Record envelope, standing records and threshold days for Mellen 4 NE (USC00475286), Wisconsin, United States, with 93 years of record.
Key Facts for Mellen 4 NE
Mellen 4 NE (USC00475286) is a weather station in Wisconsin, United States at 46.37 latitude and -90.64 longitude, 396 m (1,300 ft) above sea level.
The station reports from 1926 to 2018, 93 years of record.
1,464 records set at Mellen 4 NE still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Mellen 4 NE tied a daily record high minimum temperature of 18.3 C (64.9 F) on 17 June 2018.
About the Station
Location: Wisconsin, United States, 46.37 latitude, -90.64 longitude.
Elevation: 396 m (1,300 ft).
Period of record: 1926 to 2018, 93 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 Mellen 4 NE. 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 Mellen 4 NE, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
12.8 C (55.0 F)
-45.0 C (-49.0 F)
n/a
n/a
Feb
17.2 C (63.0 F)
-43.3 C (-45.9 F)
n/a
n/a
Mar
26.7 C (80.1 F)
-41.1 C (-42.0 F)
n/a
n/a
Apr
35.6 C (96.1 F)
-22.8 C (-9.0 F)
n/a
n/a
May
35.0 C (95.0 F)
-11.1 C (12.0 F)
n/a
n/a
Jun
36.7 C (98.1 F)
-5.0 C (23.0 F)
n/a
n/a
Jul
40.6 C (105.1 F)
-0.6 C (30.9 F)
n/a
n/a
Aug
38.9 C (102.0 F)
-6.1 C (21.0 F)
n/a
n/a
Sep
36.7 C (98.1 F)
-9.4 C (15.1 F)
n/a
n/a
Oct
31.1 C (88.0 F)
-14.4 C (6.1 F)
n/a
n/a
Nov
25.0 C (77.0 F)
-28.9 C (-20.0 F)
n/a
n/a
Dec
16.1 C (61.0 F)
-38.3 C (-36.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Mellen 4 NE still stand. 1942 holds the most, with 37.
Standing records at Mellen 4 NE by the year they were set
Year set
Standing records
1926
10
1927
10
1928
15
1929
23
1930
36
1931
32
1932
17
1933
24
1934
21
1935
16
1936
29
1937
10
1938
11
1939
18
1940
22
1941
25
1942
37
1943
10
1944
13
1945
22
1946
21
1947
27
1948
27
1949
9
1950
18
1951
21
1952
8
1953
13
1954
15
1955
9
1956
16
1957
6
1958
11
1959
17
1960
7
1961
11
1962
14
1963
21
1964
19
1965
22
1966
11
1967
12
1968
17
1969
11
1970
12
1971
13
1972
22
1973
14
1974
16
1975
11
1976
21
1977
22
1978
6
1979
11
1980
7
1981
12
1982
16
1983
24
1984
20
1985
8
1986
15
1987
19
1988
17
1989
26
1990
14
1991
29
1992
15
1993
16
1994
14
1995
22
1996
23
1997
11
1998
13
1999
15
2000
16
2001
21
2002
15
2003
11
2004
12
2005
16
2006
13
2007
14
2008
5
2009
14
2010
9
2011
12
2012
18
2013
14
2014
11
2015
8
2016
5
2018
2
All-Time Record Progression
4 new records
4 all-time records were set at Mellen 4 NE between 23 January 1963 and 3 January 1999. Each dot is a new record.
When Mellen 4 NE set new all-time records
Date
Kind
Detail
1963-01-23
Record low maximum temperature
Record low maximum temperature -25.6 C (-14.1 F)
1966-01-28
Record low maximum temperature
Record low maximum temperature -26.1 C (-15.0 F)
1972-01-15
Record low maximum temperature
Record low maximum temperature -29.4 C (-20.9 F)
1999-01-03
Record daily snowfall
Record daily snowfall 58.4 cm (23.0 in)
Wettest Day of Each Month
Jun: 297.7 mm (11.7 in)
The wettest day on record for each calendar month at Mellen 4 NE. The most was 297.7 mm (11.7 in) on 24 June 1946.
Record daily precipitation for each month at Mellen 4 NE
Month
Record daily precipitation (mm)
Date
Jan
33.0 mm (1.3 in)
25 January 1938
Feb
32.5 mm (1.3 in)
15 February 1945
Mar
40.1 mm (1.6 in)
16 March 2016
Apr
83.3 mm (3.3 in)
23 April 1960
May
79.2 mm (3.1 in)
27 May 1951
Jun
297.7 mm (11.7 in)
24 June 1946
Jul
179.1 mm (7.1 in)
3 July 1949
Aug
147.8 mm (5.8 in)
29 August 1932
Sep
86.9 mm (3.4 in)
12 September 1951
Oct
84.3 mm (3.3 in)
5 October 2005
Nov
82.6 mm (3.3 in)
10 November 1975
Dec
39.1 mm (1.5 in)
28 December 1982
Period of Record Coverage
1926 to 2018
Complete yearUnder 90 percent of days
93 years of record at Mellen 4 NE, 1926 to 2018. 19 years have data for under 90 percent of days and are left out of rankings: 1926, 1927, 1936, 1937, 1939, 1942, 1943, 1949 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 61 complete years at Mellen 4 NE, 1930 to 2010. Blue stripes are years cooler than the station's own mean of 4.6 C (40.3 F); red stripes are warmer. The coolest year was 1972, at 2.7 C (36.8 F), and the warmest was 1931, at 7.1 C (44.8 F). The strongest colour marks a difference of 2.6 C (4.7 F).
Annual mean temperature at Mellen 4 NE as warming stripes, 1930 to 2010
Year
Annual mean temperature
Difference from the station mean
1930
4.7 C
+0.14 C
1931
7.1 C
+2.53 C
1932
3.8 C
-0.80 C
1935
4.8 C
+0.19 C
1940
4.7 C
+0.07 C
1941
6.7 C
+2.11 C
1944
5.7 C
+1.07 C
1945
4.0 C
-0.64 C
1946
4.9 C
+0.34 C
1947
3.8 C
-0.80 C
1948
4.1 C
-0.55 C
1950
2.9 C
-1.66 C
1951
3.7 C
-0.93 C
1952
5.4 C
+0.79 C
1954
5.3 C
+0.65 C
1957
4.6 C
+0.03 C
1959
4.3 C
-0.33 C
1961
5.8 C
+1.24 C
1962
5.0 C
+0.39 C
1963
5.2 C
+0.63 C
1964
5.6 C
+1.01 C
1965
4.0 C
-0.64 C
1967
3.9 C
-0.66 C
1968
4.9 C
+0.31 C
1969
4.5 C
-0.07 C
1970
4.1 C
-0.46 C
1971
3.8 C
-0.79 C
1972
2.7 C
-1.91 C
1973
5.3 C
+0.66 C
1974
4.0 C
-0.61 C
1975
4.7 C
+0.07 C
1976
3.9 C
-0.70 C
1977
5.0 C
+0.42 C
1978
3.9 C
-0.67 C
1979
3.3 C
-1.31 C
1980
4.3 C
-0.27 C
1982
4.1 C
-0.54 C
1983
5.2 C
+0.62 C
1984
5.0 C
+0.35 C
1985
3.6 C
-1.03 C
1986
4.7 C
+0.11 C
1989
3.3 C
-1.31 C
1990
5.0 C
+0.41 C
1992
4.5 C
-0.09 C
1993
3.8 C
-0.83 C
1994
4.4 C
-0.19 C
1995
4.2 C
-0.43 C
1996
2.7 C
-1.90 C
1997
4.4 C
-0.20 C
1998
7.0 C
+2.38 C
1999
5.8 C
+1.18 C
2000
4.7 C
+0.09 C
2001
5.8 C
+1.22 C
2002
4.8 C
+0.24 C
2003
4.2 C
-0.38 C
2004
4.4 C
-0.17 C
2005
5.6 C
+1.00 C
2006
6.1 C
+1.47 C
2008
3.5 C
-1.15 C
2009
4.0 C
-0.60 C
2010
5.6 C
+1.00 C
The fitted trend in annual mean temperature here over 1930 to 2010 is -0.02 C (-0.13 to 0.09) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.04 F (-0.24 to 0.15) per decade. The slope is a straight line fitted to 61 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Mellen 4 NE
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.02 C (-0.13 to 0.09) per decade
-0.04 F (-0.24 to 0.15) per decade
1930 to 2010
61
Not clearly different from zero
Mean daily maximum
-0.15 C (-0.26 to -0.04) per decade
-0.3 F (-0.5 to -0.1) per decade
1930 to 2010
61
Fall
Mean daily minimum
0.10 C (-0.03 to 0.24) per decade
0.2 F (-0.1 to 0.4) per decade
1930 to 2010
61
Not clearly different from zero
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
1926 to 2018
Yearly extremes at Mellen 4 NE: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
40.6 C (105.1 F)
1936
33.3 C (91.9 F)
93
Coldest night (TNn)
-45.0 C (-49.0 F)
1950
-34.4 C (-29.9 F)
93
Wettest day (Rx1day)
297.7 mm (11.7 in)
1946
52.1 mm (2.1 in)
93
Wettest five days (Rx5day)
234.1 mm (9.2 in)
1932
83.6 mm (3.3 in)
93
Longest dry spell (CDD)
40 days
1939
18 days
93
Hottest day (TXx)
The hottest day of the year at Mellen 4 NE, 1926 to 2018. The record is 40.6 C (105.1 F) in 1936, marked on the chart; the median year is 33.3 C (91.9 F).
Hottest day (TXx) at Mellen 4 NE by year
Year
Hottest day (TXx)
1926
25.0 C (77.0 F)
1927
34.4 C (93.9 F)
1928
31.7 C (89.1 F)
1929
33.3 C (91.9 F)
1930
33.9 C (93.0 F)
1931
36.7 C (98.1 F)
1932
34.4 C (93.9 F)
1933
34.4 C (93.9 F)
1934
38.9 C (102.0 F)
1935
33.3 C (91.9 F)
1936
40.6 C (105.1 F)
1937
34.4 C (93.9 F)
1938
32.8 C (91.0 F)
1939
35.0 C (95.0 F)
1940
34.4 C (93.9 F)
1941
34.4 C (93.9 F)
1942
38.9 C (102.0 F)
1943
35.6 C (96.1 F)
1944
32.8 C (91.0 F)
1945
34.4 C (93.9 F)
1946
34.4 C (93.9 F)
1947
37.8 C (100.0 F)
1948
38.3 C (100.9 F)
1949
34.4 C (93.9 F)
1950
32.2 C (90.0 F)
1951
31.7 C (89.1 F)
1952
32.2 C (90.0 F)
1953
30.0 C (86.0 F)
1954
31.7 C (89.1 F)
1955
35.0 C (95.0 F)
1956
35.0 C (95.0 F)
1957
33.3 C (91.9 F)
1958
32.2 C (90.0 F)
1959
33.9 C (93.0 F)
1960
32.2 C (90.0 F)
1961
33.9 C (93.0 F)
1962
31.7 C (89.1 F)
1963
35.0 C (95.0 F)
1964
33.9 C (93.0 F)
1965
33.3 C (91.9 F)
1966
33.3 C (91.9 F)
1967
32.2 C (90.0 F)
1968
32.2 C (90.0 F)
1969
33.9 C (93.0 F)
1970
33.9 C (93.0 F)
1971
35.0 C (95.0 F)
1972
31.1 C (88.0 F)
1973
33.3 C (91.9 F)
1974
35.0 C (95.0 F)
1975
33.9 C (93.0 F)
1976
36.7 C (98.1 F)
1977
34.4 C (93.9 F)
1978
32.2 C (90.0 F)
1979
32.2 C (90.0 F)
1980
34.4 C (93.9 F)
1981
32.2 C (90.0 F)
1982
34.4 C (93.9 F)
1983
33.3 C (91.9 F)
1984
33.3 C (91.9 F)
1985
31.1 C (88.0 F)
1986
34.4 C (93.9 F)
1987
33.3 C (91.9 F)
1988
36.7 C (98.1 F)
1989
34.4 C (93.9 F)
1990
34.4 C (93.9 F)
1991
33.3 C (91.9 F)
1992
31.7 C (89.1 F)
1993
31.7 C (89.1 F)
1994
32.8 C (91.0 F)
1995
35.6 C (96.1 F)
1996
33.3 C (91.9 F)
1997
32.2 C (90.0 F)
1998
31.7 C (89.1 F)
1999
36.1 C (97.0 F)
2000
32.8 C (91.0 F)
2001
33.9 C (93.0 F)
2002
33.3 C (91.9 F)
2003
32.2 C (90.0 F)
2004
31.7 C (89.1 F)
2005
33.3 C (91.9 F)
2006
36.7 C (98.1 F)
2007
33.3 C (91.9 F)
2008
30.0 C (86.0 F)
2009
32.8 C (91.0 F)
2010
32.8 C (91.0 F)
2011
33.9 C (93.0 F)
2012
33.3 C (91.9 F)
2013
32.8 C (91.0 F)
2014
30.0 C (86.0 F)
2015
31.1 C (88.0 F)
2016
30.6 C (87.1 F)
2017
25.0 C (77.0 F)
2018
33.3 C (91.9 F)
Coldest night (TNn)
The coldest night of the year at Mellen 4 NE, 1926 to 2018. The record is -45.0 C (-49.0 F) in 1950, marked on the chart; the median year is -34.4 C (-29.9 F).
Coldest night (TNn) at Mellen 4 NE by year
Year
Coldest night (TNn)
1926
-33.3 C (-27.9 F)
1927
-41.7 C (-43.1 F)
1928
-42.2 C (-44.0 F)
1929
-39.4 C (-38.9 F)
1930
-42.2 C (-44.0 F)
1931
-28.9 C (-20.0 F)
1932
-37.2 C (-35.0 F)
1933
-36.1 C (-33.0 F)
1934
-35.6 C (-32.1 F)
1935
-41.1 C (-42.0 F)
1936
-37.2 C (-35.0 F)
1937
-33.3 C (-27.9 F)
1938
-41.1 C (-42.0 F)
1939
-36.7 C (-34.1 F)
1940
-36.7 C (-34.1 F)
1941
-29.4 C (-20.9 F)
1942
-33.9 C (-29.0 F)
1943
-35.6 C (-32.1 F)
1944
-32.2 C (-26.0 F)
1945
-38.9 C (-38.0 F)
1946
-38.9 C (-38.0 F)
1947
-32.8 C (-27.0 F)
1948
-42.8 C (-45.0 F)
1949
-31.1 C (-24.0 F)
1950
-45.0 C (-49.0 F)
1951
-43.3 C (-45.9 F)
1952
-35.0 C (-31.0 F)
1953
-33.3 C (-27.9 F)
1954
-35.6 C (-32.1 F)
1955
-32.2 C (-26.0 F)
1956
-30.6 C (-23.1 F)
1957
-34.4 C (-29.9 F)
1958
-38.3 C (-36.9 F)
1959
-40.6 C (-41.1 F)
1960
-34.4 C (-29.9 F)
1961
-31.7 C (-25.1 F)
1962
-37.2 C (-35.0 F)
1963
-35.6 C (-32.1 F)
1964
-31.1 C (-24.0 F)
1965
-37.2 C (-35.0 F)
1966
-37.8 C (-36.0 F)
1967
-42.8 C (-45.0 F)
1968
-37.2 C (-35.0 F)
1969
-33.3 C (-27.9 F)
1970
-39.4 C (-38.9 F)
1971
-38.3 C (-36.9 F)
1972
-40.6 C (-41.1 F)
1973
-37.8 C (-36.0 F)
1974
-38.3 C (-36.9 F)
1975
-32.8 C (-27.0 F)
1976
-37.8 C (-36.0 F)
1977
-38.9 C (-38.0 F)
1978
-34.4 C (-29.9 F)
1979
-36.7 C (-34.1 F)
1980
-32.2 C (-26.0 F)
1981
-34.4 C (-29.9 F)
1982
-36.7 C (-34.1 F)
1983
-36.7 C (-34.1 F)
1984
-35.0 C (-31.0 F)
1985
-37.2 C (-35.0 F)
1986
-31.1 C (-24.0 F)
1987
-34.4 C (-29.9 F)
1988
-37.2 C (-35.0 F)
1989
-35.6 C (-32.1 F)
1990
-32.2 C (-26.0 F)
1991
-31.7 C (-25.1 F)
1992
-30.0 C (-22.0 F)
1993
-30.0 C (-22.0 F)
1994
-35.0 C (-31.0 F)
1995
-27.8 C (-18.0 F)
1996
-43.3 C (-45.9 F)
1997
-35.6 C (-32.1 F)
1998
-31.1 C (-24.0 F)
1999
-32.2 C (-26.0 F)
2000
-32.8 C (-27.0 F)
2001
-28.9 C (-20.0 F)
2002
-27.2 C (-17.0 F)
2003
-32.8 C (-27.0 F)
2004
-31.7 C (-25.1 F)
2005
-30.0 C (-22.0 F)
2006
-32.2 C (-26.0 F)
2007
-33.9 C (-29.0 F)
2008
-31.7 C (-25.1 F)
2009
-32.2 C (-26.0 F)
2010
-28.3 C (-18.9 F)
2011
-33.9 C (-29.0 F)
2012
-29.4 C (-20.9 F)
2013
-31.7 C (-25.1 F)
2014
-33.9 C (-29.0 F)
2015
-15.6 C (3.9 F)
2016
-26.7 C (-16.1 F)
2017
-4.4 C (24.1 F)
2018
-6.7 C (19.9 F)
Wettest day (Rx1day)
The wettest day of the year at Mellen 4 NE, 1926 to 2018. The record is 297.7 mm (11.7 in) in 1946, marked on the chart; the median year is 52.1 mm (2.1 in).
Wettest day (Rx1day) at Mellen 4 NE by year
Year
Wettest day (Rx1day)
1926
29.5 mm (1.2 in)
1927
53.3 mm (2.1 in)
1928
50.5 mm (2.0 in)
1929
35.6 mm (1.4 in)
1930
54.1 mm (2.1 in)
1931
45.7 mm (1.8 in)
1932
147.8 mm (5.8 in)
1933
76.2 mm (3.0 in)
1934
44.2 mm (1.7 in)
1935
51.6 mm (2.0 in)
1936
48.3 mm (1.9 in)
1937
68.6 mm (2.7 in)
1938
50.8 mm (2.0 in)
1939
48.3 mm (1.9 in)
1940
55.9 mm (2.2 in)
1941
127.0 mm (5.0 in)
1942
43.2 mm (1.7 in)
1943
48.3 mm (1.9 in)
1944
63.5 mm (2.5 in)
1945
55.9 mm (2.2 in)
1946
297.7 mm (11.7 in)
1947
52.8 mm (2.1 in)
1948
31.2 mm (1.2 in)
1949
179.1 mm (7.1 in)
1950
48.3 mm (1.9 in)
1951
86.9 mm (3.4 in)
1952
71.4 mm (2.8 in)
1953
51.8 mm (2.0 in)
1954
69.1 mm (2.7 in)
1955
52.1 mm (2.1 in)
1956
36.3 mm (1.4 in)
1957
65.5 mm (2.6 in)
1958
83.3 mm (3.3 in)
1959
35.6 mm (1.4 in)
1960
83.3 mm (3.3 in)
1961
49.5 mm (1.9 in)
1962
32.3 mm (1.3 in)
1963
26.7 mm (1.1 in)
1964
78.5 mm (3.1 in)
1965
54.4 mm (2.1 in)
1966
47.0 mm (1.9 in)
1967
43.9 mm (1.7 in)
1968
45.7 mm (1.8 in)
1969
62.2 mm (2.4 in)
1970
29.0 mm (1.1 in)
1971
36.8 mm (1.4 in)
1972
74.9 mm (2.9 in)
1973
63.8 mm (2.5 in)
1974
66.0 mm (2.6 in)
1975
82.6 mm (3.3 in)
1976
42.2 mm (1.7 in)
1977
94.2 mm (3.7 in)
1978
96.5 mm (3.8 in)
1979
59.9 mm (2.4 in)
1980
37.1 mm (1.5 in)
1981
34.0 mm (1.3 in)
1982
59.2 mm (2.3 in)
1983
61.7 mm (2.4 in)
1984
50.8 mm (2.0 in)
1985
55.4 mm (2.2 in)
1986
38.1 mm (1.5 in)
1987
38.1 mm (1.5 in)
1988
30.5 mm (1.2 in)
1989
51.1 mm (2.0 in)
1990
47.5 mm (1.9 in)
1991
49.5 mm (1.9 in)
1992
74.2 mm (2.9 in)
1993
41.1 mm (1.6 in)
1994
48.8 mm (1.9 in)
1995
44.5 mm (1.8 in)
1996
53.8 mm (2.1 in)
1997
46.7 mm (1.8 in)
1998
40.6 mm (1.6 in)
1999
51.6 mm (2.0 in)
2000
105.2 mm (4.1 in)
2001
61.7 mm (2.4 in)
2002
45.5 mm (1.8 in)
2003
70.6 mm (2.8 in)
2004
69.3 mm (2.7 in)
2005
135.6 mm (5.3 in)
2006
50.8 mm (2.0 in)
2007
65.3 mm (2.6 in)
2008
39.9 mm (1.6 in)
2009
33.0 mm (1.3 in)
2010
63.2 mm (2.5 in)
2011
29.2 mm (1.1 in)
2012
41.9 mm (1.6 in)
2013
141.2 mm (5.6 in)
2014
69.1 mm (2.7 in)
2015
54.9 mm (2.2 in)
2016
166.6 mm (6.6 in)
2017
62.7 mm (2.5 in)
2018
91.4 mm (3.6 in)
Wettest five days (Rx5day)
The wettest five days of the year at Mellen 4 NE, 1926 to 2018. The record is 234.1 mm (9.2 in) in 1932, marked on the chart; the median year is 83.6 mm (3.3 in).
Wettest five days (Rx5day) at Mellen 4 NE by year
Year
Wettest five days (Rx5day)
1926
46.3 mm (1.8 in)
1927
88.8 mm (3.5 in)
1928
82.7 mm (3.3 in)
1929
52.7 mm (2.1 in)
1930
83.1 mm (3.3 in)
1931
93.0 mm (3.7 in)
1932
234.1 mm (9.2 in)
1933
59.5 mm (2.3 in)
1934
105.5 mm (4.2 in)
1935
65.8 mm (2.6 in)
1936
69.9 mm (2.8 in)
1937
97.0 mm (3.8 in)
1938
69.8 mm (2.7 in)
1939
109.4 mm (4.3 in)
1940
74.9 mm (2.9 in)
1941
200.9 mm (7.9 in)
1942
57.2 mm (2.3 in)
1943
54.7 mm (2.2 in)
1944
153.9 mm (6.1 in)
1945
85.9 mm (3.4 in)
1946
73.6 mm (2.9 in)
1947
70.8 mm (2.8 in)
1948
42.9 mm (1.7 in)
1949
214.4 mm (8.4 in)
1950
63.3 mm (2.5 in)
1951
135.0 mm (5.3 in)
1952
134.4 mm (5.3 in)
1953
82.0 mm (3.2 in)
1954
112.1 mm (4.4 in)
1955
111.5 mm (4.4 in)
1956
76.0 mm (3.0 in)
1957
75.2 mm (3.0 in)
1958
115.1 mm (4.5 in)
1959
83.9 mm (3.3 in)
1960
163.0 mm (6.4 in)
1961
76.0 mm (3.0 in)
1962
62.5 mm (2.5 in)
1963
42.0 mm (1.7 in)
1964
104.2 mm (4.1 in)
1965
75.2 mm (3.0 in)
1966
85.6 mm (3.4 in)
1967
80.5 mm (3.2 in)
1968
70.6 mm (2.8 in)
1969
63.7 mm (2.5 in)
1970
63.3 mm (2.5 in)
1971
54.1 mm (2.1 in)
1972
154.2 mm (6.1 in)
1973
83.6 mm (3.3 in)
1974
91.7 mm (3.6 in)
1975
106.5 mm (4.2 in)
1976
62.0 mm (2.4 in)
1977
150.8 mm (5.9 in)
1978
104.7 mm (4.1 in)
1979
98.8 mm (3.9 in)
1980
60.7 mm (2.4 in)
1981
78.4 mm (3.1 in)
1982
90.9 mm (3.6 in)
1983
80.2 mm (3.2 in)
1984
91.5 mm (3.6 in)
1985
82.6 mm (3.3 in)
1986
62.3 mm (2.5 in)
1987
61.2 mm (2.4 in)
1988
80.0 mm (3.1 in)
1989
59.5 mm (2.3 in)
1990
84.5 mm (3.3 in)
1991
88.5 mm (3.5 in)
1992
155.4 mm (6.1 in)
1993
62.7 mm (2.5 in)
1994
103.9 mm (4.1 in)
1995
70.6 mm (2.8 in)
1996
67.6 mm (2.7 in)
1997
85.1 mm (3.4 in)
1998
90.9 mm (3.6 in)
1999
82.6 mm (3.3 in)
2000
130.1 mm (5.1 in)
2001
94.9 mm (3.7 in)
2002
108.4 mm (4.3 in)
2003
110.5 mm (4.4 in)
2004
80.0 mm (3.1 in)
2005
146.3 mm (5.8 in)
2006
158.5 mm (6.2 in)
2007
103.1 mm (4.1 in)
2008
55.4 mm (2.2 in)
2009
66.3 mm (2.6 in)
2010
103.4 mm (4.1 in)
2011
44.2 mm (1.7 in)
2012
111.3 mm (4.4 in)
2013
164.8 mm (6.5 in)
2014
80.0 mm (3.1 in)
2015
54.9 mm (2.2 in)
2016
177.8 mm (7.0 in)
2017
156.0 mm (6.1 in)
2018
167.2 mm (6.6 in)
Longest dry spell (CDD)
The longest dry spell of the year at Mellen 4 NE, 1926 to 2018. The record is 40 days in 1939, marked on the chart; the median year is 18 days.
Longest dry spell (CDD) at Mellen 4 NE by year
Year
Longest dry spell (CDD)
1926
16 days
1927
17 days
1928
28 days
1929
22 days
1930
20 days
1931
25 days
1932
24 days
1933
22 days
1934
22 days
1935
12 days
1936
27 days
1937
16 days
1938
21 days
1939
40 days
1940
17 days
1941
20 days
1942
28 days
1943
22 days
1944
17 days
1945
26 days
1946
24 days
1947
19 days
1948
32 days
1949
15 days
1950
23 days
1951
18 days
1952
22 days
1953
15 days
1954
20 days
1955
18 days
1956
12 days
1957
18 days
1958
20 days
1959
17 days
1960
18 days
1961
23 days
1962
23 days
1963
23 days
1964
23 days
1965
11 days
1966
16 days
1967
23 days
1968
15 days
1969
25 days
1970
13 days
1971
12 days
1972
16 days
1973
16 days
1974
14 days
1975
20 days
1976
16 days
1977
13 days
1978
19 days
1979
17 days
1980
16 days
1981
27 days
1982
21 days
1983
13 days
1984
21 days
1985
11 days
1986
18 days
1987
15 days
1988
14 days
1989
21 days
1990
29 days
1991
16 days
1992
24 days
1993
26 days
1994
22 days
1995
13 days
1996
13 days
1997
21 days
1998
29 days
1999
21 days
2000
14 days
2001
16 days
2002
23 days
2003
18 days
2004
16 days
2005
20 days
2006
16 days
2007
25 days
2008
13 days
2009
17 days
2010
21 days
2011
26 days
2012
13 days
2013
13 days
2014
11 days
2015
12 days
2016
11 days
2017
12 days
2018
8 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
61 years with a frost
Across 61 years with a frost, the median last spring frost at Mellen 4 NE falls on 3 June and the median first autumn frost on 18 September, which leaves a median of 109 days between them.
In 1976 to 2010 the median growing season was 118 days. That is 18 days more than in 1930 to 1974.
Fitted over all years, the growing season changes by +4.7 days per decade at this station.
Frost dates and growing season at Mellen 4 NE
Measure
Median, all years
Earliest period (1930 to 1974)
Recent period (1976 to 2010)
Recent against earliest
Fitted trend
Last spring frost
3 June
6 June
29 May
8 days earlier
-1.1 days per decade
First autumn frost
18 September
12 September
24 September
12 days later
+3.5 days per decade
Growing days
109 days
100 days
118 days
18 days more
+4.7 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
71 years, 1928 to 2013
A day with at least 53.0 mm (2.1 in) of rain is expected about once in 2 years. A day with at least 159.6 mm (6.3 in) of rain is expected about once in 100 years.
Rainfall return levels at Mellen 4 NE: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
53.0 mm (2.1 in)
5 years
73.7 mm (2.9 in)
10 years
90.0 mm (3.5 in)
25 years
114.4 mm (4.5 in)
50 years
135.6 mm (5.3 in)
100 years
159.6 mm (6.3 in)
Longer than the 71 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, 71 years of values from 1928 to 2013.
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: 147.8 mm (5.8 in) in 1932; 141.2 mm (5.6 in) in 2013; 135.6 mm (5.3 in) in 2005.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Mellen 4 NE, at 1985. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1985 ran 0.3 C (0.6 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at Mellen 4 NE, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1985
-0.3
-0.6
likely
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 Mellen 4 NE standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Mellen 4 NE 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.