Record envelope, standing records and threshold days for Old Mission (USC00206156), Michigan, United States, with 37 years of record.
Key Facts for Old Mission
Old Mission (USC00206156) is a weather station in Michigan, United States at 44.95 latitude and -85.48 longitude, 259 m (848 ft) above sea level.
The station reports from 1894 to 1930, 37 years of record.
1,464 records set at Old Mission still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Old Mission set a daily record low maximum temperature of -7.2 C (19.0 F) on 28 November 1930.
About the Station
Location: Michigan, United States, 44.95 latitude, -85.48 longitude.
Elevation: 259 m (848 ft).
Period of record: 1894 to 1930, 37 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 Old Mission. 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 Old Mission, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
12.8 C (55.0 F)
-27.2 C (-17.0 F)
n/a
n/a
Feb
15.6 C (60.1 F)
-30.6 C (-23.1 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)
-13.3 C (8.1 F)
n/a
n/a
May
33.9 C (93.0 F)
-6.1 C (21.0 F)
n/a
n/a
Jun
37.2 C (99.0 F)
-0.6 C (30.9 F)
n/a
n/a
Jul
39.4 C (102.9 F)
5.6 C (42.1 F)
n/a
n/a
Aug
36.1 C (97.0 F)
2.8 C (37.0 F)
n/a
n/a
Sep
35.0 C (95.0 F)
-1.1 C (30.0 F)
n/a
n/a
Oct
31.1 C (88.0 F)
-6.1 C (21.0 F)
n/a
n/a
Nov
22.2 C (72.0 F)
-15.0 C (5.0 F)
n/a
n/a
Dec
15.6 C (60.1 F)
-21.1 C (-6.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Old Mission still stand. 1930 holds the most, with 68.
Standing records at Old Mission by the year they were set
Year set
Standing records
1894
47
1895
61
1896
47
1897
29
1898
35
1899
62
1900
42
1901
24
1902
26
1903
42
1904
40
1905
16
1906
30
1907
34
1908
35
1909
49
1910
33
1911
35
1912
42
1913
43
1914
39
1915
42
1916
49
1917
46
1918
39
1919
29
1920
47
1921
48
1922
26
1923
49
1924
33
1925
43
1926
32
1927
38
1928
36
1929
28
1930
68
All-Time Record Progression
1 new records
1 all-time records were set at Old Mission between 29 June 1927 and 29 June 1927. Each dot is a new record.
When Old Mission set new all-time records
Date
Kind
Detail
1927-06-29
Record high minimum temperature
Record high minimum temperature 25.6 C (78.1 F)
Wettest Day of Each Month
Aug: 82.6 mm (3.3 in)
The wettest day on record for each calendar month at Old Mission. The most was 82.6 mm (3.3 in) on 25 August 1910.
Record daily precipitation for each month at Old Mission
Month
Record daily precipitation (mm)
Date
Jan
50.8 mm (2.0 in)
23 January 1898
Feb
30.5 mm (1.2 in)
22 February 1913
Mar
42.2 mm (1.7 in)
20 March 1921
Apr
53.3 mm (2.1 in)
30 April 1897
May
68.6 mm (2.7 in)
27 May 1896
Jun
52.1 mm (2.1 in)
18 June 1894
Jul
55.9 mm (2.2 in)
22 July 1909
Aug
82.6 mm (3.3 in)
25 August 1910
Sep
63.5 mm (2.5 in)
26 September 1930
Oct
41.9 mm (1.6 in)
6 October 1911
Nov
62.2 mm (2.4 in)
15 November 1927
Dec
35.6 mm (1.4 in)
11 December 1899
Period of Record Coverage
1894 to 1930
Complete yearUnder 90 percent of days
37 years of record at Old Mission, 1894 to 1930. 2 years have data for under 90 percent of days and are left out of rankings: 1894, 1902.
Cooler than the station meanWarmer than the station mean
One stripe for each of 31 complete years at Old Mission, 1895 to 1929. Blue stripes are years cooler than the station's own mean of 6.9 C (44.5 F); red stripes are warmer. The coolest year was 1917, at 4.3 C (39.7 F), and the warmest was 1921, at 9.3 C (48.7 F). The strongest colour marks a difference of 2.7 C (4.9 F).
Annual mean temperature at Old Mission as warming stripes, 1895 to 1929
Year
Annual mean temperature
Difference from the station mean
1895
7.2 C
+0.30 C
1897
7.1 C
+0.14 C
1898
8.3 C
+1.32 C
1899
7.3 C
+0.34 C
1900
7.7 C
+0.79 C
1901
7.3 C
+0.40 C
1903
6.9 C
-0.02 C
1905
6.5 C
-0.48 C
1906
7.6 C
+0.63 C
1907
5.8 C
-1.14 C
1908
7.9 C
+0.93 C
1909
7.3 C
+0.39 C
1910
7.4 C
+0.50 C
1911
7.4 C
+0.49 C
1912
5.4 C
-1.50 C
1913
7.0 C
+0.04 C
1914
6.5 C
-0.46 C
1915
6.5 C
-0.49 C
1916
6.0 C
-0.95 C
1917
4.3 C
-2.66 C
1918
6.5 C
-0.44 C
1919
7.9 C
+0.96 C
1920
6.6 C
-0.38 C
1921
9.3 C
+2.36 C
1923
6.8 C
-0.14 C
1924
6.2 C
-0.70 C
1925
7.2 C
+0.21 C
1926
5.8 C
-1.17 C
1927
7.9 C
+0.97 C
1928
6.8 C
-0.12 C
1929
6.8 C
-0.12 C
The fitted trend in annual mean temperature here over 1895 to 1929 is -0.2 C (-0.5 to 0.2) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.3 F (-1.0 to 0.3) per decade. The slope is a straight line fitted to 31 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Old Mission
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.2 C (-0.5 to 0.2) per decade
-0.3 F (-1.0 to 0.3) per decade
1895 to 1929
31
Not clearly different from zero
Mean daily maximum
-0.35 C (-0.70 to 0.00) per decade
-0.63 F (-1.26 to -0.01) per decade
1895 to 1929
31
Fall
Mean daily minimum
-0.01 C (-0.42 to 0.40) per decade
-0.02 F (-0.76 to 0.72) per decade
1895 to 1929
31
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
1894 to 1930
Yearly extremes at Old Mission: 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)
1916
34.4 C (93.9 F)
37
Coldest night (TNn)
-30.6 C (-23.1 F)
1899
-22.8 C (-9.0 F)
37
Wettest day (Rx1day)
82.6 mm (3.3 in)
1910
46.7 mm (1.8 in)
37
Wettest five days (Rx5day)
138.7 mm (5.5 in)
1924
69.6 mm (2.7 in)
37
Longest dry spell (CDD)
33 days
1900
20 days
37
Hottest day (TXx)
The hottest day of the year at Old Mission, 1894 to 1930. The record is 39.4 C (102.9 F) in 1916, marked on the chart; the median year is 34.4 C (93.9 F).
Hottest day (TXx) at Old Mission by year
Year
Hottest day (TXx)
1894
37.8 C (100.0 F)
1895
33.9 C (93.0 F)
1896
32.8 C (91.0 F)
1897
34.4 C (93.9 F)
1898
35.0 C (95.0 F)
1899
35.6 C (96.1 F)
1900
35.0 C (95.0 F)
1901
37.2 C (99.0 F)
1902
31.1 C (88.0 F)
1903
32.2 C (90.0 F)
1904
34.4 C (93.9 F)
1905
32.2 C (90.0 F)
1906
34.4 C (93.9 F)
1907
33.3 C (91.9 F)
1908
32.8 C (91.0 F)
1909
33.9 C (93.0 F)
1910
36.7 C (98.1 F)
1911
36.1 C (97.0 F)
1912
35.0 C (95.0 F)
1913
35.0 C (95.0 F)
1914
34.4 C (93.9 F)
1915
31.7 C (89.1 F)
1916
39.4 C (102.9 F)
1917
36.7 C (98.1 F)
1918
35.6 C (96.1 F)
1919
36.7 C (98.1 F)
1920
31.7 C (89.1 F)
1921
38.3 C (100.9 F)
1922
32.8 C (91.0 F)
1923
33.9 C (93.0 F)
1924
31.1 C (88.0 F)
1925
32.8 C (91.0 F)
1926
32.8 C (91.0 F)
1927
33.9 C (93.0 F)
1928
33.9 C (93.0 F)
1929
35.0 C (95.0 F)
1930
35.0 C (95.0 F)
Coldest night (TNn)
The coldest night of the year at Old Mission, 1894 to 1930. The record is -30.6 C (-23.1 F) in 1899, marked on the chart; the median year is -22.8 C (-9.0 F).
Coldest night (TNn) at Old Mission by year
Year
Coldest night (TNn)
1894
-24.4 C (-11.9 F)
1895
-26.7 C (-16.1 F)
1896
-19.4 C (-2.9 F)
1897
-18.9 C (-2.0 F)
1898
-18.9 C (-2.0 F)
1899
-30.6 C (-23.1 F)
1900
-21.1 C (-6.0 F)
1901
-18.3 C (-0.9 F)
1902
-20.0 C (-4.0 F)
1903
-21.7 C (-7.1 F)
1904
-27.2 C (-17.0 F)
1905
-24.4 C (-11.9 F)
1906
-20.6 C (-5.1 F)
1907
-22.2 C (-8.0 F)
1908
-19.4 C (-2.9 F)
1909
-18.9 C (-2.0 F)
1910
-21.7 C (-7.1 F)
1911
-17.8 C (0.0 F)
1912
-30.6 C (-23.1 F)
1913
-26.1 C (-15.0 F)
1914
-26.1 C (-15.0 F)
1915
-22.8 C (-9.0 F)
1916
-24.4 C (-11.9 F)
1917
-30.0 C (-22.0 F)
1918
-27.8 C (-18.0 F)
1919
-21.1 C (-6.0 F)
1920
-24.4 C (-11.9 F)
1921
-15.0 C (5.0 F)
1922
-20.0 C (-4.0 F)
1923
-23.3 C (-9.9 F)
1924
-26.1 C (-15.0 F)
1925
-22.8 C (-9.0 F)
1926
-21.7 C (-7.1 F)
1927
-26.7 C (-16.1 F)
1928
-24.4 C (-11.9 F)
1929
-23.3 C (-9.9 F)
1930
-21.7 C (-7.1 F)
Wettest day (Rx1day)
The wettest day of the year at Old Mission, 1894 to 1930. The record is 82.6 mm (3.3 in) in 1910, marked on the chart; the median year is 46.7 mm (1.8 in).
Wettest day (Rx1day) at Old Mission by year
Year
Wettest day (Rx1day)
1894
52.1 mm (2.1 in)
1895
36.8 mm (1.4 in)
1896
68.6 mm (2.7 in)
1897
53.3 mm (2.1 in)
1898
50.8 mm (2.0 in)
1899
35.6 mm (1.4 in)
1900
36.8 mm (1.4 in)
1901
39.9 mm (1.6 in)
1902
38.1 mm (1.5 in)
1903
68.6 mm (2.7 in)
1904
31.2 mm (1.2 in)
1905
66.0 mm (2.6 in)
1906
49.5 mm (1.9 in)
1907
41.1 mm (1.6 in)
1908
49.3 mm (1.9 in)
1909
55.9 mm (2.2 in)
1910
82.6 mm (3.3 in)
1911
41.9 mm (1.6 in)
1912
42.9 mm (1.7 in)
1913
41.9 mm (1.6 in)
1914
54.1 mm (2.1 in)
1915
42.7 mm (1.7 in)
1916
48.5 mm (1.9 in)
1917
37.6 mm (1.5 in)
1918
59.9 mm (2.4 in)
1919
33.0 mm (1.3 in)
1920
40.6 mm (1.6 in)
1921
42.2 mm (1.7 in)
1922
48.5 mm (1.9 in)
1923
41.4 mm (1.6 in)
1924
46.7 mm (1.8 in)
1925
25.7 mm (1.0 in)
1926
47.0 mm (1.9 in)
1927
62.2 mm (2.4 in)
1928
55.6 mm (2.2 in)
1929
40.6 mm (1.6 in)
1930
63.5 mm (2.5 in)
Wettest five days (Rx5day)
The wettest five days of the year at Old Mission, 1894 to 1930. The record is 138.7 mm (5.5 in) in 1924, marked on the chart; the median year is 69.6 mm (2.7 in).
Wettest five days (Rx5day) at Old Mission by year
Year
Wettest five days (Rx5day)
1894
67.3 mm (2.6 in)
1895
50.0 mm (2.0 in)
1896
78.0 mm (3.1 in)
1897
73.3 mm (2.9 in)
1898
64.3 mm (2.5 in)
1899
82.3 mm (3.2 in)
1900
67.1 mm (2.6 in)
1901
69.6 mm (2.7 in)
1902
50.2 mm (2.0 in)
1903
111.8 mm (4.4 in)
1904
47.7 mm (1.9 in)
1905
73.4 mm (2.9 in)
1906
70.6 mm (2.8 in)
1907
54.6 mm (2.1 in)
1908
83.9 mm (3.3 in)
1909
85.9 mm (3.4 in)
1910
115.6 mm (4.6 in)
1911
84.9 mm (3.3 in)
1912
88.8 mm (3.5 in)
1913
66.8 mm (2.6 in)
1914
55.6 mm (2.2 in)
1915
73.7 mm (2.9 in)
1916
48.5 mm (1.9 in)
1917
60.7 mm (2.4 in)
1918
69.6 mm (2.7 in)
1919
59.9 mm (2.4 in)
1920
61.4 mm (2.4 in)
1921
53.6 mm (2.1 in)
1922
76.5 mm (3.0 in)
1923
77.4 mm (3.0 in)
1924
138.7 mm (5.5 in)
1925
67.5 mm (2.7 in)
1926
65.6 mm (2.6 in)
1927
82.6 mm (3.3 in)
1928
73.4 mm (2.9 in)
1929
50.2 mm (2.0 in)
1930
66.1 mm (2.6 in)
Longest dry spell (CDD)
The longest dry spell of the year at Old Mission, 1894 to 1930. The record is 33 days in 1900, marked on the chart; the median year is 20 days.
Longest dry spell (CDD) at Old Mission by year
Year
Longest dry spell (CDD)
1894
20 days
1895
14 days
1896
17 days
1897
20 days
1898
23 days
1899
20 days
1900
33 days
1901
22 days
1902
13 days
1903
24 days
1904
24 days
1905
16 days
1906
20 days
1907
16 days
1908
25 days
1909
15 days
1910
28 days
1911
15 days
1912
23 days
1913
12 days
1914
21 days
1915
22 days
1916
14 days
1917
19 days
1918
32 days
1919
17 days
1920
18 days
1921
15 days
1922
17 days
1923
24 days
1924
23 days
1925
25 days
1926
12 days
1927
20 days
1928
14 days
1929
21 days
1930
22 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
31 years with a frost
Across 31 years with a frost, the median last spring frost at Old Mission falls on 14 May and the median first autumn frost on 19 October, which leaves a median of 160 days between them.
Fitted over all years, the growing season changes by -4.3 days per decade at this station.
Frost dates and growing season at Old Mission
Measure
Median, all years
Earliest period
Recent period (1897 to 1929)
Recent against earliest
Fitted trend
Last spring frost
14 May
n/a
14 May
n/a
+1.9 days per decade
First autumn frost
19 October
n/a
20 October
n/a
-2.4 days per decade
Growing days
160 days
n/a
162 days
n/a
-4.3 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
37 years, 1894 to 1930
A day with at least 45.9 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 86.5 mm (3.4 in) of rain is expected about once in 100 years.
Rainfall return levels at Old Mission: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
45.9 mm (1.8 in)
5 years
56.9 mm (2.2 in)
10 years
64.1 mm (2.5 in)
25 years
73.2 mm (2.9 in)
50 years
79.9 mm (3.1 in)
Longer than the 37 years of record
100 years
86.5 mm (3.4 in)
Longer than the 37 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, 37 years of values from 1894 to 1930.
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: 82.6 mm (3.3 in) in 1910; 68.6 mm (2.7 in) in 1896; 68.6 mm (2.7 in) in 1903.
Download the Data
Data for Old Mission standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Old Mission 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.