Record envelope, standing records and threshold days for Grand Marais 2 E (USW00014859), Michigan, United States, with 67 years of record.
Key Facts for Grand Marais 2 E
Grand Marais 2 E (USW00014859) is a weather station in Michigan, United States at 46.67 latitude and -85.95 longitude, 190 m (624 ft) above sea level.
The station reports from 1940 to 2006, 67 years of record.
1,464 records set at Grand Marais 2 E still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Grand Marais 2 E set a daily record snow depth of 2.5 cm (1.0 in) on 13 October 2006.
About the Station
Location: Michigan, United States, 46.67 latitude, -85.95 longitude.
Elevation: 190 m (624 ft).
Period of record: 1940 to 2006, 67 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 Grand Marais 2 E. 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 Grand Marais 2 E, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
11.1 C (52.0 F)
-33.3 C (-27.9 F)
n/a
n/a
Feb
13.3 C (55.9 F)
-35.0 C (-31.0 F)
n/a
n/a
Mar
23.9 C (75.0 F)
-33.9 C (-29.0 F)
n/a
n/a
Apr
32.2 C (90.0 F)
-25.0 C (-13.0 F)
n/a
n/a
May
33.3 C (91.9 F)
-9.4 C (15.1 F)
n/a
n/a
Jun
36.1 C (97.0 F)
-5.0 C (23.0 F)
n/a
n/a
Jul
37.2 C (99.0 F)
-1.1 C (30.0 F)
n/a
n/a
Aug
37.2 C (99.0 F)
-1.7 C (28.9 F)
n/a
n/a
Sep
35.6 C (96.1 F)
-6.1 C (21.0 F)
n/a
n/a
Oct
28.9 C (84.0 F)
-9.4 C (15.1 F)
n/a
n/a
Nov
21.7 C (71.1 F)
-25.6 C (-14.1 F)
n/a
n/a
Dec
14.4 C (57.9 F)
-27.2 C (-17.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Grand Marais 2 E still stand. 1950 holds the most, with 61.
Standing records at Grand Marais 2 E by the year they were set
Year set
Standing records
1940
23
1941
17
1942
21
1943
25
1944
20
1945
18
1946
24
1947
36
1948
35
1949
20
1950
61
1951
44
1952
26
1953
30
1954
24
1955
33
1956
41
1957
22
1958
41
1959
38
1960
11
1961
15
1962
14
1963
34
1964
23
1965
21
1966
17
1967
22
1968
22
1969
14
1970
12
1971
12
1972
18
1973
16
1974
16
1975
21
1976
24
1977
20
1978
10
1979
23
1980
14
1981
15
1982
19
1983
28
1984
19
1985
14
1986
14
1987
26
1988
20
1989
23
1990
21
1991
35
1992
15
1993
11
1994
21
1995
21
1996
14
1997
16
1998
22
1999
20
2000
21
2001
16
2002
19
2003
14
2004
10
2005
21
2006
11
All-Time Record Progression
2 new records
2 all-time records were set at Grand Marais 2 E between 16 January 1975 and 11 July 1982. Each dot is a new record.
When Grand Marais 2 E set new all-time records
Date
Kind
Detail
1975-01-16
Record daily snowfall
Record daily snowfall 58.9 cm (23.2 in)
1982-07-11
Record daily precipitation
Record daily precipitation 76.2 mm (3.0 in)
Wettest Day of Each Month
Jul: 76.2 mm (3.0 in)
The wettest day on record for each calendar month at Grand Marais 2 E. The most was 76.2 mm (3.0 in) on 11 July 1982.
Record daily precipitation for each month at Grand Marais 2 E
Month
Record daily precipitation (mm)
Date
Jan
24.6 mm (1.0 in)
18 January 1996
Feb
31.2 mm (1.2 in)
14 February 1950
Mar
45.0 mm (1.8 in)
8 March 1950
Apr
60.7 mm (2.4 in)
26 April 1954
May
51.3 mm (2.0 in)
5 May 1949
Jun
60.5 mm (2.4 in)
21 June 1943
Jul
76.2 mm (3.0 in)
11 July 1982
Aug
73.2 mm (2.9 in)
19 August 1983
Sep
72.9 mm (2.9 in)
18 September 1947
Oct
61.7 mm (2.4 in)
15 October 1966
Nov
43.4 mm (1.7 in)
1 November 1945
Dec
40.1 mm (1.6 in)
14 December 1975
Period of Record Coverage
1940 to 2006
Complete yearUnder 90 percent of days
67 years of record at Grand Marais 2 E, 1940 to 2006. 2 years have data for under 90 percent of days and are left out of rankings: 1945, 2006.
Cooler than the station meanWarmer than the station mean
One stripe for each of 58 complete years at Grand Marais 2 E, 1940 to 2004. Blue stripes are years cooler than the station's own mean of 5.1 C (41.2 F); red stripes are warmer. The coolest year was 1950, at 2.7 C (36.8 F), and the warmest was 1998, at 7.2 C (45.0 F). The strongest colour marks a difference of 2.5 C (4.5 F).
Annual mean temperature at Grand Marais 2 E as warming stripes, 1940 to 2004
Year
Annual mean temperature
Difference from the station mean
1940
5.1 C
-0.07 C
1941
6.5 C
+1.32 C
1942
5.9 C
+0.76 C
1943
4.7 C
-0.41 C
1944
6.1 C
+0.94 C
1946
6.2 C
+1.03 C
1947
5.4 C
+0.22 C
1948
4.1 C
-1.01 C
1949
5.1 C
-0.06 C
1950
2.7 C
-2.46 C
1951
3.6 C
-1.56 C
1952
4.8 C
-0.31 C
1953
5.3 C
+0.13 C
1954
4.1 C
-1.08 C
1955
5.0 C
-0.18 C
1956
3.6 C
-1.53 C
1957
3.6 C
-1.50 C
1958
3.6 C
-1.54 C
1959
4.1 C
-1.06 C
1962
5.0 C
-0.11 C
1963
5.2 C
+0.08 C
1964
6.0 C
+0.88 C
1967
4.5 C
-0.65 C
1968
5.5 C
+0.33 C
1969
5.3 C
+0.16 C
1970
5.2 C
+0.11 C
1971
5.3 C
+0.19 C
1972
3.7 C
-1.48 C
1973
6.4 C
+1.26 C
1974
5.0 C
-0.09 C
1975
5.9 C
+0.78 C
1976
5.0 C
-0.11 C
1977
5.4 C
+0.29 C
1979
4.0 C
-1.17 C
1981
4.9 C
-0.26 C
1982
4.3 C
-0.82 C
1983
5.2 C
+0.09 C
1984
5.8 C
+0.64 C
1985
5.1 C
-0.07 C
1986
5.9 C
+0.80 C
1987
7.2 C
+2.05 C
1988
5.6 C
+0.51 C
1989
4.6 C
-0.53 C
1990
6.3 C
+1.19 C
1991
6.2 C
+1.07 C
1992
4.9 C
-0.21 C
1993
4.8 C
-0.30 C
1994
4.9 C
-0.26 C
1995
5.3 C
+0.14 C
1996
3.7 C
-1.40 C
1997
4.9 C
-0.21 C
1998
7.2 C
+2.07 C
1999
6.3 C
+1.16 C
2000
5.5 C
+0.32 C
2001
6.5 C
+1.36 C
2002
5.8 C
+0.65 C
2003
4.8 C
-0.31 C
2004
5.4 C
+0.25 C
The annual mean temperature here has risen by 0.13 C (0.01 to 0.26) per decade over 1940 to 2004. In Fahrenheit: 0.24 F (0.01 to 0.46) per decade. The slope is a straight line fitted to 58 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Grand Marais 2 E
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.13 C (0.01 to 0.26) per decade
0.24 F (0.01 to 0.46) per decade
1940 to 2004
58
Rise
Mean daily maximum
0.3 C (0.2 to 0.4) per decade
0.5 F (0.3 to 0.8) per decade
1940 to 2004
58
Rise
Mean daily minimum
-0.03 C (-0.18 to 0.13) per decade
-0.1 F (-0.3 to 0.2) per decade
1940 to 2004
58
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
1940 to 2006
Yearly extremes at Grand Marais 2 E: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
37.2 C (99.0 F)
1947
33.3 C (91.9 F)
67
Coldest night (TNn)
-35.0 C (-31.0 F)
1958
-24.4 C (-11.9 F)
67
Wettest day (Rx1day)
76.2 mm (3.0 in)
1982
44.5 mm (1.8 in)
67
Wettest five days (Rx5day)
149.4 mm (5.9 in)
1960
66.0 mm (2.6 in)
67
Longest dry spell (CDD)
39 days
1986
18 days
67
Hottest day (TXx)
The hottest day of the year at Grand Marais 2 E, 1940 to 2006. The record is 37.2 C (99.0 F) in 1947, marked on the chart; the median year is 33.3 C (91.9 F).
Hottest day (TXx) at Grand Marais 2 E by year
Year
Hottest day (TXx)
1940
32.2 C (90.0 F)
1941
32.2 C (90.0 F)
1942
34.4 C (93.9 F)
1943
32.2 C (90.0 F)
1944
33.9 C (93.0 F)
1945
32.8 C (91.0 F)
1946
32.2 C (90.0 F)
1947
37.2 C (99.0 F)
1948
35.6 C (96.1 F)
1949
34.4 C (93.9 F)
1950
30.6 C (87.1 F)
1951
29.4 C (84.9 F)
1952
32.2 C (90.0 F)
1953
35.6 C (96.1 F)
1954
31.1 C (88.0 F)
1955
33.9 C (93.0 F)
1956
34.4 C (93.9 F)
1957
33.3 C (91.9 F)
1958
32.8 C (91.0 F)
1959
32.8 C (91.0 F)
1960
31.1 C (88.0 F)
1961
32.2 C (90.0 F)
1962
32.2 C (90.0 F)
1963
36.7 C (98.1 F)
1964
33.3 C (91.9 F)
1965
28.9 C (84.0 F)
1966
33.9 C (93.0 F)
1967
31.1 C (88.0 F)
1968
32.2 C (90.0 F)
1969
32.8 C (91.0 F)
1970
31.7 C (89.1 F)
1971
33.9 C (93.0 F)
1972
31.1 C (88.0 F)
1973
34.4 C (93.9 F)
1974
33.3 C (91.9 F)
1975
33.3 C (91.9 F)
1976
35.0 C (95.0 F)
1977
32.8 C (91.0 F)
1978
31.7 C (89.1 F)
1979
30.0 C (86.0 F)
1980
30.0 C (86.0 F)
1981
32.2 C (90.0 F)
1982
30.6 C (87.1 F)
1983
36.1 C (97.0 F)
1984
30.6 C (87.1 F)
1985
30.6 C (87.1 F)
1986
33.9 C (93.0 F)
1987
34.4 C (93.9 F)
1988
37.2 C (99.0 F)
1989
34.4 C (93.9 F)
1990
33.3 C (91.9 F)
1991
36.1 C (97.0 F)
1992
31.7 C (89.1 F)
1993
33.3 C (91.9 F)
1994
32.2 C (90.0 F)
1995
35.0 C (95.0 F)
1996
32.8 C (91.0 F)
1997
33.9 C (93.0 F)
1998
33.3 C (91.9 F)
1999
35.6 C (96.1 F)
2000
33.3 C (91.9 F)
2001
33.3 C (91.9 F)
2002
35.6 C (96.1 F)
2003
32.8 C (91.0 F)
2004
28.9 C (84.0 F)
2005
34.4 C (93.9 F)
2006
34.4 C (93.9 F)
Coldest night (TNn)
The coldest night of the year at Grand Marais 2 E, 1940 to 2006. The record is -35.0 C (-31.0 F) in 1958, marked on the chart; the median year is -24.4 C (-11.9 F).
Coldest night (TNn) at Grand Marais 2 E by year
Year
Coldest night (TNn)
1940
-17.8 C (0.0 F)
1941
-19.4 C (-2.9 F)
1942
-26.7 C (-16.1 F)
1943
-28.3 C (-18.9 F)
1944
-17.8 C (0.0 F)
1945
-24.4 C (-11.9 F)
1946
-21.7 C (-7.1 F)
1947
-21.1 C (-6.0 F)
1948
-33.9 C (-29.0 F)
1949
-23.9 C (-11.0 F)
1950
-29.4 C (-20.9 F)
1951
-27.8 C (-18.0 F)
1952
-29.4 C (-20.9 F)
1953
-27.2 C (-17.0 F)
1954
-23.3 C (-9.9 F)
1955
-24.4 C (-11.9 F)
1956
-26.7 C (-16.1 F)
1957
-27.8 C (-18.0 F)
1958
-35.0 C (-31.0 F)
1959
-31.7 C (-25.1 F)
1960
-22.2 C (-8.0 F)
1961
-27.8 C (-18.0 F)
1962
-23.3 C (-9.9 F)
1963
-26.1 C (-15.0 F)
1964
-18.9 C (-2.0 F)
1965
-23.3 C (-9.9 F)
1966
-21.7 C (-7.1 F)
1967
-25.6 C (-14.1 F)
1968
-25.0 C (-13.0 F)
1969
-23.3 C (-9.9 F)
1970
-27.2 C (-17.0 F)
1971
-22.8 C (-9.0 F)
1972
-23.9 C (-11.0 F)
1973
-21.1 C (-6.0 F)
1974
-27.8 C (-18.0 F)
1975
-23.3 C (-9.9 F)
1976
-26.7 C (-16.1 F)
1977
-24.4 C (-11.9 F)
1978
-23.3 C (-9.9 F)
1979
-31.7 C (-25.1 F)
1980
-25.0 C (-13.0 F)
1981
-25.6 C (-14.1 F)
1982
-28.3 C (-18.9 F)
1983
-25.0 C (-13.0 F)
1984
-29.4 C (-20.9 F)
1985
-25.6 C (-14.1 F)
1986
-21.7 C (-7.1 F)
1987
-20.6 C (-5.1 F)
1988
-22.2 C (-8.0 F)
1989
-27.2 C (-17.0 F)
1990
-27.2 C (-17.0 F)
1991
-20.0 C (-4.0 F)
1992
-22.8 C (-9.0 F)
1993
-25.6 C (-14.1 F)
1994
-35.0 C (-31.0 F)
1995
-22.8 C (-9.0 F)
1996
-30.0 C (-22.0 F)
1997
-25.0 C (-13.0 F)
1998
-23.9 C (-11.0 F)
1999
-27.8 C (-18.0 F)
2000
-24.4 C (-11.9 F)
2001
-22.2 C (-8.0 F)
2002
-21.7 C (-7.1 F)
2003
-30.6 C (-23.1 F)
2004
-24.4 C (-11.9 F)
2005
-22.8 C (-9.0 F)
2006
-18.3 C (-0.9 F)
Wettest day (Rx1day)
The wettest day of the year at Grand Marais 2 E, 1940 to 2006. The record is 76.2 mm (3.0 in) in 1982, marked on the chart; the median year is 44.5 mm (1.8 in).
Wettest day (Rx1day) at Grand Marais 2 E by year
Year
Wettest day (Rx1day)
1940
35.8 mm (1.4 in)
1941
55.9 mm (2.2 in)
1942
33.0 mm (1.3 in)
1943
60.5 mm (2.4 in)
1944
47.2 mm (1.9 in)
1945
43.4 mm (1.7 in)
1946
34.0 mm (1.3 in)
1947
72.9 mm (2.9 in)
1948
34.3 mm (1.4 in)
1949
56.4 mm (2.2 in)
1950
45.0 mm (1.8 in)
1951
28.2 mm (1.1 in)
1952
30.0 mm (1.2 in)
1953
46.7 mm (1.8 in)
1954
60.7 mm (2.4 in)
1955
40.9 mm (1.6 in)
1956
42.2 mm (1.7 in)
1957
45.5 mm (1.8 in)
1958
18.8 mm (0.7 in)
1959
54.1 mm (2.1 in)
1960
50.8 mm (2.0 in)
1961
38.9 mm (1.5 in)
1962
23.6 mm (0.9 in)
1963
35.6 mm (1.4 in)
1964
70.4 mm (2.8 in)
1965
44.5 mm (1.8 in)
1966
61.7 mm (2.4 in)
1967
59.4 mm (2.3 in)
1968
39.9 mm (1.6 in)
1969
29.2 mm (1.1 in)
1970
49.3 mm (1.9 in)
1971
46.0 mm (1.8 in)
1972
30.5 mm (1.2 in)
1973
40.1 mm (1.6 in)
1974
35.1 mm (1.4 in)
1975
46.2 mm (1.8 in)
1976
48.5 mm (1.9 in)
1977
39.6 mm (1.6 in)
1978
49.8 mm (2.0 in)
1979
44.7 mm (1.8 in)
1980
43.7 mm (1.7 in)
1981
48.5 mm (1.9 in)
1982
76.2 mm (3.0 in)
1983
73.2 mm (2.9 in)
1984
31.0 mm (1.2 in)
1985
42.9 mm (1.7 in)
1986
60.2 mm (2.4 in)
1987
58.9 mm (2.3 in)
1988
29.7 mm (1.2 in)
1989
44.7 mm (1.8 in)
1990
43.4 mm (1.7 in)
1991
37.1 mm (1.5 in)
1992
44.7 mm (1.8 in)
1993
51.6 mm (2.0 in)
1994
29.7 mm (1.2 in)
1995
33.8 mm (1.3 in)
1996
28.7 mm (1.1 in)
1997
45.0 mm (1.8 in)
1998
34.5 mm (1.4 in)
1999
41.9 mm (1.6 in)
2000
51.8 mm (2.0 in)
2001
48.5 mm (1.9 in)
2002
57.2 mm (2.3 in)
2003
60.5 mm (2.4 in)
2004
31.0 mm (1.2 in)
2005
42.7 mm (1.7 in)
2006
31.2 mm (1.2 in)
Wettest five days (Rx5day)
The wettest five days of the year at Grand Marais 2 E, 1940 to 2006. The record is 149.4 mm (5.9 in) in 1960, marked on the chart; the median year is 66.0 mm (2.6 in).
Wettest five days (Rx5day) at Grand Marais 2 E by year
Year
Wettest five days (Rx5day)
1940
61.2 mm (2.4 in)
1941
40.6 mm (1.6 in)
1942
40.2 mm (1.6 in)
1943
99.8 mm (3.9 in)
1944
73.9 mm (2.9 in)
1945
54.3 mm (2.1 in)
1946
53.1 mm (2.1 in)
1947
50.6 mm (2.0 in)
1948
67.1 mm (2.6 in)
1949
83.1 mm (3.3 in)
1950
67.3 mm (2.6 in)
1951
55.9 mm (2.2 in)
1952
75.3 mm (3.0 in)
1953
77.9 mm (3.1 in)
1954
66.8 mm (2.6 in)
1955
76.7 mm (3.0 in)
1956
64.9 mm (2.6 in)
1957
75.0 mm (3.0 in)
1958
43.7 mm (1.7 in)
1959
105.4 mm (4.1 in)
1960
149.4 mm (5.9 in)
1961
51.1 mm (2.0 in)
1962
33.3 mm (1.3 in)
1963
57.7 mm (2.3 in)
1964
79.8 mm (3.1 in)
1965
53.4 mm (2.1 in)
1966
72.4 mm (2.9 in)
1967
79.2 mm (3.1 in)
1968
74.4 mm (2.9 in)
1969
43.4 mm (1.7 in)
1970
66.0 mm (2.6 in)
1971
66.3 mm (2.6 in)
1972
62.5 mm (2.5 in)
1973
84.3 mm (3.3 in)
1974
58.4 mm (2.3 in)
1975
95.8 mm (3.8 in)
1976
57.2 mm (2.3 in)
1977
73.1 mm (2.9 in)
1978
80.6 mm (3.2 in)
1979
101.1 mm (4.0 in)
1980
55.9 mm (2.2 in)
1981
58.7 mm (2.3 in)
1982
86.1 mm (3.4 in)
1983
88.9 mm (3.5 in)
1984
40.4 mm (1.6 in)
1985
50.5 mm (2.0 in)
1986
105.7 mm (4.2 in)
1987
68.1 mm (2.7 in)
1988
64.7 mm (2.5 in)
1989
63.7 mm (2.5 in)
1990
82.1 mm (3.2 in)
1991
43.7 mm (1.7 in)
1992
125.7 mm (4.9 in)
1993
61.5 mm (2.4 in)
1994
54.6 mm (2.1 in)
1995
47.7 mm (1.9 in)
1996
61.5 mm (2.4 in)
1997
67.6 mm (2.7 in)
1998
66.3 mm (2.6 in)
1999
70.3 mm (2.8 in)
2000
53.6 mm (2.1 in)
2001
62.3 mm (2.5 in)
2002
80.3 mm (3.2 in)
2003
86.2 mm (3.4 in)
2004
41.4 mm (1.6 in)
2005
44.7 mm (1.8 in)
2006
40.9 mm (1.6 in)
Longest dry spell (CDD)
The longest dry spell of the year at Grand Marais 2 E, 1940 to 2006. The record is 39 days in 1986, marked on the chart; the median year is 18 days.
Longest dry spell (CDD) at Grand Marais 2 E by year
Year
Longest dry spell (CDD)
1940
18 days
1941
3 days
1942
7 days
1943
23 days
1944
16 days
1945
25 days
1946
12 days
1947
17 days
1948
27 days
1949
19 days
1950
11 days
1951
11 days
1952
12 days
1953
18 days
1954
23 days
1955
19 days
1956
24 days
1957
18 days
1958
19 days
1959
31 days
1960
13 days
1961
16 days
1962
20 days
1963
27 days
1964
13 days
1965
18 days
1966
20 days
1967
26 days
1968
19 days
1969
23 days
1970
13 days
1971
13 days
1972
22 days
1973
16 days
1974
12 days
1975
18 days
1976
21 days
1977
19 days
1978
17 days
1979
20 days
1980
18 days
1981
19 days
1982
17 days
1983
22 days
1984
20 days
1985
10 days
1986
39 days
1987
16 days
1988
16 days
1989
37 days
1990
18 days
1991
20 days
1992
30 days
1993
19 days
1994
17 days
1995
17 days
1996
20 days
1997
14 days
1998
17 days
1999
31 days
2000
18 days
2001
11 days
2002
14 days
2003
17 days
2004
16 days
2005
16 days
2006
19 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
58 years with a frost
Across 58 years with a frost, the median last spring frost at Grand Marais 2 E falls on 9 June and the median first autumn frost on 23 September, which leaves a median of 107 days between them.
Fitted over all years, the growing season changes by -2.9 days per decade at this station.
Frost dates and growing season at Grand Marais 2 E
Measure
Median, all years
Earliest period
Recent period (1973 to 2004)
Recent against earliest
Fitted trend
Last spring frost
9 June
n/a
11 June
n/a
+1.9 days per decade
First autumn frost
23 September
n/a
23 September
n/a
-1.0 days per decade
Growing days
107 days
n/a
104 days
n/a
-2.9 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
59 years, 1940 to 2004
A day with at least 43.0 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 76.8 mm (3.0 in) of rain is expected about once in 100 years.
Rainfall return levels at Grand Marais 2 E: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
43.0 mm (1.7 in)
5 years
54.0 mm (2.1 in)
10 years
60.4 mm (2.4 in)
25 years
67.7 mm (2.7 in)
50 years
72.5 mm (2.9 in)
100 years
76.8 mm (3.0 in)
Longer than the 59 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, 59 years of values from 1940 to 2004.
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: 73.2 mm (2.9 in) in 1983; 72.9 mm (2.9 in) in 1947; 70.4 mm (2.8 in) in 1964.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Grand Marais 2 E, at 1977. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1977 ran 0.4 C (0.7 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at Grand Marais 2 E, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1977
-0.4
-0.7
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 Grand Marais 2 E standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Grand Marais 2 E 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.