Record envelope, standing records and threshold days for Saint Charles (USC00207253), Michigan, United States, with 58 years of record.
Key Facts for Saint Charles
Saint Charles (USC00207253) is a weather station in Michigan, United States at 43.30 latitude and -84.17 longitude, 183 m (600 ft) above sea level.
The station reports from 1940 to 1997, 58 years of record.
1,464 records set at Saint Charles still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Saint Charles tied a daily record low minimum temperature of -5.0 C (23.0 F) on 19 April 1997.
About the Station
Location: Michigan, United States, 43.30 latitude, -84.17 longitude.
Elevation: 183 m (600 ft).
Period of record: 1940 to 1997, 58 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 Saint Charles. 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 Saint Charles, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
15.6 C (60.1 F)
-31.7 C (-25.1 F)
n/a
n/a
Feb
18.3 C (64.9 F)
-31.1 C (-24.0 F)
n/a
n/a
Mar
26.7 C (80.1 F)
-26.1 C (-15.0 F)
n/a
n/a
Apr
31.1 C (88.0 F)
-16.7 C (1.9 F)
n/a
n/a
May
33.9 C (93.0 F)
-8.9 C (16.0 F)
n/a
n/a
Jun
38.3 C (100.9 F)
0.0 C (32.0 F)
n/a
n/a
Jul
38.3 C (100.9 F)
3.3 C (37.9 F)
n/a
n/a
Aug
38.3 C (100.9 F)
-2.8 C (27.0 F)
n/a
n/a
Sep
38.3 C (100.9 F)
-6.1 C (21.0 F)
n/a
n/a
Oct
32.2 C (90.0 F)
-9.4 C (15.1 F)
n/a
n/a
Nov
25.0 C (77.0 F)
-17.2 C (1.0 F)
n/a
n/a
Dec
18.9 C (66.0 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 Saint Charles still stand. 1991 holds the most, with 54.
Standing records at Saint Charles by the year they were set
Year set
Standing records
1952
21
1953
44
1954
38
1955
39
1956
26
1957
26
1958
25
1959
37
1960
28
1961
23
1962
27
1963
49
1964
51
1965
44
1966
42
1967
38
1968
37
1969
23
1970
21
1971
28
1972
33
1973
30
1974
31
1975
29
1976
45
1977
51
1978
17
1979
46
1980
10
1981
23
1982
51
1983
40
1984
49
1988
24
1989
43
1990
40
1991
54
1992
36
1993
36
1994
30
1995
30
1996
40
1997
9
All-Time Record Progression
6 new records
6 all-time records were set at Saint Charles between 26 January 1978 and 18 January 1994. Each dot is a new record.
When Saint Charles set new all-time records
Date
Kind
Detail
1978-01-26
Record daily snowfall
Record daily snowfall 44.5 cm (17.5 in)
1979-01-17
Record snow depth
Record snow depth 58.4 cm (23.0 in)
1982-01-17
Record low maximum temperature
Record low maximum temperature -17.8 C (0.0 F)
1982-01-17
Record low minimum temperature
Record low minimum temperature -31.7 C (-25.1 F)
1988-07-16
Record daily precipitation
Record daily precipitation 121.4 mm (4.8 in)
1994-01-18
Record low maximum temperature
Record low maximum temperature -20.0 C (-4.0 F)
Wettest Day of Each Month
Jul: 121.4 mm (4.8 in)
The wettest day on record for each calendar month at Saint Charles. The most was 121.4 mm (4.8 in) on 16 July 1988.
Record daily precipitation for each month at Saint Charles
Month
Record daily precipitation (mm)
Date
Jan
44.5 mm (1.8 in)
26 January 1978
Feb
41.9 mm (1.6 in)
21 February 1976
Mar
57.2 mm (2.3 in)
2 March 1976
Apr
75.9 mm (3.0 in)
29 April 1991
May
73.4 mm (2.9 in)
21 May 1996
Jun
88.9 mm (3.5 in)
30 June 1976
Jul
121.4 mm (4.8 in)
16 July 1988
Aug
111.0 mm (4.4 in)
4 August 1956
Sep
84.6 mm (3.3 in)
1 September 1945
Oct
68.6 mm (2.7 in)
1 October 1981
Nov
56.1 mm (2.2 in)
11 November 1995
Dec
42.7 mm (1.7 in)
30 December 1971
Period of Record Coverage
1952 to 1997
Complete yearUnder 90 percent of days
43 years of record at Saint Charles, 1952 to 1997. 8 years have data for under 90 percent of days and are left out of rankings: 1952, 1981, 1982, 1983, 1984, 1988, 1990, 1997.
Cooler than the station meanWarmer than the station mean
One stripe for each of 37 complete years at Saint Charles, 1953 to 1996. Blue stripes are years cooler than the station's own mean of 8.7 C (47.6 F); red stripes are warmer. The coolest year was 1989, at 6.9 C (44.4 F), and the warmest was 1953, at 10.3 C (50.5 F). The strongest colour marks a difference of 1.8 C (3.2 F).
Annual mean temperature at Saint Charles as warming stripes, 1953 to 1996
Year
Annual mean temperature
Difference from the station mean
1953
10.3 C
+1.62 C
1954
9.4 C
+0.79 C
1955
9.7 C
+1.05 C
1956
8.6 C
-0.07 C
1957
9.0 C
+0.36 C
1958
8.3 C
-0.34 C
1959
9.1 C
+0.49 C
1960
8.6 C
-0.03 C
1961
9.2 C
+0.58 C
1962
8.5 C
-0.15 C
1963
8.5 C
-0.12 C
1964
9.8 C
+1.10 C
1965
8.9 C
+0.20 C
1966
8.7 C
+0.03 C
1967
8.4 C
-0.21 C
1968
9.2 C
+0.52 C
1969
8.7 C
+0.05 C
1970
8.9 C
+0.23 C
1971
9.3 C
+0.63 C
1972
7.9 C
-0.75 C
1973
10.0 C
+1.33 C
1974
8.9 C
+0.21 C
1975
9.6 C
+0.95 C
1976
8.6 C
-0.08 C
1977
9.5 C
+0.81 C
1978
8.5 C
-0.19 C
1979
8.7 C
+0.08 C
1980
8.7 C
+0.08 C
1982
7.7 C
-0.95 C
1983
8.9 C
+0.23 C
1989
6.9 C
-1.74 C
1991
8.8 C
+0.16 C
1992
7.3 C
-1.40 C
1993
7.1 C
-1.59 C
1994
7.4 C
-1.27 C
1995
7.7 C
-0.93 C
1996
7.0 C
-1.66 C
The annual mean temperature here has fallen by 0.4 C (0.3 to 0.6) per decade over 1953 to 1996. In Fahrenheit: 0.8 F (0.5 to 1.1) per decade. The slope is a straight line fitted to 37 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Saint Charles
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.4 C (-0.6 to -0.3) per decade
-0.8 F (-1.1 to -0.5) per decade
1953 to 1996
37
Fall
Mean daily maximum
-0.4 C (-0.5 to -0.2) per decade
-0.7 F (-1.0 to -0.4) per decade
1953 to 1996
37
Fall
Mean daily minimum
-0.5 C (-0.7 to -0.3) per decade
-0.9 F (-1.2 to -0.5) per decade
1953 to 1996
37
Fall
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 1997
Yearly extremes at Saint Charles: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
38.3 C (100.9 F)
1953
35.0 C (95.0 F)
43
Coldest night (TNn)
-31.7 C (-25.1 F)
1982
-23.3 C (-9.9 F)
43
Wettest day (Rx1day)
121.4 mm (4.8 in)
1988
52.1 mm (2.1 in)
55
Wettest five days (Rx5day)
165.8 mm (6.5 in)
1994
70.6 mm (2.8 in)
55
Longest dry spell (CDD)
36 days
1979
19 days
55
Hottest day (TXx)
The hottest day of the year at Saint Charles, 1940 to 1997. The record is 38.3 C (100.9 F) in 1953, marked on the chart; the median year is 35.0 C (95.0 F).
Hottest day (TXx) at Saint Charles by year
Year
Hottest day (TXx)
1940
n/a
1941
n/a
1942
n/a
1943
n/a
1944
n/a
1945
n/a
1946
n/a
1947
n/a
1948
n/a
1949
n/a
1950
n/a
1951
n/a
1952
37.2 C (99.0 F)
1953
38.3 C (100.9 F)
1954
35.0 C (95.0 F)
1955
38.3 C (100.9 F)
1956
35.0 C (95.0 F)
1957
34.4 C (93.9 F)
1958
33.9 C (93.0 F)
1959
35.0 C (95.0 F)
1960
35.6 C (96.1 F)
1961
35.0 C (95.0 F)
1962
35.0 C (95.0 F)
1963
36.7 C (98.1 F)
1964
36.7 C (98.1 F)
1965
36.7 C (98.1 F)
1966
37.8 C (100.0 F)
1967
36.7 C (98.1 F)
1968
35.0 C (95.0 F)
1969
34.4 C (93.9 F)
1970
35.0 C (95.0 F)
1971
38.3 C (100.9 F)
1972
35.0 C (95.0 F)
1973
36.1 C (97.0 F)
1974
35.0 C (95.0 F)
1975
37.2 C (99.0 F)
1976
35.0 C (95.0 F)
1977
38.3 C (100.9 F)
1978
35.6 C (96.1 F)
1979
32.8 C (91.0 F)
1980
34.4 C (93.9 F)
1981
34.4 C (93.9 F)
1982
33.3 C (91.9 F)
1983
35.6 C (96.1 F)
1984
36.1 C (97.0 F)
1988
37.8 C (100.0 F)
1989
32.8 C (91.0 F)
1990
33.3 C (91.9 F)
1991
33.3 C (91.9 F)
1992
32.2 C (90.0 F)
1993
33.9 C (93.0 F)
1994
35.6 C (96.1 F)
1995
36.7 C (98.1 F)
1996
33.9 C (93.0 F)
1997
23.9 C (75.0 F)
Coldest night (TNn)
The coldest night of the year at Saint Charles, 1940 to 1997. The record is -31.7 C (-25.1 F) in 1982, marked on the chart; the median year is -23.3 C (-9.9 F).
Coldest night (TNn) at Saint Charles by year
Year
Coldest night (TNn)
1940
n/a
1941
n/a
1942
n/a
1943
n/a
1944
n/a
1945
n/a
1946
n/a
1947
n/a
1948
n/a
1949
n/a
1950
n/a
1951
n/a
1952
-11.7 C (10.9 F)
1953
-17.8 C (0.0 F)
1954
-21.1 C (-6.0 F)
1955
-20.0 C (-4.0 F)
1956
-19.4 C (-2.9 F)
1957
-20.6 C (-5.1 F)
1958
-23.3 C (-9.9 F)
1959
-27.2 C (-17.0 F)
1960
-22.2 C (-8.0 F)
1961
-21.1 C (-6.0 F)
1962
-26.7 C (-16.1 F)
1963
-24.4 C (-11.9 F)
1964
-23.3 C (-9.9 F)
1965
-23.9 C (-11.0 F)
1966
-24.4 C (-11.9 F)
1967
-24.4 C (-11.9 F)
1968
-24.4 C (-11.9 F)
1969
-21.1 C (-6.0 F)
1970
-22.2 C (-8.0 F)
1971
-22.8 C (-9.0 F)
1972
-25.0 C (-13.0 F)
1973
-27.2 C (-17.0 F)
1974
-24.4 C (-11.9 F)
1975
-20.0 C (-4.0 F)
1976
-28.3 C (-18.9 F)
1977
-23.3 C (-9.9 F)
1978
-26.7 C (-16.1 F)
1979
-28.9 C (-20.0 F)
1980
-21.7 C (-7.1 F)
1981
-18.9 C (-2.0 F)
1982
-31.7 C (-25.1 F)
1983
-22.2 C (-8.0 F)
1984
-30.6 C (-23.1 F)
1988
-20.6 C (-5.1 F)
1989
-26.1 C (-15.0 F)
1990
-23.9 C (-11.0 F)
1991
-22.2 C (-8.0 F)
1992
-23.3 C (-9.9 F)
1993
-27.8 C (-18.0 F)
1994
-31.1 C (-24.0 F)
1995
-22.2 C (-8.0 F)
1996
-29.4 C (-20.9 F)
1997
-23.3 C (-9.9 F)
Wettest day (Rx1day)
The wettest day of the year at Saint Charles, 1940 to 1997. The record is 121.4 mm (4.8 in) in 1988, marked on the chart; the median year is 52.1 mm (2.1 in).
Wettest day (Rx1day) at Saint Charles by year
Year
Wettest day (Rx1day)
1940
34.8 mm (1.4 in)
1941
47.8 mm (1.9 in)
1942
52.3 mm (2.1 in)
1943
33.0 mm (1.3 in)
1944
28.7 mm (1.1 in)
1945
84.6 mm (3.3 in)
1946
32.3 mm (1.3 in)
1947
58.4 mm (2.3 in)
1948
52.1 mm (2.1 in)
1949
70.6 mm (2.8 in)
1950
95.5 mm (3.8 in)
1951
61.0 mm (2.4 in)
1952
42.9 mm (1.7 in)
1953
28.4 mm (1.1 in)
1954
57.9 mm (2.3 in)
1955
36.8 mm (1.4 in)
1956
111.0 mm (4.4 in)
1957
85.1 mm (3.4 in)
1958
49.8 mm (2.0 in)
1959
49.5 mm (1.9 in)
1960
49.0 mm (1.9 in)
1961
53.1 mm (2.1 in)
1962
29.0 mm (1.1 in)
1963
53.3 mm (2.1 in)
1964
36.3 mm (1.4 in)
1965
34.0 mm (1.3 in)
1966
39.4 mm (1.6 in)
1967
54.6 mm (2.1 in)
1968
52.8 mm (2.1 in)
1969
45.0 mm (1.8 in)
1970
42.4 mm (1.7 in)
1971
42.7 mm (1.7 in)
1972
65.3 mm (2.6 in)
1973
46.2 mm (1.8 in)
1974
34.8 mm (1.4 in)
1975
79.2 mm (3.1 in)
1976
88.9 mm (3.5 in)
1977
52.8 mm (2.1 in)
1978
44.5 mm (1.8 in)
1979
31.5 mm (1.2 in)
1980
35.6 mm (1.4 in)
1981
68.6 mm (2.7 in)
1982
47.2 mm (1.9 in)
1983
47.0 mm (1.9 in)
1984
49.5 mm (1.9 in)
1988
121.4 mm (4.8 in)
1989
52.8 mm (2.1 in)
1990
74.4 mm (2.9 in)
1991
75.9 mm (3.0 in)
1992
56.4 mm (2.2 in)
1993
58.4 mm (2.3 in)
1994
78.7 mm (3.1 in)
1995
56.1 mm (2.2 in)
1996
73.4 mm (2.9 in)
1997
38.9 mm (1.5 in)
Wettest five days (Rx5day)
The wettest five days of the year at Saint Charles, 1940 to 1997. The record is 165.8 mm (6.5 in) in 1994, marked on the chart; the median year is 70.6 mm (2.8 in).
Wettest five days (Rx5day) at Saint Charles by year
Year
Wettest five days (Rx5day)
1940
69.9 mm (2.8 in)
1941
64.6 mm (2.5 in)
1942
28.0 mm (1.1 in)
1943
48.2 mm (1.9 in)
1944
48.5 mm (1.9 in)
1945
100.4 mm (4.0 in)
1946
49.3 mm (1.9 in)
1947
101.4 mm (4.0 in)
1948
62.0 mm (2.4 in)
1949
102.8 mm (4.0 in)
1950
142.8 mm (5.6 in)
1951
72.7 mm (2.9 in)
1952
128.8 mm (5.1 in)
1953
54.6 mm (2.1 in)
1954
99.4 mm (3.9 in)
1955
63.0 mm (2.5 in)
1956
116.4 mm (4.6 in)
1957
149.9 mm (5.9 in)
1958
65.1 mm (2.6 in)
1959
54.3 mm (2.1 in)
1960
57.6 mm (2.3 in)
1961
77.0 mm (3.0 in)
1962
61.0 mm (2.4 in)
1963
53.8 mm (2.1 in)
1964
62.3 mm (2.5 in)
1965
58.4 mm (2.3 in)
1966
53.6 mm (2.1 in)
1967
61.5 mm (2.4 in)
1968
75.2 mm (3.0 in)
1969
64.2 mm (2.5 in)
1970
70.6 mm (2.8 in)
1971
56.5 mm (2.2 in)
1972
102.8 mm (4.0 in)
1973
88.1 mm (3.5 in)
1974
58.7 mm (2.3 in)
1975
146.8 mm (5.8 in)
1976
125.2 mm (4.9 in)
1977
85.8 mm (3.4 in)
1978
62.3 mm (2.5 in)
1979
59.7 mm (2.4 in)
1980
43.4 mm (1.7 in)
1981
140.4 mm (5.5 in)
1982
58.2 mm (2.3 in)
1983
83.9 mm (3.3 in)
1984
67.1 mm (2.6 in)
1988
126.0 mm (5.0 in)
1989
102.6 mm (4.0 in)
1990
82.1 mm (3.2 in)
1991
93.7 mm (3.7 in)
1992
82.4 mm (3.2 in)
1993
84.4 mm (3.3 in)
1994
165.8 mm (6.5 in)
1995
63.7 mm (2.5 in)
1996
108.2 mm (4.3 in)
1997
71.9 mm (2.8 in)
Longest dry spell (CDD)
The longest dry spell of the year at Saint Charles, 1940 to 1997. The record is 36 days in 1979, marked on the chart; the median year is 19 days.
Longest dry spell (CDD) at Saint Charles by year
Year
Longest dry spell (CDD)
1940
16 days
1941
19 days
1942
3 days
1943
25 days
1944
23 days
1945
34 days
1946
25 days
1947
16 days
1948
21 days
1949
18 days
1950
16 days
1951
16 days
1952
21 days
1953
20 days
1954
19 days
1955
22 days
1956
17 days
1957
22 days
1958
30 days
1959
12 days
1960
21 days
1961
23 days
1962
20 days
1963
17 days
1964
17 days
1965
17 days
1966
16 days
1967
21 days
1968
15 days
1969
19 days
1970
15 days
1971
21 days
1972
14 days
1973
27 days
1974
15 days
1975
14 days
1976
24 days
1977
26 days
1978
23 days
1979
36 days
1980
18 days
1981
20 days
1982
16 days
1983
17 days
1984
16 days
1988
25 days
1989
26 days
1990
18 days
1991
29 days
1992
19 days
1993
14 days
1994
24 days
1995
17 days
1996
24 days
1997
11 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
37 years with a frost
Across 37 years with a frost, the median last spring frost at Saint Charles falls on 8 May and the median first autumn frost on 30 September, which leaves a median of 150 days between them.
Fitted over all years, the growing season changes by -4.1 days per decade at this station.
Frost dates and growing season at Saint Charles
Measure
Median, all years
Earliest period
Recent period (1960 to 1996)
Recent against earliest
Fitted trend
Last spring frost
8 May
n/a
8 May
n/a
+1.7 days per decade
First autumn frost
30 September
n/a
30 September
n/a
-2.4 days per decade
Growing days
150 days
n/a
148 days
n/a
-4.1 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
49 years, 1944 to 1996
A day with at least 51.7 mm (2.0 in) of rain is expected about once in 2 years. A day with at least 116.4 mm (4.6 in) of rain is expected about once in 100 years.
Rainfall return levels at Saint Charles: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
51.7 mm (2.0 in)
5 years
68.8 mm (2.7 in)
10 years
80.2 mm (3.2 in)
25 years
94.7 mm (3.7 in)
50 years
105.5 mm (4.2 in)
Longer than the 49 years of record
100 years
116.4 mm (4.6 in)
Longer than the 49 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, 49 years of values from 1944 to 1996.
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: 111.0 mm (4.4 in) in 1956; 95.5 mm (3.8 in) in 1950; 88.9 mm (3.5 in) in 1976.
Download the Data
Data for Saint Charles standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Saint Charles 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.