Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Indian Head Cda. 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 Indian Head Cda, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
8.9 C (48.0 F)
-45.6 C (-50.1 F)
n/a
n/a
Feb
13.9 C (57.0 F)
-46.7 C (-52.1 F)
n/a
n/a
Mar
24.4 C (75.9 F)
-44.4 C (-47.9 F)
n/a
n/a
Apr
33.3 C (91.9 F)
-30.6 C (-23.1 F)
n/a
n/a
May
38.0 C (100.4 F)
-15.0 C (5.0 F)
n/a
n/a
Jun
40.6 C (105.1 F)
-4.4 C (24.1 F)
n/a
n/a
Jul
42.8 C (109.0 F)
-0.6 C (30.9 F)
n/a
n/a
Aug
39.4 C (102.9 F)
-2.8 C (27.0 F)
n/a
n/a
Sep
36.7 C (98.1 F)
-13.3 C (8.1 F)
n/a
n/a
Oct
31.7 C (89.1 F)
-30.0 C (-22.0 F)
n/a
n/a
Nov
22.8 C (73.0 F)
-38.9 C (-38.0 F)
n/a
n/a
Dec
14.4 C (57.9 F)
-41.5 C (-42.7 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Indian Head Cda still stand. 1936 holds the most, with 40.
Standing records at Indian Head Cda by the year they were set
Year set
Standing records
1889
11
1890
19
1891
20
1892
22
1893
31
1894
13
1895
16
1896
25
1897
27
1898
23
1899
21
1900
18
1901
17
1902
7
1903
14
1904
17
1905
11
1906
10
1907
17
1908
10
1909
16
1910
31
1911
19
1912
13
1913
10
1914
15
1915
15
1916
13
1917
24
1918
24
1919
25
1920
9
1921
11
1922
8
1923
7
1924
16
1925
18
1926
12
1927
9
1928
11
1929
15
1930
17
1931
29
1932
16
1933
5
1934
26
1935
23
1936
40
1937
18
1938
11
1939
32
1940
24
1941
10
1942
15
1943
18
1944
11
1945
18
1946
10
1947
9
1948
9
1949
18
1950
13
1951
20
1952
11
1953
10
1954
23
1955
4
1956
9
1957
8
1958
12
1959
10
1960
8
1961
19
1962
16
1963
21
1964
13
1965
8
1966
13
1967
11
1968
16
1969
14
1970
10
1971
5
1972
12
1973
16
1974
15
1975
11
1976
7
1977
22
1978
6
1979
12
1980
19
1981
20
1982
7
1983
14
All-Time Record Progression
2 new records
2 all-time records were set at Indian Head Cda between 5 July 1937 and 5 July 1937. Each dot is a new record.
When Indian Head Cda set new all-time records
Date
Kind
Detail
1937-07-05
Record high maximum temperature
Record high maximum temperature 42.8 C (109.0 F)
1937-07-05
Record high minimum temperature
Record high minimum temperature 22.8 C (73.0 F)
Wettest Day of Each Month
Jun: 167.6 mm (6.6 in)
The wettest day on record for each calendar month at Indian Head Cda. The most was 167.6 mm (6.6 in) on 15 June 1897.
Record daily precipitation for each month at Indian Head Cda
Month
Record daily precipitation (mm)
Date
Jan
20.3 mm (0.8 in)
7 January 1901
Feb
20.3 mm (0.8 in)
4 February 1921
Mar
35.6 mm (1.4 in)
16 March 1920
Apr
51.1 mm (2.0 in)
28 April 1970
May
57.9 mm (2.3 in)
19 May 1910
Jun
167.6 mm (6.6 in)
15 June 1897
Jul
108.2 mm (4.3 in)
22 July 1920
Aug
71.1 mm (2.8 in)
22 August 1898
Sep
71.9 mm (2.8 in)
3 September 1898
Oct
41.1 mm (1.6 in)
3 October 1911
Nov
30.5 mm (1.2 in)
18 November 1922
Dec
27.9 mm (1.1 in)
27 December 1902
Period of Record Coverage
1889 to 1983
Complete yearUnder 90 percent of days
95 years of record at Indian Head Cda, 1889 to 1983. 2 years have data for under 90 percent of days and are left out of rankings: 1889, 1890.
Cooler than the station meanWarmer than the station mean
One stripe for each of 92 complete years at Indian Head Cda, 1891 to 1983. Blue stripes are years cooler than the station's own mean of 1.7 C (35.1 F); red stripes are warmer. The coolest year was 1893, at -0.9 C (30.3 F), and the warmest was 1931, at 5.1 C (41.2 F). The strongest colour marks a difference of 3.5 C (6.3 F).
Annual mean temperature at Indian Head Cda as warming stripes, 1891 to 1983
Year
Annual mean temperature
Difference from the station mean
1891
1.1 C
-0.57 C
1892
0.3 C
-1.42 C
1893
-0.9 C
-2.66 C
1894
1.7 C
+0.01 C
1895
0.5 C
-1.26 C
1896
0.2 C
-1.48 C
1897
0.7 C
-1.06 C
1898
0.7 C
-0.97 C
1899
-0.3 C
-2.01 C
1900
1.9 C
+0.20 C
1901
1.7 C
+0.00 C
1902
1.2 C
-0.50 C
1903
1.2 C
-0.55 C
1904
0.4 C
-1.34 C
1905
2.3 C
+0.60 C
1906
2.4 C
+0.70 C
1907
-0.1 C
-1.84 C
1909
0.7 C
-1.06 C
1910
2.6 C
+0.90 C
1911
0.1 C
-1.62 C
1912
1.0 C
-0.70 C
1913
1.2 C
-0.48 C
1914
2.0 C
+0.27 C
1915
2.5 C
+0.79 C
1916
-0.6 C
-2.27 C
1917
-0.5 C
-2.17 C
1918
1.7 C
-0.03 C
1919
1.1 C
-0.57 C
1920
1.7 C
-0.06 C
1921
2.5 C
+0.79 C
1922
1.5 C
-0.18 C
1923
1.9 C
+0.16 C
1924
1.2 C
-0.54 C
1925
2.0 C
+0.25 C
1926
2.0 C
+0.31 C
1927
0.2 C
-1.49 C
1928
2.6 C
+0.93 C
1929
0.6 C
-1.07 C
1930
2.4 C
+0.68 C
1931
5.1 C
+3.41 C
1932
1.6 C
-0.11 C
1933
1.3 C
-0.39 C
1934
3.5 C
+1.78 C
1935
1.2 C
-0.49 C
1936
1.1 C
-0.61 C
1937
1.9 C
+0.20 C
1938
3.3 C
+1.57 C
1939
2.8 C
+1.06 C
1940
2.8 C
+1.07 C
1941
3.0 C
+1.31 C
1942
2.4 C
+0.69 C
1943
2.2 C
+0.44 C
1944
2.8 C
+1.10 C
1945
1.2 C
-0.53 C
1946
2.2 C
+0.46 C
1947
1.4 C
-0.27 C
1948
1.6 C
-0.12 C
1949
1.8 C
+0.08 C
1950
-0.7 C
-2.38 C
1951
-0.6 C
-2.35 C
1952
2.6 C
+0.92 C
1953
3.2 C
+1.48 C
1954
2.2 C
+0.52 C
1955
0.7 C
-1.00 C
1956
1.2 C
-0.53 C
1957
1.9 C
+0.14 C
1958
2.8 C
+1.05 C
1959
2.2 C
+0.50 C
1960
2.3 C
+0.56 C
1961
3.2 C
+1.49 C
1962
2.7 C
+0.94 C
1963
3.4 C
+1.73 C
1964
2.2 C
+0.52 C
1965
0.8 C
-0.91 C
1966
1.0 C
-0.68 C
1967
2.1 C
+0.37 C
1968
2.7 C
+1.01 C
1969
1.9 C
+0.16 C
1970
1.3 C
-0.39 C
1971
2.0 C
+0.30 C
1972
0.9 C
-0.81 C
1973
3.0 C
+1.31 C
1974
1.9 C
+0.20 C
1975
2.0 C
+0.28 C
1976
2.9 C
+1.23 C
1977
3.2 C
+1.53 C
1978
1.5 C
-0.23 C
1979
1.0 C
-0.70 C
1980
3.0 C
+1.26 C
1981
4.5 C
+2.77 C
1982
1.0 C
-0.75 C
1983
2.4 C
+0.67 C
The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1891 to 1983. In Fahrenheit: 0.3 F (0.2 to 0.5) per decade. The slope is a straight line fitted to 92 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Indian Head Cda
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.2 C (0.1 to 0.3) per decade
0.3 F (0.2 to 0.5) per decade
1891 to 1983
92
Rise
Mean daily maximum
0.07 C (-0.02 to 0.16) per decade
0.12 F (-0.05 to 0.28) per decade
1891 to 1983
92
Not clearly different from zero
Mean daily minimum
0.3 C (0.2 to 0.4) per decade
0.5 F (0.4 to 0.6) per decade
1891 to 1983
92
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
1885 to 1983
Yearly extremes at Indian Head Cda: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
42.8 C (109.0 F)
1937
35.6 C (96.1 F)
95
Coldest night (TNn)
-46.7 C (-52.1 F)
1893
-38.9 C (-38.0 F)
95
Wettest day (Rx1day)
167.6 mm (6.6 in)
1897
38.1 mm (1.5 in)
98
Wettest five days (Rx5day)
269.2 mm (10.6 in)
1897
57.1 mm (2.2 in)
98
Longest dry spell (CDD)
74 days
1887
29 days
98
Hottest day (TXx)
The hottest day of the year at Indian Head Cda, 1885 to 1983. The record is 42.8 C (109.0 F) in 1937, marked on the chart; the median year is 35.6 C (96.1 F).
Hottest day (TXx) at Indian Head Cda by year
Year
Hottest day (TXx)
1885
n/a
1886
n/a
1887
n/a
1889
31.1 C (88.0 F)
1890
35.0 C (95.0 F)
1891
31.7 C (89.1 F)
1892
36.7 C (98.1 F)
1893
39.4 C (102.9 F)
1894
37.8 C (100.0 F)
1895
35.0 C (95.0 F)
1896
35.0 C (95.0 F)
1897
33.3 C (91.9 F)
1898
37.2 C (99.0 F)
1899
35.0 C (95.0 F)
1900
40.6 C (105.1 F)
1901
35.0 C (95.0 F)
1902
32.2 C (90.0 F)
1903
33.3 C (91.9 F)
1904
33.3 C (91.9 F)
1905
31.1 C (88.0 F)
1906
37.2 C (99.0 F)
1907
30.0 C (86.0 F)
1908
35.0 C (95.0 F)
1909
32.8 C (91.0 F)
1910
36.1 C (97.0 F)
1911
33.3 C (91.9 F)
1912
36.1 C (97.0 F)
1913
32.2 C (90.0 F)
1914
37.8 C (100.0 F)
1915
35.0 C (95.0 F)
1916
32.2 C (90.0 F)
1917
40.0 C (104.0 F)
1918
36.7 C (98.1 F)
1919
35.6 C (96.1 F)
1920
37.8 C (100.0 F)
1921
34.4 C (93.9 F)
1922
33.3 C (91.9 F)
1923
33.3 C (91.9 F)
1924
32.8 C (91.0 F)
1925
37.2 C (99.0 F)
1926
37.2 C (99.0 F)
1927
31.1 C (88.0 F)
1928
34.4 C (93.9 F)
1929
36.7 C (98.1 F)
1930
38.9 C (102.0 F)
1931
40.6 C (105.1 F)
1932
38.3 C (100.9 F)
1933
36.7 C (98.1 F)
1934
36.7 C (98.1 F)
1935
34.4 C (93.9 F)
1936
40.0 C (104.0 F)
1937
42.8 C (109.0 F)
1938
35.0 C (95.0 F)
1939
36.7 C (98.1 F)
1940
38.3 C (100.9 F)
1941
39.4 C (102.9 F)
1942
32.2 C (90.0 F)
1943
35.0 C (95.0 F)
1944
36.1 C (97.0 F)
1945
37.8 C (100.0 F)
1946
37.8 C (100.0 F)
1947
36.1 C (97.0 F)
1948
34.4 C (93.9 F)
1949
38.3 C (100.9 F)
1950
35.0 C (95.0 F)
1951
37.2 C (99.0 F)
1952
37.8 C (100.0 F)
1953
31.1 C (88.0 F)
1954
31.1 C (88.0 F)
1955
33.9 C (93.0 F)
1956
35.6 C (96.1 F)
1957
36.1 C (97.0 F)
1958
36.7 C (98.1 F)
1959
36.7 C (98.1 F)
1960
37.2 C (99.0 F)
1961
37.8 C (100.0 F)
1962
33.3 C (91.9 F)
1963
35.0 C (95.0 F)
1964
33.3 C (91.9 F)
1965
35.6 C (96.1 F)
1966
35.0 C (95.0 F)
1967
35.6 C (96.1 F)
1968
34.4 C (93.9 F)
1969
36.1 C (97.0 F)
1970
33.9 C (93.0 F)
1971
35.0 C (95.0 F)
1972
38.3 C (100.9 F)
1973
32.8 C (91.0 F)
1974
35.0 C (95.0 F)
1975
37.8 C (100.0 F)
1976
36.7 C (98.1 F)
1977
31.7 C (89.1 F)
1978
34.0 C (93.2 F)
1979
36.5 C (97.7 F)
1980
38.0 C (100.4 F)
1981
35.0 C (95.0 F)
1982
32.0 C (89.6 F)
1983
36.5 C (97.7 F)
Coldest night (TNn)
The coldest night of the year at Indian Head Cda, 1885 to 1983. The record is -46.7 C (-52.1 F) in 1893, marked on the chart; the median year is -38.9 C (-38.0 F).
Coldest night (TNn) at Indian Head Cda by year
Year
Coldest night (TNn)
1885
n/a
1886
n/a
1887
n/a
1889
-34.4 C (-29.9 F)
1890
-40.6 C (-41.1 F)
1891
-40.6 C (-41.1 F)
1892
-42.2 C (-44.0 F)
1893
-46.7 C (-52.1 F)
1894
-38.3 C (-36.9 F)
1895
-38.9 C (-38.0 F)
1896
-38.9 C (-38.0 F)
1897
-44.4 C (-47.9 F)
1898
-35.6 C (-32.1 F)
1899
-41.7 C (-43.1 F)
1900
-38.3 C (-36.9 F)
1901
-38.3 C (-36.9 F)
1902
-37.2 C (-35.0 F)
1903
-41.1 C (-42.0 F)
1904
-43.9 C (-47.0 F)
1905
-41.7 C (-43.1 F)
1906
-38.9 C (-38.0 F)
1907
-41.1 C (-42.0 F)
1908
-35.6 C (-32.1 F)
1909
-43.9 C (-47.0 F)
1910
-40.0 C (-40.0 F)
1911
-40.6 C (-41.1 F)
1912
-43.9 C (-47.0 F)
1913
-42.8 C (-45.0 F)
1914
-38.9 C (-38.0 F)
1915
-41.1 C (-42.0 F)
1916
-45.6 C (-50.1 F)
1917
-45.6 C (-50.1 F)
1918
-40.0 C (-40.0 F)
1919
-44.4 C (-47.9 F)
1920
-41.1 C (-42.0 F)
1921
-36.1 C (-33.0 F)
1922
-38.9 C (-38.0 F)
1923
-37.8 C (-36.0 F)
1924
-38.3 C (-36.9 F)
1925
-37.2 C (-35.0 F)
1926
-36.1 C (-33.0 F)
1927
-42.2 C (-44.0 F)
1928
-35.6 C (-32.1 F)
1929
-40.6 C (-41.1 F)
1930
-41.7 C (-43.1 F)
1931
-28.9 C (-20.0 F)
1932
-36.1 C (-33.0 F)
1933
-40.6 C (-41.1 F)
1934
-38.3 C (-36.9 F)
1935
-42.8 C (-45.0 F)
1936
-42.2 C (-44.0 F)
1937
-39.4 C (-38.9 F)
1938
-39.4 C (-38.9 F)
1939
-40.0 C (-40.0 F)
1940
-36.1 C (-33.0 F)
1941
-38.3 C (-36.9 F)
1942
-35.6 C (-32.1 F)
1943
-43.9 C (-47.0 F)
1944
-36.1 C (-33.0 F)
1945
-34.4 C (-29.9 F)
1946
-37.2 C (-35.0 F)
1947
-42.2 C (-44.0 F)
1948
-36.7 C (-34.1 F)
1949
-41.1 C (-42.0 F)
1950
-43.3 C (-45.9 F)
1951
-39.4 C (-38.9 F)
1952
-40.0 C (-40.0 F)
1953
-38.3 C (-36.9 F)
1954
-42.2 C (-44.0 F)
1955
-35.0 C (-31.0 F)
1956
-36.7 C (-34.1 F)
1957
-34.4 C (-29.9 F)
1958
-36.1 C (-33.0 F)
1959
-34.4 C (-29.9 F)
1960
-35.6 C (-32.1 F)
1961
-37.8 C (-36.0 F)
1962
-40.6 C (-41.1 F)
1963
-35.6 C (-32.1 F)
1964
-35.0 C (-31.0 F)
1965
-36.1 C (-33.0 F)
1966
-41.7 C (-43.1 F)
1967
-37.8 C (-36.0 F)
1968
-37.8 C (-36.0 F)
1969
-40.6 C (-41.1 F)
1970
-37.8 C (-36.0 F)
1971
-36.7 C (-34.1 F)
1972
-40.0 C (-40.0 F)
1973
-37.2 C (-35.0 F)
1974
-38.3 C (-36.9 F)
1975
-35.6 C (-32.1 F)
1976
-35.6 C (-32.1 F)
1977
-38.0 C (-36.4 F)
1978
-38.5 C (-37.3 F)
1979
-38.5 C (-37.3 F)
1980
-37.0 C (-34.6 F)
1981
-37.0 C (-34.6 F)
1982
-39.0 C (-38.2 F)
1983
-41.5 C (-42.7 F)
Wettest day (Rx1day)
The wettest day of the year at Indian Head Cda, 1885 to 1983. The record is 167.6 mm (6.6 in) in 1897, marked on the chart; the median year is 38.1 mm (1.5 in).
Wettest day (Rx1day) at Indian Head Cda by year
Year
Wettest day (Rx1day)
1885
12.7 mm (0.5 in)
1886
25.4 mm (1.0 in)
1887
12.7 mm (0.5 in)
1889
15.2 mm (0.6 in)
1890
63.5 mm (2.5 in)
1891
38.1 mm (1.5 in)
1892
52.3 mm (2.1 in)
1893
50.8 mm (2.0 in)
1894
10.9 mm (0.4 in)
1895
50.8 mm (2.0 in)
1896
40.6 mm (1.6 in)
1897
167.6 mm (6.6 in)
1898
71.9 mm (2.8 in)
1899
38.1 mm (1.5 in)
1900
35.6 mm (1.4 in)
1901
67.8 mm (2.7 in)
1902
41.9 mm (1.6 in)
1903
38.1 mm (1.5 in)
1904
31.0 mm (1.2 in)
1905
54.9 mm (2.2 in)
1906
50.8 mm (2.0 in)
1907
47.5 mm (1.9 in)
1908
27.4 mm (1.1 in)
1909
62.0 mm (2.4 in)
1910
57.9 mm (2.3 in)
1911
41.1 mm (1.6 in)
1912
35.3 mm (1.4 in)
1913
59.7 mm (2.4 in)
1914
27.7 mm (1.1 in)
1915
28.7 mm (1.1 in)
1916
55.4 mm (2.2 in)
1917
15.2 mm (0.6 in)
1918
23.4 mm (0.9 in)
1919
35.6 mm (1.4 in)
1920
108.2 mm (4.3 in)
1921
44.7 mm (1.8 in)
1922
30.5 mm (1.2 in)
1923
55.9 mm (2.2 in)
1924
26.7 mm (1.1 in)
1925
32.5 mm (1.3 in)
1926
31.5 mm (1.2 in)
1927
45.0 mm (1.8 in)
1928
36.1 mm (1.4 in)
1929
35.6 mm (1.4 in)
1930
19.1 mm (0.8 in)
1931
18.0 mm (0.7 in)
1932
39.4 mm (1.6 in)
1933
37.6 mm (1.5 in)
1934
24.4 mm (1.0 in)
1935
56.1 mm (2.2 in)
1936
53.8 mm (2.1 in)
1937
34.3 mm (1.4 in)
1938
19.3 mm (0.8 in)
1939
18.8 mm (0.7 in)
1940
41.1 mm (1.6 in)
1941
31.5 mm (1.2 in)
1942
38.4 mm (1.5 in)
1943
41.9 mm (1.6 in)
1944
33.0 mm (1.3 in)
1945
16.0 mm (0.6 in)
1946
39.4 mm (1.6 in)
1947
58.4 mm (2.3 in)
1948
23.4 mm (0.9 in)
1949
44.7 mm (1.8 in)
1950
30.5 mm (1.2 in)
1951
26.9 mm (1.1 in)
1952
54.9 mm (2.2 in)
1953
44.7 mm (1.8 in)
1954
54.6 mm (2.1 in)
1955
30.2 mm (1.2 in)
1956
29.2 mm (1.1 in)
1957
30.5 mm (1.2 in)
1958
38.9 mm (1.5 in)
1959
76.2 mm (3.0 in)
1960
21.8 mm (0.9 in)
1961
28.2 mm (1.1 in)
1962
27.9 mm (1.1 in)
1963
40.6 mm (1.6 in)
1964
27.4 mm (1.1 in)
1965
31.0 mm (1.2 in)
1966
39.1 mm (1.5 in)
1967
31.0 mm (1.2 in)
1968
34.3 mm (1.4 in)
1969
28.2 mm (1.1 in)
1970
51.1 mm (2.0 in)
1971
40.9 mm (1.6 in)
1972
31.8 mm (1.3 in)
1973
58.4 mm (2.3 in)
1974
48.5 mm (1.9 in)
1975
37.3 mm (1.5 in)
1976
54.4 mm (2.1 in)
1977
37.1 mm (1.5 in)
1978
37.0 mm (1.5 in)
1979
56.4 mm (2.2 in)
1980
54.0 mm (2.1 in)
1981
89.2 mm (3.5 in)
1982
102.0 mm (4.0 in)
1983
53.6 mm (2.1 in)
Wettest five days (Rx5day)
The wettest five days of the year at Indian Head Cda, 1885 to 1983. The record is 269.2 mm (10.6 in) in 1897, marked on the chart; the median year is 57.1 mm (2.2 in).
Wettest five days (Rx5day) at Indian Head Cda by year
Year
Wettest five days (Rx5day)
1885
29.2 mm (1.1 in)
1886
25.9 mm (1.0 in)
1887
12.7 mm (0.5 in)
1889
15.2 mm (0.6 in)
1890
63.5 mm (2.5 in)
1891
69.6 mm (2.7 in)
1892
63.2 mm (2.5 in)
1893
50.8 mm (2.0 in)
1894
10.9 mm (0.4 in)
1895
76.7 mm (3.0 in)
1896
47.5 mm (1.9 in)
1897
269.2 mm (10.6 in)
1898
94.3 mm (3.7 in)
1899
53.4 mm (2.1 in)
1900
54.7 mm (2.2 in)
1901
79.4 mm (3.1 in)
1902
80.8 mm (3.2 in)
1903
68.1 mm (2.7 in)
1904
61.5 mm (2.4 in)
1905
76.2 mm (3.0 in)
1906
56.4 mm (2.2 in)
1907
63.8 mm (2.5 in)
1908
65.3 mm (2.6 in)
1909
72.4 mm (2.9 in)
1910
90.4 mm (3.6 in)
1911
63.5 mm (2.5 in)
1912
60.0 mm (2.4 in)
1913
78.5 mm (3.1 in)
1914
33.5 mm (1.3 in)
1915
34.5 mm (1.4 in)
1916
67.6 mm (2.7 in)
1917
32.2 mm (1.3 in)
1918
39.7 mm (1.6 in)
1919
58.5 mm (2.3 in)
1920
126.0 mm (5.0 in)
1921
73.9 mm (2.9 in)
1922
36.8 mm (1.4 in)
1923
104.5 mm (4.1 in)
1924
39.6 mm (1.6 in)
1925
33.3 mm (1.3 in)
1926
33.0 mm (1.3 in)
1927
72.1 mm (2.8 in)
1928
45.5 mm (1.8 in)
1929
40.7 mm (1.6 in)
1930
34.1 mm (1.3 in)
1931
22.1 mm (0.9 in)
1932
41.4 mm (1.6 in)
1933
79.3 mm (3.1 in)
1934
34.3 mm (1.4 in)
1935
69.3 mm (2.7 in)
1936
54.6 mm (2.1 in)
1937
34.8 mm (1.4 in)
1938
31.5 mm (1.2 in)
1939
45.1 mm (1.8 in)
1940
72.9 mm (2.9 in)
1941
44.5 mm (1.8 in)
1942
53.8 mm (2.1 in)
1943
55.6 mm (2.2 in)
1944
84.6 mm (3.3 in)
1945
35.6 mm (1.4 in)
1946
61.6 mm (2.4 in)
1947
88.9 mm (3.5 in)
1948
53.2 mm (2.1 in)
1949
59.0 mm (2.3 in)
1950
32.8 mm (1.3 in)
1951
40.8 mm (1.6 in)
1952
82.0 mm (3.2 in)
1953
78.0 mm (3.1 in)
1954
78.2 mm (3.1 in)
1955
49.8 mm (2.0 in)
1956
57.1 mm (2.2 in)
1957
38.4 mm (1.5 in)
1958
44.2 mm (1.7 in)
1959
88.3 mm (3.5 in)
1960
45.4 mm (1.8 in)
1961
32.3 mm (1.3 in)
1962
43.0 mm (1.7 in)
1963
57.9 mm (2.3 in)
1964
43.9 mm (1.7 in)
1965
61.7 mm (2.4 in)
1966
67.0 mm (2.6 in)
1967
45.5 mm (1.8 in)
1968
63.0 mm (2.5 in)
1969
41.1 mm (1.6 in)
1970
60.0 mm (2.4 in)
1971
52.8 mm (2.1 in)
1972
34.1 mm (1.3 in)
1973
81.8 mm (3.2 in)
1974
71.9 mm (2.8 in)
1975
67.3 mm (2.6 in)
1976
103.0 mm (4.1 in)
1977
52.6 mm (2.1 in)
1978
38.4 mm (1.5 in)
1979
57.0 mm (2.2 in)
1980
72.4 mm (2.9 in)
1981
96.0 mm (3.8 in)
1982
106.0 mm (4.2 in)
1983
62.2 mm (2.4 in)
Longest dry spell (CDD)
The longest dry spell of the year at Indian Head Cda, 1885 to 1983. The record is 74 days in 1887, marked on the chart; the median year is 29 days.
Longest dry spell (CDD) at Indian Head Cda by year
Year
Longest dry spell (CDD)
1885
40 days
1886
34 days
1887
74 days
1889
51 days
1890
18 days
1891
39 days
1892
31 days
1893
29 days
1894
29 days
1895
74 days
1896
53 days
1897
33 days
1898
38 days
1899
33 days
1900
25 days
1901
60 days
1902
43 days
1903
29 days
1904
51 days
1905
32 days
1906
28 days
1907
27 days
1908
28 days
1909
30 days
1910
29 days
1911
31 days
1912
32 days
1913
34 days
1914
34 days
1915
32 days
1916
28 days
1917
32 days
1918
42 days
1919
18 days
1920
18 days
1921
22 days
1922
17 days
1923
26 days
1924
30 days
1925
29 days
1926
19 days
1927
23 days
1928
27 days
1929
27 days
1930
28 days
1931
44 days
1932
24 days
1933
26 days
1934
54 days
1935
24 days
1936
35 days
1937
26 days
1938
24 days
1939
20 days
1940
30 days
1941
20 days
1942
29 days
1943
34 days
1944
29 days
1945
35 days
1946
18 days
1947
21 days
1948
31 days
1949
21 days
1950
17 days
1951
19 days
1952
30 days
1953
26 days
1954
45 days
1955
25 days
1956
20 days
1957
19 days
1958
37 days
1959
20 days
1960
29 days
1961
32 days
1962
26 days
1963
40 days
1964
41 days
1965
52 days
1966
32 days
1967
24 days
1968
30 days
1969
24 days
1970
14 days
1971
27 days
1972
20 days
1973
31 days
1974
24 days
1975
25 days
1976
48 days
1977
32 days
1978
46 days
1979
23 days
1980
44 days
1981
41 days
1982
33 days
1983
23 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
92 years with a frost
Across 92 years with a frost, the median last spring frost at Indian Head Cda falls on 29 May and the median first autumn frost on 11 September, which leaves a median of 102 days between them.
In 1954 to 1983 the median growing season was 109 days. That is 8 days more than in 1891 to 1921.
Fitted over all years, the growing season changes by +1.5 days per decade at this station.
Frost dates and growing season at Indian Head Cda
Measure
Median, all years
Earliest period (1891 to 1921)
Recent period (1954 to 1983)
Recent against earliest
Fitted trend
Last spring frost
29 May
29 May
25 May
4 days earlier
-0.6 days per decade
First autumn frost
11 September
11 September
12 September
1 day later
+1.0 days per decade
Growing days
102 days
101 days
109 days
8 days more
+1.5 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
84 years, 1891 to 1983
A day with at least 38.3 mm (1.5 in) of rain is expected about once in 2 years. A day with at least 99.9 mm (3.9 in) of rain is expected about once in 100 years.
Rainfall return levels at Indian Head Cda: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
38.3 mm (1.5 in)
5 years
53.2 mm (2.1 in)
10 years
63.7 mm (2.5 in)
25 years
77.7 mm (3.1 in)
50 years
88.6 mm (3.5 in)
100 years
99.9 mm (3.9 in)
Longer than the 84 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, 84 years of values from 1891 to 1983.
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: 108.2 mm (4.3 in) in 1920; 102.0 mm (4.0 in) in 1982; 89.2 mm (3.5 in) in 1981.
Station Changes
3 suspected
3 changes were suspected in the annual mean temperature of Indian Head Cda, at 1924, 1959 and 1978. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1924 ran 0.3 C (0.5 F) higher than in the years before (possible change).
Relative to 5 neighbouring stations, the station's annual mean temperature from 1959 ran 0.2 C (0.4 F) higher than in the years before (likely change).
Relative to 5 neighbouring stations, the station's annual mean temperature from 1978 ran 0.2 C (0.3 F) lower than in the years before (possible change).
Suspected changes in the annual mean temperature at Indian Head Cda, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1924
+0.3
+0.5
possible
5
1959
+0.2
+0.4
likely
5
1978
-0.2
-0.3
possible
5
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
Download the Data
Data for Indian Head Cda standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Indian Head Cda 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.