Winnipeg St Johns Coll Weather Records (CA005023243)
Record envelope, standing records and threshold days for Winnipeg St Johns Coll (CA005023243), Manitoba, Canada, with 67 years of record.
Key Facts for Winnipeg St Johns Coll
- Winnipeg St Johns Coll (CA005023243) is a weather station in Manitoba, Canada at 49.88 latitude and -97.12 longitude, 232 m (761 ft) above sea level.
- The station reports from 1872 to 1938, 67 years of record.
- 1,464 records set at Winnipeg St Johns Coll still stand.
- Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
- Winnipeg St Johns Coll set a daily record high maximum temperature of 33.9 C (93.0 F) on 29 July 1938.
About the Station
- Location: Manitoba, Canada, 49.88 latitude, -97.12 longitude.
- Elevation: 232 m (761 ft).
- Period of record: 1872 to 1938, 67 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 | 5.6 C (42.1 F) | -44.4 C (-47.9 F) | n/a | n/a |
| Feb | 8.3 C (46.9 F) | -44.4 C (-47.9 F) | n/a | n/a |
| Mar | 22.8 C (73.0 F) | -38.9 C (-38.0 F) | n/a | n/a |
| Apr | 32.2 C (90.0 F) | -27.8 C (-18.0 F) | n/a | n/a |
| May | 37.8 C (100.0 F) | -11.7 C (10.9 F) | n/a | n/a |
| Jun | 38.3 C (100.9 F) | -6.1 C (21.0 F) | n/a | n/a |
| Jul | 42.2 C (108.0 F) | 1.7 C (35.1 F) | n/a | n/a |
| Aug | 39.4 C (102.9 F) | -1.1 C (30.0 F) | n/a | n/a |
| Sep | 37.2 C (99.0 F) | -8.3 C (17.1 F) | n/a | n/a |
| Oct | 30.0 C (86.0 F) | -20.6 C (-5.1 F) | n/a | n/a |
| Nov | 21.7 C (71.1 F) | -36.7 C (-34.1 F) | n/a | n/a |
| Dec | 9.4 C (48.9 F) | -47.8 C (-54.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1872 | 11 |
| 1873 | 22 |
| 1874 | 20 |
| 1875 | 25 |
| 1876 | 24 |
| 1877 | 30 |
| 1878 | 24 |
| 1879 | 31 |
| 1880 | 26 |
| 1881 | 18 |
| 1882 | 18 |
| 1883 | 21 |
| 1884 | 30 |
| 1885 | 27 |
| 1886 | 28 |
| 1887 | 32 |
| 1888 | 34 |
| 1889 | 18 |
| 1890 | 23 |
| 1891 | 28 |
| 1892 | 23 |
| 1893 | 26 |
| 1894 | 20 |
| 1895 | 17 |
| 1896 | 17 |
| 1897 | 25 |
| 1898 | 4 |
| 1899 | 26 |
| 1900 | 21 |
| 1901 | 16 |
| 1902 | 27 |
| 1903 | 25 |
| 1904 | 14 |
| 1905 | 14 |
| 1906 | 22 |
| 1907 | 23 |
| 1908 | 20 |
| 1909 | 16 |
| 1910 | 27 |
| 1911 | 13 |
| 1912 | 11 |
| 1913 | 18 |
| 1914 | 32 |
| 1915 | 20 |
| 1916 | 18 |
| 1917 | 16 |
| 1918 | 26 |
| 1919 | 24 |
| 1920 | 12 |
| 1921 | 11 |
| 1922 | 14 |
| 1923 | 39 |
| 1924 | 27 |
| 1925 | 14 |
| 1926 | 18 |
| 1927 | 17 |
| 1928 | 31 |
| 1929 | 20 |
| 1930 | 25 |
| 1931 | 41 |
| 1932 | 29 |
| 1933 | 11 |
| 1934 | 26 |
| 1935 | 21 |
| 1936 | 36 |
| 1937 | 10 |
| 1938 | 11 |
All-Time Record Progression
6 new records| Date | Kind | Detail |
|---|---|---|
| 1913-06-29 | Record high minimum temperature | Record high minimum temperature 23.9 C (75.0 F) |
| 1917-07-28 | Record high minimum temperature | Record high minimum temperature 24.4 C (75.9 F) |
| 1935-03-04 | Record daily snowfall | Record daily snowfall 38.1 cm (15.0 in) |
| 1936-07-07 | Record high maximum temperature | Record high maximum temperature 41.1 C (106.0 F) |
| 1936-07-11 | Record high maximum temperature | Record high maximum temperature 42.2 C (108.0 F) |
| 1936-07-12 | Record high minimum temperature | Record high minimum temperature 28.3 C (82.9 F) |
Wettest Day of Each Month
Jun: 152.4 mm (6.0 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 31.8 mm (1.3 in) | 2 January 1907 |
| Feb | 25.4 mm (1.0 in) | 16 February 1921 |
| Mar | 38.1 mm (1.5 in) | 4 March 1935 |
| Apr | 43.7 mm (1.7 in) | 13 April 1911 |
| May | 71.1 mm (2.8 in) | 11 May 1911 |
| Jun | 152.4 mm (6.0 in) | 26 June 1901 |
| Jul | 133.6 mm (5.3 in) | 12 July 1914 |
| Aug | 84.6 mm (3.3 in) | 16 August 1884 |
| Sep | 81.5 mm (3.2 in) | 6 September 1886 |
| Oct | 61.0 mm (2.4 in) | 10 October 1898 |
| Nov | 44.5 mm (1.8 in) | 17 November 1918 |
| Dec | 30.5 mm (1.2 in) | 26 December 1916 |
Period of Record Coverage
1872 to 1938| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1872 | 243 | 66% | No |
| 1873 | 365 | 100% | Yes |
| 1874 | 331 | 91% | Yes |
| 1875 | 365 | 100% | Yes |
| 1876 | 365 | 100% | Yes |
| 1877 | 363 | 99% | Yes |
| 1878 | 360 | 99% | Yes |
| 1879 | 363 | 99% | Yes |
| 1880 | 366 | 100% | Yes |
| 1881 | 365 | 100% | Yes |
| 1882 | 365 | 100% | Yes |
| 1883 | 365 | 100% | Yes |
| 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 | 365 | 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 | 366 | 100% | Yes |
| 1909 | 365 | 100% | Yes |
| 1910 | 365 | 100% | Yes |
| 1911 | 365 | 100% | 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 | 364 | 100% | Yes |
| 1931 | 365 | 100% | Yes |
| 1932 | 366 | 100% | Yes |
| 1933 | 365 | 100% | Yes |
| 1934 | 365 | 100% | Yes |
| 1935 | 365 | 100% | Yes |
| 1936 | 366 | 100% | Yes |
| 1937 | 365 | 100% | Yes |
| 1938 | 212 | 58% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 29 July 1938 | Winnipeg St Johns Coll, CA | daily high max | 33.9 C (93.0 F) | 0.6 C (1.1 F) | 61 years | 25 of 100 (Routine) |
| 18 July 1938 | Winnipeg St Johns Coll, CA | daily rain | 46.5 mm (1.8 in) | 17.8 mm (0.7 in) | 59 years | 38 of 100 (Notable) |
| 4 July 1938 | Winnipeg St Johns Coll, CA | daily high min | 20.6 C (69.1 F) | 1.2 C (2.2 F) | 56 years | 26 of 100 (Routine) |
| 15 June 1938 | Winnipeg St Johns Coll, CA | daily low max (Tie) | 13.3 C (55.9 F) | tie | 32 years | 3 of 100 (Routine) |
| 8 June 1938 | Winnipeg St Johns Coll, CA | daily low min (Tie) | -1.1 C (30.0 F) | tie | 38 years | 4 of 100 (Routine) |
| 6 May 1938 | Winnipeg St Johns Coll, CA | daily snowfall | 5.1 cm (2.0 in) | 2.6 cm (1.0 in) | 52 years | 27 of 100 (Routine) |
| 6 May 1938 | Winnipeg St Johns Coll, CA | daily low max (Tie) | -0.6 C (30.9 F) | tie | 52 years | 5 of 100 (Routine) |
| 5 May 1938 | Winnipeg St Johns Coll, CA | daily rain | 13.0 mm (0.5 in) | 0.3 mm (0.01 in) | 60 years | 20 of 100 (Routine) |
| 5 May 1938 | Winnipeg St Johns Coll, CA | daily snowfall | 13.0 cm (5.1 in) | 0.8 cm (0.3 in) | 7 years | 9 of 100 (Routine) |
| 20 April 1938 | Winnipeg St Johns Coll, CA | daily snowfall | 11.7 cm (4.6 in) | 4.1 cm (1.6 in) | 44 years | 28 of 100 (Routine) |
| 29 March 1938 | Winnipeg St Johns Coll, CA | daily high min | 5.6 C (42.1 F) | 3.4 C (6.1 F) | 45 years | 22 of 100 (Routine) |
| 28 March 1938 | Winnipeg St Johns Coll, CA | daily high max | 18.9 C (66.0 F) | 1.7 C (3.1 F) | 28 years | 16 of 100 (Routine) |
| 28 March 1938 | Winnipeg St Johns Coll, CA | daily high min (Tie) | 2.8 C (37.0 F) | tie | 20 years | 3 of 100 (Routine) |
| 27 March 1938 | Winnipeg St Johns Coll, CA | daily high max | 16.7 C (62.1 F) | 2.8 C (5.0 F) | 32 years | 18 of 100 (Routine) |
| 20 March 1938 | Winnipeg St Johns Coll, CA | daily high min | 0.6 C (33.1 F) | 0.6 C (1.1 F) | 59 years | 23 of 100 (Routine) |
| 19 March 1938 | Winnipeg St Johns Coll, CA | daily high max | 13.9 C (57.0 F) | 1.1 C (2.0 F) | 48 years | 21 of 100 (Routine) |
| 18 March 1938 | Winnipeg St Johns Coll, CA | daily high min (Tie) | 0.0 C (32.0 F) | tie | 28 years | 3 of 100 (Routine) |
| 17 March 1938 | Winnipeg St Johns Coll, CA | daily high min | 2.2 C (36.0 F) | 2.2 C (4.0 F) | 55 years | 24 of 100 (Routine) |
| 17 March 1938 | Winnipeg St Johns Coll, CA | daily high max | 12.8 C (55.0 F) | 0.6 C (1.1 F) | 8 years | 8 of 100 (Routine) |
| 26 February 1938 | Winnipeg St Johns Coll, CA | monthly high max | 8.3 C (46.9 F) | 0.5 C (0.9 F) | 52 years | 31 of 100 (Routine) |
Climate Trend
64 complete years, 1873 to 1937| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1873 | 0.5 C | -1.24 C |
| 1875 | -1.3 C | -3.00 C |
| 1876 | -0.7 C | -2.41 C |
| 1877 | 2.4 C | +0.67 C |
| 1878 | 4.7 C | +2.99 C |
| 1879 | 0.3 C | -1.42 C |
| 1880 | -0.5 C | -2.20 C |
| 1881 | 0.6 C | -1.18 C |
| 1882 | 1.0 C | -0.72 C |
| 1883 | -1.7 C | -3.48 C |
| 1884 | -1.1 C | -2.83 C |
| 1885 | -0.2 C | -1.91 C |
| 1886 | 0.7 C | -1.07 C |
| 1887 | -0.6 C | -2.32 C |
| 1888 | 0.1 C | -1.64 C |
| 1889 | 2.2 C | +0.50 C |
| 1890 | 0.6 C | -1.17 C |
| 1891 | 1.2 C | -0.51 C |
| 1892 | 0.4 C | -1.31 C |
| 1893 | -0.9 C | -2.66 C |
| 1894 | 2.5 C | +0.80 C |
| 1895 | 1.1 C | -0.63 C |
| 1896 | 0.8 C | -0.93 C |
| 1897 | 1.5 C | -0.23 C |
| 1898 | 1.8 C | +0.07 C |
| 1899 | 1.2 C | -0.52 C |
| 1900 | 2.7 C | +0.97 C |
| 1901 | 2.4 C | +0.69 C |
| 1902 | 3.1 C | +1.41 C |
| 1903 | 1.8 C | +0.02 C |
| 1904 | 1.2 C | -0.55 C |
| 1905 | 2.3 C | +0.57 C |
| 1906 | 3.0 C | +1.23 C |
| 1907 | 0.8 C | -0.93 C |
| 1908 | 3.1 C | +1.33 C |
| 1909 | 1.8 C | +0.11 C |
| 1910 | 3.4 C | +1.63 C |
| 1911 | 2.3 C | +0.61 C |
| 1912 | 2.3 C | +0.57 C |
| 1913 | 2.4 C | +0.67 C |
| 1914 | 2.8 C | +1.07 C |
| 1915 | 3.6 C | +1.90 C |
| 1916 | 1.3 C | -0.48 C |
| 1917 | 0.9 C | -0.87 C |
| 1918 | 2.8 C | +1.08 C |
| 1919 | 2.5 C | +0.76 C |
| 1920 | 3.1 C | +1.33 C |
| 1921 | 3.6 C | +1.89 C |
| 1922 | 3.7 C | +2.00 C |
| 1923 | 3.2 C | +1.48 C |
| 1924 | 1.8 C | +0.06 C |
| 1925 | 2.5 C | +0.79 C |
| 1926 | 2.4 C | +0.66 C |
| 1927 | 2.3 C | +0.57 C |
| 1928 | 3.9 C | +2.12 C |
| 1929 | 1.7 C | -0.03 C |
| 1930 | 3.3 C | +1.58 C |
| 1931 | 5.3 C | +3.58 C |
| 1932 | 2.1 C | +0.33 C |
| 1933 | 1.6 C | -0.13 C |
| 1934 | 2.6 C | +0.83 C |
| 1935 | 1.7 C | -0.07 C |
| 1936 | 0.9 C | -0.83 C |
| 1937 | 1.9 C | +0.15 C |
The annual mean temperature here has risen by 0.4 C (0.3 to 0.6) per decade over 1873 to 1937. In Fahrenheit: 0.8 F (0.5 to 1.1) per decade. The slope is a straight line fitted to 64 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.4 C (0.3 to 0.6) per decade | 0.8 F (0.5 to 1.1) per decade | 1873 to 1937 | 64 | Rise |
| Mean daily maximum | 0.2 C (0.1 to 0.4) per decade | 0.4 F (0.1 to 0.7) per decade | 1873 to 1937 | 64 | Rise |
| Mean daily minimum | 0.6 C (0.5 to 0.8) per decade | 1.2 F (0.9 to 1.5) per decade | 1873 to 1937 | 64 | 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
1872 to 1938| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 42.2 C (108.0 F) | 1936 | 34.4 C (93.9 F) | 67 |
| Coldest night (TNn) | -47.8 C (-54.0 F) | 1879 | -39.4 C (-38.9 F) | 67 |
| Wettest day (Rx1day) | 152.4 mm (6.0 in) | 1901 | 40.4 mm (1.6 in) | 67 |
| Wettest five days (Rx5day) | 155.9 mm (6.1 in) | 1901 | 63.3 mm (2.5 in) | 67 |
| Longest dry spell (CDD) | 53 days | 1917 | 25 days | 67 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1872 | 30.0 C (86.0 F) |
| 1873 | 34.4 C (93.9 F) |
| 1874 | 35.6 C (96.1 F) |
| 1875 | 34.4 C (93.9 F) |
| 1876 | 36.7 C (98.1 F) |
| 1877 | 33.3 C (91.9 F) |
| 1878 | 33.9 C (93.0 F) |
| 1879 | 32.2 C (90.0 F) |
| 1880 | 31.1 C (88.0 F) |
| 1881 | 35.0 C (95.0 F) |
| 1882 | 32.2 C (90.0 F) |
| 1883 | 34.4 C (93.9 F) |
| 1884 | 31.7 C (89.1 F) |
| 1885 | 32.2 C (90.0 F) |
| 1886 | 39.4 C (102.9 F) |
| 1887 | 33.9 C (93.0 F) |
| 1888 | 36.1 C (97.0 F) |
| 1889 | 36.1 C (97.0 F) |
| 1890 | 36.1 C (97.0 F) |
| 1891 | 34.4 C (93.9 F) |
| 1892 | 32.2 C (90.0 F) |
| 1893 | 33.9 C (93.0 F) |
| 1894 | 35.6 C (96.1 F) |
| 1895 | 31.1 C (88.0 F) |
| 1896 | 32.8 C (91.0 F) |
| 1897 | 33.9 C (93.0 F) |
| 1898 | 33.3 C (91.9 F) |
| 1899 | 31.7 C (89.1 F) |
| 1900 | 38.3 C (100.9 F) |
| 1901 | 33.9 C (93.0 F) |
| 1902 | 32.8 C (91.0 F) |
| 1903 | 34.4 C (93.9 F) |
| 1904 | 31.7 C (89.1 F) |
| 1905 | 30.6 C (87.1 F) |
| 1906 | 37.2 C (99.0 F) |
| 1907 | 32.2 C (90.0 F) |
| 1908 | 33.9 C (93.0 F) |
| 1909 | 33.9 C (93.0 F) |
| 1910 | 37.2 C (99.0 F) |
| 1911 | 31.7 C (89.1 F) |
| 1912 | 36.7 C (98.1 F) |
| 1913 | 32.8 C (91.0 F) |
| 1914 | 35.0 C (95.0 F) |
| 1915 | 33.9 C (93.0 F) |
| 1916 | 35.0 C (95.0 F) |
| 1917 | 34.4 C (93.9 F) |
| 1918 | 34.4 C (93.9 F) |
| 1919 | 35.0 C (95.0 F) |
| 1920 | 35.0 C (95.0 F) |
| 1921 | 34.4 C (93.9 F) |
| 1922 | 35.6 C (96.1 F) |
| 1923 | 35.6 C (96.1 F) |
| 1924 | 32.8 C (91.0 F) |
| 1925 | 33.9 C (93.0 F) |
| 1926 | 36.7 C (98.1 F) |
| 1927 | 32.2 C (90.0 F) |
| 1928 | 35.6 C (96.1 F) |
| 1929 | 37.8 C (100.0 F) |
| 1930 | 34.4 C (93.9 F) |
| 1931 | 37.8 C (100.0 F) |
| 1932 | 33.3 C (91.9 F) |
| 1933 | 36.1 C (97.0 F) |
| 1934 | 37.8 C (100.0 F) |
| 1935 | 35.0 C (95.0 F) |
| 1936 | 42.2 C (108.0 F) |
| 1937 | 36.1 C (97.0 F) |
| 1938 | 33.9 C (93.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1872 | -41.7 C (-43.1 F) |
| 1873 | -39.4 C (-38.9 F) |
| 1874 | -42.2 C (-44.0 F) |
| 1875 | -43.3 C (-45.9 F) |
| 1876 | -42.2 C (-44.0 F) |
| 1877 | -44.4 C (-47.9 F) |
| 1878 | -31.1 C (-24.0 F) |
| 1879 | -47.8 C (-54.0 F) |
| 1880 | -41.1 C (-42.0 F) |
| 1881 | -40.0 C (-40.0 F) |
| 1882 | -40.0 C (-40.0 F) |
| 1883 | -43.9 C (-47.0 F) |
| 1884 | -42.8 C (-45.0 F) |
| 1885 | -43.3 C (-45.9 F) |
| 1886 | -42.8 C (-45.0 F) |
| 1887 | -41.7 C (-43.1 F) |
| 1888 | -43.3 C (-45.9 F) |
| 1889 | -41.7 C (-43.1 F) |
| 1890 | -39.4 C (-38.9 F) |
| 1891 | -37.2 C (-35.0 F) |
| 1892 | -42.2 C (-44.0 F) |
| 1893 | -44.4 C (-47.9 F) |
| 1894 | -43.3 C (-45.9 F) |
| 1895 | -43.3 C (-45.9 F) |
| 1896 | -42.8 C (-45.0 F) |
| 1897 | -40.6 C (-41.1 F) |
| 1898 | -37.2 C (-35.0 F) |
| 1899 | -43.9 C (-47.0 F) |
| 1900 | -37.2 C (-35.0 F) |
| 1901 | -38.3 C (-36.9 F) |
| 1902 | -37.8 C (-36.0 F) |
| 1903 | -38.3 C (-36.9 F) |
| 1904 | -41.1 C (-42.0 F) |
| 1905 | -39.4 C (-38.9 F) |
| 1906 | -37.8 C (-36.0 F) |
| 1907 | -39.4 C (-38.9 F) |
| 1908 | -37.8 C (-36.0 F) |
| 1909 | -42.8 C (-45.0 F) |
| 1910 | -41.1 C (-42.0 F) |
| 1911 | -38.3 C (-36.9 F) |
| 1912 | -40.6 C (-41.1 F) |
| 1913 | -35.0 C (-31.0 F) |
| 1914 | -40.0 C (-40.0 F) |
| 1915 | -38.3 C (-36.9 F) |
| 1916 | -40.6 C (-41.1 F) |
| 1917 | -38.9 C (-38.0 F) |
| 1918 | -38.3 C (-36.9 F) |
| 1919 | -34.4 C (-29.9 F) |
| 1920 | -38.3 C (-36.9 F) |
| 1921 | -36.1 C (-33.0 F) |
| 1922 | -38.9 C (-38.0 F) |
| 1923 | -37.2 C (-35.0 F) |
| 1924 | -35.0 C (-31.0 F) |
| 1925 | -35.0 C (-31.0 F) |
| 1926 | -33.9 C (-29.0 F) |
| 1927 | -35.6 C (-32.1 F) |
| 1928 | -31.7 C (-25.1 F) |
| 1929 | -34.4 C (-29.9 F) |
| 1930 | -37.2 C (-35.0 F) |
| 1931 | -29.4 C (-20.9 F) |
| 1932 | -36.7 C (-34.1 F) |
| 1933 | -41.1 C (-42.0 F) |
| 1934 | -39.4 C (-38.9 F) |
| 1935 | -41.7 C (-43.1 F) |
| 1936 | -41.7 C (-43.1 F) |
| 1937 | -38.3 C (-36.9 F) |
| 1938 | -40.6 C (-41.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1872 | 36.8 mm (1.4 in) |
| 1873 | 62.2 mm (2.4 in) |
| 1874 | 40.4 mm (1.6 in) |
| 1875 | 29.2 mm (1.1 in) |
| 1876 | 41.9 mm (1.6 in) |
| 1877 | 44.2 mm (1.7 in) |
| 1878 | 36.1 mm (1.4 in) |
| 1879 | 47.0 mm (1.9 in) |
| 1880 | 36.1 mm (1.4 in) |
| 1881 | 25.1 mm (1.0 in) |
| 1882 | 61.5 mm (2.4 in) |
| 1883 | 49.8 mm (2.0 in) |
| 1884 | 84.6 mm (3.3 in) |
| 1885 | 34.8 mm (1.4 in) |
| 1886 | 81.5 mm (3.2 in) |
| 1887 | 25.1 mm (1.0 in) |
| 1888 | 31.8 mm (1.3 in) |
| 1889 | 30.7 mm (1.2 in) |
| 1890 | 58.7 mm (2.3 in) |
| 1891 | 46.2 mm (1.8 in) |
| 1892 | 43.2 mm (1.7 in) |
| 1893 | 65.0 mm (2.6 in) |
| 1894 | 28.2 mm (1.1 in) |
| 1895 | 26.4 mm (1.0 in) |
| 1896 | 36.6 mm (1.4 in) |
| 1897 | 59.4 mm (2.3 in) |
| 1898 | 61.0 mm (2.4 in) |
| 1899 | 40.1 mm (1.6 in) |
| 1900 | 47.8 mm (1.9 in) |
| 1901 | 152.4 mm (6.0 in) |
| 1902 | 28.2 mm (1.1 in) |
| 1903 | 39.1 mm (1.5 in) |
| 1904 | 67.1 mm (2.6 in) |
| 1905 | 33.0 mm (1.3 in) |
| 1906 | 43.4 mm (1.7 in) |
| 1907 | 40.9 mm (1.6 in) |
| 1908 | 34.0 mm (1.3 in) |
| 1909 | 42.4 mm (1.7 in) |
| 1910 | 42.4 mm (1.7 in) |
| 1911 | 71.1 mm (2.8 in) |
| 1912 | 40.4 mm (1.6 in) |
| 1913 | 81.8 mm (3.2 in) |
| 1914 | 133.6 mm (5.3 in) |
| 1915 | 23.4 mm (0.9 in) |
| 1916 | 33.3 mm (1.3 in) |
| 1917 | 21.1 mm (0.8 in) |
| 1918 | 44.5 mm (1.8 in) |
| 1919 | 46.0 mm (1.8 in) |
| 1920 | 26.2 mm (1.0 in) |
| 1921 | 39.1 mm (1.5 in) |
| 1922 | 58.7 mm (2.3 in) |
| 1923 | 38.1 mm (1.5 in) |
| 1924 | 38.1 mm (1.5 in) |
| 1925 | 30.5 mm (1.2 in) |
| 1926 | 32.8 mm (1.3 in) |
| 1927 | 35.1 mm (1.4 in) |
| 1928 | 40.9 mm (1.6 in) |
| 1929 | 28.4 mm (1.1 in) |
| 1930 | 43.9 mm (1.7 in) |
| 1931 | 30.2 mm (1.2 in) |
| 1932 | 24.1 mm (0.9 in) |
| 1933 | 48.5 mm (1.9 in) |
| 1934 | 49.0 mm (1.9 in) |
| 1935 | 38.6 mm (1.5 in) |
| 1936 | 43.7 mm (1.7 in) |
| 1937 | 33.5 mm (1.3 in) |
| 1938 | 46.5 mm (1.8 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1872 | 62.0 mm (2.4 in) |
| 1873 | 71.6 mm (2.8 in) |
| 1874 | 84.4 mm (3.3 in) |
| 1875 | 59.5 mm (2.3 in) |
| 1876 | 61.5 mm (2.4 in) |
| 1877 | 114.3 mm (4.5 in) |
| 1878 | 72.1 mm (2.8 in) |
| 1879 | 110.8 mm (4.4 in) |
| 1880 | 71.0 mm (2.8 in) |
| 1881 | 71.9 mm (2.8 in) |
| 1882 | 101.7 mm (4.0 in) |
| 1883 | 60.7 mm (2.4 in) |
| 1884 | 89.7 mm (3.5 in) |
| 1885 | 39.9 mm (1.6 in) |
| 1886 | 95.5 mm (3.8 in) |
| 1887 | 32.9 mm (1.3 in) |
| 1888 | 53.2 mm (2.1 in) |
| 1889 | 39.6 mm (1.6 in) |
| 1890 | 87.9 mm (3.5 in) |
| 1891 | 86.6 mm (3.4 in) |
| 1892 | 50.5 mm (2.0 in) |
| 1893 | 90.6 mm (3.6 in) |
| 1894 | 51.3 mm (2.0 in) |
| 1895 | 40.7 mm (1.6 in) |
| 1896 | 99.0 mm (3.9 in) |
| 1897 | 86.9 mm (3.4 in) |
| 1898 | 84.1 mm (3.3 in) |
| 1899 | 49.0 mm (1.9 in) |
| 1900 | 65.2 mm (2.6 in) |
| 1901 | 155.9 mm (6.1 in) |
| 1902 | 61.9 mm (2.4 in) |
| 1903 | 54.9 mm (2.2 in) |
| 1904 | 85.3 mm (3.4 in) |
| 1905 | 50.8 mm (2.0 in) |
| 1906 | 85.4 mm (3.4 in) |
| 1907 | 63.8 mm (2.5 in) |
| 1908 | 51.1 mm (2.0 in) |
| 1909 | 76.2 mm (3.0 in) |
| 1910 | 60.7 mm (2.4 in) |
| 1911 | 106.1 mm (4.2 in) |
| 1912 | 64.6 mm (2.5 in) |
| 1913 | 83.4 mm (3.3 in) |
| 1914 | 144.6 mm (5.7 in) |
| 1915 | 44.7 mm (1.8 in) |
| 1916 | 68.6 mm (2.7 in) |
| 1917 | 41.4 mm (1.6 in) |
| 1918 | 50.9 mm (2.0 in) |
| 1919 | 68.9 mm (2.7 in) |
| 1920 | 48.6 mm (1.9 in) |
| 1921 | 54.8 mm (2.2 in) |
| 1922 | 63.3 mm (2.5 in) |
| 1923 | 59.0 mm (2.3 in) |
| 1924 | 59.4 mm (2.3 in) |
| 1925 | 50.3 mm (2.0 in) |
| 1926 | 70.3 mm (2.8 in) |
| 1927 | 55.2 mm (2.2 in) |
| 1928 | 69.9 mm (2.8 in) |
| 1929 | 53.5 mm (2.1 in) |
| 1930 | 70.5 mm (2.8 in) |
| 1931 | 61.5 mm (2.4 in) |
| 1932 | 42.2 mm (1.7 in) |
| 1933 | 76.4 mm (3.0 in) |
| 1934 | 64.2 mm (2.5 in) |
| 1935 | 55.9 mm (2.2 in) |
| 1936 | 45.0 mm (1.8 in) |
| 1937 | 40.1 mm (1.6 in) |
| 1938 | 51.3 mm (2.0 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1872 | 22 days |
| 1873 | 27 days |
| 1874 | 19 days |
| 1875 | 30 days |
| 1876 | 32 days |
| 1877 | 34 days |
| 1878 | 30 days |
| 1879 | 21 days |
| 1880 | 29 days |
| 1881 | 41 days |
| 1882 | 34 days |
| 1883 | 24 days |
| 1884 | 20 days |
| 1885 | 24 days |
| 1886 | 32 days |
| 1887 | 15 days |
| 1888 | 27 days |
| 1889 | 25 days |
| 1890 | 20 days |
| 1891 | 25 days |
| 1892 | 30 days |
| 1893 | 27 days |
| 1894 | 29 days |
| 1895 | 31 days |
| 1896 | 18 days |
| 1897 | 21 days |
| 1898 | 23 days |
| 1899 | 28 days |
| 1900 | 24 days |
| 1901 | 35 days |
| 1902 | 25 days |
| 1903 | 23 days |
| 1904 | 34 days |
| 1905 | 27 days |
| 1906 | 31 days |
| 1907 | 23 days |
| 1908 | 22 days |
| 1909 | 17 days |
| 1910 | 23 days |
| 1911 | 25 days |
| 1912 | 28 days |
| 1913 | 26 days |
| 1914 | 20 days |
| 1915 | 33 days |
| 1916 | 20 days |
| 1917 | 53 days |
| 1918 | 14 days |
| 1919 | 20 days |
| 1920 | 23 days |
| 1921 | 15 days |
| 1922 | 29 days |
| 1923 | 22 days |
| 1924 | 38 days |
| 1925 | 28 days |
| 1926 | 24 days |
| 1927 | 23 days |
| 1928 | 32 days |
| 1929 | 21 days |
| 1930 | 29 days |
| 1931 | 27 days |
| 1932 | 18 days |
| 1933 | 24 days |
| 1934 | 24 days |
| 1935 | 26 days |
| 1936 | 36 days |
| 1937 | 20 days |
| 1938 | 39 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
64 years with a frostAcross 64 years with a frost, the median last spring frost at Winnipeg St Johns Coll falls on 25 May and the median first autumn frost on 14 September, which leaves a median of 113 days between them.
In 1908 to 1937 the median growing season was 121 days. That is 13 days more than in 1873 to 1903.
Fitted over all years, the growing season changes by +2.4 days per decade at this station.
| Measure | Median, all years | Earliest period (1873 to 1903) | Recent period (1908 to 1937) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 25 May | 27 May | 23 May | 4 days earlier | -0.4 days per decade |
| First autumn frost | 14 September | 12 September | 21 September | 9 days later | +2.0 days per decade |
| Growing days | 113 days | 108 days | 121 days | 13 days more | +2.4 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
64 years, 1873 to 1937A day with at least 39.5 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 138.4 mm (5.4 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 39.5 mm (1.6 in) | |
| 5 years | 55.7 mm (2.2 in) | |
| 10 years | 69.6 mm (2.7 in) | |
| 25 years | 92.0 mm (3.6 in) | |
| 50 years | 113.0 mm (4.4 in) | |
| 100 years | 138.4 mm (5.4 in) | Longer than the 64 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, 64 years of values from 1873 to 1937.
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: 152.4 mm (6.0 in) in 1901; 133.6 mm (5.3 in) in 1914; 84.6 mm (3.3 in) in 1884.
Station Changes
2 suspected2 changes were suspected in the annual mean temperature of Winnipeg St Johns Coll, at 1907 and 1932. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1907 ran 0.6 C (1.1 F) higher than in the years before (likely change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1932 ran 0.7 C (1.3 F) lower than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1907 | +0.6 | +1.1 | likely | 5 |
| 1932 | -0.7 | -1.3 | 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-14).