Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Fort Macleod. 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 Fort Macleod, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
19.4 C (66.9 F)
-45.0 C (-49.0 F)
n/a
n/a
Feb
20.0 C (68.0 F)
-45.0 C (-49.0 F)
n/a
n/a
Mar
27.8 C (82.0 F)
-36.7 C (-34.1 F)
n/a
n/a
Apr
32.2 C (90.0 F)
-23.3 C (-9.9 F)
n/a
n/a
May
33.9 C (93.0 F)
-15.0 C (5.0 F)
n/a
n/a
Jun
38.3 C (100.9 F)
-10.0 C (14.0 F)
n/a
n/a
Jul
42.8 C (109.0 F)
0.6 C (33.1 F)
n/a
n/a
Aug
37.2 C (99.0 F)
-2.2 C (28.0 F)
n/a
n/a
Sep
36.7 C (98.1 F)
-17.8 C (0.0 F)
n/a
n/a
Oct
30.0 C (86.0 F)
-23.3 C (-9.9 F)
n/a
n/a
Nov
26.1 C (79.0 F)
-38.9 C (-38.0 F)
n/a
n/a
Dec
25.0 C (77.0 F)
-45.0 C (-49.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Fort Macleod still stand. 1936 holds the most, with 53.
Standing records at Fort Macleod by the year they were set
Year set
Standing records
1876
20
1877
6
1878
1
1879
11
1885
2
1895
16
1896
47
1897
14
1898
12
1899
18
1900
16
1901
8
1902
16
1903
13
1904
25
1905
27
1906
34
1907
22
1908
7
1909
19
1910
27
1911
23
1912
9
1913
16
1914
17
1915
6
1916
15
1917
19
1918
24
1919
37
1920
13
1921
5
1922
19
1923
16
1924
19
1925
22
1926
21
1927
11
1928
22
1929
22
1930
20
1931
20
1932
18
1933
18
1934
29
1935
18
1936
53
1937
8
1938
7
1939
31
1940
15
1941
8
1942
9
1943
22
1944
16
1945
9
1946
6
1947
8
1948
12
1949
24
1950
13
1951
22
1952
14
1953
7
1954
27
1955
20
1956
16
1957
13
1958
8
1959
13
1960
5
1961
12
1962
18
1963
9
1964
8
1965
13
1966
10
1967
16
1968
20
1969
13
1970
7
1971
13
1972
8
1973
19
1974
4
1975
7
1976
10
1977
16
1978
3
1979
4
1980
16
1981
13
1982
4
1983
15
All-Time Record Progression
3 new records
3 all-time records were set at Fort Macleod between 17 July 1925 and 3 August 1951. Each dot is a new record.
When Fort Macleod set new all-time records
Date
Kind
Detail
1925-07-17
Record high minimum temperature
Record high minimum temperature 21.1 C (70.0 F)
1943-01-22
Record low maximum temperature
Record low maximum temperature -35.6 C (-32.1 F)
1951-08-03
Record high minimum temperature
Record high minimum temperature 22.2 C (72.0 F)
Wettest Day of Each Month
Aug: 98.0 mm (3.9 in)
The wettest day on record for each calendar month at Fort Macleod. The most was 98.0 mm (3.9 in) on 9 August 1916.
Record daily precipitation for each month at Fort Macleod
Month
Record daily precipitation (mm)
Date
Jan
16.8 mm (0.7 in)
13 January 1949
Feb
20.3 mm (0.8 in)
19 February 1920
Mar
50.8 mm (2.0 in)
25 March 1972
Apr
76.2 mm (3.0 in)
12 April 1922
May
77.7 mm (3.1 in)
1 May 1951
Jun
97.0 mm (3.8 in)
7 June 1946
Jul
80.0 mm (3.1 in)
18 July 1916
Aug
98.0 mm (3.9 in)
9 August 1916
Sep
73.7 mm (2.9 in)
4 September 1916
Oct
45.7 mm (1.8 in)
5 October 1914
Nov
32.5 mm (1.3 in)
18 November 1946
Dec
25.4 mm (1.0 in)
7 December 1936
Period of Record Coverage
1876 to 1983
Complete yearUnder 90 percent of days
94 years of record at Fort Macleod, 1876 to 1983. 10 years have data for under 90 percent of days and are left out of rankings: 1876, 1877, 1879, 1885, 1886, 1895, 1902, 1903 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 82 complete years at Fort Macleod, 1896 to 1983. Blue stripes are years cooler than the station's own mean of 5.5 C (42.0 F); red stripes are warmer. The coolest year was 1916, at 3.2 C (37.7 F), and the warmest was 1934, at 7.8 C (46.1 F). The strongest colour marks a difference of 2.4 C (4.3 F).
Annual mean temperature at Fort Macleod as warming stripes, 1896 to 1983
Year
Annual mean temperature
Difference from the station mean
1896
4.9 C
-0.64 C
1897
5.4 C
-0.10 C
1898
5.7 C
+0.12 C
1899
3.7 C
-1.81 C
1900
6.2 C
+0.61 C
1901
5.8 C
+0.22 C
1904
4.3 C
-1.20 C
1905
5.5 C
-0.03 C
1906
4.6 C
-0.93 C
1907
4.0 C
-1.50 C
1908
5.5 C
-0.09 C
1909
3.8 C
-1.76 C
1910
6.8 C
+1.24 C
1911
3.7 C
-1.87 C
1912
5.8 C
+0.21 C
1913
5.1 C
-0.49 C
1914
4.7 C
-0.83 C
1915
5.6 C
+0.04 C
1916
3.2 C
-2.39 C
1917
4.1 C
-1.44 C
1918
6.5 C
+0.95 C
1919
5.5 C
-0.02 C
1920
5.7 C
+0.13 C
1921
6.1 C
+0.54 C
1922
4.9 C
-0.67 C
1923
6.3 C
+0.75 C
1924
4.9 C
-0.61 C
1925
6.0 C
+0.47 C
1926
6.9 C
+1.37 C
1927
3.9 C
-1.60 C
1928
6.7 C
+1.14 C
1929
4.6 C
-0.93 C
1930
6.5 C
+0.93 C
1931
7.8 C
+2.26 C
1932
5.6 C
+0.01 C
1933
5.7 C
+0.18 C
1934
7.8 C
+2.29 C
1935
5.7 C
+0.13 C
1936
5.3 C
-0.25 C
1937
4.8 C
-0.73 C
1938
6.9 C
+1.32 C
1939
7.3 C
+1.80 C
1940
6.8 C
+1.29 C
1941
7.4 C
+1.81 C
1943
6.3 C
+0.78 C
1944
7.7 C
+2.11 C
1945
5.3 C
-0.21 C
1946
6.1 C
+0.58 C
1947
6.0 C
+0.41 C
1950
4.7 C
-0.89 C
1952
6.3 C
+0.80 C
1953
6.9 C
+1.32 C
1954
5.2 C
-0.38 C
1955
3.4 C
-2.17 C
1956
5.1 C
-0.42 C
1957
5.4 C
-0.19 C
1958
6.3 C
+0.80 C
1959
5.0 C
-0.58 C
1960
5.9 C
+0.36 C
1961
6.5 C
+0.98 C
1962
5.8 C
+0.27 C
1963
6.6 C
+1.07 C
1964
5.1 C
-0.43 C
1965
4.4 C
-1.11 C
1966
4.8 C
-0.79 C
1967
5.8 C
+0.21 C
1968
5.2 C
-0.32 C
1969
4.6 C
-0.98 C
1970
5.2 C
-0.37 C
1971
5.1 C
-0.41 C
1972
4.0 C
-1.57 C
1973
6.2 C
+0.61 C
1974
6.5 C
+0.99 C
1975
4.5 C
-1.06 C
1976
6.9 C
+1.36 C
1977
5.9 C
+0.38 C
1978
4.1 C
-1.44 C
1979
5.3 C
-0.23 C
1980
5.9 C
+0.36 C
1981
7.4 C
+1.81 C
1982
3.9 C
-1.60 C
1983
5.9 C
+0.38 C
The fitted trend in annual mean temperature here over 1896 to 1983 is 0.05 C (-0.05 to 0.14) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.1 to 0.2) per decade. The slope is a straight line fitted to 82 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Fort Macleod
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.05 C (-0.05 to 0.14) per decade
0.1 F (-0.1 to 0.2) per decade
1896 to 1983
82
Not clearly different from zero
Mean daily maximum
0.02 C (-0.07 to 0.12) per decade
0.04 F (-0.13 to 0.22) per decade
1896 to 1983
82
Not clearly different from zero
Mean daily minimum
0.07 C (-0.04 to 0.17) per decade
0.1 F (-0.1 to 0.3) per decade
1896 to 1983
82
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
1876 to 1983
Yearly extremes at Fort Macleod: 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)
1877
35.0 C (95.0 F)
94
Coldest night (TNn)
-45.0 C (-49.0 F)
1905
-35.6 C (-32.1 F)
95
Wettest day (Rx1day)
98.0 mm (3.9 in)
1916
37.5 mm (1.5 in)
94
Wettest five days (Rx5day)
141.7 mm (5.6 in)
1947
61.8 mm (2.4 in)
94
Longest dry spell (CDD)
96 days
1948
34 days
94
Hottest day (TXx)
The hottest day of the year at Fort Macleod, 1876 to 1983. The record is 42.8 C (109.0 F) in 1877, marked on the chart; the median year is 35.0 C (95.0 F).
Hottest day (TXx) at Fort Macleod by year
Year
Hottest day (TXx)
1876
38.3 C (100.9 F)
1877
42.8 C (109.0 F)
1878
n/a
1879
37.2 C (99.0 F)
1885
27.8 C (82.0 F)
1886
20.0 C (68.0 F)
1895
32.2 C (90.0 F)
1896
38.9 C (102.0 F)
1897
35.6 C (96.1 F)
1898
36.7 C (98.1 F)
1899
35.6 C (96.1 F)
1900
36.7 C (98.1 F)
1901
34.4 C (93.9 F)
1902
31.7 C (89.1 F)
1903
30.6 C (87.1 F)
1904
35.6 C (96.1 F)
1905
35.6 C (96.1 F)
1906
36.1 C (97.0 F)
1907
30.6 C (87.1 F)
1908
33.9 C (93.0 F)
1909
32.8 C (91.0 F)
1910
38.9 C (102.0 F)
1911
32.2 C (90.0 F)
1912
37.2 C (99.0 F)
1913
33.3 C (91.9 F)
1914
37.2 C (99.0 F)
1915
33.9 C (93.0 F)
1916
33.3 C (91.9 F)
1917
35.0 C (95.0 F)
1918
37.2 C (99.0 F)
1919
38.9 C (102.0 F)
1920
35.0 C (95.0 F)
1921
37.2 C (99.0 F)
1922
33.9 C (93.0 F)
1923
34.4 C (93.9 F)
1924
35.0 C (95.0 F)
1925
37.2 C (99.0 F)
1926
34.4 C (93.9 F)
1927
31.7 C (89.1 F)
1928
34.4 C (93.9 F)
1929
36.7 C (98.1 F)
1930
37.8 C (100.0 F)
1931
37.2 C (99.0 F)
1932
36.1 C (97.0 F)
1933
37.8 C (100.0 F)
1934
36.7 C (98.1 F)
1935
36.7 C (98.1 F)
1936
38.3 C (100.9 F)
1937
36.7 C (98.1 F)
1938
34.4 C (93.9 F)
1939
37.8 C (100.0 F)
1940
35.6 C (96.1 F)
1941
37.8 C (100.0 F)
1942
33.3 C (91.9 F)
1943
33.3 C (91.9 F)
1944
36.7 C (98.1 F)
1945
33.3 C (91.9 F)
1946
35.6 C (96.1 F)
1947
35.6 C (96.1 F)
1948
33.3 C (91.9 F)
1949
35.6 C (96.1 F)
1950
36.7 C (98.1 F)
1951
34.4 C (93.9 F)
1952
33.3 C (91.9 F)
1953
36.7 C (98.1 F)
1954
34.4 C (93.9 F)
1955
33.3 C (91.9 F)
1956
33.9 C (93.0 F)
1957
33.9 C (93.0 F)
1958
33.3 C (91.9 F)
1959
35.6 C (96.1 F)
1960
37.8 C (100.0 F)
1961
36.1 C (97.0 F)
1962
35.0 C (95.0 F)
1963
32.2 C (90.0 F)
1964
34.4 C (93.9 F)
1965
32.2 C (90.0 F)
1966
32.2 C (90.0 F)
1967
35.0 C (95.0 F)
1968
34.4 C (93.9 F)
1969
33.9 C (93.0 F)
1970
33.9 C (93.0 F)
1971
36.7 C (98.1 F)
1972
32.8 C (91.0 F)
1973
36.7 C (98.1 F)
1974
32.8 C (91.0 F)
1975
35.0 C (95.0 F)
1976
33.3 C (91.9 F)
1977
33.3 C (91.9 F)
1978
32.2 C (90.0 F)
1979
35.0 C (95.0 F)
1980
33.0 C (91.4 F)
1981
35.5 C (95.9 F)
1982
33.0 C (91.4 F)
1983
36.0 C (96.8 F)
Coldest night (TNn)
The coldest night of the year at Fort Macleod, 1876 to 1983. The record is -45.0 C (-49.0 F) in 1905, marked on the chart; the median year is -35.6 C (-32.1 F).
Coldest night (TNn) at Fort Macleod by year
Year
Coldest night (TNn)
1876
-30.6 C (-23.1 F)
1877
-23.9 C (-11.0 F)
1878
-21.7 C (-7.1 F)
1879
-35.6 C (-32.1 F)
1885
-15.0 C (5.0 F)
1886
-23.9 C (-11.0 F)
1895
-30.6 C (-23.1 F)
1896
-37.8 C (-36.0 F)
1897
-40.6 C (-41.1 F)
1898
-34.4 C (-29.9 F)
1899
-37.8 C (-36.0 F)
1900
-35.6 C (-32.1 F)
1901
-34.4 C (-29.9 F)
1902
-34.4 C (-29.9 F)
1903
-38.9 C (-38.0 F)
1904
-33.3 C (-27.9 F)
1905
-45.0 C (-49.0 F)
1906
-36.1 C (-33.0 F)
1907
-43.9 C (-47.0 F)
1908
-28.3 C (-18.9 F)
1909
-42.8 C (-45.0 F)
1910
-38.3 C (-36.9 F)
1911
-42.8 C (-45.0 F)
1912
-36.7 C (-34.1 F)
1913
-34.4 C (-29.9 F)
1914
-37.2 C (-35.0 F)
1915
-31.7 C (-25.1 F)
1916
-42.2 C (-44.0 F)
1917
-43.9 C (-47.0 F)
1918
-40.6 C (-41.1 F)
1919
-37.2 C (-35.0 F)
1920
-35.0 C (-31.0 F)
1921
-34.4 C (-29.9 F)
1922
-43.3 C (-45.9 F)
1923
-40.0 C (-40.0 F)
1924
-45.0 C (-49.0 F)
1925
-33.9 C (-29.0 F)
1926
-30.0 C (-22.0 F)
1927
-39.4 C (-38.9 F)
1928
-36.7 C (-34.1 F)
1929
-45.0 C (-49.0 F)
1930
-38.9 C (-38.0 F)
1931
-26.7 C (-16.1 F)
1932
-33.3 C (-27.9 F)
1933
-32.8 C (-27.0 F)
1934
-32.2 C (-26.0 F)
1935
-37.8 C (-36.0 F)
1936
-40.6 C (-41.1 F)
1937
-37.2 C (-35.0 F)
1938
-36.1 C (-33.0 F)
1939
-41.1 C (-42.0 F)
1940
-30.0 C (-22.0 F)
1941
-28.9 C (-20.0 F)
1942
-35.6 C (-32.1 F)
1943
-40.0 C (-40.0 F)
1944
-27.8 C (-18.0 F)
1945
-31.1 C (-24.0 F)
1946
-28.9 C (-20.0 F)
1947
-35.6 C (-32.1 F)
1948
-28.9 C (-20.0 F)
1949
-37.8 C (-36.0 F)
1950
-40.0 C (-40.0 F)
1951
-36.7 C (-34.1 F)
1952
-33.3 C (-27.9 F)
1953
-26.7 C (-16.1 F)
1954
-42.2 C (-44.0 F)
1955
-34.4 C (-29.9 F)
1956
-35.6 C (-32.1 F)
1957
-41.1 C (-42.0 F)
1958
-30.0 C (-22.0 F)
1959
-33.3 C (-27.9 F)
1960
-33.3 C (-27.9 F)
1961
-31.7 C (-25.1 F)
1962
-33.3 C (-27.9 F)
1963
-34.4 C (-29.9 F)
1964
-36.7 C (-34.1 F)
1965
-33.3 C (-27.9 F)
1966
-34.4 C (-29.9 F)
1967
-31.1 C (-24.0 F)
1968
-42.2 C (-44.0 F)
1969
-40.6 C (-41.1 F)
1970
-37.8 C (-36.0 F)
1971
-40.0 C (-40.0 F)
1972
-41.1 C (-42.0 F)
1973
-31.7 C (-25.1 F)
1974
-34.4 C (-29.9 F)
1975
-33.9 C (-29.0 F)
1976
-33.3 C (-27.9 F)
1977
-38.3 C (-36.9 F)
1978
-31.7 C (-25.1 F)
1979
-36.7 C (-34.1 F)
1980
-35.0 C (-31.0 F)
1981
-30.0 C (-22.0 F)
1982
-35.0 C (-31.0 F)
1983
-42.5 C (-44.5 F)
Wettest day (Rx1day)
The wettest day of the year at Fort Macleod, 1876 to 1983. The record is 98.0 mm (3.9 in) in 1916, marked on the chart; the median year is 37.5 mm (1.5 in).
Wettest day (Rx1day) at Fort Macleod by year
Year
Wettest day (Rx1day)
1876
n/a
1877
10.2 mm (0.4 in)
1878
43.4 mm (1.7 in)
1879
45.7 mm (1.8 in)
1885
14.0 mm (0.6 in)
1886
10.2 mm (0.4 in)
1895
5.1 mm (0.20 in)
1896
30.5 mm (1.2 in)
1897
34.5 mm (1.4 in)
1898
50.8 mm (2.0 in)
1899
44.7 mm (1.8 in)
1900
21.6 mm (0.9 in)
1901
40.6 mm (1.6 in)
1902
21.6 mm (0.9 in)
1903
23.1 mm (0.9 in)
1904
12.7 mm (0.5 in)
1905
30.5 mm (1.2 in)
1906
43.2 mm (1.7 in)
1907
22.4 mm (0.9 in)
1908
44.7 mm (1.8 in)
1909
38.1 mm (1.5 in)
1910
19.3 mm (0.8 in)
1911
41.1 mm (1.6 in)
1912
27.9 mm (1.1 in)
1913
34.8 mm (1.4 in)
1914
45.7 mm (1.8 in)
1915
41.9 mm (1.6 in)
1916
98.0 mm (3.9 in)
1917
30.5 mm (1.2 in)
1918
20.3 mm (0.8 in)
1919
27.4 mm (1.1 in)
1920
47.0 mm (1.9 in)
1921
45.7 mm (1.8 in)
1922
76.2 mm (3.0 in)
1923
55.9 mm (2.2 in)
1924
30.5 mm (1.2 in)
1925
61.2 mm (2.4 in)
1926
48.0 mm (1.9 in)
1927
29.5 mm (1.2 in)
1928
58.4 mm (2.3 in)
1929
37.8 mm (1.5 in)
1930
32.5 mm (1.3 in)
1931
32.8 mm (1.3 in)
1932
58.9 mm (2.3 in)
1933
27.4 mm (1.1 in)
1934
31.0 mm (1.2 in)
1935
35.6 mm (1.4 in)
1936
27.9 mm (1.1 in)
1937
66.5 mm (2.6 in)
1938
30.5 mm (1.2 in)
1939
76.7 mm (3.0 in)
1940
37.1 mm (1.5 in)
1941
20.3 mm (0.8 in)
1942
55.4 mm (2.2 in)
1943
9.7 mm (0.38 in)
1944
13.7 mm (0.5 in)
1945
27.4 mm (1.1 in)
1946
97.0 mm (3.8 in)
1947
66.5 mm (2.6 in)
1948
51.8 mm (2.0 in)
1949
52.8 mm (2.1 in)
1950
47.8 mm (1.9 in)
1951
77.7 mm (3.1 in)
1952
44.7 mm (1.8 in)
1953
61.7 mm (2.4 in)
1954
30.5 mm (1.2 in)
1955
46.0 mm (1.8 in)
1956
31.8 mm (1.3 in)
1957
26.9 mm (1.1 in)
1958
18.3 mm (0.7 in)
1959
56.4 mm (2.2 in)
1960
20.3 mm (0.8 in)
1961
43.4 mm (1.7 in)
1962
21.8 mm (0.9 in)
1963
76.7 mm (3.0 in)
1964
25.4 mm (1.0 in)
1965
31.8 mm (1.3 in)
1966
46.5 mm (1.8 in)
1967
45.7 mm (1.8 in)
1968
49.3 mm (1.9 in)
1969
42.7 mm (1.7 in)
1970
34.3 mm (1.4 in)
1971
22.9 mm (0.9 in)
1972
50.8 mm (2.0 in)
1973
26.4 mm (1.0 in)
1974
48.3 mm (1.9 in)
1975
69.3 mm (2.7 in)
1976
52.1 mm (2.1 in)
1977
30.5 mm (1.2 in)
1978
36.8 mm (1.4 in)
1979
35.6 mm (1.4 in)
1980
38.6 mm (1.5 in)
1981
73.3 mm (2.9 in)
1982
25.0 mm (1.0 in)
1983
39.0 mm (1.5 in)
Wettest five days (Rx5day)
The wettest five days of the year at Fort Macleod, 1876 to 1983. The record is 141.7 mm (5.6 in) in 1947, marked on the chart; the median year is 61.8 mm (2.4 in).
Wettest five days (Rx5day) at Fort Macleod by year
Year
Wettest five days (Rx5day)
1876
n/a
1877
12.7 mm (0.5 in)
1878
94.9 mm (3.7 in)
1879
116.3 mm (4.6 in)
1885
19.8 mm (0.8 in)
1886
15.3 mm (0.6 in)
1895
5.1 mm (0.20 in)
1896
45.1 mm (1.8 in)
1897
64.4 mm (2.5 in)
1898
67.1 mm (2.6 in)
1899
85.8 mm (3.4 in)
1900
48.5 mm (1.9 in)
1901
62.4 mm (2.5 in)
1902
63.8 mm (2.5 in)
1903
29.2 mm (1.1 in)
1904
22.8 mm (0.9 in)
1905
40.6 mm (1.6 in)
1906
63.3 mm (2.5 in)
1907
35.6 mm (1.4 in)
1908
95.2 mm (3.7 in)
1909
58.9 mm (2.3 in)
1910
30.7 mm (1.2 in)
1911
70.1 mm (2.8 in)
1912
40.7 mm (1.6 in)
1913
45.0 mm (1.8 in)
1914
62.5 mm (2.5 in)
1915
56.7 mm (2.2 in)
1916
104.4 mm (4.1 in)
1917
44.7 mm (1.8 in)
1918
32.5 mm (1.3 in)
1919
50.3 mm (2.0 in)
1920
59.4 mm (2.3 in)
1921
52.1 mm (2.1 in)
1922
113.1 mm (4.5 in)
1923
82.3 mm (3.2 in)
1924
43.5 mm (1.7 in)
1925
64.5 mm (2.5 in)
1926
81.5 mm (3.2 in)
1927
97.6 mm (3.8 in)
1928
85.0 mm (3.3 in)
1929
87.6 mm (3.4 in)
1930
46.7 mm (1.8 in)
1931
44.0 mm (1.7 in)
1932
84.9 mm (3.3 in)
1933
43.6 mm (1.7 in)
1934
94.5 mm (3.7 in)
1935
45.7 mm (1.8 in)
1936
60.1 mm (2.4 in)
1937
90.9 mm (3.6 in)
1938
45.8 mm (1.8 in)
1939
92.9 mm (3.7 in)
1940
61.5 mm (2.4 in)
1941
31.5 mm (1.2 in)
1942
97.1 mm (3.8 in)
1943
16.8 mm (0.7 in)
1944
27.0 mm (1.1 in)
1945
67.6 mm (2.7 in)
1946
116.8 mm (4.6 in)
1947
141.7 mm (5.6 in)
1948
112.3 mm (4.4 in)
1949
64.0 mm (2.5 in)
1950
57.5 mm (2.3 in)
1951
109.2 mm (4.3 in)
1952
59.1 mm (2.3 in)
1953
127.2 mm (5.0 in)
1954
64.2 mm (2.5 in)
1955
77.5 mm (3.1 in)
1956
70.4 mm (2.8 in)
1957
42.9 mm (1.7 in)
1958
33.5 mm (1.3 in)
1959
84.3 mm (3.3 in)
1960
35.5 mm (1.4 in)
1961
53.1 mm (2.1 in)
1962
27.7 mm (1.1 in)
1963
107.4 mm (4.2 in)
1964
67.5 mm (2.7 in)
1965
64.8 mm (2.6 in)
1966
49.8 mm (2.0 in)
1967
80.0 mm (3.1 in)
1968
91.0 mm (3.6 in)
1969
90.2 mm (3.6 in)
1970
83.1 mm (3.3 in)
1971
53.1 mm (2.1 in)
1972
58.2 mm (2.3 in)
1973
46.2 mm (1.8 in)
1974
48.3 mm (1.9 in)
1975
78.4 mm (3.1 in)
1976
97.8 mm (3.9 in)
1977
31.8 mm (1.3 in)
1978
62.0 mm (2.4 in)
1979
46.1 mm (1.8 in)
1980
87.0 mm (3.4 in)
1981
107.7 mm (4.2 in)
1982
48.4 mm (1.9 in)
1983
45.6 mm (1.8 in)
Longest dry spell (CDD)
The longest dry spell of the year at Fort Macleod, 1876 to 1983. The record is 96 days in 1948, marked on the chart; the median year is 34 days.
Longest dry spell (CDD) at Fort Macleod by year
Year
Longest dry spell (CDD)
1876
n/a
1877
19 days
1878
28 days
1879
33 days
1885
13 days
1886
10 days
1895
61 days
1896
35 days
1897
39 days
1898
26 days
1899
41 days
1900
40 days
1901
58 days
1902
34 days
1903
8 days
1904
77 days
1905
35 days
1906
32 days
1907
45 days
1908
30 days
1909
41 days
1910
39 days
1911
36 days
1912
41 days
1913
49 days
1914
32 days
1915
40 days
1916
25 days
1917
34 days
1918
36 days
1919
43 days
1920
38 days
1921
31 days
1922
44 days
1923
28 days
1924
25 days
1925
28 days
1926
45 days
1927
35 days
1928
45 days
1929
29 days
1930
40 days
1931
36 days
1932
19 days
1933
32 days
1934
42 days
1935
48 days
1936
41 days
1937
23 days
1938
33 days
1939
53 days
1940
26 days
1941
22 days
1942
20 days
1943
34 days
1944
42 days
1945
28 days
1946
38 days
1947
16 days
1948
96 days
1949
39 days
1950
27 days
1951
29 days
1952
54 days
1953
30 days
1954
38 days
1955
46 days
1956
41 days
1957
22 days
1958
26 days
1959
26 days
1960
45 days
1961
22 days
1962
28 days
1963
30 days
1964
41 days
1965
44 days
1966
29 days
1967
36 days
1968
59 days
1969
65 days
1970
30 days
1971
25 days
1972
33 days
1973
32 days
1974
32 days
1975
30 days
1976
32 days
1977
35 days
1978
41 days
1979
27 days
1980
25 days
1981
35 days
1982
21 days
1983
32 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
82 years with a frost
Across 82 years with a frost, the median last spring frost at Fort Macleod falls on 18 May and the median first autumn frost on 16 September, which leaves a median of 121 days between them.
In 1954 to 1983 the median growing season was 121 days. That is 4 days more than in 1896 to 1927.
Fitted over all years, the growing season changes by +1.8 days per decade at this station.
Frost dates and growing season at Fort Macleod
Measure
Median, all years
Earliest period (1896 to 1927)
Recent period (1954 to 1983)
Recent against earliest
Fitted trend
Last spring frost
18 May
20 May
17 May
3 days earlier
-0.7 days per decade
First autumn frost
16 September
14 September
16 September
2 days later
+1.0 days per decade
Growing days
121 days
117 days
121 days
4 days more
+1.8 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
84 years, 1896 to 1983
A day with at least 38.0 mm (1.5 in) of rain is expected about once in 2 years. A day with at least 100.4 mm (4.0 in) of rain is expected about once in 100 years.
Rainfall return levels at Fort Macleod: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
38.0 mm (1.5 in)
5 years
54.2 mm (2.1 in)
10 years
65.1 mm (2.6 in)
25 years
79.1 mm (3.1 in)
50 years
89.7 mm (3.5 in)
100 years
100.4 mm (4.0 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 1896 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: 98.0 mm (3.9 in) in 1916; 97.0 mm (3.8 in) in 1946; 77.7 mm (3.1 in) in 1951.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Fort Macleod standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Fort Macleod 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.