Macdonald College Weather Records (CA007024400)
Record envelope, standing records and threshold days for Macdonald College (CA007024400), Quebec, Canada, with 71 years of record.
Key Facts for Macdonald College
- Macdonald College (CA007024400) is a weather station in Quebec, Canada at 45.42 latitude and -73.93 longitude, 27 m (89 ft) above sea level.
- The station reports from 1906 to 1976, 71 years of record.
- 1,464 records set at Macdonald College still stand.
- Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
- Macdonald College set a daily record precipitation of 25.4 mm (1.0 in) on 31 March 1976.
About the Station
- Location: Quebec, Canada, 45.42 latitude, -73.93 longitude.
- Elevation: 27 m (89 ft).
- Period of record: 1906 to 1976, 71 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 | 14.4 C (57.9 F) | -38.3 C (-36.9 F) | n/a | n/a |
| Feb | 12.8 C (55.0 F) | -36.7 C (-34.1 F) | n/a | n/a |
| Mar | 25.6 C (78.1 F) | -33.3 C (-27.9 F) | n/a | n/a |
| Apr | 30.6 C (87.1 F) | -17.2 C (1.0 F) | n/a | n/a |
| May | 34.4 C (93.9 F) | -3.9 C (25.0 F) | n/a | n/a |
| Jun | 35.0 C (95.0 F) | 0.0 C (32.0 F) | n/a | n/a |
| Jul | 36.7 C (98.1 F) | 5.6 C (42.1 F) | n/a | n/a |
| Aug | 36.7 C (98.1 F) | 3.3 C (37.9 F) | n/a | n/a |
| Sep | 32.2 C (90.0 F) | -2.2 C (28.0 F) | n/a | n/a |
| Oct | 28.9 C (84.0 F) | -7.8 C (18.0 F) | n/a | n/a |
| Nov | 25.0 C (77.0 F) | -22.2 C (-8.0 F) | n/a | n/a |
| Dec | 16.1 C (61.0 F) | -34.4 C (-29.9 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1906 | 8 |
| 1907 | 22 |
| 1908 | 32 |
| 1909 | 15 |
| 1910 | 21 |
| 1911 | 55 |
| 1912 | 31 |
| 1913 | 27 |
| 1914 | 39 |
| 1915 | 8 |
| 1916 | 32 |
| 1917 | 28 |
| 1918 | 20 |
| 1919 | 25 |
| 1920 | 29 |
| 1921 | 20 |
| 1922 | 19 |
| 1923 | 32 |
| 1924 | 13 |
| 1925 | 25 |
| 1926 | 21 |
| 1927 | 14 |
| 1928 | 17 |
| 1929 | 17 |
| 1930 | 28 |
| 1931 | 16 |
| 1932 | 21 |
| 1933 | 28 |
| 1934 | 23 |
| 1935 | 13 |
| 1936 | 29 |
| 1937 | 11 |
| 1938 | 16 |
| 1939 | 6 |
| 1940 | 20 |
| 1941 | 18 |
| 1942 | 29 |
| 1943 | 24 |
| 1944 | 17 |
| 1945 | 33 |
| 1946 | 26 |
| 1947 | 28 |
| 1948 | 27 |
| 1949 | 29 |
| 1950 | 36 |
| 1951 | 18 |
| 1952 | 10 |
| 1953 | 31 |
| 1954 | 20 |
| 1955 | 10 |
| 1956 | 16 |
| 1957 | 19 |
| 1958 | 7 |
| 1959 | 17 |
| 1960 | 11 |
| 1961 | 13 |
| 1962 | 16 |
| 1963 | 16 |
| 1964 | 18 |
| 1965 | 28 |
| 1966 | 25 |
| 1967 | 8 |
| 1968 | 23 |
| 1969 | 11 |
| 1970 | 18 |
| 1971 | 11 |
| 1972 | 11 |
| 1973 | 20 |
| 1974 | 16 |
| 1975 | 18 |
| 1976 | 5 |
All-Time Record Progression
1 new records| Date | Kind | Detail |
|---|---|---|
| 1957-01-15 | Record low minimum temperature | Record low minimum temperature -38.3 C (-36.9 F) |
Wettest Day of Each Month
Oct: 91.7 mm (3.6 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 56.6 mm (2.2 in) | 22 January 1957 |
| Feb | 40.6 mm (1.6 in) | 13 February 1923 |
| Mar | 38.1 mm (1.5 in) | 6 March 1920 |
| Apr | 58.2 mm (2.3 in) | 12 April 1934 |
| May | 46.7 mm (1.8 in) | 17 May 1916 |
| Jun | 74.9 mm (2.9 in) | 25 June 1957 |
| Jul | 88.1 mm (3.5 in) | 10 July 1952 |
| Aug | 76.7 mm (3.0 in) | 29 August 1949 |
| Sep | 73.4 mm (2.9 in) | 30 September 1924 |
| Oct | 91.7 mm (3.6 in) | 6 October 1932 |
| Nov | 87.1 mm (3.4 in) | 18 November 1918 |
| Dec | 50.8 mm (2.0 in) | 14 December 1920 |
Period of Record Coverage
1906 to 1976| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1906 | 153 | 42% | No |
| 1907 | 286 | 78% | No |
| 1908 | 322 | 88% | No |
| 1909 | 361 | 99% | Yes |
| 1910 | 362 | 99% | Yes |
| 1911 | 365 | 100% | Yes |
| 1912 | 364 | 99% | Yes |
| 1913 | 364 | 100% | Yes |
| 1914 | 362 | 99% | Yes |
| 1915 | 365 | 100% | Yes |
| 1916 | 366 | 100% | Yes |
| 1917 | 365 | 100% | Yes |
| 1918 | 364 | 100% | Yes |
| 1919 | 365 | 100% | Yes |
| 1920 | 364 | 99% | Yes |
| 1921 | 335 | 92% | Yes |
| 1922 | 365 | 100% | Yes |
| 1923 | 364 | 100% | Yes |
| 1924 | 366 | 100% | Yes |
| 1925 | 365 | 100% | Yes |
| 1926 | 364 | 100% | Yes |
| 1927 | 364 | 100% | Yes |
| 1928 | 366 | 100% | Yes |
| 1929 | 365 | 100% | Yes |
| 1930 | 365 | 100% | Yes |
| 1931 | 365 | 100% | Yes |
| 1932 | 366 | 100% | Yes |
| 1933 | 364 | 100% | Yes |
| 1934 | 365 | 100% | Yes |
| 1935 | 365 | 100% | Yes |
| 1936 | 366 | 100% | Yes |
| 1937 | 365 | 100% | Yes |
| 1938 | 365 | 100% | Yes |
| 1939 | 364 | 100% | Yes |
| 1940 | 365 | 100% | Yes |
| 1941 | 365 | 100% | Yes |
| 1942 | 363 | 99% | Yes |
| 1943 | 365 | 100% | Yes |
| 1944 | 366 | 100% | Yes |
| 1945 | 364 | 100% | Yes |
| 1946 | 363 | 99% | Yes |
| 1947 | 364 | 100% | Yes |
| 1948 | 366 | 100% | Yes |
| 1949 | 364 | 100% | Yes |
| 1950 | 365 | 100% | Yes |
| 1951 | 314 | 86% | No |
| 1952 | 363 | 99% | Yes |
| 1953 | 359 | 98% | Yes |
| 1954 | 361 | 99% | Yes |
| 1955 | 364 | 100% | Yes |
| 1956 | 366 | 100% | Yes |
| 1957 | 363 | 99% | 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 | 364 | 100% | Yes |
| 1966 | 361 | 99% | Yes |
| 1967 | 351 | 96% | Yes |
| 1968 | 364 | 99% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 364 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 360 | 98% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 362 | 99% | Yes |
| 1975 | 343 | 94% | Yes |
| 1976 | 76 | 21% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 31 March 1976 | Macdonald College, CA | daily rain | 25.4 mm (1.0 in) | 4.8 mm (0.19 in) | 16 years | 17 of 100 (Routine) |
| 21 March 1976 | Macdonald College, CA | daily high min | 4.4 C (39.9 F) | 1.1 C (2.0 F) | 38 years | 19 of 100 (Routine) |
| 12 March 1976 | Macdonald College, CA | daily low min (Tie) | -21.1 C (-6.0 F) | tie | 50 years | 5 of 100 (Routine) |
| 13 February 1976 | Macdonald College, CA | daily high max | 6.7 C (44.1 F) | 1.1 C (2.0 F) | 38 years | 19 of 100 (Routine) |
| 24 January 1976 | Macdonald College, CA | daily low min | -33.3 C (-27.9 F) | 6.6 C (11.9 F) | 44 years | 28 of 100 (Routine) |
| 23 January 1976 | Macdonald College, CA | daily low min | -30.6 C (-23.1 F) | 0.6 C (1.1 F) | 68 years | 27 of 100 (Routine) |
| 18 January 1976 | Macdonald College, CA | daily low max | -22.2 C (-8.0 F) | 1.6 C (2.9 F) | 50 years | 24 of 100 (Routine) |
| 11 January 1976 | Macdonald College, CA | daily low min (Tie) | -29.4 C (-20.9 F) | tie | 30 years | 4 of 100 (Routine) |
| 24 December 1975 | Macdonald College, CA | daily low max | -16.1 C (3.0 F) | 0.5 C (0.9 F) | 60 years | 25 of 100 (Routine) |
| 19 December 1975 | Macdonald College, CA | daily low min (Tie) | -26.1 C (-15.0 F) | tie | 32 years | 4 of 100 (Routine) |
| 15 December 1975 | Macdonald College, CA | daily high max | 10.0 C (50.0 F) | 2.8 C (5.0 F) | 4 years | 12 of 100 (Routine) |
| 14 December 1975 | Macdonald College, CA | daily high max | 10.0 C (50.0 F) | 5.0 C (9.0 F) | 61 years | 32 of 100 (Routine) |
| 14 November 1975 | Macdonald College, CA | daily snowfall | 12.7 cm (5.0 in) | 3.8 cm (1.5 in) | 8 years | 16 of 100 (Routine) |
| 13 November 1975 | Macdonald College, CA | daily snowfall | 15.2 cm (6.0 in) | 5.0 cm (2.0 in) | 60 years | 34 of 100 (Routine) |
| 13 November 1975 | Macdonald College, CA | daily high min | 7.2 C (45.0 F) | 1.1 C (2.0 F) | 26 years | 17 of 100 (Routine) |
| 10 November 1975 | Macdonald College, CA | daily high min (Tie) | 7.2 C (45.0 F) | tie | 26 years | 3 of 100 (Routine) |
| 8 November 1975 | Macdonald College, CA | monthly high min (Tie) | 12.2 C (54.0 F) | tie | 46 years | 7 of 100 (Routine) |
| 19 October 1975 | Macdonald College, CA | daily rain | 18.0 mm (0.7 in) | 0.7 mm (0.03 in) | 8 years | 9 of 100 (Routine) |
| 25 September 1975 | Macdonald College, CA | daily rain | 62.0 mm (2.4 in) | 45.2 mm (1.8 in) | 38 years | 58 of 100 (Notable) |
| 11 September 1975 | Macdonald College, CA | daily rain | 37.6 mm (1.5 in) | 7.4 mm (0.29 in) | 46 years | 28 of 100 (Routine) |
Climate Trend
64 complete years, 1909 to 1975| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1909 | 5.6 C | -0.44 C |
| 1910 | 6.0 C | 0.00 C |
| 1911 | 6.0 C | +0.02 C |
| 1912 | 4.8 C | -1.20 C |
| 1913 | 6.6 C | +0.59 C |
| 1914 | 4.8 C | -1.22 C |
| 1915 | 7.0 C | +0.98 C |
| 1916 | 5.7 C | -0.31 C |
| 1917 | 3.7 C | -2.30 C |
| 1918 | 5.2 C | -0.84 C |
| 1919 | 5.4 C | -0.57 C |
| 1920 | 5.6 C | -0.39 C |
| 1922 | 6.0 C | -0.04 C |
| 1923 | 5.0 C | -1.00 C |
| 1924 | 5.3 C | -0.76 C |
| 1925 | 5.4 C | -0.57 C |
| 1926 | 4.4 C | -1.58 C |
| 1927 | 6.3 C | +0.31 C |
| 1928 | 5.7 C | -0.30 C |
| 1929 | 5.3 C | -0.69 C |
| 1930 | 6.6 C | +0.56 C |
| 1931 | 7.1 C | +1.12 C |
| 1932 | 5.7 C | -0.27 C |
| 1933 | 6.1 C | +0.05 C |
| 1934 | 5.1 C | -0.89 C |
| 1935 | 5.4 C | -0.66 C |
| 1936 | 5.4 C | -0.66 C |
| 1937 | 6.8 C | +0.74 C |
| 1938 | 6.5 C | +0.44 C |
| 1939 | 5.5 C | -0.48 C |
| 1940 | 5.4 C | -0.65 C |
| 1941 | 6.7 C | +0.64 C |
| 1942 | 6.7 C | +0.64 C |
| 1943 | 5.2 C | -0.83 C |
| 1944 | 6.3 C | +0.25 C |
| 1945 | 6.3 C | +0.29 C |
| 1946 | 6.6 C | +0.54 C |
| 1947 | 6.3 C | +0.24 C |
| 1948 | 6.6 C | +0.57 C |
| 1949 | 7.6 C | +1.56 C |
| 1950 | 6.1 C | +0.13 C |
| 1952 | 6.7 C | +0.72 C |
| 1953 | 6.6 C | +0.62 C |
| 1954 | 5.9 C | -0.16 C |
| 1955 | 6.8 C | +0.77 C |
| 1956 | 5.9 C | -0.08 C |
| 1957 | 6.8 C | +0.82 C |
| 1958 | 5.7 C | -0.28 C |
| 1959 | 6.5 C | +0.51 C |
| 1960 | 6.5 C | +0.47 C |
| 1961 | 6.4 C | +0.42 C |
| 1962 | 5.5 C | -0.54 C |
| 1963 | 5.6 C | -0.38 C |
| 1964 | 6.8 C | +0.74 C |
| 1965 | 6.1 C | +0.12 C |
| 1966 | 6.6 C | +0.55 C |
| 1968 | 6.1 C | +0.06 C |
| 1969 | 6.6 C | +0.62 C |
| 1970 | 6.2 C | +0.14 C |
| 1971 | 6.2 C | +0.17 C |
| 1972 | 5.4 C | -0.65 C |
| 1973 | 7.3 C | +1.29 C |
| 1974 | 6.0 C | +0.02 C |
| 1975 | 7.1 C | +1.09 C |
The annual mean temperature here has risen by 0.2 C (0.1 to 0.2) per decade over 1909 to 1975. In Fahrenheit: 0.3 F (0.1 to 0.4) 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 | 0.2 C (0.1 to 0.2) per decade | 0.3 F (0.1 to 0.4) per decade | 1909 to 1975 | 64 | Rise |
| Mean daily maximum | 0.2 C (0.1 to 0.3) per decade | 0.3 F (0.1 to 0.5) per decade | 1909 to 1975 | 64 | Rise |
| Mean daily minimum | 0.2 C (0.1 to 0.3) per decade | 0.3 F (0.1 to 0.5) per decade | 1909 to 1975 | 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
1906 to 1976| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 36.7 C (98.1 F) | 1911 | 32.8 C (91.0 F) | 71 |
| Coldest night (TNn) | -38.3 C (-36.9 F) | 1957 | -30.0 C (-22.0 F) | 71 |
| Wettest day (Rx1day) | 91.7 mm (3.6 in) | 1932 | 42.4 mm (1.7 in) | 71 |
| Wettest five days (Rx5day) | 123.3 mm (4.9 in) | 1918 | 66.3 mm (2.6 in) | 71 |
| Longest dry spell (CDD) | 34 days | 1957 | 15 days | 71 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1906 | 31.1 C (88.0 F) |
| 1907 | 33.3 C (91.9 F) |
| 1908 | 36.1 C (97.0 F) |
| 1909 | 33.3 C (91.9 F) |
| 1910 | 33.3 C (91.9 F) |
| 1911 | 36.7 C (98.1 F) |
| 1912 | 35.0 C (95.0 F) |
| 1913 | 35.0 C (95.0 F) |
| 1914 | 32.8 C (91.0 F) |
| 1915 | 32.2 C (90.0 F) |
| 1916 | 34.4 C (93.9 F) |
| 1917 | 35.6 C (96.1 F) |
| 1918 | 33.3 C (91.9 F) |
| 1919 | 33.3 C (91.9 F) |
| 1920 | 32.2 C (90.0 F) |
| 1921 | 35.6 C (96.1 F) |
| 1922 | 31.7 C (89.1 F) |
| 1923 | 32.8 C (91.0 F) |
| 1924 | 30.6 C (87.1 F) |
| 1925 | 33.3 C (91.9 F) |
| 1926 | 30.0 C (86.0 F) |
| 1927 | 29.4 C (84.9 F) |
| 1928 | 31.1 C (88.0 F) |
| 1929 | 32.2 C (90.0 F) |
| 1930 | 32.8 C (91.0 F) |
| 1931 | 33.3 C (91.9 F) |
| 1932 | 31.7 C (89.1 F) |
| 1933 | 34.4 C (93.9 F) |
| 1934 | 32.8 C (91.0 F) |
| 1935 | 32.2 C (90.0 F) |
| 1936 | 31.1 C (88.0 F) |
| 1937 | 31.7 C (89.1 F) |
| 1938 | 33.3 C (91.9 F) |
| 1939 | 32.2 C (90.0 F) |
| 1940 | 31.1 C (88.0 F) |
| 1941 | 35.6 C (96.1 F) |
| 1942 | 35.0 C (95.0 F) |
| 1943 | 32.8 C (91.0 F) |
| 1944 | 36.7 C (98.1 F) |
| 1945 | 32.2 C (90.0 F) |
| 1946 | 34.4 C (93.9 F) |
| 1947 | 33.3 C (91.9 F) |
| 1948 | 34.4 C (93.9 F) |
| 1949 | 35.0 C (95.0 F) |
| 1950 | 31.1 C (88.0 F) |
| 1951 | 28.9 C (84.0 F) |
| 1952 | 33.3 C (91.9 F) |
| 1953 | 33.3 C (91.9 F) |
| 1954 | 30.6 C (87.1 F) |
| 1955 | 35.0 C (95.0 F) |
| 1956 | 32.2 C (90.0 F) |
| 1957 | 34.4 C (93.9 F) |
| 1958 | 30.6 C (87.1 F) |
| 1959 | 33.3 C (91.9 F) |
| 1960 | 31.7 C (89.1 F) |
| 1961 | 30.6 C (87.1 F) |
| 1962 | 31.7 C (89.1 F) |
| 1963 | 33.9 C (93.0 F) |
| 1964 | 34.4 C (93.9 F) |
| 1965 | 32.2 C (90.0 F) |
| 1966 | 33.9 C (93.0 F) |
| 1967 | 31.7 C (89.1 F) |
| 1968 | 33.3 C (91.9 F) |
| 1969 | 33.3 C (91.9 F) |
| 1970 | 32.8 C (91.0 F) |
| 1971 | 33.9 C (93.0 F) |
| 1972 | 32.8 C (91.0 F) |
| 1973 | 32.2 C (90.0 F) |
| 1974 | 31.7 C (89.1 F) |
| 1975 | 36.1 C (97.0 F) |
| 1976 | 15.0 C (59.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1906 | -27.8 C (-18.0 F) |
| 1907 | -33.9 C (-29.0 F) |
| 1908 | -36.7 C (-34.1 F) |
| 1909 | -31.1 C (-24.0 F) |
| 1910 | -30.0 C (-22.0 F) |
| 1911 | -30.0 C (-22.0 F) |
| 1912 | -31.7 C (-25.1 F) |
| 1913 | -23.9 C (-11.0 F) |
| 1914 | -33.9 C (-29.0 F) |
| 1915 | -29.4 C (-20.9 F) |
| 1916 | -27.8 C (-18.0 F) |
| 1917 | -33.3 C (-27.9 F) |
| 1918 | -33.3 C (-27.9 F) |
| 1919 | -27.2 C (-17.0 F) |
| 1920 | -33.3 C (-27.9 F) |
| 1921 | -27.2 C (-17.0 F) |
| 1922 | -27.8 C (-18.0 F) |
| 1923 | -31.1 C (-24.0 F) |
| 1924 | -33.3 C (-27.9 F) |
| 1925 | -37.2 C (-35.0 F) |
| 1926 | -28.9 C (-20.0 F) |
| 1927 | -27.8 C (-18.0 F) |
| 1928 | -27.2 C (-17.0 F) |
| 1929 | -27.2 C (-17.0 F) |
| 1930 | -28.9 C (-20.0 F) |
| 1931 | -28.3 C (-18.9 F) |
| 1932 | -28.3 C (-18.9 F) |
| 1933 | -34.4 C (-29.9 F) |
| 1934 | -33.3 C (-27.9 F) |
| 1935 | -31.1 C (-24.0 F) |
| 1936 | -26.1 C (-15.0 F) |
| 1937 | -28.3 C (-18.9 F) |
| 1938 | -33.3 C (-27.9 F) |
| 1939 | -27.2 C (-17.0 F) |
| 1940 | -28.9 C (-20.0 F) |
| 1941 | -26.1 C (-15.0 F) |
| 1942 | -31.7 C (-25.1 F) |
| 1943 | -33.3 C (-27.9 F) |
| 1944 | -27.8 C (-18.0 F) |
| 1945 | -30.6 C (-23.1 F) |
| 1946 | -30.0 C (-22.0 F) |
| 1947 | -28.3 C (-18.9 F) |
| 1948 | -32.8 C (-27.0 F) |
| 1949 | -25.6 C (-14.1 F) |
| 1950 | -28.9 C (-20.0 F) |
| 1951 | -32.2 C (-26.0 F) |
| 1952 | -27.8 C (-18.0 F) |
| 1953 | -23.9 C (-11.0 F) |
| 1954 | -28.9 C (-20.0 F) |
| 1955 | -30.0 C (-22.0 F) |
| 1956 | -25.0 C (-13.0 F) |
| 1957 | -38.3 C (-36.9 F) |
| 1958 | -30.6 C (-23.1 F) |
| 1959 | -32.2 C (-26.0 F) |
| 1960 | -28.3 C (-18.9 F) |
| 1961 | -27.2 C (-17.0 F) |
| 1962 | -32.2 C (-26.0 F) |
| 1963 | -31.1 C (-24.0 F) |
| 1964 | -27.8 C (-18.0 F) |
| 1965 | -28.3 C (-18.9 F) |
| 1966 | -30.0 C (-22.0 F) |
| 1967 | -31.1 C (-24.0 F) |
| 1968 | -30.6 C (-23.1 F) |
| 1969 | -25.0 C (-13.0 F) |
| 1970 | -27.8 C (-18.0 F) |
| 1971 | -33.3 C (-27.9 F) |
| 1972 | -32.8 C (-27.0 F) |
| 1973 | -30.0 C (-22.0 F) |
| 1974 | -30.6 C (-23.1 F) |
| 1975 | -30.0 C (-22.0 F) |
| 1976 | -33.3 C (-27.9 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1906 | 24.6 mm (1.0 in) |
| 1907 | 31.2 mm (1.2 in) |
| 1908 | 27.4 mm (1.1 in) |
| 1909 | 38.4 mm (1.5 in) |
| 1910 | 42.4 mm (1.7 in) |
| 1911 | 47.8 mm (1.9 in) |
| 1912 | 39.9 mm (1.6 in) |
| 1913 | 30.2 mm (1.2 in) |
| 1914 | 33.0 mm (1.3 in) |
| 1915 | 34.5 mm (1.4 in) |
| 1916 | 46.7 mm (1.8 in) |
| 1917 | 46.5 mm (1.8 in) |
| 1918 | 87.1 mm (3.4 in) |
| 1919 | 44.5 mm (1.8 in) |
| 1920 | 50.8 mm (2.0 in) |
| 1921 | 43.2 mm (1.7 in) |
| 1922 | 40.1 mm (1.6 in) |
| 1923 | 55.4 mm (2.2 in) |
| 1924 | 73.4 mm (2.9 in) |
| 1925 | 37.3 mm (1.5 in) |
| 1926 | 38.9 mm (1.5 in) |
| 1927 | 52.6 mm (2.1 in) |
| 1928 | 38.9 mm (1.5 in) |
| 1929 | 57.7 mm (2.3 in) |
| 1930 | 40.9 mm (1.6 in) |
| 1931 | 44.5 mm (1.8 in) |
| 1932 | 91.7 mm (3.6 in) |
| 1933 | 45.2 mm (1.8 in) |
| 1934 | 58.2 mm (2.3 in) |
| 1935 | 32.3 mm (1.3 in) |
| 1936 | 29.5 mm (1.2 in) |
| 1937 | 46.7 mm (1.8 in) |
| 1938 | 42.7 mm (1.7 in) |
| 1939 | 33.8 mm (1.3 in) |
| 1940 | 61.7 mm (2.4 in) |
| 1941 | 36.6 mm (1.4 in) |
| 1942 | 56.4 mm (2.2 in) |
| 1943 | 54.9 mm (2.2 in) |
| 1944 | 30.5 mm (1.2 in) |
| 1945 | 49.8 mm (2.0 in) |
| 1946 | 47.0 mm (1.9 in) |
| 1947 | 54.6 mm (2.1 in) |
| 1948 | 43.7 mm (1.7 in) |
| 1949 | 76.7 mm (3.0 in) |
| 1950 | 31.5 mm (1.2 in) |
| 1951 | 36.6 mm (1.4 in) |
| 1952 | 88.1 mm (3.5 in) |
| 1953 | 36.8 mm (1.4 in) |
| 1954 | 40.6 mm (1.6 in) |
| 1955 | 35.6 mm (1.4 in) |
| 1956 | 76.7 mm (3.0 in) |
| 1957 | 74.9 mm (2.9 in) |
| 1958 | 38.1 mm (1.5 in) |
| 1959 | 40.6 mm (1.6 in) |
| 1960 | 49.0 mm (1.9 in) |
| 1961 | 46.7 mm (1.8 in) |
| 1962 | 43.9 mm (1.7 in) |
| 1963 | 65.5 mm (2.6 in) |
| 1964 | 37.6 mm (1.5 in) |
| 1965 | 37.8 mm (1.5 in) |
| 1966 | 38.1 mm (1.5 in) |
| 1967 | 37.3 mm (1.5 in) |
| 1968 | 35.8 mm (1.4 in) |
| 1969 | 46.2 mm (1.8 in) |
| 1970 | 34.5 mm (1.4 in) |
| 1971 | 69.9 mm (2.8 in) |
| 1972 | 40.9 mm (1.6 in) |
| 1973 | 40.6 mm (1.6 in) |
| 1974 | 36.8 mm (1.4 in) |
| 1975 | 70.6 mm (2.8 in) |
| 1976 | 25.4 mm (1.0 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1906 | 39.7 mm (1.6 in) |
| 1907 | 59.9 mm (2.4 in) |
| 1908 | 57.4 mm (2.3 in) |
| 1909 | 57.2 mm (2.3 in) |
| 1910 | 54.4 mm (2.1 in) |
| 1911 | 52.6 mm (2.1 in) |
| 1912 | 58.8 mm (2.3 in) |
| 1913 | 47.2 mm (1.9 in) |
| 1914 | 76.6 mm (3.0 in) |
| 1915 | 70.0 mm (2.8 in) |
| 1916 | 79.4 mm (3.1 in) |
| 1917 | 83.8 mm (3.3 in) |
| 1918 | 123.3 mm (4.9 in) |
| 1919 | 66.3 mm (2.6 in) |
| 1920 | 66.8 mm (2.6 in) |
| 1921 | 48.8 mm (1.9 in) |
| 1922 | 61.5 mm (2.4 in) |
| 1923 | 63.3 mm (2.5 in) |
| 1924 | 115.1 mm (4.5 in) |
| 1925 | 89.7 mm (3.5 in) |
| 1926 | 72.9 mm (2.9 in) |
| 1927 | 95.3 mm (3.8 in) |
| 1928 | 87.1 mm (3.4 in) |
| 1929 | 102.2 mm (4.0 in) |
| 1930 | 77.8 mm (3.1 in) |
| 1931 | 78.5 mm (3.1 in) |
| 1932 | 117.1 mm (4.6 in) |
| 1933 | 73.6 mm (2.9 in) |
| 1934 | 81.0 mm (3.2 in) |
| 1935 | 48.5 mm (1.9 in) |
| 1936 | 47.4 mm (1.9 in) |
| 1937 | 57.3 mm (2.3 in) |
| 1938 | 63.8 mm (2.5 in) |
| 1939 | 38.1 mm (1.5 in) |
| 1940 | 70.3 mm (2.8 in) |
| 1941 | 52.3 mm (2.1 in) |
| 1942 | 64.1 mm (2.5 in) |
| 1943 | 91.9 mm (3.6 in) |
| 1944 | 63.6 mm (2.5 in) |
| 1945 | 84.6 mm (3.3 in) |
| 1946 | 94.7 mm (3.7 in) |
| 1947 | 72.6 mm (2.9 in) |
| 1948 | 67.1 mm (2.6 in) |
| 1949 | 83.3 mm (3.3 in) |
| 1950 | 57.9 mm (2.3 in) |
| 1951 | 71.7 mm (2.8 in) |
| 1952 | 106.1 mm (4.2 in) |
| 1953 | 59.2 mm (2.3 in) |
| 1954 | 72.9 mm (2.9 in) |
| 1955 | 66.0 mm (2.6 in) |
| 1956 | 107.5 mm (4.2 in) |
| 1957 | 95.7 mm (3.8 in) |
| 1958 | 74.1 mm (2.9 in) |
| 1959 | 51.3 mm (2.0 in) |
| 1960 | 58.7 mm (2.3 in) |
| 1961 | 64.2 mm (2.5 in) |
| 1962 | 60.2 mm (2.4 in) |
| 1963 | 82.1 mm (3.2 in) |
| 1964 | 52.5 mm (2.1 in) |
| 1965 | 64.5 mm (2.5 in) |
| 1966 | 50.1 mm (2.0 in) |
| 1967 | 39.3 mm (1.5 in) |
| 1968 | 73.4 mm (2.9 in) |
| 1969 | 59.2 mm (2.3 in) |
| 1970 | 49.9 mm (2.0 in) |
| 1971 | 82.1 mm (3.2 in) |
| 1972 | 71.0 mm (2.8 in) |
| 1973 | 54.4 mm (2.1 in) |
| 1974 | 58.6 mm (2.3 in) |
| 1975 | 89.2 mm (3.5 in) |
| 1976 | 29.3 mm (1.2 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1906 | 10 days |
| 1907 | 14 days |
| 1908 | 13 days |
| 1909 | 21 days |
| 1910 | 12 days |
| 1911 | 13 days |
| 1912 | 19 days |
| 1913 | 26 days |
| 1914 | 16 days |
| 1915 | 22 days |
| 1916 | 22 days |
| 1917 | 18 days |
| 1918 | 17 days |
| 1919 | 16 days |
| 1920 | 13 days |
| 1921 | 22 days |
| 1922 | 15 days |
| 1923 | 14 days |
| 1924 | 17 days |
| 1925 | 21 days |
| 1926 | 12 days |
| 1927 | 21 days |
| 1928 | 14 days |
| 1929 | 14 days |
| 1930 | 18 days |
| 1931 | 18 days |
| 1932 | 19 days |
| 1933 | 11 days |
| 1934 | 14 days |
| 1935 | 17 days |
| 1936 | 12 days |
| 1937 | 14 days |
| 1938 | 12 days |
| 1939 | 20 days |
| 1940 | 16 days |
| 1941 | 31 days |
| 1942 | 15 days |
| 1943 | 14 days |
| 1944 | 14 days |
| 1945 | 10 days |
| 1946 | 10 days |
| 1947 | 21 days |
| 1948 | 16 days |
| 1949 | 12 days |
| 1950 | 11 days |
| 1951 | 15 days |
| 1952 | 12 days |
| 1953 | 22 days |
| 1954 | 12 days |
| 1955 | 22 days |
| 1956 | 31 days |
| 1957 | 34 days |
| 1958 | 10 days |
| 1959 | 13 days |
| 1960 | 15 days |
| 1961 | 25 days |
| 1962 | 16 days |
| 1963 | 19 days |
| 1964 | 15 days |
| 1965 | 18 days |
| 1966 | 15 days |
| 1967 | 17 days |
| 1968 | 17 days |
| 1969 | 11 days |
| 1970 | 17 days |
| 1971 | 11 days |
| 1972 | 11 days |
| 1973 | 16 days |
| 1974 | 15 days |
| 1975 | 17 days |
| 1976 | 13 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 Macdonald College falls on 4 May and the median first autumn frost on 6 October, which leaves a median of 153 days between them.
In 1944 to 1975 the median growing season was 151 days. That is 3 days fewer than in 1909 to 1939.
Fitted over all years, the growing season changes by +0.2 days per decade at this station.
| Measure | Median, all years | Earliest period (1909 to 1939) | Recent period (1944 to 1975) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 4 May | 2 May | 8 May | 6 days later | +0.4 days per decade |
| First autumn frost | 6 October | 5 October | 6 October | 1 day later | +0.6 days per decade |
| Growing days | 153 days | 154 days | 151 days | 3 days fewer | +0.2 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
58 years, 1915 to 1974A day with at least 43.7 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 109.4 mm (4.3 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 43.7 mm (1.7 in) | |
| 5 years | 55.9 mm (2.2 in) | |
| 10 years | 65.7 mm (2.6 in) | |
| 25 years | 80.7 mm (3.2 in) | |
| 50 years | 94.0 mm (3.7 in) | |
| 100 years | 109.4 mm (4.3 in) | Longer than the 58 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, 58 years of values from 1915 to 1974.
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: 91.7 mm (3.6 in) in 1932; 88.1 mm (3.5 in) in 1952; 87.1 mm (3.4 in) in 1918.
Station Changes
1 suspectedOne change was suspected in the annual mean temperature of Macdonald College, at 1952. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1952 ran 0.4 C (0.7 F) lower than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1952 | -0.4 | -0.7 | 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).