Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Goderich. 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 Goderich, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
17.2 C (63.0 F)
-27.8 C (-18.0 F)
n/a
n/a
Feb
16.1 C (61.0 F)
-30.6 C (-23.1 F)
n/a
n/a
Mar
24.4 C (75.9 F)
-26.1 C (-15.0 F)
n/a
n/a
Apr
28.9 C (84.0 F)
-14.4 C (6.1 F)
n/a
n/a
May
31.7 C (89.1 F)
-6.7 C (19.9 F)
n/a
n/a
Jun
35.6 C (96.1 F)
0.0 C (32.0 F)
n/a
n/a
Jul
37.2 C (99.0 F)
3.9 C (39.0 F)
n/a
n/a
Aug
36.1 C (97.0 F)
3.9 C (39.0 F)
n/a
n/a
Sep
35.0 C (95.0 F)
-1.1 C (30.0 F)
n/a
n/a
Oct
28.3 C (82.9 F)
-6.7 C (19.9 F)
n/a
n/a
Nov
23.9 C (75.0 F)
-17.8 C (0.0 F)
n/a
n/a
Dec
17.2 C (63.0 F)
-25.6 C (-14.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Goderich still stand. 1873 holds the most, with 67.
Standing records at Goderich by the year they were set
Year set
Standing records
1866
3
1867
32
1868
29
1869
44
1870
10
1871
53
1872
29
1873
67
1874
27
1875
59
1876
41
1877
38
1878
31
1879
49
1880
50
1881
44
1882
20
1883
31
1884
41
1885
64
1886
44
1887
36
1929
11
1930
45
1931
32
1932
21
1933
41
1934
41
1935
27
1936
39
1937
10
1938
24
1939
11
1940
30
1941
18
1942
22
1943
23
1944
22
1945
47
1946
38
1947
47
1948
21
1949
28
1950
24
All-Time Record Progression
2 new records
2 all-time records were set at Goderich between 15 July 1945 and 13 August 1947. Each dot is a new record.
When Goderich set new all-time records
Date
Kind
Detail
1945-07-15
Record daily precipitation
Record daily precipitation 90.2 mm (3.6 in)
1947-08-13
Record high minimum temperature
Record high minimum temperature 25.0 C (77.0 F)
Wettest Day of Each Month
Jul: 90.2 mm (3.6 in)
The wettest day on record for each calendar month at Goderich. The most was 90.2 mm (3.6 in) on 15 July 1945.
Record daily precipitation for each month at Goderich
Month
Record daily precipitation (mm)
Date
Jan
36.8 mm (1.4 in)
24 January 1887
Feb
58.4 mm (2.3 in)
8 February 1887
Mar
37.8 mm (1.5 in)
3 March 1871
Apr
43.4 mm (1.7 in)
5 April 1937
May
56.1 mm (2.2 in)
7 May 1870
Jun
79.2 mm (3.1 in)
27 June 1869
Jul
90.2 mm (3.6 in)
15 July 1945
Aug
76.2 mm (3.0 in)
18 August 1887
Sep
56.4 mm (2.2 in)
3 September 1878
Oct
54.6 mm (2.1 in)
28 October 1876
Nov
51.8 mm (2.0 in)
7 November 1943
Dec
41.4 mm (1.6 in)
23 December 1867
Period of Record Coverage
1866 to 1950
Complete yearUnder 90 percent of days
44 years of record at Goderich, 1866 to 1950. 7 years have data for under 90 percent of days and are left out of rankings: 1866, 1867, 1868, 1874, 1929, 1939, 1941.
Cooler than the station meanWarmer than the station mean
One stripe for each of 36 complete years at Goderich, 1867 to 1950. Blue stripes are years cooler than the station's own mean of 7.4 C (45.3 F); red stripes are warmer. The coolest year was 1875, at 5.0 C (41.0 F), and the warmest was 1931, at 9.4 C (48.9 F). The strongest colour marks a difference of 2.4 C (4.3 F).
Annual mean temperature at Goderich as warming stripes, 1867 to 1950
Year
Annual mean temperature
Difference from the station mean
1867
7.0 C
-0.43 C
1868
6.3 C
-1.09 C
1869
6.1 C
-1.34 C
1870
7.8 C
+0.38 C
1871
6.5 C
-0.89 C
1872
5.6 C
-1.85 C
1873
5.5 C
-1.88 C
1875
5.0 C
-2.39 C
1876
7.4 C
-0.04 C
1877
8.0 C
+0.61 C
1878
8.8 C
+1.37 C
1879
7.1 C
-0.35 C
1880
7.9 C
+0.51 C
1881
7.7 C
+0.33 C
1882
8.0 C
+0.58 C
1883
5.9 C
-1.49 C
1884
7.1 C
-0.32 C
1885
5.3 C
-2.06 C
1886
6.5 C
-0.88 C
1887
6.8 C
-0.62 C
1930
8.1 C
+0.73 C
1931
9.4 C
+1.97 C
1932
8.4 C
+0.98 C
1933
8.6 C
+1.24 C
1934
7.5 C
+0.07 C
1935
7.5 C
+0.12 C
1936
7.4 C
-0.05 C
1940
7.2 C
-0.22 C
1943
7.2 C
-0.16 C
1944
8.6 C
+1.19 C
1945
8.0 C
+0.63 C
1946
9.2 C
+1.77 C
1947
8.3 C
+0.92 C
1948
8.5 C
+1.14 C
1949
9.0 C
+1.62 C
1950
7.5 C
+0.06 C
The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1867 to 1950. In Fahrenheit: 0.4 F (0.2 to 0.6) per decade. The slope is a straight line fitted to 36 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Goderich
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.2 C (0.1 to 0.3) per decade
0.4 F (0.2 to 0.6) per decade
1867 to 1950
36
Rise
Mean daily maximum
0.2 C (0.1 to 0.3) per decade
0.4 F (0.2 to 0.5) per decade
1867 to 1950
36
Rise
Mean daily minimum
0.2 C (0.1 to 0.3) per decade
0.4 F (0.2 to 0.6) per decade
1867 to 1950
36
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
1866 to 1950
Yearly extremes at Goderich: 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)
1936
32.2 C (90.0 F)
44
Coldest night (TNn)
-30.6 C (-23.1 F)
1934
-21.7 C (-7.1 F)
44
Wettest day (Rx1day)
90.2 mm (3.6 in)
1945
48.4 mm (1.9 in)
44
Wettest five days (Rx5day)
100.9 mm (4.0 in)
1945
68.4 mm (2.7 in)
44
Longest dry spell (CDD)
42 days
1868
17 days
44
Hottest day (TXx)
The hottest day of the year at Goderich, 1866 to 1950. The record is 37.2 C (99.0 F) in 1936, marked on the chart; the median year is 32.2 C (90.0 F).
Hottest day (TXx) at Goderich by year
Year
Hottest day (TXx)
1866
12.8 C (55.0 F)
1867
30.0 C (86.0 F)
1868
32.2 C (90.0 F)
1869
30.0 C (86.0 F)
1870
32.2 C (90.0 F)
1871
32.8 C (91.0 F)
1872
33.3 C (91.9 F)
1873
32.2 C (90.0 F)
1874
31.7 C (89.1 F)
1875
30.6 C (87.1 F)
1876
31.7 C (89.1 F)
1877
30.6 C (87.1 F)
1878
32.2 C (90.0 F)
1879
32.8 C (91.0 F)
1880
30.6 C (87.1 F)
1881
33.9 C (93.0 F)
1882
30.6 C (87.1 F)
1883
30.6 C (87.1 F)
1884
32.8 C (91.0 F)
1885
31.7 C (89.1 F)
1886
32.2 C (90.0 F)
1887
33.3 C (91.9 F)
1929
32.2 C (90.0 F)
1930
32.2 C (90.0 F)
1931
35.0 C (95.0 F)
1932
30.6 C (87.1 F)
1933
35.0 C (95.0 F)
1934
35.6 C (96.1 F)
1935
32.8 C (91.0 F)
1936
37.2 C (99.0 F)
1937
31.7 C (89.1 F)
1938
31.7 C (89.1 F)
1939
33.9 C (93.0 F)
1940
32.8 C (91.0 F)
1941
33.9 C (93.0 F)
1942
32.2 C (90.0 F)
1943
31.7 C (89.1 F)
1944
36.1 C (97.0 F)
1945
33.3 C (91.9 F)
1946
32.8 C (91.0 F)
1947
33.9 C (93.0 F)
1948
34.4 C (93.9 F)
1949
33.9 C (93.0 F)
1950
29.4 C (84.9 F)
Coldest night (TNn)
The coldest night of the year at Goderich, 1866 to 1950. The record is -30.6 C (-23.1 F) in 1934, marked on the chart; the median year is -21.7 C (-7.1 F).
Coldest night (TNn) at Goderich by year
Year
Coldest night (TNn)
1866
-22.2 C (-8.0 F)
1867
-24.4 C (-11.9 F)
1868
-23.9 C (-11.0 F)
1869
-20.0 C (-4.0 F)
1870
-19.4 C (-2.9 F)
1871
-24.4 C (-11.9 F)
1872
-25.0 C (-13.0 F)
1873
-27.8 C (-18.0 F)
1874
-17.2 C (1.0 F)
1875
-27.8 C (-18.0 F)
1876
-21.1 C (-6.0 F)
1877
-24.4 C (-11.9 F)
1878
-13.9 C (7.0 F)
1879
-23.3 C (-9.9 F)
1880
-20.6 C (-5.1 F)
1881
-28.3 C (-18.9 F)
1882
-26.7 C (-16.1 F)
1883
-22.2 C (-8.0 F)
1884
-23.9 C (-11.0 F)
1885
-26.1 C (-15.0 F)
1886
-26.7 C (-16.1 F)
1887
-23.3 C (-9.9 F)
1929
-14.4 C (6.1 F)
1930
-21.7 C (-7.1 F)
1931
-15.0 C (5.0 F)
1932
-14.4 C (6.1 F)
1933
-21.7 C (-7.1 F)
1934
-30.6 C (-23.1 F)
1935
-21.7 C (-7.1 F)
1936
-23.9 C (-11.0 F)
1937
-14.4 C (6.1 F)
1938
-20.0 C (-4.0 F)
1939
-18.3 C (-0.9 F)
1940
-20.0 C (-4.0 F)
1941
-16.7 C (1.9 F)
1942
-25.6 C (-14.1 F)
1943
-28.3 C (-18.9 F)
1944
-16.7 C (1.9 F)
1945
-20.0 C (-4.0 F)
1946
-18.9 C (-2.0 F)
1947
-17.8 C (0.0 F)
1948
-27.2 C (-17.0 F)
1949
-14.4 C (6.1 F)
1950
-18.9 C (-2.0 F)
Wettest day (Rx1day)
The wettest day of the year at Goderich, 1866 to 1950. The record is 90.2 mm (3.6 in) in 1945, marked on the chart; the median year is 48.4 mm (1.9 in).
Wettest day (Rx1day) at Goderich by year
Year
Wettest day (Rx1day)
1866
28.4 mm (1.1 in)
1867
41.4 mm (1.6 in)
1868
61.5 mm (2.4 in)
1869
79.2 mm (3.1 in)
1870
61.0 mm (2.4 in)
1871
39.4 mm (1.6 in)
1872
35.6 mm (1.4 in)
1873
35.6 mm (1.4 in)
1874
23.6 mm (0.9 in)
1875
34.3 mm (1.4 in)
1876
54.6 mm (2.1 in)
1877
57.2 mm (2.3 in)
1878
56.4 mm (2.2 in)
1879
57.2 mm (2.3 in)
1880
58.4 mm (2.3 in)
1881
29.2 mm (1.1 in)
1882
35.3 mm (1.4 in)
1883
77.0 mm (3.0 in)
1884
31.8 mm (1.3 in)
1885
40.6 mm (1.6 in)
1886
39.4 mm (1.6 in)
1887
76.2 mm (3.0 in)
1929
32.5 mm (1.3 in)
1930
39.4 mm (1.6 in)
1931
48.8 mm (1.9 in)
1932
53.3 mm (2.1 in)
1933
33.0 mm (1.3 in)
1934
31.0 mm (1.2 in)
1935
58.4 mm (2.3 in)
1936
55.6 mm (2.2 in)
1937
48.0 mm (1.9 in)
1938
55.9 mm (2.2 in)
1939
30.7 mm (1.2 in)
1940
37.8 mm (1.5 in)
1941
45.7 mm (1.8 in)
1942
46.7 mm (1.8 in)
1943
64.5 mm (2.5 in)
1944
62.2 mm (2.4 in)
1945
90.2 mm (3.6 in)
1946
35.8 mm (1.4 in)
1947
49.8 mm (2.0 in)
1948
57.9 mm (2.3 in)
1949
76.2 mm (3.0 in)
1950
65.0 mm (2.6 in)
Wettest five days (Rx5day)
The wettest five days of the year at Goderich, 1866 to 1950. The record is 100.9 mm (4.0 in) in 1945, marked on the chart; the median year is 68.4 mm (2.7 in).
Wettest five days (Rx5day) at Goderich by year
Year
Wettest five days (Rx5day)
1866
74.2 mm (2.9 in)
1867
51.3 mm (2.0 in)
1868
76.8 mm (3.0 in)
1869
90.4 mm (3.6 in)
1870
86.0 mm (3.4 in)
1871
44.5 mm (1.8 in)
1872
68.0 mm (2.7 in)
1873
62.5 mm (2.5 in)
1874
42.9 mm (1.7 in)
1875
54.6 mm (2.1 in)
1876
89.1 mm (3.5 in)
1877
64.0 mm (2.5 in)
1878
70.9 mm (2.8 in)
1879
90.2 mm (3.6 in)
1880
64.2 mm (2.5 in)
1881
41.4 mm (1.6 in)
1882
46.8 mm (1.8 in)
1883
80.0 mm (3.1 in)
1884
54.8 mm (2.2 in)
1885
76.2 mm (3.0 in)
1886
54.4 mm (2.1 in)
1887
94.5 mm (3.7 in)
1929
66.7 mm (2.6 in)
1930
71.9 mm (2.8 in)
1931
66.5 mm (2.6 in)
1932
68.0 mm (2.7 in)
1933
62.5 mm (2.5 in)
1934
41.6 mm (1.6 in)
1935
78.2 mm (3.1 in)
1936
86.8 mm (3.4 in)
1937
80.8 mm (3.2 in)
1938
83.3 mm (3.3 in)
1939
45.2 mm (1.8 in)
1940
68.7 mm (2.7 in)
1941
66.3 mm (2.6 in)
1942
53.3 mm (2.1 in)
1943
76.2 mm (3.0 in)
1944
75.9 mm (3.0 in)
1945
100.9 mm (4.0 in)
1946
55.3 mm (2.2 in)
1947
80.0 mm (3.1 in)
1948
64.0 mm (2.5 in)
1949
76.2 mm (3.0 in)
1950
82.3 mm (3.2 in)
Longest dry spell (CDD)
The longest dry spell of the year at Goderich, 1866 to 1950. The record is 42 days in 1868, marked on the chart; the median year is 17 days.
Longest dry spell (CDD) at Goderich by year
Year
Longest dry spell (CDD)
1866
8 days
1867
16 days
1868
42 days
1869
12 days
1870
14 days
1871
13 days
1872
19 days
1873
13 days
1874
19 days
1875
12 days
1876
16 days
1877
26 days
1878
13 days
1879
14 days
1880
10 days
1881
26 days
1882
16 days
1883
12 days
1884
16 days
1885
14 days
1886
18 days
1887
24 days
1929
13 days
1930
18 days
1931
31 days
1932
16 days
1933
18 days
1934
14 days
1935
15 days
1936
27 days
1937
20 days
1938
11 days
1939
19 days
1940
20 days
1941
40 days
1942
17 days
1943
27 days
1944
27 days
1945
17 days
1946
18 days
1947
18 days
1948
23 days
1949
19 days
1950
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
36 years with a frost
Across 36 years with a frost, the median last spring frost at Goderich falls on 3 May and the median first autumn frost on 15 October, which leaves a median of 164 days between them.
Fitted over all years, the growing season changes by +0.8 days per decade at this station.
Frost dates and growing season at Goderich
Measure
Median, all years
Earliest period
Recent period (1873 to 1950)
Recent against earliest
Fitted trend
Last spring frost
3 May
n/a
3 May
n/a
-0.5 days per decade
First autumn frost
15 October
n/a
15 October
n/a
+0.3 days per decade
Growing days
164 days
n/a
165 days
n/a
+0.8 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.
Rainfall Return Levels
36 years, 1867 to 1950
A day with at least 50.4 mm (2.0 in) of rain is expected about once in 2 years. A day with at least 92.3 mm (3.6 in) of rain is expected about once in 100 years.
Rainfall return levels at Goderich: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
50.4 mm (2.0 in)
5 years
63.9 mm (2.5 in)
10 years
71.8 mm (2.8 in)
25 years
80.8 mm (3.2 in)
50 years
86.9 mm (3.4 in)
Longer than the 36 years of record
100 years
92.3 mm (3.6 in)
Longer than the 36 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, 36 years of values from 1867 to 1950.
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: 90.2 mm (3.6 in) in 1945; 79.2 mm (3.1 in) in 1869; 76.2 mm (3.0 in) in 1887.
Download the Data
Data for Goderich standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Goderich 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.