Record envelope, standing records and threshold days for Trout Lake 1SW (USC00208293), Michigan, United States, with 70 years of record.
Key Facts for Trout Lake 1SW
Trout Lake 1SW (USC00208293) is a weather station in Michigan, United States at 46.18 latitude and -85.03 longitude, 251 m (823 ft) above sea level.
The station reports from 1948 to 2017, 70 years of record.
1,464 records set at Trout Lake 1SW still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Trout Lake 1SW set a daily record high maximum temperature of 26.7 C (80.1 F) on 28 September 2017.
About the Station
Location: Michigan, United States, 46.18 latitude, -85.03 longitude.
Elevation: 251 m (823 ft).
Period of record: 1948 to 2017, 70 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 Trout Lake 1SW. 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 Trout Lake 1SW, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
10.0 C (50.0 F)
-38.9 C (-38.0 F)
n/a
n/a
Feb
13.3 C (55.9 F)
-41.7 C (-43.1 F)
n/a
n/a
Mar
25.6 C (78.1 F)
-35.0 C (-31.0 F)
n/a
n/a
Apr
26.7 C (80.1 F)
-21.1 C (-6.0 F)
n/a
n/a
May
31.1 C (88.0 F)
-11.1 C (12.0 F)
n/a
n/a
Jun
32.8 C (91.0 F)
-5.6 C (21.9 F)
n/a
n/a
Jul
34.4 C (93.9 F)
-5.0 C (23.0 F)
n/a
n/a
Aug
35.6 C (96.1 F)
-2.2 C (28.0 F)
n/a
n/a
Sep
31.1 C (88.0 F)
-6.7 C (19.9 F)
n/a
n/a
Oct
26.7 C (80.1 F)
-9.4 C (15.1 F)
n/a
n/a
Nov
21.1 C (70.0 F)
-19.4 C (-2.9 F)
n/a
n/a
Dec
15.6 C (60.1 F)
-34.4 C (-29.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Trout Lake 1SW still stand. 1989 holds the most, with 88.
Standing records at Trout Lake 1SW by the year they were set
Year set
Standing records
1978
32
1979
59
1980
41
1981
46
1982
43
1983
64
1984
69
1985
5
1988
22
1989
88
1990
39
1991
60
1992
65
1993
52
1994
66
1995
18
1996
34
1997
39
1998
47
1999
46
2000
48
2001
42
2002
33
2003
20
2004
24
2005
54
2006
29
2007
49
2008
28
2009
14
2010
41
2011
18
2012
42
2013
23
2014
26
2016
5
2017
33
Wettest Day of Each Month
Aug: 110.0 mm (4.3 in)
The wettest day on record for each calendar month at Trout Lake 1SW. The most was 110.0 mm (4.3 in) on 9 August 2011.
Record daily precipitation for each month at Trout Lake 1SW
Month
Record daily precipitation (mm)
Date
Jan
47.8 mm (1.9 in)
19 January 1996
Feb
45.7 mm (1.8 in)
20 February 1994
Mar
101.6 mm (4.0 in)
24 March 1996
Apr
52.1 mm (2.1 in)
25 April 1995
May
45.7 mm (1.8 in)
31 May 1998
Jun
74.9 mm (2.9 in)
18 June 2012
Jul
80.8 mm (3.2 in)
24 July 2017
Aug
110.0 mm (4.3 in)
9 August 2011
Sep
68.6 mm (2.7 in)
24 September 2010
Oct
57.2 mm (2.3 in)
16 October 1982
Nov
42.9 mm (1.7 in)
17 November 2013
Dec
31.0 mm (1.2 in)
12 December 2010
Period of Record Coverage
1978 to 2017
Complete yearUnder 90 percent of days
37 years of record at Trout Lake 1SW, 1978 to 2017. 8 years have data for under 90 percent of days and are left out of rankings: 1978, 1985, 1988, 1995, 2001, 2014, 2016, 2017.
Cooler than the station meanWarmer than the station mean
One stripe for each of 29 complete years at Trout Lake 1SW, 1979 to 2013. Blue stripes are years cooler than the station's own mean of 5.2 C (41.3 F); red stripes are warmer. The coolest year was 1989, at 3.0 C (37.4 F), and the warmest was 2012, at 7.7 C (45.8 F). The strongest colour marks a difference of 2.5 C (4.5 F).
Annual mean temperature at Trout Lake 1SW as warming stripes, 1979 to 2013
Year
Annual mean temperature
Difference from the station mean
1979
3.8 C
-1.34 C
1980
3.9 C
-1.24 C
1981
4.5 C
-0.66 C
1982
4.0 C
-1.17 C
1983
4.2 C
-0.98 C
1984
4.0 C
-1.16 C
1989
3.0 C
-2.17 C
1990
4.9 C
-0.26 C
1991
5.2 C
+0.01 C
1992
3.5 C
-1.65 C
1993
3.2 C
-1.98 C
1994
3.9 C
-1.26 C
1996
4.2 C
-0.92 C
1997
4.5 C
-0.68 C
1998
7.1 C
+1.97 C
1999
6.4 C
+1.20 C
2000
6.0 C
+0.82 C
2001
6.9 C
+1.74 C
2003
5.2 C
+0.02 C
2004
5.3 C
+0.12 C
2005
6.5 C
+1.38 C
2006
7.0 C
+1.81 C
2007
6.3 C
+1.18 C
2008
5.1 C
-0.01 C
2009
4.9 C
-0.27 C
2010
7.1 C
+1.99 C
2011
6.2 C
+1.06 C
2012
7.7 C
+2.50 C
2013
5.1 C
-0.01 C
This station does not have enough complete years (30 are needed) to fit a temperature trend.
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
1948 to 2017
Yearly extremes at Trout Lake 1SW: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
35.6 C (96.1 F)
1991
31.1 C (88.0 F)
37
Coldest night (TNn)
-41.7 C (-43.1 F)
1979
-29.4 C (-20.9 F)
37
Wettest day (Rx1day)
110.0 mm (4.3 in)
2011
42.9 mm (1.7 in)
41
Wettest five days (Rx5day)
128.3 mm (5.1 in)
1996
65.4 mm (2.6 in)
40
Longest dry spell (CDD)
30 days
1980
15 days
41
Hottest day (TXx)
The hottest day of the year at Trout Lake 1SW, 1948 to 2017. The record is 35.6 C (96.1 F) in 1991, marked on the chart; the median year is 31.1 C (88.0 F).
Hottest day (TXx) at Trout Lake 1SW by year
Year
Hottest day (TXx)
1948
n/a
1949
n/a
1950
n/a
1951
n/a
1978
31.1 C (88.0 F)
1979
30.0 C (86.0 F)
1980
30.6 C (87.1 F)
1981
31.7 C (89.1 F)
1982
28.9 C (84.0 F)
1983
33.3 C (91.9 F)
1984
29.4 C (84.9 F)
1985
10.0 C (50.0 F)
1988
33.9 C (93.0 F)
1989
32.8 C (91.0 F)
1990
29.4 C (84.9 F)
1991
35.6 C (96.1 F)
1992
27.8 C (82.0 F)
1993
30.0 C (86.0 F)
1994
31.7 C (89.1 F)
1995
33.3 C (91.9 F)
1996
30.0 C (86.0 F)
1997
31.1 C (88.0 F)
1998
32.8 C (91.0 F)
1999
32.8 C (91.0 F)
2000
31.1 C (88.0 F)
2001
35.0 C (95.0 F)
2002
29.4 C (84.9 F)
2003
30.0 C (86.0 F)
2004
28.3 C (82.9 F)
2005
34.4 C (93.9 F)
2006
31.1 C (88.0 F)
2007
32.2 C (90.0 F)
2008
27.8 C (82.0 F)
2009
31.1 C (88.0 F)
2010
30.0 C (86.0 F)
2011
30.6 C (87.1 F)
2012
31.1 C (88.0 F)
2013
32.2 C (90.0 F)
2014
28.3 C (82.9 F)
2016
17.2 C (63.0 F)
2017
28.9 C (84.0 F)
Coldest night (TNn)
The coldest night of the year at Trout Lake 1SW, 1948 to 2017. The record is -41.7 C (-43.1 F) in 1979, marked on the chart; the median year is -29.4 C (-20.9 F).
Coldest night (TNn) at Trout Lake 1SW by year
Year
Coldest night (TNn)
1948
n/a
1949
n/a
1950
n/a
1951
n/a
1978
-26.1 C (-15.0 F)
1979
-41.7 C (-43.1 F)
1980
-37.2 C (-35.0 F)
1981
-38.3 C (-36.9 F)
1982
-32.2 C (-26.0 F)
1983
-34.4 C (-29.9 F)
1984
-36.1 C (-33.0 F)
1985
-37.2 C (-35.0 F)
1988
-26.1 C (-15.0 F)
1989
-32.2 C (-26.0 F)
1990
-30.6 C (-23.1 F)
1991
-30.0 C (-22.0 F)
1992
-29.4 C (-20.9 F)
1993
-31.1 C (-24.0 F)
1994
-38.9 C (-38.0 F)
1995
-26.7 C (-16.1 F)
1996
-33.3 C (-27.9 F)
1997
-34.4 C (-29.9 F)
1998
-25.6 C (-14.1 F)
1999
-31.7 C (-25.1 F)
2000
-28.9 C (-20.0 F)
2001
-26.7 C (-16.1 F)
2002
-23.9 C (-11.0 F)
2003
-33.3 C (-27.9 F)
2004
-29.4 C (-20.9 F)
2005
-28.9 C (-20.0 F)
2006
-21.7 C (-7.1 F)
2007
-29.4 C (-20.9 F)
2008
-25.6 C (-14.1 F)
2009
-28.9 C (-20.0 F)
2010
-23.3 C (-9.9 F)
2011
-30.6 C (-23.1 F)
2012
-26.1 C (-15.0 F)
2013
-28.3 C (-18.9 F)
2014
-33.3 C (-27.9 F)
2016
-22.2 C (-8.0 F)
2017
-24.4 C (-11.9 F)
Wettest day (Rx1day)
The wettest day of the year at Trout Lake 1SW, 1948 to 2017. The record is 110.0 mm (4.3 in) in 2011, marked on the chart; the median year is 42.9 mm (1.7 in).
Wettest day (Rx1day) at Trout Lake 1SW by year
Year
Wettest day (Rx1day)
1948
32.3 mm (1.3 in)
1949
42.9 mm (1.7 in)
1950
32.3 mm (1.3 in)
1951
44.7 mm (1.8 in)
1978
49.8 mm (2.0 in)
1979
44.5 mm (1.8 in)
1980
33.0 mm (1.3 in)
1981
39.4 mm (1.6 in)
1982
97.8 mm (3.9 in)
1983
6.4 mm (0.25 in)
1984
40.4 mm (1.6 in)
1985
0.0 mm (0.00 in)
1988
48.0 mm (1.9 in)
1989
62.2 mm (2.4 in)
1990
39.4 mm (1.6 in)
1991
46.5 mm (1.8 in)
1992
33.0 mm (1.3 in)
1993
39.9 mm (1.6 in)
1994
45.7 mm (1.8 in)
1995
65.0 mm (2.6 in)
1996
101.6 mm (4.0 in)
1997
49.5 mm (1.9 in)
1998
55.4 mm (2.2 in)
1999
61.0 mm (2.4 in)
2000
35.6 mm (1.4 in)
2001
52.1 mm (2.1 in)
2002
77.7 mm (3.1 in)
2003
34.0 mm (1.3 in)
2004
38.1 mm (1.5 in)
2005
30.0 mm (1.2 in)
2006
42.4 mm (1.7 in)
2007
31.0 mm (1.2 in)
2008
61.0 mm (2.4 in)
2009
38.4 mm (1.5 in)
2010
68.6 mm (2.7 in)
2011
110.0 mm (4.3 in)
2012
74.9 mm (2.9 in)
2013
42.9 mm (1.7 in)
2014
18.3 mm (0.7 in)
2016
33.8 mm (1.3 in)
2017
80.8 mm (3.2 in)
Wettest five days (Rx5day)
The wettest five days of the year at Trout Lake 1SW, 1948 to 2017. The record is 128.3 mm (5.1 in) in 1996, marked on the chart; the median year is 65.4 mm (2.6 in).
Wettest five days (Rx5day) at Trout Lake 1SW by year
Year
Wettest five days (Rx5day)
1948
51.1 mm (2.0 in)
1949
72.9 mm (2.9 in)
1950
50.0 mm (2.0 in)
1951
66.4 mm (2.6 in)
1978
77.5 mm (3.1 in)
1979
63.6 mm (2.5 in)
1980
50.9 mm (2.0 in)
1981
37.1 mm (1.5 in)
1982
97.8 mm (3.9 in)
1983
n/a
1984
56.9 mm (2.2 in)
1985
0.0 mm (0.00 in)
1988
80.1 mm (3.2 in)
1989
68.8 mm (2.7 in)
1990
62.5 mm (2.5 in)
1991
74.4 mm (2.9 in)
1992
40.9 mm (1.6 in)
1993
62.8 mm (2.5 in)
1994
56.7 mm (2.2 in)
1995
93.0 mm (3.7 in)
1996
128.3 mm (5.1 in)
1997
53.1 mm (2.1 in)
1998
64.8 mm (2.6 in)
1999
66.1 mm (2.6 in)
2000
53.3 mm (2.1 in)
2001
84.6 mm (3.3 in)
2002
91.7 mm (3.6 in)
2003
50.6 mm (2.0 in)
2004
63.5 mm (2.5 in)
2005
51.4 mm (2.0 in)
2006
74.4 mm (2.9 in)
2007
51.8 mm (2.0 in)
2008
86.2 mm (3.4 in)
2009
71.5 mm (2.8 in)
2010
107.0 mm (4.2 in)
2011
122.5 mm (4.8 in)
2012
101.1 mm (4.0 in)
2013
79.6 mm (3.1 in)
2014
52.6 mm (2.1 in)
2016
35.6 mm (1.4 in)
2017
88.4 mm (3.5 in)
Longest dry spell (CDD)
The longest dry spell of the year at Trout Lake 1SW, 1948 to 2017. The record is 30 days in 1980, marked on the chart; the median year is 15 days.
Longest dry spell (CDD) at Trout Lake 1SW by year
Year
Longest dry spell (CDD)
1948
21 days
1949
23 days
1950
13 days
1951
14 days
1978
24 days
1979
23 days
1980
30 days
1981
24 days
1982
18 days
1983
2 days
1984
20 days
1985
15 days
1988
13 days
1989
20 days
1990
14 days
1991
14 days
1992
27 days
1993
14 days
1994
21 days
1995
16 days
1996
19 days
1997
23 days
1998
21 days
1999
29 days
2000
18 days
2001
15 days
2002
16 days
2003
14 days
2004
15 days
2005
13 days
2006
12 days
2007
13 days
2008
15 days
2009
21 days
2010
21 days
2011
13 days
2012
14 days
2013
13 days
2014
13 days
2016
4 days
2017
14 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
29 years with a frost
Across 29 years with a frost, the median last spring frost at Trout Lake 1SW falls on 2 June and the median first autumn frost on 21 September, which leaves a median of 110 days between them.
Fitted over all years, the growing season changes by +23.8 days per decade at this station.
Frost dates and growing season at Trout Lake 1SW
Measure
Median, all years
Earliest period
Recent period (1979 to 2013)
Recent against earliest
Fitted trend
Last spring frost
2 June
n/a
2 June
n/a
-8.1 days per decade
First autumn frost
21 September
n/a
21 September
n/a
+15.7 days per decade
Growing days
110 days
n/a
110 days
n/a
+23.8 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.
Download the Data
Data for Trout Lake 1SW standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Trout Lake 1SW 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.