)
1953
38.9 C (102.0 F)
1954
36.7 C (98.1 F)
1955
37.2 C (99.0 F)
1956
34.4 C (93.9 F)
1957
36.1 C (97.0 F)
1958
33.3 C (91.9 F)
1959
35.0 C (95.0 F)
1960
33.3 C (91.9 F)
1961
33.3 C (91.9 F)
1962
36.7 C (98.1 F)
1963
34.4 C (93.9 F)
1964
35.0 C (95.0 F)
1965
35.6 C (96.1 F)
1966
37.2 C (99.0 F)
1967
33.9 C (93.0 F)
1968
33.9 C (93.0 F)
1969
35.6 C (96.1 F)
1970
34.4 C (93.9 F)
1971
35.6 C (96.1 F)
1972
34.4 C (93.9 F)
1973
35.0 C (95.0 F)
1974
34.4 C (93.9 F)
1975
36.7 C (98.1 F)
1976
33.3 C (91.9 F)
1977
35.6 C (96.1 F)
1978
34.4 C (93.9 F)
1979
30.6 C (87.1 F)
Coldest night (TNn)
The coldest night of the year at Mannington 1 N, 1901 to 1979. The record is -35.0 C (-31.0 F) in 1912, marked on the chart; the median year is -22.8 C (-9.0 F).
Coldest night (TNn) at Mannington 1 N by year
Year
Coldest night (TNn)
1901
-20.0 C (-4.0 F)
1902
-20.0 C (-4.0 F)
1903
-22.2 C (-8.0 F)
1904
-26.1 C (-15.0 F)
1905
-26.1 C (-15.0 F)
1906
-14.4 C (6.1 F)
1907
-27.8 C (-18.0 F)
1908
-17.2 C (1.0 F)
1909
-16.7 C (1.9 F)
1910
-22.2 C (-8.0 F)
1911
-20.6 C (-5.1 F)
1912
-35.0 C (-31.0 F)
1913
-17.8 C (0.0 F)
1914
-28.9 C (-20.0 F)
1915
-16.1 C (3.0 F)
1916
-24.4 C (-11.9 F)
1917
-22.8 C (-9.0 F)
1918
-28.9 C (-20.0 F)
1919
-24.4 C (-11.9 F)
1920
-21.7 C (-7.1 F)
1921
-21.7 C (-7.1 F)
1922
-23.3 C (-9.9 F)
1923
-19.4 C (-2.9 F)
1924
-18.9 C (-2.0 F)
1925
-28.3 C (-18.9 F)
1926
-30.6 C (-23.1 F)
1927
-17.2 C (1.0 F)
1928
-19.4 C (-2.9 F)
1929
-26.1 C (-15.0 F)
1930
-23.9 C (-11.0 F)
1931
-18.3 C (-0.9 F)
1932
-23.9 C (-11.0 F)
1933
-22.8 C (-9.0 F)
1934
-31.1 C (-24.0 F)
1935
-23.9 C (-11.0 F)
1936
-30.0 C (-22.0 F)
1937
-21.1 C (-6.0 F)
1938
-16.7 C (1.9 F)
1939
-20.0 C (-4.0 F)
1940
-25.0 C (-13.0 F)
1941
-17.8 C (0.0 F)
1942
-30.0 C (-22.0 F)
1943
-27.2 C (-17.0 F)
1944
-20.6 C (-5.1 F)
1945
-21.7 C (-7.1 F)
1946
-17.8 C (0.0 F)
1947
-21.7 C (-7.1 F)
1948
-31.7 C (-25.1 F)
1949
-15.0 C (5.0 F)
1950
-21.1 C (-6.0 F)
1951
-22.2 C (-8.0 F)
1952
-20.6 C (-5.1 F)
1953
-20.0 C (-4.0 F)
1954
-20.0 C (-4.0 F)
1955
-21.7 C (-7.1 F)
1956
-17.8 C (0.0 F)
1957
-30.0 C (-22.0 F)
1958
-25.0 C (-13.0 F)
1959
-22.8 C (-9.0 F)
1960
-24.4 C (-11.9 F)
1961
-29.4 C (-20.9 F)
1962
-30.0 C (-22.0 F)
1963
-32.2 C (-26.0 F)
1964
-25.6 C (-14.1 F)
1965
-26.1 C (-15.0 F)
1966
-25.6 C (-14.1 F)
1967
-25.0 C (-13.0 F)
1968
-27.8 C (-18.0 F)
1969
-20.6 C (-5.1 F)
1970
-26.1 C (-15.0 F)
1971
-25.0 C (-13.0 F)
1972
-23.3 C (-9.9 F)
1973
-20.6 C (-5.1 F)
1974
-19.4 C (-2.9 F)
1975
-21.1 C (-6.0 F)
1976
-21.7 C (-7.1 F)
1977
-29.4 C (-20.9 F)
1978
-25.6 C (-14.1 F)
1979
-28.3 C (-18.9 F)
Wettest day (Rx1day)
The wettest day of the year at Mannington 1 N, 1901 to 1979. The record is 104.1 mm (4.1 in) in 1956, marked on the chart; the median year is 50.8 mm (2.0 in).
Wettest day (Rx1day) at Mannington 1 N by year
Year
Wettest day (Rx1day)
1901
66.0 mm (2.6 in)
1902
25.4 mm (1.0 in)
1903
42.9 mm (1.7 in)
1904
44.5 mm (1.8 in)
1905
46.2 mm (1.8 in)
1906
48.8 mm (1.9 in)
1907
43.2 mm (1.7 in)
1908
34.0 mm (1.3 in)
1909
32.3 mm (1.3 in)
1910
60.2 mm (2.4 in)
1911
50.8 mm (2.0 in)
1912
73.7 mm (2.9 in)
1913
52.1 mm (2.1 in)
1914
46.7 mm (1.8 in)
1915
63.5 mm (2.5 in)
1916
39.4 mm (1.6 in)
1917
58.7 mm (2.3 in)
1918
56.9 mm (2.2 in)
1919
47.8 mm (1.9 in)
1920
45.7 mm (1.8 in)
1921
49.0 mm (1.9 in)
1922
98.6 mm (3.9 in)
1923
39.9 mm (1.6 in)
1924
52.8 mm (2.1 in)
1925
48.3 mm (1.9 in)
1926
67.3 mm (2.6 in)
1927
54.9 mm (2.2 in)
1928
76.2 mm (3.0 in)
1929
61.0 mm (2.4 in)
1930
41.7 mm (1.6 in)
1931
40.9 mm (1.6 in)
1932
54.9 mm (2.2 in)
1933
51.3 mm (2.0 in)
1934
103.4 mm (4.1 in)
1935
55.1 mm (2.2 in)
1936
58.4 mm (2.3 in)
1937
49.5 mm (1.9 in)
1938
35.1 mm (1.4 in)
1939
57.9 mm (2.3 in)
1940
54.9 mm (2.2 in)
1941
58.4 mm (2.3 in)
1942
54.6 mm (2.1 in)
1943
48.0 mm (1.9 in)
1944
42.2 mm (1.7 in)
1945
54.1 mm (2.1 in)
1946
56.4 mm (2.2 in)
1947
48.0 mm (1.9 in)
1948
81.8 mm (3.2 in)
1949
44.7 mm (1.8 in)
1950
52.3 mm (2.1 in)
1951
72.4 mm (2.9 in)
1952
83.1 mm (3.3 in)
1953
50.5 mm (2.0 in)
1954
88.9 mm (3.5 in)
1955
43.2 mm (1.7 in)
1956
104.1 mm (4.1 in)
1957
40.4 mm (1.6 in)
1958
72.6 mm (2.9 in)
1959
61.0 mm (2.4 in)
1960
55.9 mm (2.2 in)
1961
50.8 mm (2.0 in)
1962
34.8 mm (1.4 in)
1963
67.3 mm (2.6 in)
1964
39.4 mm (1.6 in)
1965
39.9 mm (1.6 in)
1966
39.4 mm (1.6 in)
1967
64.8 mm (2.6 in)
1968
77.5 mm (3.1 in)
1969
40.1 mm (1.6 in)
1970
48.8 mm (1.9 in)
1971
66.0 mm (2.6 in)
1972
43.7 mm (1.7 in)
1973
33.0 mm (1.3 in)
1974
61.7 mm (2.4 in)
1975
45.7 mm (1.8 in)
1976
47.0 mm (1.9 in)
1977
48.3 mm (1.9 in)
1978
64.0 mm (2.5 in)
1979
30.5 mm (1.2 in)
Wettest five days (Rx5day)
The wettest five days of the year at Mannington 1 N, 1901 to 1979. The record is 158.2 mm (6.2 in) in 1948, marked on the chart; the median year is 85.8 mm (3.4 in).
Wettest five days (Rx5day) at Mannington 1 N by year
Year
Wettest five days (Rx5day)
1901
97.9 mm (3.9 in)
1902
n/a
1903
86.8 mm (3.4 in)
1904
54.9 mm (2.2 in)
1905
66.8 mm (2.6 in)
1906
78.1 mm (3.1 in)
1907
101.2 mm (4.0 in)
1908
62.5 mm (2.5 in)
1909
64.7 mm (2.5 in)
1910
103.7 mm (4.1 in)
1911
98.5 mm (3.9 in)
1912
117.9 mm (4.6 in)
1913
100.4 mm (4.0 in)
1914
80.0 mm (3.1 in)
1915
74.9 mm (2.9 in)
1916
63.6 mm (2.5 in)
1917
87.1 mm (3.4 in)
1918
90.9 mm (3.6 in)
1919
85.9 mm (3.4 in)
1920
75.9 mm (3.0 in)
1921
95.0 mm (3.7 in)
1922
112.4 mm (4.4 in)
1923
64.5 mm (2.5 in)
1924
79.8 mm (3.1 in)
1925
83.1 mm (3.3 in)
1926
111.5 mm (4.4 in)
1927
80.8 mm (3.2 in)
1928
109.2 mm (4.3 in)
1929
90.7 mm (3.6 in)
1930
49.6 mm (2.0 in)
1931
75.9 mm (3.0 in)
1932
77.8 mm (3.1 in)
1933
81.3 mm (3.2 in)
1934
112.3 mm (4.4 in)
1935
108.5 mm (4.3 in)
1936
89.3 mm (3.5 in)
1937
80.6 mm (3.2 in)
1938
70.3 mm (2.8 in)
1939
102.2 mm (4.0 in)
1940
77.1 mm (3.0 in)
1941
130.4 mm (5.1 in)
1942
97.6 mm (3.8 in)
1943
95.6 mm (3.8 in)
1944
69.9 mm (2.8 in)
1945
112.8 mm (4.4 in)
1946
82.3 mm (3.2 in)
1947
71.4 mm (2.8 in)
1948
158.2 mm (6.2 in)
1949
85.6 mm (3.4 in)
1950
102.7 mm (4.0 in)
1951
90.0 mm (3.5 in)
1952
93.0 mm (3.7 in)
1953
86.8 mm (3.4 in)
1954
108.7 mm (4.3 in)
1955
83.1 mm (3.3 in)
1956
112.0 mm (4.4 in)
1957
66.6 mm (2.6 in)
1958
87.6 mm (3.4 in)
1959
68.6 mm (2.7 in)
1960
81.0 mm (3.2 in)
1961
75.4 mm (3.0 in)
1962
63.5 mm (2.5 in)
1963
101.0 mm (4.0 in)
1964
64.5 mm (2.5 in)
1965
49.8 mm (2.0 in)
1966
64.1 mm (2.5 in)
1967
102.8 mm (4.0 in)
1968
100.1 mm (3.9 in)
1969
61.3 mm (2.4 in)
1970
79.8 mm (3.1 in)
1971
147.0 mm (5.8 in)
1972
81.9 mm (3.2 in)
1973
76.4 mm (3.0 in)
1974
150.0 mm (5.9 in)
1975
92.7 mm (3.6 in)
1976
100.5 mm (4.0 in)
1977
83.8 mm (3.3 in)
1978
106.7 mm (4.2 in)
1979
45.3 mm (1.8 in)
Longest dry spell (CDD)
The longest dry spell of the year at Mannington 1 N, 1901 to 1979. The record is 32 days in 1967, marked on the chart; the median year is 15 days.
Longest dry spell (CDD) at Mannington 1 N by year
Year
Longest dry spell (CDD)
1901
24 days
1902
2 days
1903
18 days
1904
19 days
1905
14 days
1906
13 days
1907
9 days
1908
20 days
1909
16 days
1910
18 days
1911
20 days
1912
12 days
1913
18 days
1914
15 days
1915
15 days
1916
16 days
1917
22 days
1918
15 days
1919
11 days
1920
24 days
1921
10 days
1922
24 days
1923
23 days
1924
25 days
1925
15 days
1926
11 days
1927
12 days
1928
12 days
1929
11 days
1930
13 days
1931
10 days
1932
15 days
1933
12 days
1934
19 days
1935
11 days
1936
16 days
1937
15 days
1938
21 days
1939
12 days
1940
14 days
1941
19 days
1942
16 days
1943
20 days
1944
12 days
1945
13 days
1946
12 days
1947
17 days
1948
12 days
1949
16 days
1950
15 days
1951
16 days
1952
13 days
1953
25 days
1954
12 days
1955
23 days
1956
14 days
1957
18 days
1958
12 days
1959
14 days
1960
11 days
1961
14 days
1962
15 days
1963
26 days
1964
26 days
1965
13 days
1966
23 days
1967
32 days
1968
16 days
1969
13 days
1970
11 days
1971
17 days
1972
12 days
1973
16 days
1974
15 days
1975
15 days
1976
13 days
1977
16 days
1978
12 days
1979
9 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
71 years with a frost
Across 71 years with a frost, the median last spring frost at Mannington 1 N falls on 11 May and the median first autumn frost on 4 October, which leaves a median of 145 days between them.
In 1947 to 1978 the median growing season was 141 days. That is 8 days fewer than in 1904 to 1935.
Fitted over all years, the growing season changes by -1.7 days per decade at this station.
Frost dates and growing season at Mannington 1 N
Measure
Median, all years
Earliest period (1904 to 1935)
Recent period (1947 to 1978)
Recent against earliest
Fitted trend
Last spring frost
11 May
9 May
13 May
4 days later
+1.0 days per decade
First autumn frost
4 October
6 October
3 October
3 days earlier
-0.7 days per decade
Growing days
145 days
149 days
141 days
8 days fewer
-1.7 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
73 years, 1904 to 1978
A day with at least 51.8 mm (2.0 in) of rain is expected about once in 2 years. A day with at least 111.0 mm (4.4 in) of rain is expected about once in 100 years.
Rainfall return levels at Mannington 1 N: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
51.8 mm (2.0 in)
5 years
65.5 mm (2.6 in)
10 years
75.4 mm (3.0 in)
25 years
88.9 mm (3.5 in)
50 years
99.6 mm (3.9 in)
100 years
111.0 mm (4.4 in)
Longer than the 73 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, 73 years of values from 1904 to 1978.
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: 104.1 mm (4.1 in) in 1956; 103.4 mm (4.1 in) in 1934; 98.6 mm (3.9 in) in 1922.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Mannington 1 N standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Mannington 1 N 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.