Leader Weather Records (CA004024160)
Record envelope, standing records and threshold days for Leader (CA004024160), Saskatchewan, Canada, with 48 years of record.
Key Facts for Leader
- Leader (CA004024160) is a weather station in Saskatchewan, Canada at 50.88 latitude and -109.55 longitude, 671 m (2,201 ft) above sea level.
- The station reports from 1922 to 1969, 48 years of record.
- 1,464 records set at Leader still stand.
- Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
- Leader set a daily record high minimum temperature of 11.1 C (52.0 F) on 19 September 1969.
About the Station
- Location: Saskatchewan, Canada, 50.88 latitude, -109.55 longitude.
- Elevation: 671 m (2,201 ft).
- Period of record: 1922 to 1969, 48 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 | 15.0 C (59.0 F) | -46.7 C (-52.1 F) | n/a | n/a |
| Feb | 15.6 C (60.1 F) | -47.8 C (-54.0 F) | n/a | n/a |
| Mar | 21.1 C (70.0 F) | -37.8 C (-36.0 F) | n/a | n/a |
| Apr | 34.4 C (93.9 F) | -28.9 C (-20.0 F) | n/a | n/a |
| May | 38.3 C (100.9 F) | -10.0 C (14.0 F) | n/a | n/a |
| Jun | 41.1 C (106.0 F) | -3.9 C (25.0 F) | n/a | n/a |
| Jul | 41.1 C (106.0 F) | -1.7 C (28.9 F) | n/a | n/a |
| Aug | 41.1 C (106.0 F) | -2.2 C (28.0 F) | n/a | n/a |
| Sep | 37.2 C (99.0 F) | -11.7 C (10.9 F) | n/a | n/a |
| Oct | 33.9 C (93.0 F) | -25.0 C (-13.0 F) | n/a | n/a |
| Nov | 22.8 C (73.0 F) | -34.4 C (-29.9 F) | n/a | n/a |
| Dec | 19.4 C (66.9 F) | -41.7 C (-43.1 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1924 | 54 |
| 1925 | 42 |
| 1926 | 40 |
| 1927 | 31 |
| 1928 | 43 |
| 1929 | 41 |
| 1930 | 45 |
| 1931 | 57 |
| 1932 | 33 |
| 1933 | 29 |
| 1934 | 41 |
| 1935 | 37 |
| 1936 | 71 |
| 1937 | 25 |
| 1938 | 17 |
| 1939 | 41 |
| 1940 | 27 |
| 1941 | 25 |
| 1942 | 34 |
| 1943 | 33 |
| 1944 | 17 |
| 1945 | 16 |
| 1946 | 23 |
| 1947 | 21 |
| 1948 | 24 |
| 1949 | 34 |
| 1950 | 35 |
| 1951 | 30 |
| 1952 | 28 |
| 1953 | 21 |
| 1954 | 54 |
| 1955 | 26 |
| 1956 | 26 |
| 1957 | 25 |
| 1958 | 15 |
| 1959 | 33 |
| 1960 | 15 |
| 1961 | 33 |
| 1962 | 31 |
| 1963 | 27 |
| 1964 | 20 |
| 1965 | 34 |
| 1966 | 24 |
| 1967 | 21 |
| 1968 | 35 |
| 1969 | 30 |
All-Time Record Progression
1 new records| Date | Kind | Detail |
|---|---|---|
| 1957-03-25 | Record daily snowfall | Record daily snowfall 30.5 cm (12.0 in) |
Wettest Day of Each Month
Jul: 96.5 mm (3.8 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 15.7 mm (0.6 in) | 5 January 1967 |
| Feb | 20.3 mm (0.8 in) | 23 February 1956 |
| Mar | 30.5 mm (1.2 in) | 25 March 1957 |
| Apr | 26.9 mm (1.1 in) | 29 April 1969 |
| May | 69.6 mm (2.7 in) | 20 May 1939 |
| Jun | 63.5 mm (2.5 in) | 13 June 1923 |
| Jul | 96.5 mm (3.8 in) | 4 July 1927 |
| Aug | 57.2 mm (2.3 in) | 6 August 1965 |
| Sep | 53.6 mm (2.1 in) | 5 September 1954 |
| Oct | 19.1 mm (0.8 in) | 26 October 1940 |
| Nov | 17.8 mm (0.7 in) | 16 November 1966 |
| Dec | 20.3 mm (0.8 in) | 14 December 1924 |
Period of Record Coverage
1924 to 1969| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1924 | 364 | 99% | Yes |
| 1925 | 362 | 99% | Yes |
| 1926 | 365 | 100% | Yes |
| 1927 | 365 | 100% | Yes |
| 1928 | 366 | 100% | Yes |
| 1929 | 365 | 100% | Yes |
| 1930 | 365 | 100% | Yes |
| 1931 | 364 | 100% | Yes |
| 1932 | 365 | 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 | 365 | 100% | Yes |
| 1940 | 366 | 100% | Yes |
| 1941 | 365 | 100% | Yes |
| 1942 | 365 | 100% | Yes |
| 1943 | 365 | 100% | Yes |
| 1944 | 365 | 100% | Yes |
| 1945 | 364 | 100% | Yes |
| 1946 | 365 | 100% | Yes |
| 1947 | 363 | 99% | Yes |
| 1948 | 363 | 99% | Yes |
| 1949 | 334 | 92% | Yes |
| 1950 | 304 | 83% | No |
| 1951 | 273 | 75% | No |
| 1952 | 366 | 100% | Yes |
| 1953 | 365 | 100% | Yes |
| 1954 | 365 | 100% | Yes |
| 1955 | 365 | 100% | Yes |
| 1956 | 365 | 100% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 361 | 99% | Yes |
| 1960 | 362 | 99% | Yes |
| 1961 | 360 | 99% | Yes |
| 1962 | 342 | 94% | Yes |
| 1963 | 348 | 95% | Yes |
| 1964 | 349 | 95% | Yes |
| 1965 | 355 | 97% | Yes |
| 1966 | 353 | 97% | Yes |
| 1967 | 355 | 97% | Yes |
| 1968 | 355 | 97% | Yes |
| 1969 | 271 | 74% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 19 September 1969 | Leader, CA | daily high min | 11.1 C (52.0 F) | 0.5 C (0.9 F) | 3 years | 5 of 100 (Routine) |
| 13 September 1969 | Leader, CA | daily high min | 15.6 C (60.1 F) | 1.7 C (3.1 F) | 6 years | 8 of 100 (Routine) |
| 11 September 1969 | Leader, CA | daily high max | 33.3 C (91.9 F) | 2.2 C (4.0 F) | 28 years | 14 of 100 (Routine) |
| 25 August 1969 | Leader, CA | monthly high min | 23.3 C (73.9 F) | 1.6 C (2.9 F) | 36 years | 28 of 100 (Routine) |
| 21 August 1969 | Leader, CA | daily high max (Tie) | 35.6 C (96.1 F) | tie | 38 years | 3 of 100 (Routine) |
| 16 July 1969 | Leader, CA | daily low min | 4.4 C (39.9 F) | 1.2 C (2.2 F) | 40 years | 19 of 100 (Routine) |
| 6 July 1969 | Leader, CA | daily low max | 13.3 C (55.9 F) | 2.3 C (4.1 F) | 38 years | 19 of 100 (Routine) |
| 5 July 1969 | Leader, CA | daily rain | 15.7 mm (0.6 in) | 6.6 mm (0.26 in) | 36 years | 20 of 100 (Routine) |
| 20 June 1969 | Leader, CA | daily low max | 13.3 C (55.9 F) | 2.3 C (4.1 F) | 16 years | 12 of 100 (Routine) |
| 18 June 1969 | Leader, CA | daily high max | 31.7 C (89.1 F) | 1.7 C (3.1 F) | 6 years | 7 of 100 (Routine) |
| 14 June 1969 | Leader, CA | daily low min | 1.1 C (34.0 F) | 0.6 C (1.1 F) | 16 years | 10 of 100 (Routine) |
| 13 June 1969 | Leader, CA | daily low min | -2.8 C (27.0 F) | 2.8 C (5.0 F) | 27 years | 19 of 100 (Routine) |
| 12 June 1969 | Leader, CA | monthly low min | -3.9 C (25.0 F) | 1.1 C (2.0 F) | 20 years | 23 of 100 (Routine) |
| 25 May 1969 | Leader, CA | daily high min | 15.6 C (60.1 F) | 2.8 C (5.0 F) | 27 years | 18 of 100 (Routine) |
| 15 May 1969 | Leader, CA | daily low max (Tie) | 6.7 C (44.1 F) | tie | 14 years | 2 of 100 (Routine) |
| 14 May 1969 | Leader, CA | daily high min | 11.7 C (53.1 F) | 0.6 C (1.1 F) | 32 years | 14 of 100 (Routine) |
| 13 May 1969 | Leader, CA | daily high min | 12.2 C (54.0 F) | 2.2 C (4.0 F) | 19 years | 14 of 100 (Routine) |
| 29 April 1969 | Leader, CA | monthly rain | 26.9 mm (1.1 in) | 0.7 mm (0.03 in) | 44 years | 28 of 100 (Routine) |
| 24 April 1969 | Leader, CA | daily high min | 11.7 C (53.1 F) | 6.7 C (12.1 F) | 20 years | 22 of 100 (Routine) |
| 23 April 1969 | Leader, CA | daily high min | 7.8 C (46.0 F) | 0.6 C (1.1 F) | 30 years | 14 of 100 (Routine) |
Climate Trend
39 complete years, 1924 to 1968| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1924 | 4.4 C | +0.77 C |
| 1925 | 3.7 C | +0.07 C |
| 1926 | 4.5 C | +0.85 C |
| 1927 | 1.7 C | -1.97 C |
| 1928 | 4.4 C | +0.75 C |
| 1929 | 2.7 C | -0.93 C |
| 1930 | 4.9 C | +1.31 C |
| 1931 | 5.8 C | +2.20 C |
| 1932 | 2.8 C | -0.84 C |
| 1933 | 3.2 C | -0.41 C |
| 1934 | 4.9 C | +1.31 C |
| 1935 | 1.6 C | -2.04 C |
| 1936 | 2.3 C | -1.33 C |
| 1937 | 3.3 C | -0.31 C |
| 1938 | 4.7 C | +1.06 C |
| 1939 | 4.4 C | +0.74 C |
| 1940 | 3.5 C | -0.16 C |
| 1941 | 5.3 C | +1.62 C |
| 1942 | 4.5 C | +0.90 C |
| 1943 | 4.3 C | +0.67 C |
| 1944 | 4.8 C | +1.20 C |
| 1945 | 3.0 C | -0.60 C |
| 1946 | 4.1 C | +0.43 C |
| 1947 | 3.3 C | -0.32 C |
| 1948 | 3.5 C | -0.09 C |
| 1952 | 3.7 C | +0.06 C |
| 1953 | 4.7 C | +1.09 C |
| 1954 | 3.5 C | -0.17 C |
| 1955 | 1.6 C | -2.00 C |
| 1956 | 2.8 C | -0.86 C |
| 1957 | 3.8 C | +0.21 C |
| 1958 | 4.6 C | +0.96 C |
| 1959 | 3.1 C | -0.51 C |
| 1960 | 3.6 C | 0.00 C |
| 1961 | 4.4 C | +0.72 C |
| 1965 | 1.5 C | -2.16 C |
| 1966 | 2.0 C | -1.66 C |
| 1967 | 2.9 C | -0.77 C |
| 1968 | 4.0 C | +0.32 C |
The fitted trend in annual mean temperature here over 1924 to 1968 is -0.2 C (-0.5 to 0.1) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.3 F (-0.8 to 0.1) per decade. The slope is a straight line fitted to 39 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 (-0.5 to 0.1) per decade | -0.3 F (-0.8 to 0.1) per decade | 1924 to 1968 | 39 | Not clearly different from zero |
| Mean daily maximum | -0.2 C (-0.6 to 0.1) per decade | -0.4 F (-1.1 to 0.2) per decade | 1924 to 1968 | 39 | Not clearly different from zero |
| Mean daily minimum | -0.1 C (-0.4 to 0.1) per decade | -0.3 F (-0.7 to 0.2) per decade | 1924 to 1968 | 39 | 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
1922 to 1969| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 41.1 C (106.0 F) | 1933 | 37.8 C (100.0 F) | 46 |
| Coldest night (TNn) | -47.8 C (-54.0 F) | 1936 | -38.6 C (-37.5 F) | 46 |
| Wettest day (Rx1day) | 96.5 mm (3.8 in) | 1927 | 28.3 mm (1.1 in) | 48 |
| Wettest five days (Rx5day) | 133.6 mm (5.3 in) | 1927 | 42.1 mm (1.7 in) | 48 |
| Longest dry spell (CDD) | 83 days | 1928 | 38 days | 48 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1922 | n/a |
| 1923 | n/a |
| 1924 | 36.7 C (98.1 F) |
| 1925 | 37.8 C (100.0 F) |
| 1926 | 38.3 C (100.9 F) |
| 1927 | 32.8 C (91.0 F) |
| 1928 | 37.8 C (100.0 F) |
| 1929 | 40.0 C (104.0 F) |
| 1930 | 37.8 C (100.0 F) |
| 1931 | 40.0 C (104.0 F) |
| 1932 | 37.2 C (99.0 F) |
| 1933 | 41.1 C (106.0 F) |
| 1934 | 38.9 C (102.0 F) |
| 1935 | 38.3 C (100.9 F) |
| 1936 | 41.1 C (106.0 F) |
| 1937 | 41.1 C (106.0 F) |
| 1938 | 38.3 C (100.9 F) |
| 1939 | 39.4 C (102.9 F) |
| 1940 | 37.8 C (100.0 F) |
| 1941 | 41.1 C (106.0 F) |
| 1942 | 37.2 C (99.0 F) |
| 1943 | 39.4 C (102.9 F) |
| 1944 | 38.9 C (102.0 F) |
| 1945 | 39.4 C (102.9 F) |
| 1946 | 38.9 C (102.0 F) |
| 1947 | 38.9 C (102.0 F) |
| 1948 | 38.9 C (102.0 F) |
| 1949 | 39.4 C (102.9 F) |
| 1950 | 36.7 C (98.1 F) |
| 1951 | 37.2 C (99.0 F) |
| 1952 | 35.0 C (95.0 F) |
| 1953 | 36.7 C (98.1 F) |
| 1954 | 35.6 C (96.1 F) |
| 1955 | 36.1 C (97.0 F) |
| 1956 | 36.7 C (98.1 F) |
| 1957 | 37.2 C (99.0 F) |
| 1958 | 37.2 C (99.0 F) |
| 1959 | 35.6 C (96.1 F) |
| 1960 | 40.0 C (104.0 F) |
| 1961 | 41.1 C (106.0 F) |
| 1962 | 33.3 C (91.9 F) |
| 1963 | 37.2 C (99.0 F) |
| 1964 | 37.2 C (99.0 F) |
| 1965 | 33.9 C (93.0 F) |
| 1966 | 33.9 C (93.0 F) |
| 1967 | 37.2 C (99.0 F) |
| 1968 | 35.0 C (95.0 F) |
| 1969 | 37.2 C (99.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1922 | n/a |
| 1923 | n/a |
| 1924 | -41.1 C (-42.0 F) |
| 1925 | -34.4 C (-29.9 F) |
| 1926 | -35.6 C (-32.1 F) |
| 1927 | -41.7 C (-43.1 F) |
| 1928 | -40.0 C (-40.0 F) |
| 1929 | -43.3 C (-45.9 F) |
| 1930 | -40.6 C (-41.1 F) |
| 1931 | -29.4 C (-20.9 F) |
| 1932 | -38.9 C (-38.0 F) |
| 1933 | -36.1 C (-33.0 F) |
| 1934 | -38.9 C (-38.0 F) |
| 1935 | -42.2 C (-44.0 F) |
| 1936 | -47.8 C (-54.0 F) |
| 1937 | -41.1 C (-42.0 F) |
| 1938 | -38.9 C (-38.0 F) |
| 1939 | -42.8 C (-45.0 F) |
| 1940 | -36.1 C (-33.0 F) |
| 1941 | -32.8 C (-27.0 F) |
| 1942 | -33.3 C (-27.9 F) |
| 1943 | -46.7 C (-52.1 F) |
| 1944 | -35.0 C (-31.0 F) |
| 1945 | -32.8 C (-27.0 F) |
| 1946 | -35.6 C (-32.1 F) |
| 1947 | -41.1 C (-42.0 F) |
| 1948 | -35.6 C (-32.1 F) |
| 1949 | -36.7 C (-34.1 F) |
| 1950 | -43.9 C (-47.0 F) |
| 1951 | -39.4 C (-38.9 F) |
| 1952 | -40.0 C (-40.0 F) |
| 1953 | -33.9 C (-29.0 F) |
| 1954 | -45.6 C (-50.1 F) |
| 1955 | -36.7 C (-34.1 F) |
| 1956 | -39.4 C (-38.9 F) |
| 1957 | -36.7 C (-34.1 F) |
| 1958 | -36.1 C (-33.0 F) |
| 1959 | -35.0 C (-31.0 F) |
| 1960 | -32.2 C (-26.0 F) |
| 1961 | -36.1 C (-33.0 F) |
| 1962 | -41.1 C (-42.0 F) |
| 1963 | -38.3 C (-36.9 F) |
| 1964 | -37.8 C (-36.0 F) |
| 1965 | -35.6 C (-32.1 F) |
| 1966 | -37.2 C (-35.0 F) |
| 1967 | -39.4 C (-38.9 F) |
| 1968 | -40.6 C (-41.1 F) |
| 1969 | -43.3 C (-45.9 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1922 | 31.8 mm (1.3 in) |
| 1923 | 63.5 mm (2.5 in) |
| 1924 | 23.6 mm (0.9 in) |
| 1925 | 31.8 mm (1.3 in) |
| 1926 | 20.1 mm (0.8 in) |
| 1927 | 96.5 mm (3.8 in) |
| 1928 | 14.2 mm (0.6 in) |
| 1929 | 16.5 mm (0.6 in) |
| 1930 | 44.5 mm (1.8 in) |
| 1931 | 25.4 mm (1.0 in) |
| 1932 | 27.2 mm (1.1 in) |
| 1933 | 18.8 mm (0.7 in) |
| 1934 | 55.9 mm (2.2 in) |
| 1935 | 21.6 mm (0.9 in) |
| 1936 | 33.0 mm (1.3 in) |
| 1937 | 14.5 mm (0.6 in) |
| 1938 | 19.1 mm (0.8 in) |
| 1939 | 69.6 mm (2.7 in) |
| 1940 | 39.4 mm (1.6 in) |
| 1941 | 28.2 mm (1.1 in) |
| 1942 | 29.2 mm (1.1 in) |
| 1943 | 29.5 mm (1.2 in) |
| 1944 | 27.2 mm (1.1 in) |
| 1945 | 25.4 mm (1.0 in) |
| 1946 | 44.5 mm (1.8 in) |
| 1947 | 43.7 mm (1.7 in) |
| 1948 | 11.2 mm (0.4 in) |
| 1949 | 20.8 mm (0.8 in) |
| 1950 | 28.4 mm (1.1 in) |
| 1951 | 28.4 mm (1.1 in) |
| 1952 | 22.4 mm (0.9 in) |
| 1953 | 58.9 mm (2.3 in) |
| 1954 | 53.6 mm (2.1 in) |
| 1955 | 36.8 mm (1.4 in) |
| 1956 | 26.7 mm (1.1 in) |
| 1957 | 30.5 mm (1.2 in) |
| 1958 | 19.1 mm (0.8 in) |
| 1959 | 35.8 mm (1.4 in) |
| 1960 | 20.3 mm (0.8 in) |
| 1961 | 22.6 mm (0.9 in) |
| 1962 | 30.0 mm (1.2 in) |
| 1963 | 26.4 mm (1.0 in) |
| 1964 | 25.9 mm (1.0 in) |
| 1965 | 57.2 mm (2.3 in) |
| 1966 | 40.6 mm (1.6 in) |
| 1967 | 15.7 mm (0.6 in) |
| 1968 | 28.7 mm (1.1 in) |
| 1969 | 26.9 mm (1.1 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1922 | 53.5 mm (2.1 in) |
| 1923 | 116.6 mm (4.6 in) |
| 1924 | 40.7 mm (1.6 in) |
| 1925 | 52.1 mm (2.1 in) |
| 1926 | 23.9 mm (0.9 in) |
| 1927 | 133.6 mm (5.3 in) |
| 1928 | 35.0 mm (1.4 in) |
| 1929 | 21.6 mm (0.9 in) |
| 1930 | 44.5 mm (1.8 in) |
| 1931 | 36.3 mm (1.4 in) |
| 1932 | 31.8 mm (1.3 in) |
| 1933 | 22.1 mm (0.9 in) |
| 1934 | 87.6 mm (3.4 in) |
| 1935 | 42.2 mm (1.7 in) |
| 1936 | 33.0 mm (1.3 in) |
| 1937 | 16.2 mm (0.6 in) |
| 1938 | 35.3 mm (1.4 in) |
| 1939 | 87.1 mm (3.4 in) |
| 1940 | 44.0 mm (1.7 in) |
| 1941 | 39.1 mm (1.5 in) |
| 1942 | 51.2 mm (2.0 in) |
| 1943 | 34.8 mm (1.4 in) |
| 1944 | 28.5 mm (1.1 in) |
| 1945 | 25.4 mm (1.0 in) |
| 1946 | 44.5 mm (1.8 in) |
| 1947 | 75.2 mm (3.0 in) |
| 1948 | 17.1 mm (0.7 in) |
| 1949 | 39.6 mm (1.6 in) |
| 1950 | 41.9 mm (1.6 in) |
| 1951 | 51.2 mm (2.0 in) |
| 1952 | 38.5 mm (1.5 in) |
| 1953 | 79.2 mm (3.1 in) |
| 1954 | 56.6 mm (2.2 in) |
| 1955 | 67.3 mm (2.6 in) |
| 1956 | 52.2 mm (2.1 in) |
| 1957 | 33.3 mm (1.3 in) |
| 1958 | 30.5 mm (1.2 in) |
| 1959 | 50.0 mm (2.0 in) |
| 1960 | 29.1 mm (1.1 in) |
| 1961 | 31.0 mm (1.2 in) |
| 1962 | 43.2 mm (1.7 in) |
| 1963 | 51.6 mm (2.0 in) |
| 1964 | 38.1 mm (1.5 in) |
| 1965 | 99.1 mm (3.9 in) |
| 1966 | 69.1 mm (2.7 in) |
| 1967 | 28.0 mm (1.1 in) |
| 1968 | 54.2 mm (2.1 in) |
| 1969 | 42.2 mm (1.7 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1922 | 26 days |
| 1923 | 64 days |
| 1924 | 23 days |
| 1925 | 45 days |
| 1926 | 31 days |
| 1927 | 41 days |
| 1928 | 83 days |
| 1929 | 28 days |
| 1930 | 36 days |
| 1931 | 46 days |
| 1932 | 34 days |
| 1933 | 49 days |
| 1934 | 43 days |
| 1935 | 39 days |
| 1936 | 38 days |
| 1937 | 39 days |
| 1938 | 39 days |
| 1939 | 46 days |
| 1940 | 35 days |
| 1941 | 64 days |
| 1942 | 28 days |
| 1943 | 60 days |
| 1944 | 48 days |
| 1945 | 50 days |
| 1946 | 43 days |
| 1947 | 32 days |
| 1948 | 56 days |
| 1949 | 46 days |
| 1950 | 38 days |
| 1951 | 35 days |
| 1952 | 30 days |
| 1953 | 35 days |
| 1954 | 35 days |
| 1955 | 42 days |
| 1956 | 32 days |
| 1957 | 30 days |
| 1958 | 30 days |
| 1959 | 28 days |
| 1960 | 57 days |
| 1961 | 37 days |
| 1962 | 41 days |
| 1963 | 30 days |
| 1964 | 31 days |
| 1965 | 43 days |
| 1966 | 25 days |
| 1967 | 29 days |
| 1968 | 24 days |
| 1969 | 34 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
39 years with a frostAcross 39 years with a frost, the median last spring frost at Leader falls on 19 May and the median first autumn frost on 15 September, which leaves a median of 117 days between them.
Fitted over all years, the growing season changes by +1.5 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1933 to 1968) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 19 May | n/a | 19 May | n/a | +1.6 days per decade |
| First autumn frost | 15 September | n/a | 19 September | n/a | +3.1 days per decade |
| Growing days | 117 days | n/a | 118 days | n/a | +1.5 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
43 years, 1924 to 1968A day with at least 27.5 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 99.0 mm (3.9 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 27.5 mm (1.1 in) | |
| 5 years | 40.5 mm (1.6 in) | |
| 10 years | 51.1 mm (2.0 in) | |
| 25 years | 67.4 mm (2.7 in) | |
| 50 years | 82.0 mm (3.2 in) | Longer than the 43 years of record |
| 100 years | 99.0 mm (3.9 in) | Longer than the 43 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, 43 years of values from 1924 to 1968.
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: 96.5 mm (3.8 in) in 1927; 69.6 mm (2.7 in) in 1939; 58.9 mm (2.3 in) in 1953.
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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).