Record envelope, standing records and threshold days for Isle 12N (USC00214103), Minnesota, United States, with 65 years of record.
Key Facts for Isle 12N
Isle 12N (USC00214103) is a weather station in Minnesota, United States at 46.32 latitude and -93.50 longitude, 392 m (1,285 ft) above sea level.
The station reports from 1959 to 2023, 65 years of record.
1,464 records set at Isle 12N still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Isle 12N set a daily record low maximum temperature of -10.0 C (14.0 F) on 18 March 2023.
About the Station
Location: Minnesota, United States, 46.32 latitude, -93.50 longitude.
Elevation: 392 m (1,285 ft).
Period of record: 1959 to 2023, 65 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 Isle 12N. 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 Isle 12N, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
13.3 C (55.9 F)
-42.8 C (-45.0 F)
n/a
n/a
Feb
13.9 C (57.0 F)
-42.2 C (-44.0 F)
n/a
n/a
Mar
24.4 C (75.9 F)
-35.6 C (-32.1 F)
n/a
n/a
Apr
33.9 C (93.0 F)
-21.1 C (-6.0 F)
n/a
n/a
May
33.3 C (91.9 F)
-10.6 C (12.9 F)
n/a
n/a
Jun
35.6 C (96.1 F)
-2.2 C (28.0 F)
n/a
n/a
Jul
37.2 C (99.0 F)
1.7 C (35.1 F)
n/a
n/a
Aug
37.2 C (99.0 F)
-0.6 C (30.9 F)
n/a
n/a
Sep
35.6 C (96.1 F)
-7.8 C (18.0 F)
n/a
n/a
Oct
29.4 C (84.9 F)
-15.6 C (3.9 F)
n/a
n/a
Nov
23.3 C (73.9 F)
-31.7 C (-25.1 F)
n/a
n/a
Dec
12.2 C (54.0 F)
-43.3 C (-45.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Isle 12N still stand. 1976 holds the most, with 52.
Standing records at Isle 12N by the year they were set
Year set
Standing records
1963
19
1964
28
1965
46
1966
33
1967
32
1968
33
1969
30
1970
21
1971
18
1972
32
1973
22
1974
40
1975
15
1976
52
1977
16
1978
14
1979
21
1980
20
1981
18
1983
33
1984
32
1985
25
1986
14
1987
31
1988
40
1989
31
1990
18
1991
32
1992
28
1993
26
1994
20
1995
15
1996
27
1997
16
1998
26
1999
17
2000
26
2001
12
2002
24
2003
28
2004
23
2005
32
2006
20
2007
24
2008
13
2009
21
2010
22
2011
20
2012
33
2013
19
2014
31
2015
29
2016
14
2017
23
2018
22
2019
17
2020
19
2021
34
2022
14
2023
3
All-Time Record Progression
6 new records
6 all-time records were set at Isle 12N between 19 January 1994 and 19 April 2013. Each dot is a new record.
When Isle 12N set new all-time records
Date
Kind
Detail
1994-01-19
Record low maximum temperature
Record low maximum temperature -29.4 C (-20.9 F)
1996-02-03
Record low maximum temperature
Record low maximum temperature -30.0 C (-22.0 F)
1996-06-29
Record high minimum temperature
Record high minimum temperature 23.3 C (73.9 F)
1999-07-05
Record high minimum temperature
Record high minimum temperature 25.0 C (77.0 F)
2006-07-17
Record high minimum temperature
Record high minimum temperature 25.6 C (78.1 F)
2013-04-19
Record daily snowfall
Record daily snowfall 34.3 cm (13.5 in)
Wettest Day of Each Month
Jul: 248.9 mm (9.8 in)
The wettest day on record for each calendar month at Isle 12N. The most was 248.9 mm (9.8 in) on 22 July 1972.
Record daily precipitation for each month at Isle 12N
Month
Record daily precipitation (mm)
Date
Jan
20.3 mm (0.8 in)
2 January 1976
Feb
21.1 mm (0.8 in)
10 February 1965
Mar
39.1 mm (1.5 in)
29 March 2020
Apr
50.8 mm (2.0 in)
23 April 1985
May
69.9 mm (2.8 in)
10 May 1979
Jun
102.9 mm (4.1 in)
3 June 1990
Jul
248.9 mm (9.8 in)
22 July 1972
Aug
97.8 mm (3.9 in)
25 August 1995
Sep
122.4 mm (4.8 in)
30 September 2019
Oct
70.6 mm (2.8 in)
5 October 2005
Nov
50.8 mm (2.0 in)
17 November 1996
Dec
78.7 mm (3.1 in)
15 December 1984
Period of Record Coverage
1963 to 2023
Complete yearUnder 90 percent of days
60 years of record at Isle 12N, 1963 to 2023. 11 years have data for under 90 percent of days and are left out of rankings: 1963, 1977, 1978, 1981, 1983, 1990, 2000, 2001 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 42 complete years at Isle 12N, 1964 to 2022. 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 1996, at 2.6 C (36.6 F), and the warmest was 1987, at 7.1 C (44.7 F). The strongest colour marks a difference of 2.5 C (4.5 F).
Annual mean temperature at Isle 12N as warming stripes, 1964 to 2022
Year
Annual mean temperature
Difference from the station mean
1964
5.0 C
+0.35 C
1965
3.4 C
-1.25 C
1966
3.8 C
-0.79 C
1968
5.0 C
+0.36 C
1969
4.4 C
-0.24 C
1970
4.0 C
-0.59 C
1971
4.3 C
-0.36 C
1972
3.1 C
-1.54 C
1973
5.4 C
+0.80 C
1974
4.1 C
-0.57 C
1975
4.1 C
-0.53 C
1976
3.8 C
-0.82 C
1979
2.7 C
-1.88 C
1984
4.7 C
+0.12 C
1985
3.3 C
-1.37 C
1986
4.7 C
+0.07 C
1987
7.1 C
+2.44 C
1988
4.5 C
-0.08 C
1989
3.1 C
-1.49 C
1991
4.6 C
-0.07 C
1995
3.9 C
-0.72 C
1996
2.6 C
-2.06 C
1997
4.2 C
-0.42 C
1998
7.0 C
+2.34 C
2002
5.2 C
+0.56 C
2003
4.9 C
+0.28 C
2004
4.7 C
+0.10 C
2005
5.8 C
+1.20 C
2006
6.4 C
+1.78 C
2007
5.3 C
+0.68 C
2008
3.6 C
-1.00 C
2009
4.2 C
-0.47 C
2010
5.8 C
+1.21 C
2011
5.3 C
+0.67 C
2012
6.7 C
+2.11 C
2014
3.0 C
-1.63 C
2015
6.4 C
+1.74 C
2018
4.4 C
-0.20 C
2019
3.8 C
-0.84 C
2020
5.4 C
+0.78 C
2021
6.4 C
+1.73 C
2022
4.1 C
-0.56 C
The annual mean temperature here has risen by 0.21 C (0.01 to 0.40) per decade over 1964 to 2022. In Fahrenheit: 0.37 F (0.03 to 0.71) per decade. The slope is a straight line fitted to 42 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Isle 12N
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.21 C (0.01 to 0.40) per decade
0.37 F (0.03 to 0.71) per decade
1964 to 2022
42
Rise
Mean daily maximum
-0.02 C (-0.22 to 0.18) per decade
-0.03 F (-0.40 to 0.33) per decade
1964 to 2022
42
Not clearly different from zero
Mean daily minimum
0.4 C (0.2 to 0.6) per decade
0.8 F (0.4 to 1.1) per decade
1964 to 2022
42
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
1959 to 2023
Yearly extremes at Isle 12N: 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)
1976
32.8 C (91.0 F)
60
Coldest night (TNn)
-43.3 C (-45.9 F)
1983
-33.3 C (-28.0 F)
60
Wettest day (Rx1day)
248.9 mm (9.8 in)
1972
56.9 mm (2.2 in)
64
Wettest five days (Rx5day)
384.8 mm (15.1 in)
1972
81.2 mm (3.2 in)
64
Longest dry spell (CDD)
54 days
1961
26 days
64
Hottest day (TXx)
The hottest day of the year at Isle 12N, 1959 to 2023. The record is 37.2 C (99.0 F) in 1976, marked on the chart; the median year is 32.8 C (91.0 F).
Hottest day (TXx) at Isle 12N by year
Year
Hottest day (TXx)
1959
n/a
1960
n/a
1961
n/a
1962
n/a
1963
34.4 C (93.9 F)
1964
34.4 C (93.9 F)
1965
32.2 C (90.0 F)
1966
32.2 C (90.0 F)
1967
31.1 C (88.0 F)
1968
32.2 C (90.0 F)
1969
32.8 C (91.0 F)
1970
33.3 C (91.9 F)
1971
32.8 C (91.0 F)
1972
32.8 C (91.0 F)
1973
32.8 C (91.0 F)
1974
35.0 C (95.0 F)
1975
34.4 C (93.9 F)
1976
37.2 C (99.0 F)
1977
30.6 C (87.1 F)
1978
32.2 C (90.0 F)
1979
31.7 C (89.1 F)
1980
35.0 C (95.0 F)
1981
31.1 C (88.0 F)
1983
33.9 C (93.0 F)
1984
34.4 C (93.9 F)
1985
31.7 C (89.1 F)
1986
33.3 C (91.9 F)
1987
34.4 C (93.9 F)
1988
37.2 C (99.0 F)
1989
34.4 C (93.9 F)
1990
30.6 C (87.1 F)
1991
32.8 C (91.0 F)
1992
30.6 C (87.1 F)
1993
30.0 C (86.0 F)
1994
35.6 C (96.1 F)
1995
32.2 C (90.0 F)
1996
31.7 C (89.1 F)
1997
29.4 C (84.9 F)
1998
31.7 C (89.1 F)
1999
33.3 C (91.9 F)
2000
32.2 C (90.0 F)
2001
32.2 C (90.0 F)
2002
32.8 C (91.0 F)
2003
31.7 C (89.1 F)
2004
32.8 C (91.0 F)
2005
33.9 C (93.0 F)
2006
37.2 C (99.0 F)
2007
33.9 C (93.0 F)
2008
30.0 C (86.0 F)
2009
31.7 C (89.1 F)
2010
31.7 C (89.1 F)
2011
34.4 C (93.9 F)
2012
35.0 C (95.0 F)
2013
33.9 C (93.0 F)
2014
31.7 C (89.1 F)
2015
31.7 C (89.1 F)
2016
32.2 C (90.0 F)
2017
31.7 C (89.1 F)
2018
33.3 C (91.9 F)
2019
32.2 C (90.0 F)
2020
33.3 C (91.9 F)
2021
34.4 C (93.9 F)
2022
34.4 C (93.9 F)
2023
7.2 C (45.0 F)
Coldest night (TNn)
The coldest night of the year at Isle 12N, 1959 to 2023. The record is -43.3 C (-45.9 F) in 1983, marked on the chart; the median year is -33.3 C (-28.0 F).
Coldest night (TNn) at Isle 12N by year
Year
Coldest night (TNn)
1959
n/a
1960
n/a
1961
n/a
1962
n/a
1963
-31.7 C (-25.1 F)
1964
-31.7 C (-25.1 F)
1965
-40.6 C (-41.1 F)
1966
-37.8 C (-36.0 F)
1967
-42.8 C (-45.0 F)
1968
-38.3 C (-36.9 F)
1969
-33.9 C (-29.0 F)
1970
-40.0 C (-40.0 F)
1971
-39.4 C (-38.9 F)
1972
-42.8 C (-45.0 F)
1973
-37.8 C (-36.0 F)
1974
-38.9 C (-38.0 F)
1975
-35.6 C (-32.1 F)
1976
-37.8 C (-36.0 F)
1977
-41.1 C (-42.0 F)
1978
-34.4 C (-29.9 F)
1979
-39.4 C (-38.9 F)
1980
-34.4 C (-29.9 F)
1981
-32.8 C (-27.0 F)
1983
-43.3 C (-45.9 F)
1984
-36.7 C (-34.1 F)
1985
-33.9 C (-29.0 F)
1986
-32.2 C (-26.0 F)
1987
-32.2 C (-26.0 F)
1988
-35.6 C (-32.1 F)
1989
-37.2 C (-35.0 F)
1990
-31.1 C (-24.0 F)
1991
-31.7 C (-25.1 F)
1992
-31.7 C (-25.1 F)
1993
-31.1 C (-24.0 F)
1994
-37.8 C (-36.0 F)
1995
-30.6 C (-23.1 F)
1996
-42.2 C (-44.0 F)
1997
-32.8 C (-27.0 F)
1998
-30.6 C (-23.1 F)
1999
-27.8 C (-18.0 F)
2000
-28.9 C (-20.0 F)
2001
-26.7 C (-16.1 F)
2002
-25.6 C (-14.1 F)
2003
-29.4 C (-20.9 F)
2004
-35.6 C (-32.1 F)
2005
-36.7 C (-34.1 F)
2006
-28.9 C (-20.0 F)
2007
-31.7 C (-25.1 F)
2008
-31.1 C (-24.0 F)
2009
-35.0 C (-31.0 F)
2010
-32.8 C (-27.0 F)
2011
-36.1 C (-33.0 F)
2012
-27.2 C (-17.0 F)
2013
-32.8 C (-27.0 F)
2014
-32.2 C (-26.0 F)
2015
-32.2 C (-26.0 F)
2016
-30.6 C (-23.1 F)
2017
-32.8 C (-27.0 F)
2018
-32.8 C (-27.0 F)
2019
-39.4 C (-38.9 F)
2020
-30.0 C (-22.0 F)
2021
-36.7 C (-34.1 F)
2022
-34.4 C (-29.9 F)
2023
-31.7 C (-25.1 F)
Wettest day (Rx1day)
The wettest day of the year at Isle 12N, 1959 to 2023. The record is 248.9 mm (9.8 in) in 1972, marked on the chart; the median year is 56.9 mm (2.2 in).
Wettest day (Rx1day) at Isle 12N by year
Year
Wettest day (Rx1day)
1959
11.4 mm (0.4 in)
1960
40.6 mm (1.6 in)
1961
37.8 mm (1.5 in)
1962
33.3 mm (1.3 in)
1963
53.6 mm (2.1 in)
1964
56.9 mm (2.2 in)
1965
33.5 mm (1.3 in)
1966
56.9 mm (2.2 in)
1967
40.6 mm (1.6 in)
1968
78.0 mm (3.1 in)
1969
34.3 mm (1.4 in)
1970
48.8 mm (1.9 in)
1971
59.4 mm (2.3 in)
1972
248.9 mm (9.8 in)
1973
44.7 mm (1.8 in)
1974
83.1 mm (3.3 in)
1975
87.9 mm (3.5 in)
1976
83.6 mm (3.3 in)
1977
44.5 mm (1.8 in)
1978
80.0 mm (3.1 in)
1979
69.9 mm (2.8 in)
1980
41.4 mm (1.6 in)
1981
59.9 mm (2.4 in)
1983
41.4 mm (1.6 in)
1984
93.0 mm (3.7 in)
1985
80.5 mm (3.2 in)
1986
92.7 mm (3.6 in)
1987
42.2 mm (1.7 in)
1988
53.3 mm (2.1 in)
1989
52.1 mm (2.1 in)
1990
102.9 mm (4.1 in)
1991
96.5 mm (3.8 in)
1992
48.3 mm (1.9 in)
1993
38.1 mm (1.5 in)
1994
94.0 mm (3.7 in)
1995
97.8 mm (3.9 in)
1996
50.8 mm (2.0 in)
1997
40.1 mm (1.6 in)
1998
39.4 mm (1.6 in)
1999
40.1 mm (1.6 in)
2000
36.8 mm (1.4 in)
2001
88.9 mm (3.5 in)
2002
101.1 mm (4.0 in)
2003
59.7 mm (2.4 in)
2004
39.4 mm (1.6 in)
2005
74.9 mm (2.9 in)
2006
23.1 mm (0.9 in)
2007
48.0 mm (1.9 in)
2008
40.4 mm (1.6 in)
2009
35.1 mm (1.4 in)
2010
73.2 mm (2.9 in)
2011
61.7 mm (2.4 in)
2012
87.4 mm (3.4 in)
2013
85.3 mm (3.4 in)
2014
54.4 mm (2.1 in)
2015
61.5 mm (2.4 in)
2016
127.8 mm (5.0 in)
2017
59.2 mm (2.3 in)
2018
123.4 mm (4.9 in)
2019
122.4 mm (4.8 in)
2020
85.9 mm (3.4 in)
2021
40.6 mm (1.6 in)
2022
67.8 mm (2.7 in)
2023
20.3 mm (0.8 in)
Wettest five days (Rx5day)
The wettest five days of the year at Isle 12N, 1959 to 2023. The record is 384.8 mm (15.1 in) in 1972, marked on the chart; the median year is 81.2 mm (3.2 in).
Wettest five days (Rx5day) at Isle 12N by year
Year
Wettest five days (Rx5day)
1959
18.1 mm (0.7 in)
1960
48.2 mm (1.9 in)
1961
58.9 mm (2.3 in)
1962
54.1 mm (2.1 in)
1963
84.1 mm (3.3 in)
1964
71.3 mm (2.8 in)
1965
60.7 mm (2.4 in)
1966
69.4 mm (2.7 in)
1967
76.7 mm (3.0 in)
1968
91.2 mm (3.6 in)
1969
39.0 mm (1.5 in)
1970
97.3 mm (3.8 in)
1971
89.4 mm (3.5 in)
1972
384.8 mm (15.1 in)
1973
130.4 mm (5.1 in)
1974
142.4 mm (5.6 in)
1975
169.4 mm (6.7 in)
1976
133.2 mm (5.2 in)
1977
62.2 mm (2.4 in)
1978
110.2 mm (4.3 in)
1979
76.2 mm (3.0 in)
1980
57.2 mm (2.3 in)
1981
83.2 mm (3.3 in)
1983
54.6 mm (2.1 in)
1984
110.5 mm (4.4 in)
1985
122.9 mm (4.8 in)
1986
110.2 mm (4.3 in)
1987
75.5 mm (3.0 in)
1988
96.3 mm (3.8 in)
1989
73.7 mm (2.9 in)
1990
109.6 mm (4.3 in)
1991
96.5 mm (3.8 in)
1992
58.5 mm (2.3 in)
1993
58.4 mm (2.3 in)
1994
99.1 mm (3.9 in)
1995
118.7 mm (4.7 in)
1996
50.8 mm (2.0 in)
1997
54.1 mm (2.1 in)
1998
64.8 mm (2.6 in)
1999
79.9 mm (3.1 in)
2000
55.8 mm (2.2 in)
2001
139.8 mm (5.5 in)
2002
171.7 mm (6.8 in)
2003
90.0 mm (3.5 in)
2004
52.9 mm (2.1 in)
2005
96.0 mm (3.8 in)
2006
45.0 mm (1.8 in)
2007
71.9 mm (2.8 in)
2008
65.8 mm (2.6 in)
2009
69.9 mm (2.8 in)
2010
116.1 mm (4.6 in)
2011
67.8 mm (2.7 in)
2012
137.3 mm (5.4 in)
2013
95.9 mm (3.8 in)
2014
75.0 mm (3.0 in)
2015
63.0 mm (2.5 in)
2016
181.9 mm (7.2 in)
2017
82.4 mm (3.2 in)
2018
135.1 mm (5.3 in)
2019
134.9 mm (5.3 in)
2020
120.6 mm (4.7 in)
2021
60.9 mm (2.4 in)
2022
95.3 mm (3.8 in)
2023
24.1 mm (0.9 in)
Longest dry spell (CDD)
The longest dry spell of the year at Isle 12N, 1959 to 2023. The record is 54 days in 1961, marked on the chart; the median year is 26 days.
Longest dry spell (CDD) at Isle 12N by year
Year
Longest dry spell (CDD)
1959
6 days
1960
30 days
1961
54 days
1962
29 days
1963
30 days
1964
27 days
1965
20 days
1966
26 days
1967
37 days
1968
40 days
1969
32 days
1970
25 days
1971
14 days
1972
22 days
1973
21 days
1974
19 days
1975
17 days
1976
28 days
1977
34 days
1978
36 days
1979
17 days
1980
54 days
1981
25 days
1983
18 days
1984
28 days
1985
20 days
1986
21 days
1987
22 days
1988
42 days
1989
28 days
1990
37 days
1991
49 days
1992
47 days
1993
37 days
1994
30 days
1995
22 days
1996
18 days
1997
26 days
1998
28 days
1999
26 days
2000
43 days
2001
17 days
2002
29 days
2003
33 days
2004
20 days
2005
22 days
2006
22 days
2007
26 days
2008
24 days
2009
34 days
2010
23 days
2011
27 days
2012
26 days
2013
19 days
2014
17 days
2015
21 days
2016
24 days
2017
16 days
2018
20 days
2019
20 days
2020
41 days
2021
21 days
2022
26 days
2023
10 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
42 years with a frost
Across 42 years with a frost, the median last spring frost at Isle 12N falls on 20 May and the median first autumn frost on 21 September, which leaves a median of 127 days between them.
Fitted over all years, the growing season changes by +6.3 days per decade at this station.
Frost dates and growing season at Isle 12N
Measure
Median, all years
Earliest period
Recent period (1979 to 2022)
Recent against earliest
Fitted trend
Last spring frost
20 May
n/a
17 May
n/a
-2.6 days per decade
First autumn frost
21 September
n/a
26 September
n/a
+3.6 days per decade
Growing days
127 days
n/a
133 days
n/a
+6.3 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
47 years, 1961 to 2022
A day with at least 59.2 mm (2.3 in) of rain is expected about once in 2 years. A day with at least 194.6 mm (7.7 in) of rain is expected about once in 100 years.
Rainfall return levels at Isle 12N: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
59.2 mm (2.3 in)
5 years
86.2 mm (3.4 in)
10 years
107.3 mm (4.2 in)
25 years
138.3 mm (5.4 in)
50 years
164.8 mm (6.5 in)
Longer than the 47 years of record
100 years
194.6 mm (7.7 in)
Longer than the 47 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, 47 years of values from 1961 to 2022.
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: 248.9 mm (9.8 in) in 1972; 123.4 mm (4.9 in) in 2018; 122.4 mm (4.8 in) in 2019.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Isle 12N, at 1979. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1979 ran 0.3 C (0.6 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at Isle 12N, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1979
-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.
Climate Twins
2005 to 2022 against 1961 to 1990
Over 2005 to 2022, Isle 12N had a mean temperature of 5.1 C (41.2 F) and 711.1 mm (28.0 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Arnprior Grandon (Canada, 1,328 km away), Rhinelander (United States, 323 km away) and Amery (United States, 144 km away).
Climate twins of Isle 12N: stations whose 1961 to 1990 climate is closest to its 2005 to 2022 climate
Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.
Download the Data
Data for Isle 12N standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Isle 12N 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.