St John's West Cda Weather Records (CA008403600)
Record envelope, standing records and threshold days for St John's West Cda (CA008403600), Newfoundland and Labrador, Canada, with 47 years of record.
Key Facts for St John's West Cda
- St John's West Cda (CA008403600) is a weather station in Newfoundland and Labrador, Canada at 47.52 latitude and -52.78 longitude, 114 m (374 ft) above sea level.
- The station reports from 1950 to 1996, 47 years of record.
- 1,464 records set at St John's West Cda still stand.
- Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
- St John's West Cda set a daily record high minimum temperature of 3.5 C (38.3 F) on 30 December 1983.
About the Station
- Location: Newfoundland and Labrador, Canada, 47.52 latitude, -52.78 longitude.
- Elevation: 114 m (374 ft).
- Period of record: 1950 to 1996, 47 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) | -23.3 C (-9.9 F) | n/a | n/a |
| Feb | 13.0 C (55.4 F) | -25.6 C (-14.1 F) | n/a | n/a |
| Mar | 16.1 C (61.0 F) | -22.2 C (-8.0 F) | n/a | n/a |
| Apr | 20.5 C (68.9 F) | -13.0 C (8.6 F) | n/a | n/a |
| May | 26.1 C (79.0 F) | -7.2 C (19.0 F) | n/a | n/a |
| Jun | 28.9 C (84.0 F) | -4.4 C (24.1 F) | n/a | n/a |
| Jul | 31.1 C (88.0 F) | -1.1 C (30.0 F) | n/a | n/a |
| Aug | 30.5 C (86.9 F) | 0.6 C (33.1 F) | n/a | n/a |
| Sep | 27.2 C (81.0 F) | -1.7 C (28.9 F) | n/a | n/a |
| Oct | 23.3 C (73.9 F) | -5.6 C (21.9 F) | n/a | n/a |
| Nov | 18.9 C (66.0 F) | -11.1 C (12.0 F) | n/a | n/a |
| Dec | 17.2 C (63.0 F) | -20.6 C (-5.1 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1950 | 8 |
| 1951 | 47 |
| 1952 | 26 |
| 1953 | 52 |
| 1954 | 61 |
| 1955 | 48 |
| 1956 | 50 |
| 1957 | 49 |
| 1958 | 42 |
| 1959 | 46 |
| 1960 | 31 |
| 1961 | 57 |
| 1962 | 42 |
| 1963 | 41 |
| 1964 | 44 |
| 1965 | 28 |
| 1966 | 23 |
| 1967 | 64 |
| 1968 | 39 |
| 1969 | 36 |
| 1970 | 52 |
| 1971 | 37 |
| 1972 | 72 |
| 1973 | 47 |
| 1974 | 41 |
| 1975 | 58 |
| 1976 | 42 |
| 1977 | 32 |
| 1978 | 49 |
| 1979 | 62 |
| 1980 | 20 |
| 1981 | 30 |
| 1982 | 31 |
| 1983 | 57 |
Wettest Day of Each Month
Oct: 100.3 mm (3.9 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 78.2 mm (3.1 in) | 9 January 1966 |
| Feb | 62.0 mm (2.4 in) | 21 February 1967 |
| Mar | 73.7 mm (2.9 in) | 21 March 1961 |
| Apr | 75.2 mm (3.0 in) | 11 April 1951 |
| May | 52.8 mm (2.1 in) | 14 May 1952 |
| Jun | 71.9 mm (2.8 in) | 17 June 1973 |
| Jul | 71.4 mm (2.8 in) | 20 July 1958 |
| Aug | 90.9 mm (3.6 in) | 5 August 1971 |
| Sep | 72.4 mm (2.9 in) | 7 September 1952 |
| Oct | 100.3 mm (3.9 in) | 6 October 1953 |
| Nov | 76.2 mm (3.0 in) | 26 November 1981 |
| Dec | 78.7 mm (3.1 in) | 20 December 1966 |
Period of Record Coverage
1950 to 1983| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1950 | 61 | 17% | No |
| 1951 | 334 | 92% | 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 | 364 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 364 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 364 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 366 | 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 | 335 | 92% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 364 | 100% | Yes |
| 1982 | 365 | 100% | Yes |
| 1983 | 365 | 100% | Yes |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 30 December 1983 | St John's West Cda, CA | daily high min | 3.5 C (38.3 F) | 0.7 C (1.3 F) | 13 years | 8 of 100 (Routine) |
| 16 December 1983 | St John's West Cda, CA | daily high min | 5.5 C (41.9 F) | 2.7 C (4.9 F) | 14 years | 12 of 100 (Routine) |
| 15 November 1983 | St John's West Cda, CA | daily low max | -2.0 C (28.4 F) | 0.3 C (0.5 F) | 22 years | 9 of 100 (Routine) |
| 14 November 1983 | St John's West Cda, CA | daily low max | 0.0 C (32.0 F) | 1.1 C (2.0 F) | 29 years | 13 of 100 (Routine) |
| 26 October 1983 | St John's West Cda, CA | daily rain | 44.4 mm (1.7 in) | 13.9 mm (0.5 in) | 6 years | 16 of 100 (Routine) |
| 19 October 1983 | St John's West Cda, CA | daily rain | 28.0 mm (1.1 in) | 14.8 mm (0.6 in) | 28 years | 23 of 100 (Routine) |
| 19 October 1983 | St John's West Cda, CA | daily high min | 8.0 C (46.4 F) | 0.2 C (0.4 F) | 16 years | 7 of 100 (Routine) |
| 17 October 1983 | St John's West Cda, CA | daily low max | 3.5 C (38.3 F) | 0.4 C (0.7 F) | 20 years | 9 of 100 (Routine) |
| 15 October 1983 | St John's West Cda, CA | daily high min | 13.5 C (56.3 F) | 5.2 C (9.4 F) | 21 years | 22 of 100 (Routine) |
| 15 October 1983 | St John's West Cda, CA | daily high max | 18.0 C (64.4 F) | 2.0 C (3.6 F) | 1 year | 7 of 100 (Routine) |
| 14 October 1983 | St John's West Cda, CA | daily high min | 11.5 C (52.7 F) | 3.2 C (5.8 F) | 17 years | 16 of 100 (Routine) |
| 14 October 1983 | St John's West Cda, CA | daily high max | 19.0 C (66.2 F) | 2.0 C (3.6 F) | 4 years | 8 of 100 (Routine) |
| 7 October 1983 | St John's West Cda, CA | daily high min | 14.0 C (57.2 F) | 2.9 C (5.2 F) | 12 years | 13 of 100 (Routine) |
| 3 October 1983 | St John's West Cda, CA | daily high min | 13.0 C (55.4 F) | 1.3 C (2.3 F) | 21 years | 12 of 100 (Routine) |
| 23 September 1983 | St John's West Cda, CA | daily high min | 16.5 C (61.7 F) | 0.9 C (1.6 F) | 32 years | 14 of 100 (Routine) |
| 22 September 1983 | St John's West Cda, CA | daily high max | 25.0 C (77.0 F) | 3.9 C (7.0 F) | 29 years | 21 of 100 (Routine) |
| 15 September 1983 | St John's West Cda, CA | daily rain | 28.6 mm (1.1 in) | 5.2 mm (0.20 in) | 2 years | 7 of 100 (Routine) |
| 8 September 1983 | St John's West Cda, CA | daily high min | 17.0 C (62.6 F) | 1.4 C (2.5 F) | 28 years | 14 of 100 (Routine) |
| 6 September 1983 | St John's West Cda, CA | daily high min | 14.0 C (57.2 F) | 1.2 C (2.2 F) | 24 years | 13 of 100 (Routine) |
| 6 September 1983 | St John's West Cda, CA | daily high max | 23.5 C (74.3 F) | 1.8 C (3.2 F) | 12 years | 10 of 100 (Routine) |
Climate Trend
31 complete years, 1952 to 1983| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1952 | 5.7 C | +0.69 C |
| 1953 | 5.6 C | +0.54 C |
| 1954 | 5.3 C | +0.27 C |
| 1955 | 4.6 C | -0.46 C |
| 1956 | 4.8 C | -0.26 C |
| 1957 | 4.2 C | -0.80 C |
| 1958 | 5.4 C | +0.39 C |
| 1959 | 3.9 C | -1.18 C |
| 1960 | 5.4 C | +0.35 C |
| 1961 | 5.1 C | +0.07 C |
| 1962 | 4.8 C | -0.24 C |
| 1963 | 4.8 C | -0.25 C |
| 1964 | 4.3 C | -0.72 C |
| 1965 | 4.7 C | -0.33 C |
| 1966 | 5.8 C | +0.72 C |
| 1967 | 5.7 C | +0.68 C |
| 1968 | 4.6 C | -0.40 C |
| 1969 | 5.7 C | +0.66 C |
| 1970 | 5.6 C | +0.54 C |
| 1971 | 5.6 C | +0.53 C |
| 1972 | 4.0 C | -1.08 C |
| 1973 | 5.2 C | +0.13 C |
| 1974 | 4.0 C | -1.05 C |
| 1975 | 4.1 C | -0.95 C |
| 1977 | 5.3 C | +0.22 C |
| 1978 | 4.7 C | -0.34 C |
| 1979 | 6.0 C | +0.98 C |
| 1980 | 4.7 C | -0.38 C |
| 1981 | 6.3 C | +1.29 C |
| 1982 | 4.7 C | -0.37 C |
| 1983 | 5.9 C | +0.90 C |
The fitted trend in annual mean temperature here over 1952 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 (-0.4 to 0.6) per decade. The slope is a straight line fitted to 31 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 (-0.4 to 0.6) per decade | 1952 to 1983 | 31 | Not clearly different from zero |
| Mean daily maximum | 0.00 C (-0.24 to 0.24) per decade | 0.00 F (-0.44 to 0.44) per decade | 1952 to 1983 | 31 | Not clearly different from zero |
| Mean daily minimum | 0.1 C (-0.2 to 0.5) per decade | 0.3 F (-0.3 to 0.8) per decade | 1952 to 1983 | 31 | 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
1950 to 1983| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 31.1 C (88.0 F) | 1975 | 27.9 C (82.2 F) | 34 |
| Coldest night (TNn) | -25.6 C (-14.1 F) | 1961 | -18.9 C (-2.0 F) | 34 |
| Wettest day (Rx1day) | 100.3 mm (3.9 in) | 1953 | 64.1 mm (2.5 in) | 34 |
| Wettest five days (Rx5day) | 174.5 mm (6.9 in) | 1951 | 106.9 mm (4.2 in) | 34 |
| Longest dry spell (CDD) | 15 days | 1950 | 11 days | 34 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1950 | 18.9 C (66.0 F) |
| 1951 | 27.2 C (81.0 F) |
| 1952 | 28.9 C (84.0 F) |
| 1953 | 27.8 C (82.0 F) |
| 1954 | 26.7 C (80.1 F) |
| 1955 | 27.8 C (82.0 F) |
| 1956 | 25.6 C (78.1 F) |
| 1957 | 26.1 C (79.0 F) |
| 1958 | 25.6 C (78.1 F) |
| 1959 | 28.9 C (84.0 F) |
| 1960 | 27.8 C (82.0 F) |
| 1961 | 29.4 C (84.9 F) |
| 1962 | 26.7 C (80.1 F) |
| 1963 | 30.0 C (86.0 F) |
| 1964 | 26.7 C (80.1 F) |
| 1965 | 26.7 C (80.1 F) |
| 1966 | 25.6 C (78.1 F) |
| 1967 | 28.9 C (84.0 F) |
| 1968 | 28.9 C (84.0 F) |
| 1969 | 26.1 C (79.0 F) |
| 1970 | 29.4 C (84.9 F) |
| 1971 | 27.2 C (81.0 F) |
| 1972 | 28.3 C (82.9 F) |
| 1973 | 27.2 C (81.0 F) |
| 1974 | 28.3 C (82.9 F) |
| 1975 | 31.1 C (88.0 F) |
| 1976 | 28.9 C (84.0 F) |
| 1977 | 28.3 C (82.9 F) |
| 1978 | 30.5 C (86.9 F) |
| 1979 | 29.5 C (85.1 F) |
| 1980 | 27.0 C (80.6 F) |
| 1981 | 29.5 C (85.1 F) |
| 1982 | 29.0 C (84.2 F) |
| 1983 | 28.0 C (82.4 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1950 | -7.8 C (18.0 F) |
| 1951 | -20.0 C (-4.0 F) |
| 1952 | -17.8 C (0.0 F) |
| 1953 | -17.8 C (0.0 F) |
| 1954 | -17.8 C (0.0 F) |
| 1955 | -18.3 C (-0.9 F) |
| 1956 | -16.7 C (1.9 F) |
| 1957 | -23.3 C (-9.9 F) |
| 1958 | -17.2 C (1.0 F) |
| 1959 | -21.7 C (-7.1 F) |
| 1960 | -18.9 C (-2.0 F) |
| 1961 | -25.6 C (-14.1 F) |
| 1962 | -17.8 C (0.0 F) |
| 1963 | -18.9 C (-2.0 F) |
| 1964 | -18.9 C (-2.0 F) |
| 1965 | -20.6 C (-5.1 F) |
| 1966 | -16.1 C (3.0 F) |
| 1967 | -17.8 C (0.0 F) |
| 1968 | -18.3 C (-0.9 F) |
| 1969 | -15.0 C (5.0 F) |
| 1970 | -20.6 C (-5.1 F) |
| 1971 | -20.6 C (-5.1 F) |
| 1972 | -21.7 C (-7.1 F) |
| 1973 | -19.4 C (-2.9 F) |
| 1974 | -18.3 C (-0.9 F) |
| 1975 | -25.6 C (-14.1 F) |
| 1976 | -16.7 C (1.9 F) |
| 1977 | -19.4 C (-2.9 F) |
| 1978 | -19.0 C (-2.2 F) |
| 1979 | -17.5 C (0.5 F) |
| 1980 | -20.5 C (-4.9 F) |
| 1981 | -17.0 C (1.4 F) |
| 1982 | -20.0 C (-4.0 F) |
| 1983 | -19.0 C (-2.2 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1950 | 29.2 mm (1.1 in) |
| 1951 | 75.2 mm (3.0 in) |
| 1952 | 72.4 mm (2.9 in) |
| 1953 | 100.3 mm (3.9 in) |
| 1954 | 68.6 mm (2.7 in) |
| 1955 | 60.2 mm (2.4 in) |
| 1956 | 67.6 mm (2.7 in) |
| 1957 | 55.6 mm (2.2 in) |
| 1958 | 71.4 mm (2.8 in) |
| 1959 | 50.8 mm (2.0 in) |
| 1960 | 65.3 mm (2.6 in) |
| 1961 | 73.7 mm (2.9 in) |
| 1962 | 71.4 mm (2.8 in) |
| 1963 | 65.0 mm (2.6 in) |
| 1964 | 58.2 mm (2.3 in) |
| 1965 | 55.4 mm (2.2 in) |
| 1966 | 78.7 mm (3.1 in) |
| 1967 | 62.7 mm (2.5 in) |
| 1968 | 73.2 mm (2.9 in) |
| 1969 | 49.3 mm (1.9 in) |
| 1970 | 60.2 mm (2.4 in) |
| 1971 | 90.9 mm (3.6 in) |
| 1972 | 38.1 mm (1.5 in) |
| 1973 | 71.9 mm (2.8 in) |
| 1974 | 65.8 mm (2.6 in) |
| 1975 | 85.1 mm (3.4 in) |
| 1976 | 42.7 mm (1.7 in) |
| 1977 | 46.5 mm (1.8 in) |
| 1978 | 56.0 mm (2.2 in) |
| 1979 | 56.4 mm (2.2 in) |
| 1980 | 53.3 mm (2.1 in) |
| 1981 | 76.2 mm (3.0 in) |
| 1982 | 63.2 mm (2.5 in) |
| 1983 | 47.8 mm (1.9 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1950 | 64.5 mm (2.5 in) |
| 1951 | 174.5 mm (6.9 in) |
| 1952 | 97.0 mm (3.8 in) |
| 1953 | 131.8 mm (5.2 in) |
| 1954 | 103.0 mm (4.1 in) |
| 1955 | 119.5 mm (4.7 in) |
| 1956 | 125.8 mm (5.0 in) |
| 1957 | 90.1 mm (3.5 in) |
| 1958 | 77.5 mm (3.1 in) |
| 1959 | 113.1 mm (4.5 in) |
| 1960 | 92.2 mm (3.6 in) |
| 1961 | 156.8 mm (6.2 in) |
| 1962 | 157.8 mm (6.2 in) |
| 1963 | 108.4 mm (4.3 in) |
| 1964 | 83.3 mm (3.3 in) |
| 1965 | 104.1 mm (4.1 in) |
| 1966 | 119.6 mm (4.7 in) |
| 1967 | 113.5 mm (4.5 in) |
| 1968 | 119.7 mm (4.7 in) |
| 1969 | 99.5 mm (3.9 in) |
| 1970 | 140.9 mm (5.5 in) |
| 1971 | 114.8 mm (4.5 in) |
| 1972 | 73.4 mm (2.9 in) |
| 1973 | 97.1 mm (3.8 in) |
| 1974 | 108.8 mm (4.3 in) |
| 1975 | 109.0 mm (4.3 in) |
| 1976 | 72.1 mm (2.8 in) |
| 1977 | 87.1 mm (3.4 in) |
| 1978 | 93.5 mm (3.7 in) |
| 1979 | 143.4 mm (5.6 in) |
| 1980 | 92.3 mm (3.6 in) |
| 1981 | 120.9 mm (4.8 in) |
| 1982 | 103.9 mm (4.1 in) |
| 1983 | 105.4 mm (4.1 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1950 | 15 days |
| 1951 | 11 days |
| 1952 | 14 days |
| 1953 | 11 days |
| 1954 | 12 days |
| 1955 | 9 days |
| 1956 | 9 days |
| 1957 | 12 days |
| 1958 | 10 days |
| 1959 | 10 days |
| 1960 | 12 days |
| 1961 | 12 days |
| 1962 | 14 days |
| 1963 | 7 days |
| 1964 | 7 days |
| 1965 | 12 days |
| 1966 | 9 days |
| 1967 | 10 days |
| 1968 | 11 days |
| 1969 | 10 days |
| 1970 | 11 days |
| 1971 | 13 days |
| 1972 | 15 days |
| 1973 | 12 days |
| 1974 | 13 days |
| 1975 | 11 days |
| 1976 | 14 days |
| 1977 | 13 days |
| 1978 | 9 days |
| 1979 | 10 days |
| 1980 | 7 days |
| 1981 | 11 days |
| 1982 | 13 days |
| 1983 | 10 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
31 years with a frostAcross 31 years with a frost, the median last spring frost at St John's West Cda falls on 6 June and the median first autumn frost on 30 September, which leaves a median of 114 days between them.
Fitted over all years, the growing season changes by +17.5 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1953 to 1983) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 6 June | n/a | 7 June | n/a | -2.2 days per decade |
| First autumn frost | 30 September | n/a | 1 October | n/a | +15.2 days per decade |
| Growing days | 114 days | n/a | 115 days | n/a | +17.5 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
33 years, 1951 to 1983A day with at least 63.7 mm (2.5 in) of rain is expected about once in 2 years. A day with at least 98.7 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 | 63.7 mm (2.5 in) | |
| 5 years | 76.0 mm (3.0 in) | |
| 10 years | 82.8 mm (3.3 in) | |
| 25 years | 90.1 mm (3.5 in) | |
| 50 years | 94.7 mm (3.7 in) | Longer than the 33 years of record |
| 100 years | 98.7 mm (3.9 in) | Longer than the 33 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, 33 years of values from 1951 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: 100.3 mm (3.9 in) in 1953; 90.9 mm (3.6 in) in 1971; 85.1 mm (3.4 in) in 1975.
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 (2025-12-31).