Whitesand Dam Weather Records (CA004068840)
Record envelope, standing records and threshold days for Whitesand Dam (CA004068840), Saskatchewan, Canada, with 68 years of record.
Key Facts for Whitesand Dam
- Whitesand Dam (CA004068840) is a weather station in Saskatchewan, Canada at 56.23 latitude and -103.15 longitude, 344 m (1,129 ft) above sea level.
- The station reports from 1937 to 2004, 68 years of record.
- 1,464 records set at Whitesand Dam still stand.
- Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
- Whitesand Dam set a daily record low maximum temperature of -33.5 C (-28.3 F) on 22 December 1983.
About the Station
- Location: Saskatchewan, Canada, 56.23 latitude, -103.15 longitude.
- Elevation: 344 m (1,129 ft).
- Period of record: 1937 to 2004, 68 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 | 5.0 C (41.0 F) | -48.5 C (-55.3 F) | n/a | n/a |
| Feb | 7.8 C (46.0 F) | -48.9 C (-56.0 F) | n/a | n/a |
| Mar | 13.9 C (57.0 F) | -43.9 C (-47.0 F) | n/a | n/a |
| Apr | 29.0 C (84.2 F) | -36.1 C (-33.0 F) | n/a | n/a |
| May | 34.4 C (93.9 F) | -15.6 C (3.9 F) | n/a | n/a |
| Jun | 32.2 C (90.0 F) | -4.4 C (24.1 F) | n/a | n/a |
| Jul | 39.4 C (102.9 F) | 0.0 C (32.0 F) | n/a | n/a |
| Aug | 35.0 C (95.0 F) | -3.9 C (25.0 F) | n/a | n/a |
| Sep | 31.1 C (88.0 F) | -8.9 C (16.0 F) | n/a | n/a |
| Oct | 23.9 C (75.0 F) | -21.1 C (-6.0 F) | n/a | n/a |
| Nov | 14.0 C (57.2 F) | -37.8 C (-36.0 F) | n/a | n/a |
| Dec | 6.1 C (43.0 F) | -43.3 C (-45.9 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1938 | 55 |
| 1939 | 57 |
| 1940 | 40 |
| 1941 | 39 |
| 1942 | 52 |
| 1943 | 48 |
| 1944 | 35 |
| 1945 | 32 |
| 1946 | 40 |
| 1947 | 37 |
| 1948 | 35 |
| 1949 | 30 |
| 1950 | 33 |
| 1951 | 45 |
| 1952 | 13 |
| 1953 | 27 |
| 1954 | 44 |
| 1955 | 44 |
| 1956 | 33 |
| 1957 | 26 |
| 1958 | 39 |
| 1959 | 25 |
| 1960 | 12 |
| 1961 | 23 |
| 1962 | 19 |
| 1963 | 31 |
| 1964 | 29 |
| 1965 | 31 |
| 1966 | 27 |
| 1967 | 25 |
| 1968 | 26 |
| 1969 | 31 |
| 1970 | 21 |
| 1971 | 12 |
| 1972 | 54 |
| 1973 | 29 |
| 1974 | 27 |
| 1975 | 13 |
| 1976 | 29 |
| 1977 | 42 |
| 1978 | 13 |
| 1979 | 19 |
| 1980 | 30 |
| 1981 | 46 |
| 1982 | 24 |
| 1983 | 22 |
All-Time Record Progression
3 new records| Date | Kind | Detail |
|---|---|---|
| 1968-01-03 | Record low maximum temperature | Record low maximum temperature -38.3 C (-36.9 F) |
| 1972-01-13 | Record low maximum temperature | Record low maximum temperature -38.9 C (-38.0 F) |
| 1978-08-17 | Record daily precipitation | Record daily precipitation 61.2 mm (2.4 in) |
Wettest Day of Each Month
Aug: 61.2 mm (2.4 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 13.2 mm (0.5 in) | 15 January 1973 |
| Feb | 18.6 mm (0.7 in) | 21 February 1982 |
| Mar | 25.4 mm (1.0 in) | 27 March 1957 |
| Apr | 22.9 mm (0.9 in) | 4 April 1939 |
| May | 39.6 mm (1.6 in) | 31 May 1949 |
| Jun | 45.2 mm (1.8 in) | 22 June 1977 |
| Jul | 53.0 mm (2.1 in) | 7 July 1981 |
| Aug | 61.2 mm (2.4 in) | 17 August 1978 |
| Sep | 60.2 mm (2.4 in) | 3 September 1964 |
| Oct | 48.8 mm (1.9 in) | 13 October 1954 |
| Nov | 25.4 mm (1.0 in) | 25 November 1944 |
| Dec | 25.1 mm (1.0 in) | 17 December 1967 |
Period of Record Coverage
1938 to 1983| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1938 | 362 | 99% | Yes |
| 1939 | 362 | 99% | Yes |
| 1940 | 323 | 88% | No |
| 1941 | 358 | 98% | Yes |
| 1942 | 360 | 99% | Yes |
| 1943 | 365 | 100% | Yes |
| 1944 | 366 | 100% | Yes |
| 1945 | 365 | 100% | Yes |
| 1946 | 365 | 100% | Yes |
| 1947 | 365 | 100% | Yes |
| 1948 | 366 | 100% | Yes |
| 1949 | 365 | 100% | Yes |
| 1950 | 363 | 99% | Yes |
| 1951 | 360 | 99% | Yes |
| 1952 | 274 | 75% | No |
| 1953 | 337 | 92% | Yes |
| 1954 | 365 | 100% | Yes |
| 1955 | 363 | 99% | Yes |
| 1956 | 365 | 100% | Yes |
| 1957 | 359 | 98% | Yes |
| 1958 | 358 | 98% | Yes |
| 1959 | 364 | 100% | Yes |
| 1960 | 362 | 99% | Yes |
| 1961 | 293 | 80% | No |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 357 | 98% | Yes |
| 1965 | 361 | 99% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 363 | 99% | Yes |
| 1971 | 363 | 99% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 364 | 100% | Yes |
| 1974 | 364 | 100% | Yes |
| 1975 | 364 | 100% | Yes |
| 1976 | 360 | 98% | Yes |
| 1977 | 363 | 99% | Yes |
| 1978 | 363 | 99% | Yes |
| 1979 | 364 | 100% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 363 | 99% | Yes |
| 1982 | 364 | 100% | Yes |
| 1983 | 363 | 99% | Yes |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 22 December 1983 | Whitesand Dam, CA | daily low max | -33.5 C (-28.3 F) | 2.4 C (4.3 F) | 37 years | 18 of 100 (Routine) |
| 4 November 1983 | Whitesand Dam, CA | monthly high min | 2.5 C (36.5 F) | 0.3 C (0.5 F) | 36 years | 24 of 100 (Routine) |
| 3 November 1983 | Whitesand Dam, CA | daily high min | 0.5 C (32.9 F) | 0.5 C (0.9 F) | 24 years | 11 of 100 (Routine) |
| 18 September 1983 | Whitesand Dam, CA | daily rain | 24.2 mm (1.0 in) | 12.0 mm (0.5 in) | 42 years | 20 of 100 (Routine) |
| 17 September 1983 | Whitesand Dam, CA | daily rain | 35.4 mm (1.4 in) | 22.2 mm (0.9 in) | 37 years | 48 of 100 (Notable) |
| 16 September 1983 | Whitesand Dam, CA | daily rain | 16.6 mm (0.7 in) | 4.4 mm (0.17 in) | 28 years | 18 of 100 (Routine) |
| 7 September 1983 | Whitesand Dam, CA | daily rain | 39.8 mm (1.6 in) | 25.8 mm (1.0 in) | 17 years | 47 of 100 (Notable) |
| 2 September 1983 | Whitesand Dam, CA | daily rain | 41.4 mm (1.6 in) | 14.0 mm (0.6 in) | 24 years | 31 of 100 (Routine) |
| 28 August 1983 | Whitesand Dam, CA | daily high min | 12.0 C (53.6 F) | 0.3 C (0.5 F) | 8 years | 6 of 100 (Routine) |
| 26 August 1983 | Whitesand Dam, CA | daily high max | 27.0 C (80.6 F) | 0.9 C (1.6 F) | 26 years | 13 of 100 (Routine) |
| 11 August 1983 | Whitesand Dam, CA | daily high max | 31.5 C (88.7 F) | 0.4 C (0.7 F) | 16 years | 8 of 100 (Routine) |
| 3 August 1983 | Whitesand Dam, CA | daily high min | 17.0 C (62.6 F) | 2.6 C (4.7 F) | 33 years | 21 of 100 (Routine) |
| 3 August 1983 | Whitesand Dam, CA | daily high max | 32.0 C (89.6 F) | 0.9 C (1.6 F) | 33 years | 15 of 100 (Routine) |
| 1 August 1983 | Whitesand Dam, CA | daily high max | 29.5 C (85.1 F) | 0.6 C (1.1 F) | 9 years | 7 of 100 (Routine) |
| 16 July 1983 | Whitesand Dam, CA | daily rain | 22.8 mm (0.9 in) | 3.7 mm (0.15 in) | 41 years | 20 of 100 (Routine) |
| 14 July 1983 | Whitesand Dam, CA | daily high min (Tie) | 14.0 C (57.2 F) | tie | 1 year | 1 of 100 (Routine) |
| 18 June 1983 | Whitesand Dam, CA | daily high min | 15.0 C (59.0 F) | 1.1 C (2.0 F) | 17 years | 11 of 100 (Routine) |
| 17 June 1983 | Whitesand Dam, CA | daily high max | 30.0 C (86.0 F) | 3.3 C (5.9 F) | 41 years | 21 of 100 (Routine) |
| 17 June 1983 | Whitesand Dam, CA | daily high min | 16.0 C (60.8 F) | 1.6 C (2.9 F) | 17 years | 12 of 100 (Routine) |
| 16 June 1983 | Whitesand Dam, CA | daily high max | 26.0 C (78.8 F) | 0.4 C (0.7 F) | 40 years | 16 of 100 (Routine) |
Climate Trend
42 complete years, 1938 to 1983| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1938 | -3.0 C | -0.45 C |
| 1939 | -2.7 C | -0.21 C |
| 1941 | -2.1 C | +0.41 C |
| 1942 | -2.5 C | +0.01 C |
| 1943 | -1.9 C | +0.61 C |
| 1944 | -0.7 C | +1.81 C |
| 1945 | -2.9 C | -0.36 C |
| 1946 | -2.7 C | -0.15 C |
| 1947 | -3.0 C | -0.49 C |
| 1948 | -1.4 C | +1.08 C |
| 1949 | -2.8 C | -0.33 C |
| 1950 | -4.1 C | -1.63 C |
| 1951 | -3.1 C | -0.58 C |
| 1954 | -1.9 C | +0.61 C |
| 1955 | -2.6 C | -0.10 C |
| 1956 | -2.5 C | +0.06 C |
| 1957 | -2.8 C | -0.29 C |
| 1958 | -1.8 C | +0.72 C |
| 1959 | -2.5 C | -0.03 C |
| 1960 | -2.5 C | -0.01 C |
| 1962 | -3.1 C | -0.54 C |
| 1963 | -2.1 C | +0.41 C |
| 1964 | -2.4 C | +0.07 C |
| 1965 | -3.2 C | -0.66 C |
| 1966 | -3.3 C | -0.83 C |
| 1967 | -3.3 C | -0.82 C |
| 1968 | -3.2 C | -0.64 C |
| 1969 | -3.5 C | -1.01 C |
| 1970 | -4.0 C | -1.48 C |
| 1971 | -3.2 C | -0.71 C |
| 1972 | -4.9 C | -2.34 C |
| 1973 | -1.2 C | +1.31 C |
| 1974 | -2.7 C | -0.14 C |
| 1975 | -2.4 C | +0.11 C |
| 1976 | -1.8 C | +0.71 C |
| 1977 | -0.8 C | +1.72 C |
| 1978 | -2.6 C | -0.08 C |
| 1979 | -2.8 C | -0.25 C |
| 1980 | -1.1 C | +1.46 C |
| 1981 | 0.4 C | +2.87 C |
| 1982 | -3.7 C | -1.15 C |
| 1983 | -1.2 C | +1.36 C |
The fitted trend in annual mean temperature here over 1938 to 1983 is 0.1 C (-0.2 to 0.3) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.3 to 0.6) per decade. The slope is a straight line fitted to 42 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.1 C (-0.2 to 0.3) per decade | 0.1 F (-0.3 to 0.6) per decade | 1938 to 1983 | 42 | Not clearly different from zero |
| Mean daily maximum | -0.1 C (-0.3 to 0.2) per decade | -0.1 F (-0.6 to 0.4) per decade | 1938 to 1983 | 42 | Not clearly different from zero |
| Mean daily minimum | 0.21 C (-0.03 to 0.45) per decade | 0.4 F (-0.1 to 0.8) per decade | 1938 to 1983 | 42 | 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
1937 to 1983| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 39.4 C (102.9 F) | 1941 | 31.0 C (87.8 F) | 46 |
| Coldest night (TNn) | -48.9 C (-56.0 F) | 1941 | -42.8 C (-45.0 F) | 46 |
| Wettest day (Rx1day) | 61.2 mm (2.4 in) | 1978 | 31.2 mm (1.2 in) | 47 |
| Wettest five days (Rx5day) | 88.8 mm (3.5 in) | 1979 | 46.0 mm (1.8 in) | 47 |
| Longest dry spell (CDD) | 44 days | 1942 | 22 days | 47 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1937 | n/a |
| 1938 | 24.4 C (75.9 F) |
| 1939 | 31.1 C (88.0 F) |
| 1940 | 35.0 C (95.0 F) |
| 1941 | 39.4 C (102.9 F) |
| 1942 | 32.2 C (90.0 F) |
| 1943 | 32.2 C (90.0 F) |
| 1944 | 34.4 C (93.9 F) |
| 1945 | 33.3 C (91.9 F) |
| 1946 | 35.0 C (95.0 F) |
| 1947 | 36.1 C (97.0 F) |
| 1948 | 33.3 C (91.9 F) |
| 1949 | 31.7 C (89.1 F) |
| 1950 | 37.2 C (99.0 F) |
| 1951 | 32.8 C (91.0 F) |
| 1952 | 29.4 C (84.9 F) |
| 1953 | 32.8 C (91.0 F) |
| 1954 | 31.1 C (88.0 F) |
| 1955 | 33.9 C (93.0 F) |
| 1956 | 32.2 C (90.0 F) |
| 1957 | 27.2 C (81.0 F) |
| 1958 | 27.8 C (82.0 F) |
| 1959 | 28.3 C (82.9 F) |
| 1960 | 30.6 C (87.1 F) |
| 1961 | 30.0 C (86.0 F) |
| 1962 | 27.2 C (81.0 F) |
| 1963 | 30.0 C (86.0 F) |
| 1964 | 28.9 C (84.0 F) |
| 1965 | 26.7 C (80.1 F) |
| 1966 | 26.1 C (79.0 F) |
| 1967 | 31.1 C (88.0 F) |
| 1968 | 24.4 C (75.9 F) |
| 1969 | 28.3 C (82.9 F) |
| 1970 | 31.7 C (89.1 F) |
| 1971 | 28.9 C (84.0 F) |
| 1972 | 30.6 C (87.1 F) |
| 1973 | 29.4 C (84.9 F) |
| 1974 | 30.0 C (86.0 F) |
| 1975 | 32.2 C (90.0 F) |
| 1976 | 28.9 C (84.0 F) |
| 1977 | 26.7 C (80.1 F) |
| 1978 | 30.0 C (86.0 F) |
| 1979 | 33.5 C (92.3 F) |
| 1980 | 31.0 C (87.8 F) |
| 1981 | 31.0 C (87.8 F) |
| 1982 | 29.0 C (84.2 F) |
| 1983 | 32.0 C (89.6 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1937 | n/a |
| 1938 | -43.3 C (-45.9 F) |
| 1939 | -45.6 C (-50.1 F) |
| 1940 | -41.1 C (-42.0 F) |
| 1941 | -48.9 C (-56.0 F) |
| 1942 | -43.3 C (-45.9 F) |
| 1943 | -47.2 C (-53.0 F) |
| 1944 | -42.8 C (-45.0 F) |
| 1945 | -42.2 C (-44.0 F) |
| 1946 | -44.4 C (-47.9 F) |
| 1947 | -46.1 C (-51.0 F) |
| 1948 | -39.4 C (-38.9 F) |
| 1949 | -42.2 C (-44.0 F) |
| 1950 | -46.7 C (-52.1 F) |
| 1951 | -42.8 C (-45.0 F) |
| 1952 | -41.7 C (-43.1 F) |
| 1953 | -42.2 C (-44.0 F) |
| 1954 | -45.6 C (-50.1 F) |
| 1955 | -43.9 C (-47.0 F) |
| 1956 | -42.8 C (-45.0 F) |
| 1957 | -44.4 C (-47.9 F) |
| 1958 | -41.1 C (-42.0 F) |
| 1959 | -41.7 C (-43.1 F) |
| 1960 | -40.6 C (-41.1 F) |
| 1961 | -40.0 C (-40.0 F) |
| 1962 | -44.4 C (-47.9 F) |
| 1963 | -43.3 C (-45.9 F) |
| 1964 | -40.0 C (-40.0 F) |
| 1965 | -45.6 C (-50.1 F) |
| 1966 | -43.9 C (-47.0 F) |
| 1967 | -43.9 C (-47.0 F) |
| 1968 | -44.4 C (-47.9 F) |
| 1969 | -42.8 C (-45.0 F) |
| 1970 | -43.3 C (-45.9 F) |
| 1971 | -42.2 C (-44.0 F) |
| 1972 | -43.3 C (-45.9 F) |
| 1973 | -43.3 C (-45.9 F) |
| 1974 | -42.2 C (-44.0 F) |
| 1975 | -42.2 C (-44.0 F) |
| 1976 | -41.1 C (-42.0 F) |
| 1977 | -41.1 C (-42.0 F) |
| 1978 | -38.3 C (-36.9 F) |
| 1979 | -40.0 C (-40.0 F) |
| 1980 | -36.0 C (-32.8 F) |
| 1981 | -40.0 C (-40.0 F) |
| 1982 | -48.5 C (-55.3 F) |
| 1983 | -40.5 C (-40.9 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1937 | 8.9 mm (0.35 in) |
| 1938 | 18.5 mm (0.7 in) |
| 1939 | 42.2 mm (1.7 in) |
| 1940 | 15.7 mm (0.6 in) |
| 1941 | 30.0 mm (1.2 in) |
| 1942 | 41.7 mm (1.6 in) |
| 1943 | 19.1 mm (0.8 in) |
| 1944 | 25.4 mm (1.0 in) |
| 1945 | 23.9 mm (0.9 in) |
| 1946 | 26.4 mm (1.0 in) |
| 1947 | 23.1 mm (0.9 in) |
| 1948 | 31.2 mm (1.2 in) |
| 1949 | 39.6 mm (1.6 in) |
| 1950 | 31.2 mm (1.2 in) |
| 1951 | 21.1 mm (0.8 in) |
| 1952 | 18.3 mm (0.7 in) |
| 1953 | 32.8 mm (1.3 in) |
| 1954 | 48.8 mm (1.9 in) |
| 1955 | 25.4 mm (1.0 in) |
| 1956 | 13.5 mm (0.5 in) |
| 1957 | 46.2 mm (1.8 in) |
| 1958 | 27.4 mm (1.1 in) |
| 1959 | 35.3 mm (1.4 in) |
| 1960 | 15.0 mm (0.6 in) |
| 1961 | 33.0 mm (1.3 in) |
| 1962 | 23.1 mm (0.9 in) |
| 1963 | 35.1 mm (1.4 in) |
| 1964 | 60.2 mm (2.4 in) |
| 1965 | 23.6 mm (0.9 in) |
| 1966 | 21.1 mm (0.8 in) |
| 1967 | 25.1 mm (1.0 in) |
| 1968 | 28.4 mm (1.1 in) |
| 1969 | 49.3 mm (1.9 in) |
| 1970 | 35.6 mm (1.4 in) |
| 1971 | 41.7 mm (1.6 in) |
| 1972 | 32.0 mm (1.3 in) |
| 1973 | 40.9 mm (1.6 in) |
| 1974 | 19.6 mm (0.8 in) |
| 1975 | 23.1 mm (0.9 in) |
| 1976 | 38.1 mm (1.5 in) |
| 1977 | 45.2 mm (1.8 in) |
| 1978 | 61.2 mm (2.4 in) |
| 1979 | 43.0 mm (1.7 in) |
| 1980 | 27.6 mm (1.1 in) |
| 1981 | 53.0 mm (2.1 in) |
| 1982 | 43.0 mm (1.7 in) |
| 1983 | 41.4 mm (1.6 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1937 | 15.3 mm (0.6 in) |
| 1938 | 31.5 mm (1.2 in) |
| 1939 | 46.0 mm (1.8 in) |
| 1940 | 37.8 mm (1.5 in) |
| 1941 | 57.9 mm (2.3 in) |
| 1942 | 41.7 mm (1.6 in) |
| 1943 | 35.3 mm (1.4 in) |
| 1944 | 46.0 mm (1.8 in) |
| 1945 | 36.6 mm (1.4 in) |
| 1946 | 33.8 mm (1.3 in) |
| 1947 | 33.0 mm (1.3 in) |
| 1948 | 47.5 mm (1.9 in) |
| 1949 | 71.1 mm (2.8 in) |
| 1950 | 49.6 mm (2.0 in) |
| 1951 | 35.5 mm (1.4 in) |
| 1952 | 45.5 mm (1.8 in) |
| 1953 | 46.3 mm (1.8 in) |
| 1954 | 56.1 mm (2.2 in) |
| 1955 | 37.4 mm (1.5 in) |
| 1956 | 29.5 mm (1.2 in) |
| 1957 | 54.2 mm (2.1 in) |
| 1958 | 43.5 mm (1.7 in) |
| 1959 | 45.7 mm (1.8 in) |
| 1960 | 34.3 mm (1.4 in) |
| 1961 | 35.0 mm (1.4 in) |
| 1962 | 40.4 mm (1.6 in) |
| 1963 | 69.9 mm (2.8 in) |
| 1964 | 73.4 mm (2.9 in) |
| 1965 | 41.8 mm (1.6 in) |
| 1966 | 35.3 mm (1.4 in) |
| 1967 | 44.2 mm (1.7 in) |
| 1968 | 44.9 mm (1.8 in) |
| 1969 | 64.2 mm (2.5 in) |
| 1970 | 81.6 mm (3.2 in) |
| 1971 | 49.6 mm (2.0 in) |
| 1972 | 52.3 mm (2.1 in) |
| 1973 | 56.9 mm (2.2 in) |
| 1974 | 34.8 mm (1.4 in) |
| 1975 | 52.1 mm (2.1 in) |
| 1976 | 84.6 mm (3.3 in) |
| 1977 | 52.6 mm (2.1 in) |
| 1978 | 86.8 mm (3.4 in) |
| 1979 | 88.8 mm (3.5 in) |
| 1980 | 59.8 mm (2.4 in) |
| 1981 | 61.9 mm (2.4 in) |
| 1982 | 79.0 mm (3.1 in) |
| 1983 | 84.2 mm (3.3 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1937 | 6 days |
| 1938 | 24 days |
| 1939 | 13 days |
| 1940 | 18 days |
| 1941 | 19 days |
| 1942 | 44 days |
| 1943 | 22 days |
| 1944 | 35 days |
| 1945 | 27 days |
| 1946 | 17 days |
| 1947 | 20 days |
| 1948 | 24 days |
| 1949 | 23 days |
| 1950 | 36 days |
| 1951 | 17 days |
| 1952 | 44 days |
| 1953 | 23 days |
| 1954 | 37 days |
| 1955 | 15 days |
| 1956 | 17 days |
| 1957 | 19 days |
| 1958 | 19 days |
| 1959 | 14 days |
| 1960 | 20 days |
| 1961 | 23 days |
| 1962 | 14 days |
| 1963 | 36 days |
| 1964 | 29 days |
| 1965 | 19 days |
| 1966 | 23 days |
| 1967 | 14 days |
| 1968 | 21 days |
| 1969 | 19 days |
| 1970 | 20 days |
| 1971 | 19 days |
| 1972 | 21 days |
| 1973 | 26 days |
| 1974 | 40 days |
| 1975 | 28 days |
| 1976 | 24 days |
| 1977 | 27 days |
| 1978 | 42 days |
| 1979 | 38 days |
| 1980 | 33 days |
| 1981 | 33 days |
| 1982 | 19 days |
| 1983 | 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
42 years with a frostAcross 42 years with a frost, the median last spring frost at Whitesand Dam falls on 8 June and the median first autumn frost on 11 September, which leaves a median of 97 days between them.
Fitted over all years, the growing season changes by +8.4 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1951 to 1983) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 8 June | n/a | 4 June | n/a | -4.8 days per decade |
| First autumn frost | 11 September | n/a | 12 September | n/a | +3.6 days per decade |
| Growing days | 97 days | n/a | 100 days | n/a | +8.4 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
43 years, 1938 to 1983A day with at least 31.8 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 67.4 mm (2.7 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 31.8 mm (1.3 in) | |
| 5 years | 42.7 mm (1.7 in) | |
| 10 years | 49.3 mm (1.9 in) | |
| 25 years | 57.1 mm (2.2 in) | |
| 50 years | 62.4 mm (2.5 in) | Longer than the 43 years of record |
| 100 years | 67.4 mm (2.7 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 1938 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: 61.2 mm (2.4 in) in 1978; 60.2 mm (2.4 in) in 1964; 53.0 mm (2.1 in) in 1981.
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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).