Record envelope, standing records and threshold days for Big Bay 1NW (USC00200770), Michigan, United States, with 82 years of record.
Key Facts for Big Bay 1NW
Big Bay 1NW (USC00200770) is a weather station in Michigan, United States at 46.83 latitude and -87.75 longitude, 233 m (765 ft) above sea level.
The station reports from 1945 to 2026, 82 years of record.
1,464 records set at Big Bay 1NW still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Big Bay 1NW tied a daily record high minimum temperature of 17.8 C (64.0 F) on 7 August 2026.
About the Station
Location: Michigan, United States, 46.83 latitude, -87.75 longitude.
Elevation: 233 m (765 ft).
Period of record: 1945 to 2026, 82 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
8 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 Big Bay 1NW. The lines show the 2026 daily maximum and minimum. 8 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Big Bay 1NW, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
11.7 C (53.1 F)
-28.9 C (-20.0 F)
4.4 C (39.9 F)
-25.0 C (-13.0 F)
Feb
15.6 C (60.1 F)
-35.6 C (-32.1 F)
11.7 C (53.1 F)
-17.2 C (1.0 F)
Mar
28.3 C (82.9 F)
-27.8 C (-18.0 F)
12.2 C (54.0 F)
-19.4 C (-2.9 F)
Apr
33.3 C (91.9 F)
-16.1 C (3.0 F)
23.9 C (75.0 F)
-10.0 C (14.0 F)
May
35.0 C (95.0 F)
-7.8 C (18.0 F)
28.9 C (84.0 F)
-3.3 C (26.1 F)
Jun
37.2 C (99.0 F)
-2.2 C (28.0 F)
29.4 C (84.9 F)
2.8 C (37.0 F)
Jul
39.4 C (102.9 F)
0.6 C (33.1 F)
36.1 C (97.0 F)
7.8 C (46.0 F)
Aug
38.9 C (102.0 F)
1.1 C (34.0 F)
28.9 C (84.0 F)
6.7 C (44.1 F)
Sep
34.4 C (93.9 F)
-4.4 C (24.1 F)
23.9 C (75.0 F)
3.3 C (37.9 F)
Oct
31.7 C (89.1 F)
-9.4 C (15.1 F)
n/a
n/a
Nov
26.1 C (79.0 F)
-18.9 C (-2.0 F)
n/a
n/a
Dec
17.2 C (63.0 F)
-26.1 C (-15.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Big Bay 1NW still stand. 1991 holds the most, with 59.
Standing records at Big Bay 1NW by the year they were set
Year set
Standing records
1965
11
1966
24
1967
32
1968
33
1969
21
1970
28
1971
24
1972
38
1973
22
1974
18
1975
33
1976
46
1977
31
1978
16
1979
38
1980
19
1981
34
1982
32
1983
33
1984
29
1985
13
1986
37
1987
31
1988
31
1989
40
1990
33
1991
59
1992
21
1993
6
1994
16
1995
20
1996
20
1997
10
1998
14
1999
8
2008
18
2009
32
2010
22
2011
28
2012
36
2013
33
2014
47
2015
39
2016
19
2017
42
2018
27
2019
18
2020
33
2021
33
2022
19
2023
34
2024
27
2025
22
2026
14
All-Time Record Progression
1 new records
1 all-time records were set at Big Bay 1NW between 14 July 2026 and 14 July 2026. Each dot is a new record.
When Big Bay 1NW set new all-time records
Date
Kind
Detail
2026-07-14
Record high minimum temperature
Record high minimum temperature 26.1 C (79.0 F)
Wettest Day of Each Month
Sep: 104.1 mm (4.1 in)
The wettest day on record for each calendar month at Big Bay 1NW. The most was 104.1 mm (4.1 in) on 11 September 1978.
Record daily precipitation for each month at Big Bay 1NW
Month
Record daily precipitation (mm)
Date
Jan
29.2 mm (1.1 in)
24 January 1979
Feb
37.6 mm (1.5 in)
24 February 2019
Mar
50.5 mm (2.0 in)
4 March 1979
Apr
67.3 mm (2.6 in)
9 April 1980
May
64.3 mm (2.5 in)
29 May 1983
Jun
89.4 mm (3.5 in)
20 June 1972
Jul
77.2 mm (3.0 in)
11 July 1982
Aug
67.1 mm (2.6 in)
15 August 1997
Sep
104.1 mm (4.1 in)
11 September 1978
Oct
58.4 mm (2.3 in)
12 October 1986
Nov
43.2 mm (1.7 in)
26 November 2025
Dec
48.5 mm (1.9 in)
15 December 2015
Period of Record Coverage
1945 to 2026
Complete yearUnder 90 percent of days
55 years of record at Big Bay 1NW, 1945 to 2026. 18 years have data for under 90 percent of days and are left out of rankings: 1945, 1965, 1973, 1974, 1985, 1987, 1989, 1990 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 32 complete years at Big Bay 1NW, 1966 to 2025. Blue stripes are years cooler than the station's own mean of 5.7 C (42.2 F); red stripes are warmer. The coolest year was 2014, at 3.4 C (38.0 F), and the warmest was 2024, at 7.5 C (45.4 F). The strongest colour marks a difference of 2.4 C (4.3 F).
Annual mean temperature at Big Bay 1NW as warming stripes, 1966 to 2025
Year
Annual mean temperature
Difference from the station mean
1966
5.8 C
+0.16 C
1967
5.3 C
-0.40 C
1968
6.0 C
+0.31 C
1969
5.8 C
+0.13 C
1970
5.8 C
+0.10 C
1971
5.9 C
+0.24 C
1972
3.8 C
-1.85 C
1975
6.3 C
+0.67 C
1976
5.9 C
+0.27 C
1977
5.9 C
+0.26 C
1978
5.6 C
-0.08 C
1979
4.3 C
-1.37 C
1981
5.7 C
+0.06 C
1986
6.4 C
+0.74 C
1988
6.0 C
+0.36 C
1991
6.1 C
+0.42 C
2009
4.9 C
-0.82 C
2010
7.0 C
+1.36 C
2011
6.0 C
+0.32 C
2013
4.6 C
-1.12 C
2014
3.4 C
-2.31 C
2015
5.8 C
+0.16 C
2016
6.6 C
+0.95 C
2017
5.6 C
-0.05 C
2018
4.9 C
-0.80 C
2019
4.4 C
-1.26 C
2020
6.1 C
+0.39 C
2021
6.9 C
+1.20 C
2022
5.2 C
-0.49 C
2023
6.3 C
+0.66 C
2024
7.5 C
+1.79 C
2025
5.7 C
+0.03 C
The fitted trend in annual mean temperature here over 1966 to 2025 is 0.03 C (-0.12 to 0.18) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.05 F (-0.22 to 0.32) per decade. The slope is a straight line fitted to 32 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Big Bay 1NW
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.03 C (-0.12 to 0.18) per decade
0.05 F (-0.22 to 0.32) per decade
1966 to 2025
32
Not clearly different from zero
Mean daily maximum
-0.1 C (-0.3 to 0.1) per decade
-0.2 F (-0.5 to 0.1) per decade
1966 to 2025
32
Not clearly different from zero
Mean daily minimum
0.17 C (0.01 to 0.32) per decade
0.30 F (0.01 to 0.58) per decade
1966 to 2025
32
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
1945 to 2026
Yearly extremes at Big Bay 1NW: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
39.4 C (102.9 F)
1988
33.9 C (93.0 F)
55
Coldest night (TNn)
-35.6 C (-32.1 F)
1979
-24.4 C (-11.9 F)
55
Wettest day (Rx1day)
104.1 mm (4.1 in)
1978
45.2 mm (1.8 in)
55
Wettest five days (Rx5day)
141.0 mm (5.6 in)
1988
73.6 mm (2.9 in)
54
Longest dry spell (CDD)
29 days
1998
17 days
54
Hottest day (TXx)
The hottest day of the year at Big Bay 1NW, 1945 to 2026. The record is 39.4 C (102.9 F) in 1988, marked on the chart; the median year is 33.9 C (93.0 F).
Hottest day (TXx) at Big Bay 1NW by year
Year
Hottest day (TXx)
1945
0.0 C (32.0 F)
1965
28.3 C (82.9 F)
1966
35.0 C (95.0 F)
1967
32.2 C (90.0 F)
1968
31.7 C (89.1 F)
1969
33.3 C (91.9 F)
1970
32.2 C (90.0 F)
1971
32.8 C (91.0 F)
1972
29.4 C (84.9 F)
1973
34.4 C (93.9 F)
1974
25.6 C (78.1 F)
1975
35.0 C (95.0 F)
1976
38.9 C (102.0 F)
1977
35.6 C (96.1 F)
1978
35.0 C (95.0 F)
1979
31.7 C (89.1 F)
1980
33.3 C (91.9 F)
1981
34.4 C (93.9 F)
1982
32.8 C (91.0 F)
1983
36.1 C (97.0 F)
1984
32.2 C (90.0 F)
1985
30.0 C (86.0 F)
1986
36.1 C (97.0 F)
1987
34.4 C (93.9 F)
1988
39.4 C (102.9 F)
1989
33.9 C (93.0 F)
1990
35.6 C (96.1 F)
1991
36.1 C (97.0 F)
1992
32.8 C (91.0 F)
1993
8.9 C (48.0 F)
1994
28.9 C (84.0 F)
1995
36.1 C (97.0 F)
1996
34.4 C (93.9 F)
1997
33.3 C (91.9 F)
1998
33.9 C (93.0 F)
1999
34.4 C (93.9 F)
2008
34.4 C (93.9 F)
2009
34.4 C (93.9 F)
2010
35.0 C (95.0 F)
2011
35.6 C (96.1 F)
2012
34.4 C (93.9 F)
2013
33.9 C (93.0 F)
2014
32.2 C (90.0 F)
2015
33.3 C (91.9 F)
2016
32.2 C (90.0 F)
2017
33.3 C (91.9 F)
2018
32.8 C (91.0 F)
2019
31.7 C (89.1 F)
2020
33.9 C (93.0 F)
2021
35.0 C (95.0 F)
2022
37.2 C (99.0 F)
2023
34.4 C (93.9 F)
2024
31.7 C (89.1 F)
2025
34.4 C (93.9 F)
2026
36.1 C (97.0 F)
Coldest night (TNn)
The coldest night of the year at Big Bay 1NW, 1945 to 2026. The record is -35.6 C (-32.1 F) in 1979, marked on the chart; the median year is -24.4 C (-11.9 F).
Coldest night (TNn) at Big Bay 1NW by year
Year
Coldest night (TNn)
1945
-5.0 C (23.0 F)
1965
-17.8 C (0.0 F)
1966
-26.7 C (-16.1 F)
1967
-28.3 C (-18.9 F)
1968
-26.7 C (-16.1 F)
1969
-23.3 C (-9.9 F)
1970
-29.4 C (-20.9 F)
1971
-26.1 C (-15.0 F)
1972
-28.3 C (-18.9 F)
1973
-27.8 C (-18.0 F)
1974
-27.2 C (-17.0 F)
1975
-22.8 C (-9.0 F)
1976
-22.8 C (-9.0 F)
1977
-27.8 C (-18.0 F)
1978
-22.2 C (-8.0 F)
1979
-35.6 C (-32.1 F)
1980
-23.3 C (-9.9 F)
1981
-31.7 C (-25.1 F)
1982
-28.9 C (-20.0 F)
1983
-26.1 C (-15.0 F)
1984
-27.2 C (-17.0 F)
1985
-30.6 C (-23.1 F)
1986
-22.8 C (-9.0 F)
1987
-21.7 C (-7.1 F)
1988
-26.1 C (-15.0 F)
1989
-23.9 C (-11.0 F)
1990
-24.4 C (-11.9 F)
1991
-23.9 C (-11.0 F)
1992
-22.2 C (-8.0 F)
1993
-22.8 C (-9.0 F)
1994
-30.0 C (-22.0 F)
1995
-24.4 C (-11.9 F)
1996
-30.0 C (-22.0 F)
1997
-26.1 C (-15.0 F)
1998
-20.6 C (-5.1 F)
1999
-26.1 C (-15.0 F)
2008
-21.1 C (-6.0 F)
2009
-23.3 C (-9.9 F)
2010
-17.2 C (1.0 F)
2011
-21.1 C (-6.0 F)
2012
-19.4 C (-2.9 F)
2013
-22.2 C (-8.0 F)
2014
-30.6 C (-23.1 F)
2015
-29.4 C (-20.9 F)
2016
-22.2 C (-8.0 F)
2017
-24.4 C (-11.9 F)
2018
-22.8 C (-9.0 F)
2019
-26.1 C (-15.0 F)
2020
-21.7 C (-7.1 F)
2021
-25.6 C (-14.1 F)
2022
-22.8 C (-9.0 F)
2023
-21.1 C (-6.0 F)
2024
-20.6 C (-5.1 F)
2025
-25.0 C (-13.0 F)
2026
-25.0 C (-13.0 F)
Wettest day (Rx1day)
The wettest day of the year at Big Bay 1NW, 1945 to 2026. The record is 104.1 mm (4.1 in) in 1978, marked on the chart; the median year is 45.2 mm (1.8 in).
Wettest day (Rx1day) at Big Bay 1NW by year
Year
Wettest day (Rx1day)
1945
11.4 mm (0.4 in)
1965
24.1 mm (0.9 in)
1966
32.3 mm (1.3 in)
1967
50.8 mm (2.0 in)
1968
35.6 mm (1.4 in)
1969
50.8 mm (2.0 in)
1970
30.5 mm (1.2 in)
1971
73.7 mm (2.9 in)
1972
89.4 mm (3.5 in)
1973
45.2 mm (1.8 in)
1974
26.7 mm (1.1 in)
1975
33.3 mm (1.3 in)
1976
49.3 mm (1.9 in)
1977
50.5 mm (2.0 in)
1978
104.1 mm (4.1 in)
1979
50.5 mm (2.0 in)
1980
67.3 mm (2.6 in)
1981
46.7 mm (1.8 in)
1982
77.2 mm (3.0 in)
1983
67.1 mm (2.6 in)
1984
43.9 mm (1.7 in)
1985
32.0 mm (1.3 in)
1986
58.4 mm (2.3 in)
1987
39.1 mm (1.5 in)
1988
57.7 mm (2.3 in)
1989
54.4 mm (2.1 in)
1990
50.8 mm (2.0 in)
1991
35.6 mm (1.4 in)
1992
34.3 mm (1.4 in)
1993
9.4 mm (0.37 in)
1994
24.6 mm (1.0 in)
1995
40.1 mm (1.6 in)
1996
37.6 mm (1.5 in)
1997
67.1 mm (2.6 in)
1998
33.5 mm (1.3 in)
1999
50.8 mm (2.0 in)
2008
25.1 mm (1.0 in)
2009
51.3 mm (2.0 in)
2010
70.6 mm (2.8 in)
2011
51.1 mm (2.0 in)
2012
42.4 mm (1.7 in)
2013
64.5 mm (2.5 in)
2014
84.8 mm (3.3 in)
2015
48.5 mm (1.9 in)
2016
57.4 mm (2.3 in)
2017
56.4 mm (2.2 in)
2018
50.5 mm (2.0 in)
2019
37.6 mm (1.5 in)
2020
36.8 mm (1.4 in)
2021
38.1 mm (1.5 in)
2022
41.9 mm (1.6 in)
2023
39.9 mm (1.6 in)
2024
37.6 mm (1.5 in)
2025
43.2 mm (1.7 in)
2026
29.0 mm (1.1 in)
Wettest five days (Rx5day)
The wettest five days of the year at Big Bay 1NW, 1945 to 2026. The record is 141.0 mm (5.6 in) in 1988, marked on the chart; the median year is 73.6 mm (2.9 in).
Wettest five days (Rx5day) at Big Bay 1NW by year
Year
Wettest five days (Rx5day)
1945
n/a
1965
47.3 mm (1.9 in)
1966
49.6 mm (2.0 in)
1967
98.6 mm (3.9 in)
1968
88.9 mm (3.5 in)
1969
52.8 mm (2.1 in)
1970
50.8 mm (2.0 in)
1971
85.2 mm (3.4 in)
1972
111.0 mm (4.4 in)
1973
66.3 mm (2.6 in)
1974
29.3 mm (1.2 in)
1975
69.3 mm (2.7 in)
1976
53.4 mm (2.1 in)
1977
67.8 mm (2.7 in)
1978
116.3 mm (4.6 in)
1979
80.7 mm (3.2 in)
1980
107.8 mm (4.2 in)
1981
58.4 mm (2.3 in)
1982
113.0 mm (4.4 in)
1983
101.8 mm (4.0 in)
1984
75.6 mm (3.0 in)
1985
75.3 mm (3.0 in)
1986
83.1 mm (3.3 in)
1987
62.5 mm (2.5 in)
1988
141.0 mm (5.6 in)
1989
71.2 mm (2.8 in)
1990
77.7 mm (3.1 in)
1991
74.0 mm (2.9 in)
1992
40.4 mm (1.6 in)
1993
9.9 mm (0.39 in)
1994
49.3 mm (1.9 in)
1995
44.0 mm (1.7 in)
1996
69.0 mm (2.7 in)
1997
81.3 mm (3.2 in)
1998
33.5 mm (1.3 in)
1999
50.8 mm (2.0 in)
2008
35.6 mm (1.4 in)
2009
74.4 mm (2.9 in)
2010
79.0 mm (3.1 in)
2011
97.6 mm (3.8 in)
2012
65.3 mm (2.6 in)
2013
90.2 mm (3.6 in)
2014
91.1 mm (3.6 in)
2015
73.4 mm (2.9 in)
2016
91.5 mm (3.6 in)
2017
98.0 mm (3.9 in)
2018
108.9 mm (4.3 in)
2019
69.8 mm (2.7 in)
2020
64.0 mm (2.5 in)
2021
54.4 mm (2.1 in)
2022
72.1 mm (2.8 in)
2023
109.6 mm (4.3 in)
2024
61.0 mm (2.4 in)
2025
73.8 mm (2.9 in)
2026
83.9 mm (3.3 in)
Longest dry spell (CDD)
The longest dry spell of the year at Big Bay 1NW, 1945 to 2026. The record is 29 days in 1998, marked on the chart; the median year is 17 days.
Longest dry spell (CDD) at Big Bay 1NW by year
Year
Longest dry spell (CDD)
1945
n/a
1965
15 days
1966
17 days
1967
19 days
1968
17 days
1969
21 days
1970
20 days
1971
18 days
1972
16 days
1973
16 days
1974
9 days
1975
19 days
1976
15 days
1977
11 days
1978
18 days
1979
16 days
1980
18 days
1981
19 days
1982
14 days
1983
26 days
1984
14 days
1985
14 days
1986
19 days
1987
23 days
1988
17 days
1989
22 days
1990
15 days
1991
17 days
1992
16 days
1993
9 days
1994
18 days
1995
18 days
1996
12 days
1997
19 days
1998
29 days
1999
17 days
2008
13 days
2009
21 days
2010
21 days
2011
13 days
2012
13 days
2013
13 days
2014
14 days
2015
13 days
2016
13 days
2017
14 days
2018
17 days
2019
12 days
2020
10 days
2021
17 days
2022
13 days
2023
20 days
2024
26 days
2025
12 days
2026
21 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
32 years with a frost
Across 32 years with a frost, the median last spring frost at Big Bay 1NW falls on 22 May and the median first autumn frost on 10 October, which leaves a median of 141 days between them.
Fitted over all years, the growing season changes by +1.7 days per decade at this station.
Frost dates and growing season at Big Bay 1NW
Measure
Median, all years
Earliest period
Recent period (1968 to 2025)
Recent against earliest
Fitted trend
Last spring frost
22 May
n/a
23 May
n/a
-0.6 days per decade
First autumn frost
10 October
n/a
10 October
n/a
+1.1 days per decade
Growing days
141 days
n/a
141 days
n/a
+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
35 years, 1966 to 2025
A day with at least 48.1 mm (1.9 in) of rain is expected about once in 2 years. A day with at least 111.6 mm (4.4 in) of rain is expected about once in 100 years.
Rainfall return levels at Big Bay 1NW: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
48.1 mm (1.9 in)
5 years
62.4 mm (2.5 in)
10 years
72.9 mm (2.9 in)
25 years
87.4 mm (3.4 in)
50 years
99.1 mm (3.9 in)
Longer than the 35 years of record
100 years
111.6 mm (4.4 in)
Longer than the 35 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, 35 years of values from 1966 to 2025.
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 1978; 84.8 mm (3.3 in) in 2014; 77.2 mm (3.0 in) in 1982.
Climate Twins
2010 to 2025 against 1961 to 1990
Over 2010 to 2025, Big Bay 1NW had a mean temperature of 5.7 C (42.3 F) and 918.4 mm (36.2 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Wiarton A (Canada, 565 km away), Summerside A (Canada, 1,820 km away) and Detour Village (United States, 309 km away).
Climate twins of Big Bay 1NW: stations whose 1961 to 1990 climate is closest to its 2010 to 2025 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 Big Bay 1NW standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Big Bay 1NW 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.