Record envelope, standing records and threshold days for St Ignace (USC00207271), Michigan, United States, with 56 years of record.
Key Facts for St Ignace
St Ignace (USC00207271) is a weather station in Michigan, United States at 45.88 latitude and -84.73 longitude, 202 m (663 ft) above sea level.
The station reports from 1891 to 1946, 56 years of record.
1,464 records set at St Ignace still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
St Ignace tied a daily record snowfall of 10.2 cm (4.0 in) on 28 December 1946.
About the Station
Location: Michigan, United States, 45.88 latitude, -84.73 longitude.
Elevation: 202 m (663 ft).
Period of record: 1891 to 1946, 56 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 St Ignace. 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 St Ignace, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
12.2 C (54.0 F)
-33.9 C (-29.0 F)
n/a
n/a
Feb
10.6 C (51.1 F)
-37.2 C (-35.0 F)
n/a
n/a
Mar
21.7 C (71.1 F)
-31.1 C (-24.0 F)
n/a
n/a
Apr
27.2 C (81.0 F)
-22.8 C (-9.0 F)
n/a
n/a
May
32.2 C (90.0 F)
-9.4 C (15.1 F)
n/a
n/a
Jun
37.2 C (99.0 F)
-2.8 C (27.0 F)
n/a
n/a
Jul
37.2 C (99.0 F)
1.1 C (34.0 F)
n/a
n/a
Aug
34.4 C (93.9 F)
1.1 C (34.0 F)
n/a
n/a
Sep
33.3 C (91.9 F)
-6.7 C (19.9 F)
n/a
n/a
Oct
27.8 C (82.0 F)
-11.1 C (12.0 F)
n/a
n/a
Nov
22.2 C (72.0 F)
-21.7 C (-7.1 F)
n/a
n/a
Dec
15.0 C (59.0 F)
-28.9 C (-20.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at St Ignace still stand. 1895 holds the most, with 62.
Standing records at St Ignace by the year they were set
Year set
Standing records
1891
6
1892
31
1893
40
1894
42
1895
62
1896
37
1897
23
1898
24
1899
44
1900
43
1901
27
1902
14
1903
30
1904
37
1905
13
1906
14
1907
31
1908
19
1909
18
1910
19
1911
25
1912
45
1913
23
1914
17
1915
27
1916
18
1917
6
1918
22
1919
24
1920
19
1921
26
1922
10
1923
42
1924
32
1925
27
1926
16
1927
13
1928
19
1929
20
1930
23
1931
39
1932
36
1933
51
1934
28
1935
13
1936
25
1937
18
1938
21
1939
16
1940
18
1941
25
1942
29
1943
30
1944
26
1945
28
1946
33
All-Time Record Progression
2 new records
2 all-time records were set at St Ignace between 30 January 1946 and 27 December 1946. Each dot is a new record.
When St Ignace set new all-time records
Date
Kind
Detail
1946-01-30
Record daily snowfall
Record daily snowfall 41.7 cm (16.4 in)
1946-12-27
Record daily snowfall
Record daily snowfall 51.3 cm (20.2 in)
Wettest Day of Each Month
Aug: 114.3 mm (4.5 in)
The wettest day on record for each calendar month at St Ignace. The most was 114.3 mm (4.5 in) on 7 August 1912.
Record daily precipitation for each month at St Ignace
Month
Record daily precipitation (mm)
Date
Jan
30.5 mm (1.2 in)
10 January 1924
Feb
49.5 mm (1.9 in)
4 February 1933
Mar
50.8 mm (2.0 in)
31 March 1912
Apr
50.8 mm (2.0 in)
29 April 1914
May
71.1 mm (2.8 in)
15 May 1923
Jun
76.2 mm (3.0 in)
27 June 1913
Jul
73.7 mm (2.9 in)
7 July 1898
Aug
114.3 mm (4.5 in)
7 August 1912
Sep
71.6 mm (2.8 in)
17 September 1931
Oct
101.6 mm (4.0 in)
22 October 1912
Nov
39.6 mm (1.6 in)
1 November 1941
Dec
61.5 mm (2.4 in)
12 December 1899
Period of Record Coverage
1891 to 1946
Complete yearUnder 90 percent of days
56 years of record at St Ignace, 1891 to 1946. 14 years have data for under 90 percent of days and are left out of rankings: 1891, 1902, 1903, 1905, 1906, 1907, 1908, 1909 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 34 complete years at St Ignace, 1892 to 1946. 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 1893, at 3.8 C (38.9 F), and the warmest was 1931, at 8.1 C (46.5 F). The strongest colour marks a difference of 2.4 C (4.3 F).
Annual mean temperature at St Ignace as warming stripes, 1892 to 1946
Year
Annual mean temperature
Difference from the station mean
1892
4.4 C
-1.28 C
1893
3.8 C
-1.87 C
1894
5.7 C
+0.04 C
1895
4.4 C
-1.32 C
1896
5.3 C
-0.40 C
1897
5.0 C
-0.69 C
1898
6.1 C
+0.40 C
1899
4.8 C
-0.93 C
1900
5.8 C
+0.07 C
1911
6.3 C
+0.64 C
1922
6.0 C
+0.28 C
1923
4.9 C
-0.78 C
1925
5.9 C
+0.21 C
1926
4.9 C
-0.75 C
1927
5.9 C
+0.17 C
1928
5.7 C
+0.05 C
1929
5.0 C
-0.73 C
1930
6.2 C
+0.51 C
1931
8.1 C
+2.38 C
1932
7.4 C
+1.72 C
1933
6.3 C
+0.59 C
1934
6.2 C
+0.49 C
1935
6.1 C
+0.44 C
1936
5.4 C
-0.32 C
1937
6.4 C
+0.72 C
1938
6.7 C
+1.00 C
1939
6.2 C
+0.56 C
1940
6.2 C
+0.55 C
1941
6.7 C
+1.02 C
1942
5.3 C
-0.34 C
1943
4.2 C
-1.48 C
1944
5.7 C
+0.05 C
1945
4.8 C
-0.89 C
1946
5.6 C
-0.07 C
The annual mean temperature here has risen by 0.19 C (0.03 to 0.36) per decade over 1892 to 1946. In Fahrenheit: 0.3 F (0.1 to 0.6) per decade. The slope is a straight line fitted to 34 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at St Ignace
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.19 C (0.03 to 0.36) per decade
0.3 F (0.1 to 0.6) per decade
1892 to 1946
34
Rise
Mean daily maximum
0.18 C (-0.01 to 0.37) per decade
0.33 F (-0.02 to 0.67) per decade
1892 to 1946
34
Not clearly different from zero
Mean daily minimum
0.21 C (0.00 to 0.41) per decade
0.37 F (0.00 to 0.74) per decade
1892 to 1946
34
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
1891 to 1946
Yearly extremes at St Ignace: 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)
1918
31.7 C (89.1 F)
56
Coldest night (TNn)
-37.2 C (-35.0 F)
1895
-26.7 C (-16.1 F)
56
Wettest day (Rx1day)
114.3 mm (4.5 in)
1912
43.1 mm (1.7 in)
56
Wettest five days (Rx5day)
216.7 mm (8.5 in)
1912
62.4 mm (2.5 in)
56
Longest dry spell (CDD)
123 days
1906
21 days
56
Hottest day (TXx)
The hottest day of the year at St Ignace, 1891 to 1946. The record is 37.2 C (99.0 F) in 1918, marked on the chart; the median year is 31.7 C (89.1 F).
Hottest day (TXx) at St Ignace by year
Year
Hottest day (TXx)
1891
27.8 C (82.0 F)
1892
30.6 C (87.1 F)
1893
33.3 C (91.9 F)
1894
33.9 C (93.0 F)
1895
30.6 C (87.1 F)
1896
29.4 C (84.9 F)
1897
32.8 C (91.0 F)
1898
35.6 C (96.1 F)
1899
32.8 C (91.0 F)
1900
32.2 C (90.0 F)
1901
33.3 C (91.9 F)
1902
30.6 C (87.1 F)
1903
29.4 C (84.9 F)
1904
30.6 C (87.1 F)
1905
26.7 C (80.1 F)
1906
34.4 C (93.9 F)
1907
29.4 C (84.9 F)
1908
32.8 C (91.0 F)
1909
31.7 C (89.1 F)
1910
30.0 C (86.0 F)
1911
33.3 C (91.9 F)
1912
31.7 C (89.1 F)
1913
31.1 C (88.0 F)
1914
34.4 C (93.9 F)
1915
29.4 C (84.9 F)
1916
34.4 C (93.9 F)
1917
28.9 C (84.0 F)
1918
37.2 C (99.0 F)
1919
33.9 C (93.0 F)
1920
29.4 C (84.9 F)
1921
36.1 C (97.0 F)
1922
30.6 C (87.1 F)
1923
30.6 C (87.1 F)
1924
30.6 C (87.1 F)
1925
31.7 C (89.1 F)
1926
31.7 C (89.1 F)
1927
30.0 C (86.0 F)
1928
31.7 C (89.1 F)
1929
33.3 C (91.9 F)
1930
31.7 C (89.1 F)
1931
35.6 C (96.1 F)
1932
32.8 C (91.0 F)
1933
34.4 C (93.9 F)
1934
31.1 C (88.0 F)
1935
31.7 C (89.1 F)
1936
36.1 C (97.0 F)
1937
31.7 C (89.1 F)
1938
33.3 C (91.9 F)
1939
32.2 C (90.0 F)
1940
31.7 C (89.1 F)
1941
31.7 C (89.1 F)
1942
30.6 C (87.1 F)
1943
32.2 C (90.0 F)
1944
33.9 C (93.0 F)
1945
30.0 C (86.0 F)
1946
30.0 C (86.0 F)
Coldest night (TNn)
The coldest night of the year at St Ignace, 1891 to 1946. The record is -37.2 C (-35.0 F) in 1895, marked on the chart; the median year is -26.7 C (-16.1 F).
Coldest night (TNn) at St Ignace by year
Year
Coldest night (TNn)
1891
-15.0 C (5.0 F)
1892
-26.7 C (-16.1 F)
1893
-30.0 C (-22.0 F)
1894
-28.9 C (-20.0 F)
1895
-37.2 C (-35.0 F)
1896
-30.0 C (-22.0 F)
1897
-26.7 C (-16.1 F)
1898
-26.7 C (-16.1 F)
1899
-34.4 C (-29.9 F)
1900
-29.4 C (-20.9 F)
1901
-26.1 C (-15.0 F)
1902
-23.3 C (-9.9 F)
1903
-27.8 C (-18.0 F)
1904
-36.7 C (-34.1 F)
1905
-28.3 C (-18.9 F)
1906
-19.4 C (-2.9 F)
1907
-15.6 C (3.9 F)
1908
-28.9 C (-20.0 F)
1909
-21.7 C (-7.1 F)
1910
-22.8 C (-9.0 F)
1911
-20.6 C (-5.1 F)
1912
-31.7 C (-25.1 F)
1913
-26.7 C (-16.1 F)
1914
-17.2 C (1.0 F)
1915
-25.0 C (-13.0 F)
1916
-24.4 C (-11.9 F)
1917
-30.0 C (-22.0 F)
1918
-30.6 C (-23.1 F)
1919
-17.8 C (0.0 F)
1920
-27.2 C (-17.0 F)
1921
-25.0 C (-13.0 F)
1922
-27.8 C (-18.0 F)
1923
-25.6 C (-14.1 F)
1924
-27.2 C (-17.0 F)
1925
-28.3 C (-18.9 F)
1926
-26.7 C (-16.1 F)
1927
-33.9 C (-29.0 F)
1928
-30.6 C (-23.1 F)
1929
-26.1 C (-15.0 F)
1930
-28.9 C (-20.0 F)
1931
-21.7 C (-7.1 F)
1932
-18.9 C (-2.0 F)
1933
-28.9 C (-20.0 F)
1934
-33.3 C (-27.9 F)
1935
-27.2 C (-17.0 F)
1936
-27.2 C (-17.0 F)
1937
-19.4 C (-2.9 F)
1938
-24.4 C (-11.9 F)
1939
-26.1 C (-15.0 F)
1940
-21.1 C (-6.0 F)
1941
-21.1 C (-6.0 F)
1942
-24.4 C (-11.9 F)
1943
-32.8 C (-27.0 F)
1944
-25.6 C (-14.1 F)
1945
-23.9 C (-11.0 F)
1946
-22.2 C (-8.0 F)
Wettest day (Rx1day)
The wettest day of the year at St Ignace, 1891 to 1946. The record is 114.3 mm (4.5 in) in 1912, marked on the chart; the median year is 43.1 mm (1.7 in).
Wettest day (Rx1day) at St Ignace by year
Year
Wettest day (Rx1day)
1891
36.8 mm (1.4 in)
1892
53.8 mm (2.1 in)
1893
35.6 mm (1.4 in)
1894
36.3 mm (1.4 in)
1895
33.0 mm (1.3 in)
1896
61.5 mm (2.4 in)
1897
41.7 mm (1.6 in)
1898
73.7 mm (2.9 in)
1899
61.5 mm (2.4 in)
1900
76.2 mm (3.0 in)
1901
57.9 mm (2.3 in)
1902
33.0 mm (1.3 in)
1903
57.2 mm (2.3 in)
1904
27.9 mm (1.1 in)
1905
15.2 mm (0.6 in)
1906
7.6 mm (0.30 in)
1907
31.8 mm (1.3 in)
1908
25.4 mm (1.0 in)
1909
35.6 mm (1.4 in)
1910
50.8 mm (2.0 in)
1911
50.8 mm (2.0 in)
1912
114.3 mm (4.5 in)
1913
76.2 mm (3.0 in)
1914
51.3 mm (2.0 in)
1915
8.9 mm (0.35 in)
1916
38.1 mm (1.5 in)
1917
20.3 mm (0.8 in)
1918
25.7 mm (1.0 in)
1919
48.3 mm (1.9 in)
1920
5.1 mm (0.20 in)
1921
7.6 mm (0.30 in)
1922
43.2 mm (1.7 in)
1923
71.1 mm (2.8 in)
1924
30.5 mm (1.2 in)
1925
29.7 mm (1.2 in)
1926
46.2 mm (1.8 in)
1927
34.3 mm (1.4 in)
1928
48.5 mm (1.9 in)
1929
42.7 mm (1.7 in)
1930
58.4 mm (2.3 in)
1931
71.6 mm (2.8 in)
1932
27.9 mm (1.1 in)
1933
49.5 mm (1.9 in)
1934
31.8 mm (1.3 in)
1935
49.3 mm (1.9 in)
1936
50.8 mm (2.0 in)
1937
50.8 mm (2.0 in)
1938
44.2 mm (1.7 in)
1939
51.3 mm (2.0 in)
1940
30.7 mm (1.2 in)
1941
47.8 mm (1.9 in)
1942
25.9 mm (1.0 in)
1943
53.3 mm (2.1 in)
1944
25.9 mm (1.0 in)
1945
42.9 mm (1.7 in)
1946
56.6 mm (2.2 in)
Wettest five days (Rx5day)
The wettest five days of the year at St Ignace, 1891 to 1946. The record is 216.7 mm (8.5 in) in 1912, marked on the chart; the median year is 62.4 mm (2.5 in).
Wettest five days (Rx5day) at St Ignace by year
Year
Wettest five days (Rx5day)
1891
71.8 mm (2.8 in)
1892
70.4 mm (2.8 in)
1893
49.3 mm (1.9 in)
1894
68.8 mm (2.7 in)
1895
56.6 mm (2.2 in)
1896
95.8 mm (3.8 in)
1897
79.3 mm (3.1 in)
1898
115.6 mm (4.6 in)
1899
64.0 mm (2.5 in)
1900
104.7 mm (4.1 in)
1901
105.9 mm (4.2 in)
1902
72.4 mm (2.9 in)
1903
81.6 mm (3.2 in)
1904
54.1 mm (2.1 in)
1905
27.9 mm (1.1 in)
1906
15.2 mm (0.6 in)
1907
43.2 mm (1.7 in)
1908
64.0 mm (2.5 in)
1909
49.5 mm (1.9 in)
1910
69.3 mm (2.7 in)
1911
74.9 mm (2.9 in)
1912
216.7 mm (8.5 in)
1913
165.1 mm (6.5 in)
1914
51.3 mm (2.0 in)
1915
16.5 mm (0.6 in)
1916
38.2 mm (1.5 in)
1917
45.7 mm (1.8 in)
1918
25.7 mm (1.0 in)
1919
56.6 mm (2.2 in)
1920
9.7 mm (0.38 in)
1921
11.4 mm (0.4 in)
1922
61.0 mm (2.4 in)
1923
71.1 mm (2.8 in)
1924
53.4 mm (2.1 in)
1925
38.9 mm (1.5 in)
1926
66.5 mm (2.6 in)
1927
48.7 mm (1.9 in)
1928
82.0 mm (3.2 in)
1929
55.4 mm (2.2 in)
1930
56.9 mm (2.2 in)
1931
118.4 mm (4.7 in)
1932
63.8 mm (2.5 in)
1933
59.9 mm (2.4 in)
1934
52.1 mm (2.1 in)
1935
80.8 mm (3.2 in)
1936
81.0 mm (3.2 in)
1937
76.2 mm (3.0 in)
1938
65.8 mm (2.6 in)
1939
106.9 mm (4.2 in)
1940
46.4 mm (1.8 in)
1941
26.5 mm (1.0 in)
1942
54.6 mm (2.1 in)
1943
134.6 mm (5.3 in)
1944
42.1 mm (1.7 in)
1945
46.4 mm (1.8 in)
1946
72.3 mm (2.8 in)
Longest dry spell (CDD)
The longest dry spell of the year at St Ignace, 1891 to 1946. The record is 123 days in 1906, marked on the chart; the median year is 21 days.
Longest dry spell (CDD) at St Ignace by year
Year
Longest dry spell (CDD)
1891
19 days
1892
15 days
1893
14 days
1894
12 days
1895
12 days
1896
25 days
1897
29 days
1898
24 days
1899
25 days
1900
27 days
1901
29 days
1902
42 days
1903
79 days
1904
36 days
1905
69 days
1906
123 days
1907
22 days
1908
17 days
1909
44 days
1910
29 days
1911
16 days
1912
38 days
1913
20 days
1914
19 days
1915
31 days
1916
25 days
1917
20 days
1918
15 days
1919
26 days
1920
13 days
1921
19 days
1922
23 days
1923
19 days
1924
29 days
1925
31 days
1926
18 days
1927
18 days
1928
12 days
1929
23 days
1930
16 days
1931
21 days
1932
21 days
1933
19 days
1934
28 days
1935
27 days
1936
22 days
1937
38 days
1938
19 days
1939
20 days
1940
14 days
1941
7 days
1942
6 days
1943
26 days
1944
21 days
1945
14 days
1946
15 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
34 years with a frost
Across 34 years with a frost, the median last spring frost at St Ignace falls on 19 May and the median first autumn frost on 30 September, which leaves a median of 137 days between them.
Fitted over all years, the growing season changes by +1.3 days per decade at this station.
Frost dates and growing season at St Ignace
Measure
Median, all years
Earliest period
Recent period (1896 to 1946)
Recent against earliest
Fitted trend
Last spring frost
19 May
n/a
18 May
n/a
-0.2 days per decade
First autumn frost
30 September
n/a
30 September
n/a
+1.1 days per decade
Growing days
137 days
n/a
138 days
n/a
+1.3 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
33 years, 1892 to 1946
A day with at least 46.3 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 82.3 mm (3.2 in) of rain is expected about once in 100 years.
Rainfall return levels at St Ignace: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
46.3 mm (1.8 in)
5 years
58.7 mm (2.3 in)
10 years
65.6 mm (2.6 in)
25 years
73.2 mm (2.9 in)
50 years
78.0 mm (3.1 in)
Longer than the 33 years of record
100 years
82.3 mm (3.2 in)
Longer than the 33 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, 33 years of values from 1892 to 1946.
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: 76.2 mm (3.0 in) in 1900; 73.7 mm (2.9 in) in 1898; 71.6 mm (2.8 in) in 1931.
Download the Data
Data for St Ignace standing records by year: CSV or JSON. Field meanings are on the data page.
Data for St Ignace 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.