Medicine Hat A Weather Records (CA003034480)
Record envelope, standing records and threshold days for Medicine Hat A (CA003034480), Alberta, Canada, with 126 years of record.
Key Facts for Medicine Hat A
- Medicine Hat A (CA003034480) is a weather station in Alberta, Canada at 50.02 latitude and -110.72 longitude, 717 m (2,352 ft) above sea level.
- The station reports from 1883 to 2008, 126 years of record.
- 1,464 records set at Medicine Hat A still stand.
- Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
- Medicine Hat A set a daily record low minimum temperature of -40.2 C (-40.4 F) on 23 December 1983.
About the Station
- Location: Alberta, Canada, 50.02 latitude, -110.72 longitude.
- Elevation: 717 m (2,352 ft).
- Period of record: 1883 to 2008, 126 years.
- Eligible elements: tmax, tmin, prcp, snow.
Daily Record Envelope and 2026
0 days at or beyond a record| 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 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| 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)| 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| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1883 | 138 | 38% | No |
| 1884 | 366 | 100% | Yes |
| 1885 | 365 | 100% | Yes |
| 1886 | 365 | 100% | Yes |
| 1887 | 365 | 100% | Yes |
| 1888 | 366 | 100% | Yes |
| 1889 | 365 | 100% | Yes |
| 1890 | 365 | 100% | Yes |
| 1891 | 365 | 100% | Yes |
| 1892 | 366 | 100% | Yes |
| 1893 | 365 | 100% | Yes |
| 1894 | 365 | 100% | Yes |
| 1895 | 365 | 100% | Yes |
| 1896 | 366 | 100% | Yes |
| 1897 | 365 | 100% | Yes |
| 1898 | 365 | 100% | Yes |
| 1899 | 365 | 100% | Yes |
| 1900 | 365 | 100% | Yes |
| 1901 | 365 | 100% | Yes |
| 1902 | 365 | 100% | Yes |
| 1903 | 365 | 100% | Yes |
| 1904 | 366 | 100% | Yes |
| 1905 | 365 | 100% | Yes |
| 1906 | 365 | 100% | Yes |
| 1907 | 365 | 100% | Yes |
| 1908 | 349 | 95% | Yes |
| 1909 | 365 | 100% | Yes |
| 1910 | 312 | 85% | No |
| 1911 | 334 | 92% | Yes |
| 1912 | 366 | 100% | Yes |
| 1913 | 365 | 100% | Yes |
| 1914 | 365 | 100% | Yes |
| 1915 | 365 | 100% | Yes |
| 1916 | 366 | 100% | Yes |
| 1917 | 365 | 100% | Yes |
| 1918 | 365 | 100% | Yes |
| 1919 | 365 | 100% | Yes |
| 1920 | 366 | 100% | Yes |
| 1921 | 365 | 100% | Yes |
| 1922 | 365 | 100% | Yes |
| 1923 | 365 | 100% | Yes |
| 1924 | 366 | 100% | Yes |
| 1925 | 365 | 100% | Yes |
| 1926 | 365 | 100% | Yes |
| 1927 | 365 | 100% | Yes |
| 1928 | 366 | 100% | Yes |
| 1929 | 365 | 100% | Yes |
| 1930 | 363 | 99% | Yes |
| 1931 | 365 | 100% | Yes |
| 1932 | 364 | 99% | Yes |
| 1933 | 363 | 99% | Yes |
| 1934 | 365 | 100% | Yes |
| 1935 | 365 | 100% | Yes |
| 1936 | 366 | 100% | Yes |
| 1937 | 365 | 100% | Yes |
| 1938 | 365 | 100% | Yes |
| 1939 | 365 | 100% | Yes |
| 1940 | 366 | 100% | Yes |
| 1941 | 365 | 100% | Yes |
| 1942 | 365 | 100% | Yes |
| 1943 | 365 | 100% | Yes |
| 1944 | 366 | 100% | Yes |
| 1945 | 364 | 100% | Yes |
| 1946 | 365 | 100% | Yes |
| 1947 | 365 | 100% | Yes |
| 1948 | 366 | 100% | Yes |
| 1949 | 364 | 100% | Yes |
| 1950 | 365 | 100% | Yes |
| 1951 | 365 | 100% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 365 | 100% | Yes |
| 1954 | 365 | 100% | Yes |
| 1955 | 365 | 100% | Yes |
| 1956 | 366 | 100% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 364 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 365 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 337 | 92% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 334 | 92% | Yes |
| 1982 | 365 | 100% | Yes |
| 1983 | 365 | 100% | Yes |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 23 December 1983 | Medicine Hat A, CA | daily low min | -40.2 C (-40.4 F) | 0.8 C (1.4 F) | 98 years | 39 of 100 (Notable) |
| 20 December 1983 | Medicine Hat A, CA | daily low max | -26.4 C (-15.5 F) | 2.0 C (3.6 F) | 12 years | 15 of 100 (Routine) |
| 19 December 1983 | Medicine Hat A, CA | daily low min | -37.0 C (-34.6 F) | 2.6 C (4.7 F) | 58 years | 29 of 100 (Routine) |
| 19 December 1983 | Medicine Hat A, CA | daily low max | -27.5 C (-17.5 F) | 3.6 C (6.5 F) | 32 years | 22 of 100 (Routine) |
| 18 December 1983 | Medicine Hat A, CA | daily low max | -29.2 C (-20.6 F) | 0.3 C (0.5 F) | 58 years | 27 of 100 (Routine) |
| 28 November 1983 | Medicine Hat A, CA | daily snowfall | 5.1 cm (2.0 in) | 0.8 cm (0.3 in) | 53 years | 28 of 100 (Routine) |
| 28 November 1983 | Medicine Hat A, CA | daily rain | 4.9 mm (0.19 in) | 0.6 mm (0.02 in) | 53 years | 20 of 100 (Routine) |
| 31 October 1983 | Medicine Hat A, CA | daily high min | 6.6 C (43.9 F) | 0.5 C (0.9 F) | 68 years | 30 of 100 (Routine) |
| 26 October 1983 | Medicine Hat A, CA | daily high min | 10.6 C (51.1 F) | 1.2 C (2.2 F) | 60 years | 30 of 100 (Routine) |
| 26 September 1983 | Medicine Hat A, CA | daily high min | 16.3 C (61.3 F) | 4.1 C (7.4 F) | 30 years | 28 of 100 (Routine) |
| 1 September 1983 | Medicine Hat A, CA | daily high min (Tie) | 16.1 C (61.0 F) | tie | 60 years | 7 of 100 (Routine) |
| 15 July 1983 | Medicine Hat A, CA | daily low min | 6.0 C (42.8 F) | 0.7 C (1.3 F) | 98 years | 41 of 100 (Notable) |
| 12 May 1983 | Medicine Hat A, CA | daily low min | -6.8 C (19.8 F) | 0.1 C (0.2 F) | 83 years | 35 of 100 (Notable) |
| 25 April 1983 | Medicine Hat A, CA | daily snowfall | 9.8 cm (3.9 in) | 6.8 cm (2.7 in) | 6 years | 27 of 100 (Routine) |
| 21 April 1983 | Medicine Hat A, CA | daily high min | 8.6 C (47.5 F) | 0.3 C (0.5 F) | 40 years | 22 of 100 (Routine) |
| 11 April 1983 | Medicine Hat A, CA | daily low max | -3.4 C (25.9 F) | 1.7 C (3.1 F) | 42 years | 24 of 100 (Routine) |
| 12 March 1983 | Medicine Hat A, CA | daily rain | 8.6 mm (0.34 in) | 3.5 mm (0.14 in) | 89 years | 20 of 100 (Routine) |
| 10 March 1983 | Medicine Hat A, CA | daily high max | 19.7 C (67.5 F) | 1.9 C (3.4 F) | 66 years | 32 of 100 (Routine) |
| 24 February 1983 | Medicine Hat A, CA | daily high min | 2.2 C (36.0 F) | 1.1 C (2.0 F) | 24 years | 18 of 100 (Routine) |
| 14 February 1983 | Medicine Hat A, CA | daily high min | 1.4 C (34.5 F) | 0.3 C (0.5 F) | 81 years | 34 of 100 (Routine) |
Climate Trend
95 complete years, 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.
| 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| 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)
| 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)
| 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)
| 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)
| 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)
| 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 frostAcross 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.
| 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 1983A 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.
| 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 suspected2 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).
| 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
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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-17).