Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Medicine Hat A. 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 Medicine Hat A, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
18.3 C (64.9 F)
-46.1 C (-51.0 F)
n/a
n/a
Feb
18.3 C (64.9 F)
-46.1 C (-51.0 F)
n/a
n/a
Mar
28.9 C (84.0 F)
-38.9 C (-38.0 F)
n/a
n/a
Apr
35.6 C (96.1 F)
-26.7 C (-16.1 F)
n/a
n/a
May
37.2 C (99.0 F)
-11.1 C (12.0 F)
n/a
n/a
Jun
41.7 C (107.1 F)
-1.1 C (30.0 F)
n/a
n/a
Jul
42.2 C (108.0 F)
2.2 C (36.0 F)
n/a
n/a
Aug
41.1 C (106.0 F)
-0.6 C (30.9 F)
n/a
n/a
Sep
37.8 C (100.0 F)
-12.8 C (9.0 F)
n/a
n/a
Oct
33.9 C (93.0 F)
-23.3 C (-9.9 F)
n/a
n/a
Nov
24.4 C (75.9 F)
-37.8 C (-36.0 F)
n/a
n/a
Dec
20.0 C (68.0 F)
-45.6 C (-50.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Medicine Hat A still stand. 1936 holds the most, with 41.
Standing records at Medicine Hat A by the year they were set
Year set
Standing records
1883
8
1884
29
1885
14
1886
19
1887
27
1888
17
1889
18
1890
22
1891
21
1892
9
1893
17
1894
8
1895
13
1896
34
1897
27
1898
14
1899
23
1900
11
1901
13
1902
8
1903
13
1904
7
1905
24
1906
23
1907
10
1908
11
1909
14
1910
24
1911
9
1912
10
1913
13
1914
19
1915
8
1916
14
1917
12
1918
24
1919
39
1920
6
1921
12
1922
7
1923
15
1924
21
1925
14
1926
10
1927
15
1928
13
1929
15
1930
23
1931
20
1932
15
1933
14
1934
21
1935
16
1936
41
1937
10
1938
7
1939
31
1940
10
1941
12
1942
10
1943
18
1944
10
1945
3
1946
9
1947
5
1948
5
1949
14
1950
19
1951
30
1952
10
1953
17
1954
25
1955
13
1956
12
1957
16
1958
8
1959
19
1960
11
1961
14
1962
12
1963
15
1964
10
1965
6
1966
6
1967
13
1968
13
1969
13
1970
11
1971
5
1972
15
1973
15
1974
4
1975
6
1976
8
1977
17
1978
6
1979
5
1980
9
1981
12
1982
6
1983
15
All-Time Record Progression
5 new records
5 all-time records were set at Medicine Hat A between 20 July 1921 and 11 March 1954. Each dot is a new record.
When Medicine Hat A set new all-time records
Date
Kind
Detail
1921-07-20
Record high minimum temperature
Record high minimum temperature 25.6 C (78.1 F)
1927-04-09
Record daily snowfall
Record daily snowfall 25.4 cm (10.0 in)
1927-08-14
Record daily precipitation
Record daily precipitation 121.9 mm (4.8 in)
1938-03-29
Record daily snowfall
Record daily snowfall 30.5 cm (12.0 in)
1954-03-11
Record daily snowfall
Record daily snowfall 33.8 cm (13.3 in)
Wettest Day of Each Month
Aug: 121.9 mm (4.8 in)
The wettest day on record for each calendar month at Medicine Hat A. The most was 121.9 mm (4.8 in) on 14 August 1927.
Record daily precipitation for each month at Medicine Hat A
Month
Record daily precipitation (mm)
Date
Jan
20.6 mm (0.8 in)
12 January 1960
Feb
27.9 mm (1.1 in)
7 February 1943
Mar
33.8 mm (1.3 in)
11 March 1954
Apr
32.3 mm (1.3 in)
27 April 1974
May
40.6 mm (1.6 in)
6 May 1896
Jun
71.6 mm (2.8 in)
7 June 1968
Jul
57.4 mm (2.3 in)
25 July 1966
Aug
121.9 mm (4.8 in)
14 August 1927
Sep
118.6 mm (4.7 in)
22 September 1940
Oct
42.4 mm (1.7 in)
4 October 1914
Nov
26.7 mm (1.1 in)
14 November 1958
Dec
22.9 mm (0.9 in)
7 December 1945
Period of Record Coverage
1883 to 1983
Complete yearUnder 90 percent of days
101 years of record at Medicine Hat A, 1883 to 1983. 2 years have data for under 90 percent of days and are left out of rankings: 1883, 1910.
Cooler than the station meanWarmer than the station mean
One stripe for each of 95 complete years at Medicine Hat A, 1885 to 1983. Blue stripes are years cooler than the station's own mean of 5.4 C (41.7 F); red stripes are warmer. The coolest year was 1887, at 2.7 C (36.9 F), and the warmest was 1931, at 7.6 C (45.6 F). The strongest colour marks a difference of 2.7 C (4.9 F).
Annual mean temperature at Medicine Hat A as warming stripes, 1885 to 1983
Year
Annual mean temperature
Difference from the station mean
1885
5.5 C
+0.11 C
1886
5.2 C
-0.18 C
1887
2.7 C
-2.68 C
1888
4.1 C
-1.27 C
1889
6.2 C
+0.81 C
1890
4.5 C
-0.90 C
1891
5.6 C
+0.17 C
1892
5.0 C
-0.40 C
1893
3.4 C
-2.03 C
1894
6.2 C
+0.76 C
1895
4.5 C
-0.94 C
1896
4.4 C
-1.01 C
1897
4.4 C
-0.99 C
1898
5.0 C
-0.41 C
1899
3.8 C
-1.58 C
1900
6.5 C
+1.09 C
1901
6.3 C
+0.88 C
1902
5.3 C
-0.08 C
1903
5.5 C
+0.14 C
1904
5.6 C
+0.21 C
1905
6.6 C
+1.21 C
1906
6.8 C
+1.36 C
1907
4.9 C
-0.49 C
1908
7.3 C
+1.93 C
1909
5.1 C
-0.33 C
1912
6.2 C
+0.84 C
1913
6.5 C
+1.06 C
1914
6.9 C
+1.45 C
1915
7.1 C
+1.65 C
1916
4.2 C
-1.22 C
1917
5.0 C
-0.39 C
1918
6.8 C
+1.36 C
1919
6.1 C
+0.72 C
1920
6.3 C
+0.86 C
1921
6.9 C
+1.48 C
1922
5.6 C
+0.23 C
1923
7.2 C
+1.75 C
1924
6.1 C
+0.66 C
1925
6.2 C
+0.78 C
1926
7.1 C
+1.70 C
1927
4.4 C
-0.96 C
1928
7.0 C
+1.61 C
1929
5.4 C
-0.02 C
1930
7.2 C
+1.83 C
1931
7.6 C
+2.15 C
1932
5.0 C
-0.43 C
1933
5.5 C
+0.07 C
1934
7.2 C
+1.83 C
1935
4.4 C
-0.96 C
1936
4.5 C
-0.87 C
1937
4.7 C
-0.72 C
1938
6.1 C
+0.67 C
1939
5.9 C
+0.50 C
1940
5.0 C
-0.41 C
1941
6.6 C
+1.21 C
1942
5.0 C
-0.36 C
1943
5.2 C
-0.16 C
1944
5.8 C
+0.41 C
1945
4.4 C
-1.04 C
1946
5.5 C
+0.14 C
1947
5.0 C
-0.37 C
1948
4.9 C
-0.46 C
1949
5.1 C
-0.33 C
1950
3.4 C
-2.00 C
1951
2.8 C
-2.64 C
1952
5.4 C
+0.03 C
1953
7.1 C
+1.67 C
1954
5.4 C
-0.03 C
1955
3.6 C
-1.81 C
1956
4.8 C
-0.60 C
1957
5.4 C
+0.03 C
1958
6.1 C
+0.72 C
1959
4.9 C
-0.49 C
1960
5.5 C
+0.09 C
1961
6.7 C
+1.32 C
1962
6.1 C
+0.68 C
1963
6.7 C
+1.27 C
1964
5.2 C
-0.21 C
1965
3.9 C
-1.48 C
1966
4.3 C
-1.07 C
1967
5.0 C
-0.44 C
1968
5.4 C
+0.03 C
1969
4.0 C
-1.41 C
1970
4.2 C
-1.23 C
1971
4.7 C
-0.69 C
1972
3.8 C
-1.59 C
1973
5.7 C
+0.34 C
1974
6.0 C
+0.61 C
1975
3.7 C
-1.68 C
1976
6.8 C
+1.38 C
1977
5.8 C
+0.42 C
1978
3.8 C
-1.59 C
1980
5.9 C
+0.52 C
1982
3.6 C
-1.80 C
1983
5.9 C
+0.48 C
The fitted trend in annual mean temperature here over 1885 to 1983 is -0.04 C (-0.12 to 0.04) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.1 F (-0.2 to 0.1) per decade. The slope is a straight line fitted to 95 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Medicine Hat A
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.04 C (-0.12 to 0.04) per decade
-0.1 F (-0.2 to 0.1) per decade
1885 to 1983
95
Not clearly different from zero
Mean daily maximum
-0.10 C (-0.19 to -0.01) per decade
-0.18 F (-0.34 to -0.02) per decade
1885 to 1983
95
Fall
Mean daily minimum
0.02 C (-0.06 to 0.10) per decade
0.04 F (-0.10 to 0.18) per decade
1885 to 1983
95
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
1883 to 1983
Yearly extremes at Medicine Hat A: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
42.2 C (108.0 F)
1886
37.2 C (99.0 F)
101
Coldest night (TNn)
-46.1 C (-51.0 F)
1886
-37.2 C (-35.0 F)
101
Wettest day (Rx1day)
121.9 mm (4.8 in)
1927
30.5 mm (1.2 in)
101
Wettest five days (Rx5day)
126.8 mm (5.0 in)
1927
47.5 mm (1.9 in)
101
Longest dry spell (CDD)
103 days
1930
35 days
101
Hottest day (TXx)
The hottest day of the year at Medicine Hat A, 1883 to 1983. The record is 42.2 C (108.0 F) in 1886, marked on the chart; the median year is 37.2 C (99.0 F).
Hottest day (TXx) at Medicine Hat A by year
Year
Hottest day (TXx)
1883
32.8 C (91.0 F)
1884
36.1 C (97.0 F)
1885
36.7 C (98.1 F)
1886
42.2 C (108.0 F)
1887
34.4 C (93.9 F)
1888
37.8 C (100.0 F)
1889
36.1 C (97.0 F)
1890
38.9 C (102.0 F)
1891
34.4 C (93.9 F)
1892
36.1 C (97.0 F)
1893
40.0 C (104.0 F)
1894
37.8 C (100.0 F)
1895
34.4 C (93.9 F)
1896
38.3 C (100.9 F)
1897
37.8 C (100.0 F)
1898
38.9 C (102.0 F)
1899
36.7 C (98.1 F)
1900
41.7 C (107.1 F)
1901
35.6 C (96.1 F)
1902
35.6 C (96.1 F)
1903
35.0 C (95.0 F)
1904
38.9 C (102.0 F)
1905
35.0 C (95.0 F)
1906
39.4 C (102.9 F)
1907
33.3 C (91.9 F)
1908
39.4 C (102.9 F)
1909
35.0 C (95.0 F)
1910
39.4 C (102.9 F)
1911
37.2 C (99.0 F)
1912
38.9 C (102.0 F)
1913
36.7 C (98.1 F)
1914
40.0 C (104.0 F)
1915
36.1 C (97.0 F)
1916
34.4 C (93.9 F)
1917
38.3 C (100.9 F)
1918
36.7 C (98.1 F)
1919
39.4 C (102.9 F)
1920
36.7 C (98.1 F)
1921
38.3 C (100.9 F)
1922
37.2 C (99.0 F)
1923
36.7 C (98.1 F)
1924
39.4 C (102.9 F)
1925
37.2 C (99.0 F)
1926
38.3 C (100.9 F)
1927
35.0 C (95.0 F)
1928
36.7 C (98.1 F)
1929
38.9 C (102.0 F)
1930
38.9 C (102.0 F)
1931
40.0 C (104.0 F)
1932
38.3 C (100.9 F)
1933
40.0 C (104.0 F)
1934
37.2 C (99.0 F)
1935
38.3 C (100.9 F)
1936
41.1 C (106.0 F)
1937
40.6 C (105.1 F)
1938
36.7 C (98.1 F)
1939
40.0 C (104.0 F)
1940
38.9 C (102.0 F)
1941
40.0 C (104.0 F)
1942
35.0 C (95.0 F)
1943
36.7 C (98.1 F)
1944
36.7 C (98.1 F)
1945
38.3 C (100.9 F)
1946
37.8 C (100.0 F)
1947
37.2 C (99.0 F)
1948
36.1 C (97.0 F)
1949
38.9 C (102.0 F)
1950
36.1 C (97.0 F)
1951
38.3 C (100.9 F)
1952
35.0 C (95.0 F)
1953
38.9 C (102.0 F)
1954
37.8 C (100.0 F)
1955
35.0 C (95.0 F)
1956
35.0 C (95.0 F)
1957
35.6 C (96.1 F)
1958
35.0 C (95.0 F)
1959
36.7 C (98.1 F)
1960
38.9 C (102.0 F)
1961
41.1 C (106.0 F)
1962
34.4 C (93.9 F)
1963
36.7 C (98.1 F)
1964
37.2 C (99.0 F)
1965
34.4 C (93.9 F)
1966
35.0 C (95.0 F)
1967
37.8 C (100.0 F)
1968
35.6 C (96.1 F)
1969
40.6 C (105.1 F)
1970
38.3 C (100.9 F)
1971
38.3 C (100.9 F)
1972
35.0 C (95.0 F)
1973
38.3 C (100.9 F)
1974
36.7 C (98.1 F)
1975
37.2 C (99.0 F)
1976
35.6 C (96.1 F)
1977
34.6 C (94.3 F)
1978
36.4 C (97.5 F)
1979
36.9 C (98.4 F)
1980
33.9 C (93.0 F)
1981
35.2 C (95.4 F)
1982
33.4 C (92.1 F)
1983
39.7 C (103.5 F)
Coldest night (TNn)
The coldest night of the year at Medicine Hat A, 1883 to 1983. The record is -46.1 C (-51.0 F) in 1886, marked on the chart; the median year is -37.2 C (-35.0 F).
Coldest night (TNn) at Medicine Hat A by year
Year
Coldest night (TNn)
1883
-6.7 C (19.9 F)
1884
-45.6 C (-50.1 F)
1885
-40.6 C (-41.1 F)
1886
-46.1 C (-51.0 F)
1887
-46.1 C (-51.0 F)
1888
-40.0 C (-40.0 F)
1889
-36.7 C (-34.1 F)
1890
-40.6 C (-41.1 F)
1891
-37.2 C (-35.0 F)
1892
-37.2 C (-35.0 F)
1893
-44.4 C (-47.9 F)
1894
-35.0 C (-31.0 F)
1895
-38.3 C (-36.9 F)
1896
-37.8 C (-36.0 F)
1897
-45.6 C (-50.1 F)
1898
-31.7 C (-25.1 F)
1899
-42.8 C (-45.0 F)
1900
-37.2 C (-35.0 F)
1901
-35.6 C (-32.1 F)
1902
-35.6 C (-32.1 F)
1903
-33.3 C (-27.9 F)
1904
-35.0 C (-31.0 F)
1905
-42.2 C (-44.0 F)
1906
-35.0 C (-31.0 F)
1907
-42.2 C (-44.0 F)
1908
-29.4 C (-20.9 F)
1909
-39.4 C (-38.9 F)
1910
-34.4 C (-29.9 F)
1911
-35.6 C (-32.1 F)
1912
-43.9 C (-47.0 F)
1913
-40.0 C (-40.0 F)
1914
-39.4 C (-38.9 F)
1915
-32.8 C (-27.0 F)
1916
-44.4 C (-47.9 F)
1917
-43.3 C (-45.9 F)
1918
-42.2 C (-44.0 F)
1919
-37.8 C (-36.0 F)
1920
-40.0 C (-40.0 F)
1921
-30.0 C (-22.0 F)
1922
-38.9 C (-38.0 F)
1923
-36.7 C (-34.1 F)
1924
-38.9 C (-38.0 F)
1925
-33.3 C (-27.9 F)
1926
-28.9 C (-20.0 F)
1927
-37.8 C (-36.0 F)
1928
-37.8 C (-36.0 F)
1929
-41.7 C (-43.1 F)
1930
-37.8 C (-36.0 F)
1931
-26.7 C (-16.1 F)
1932
-35.6 C (-32.1 F)
1933
-33.3 C (-27.9 F)
1934
-35.0 C (-31.0 F)
1935
-38.9 C (-38.0 F)
1936
-45.0 C (-49.0 F)
1937
-40.6 C (-41.1 F)
1938
-40.6 C (-41.1 F)
1939
-45.0 C (-49.0 F)
1940
-37.2 C (-35.0 F)
1941
-30.6 C (-23.1 F)
1942
-35.6 C (-32.1 F)
1943
-44.4 C (-47.9 F)
1944
-32.2 C (-26.0 F)
1945
-33.3 C (-27.9 F)
1946
-31.7 C (-25.1 F)
1947
-36.1 C (-33.0 F)
1948
-36.1 C (-33.0 F)
1949
-38.3 C (-36.9 F)
1950
-45.0 C (-49.0 F)
1951
-38.3 C (-36.9 F)
1952
-34.4 C (-29.9 F)
1953
-30.0 C (-22.0 F)
1954
-42.2 C (-44.0 F)
1955
-33.9 C (-29.0 F)
1956
-38.3 C (-36.9 F)
1957
-40.6 C (-41.1 F)
1958
-35.6 C (-32.1 F)
1959
-31.7 C (-25.1 F)
1960
-32.8 C (-27.0 F)
1961
-32.2 C (-26.0 F)
1962
-36.7 C (-34.1 F)
1963
-36.1 C (-33.0 F)
1964
-36.1 C (-33.0 F)
1965
-33.9 C (-29.0 F)
1966
-37.2 C (-35.0 F)
1967
-33.3 C (-27.9 F)
1968
-43.3 C (-45.9 F)
1969
-42.2 C (-44.0 F)
1970
-42.8 C (-45.0 F)
1971
-37.2 C (-35.0 F)
1972
-40.6 C (-41.1 F)
1973
-30.6 C (-23.1 F)
1974
-35.0 C (-31.0 F)
1975
-36.7 C (-34.1 F)
1976
-33.3 C (-27.9 F)
1977
-43.3 C (-45.9 F)
1978
-32.7 C (-26.9 F)
1979
-39.5 C (-39.1 F)
1980
-34.4 C (-29.9 F)
1981
-29.9 C (-21.8 F)
1982
-36.4 C (-33.5 F)
1983
-40.4 C (-40.7 F)
Wettest day (Rx1day)
The wettest day of the year at Medicine Hat A, 1883 to 1983. The record is 121.9 mm (4.8 in) in 1927, marked on the chart; the median year is 30.5 mm (1.2 in).
Wettest day (Rx1day) at Medicine Hat A by year
Year
Wettest day (Rx1day)
1883
11.9 mm (0.5 in)
1884
44.5 mm (1.8 in)
1885
36.1 mm (1.4 in)
1886
20.3 mm (0.8 in)
1887
33.0 mm (1.3 in)
1888
39.1 mm (1.5 in)
1889
20.3 mm (0.8 in)
1890
35.6 mm (1.4 in)
1891
45.2 mm (1.8 in)
1892
27.2 mm (1.1 in)
1893
31.2 mm (1.2 in)
1894
40.9 mm (1.6 in)
1895
42.9 mm (1.7 in)
1896
40.6 mm (1.6 in)
1897
64.8 mm (2.6 in)
1898
25.4 mm (1.0 in)
1899
47.0 mm (1.9 in)
1900
48.5 mm (1.9 in)
1901
40.1 mm (1.6 in)
1902
23.6 mm (0.9 in)
1903
27.9 mm (1.1 in)
1904
38.1 mm (1.5 in)
1905
34.3 mm (1.4 in)
1906
26.4 mm (1.0 in)
1907
17.8 mm (0.7 in)
1908
34.8 mm (1.4 in)
1909
16.3 mm (0.6 in)
1910
23.9 mm (0.9 in)
1911
31.0 mm (1.2 in)
1912
27.2 mm (1.1 in)
1913
38.6 mm (1.5 in)
1914
42.4 mm (1.7 in)
1915
37.1 mm (1.5 in)
1916
37.8 mm (1.5 in)
1917
17.5 mm (0.7 in)
1918
22.6 mm (0.9 in)
1919
16.8 mm (0.7 in)
1920
22.4 mm (0.9 in)
1921
27.9 mm (1.1 in)
1922
34.0 mm (1.3 in)
1923
30.0 mm (1.2 in)
1924
17.3 mm (0.7 in)
1925
29.0 mm (1.1 in)
1926
26.4 mm (1.0 in)
1927
121.9 mm (4.8 in)
1928
27.9 mm (1.1 in)
1929
20.3 mm (0.8 in)
1930
40.6 mm (1.6 in)
1931
19.8 mm (0.8 in)
1932
41.9 mm (1.6 in)
1933
21.3 mm (0.8 in)
1934
57.2 mm (2.3 in)
1935
18.3 mm (0.7 in)
1936
26.2 mm (1.0 in)
1937
19.6 mm (0.8 in)
1938
30.5 mm (1.2 in)
1939
23.4 mm (0.9 in)
1940
118.6 mm (4.7 in)
1941
39.4 mm (1.6 in)
1942
33.8 mm (1.3 in)
1943
27.9 mm (1.1 in)
1944
39.6 mm (1.6 in)
1945
30.7 mm (1.2 in)
1946
36.6 mm (1.4 in)
1947
25.1 mm (1.0 in)
1948
16.5 mm (0.6 in)
1949
35.6 mm (1.4 in)
1950
25.7 mm (1.0 in)
1951
54.1 mm (2.1 in)
1952
23.4 mm (0.9 in)
1953
55.4 mm (2.2 in)
1954
37.1 mm (1.5 in)
1955
31.8 mm (1.3 in)
1956
27.9 mm (1.1 in)
1957
30.5 mm (1.2 in)
1958
30.7 mm (1.2 in)
1959
21.8 mm (0.9 in)
1960
21.8 mm (0.9 in)
1961
20.3 mm (0.8 in)
1962
26.4 mm (1.0 in)
1963
48.3 mm (1.9 in)
1964
24.6 mm (1.0 in)
1965
27.9 mm (1.1 in)
1966
57.4 mm (2.3 in)
1967
30.5 mm (1.2 in)
1968
71.6 mm (2.8 in)
1969
25.4 mm (1.0 in)
1970
39.9 mm (1.6 in)
1971
18.8 mm (0.7 in)
1972
23.9 mm (0.9 in)
1973
71.1 mm (2.8 in)
1974
32.3 mm (1.3 in)
1975
29.7 mm (1.2 in)
1976
32.3 mm (1.3 in)
1977
36.3 mm (1.4 in)
1978
61.1 mm (2.4 in)
1979
28.8 mm (1.1 in)
1980
30.6 mm (1.2 in)
1981
25.2 mm (1.0 in)
1982
27.4 mm (1.1 in)
1983
25.3 mm (1.0 in)
Wettest five days (Rx5day)
The wettest five days of the year at Medicine Hat A, 1883 to 1983. The record is 126.8 mm (5.0 in) in 1927, marked on the chart; the median year is 47.5 mm (1.9 in).
Wettest five days (Rx5day) at Medicine Hat A by year
Year
Wettest five days (Rx5day)
1883
14.4 mm (0.6 in)
1884
78.3 mm (3.1 in)
1885
40.9 mm (1.6 in)
1886
35.8 mm (1.4 in)
1887
47.7 mm (1.9 in)
1888
90.0 mm (3.5 in)
1889
50.6 mm (2.0 in)
1890
40.9 mm (1.6 in)
1891
94.5 mm (3.7 in)
1892
36.8 mm (1.4 in)
1893
44.1 mm (1.7 in)
1894
59.2 mm (2.3 in)
1895
61.5 mm (2.4 in)
1896
59.9 mm (2.4 in)
1897
92.8 mm (3.7 in)
1898
43.5 mm (1.7 in)
1899
66.3 mm (2.6 in)
1900
67.5 mm (2.7 in)
1901
85.2 mm (3.4 in)
1902
39.9 mm (1.6 in)
1903
60.9 mm (2.4 in)
1904
41.1 mm (1.6 in)
1905
44.9 mm (1.8 in)
1906
50.5 mm (2.0 in)
1907
22.9 mm (0.9 in)
1908
69.6 mm (2.7 in)
1909
32.2 mm (1.3 in)
1910
32.5 mm (1.3 in)
1911
49.5 mm (1.9 in)
1912
32.0 mm (1.3 in)
1913
51.8 mm (2.0 in)
1914
73.4 mm (2.9 in)
1915
62.7 mm (2.5 in)
1916
54.3 mm (2.1 in)
1917
30.5 mm (1.2 in)
1918
31.2 mm (1.2 in)
1919
21.4 mm (0.8 in)
1920
34.0 mm (1.3 in)
1921
37.6 mm (1.5 in)
1922
35.0 mm (1.4 in)
1923
65.8 mm (2.6 in)
1924
24.4 mm (1.0 in)
1925
56.9 mm (2.2 in)
1926
44.7 mm (1.8 in)
1927
126.8 mm (5.0 in)
1928
48.2 mm (1.9 in)
1929
33.2 mm (1.3 in)
1930
54.8 mm (2.2 in)
1931
28.4 mm (1.1 in)
1932
47.5 mm (1.9 in)
1933
36.0 mm (1.4 in)
1934
68.7 mm (2.7 in)
1935
32.5 mm (1.3 in)
1936
34.3 mm (1.4 in)
1937
26.1 mm (1.0 in)
1938
59.4 mm (2.3 in)
1939
52.3 mm (2.1 in)
1940
123.7 mm (4.9 in)
1941
62.1 mm (2.4 in)
1942
47.6 mm (1.9 in)
1943
28.2 mm (1.1 in)
1944
43.7 mm (1.7 in)
1945
49.3 mm (1.9 in)
1946
47.3 mm (1.9 in)
1947
50.5 mm (2.0 in)
1948
28.4 mm (1.1 in)
1949
35.6 mm (1.4 in)
1950
50.5 mm (2.0 in)
1951
66.4 mm (2.6 in)
1952
34.8 mm (1.4 in)
1953
71.6 mm (2.8 in)
1954
58.5 mm (2.3 in)
1955
43.0 mm (1.7 in)
1956
51.5 mm (2.0 in)
1957
34.3 mm (1.4 in)
1958
40.0 mm (1.6 in)
1959
39.8 mm (1.6 in)
1960
39.6 mm (1.6 in)
1961
26.1 mm (1.0 in)
1962
49.2 mm (1.9 in)
1963
56.2 mm (2.2 in)
1964
51.3 mm (2.0 in)
1965
43.4 mm (1.7 in)
1966
57.4 mm (2.3 in)
1967
45.2 mm (1.8 in)
1968
79.6 mm (3.1 in)
1969
34.5 mm (1.4 in)
1970
80.0 mm (3.1 in)
1971
23.1 mm (0.9 in)
1972
37.6 mm (1.5 in)
1973
118.5 mm (4.7 in)
1974
37.7 mm (1.5 in)
1975
54.6 mm (2.1 in)
1976
61.0 mm (2.4 in)
1977
37.2 mm (1.5 in)
1978
84.5 mm (3.3 in)
1979
45.7 mm (1.8 in)
1980
38.2 mm (1.5 in)
1981
37.0 mm (1.5 in)
1982
57.2 mm (2.3 in)
1983
56.8 mm (2.2 in)
Longest dry spell (CDD)
The longest dry spell of the year at Medicine Hat A, 1883 to 1983. The record is 103 days in 1930, marked on the chart; the median year is 35 days.
Longest dry spell (CDD) at Medicine Hat A by year
Year
Longest dry spell (CDD)
1883
19 days
1884
48 days
1885
41 days
1886
35 days
1887
29 days
1888
32 days
1889
30 days
1890
44 days
1891
30 days
1892
41 days
1893
27 days
1894
41 days
1895
31 days
1896
18 days
1897
35 days
1898
21 days
1899
28 days
1900
25 days
1901
29 days
1902
26 days
1903
41 days
1904
54 days
1905
36 days
1906
41 days
1907
88 days
1908
44 days
1909
35 days
1910
44 days
1911
28 days
1912
38 days
1913
50 days
1914
39 days
1915
73 days
1916
35 days
1917
41 days
1918
44 days
1919
47 days
1920
53 days
1921
27 days
1922
63 days
1923
42 days
1924
52 days
1925
36 days
1926
57 days
1927
25 days
1928
54 days
1929
40 days
1930
103 days
1931
49 days
1932
21 days
1933
25 days
1934
32 days
1935
44 days
1936
40 days
1937
31 days
1938
25 days
1939
52 days
1940
30 days
1941
39 days
1942
32 days
1943
62 days
1944
26 days
1945
29 days
1946
22 days
1947
37 days
1948
29 days
1949
37 days
1950
29 days
1951
27 days
1952
51 days
1953
53 days
1954
31 days
1955
39 days
1956
23 days
1957
38 days
1958
32 days
1959
30 days
1960
46 days
1961
28 days
1962
35 days
1963
63 days
1964
34 days
1965
38 days
1966
38 days
1967
35 days
1968
23 days
1969
31 days
1970
27 days
1971
26 days
1972
28 days
1973
59 days
1974
77 days
1975
23 days
1976
50 days
1977
59 days
1978
18 days
1979
24 days
1980
41 days
1981
40 days
1982
23 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
95 years with a frost
Across 95 years with a frost, the median last spring frost at Medicine Hat A falls on 14 May and the median first autumn frost on 18 September, which leaves a median of 127 days between them.
In 1952 to 1983 the median growing season was 127 days. That is 3 days more than in 1885 to 1916.
Fitted over all years, the growing season changes by +0.9 days per decade at this station.
Frost dates and growing season at Medicine Hat A
Measure
Median, all years
Earliest period (1885 to 1916)
Recent period (1952 to 1983)
Recent against earliest
Fitted trend
Last spring frost
14 May
15 May
14 May
1 day earlier
-0.2 days per decade
First autumn frost
18 September
16 September
19 September
3 days later
+0.7 days per decade
Growing days
127 days
124 days
127 days
3 days more
+0.9 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
95 years, 1884 to 1983
A day with at least 30.3 mm (1.2 in) of rain is expected about once in 2 years. A day with at least 101.1 mm (4.0 in) of rain is expected about once in 100 years.
Rainfall return levels at Medicine Hat A: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
30.3 mm (1.2 in)
5 years
42.7 mm (1.7 in)
10 years
53.0 mm (2.1 in)
25 years
69.1 mm (2.7 in)
50 years
83.8 mm (3.3 in)
100 years
101.1 mm (4.0 in)
Longer than the 95 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, 95 years of values from 1884 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: 121.9 mm (4.8 in) in 1927; 118.6 mm (4.7 in) in 1940; 71.6 mm (2.8 in) in 1968.
Station Changes
2 suspected
2 changes were suspected in the annual mean temperature of Medicine Hat A, at 1948 and 1956. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1948 ran 0.6 C (1.0 F) higher than in the years before (possible change).
Relative to 5 neighbouring stations, the station's annual mean temperature from 1956 ran 0.3 C (0.6 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at Medicine Hat A, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1948
+0.6
+1.0
possible
5
1956
-0.3
-0.6
likely
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 Medicine Hat A standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Medicine Hat A 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 2026-10-12 (12 October 2026). Records are computed by this site and are not official.