Chilliwack Weather Records (CA001101530)
Record envelope, standing records and threshold days for Chilliwack (CA001101530), British Columbia, Canada, with 136 years of record.
Key Facts for Chilliwack
- Chilliwack (CA001101530) is a weather station in British Columbia, Canada at 49.17 latitude and -121.92 longitude, 11 m (36 ft) above sea level.
- The station reports from 1879 to 2014, 136 years of record.
- 1,464 records set at Chilliwack still stand.
- Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
- Chilliwack set a daily record precipitation of 38.6 mm (1.5 in) on 6 October 1981.
About the Station
- Location: British Columbia, Canada, 49.17 latitude, -121.92 longitude.
- Elevation: 11 m (36 ft).
- Period of record: 1879 to 2014, 136 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 | 18.3 C (64.9 F) | -20.6 C (-5.1 F) | n/a | n/a |
| Feb | 20.6 C (69.1 F) | -16.7 C (1.9 F) | n/a | n/a |
| Mar | 23.9 C (75.0 F) | -14.4 C (6.1 F) | n/a | n/a |
| Apr | 32.2 C (90.0 F) | -6.1 C (21.0 F) | n/a | n/a |
| May | 34.4 C (93.9 F) | -1.7 C (28.9 F) | n/a | n/a |
| Jun | 36.7 C (98.1 F) | 1.1 C (34.0 F) | n/a | n/a |
| Jul | 37.8 C (100.0 F) | 3.3 C (37.9 F) | n/a | n/a |
| Aug | 36.1 C (97.0 F) | 2.8 C (37.0 F) | n/a | n/a |
| Sep | 33.9 C (93.0 F) | -2.8 C (27.0 F) | n/a | n/a |
| Oct | 27.8 C (82.0 F) | -7.2 C (19.0 F) | n/a | n/a |
| Nov | 21.1 C (70.0 F) | -14.4 C (6.1 F) | n/a | n/a |
| Dec | 19.0 C (66.2 F) | -21.7 C (-7.1 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1881 | 28 |
| 1896 | 48 |
| 1897 | 23 |
| 1898 | 17 |
| 1899 | 22 |
| 1900 | 11 |
| 1901 | 13 |
| 1902 | 18 |
| 1903 | 24 |
| 1904 | 17 |
| 1905 | 32 |
| 1906 | 23 |
| 1907 | 11 |
| 1908 | 2 |
| 1910 | 17 |
| 1911 | 44 |
| 1912 | 25 |
| 1913 | 25 |
| 1914 | 29 |
| 1915 | 15 |
| 1916 | 29 |
| 1917 | 40 |
| 1918 | 21 |
| 1919 | 31 |
| 1920 | 23 |
| 1921 | 20 |
| 1922 | 27 |
| 1923 | 19 |
| 1924 | 31 |
| 1925 | 15 |
| 1926 | 25 |
| 1927 | 16 |
| 1928 | 7 |
| 1929 | 10 |
| 1930 | 18 |
| 1931 | 17 |
| 1932 | 21 |
| 1933 | 13 |
| 1934 | 31 |
| 1935 | 5 |
| 1949 | 11 |
| 1951 | 33 |
| 1952 | 22 |
| 1953 | 15 |
| 1954 | 29 |
| 1955 | 35 |
| 1956 | 20 |
| 1957 | 11 |
| 1958 | 25 |
| 1959 | 15 |
| 1960 | 19 |
| 1961 | 16 |
| 1962 | 23 |
| 1963 | 24 |
| 1964 | 18 |
| 1965 | 23 |
| 1966 | 16 |
| 1967 | 10 |
| 1968 | 23 |
| 1969 | 19 |
| 1970 | 16 |
| 1971 | 17 |
| 1972 | 11 |
| 1973 | 8 |
| 1974 | 15 |
| 1975 | 15 |
| 1976 | 17 |
| 1977 | 15 |
| 1978 | 12 |
| 1979 | 12 |
| 1980 | 32 |
| 1981 | 24 |
All-Time Record Progression
5 new records| Date | Kind | Detail |
|---|---|---|
| 1932-02-26 | Record daily precipitation | Record daily precipitation 122.2 mm (4.8 in) |
| 1958-07-27 | Record high maximum temperature | Record high maximum temperature 37.8 C (100.0 F) |
| 1965-08-18 | Record high minimum temperature | Record high minimum temperature 21.7 C (71.1 F) |
| 1968-12-29 | Record low minimum temperature | Record low minimum temperature -21.7 C (-7.1 F) |
| 1979-12-13 | Record daily precipitation | Record daily precipitation 122.6 mm (4.8 in) |
Wettest Day of Each Month
Dec: 122.6 mm (4.8 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 119.6 mm (4.7 in) | 4 January 1914 |
| Feb | 122.2 mm (4.8 in) | 26 February 1932 |
| Mar | 113.8 mm (4.5 in) | 31 March 1959 |
| Apr | 86.6 mm (3.4 in) | 29 April 1959 |
| May | 83.8 mm (3.3 in) | 1 May 1956 |
| Jun | 70.1 mm (2.8 in) | 1 June 1968 |
| Jul | 50.3 mm (2.0 in) | 1 July 1897 |
| Aug | 43.9 mm (1.7 in) | 10 August 1957 |
| Sep | 85.6 mm (3.4 in) | 23 September 1903 |
| Oct | 118.9 mm (4.7 in) | 24 October 1945 |
| Nov | 115.8 mm (4.6 in) | 2 November 1955 |
| Dec | 122.6 mm (4.8 in) | 13 December 1979 |
Period of Record Coverage
1881 to 1981| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1881 | 327 | 90% | No |
| 1896 | 366 | 100% | Yes |
| 1897 | 353 | 97% | Yes |
| 1898 | 356 | 98% | Yes |
| 1899 | 305 | 84% | No |
| 1900 | 114 | 31% | No |
| 1901 | 275 | 75% | No |
| 1902 | 359 | 98% | Yes |
| 1903 | 364 | 100% | Yes |
| 1904 | 283 | 77% | No |
| 1905 | 365 | 100% | Yes |
| 1906 | 364 | 100% | Yes |
| 1907 | 297 | 81% | No |
| 1908 | 61 | 17% | No |
| 1910 | 214 | 59% | No |
| 1911 | 365 | 100% | Yes |
| 1912 | 365 | 100% | Yes |
| 1913 | 364 | 100% | Yes |
| 1914 | 364 | 100% | Yes |
| 1915 | 365 | 100% | Yes |
| 1916 | 365 | 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 | 365 | 100% | Yes |
| 1931 | 365 | 100% | Yes |
| 1932 | 352 | 96% | Yes |
| 1933 | 365 | 100% | Yes |
| 1934 | 364 | 100% | Yes |
| 1935 | 31 | 8% | No |
| 1949 | 273 | 75% | No |
| 1951 | 365 | 100% | 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 | 365 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 364 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 365 | 100% | Yes |
| 1965 | 365 | 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 | 366 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 334 | 92% | Yes |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 6 October 1981 | Chilliwack, CA | daily rain | 38.6 mm (1.5 in) | 0.2 mm (0.01 in) | 14 years | 14 of 100 (Routine) |
| 5 October 1981 | Chilliwack, CA | daily low max | 10.0 C (50.0 F) | 1.1 C (2.0 F) | 60 years | 30 of 100 (Routine) |
| 1 October 1981 | Chilliwack, CA | daily rain | 66.4 mm (2.6 in) | 21.4 mm (0.8 in) | 71 years | 47 of 100 (Notable) |
| 16 September 1981 | Chilliwack, CA | daily high max | 32.0 C (89.6 F) | 1.4 C (2.5 F) | 52 years | 28 of 100 (Routine) |
| 7 September 1981 | Chilliwack, CA | daily high min | 16.0 C (60.8 F) | 1.6 C (2.9 F) | 75 years | 37 of 100 (Notable) |
| 7 September 1981 | Chilliwack, CA | daily high max | 32.5 C (90.5 F) | 1.4 C (2.5 F) | 58 years | 30 of 100 (Routine) |
| 19 August 1981 | Chilliwack, CA | daily high min | 16.0 C (60.8 F) | 0.4 C (0.7 F) | 78 years | 34 of 100 (Routine) |
| 11 August 1981 | Chilliwack, CA | daily high min | 19.5 C (67.1 F) | 2.3 C (4.1 F) | 82 years | 42 of 100 (Notable) |
| 10 August 1981 | Chilliwack, CA | daily high min | 21.5 C (70.7 F) | 2.6 C (4.7 F) | 14 years | 23 of 100 (Routine) |
| 9 August 1981 | Chilliwack, CA | daily high min | 19.5 C (67.1 F) | 0.6 C (1.1 F) | 20 years | 18 of 100 (Routine) |
| 8 August 1981 | Chilliwack, CA | daily high min | 19.5 C (67.1 F) | 0.5 C (0.9 F) | 3 years | 11 of 100 (Routine) |
| 7 August 1981 | Chilliwack, CA | daily high max | 33.5 C (92.3 F) | 0.2 C (0.4 F) | 20 years | 16 of 100 (Routine) |
| 22 June 1981 | Chilliwack, CA | daily rain | 29.2 mm (1.1 in) | 2.0 mm (0.08 in) | 32 years | 21 of 100 (Routine) |
| 18 June 1981 | Chilliwack, CA | daily rain | 34.0 mm (1.3 in) | 11.9 mm (0.5 in) | 40 years | 37 of 100 (Notable) |
| 17 June 1981 | Chilliwack, CA | daily rain | 14.8 mm (0.6 in) | 0.6 mm (0.02 in) | 66 years | 20 of 100 (Routine) |
| 10 June 1981 | Chilliwack, CA | daily rain | 24.0 mm (0.9 in) | 9.8 mm (0.39 in) | 83 years | 20 of 100 (Routine) |
| 10 June 1981 | Chilliwack, CA | daily low max | 11.5 C (52.7 F) | 2.4 C (4.3 F) | 24 years | 22 of 100 (Routine) |
| 8 June 1981 | Chilliwack, CA | daily rain | 36.0 mm (1.4 in) | 4.8 mm (0.19 in) | 64 years | 35 of 100 (Notable) |
| 8 June 1981 | Chilliwack, CA | daily low max | 12.5 C (54.5 F) | 1.4 C (2.5 F) | 48 years | 27 of 100 (Routine) |
| 6 May 1981 | Chilliwack, CA | daily low max | 11.0 C (51.8 F) | 0.1 C (0.2 F) | 64 years | 29 of 100 (Routine) |
Climate Trend
60 complete years, 1896 to 1980| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1896 | 9.1 C | -0.81 C |
| 1897 | 9.6 C | -0.30 C |
| 1898 | 9.9 C | +0.01 C |
| 1902 | 9.6 C | -0.27 C |
| 1903 | 9.6 C | -0.29 C |
| 1905 | 10.2 C | +0.29 C |
| 1906 | 10.6 C | +0.65 C |
| 1911 | 8.5 C | -1.41 C |
| 1912 | 9.6 C | -0.35 C |
| 1913 | 8.7 C | -1.18 C |
| 1914 | 9.8 C | -0.15 C |
| 1915 | 10.4 C | +0.48 C |
| 1916 | 7.9 C | -1.97 C |
| 1917 | 8.9 C | -0.97 C |
| 1918 | 9.9 C | +0.01 C |
| 1919 | 8.9 C | -1.03 C |
| 1920 | 9.4 C | -0.50 C |
| 1921 | 9.2 C | -0.73 C |
| 1922 | 8.7 C | -1.20 C |
| 1923 | 10.0 C | +0.13 C |
| 1924 | 9.7 C | -0.17 C |
| 1925 | 10.6 C | +0.65 C |
| 1926 | 10.9 C | +0.99 C |
| 1927 | 9.2 C | -0.69 C |
| 1928 | 10.1 C | +0.19 C |
| 1929 | 8.9 C | -1.02 C |
| 1930 | 9.4 C | -0.53 C |
| 1931 | 10.4 C | +0.44 C |
| 1933 | 9.3 C | -0.58 C |
| 1934 | 11.2 C | +1.24 C |
| 1951 | 9.6 C | -0.32 C |
| 1952 | 10.0 C | +0.04 C |
| 1953 | 10.4 C | +0.49 C |
| 1954 | 9.7 C | -0.18 C |
| 1955 | 8.4 C | -1.52 C |
| 1956 | 9.7 C | -0.22 C |
| 1957 | 10.0 C | +0.10 C |
| 1958 | 11.8 C | +1.89 C |
| 1959 | 10.0 C | +0.08 C |
| 1960 | 10.1 C | +0.16 C |
| 1961 | 10.6 C | +0.72 C |
| 1962 | 10.3 C | +0.38 C |
| 1963 | 10.7 C | +0.74 C |
| 1964 | 9.6 C | -0.36 C |
| 1965 | 10.5 C | +0.62 C |
| 1966 | 10.3 C | +0.36 C |
| 1967 | 11.4 C | +1.44 C |
| 1968 | 10.5 C | +0.63 C |
| 1969 | 10.2 C | +0.29 C |
| 1970 | 10.4 C | +0.46 C |
| 1971 | 9.9 C | +0.02 C |
| 1972 | 10.0 C | +0.04 C |
| 1973 | 10.3 C | +0.35 C |
| 1974 | 10.6 C | +0.67 C |
| 1975 | 9.6 C | -0.29 C |
| 1976 | 10.2 C | +0.33 C |
| 1977 | 10.3 C | +0.40 C |
| 1978 | 10.4 C | +0.46 C |
| 1979 | 10.5 C | +0.58 C |
| 1980 | 10.3 C | +0.41 C |
The annual mean temperature here has risen by 0.1 C (0.1 to 0.2) per decade over 1896 to 1980. In Fahrenheit: 0.2 F (0.1 to 0.3) per decade. The slope is a straight line fitted to 60 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 (0.1 to 0.2) per decade | 0.2 F (0.1 to 0.3) per decade | 1896 to 1980 | 60 | Rise |
| Mean daily maximum | 0.07 C (-0.01 to 0.14) per decade | 0.12 F (-0.01 to 0.26) per decade | 1896 to 1980 | 60 | Not clearly different from zero |
| Mean daily minimum | 0.2 C (0.1 to 0.2) per decade | 0.3 F (0.2 to 0.4) per decade | 1896 to 1980 | 60 | 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
1879 to 1981| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 37.8 C (100.0 F) | 1958 | 33.9 C (93.0 F) | 72 |
| Coldest night (TNn) | -21.7 C (-7.1 F) | 1968 | -12.3 C (9.8 F) | 72 |
| Wettest day (Rx1day) | 122.6 mm (4.8 in) | 1979 | 65.2 mm (2.6 in) | 84 |
| Wettest five days (Rx5day) | 327.5 mm (12.9 in) | 1951 | 133.3 mm (5.2 in) | 84 |
| Longest dry spell (CDD) | 50 days | 1915 | 24 days | 84 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1879 | n/a |
| 1880 | n/a |
| 1881 | 32.2 C (90.0 F) |
| 1896 | 33.9 C (93.0 F) |
| 1897 | 33.9 C (93.0 F) |
| 1898 | 34.4 C (93.9 F) |
| 1899 | 32.2 C (90.0 F) |
| 1900 | 32.2 C (90.0 F) |
| 1901 | 31.1 C (88.0 F) |
| 1902 | 34.4 C (93.9 F) |
| 1903 | 36.7 C (98.1 F) |
| 1904 | 31.7 C (89.1 F) |
| 1905 | 33.9 C (93.0 F) |
| 1906 | 34.4 C (93.9 F) |
| 1907 | 33.9 C (93.0 F) |
| 1908 | 26.1 C (79.0 F) |
| 1910 | 33.9 C (93.0 F) |
| 1911 | 33.9 C (93.0 F) |
| 1912 | 33.3 C (91.9 F) |
| 1913 | 33.3 C (91.9 F) |
| 1914 | 31.7 C (89.1 F) |
| 1915 | 35.0 C (95.0 F) |
| 1916 | 32.8 C (91.0 F) |
| 1917 | 30.6 C (87.1 F) |
| 1918 | 32.2 C (90.0 F) |
| 1919 | 31.1 C (88.0 F) |
| 1920 | 32.8 C (91.0 F) |
| 1921 | 30.6 C (87.1 F) |
| 1922 | 33.9 C (93.0 F) |
| 1923 | 35.0 C (95.0 F) |
| 1924 | 35.6 C (96.1 F) |
| 1925 | 36.1 C (97.0 F) |
| 1926 | 35.6 C (96.1 F) |
| 1927 | 36.1 C (97.0 F) |
| 1928 | 34.4 C (93.9 F) |
| 1929 | 31.1 C (88.0 F) |
| 1930 | 33.9 C (93.0 F) |
| 1931 | 33.9 C (93.0 F) |
| 1932 | 33.3 C (91.9 F) |
| 1933 | 33.3 C (91.9 F) |
| 1934 | 31.7 C (89.1 F) |
| 1935 | 8.9 C (48.0 F) |
| 1939 | n/a |
| 1940 | n/a |
| 1941 | n/a |
| 1942 | n/a |
| 1943 | n/a |
| 1944 | n/a |
| 1945 | n/a |
| 1946 | n/a |
| 1947 | n/a |
| 1948 | n/a |
| 1949 | 30.6 C (87.1 F) |
| 1951 | 36.1 C (97.0 F) |
| 1952 | 35.6 C (96.1 F) |
| 1953 | 32.2 C (90.0 F) |
| 1954 | 29.4 C (84.9 F) |
| 1955 | 34.4 C (93.9 F) |
| 1956 | 35.0 C (95.0 F) |
| 1957 | 30.6 C (87.1 F) |
| 1958 | 37.8 C (100.0 F) |
| 1959 | 32.8 C (91.0 F) |
| 1960 | 36.1 C (97.0 F) |
| 1961 | 37.2 C (99.0 F) |
| 1962 | 30.0 C (86.0 F) |
| 1963 | 33.9 C (93.0 F) |
| 1964 | 31.1 C (88.0 F) |
| 1965 | 35.6 C (96.1 F) |
| 1966 | 31.7 C (89.1 F) |
| 1967 | 33.9 C (93.0 F) |
| 1968 | 32.2 C (90.0 F) |
| 1969 | 32.8 C (91.0 F) |
| 1970 | 33.9 C (93.0 F) |
| 1971 | 35.6 C (96.1 F) |
| 1972 | 32.8 C (91.0 F) |
| 1973 | 32.8 C (91.0 F) |
| 1974 | 33.9 C (93.0 F) |
| 1975 | 32.8 C (91.0 F) |
| 1976 | 30.0 C (86.0 F) |
| 1977 | 35.6 C (96.1 F) |
| 1978 | 35.0 C (95.0 F) |
| 1979 | 34.0 C (93.2 F) |
| 1980 | 31.5 C (88.7 F) |
| 1981 | 35.5 C (95.9 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1879 | n/a |
| 1880 | n/a |
| 1881 | -9.4 C (15.1 F) |
| 1896 | -13.3 C (8.1 F) |
| 1897 | -12.8 C (9.0 F) |
| 1898 | -12.2 C (10.0 F) |
| 1899 | -13.3 C (8.1 F) |
| 1900 | -1.1 C (30.0 F) |
| 1901 | -6.7 C (19.9 F) |
| 1902 | -12.2 C (10.0 F) |
| 1903 | -11.7 C (10.9 F) |
| 1904 | -12.8 C (9.0 F) |
| 1905 | -10.0 C (14.0 F) |
| 1906 | -7.8 C (18.0 F) |
| 1907 | -16.1 C (3.0 F) |
| 1908 | -2.8 C (27.0 F) |
| 1910 | -3.9 C (25.0 F) |
| 1911 | -20.6 C (-5.1 F) |
| 1912 | -16.7 C (1.9 F) |
| 1913 | -18.3 C (-0.9 F) |
| 1914 | -11.1 C (12.0 F) |
| 1915 | -7.8 C (18.0 F) |
| 1916 | -17.2 C (1.0 F) |
| 1917 | -17.2 C (1.0 F) |
| 1918 | -9.4 C (15.1 F) |
| 1919 | -16.7 C (1.9 F) |
| 1920 | -8.9 C (16.0 F) |
| 1921 | -12.2 C (10.0 F) |
| 1922 | -13.9 C (7.0 F) |
| 1923 | -14.4 C (6.1 F) |
| 1924 | -16.1 C (3.0 F) |
| 1925 | -9.4 C (15.1 F) |
| 1926 | -11.1 C (12.0 F) |
| 1927 | -13.3 C (8.1 F) |
| 1928 | -8.9 C (16.0 F) |
| 1929 | -15.6 C (3.9 F) |
| 1930 | -13.3 C (8.1 F) |
| 1931 | -7.2 C (19.0 F) |
| 1932 | -13.3 C (8.1 F) |
| 1933 | -12.2 C (10.0 F) |
| 1934 | -8.3 C (17.1 F) |
| 1935 | -17.2 C (1.0 F) |
| 1939 | n/a |
| 1940 | n/a |
| 1941 | n/a |
| 1942 | n/a |
| 1943 | n/a |
| 1944 | n/a |
| 1945 | n/a |
| 1946 | n/a |
| 1947 | n/a |
| 1948 | n/a |
| 1949 | -5.0 C (23.0 F) |
| 1951 | -17.8 C (0.0 F) |
| 1952 | -16.7 C (1.9 F) |
| 1953 | -8.9 C (16.0 F) |
| 1954 | -16.1 C (3.0 F) |
| 1955 | -14.4 C (6.1 F) |
| 1956 | -16.7 C (1.9 F) |
| 1957 | -15.0 C (5.0 F) |
| 1958 | -7.2 C (19.0 F) |
| 1959 | -13.9 C (7.0 F) |
| 1960 | -6.7 C (19.9 F) |
| 1961 | -6.7 C (19.9 F) |
| 1962 | -12.2 C (10.0 F) |
| 1963 | -13.3 C (8.1 F) |
| 1964 | -19.4 C (-2.9 F) |
| 1965 | -11.1 C (12.0 F) |
| 1966 | -12.8 C (9.0 F) |
| 1967 | -8.9 C (16.0 F) |
| 1968 | -21.7 C (-7.1 F) |
| 1969 | -15.6 C (3.9 F) |
| 1970 | -8.9 C (16.0 F) |
| 1971 | -13.9 C (7.0 F) |
| 1972 | -12.8 C (9.0 F) |
| 1973 | -10.0 C (14.0 F) |
| 1974 | -8.3 C (17.1 F) |
| 1975 | -11.7 C (10.9 F) |
| 1976 | -12.2 C (10.0 F) |
| 1977 | -11.5 C (11.3 F) |
| 1978 | -14.5 C (5.9 F) |
| 1979 | -13.0 C (8.6 F) |
| 1980 | -12.5 C (9.5 F) |
| 1981 | -8.0 C (17.6 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1879 | 49.3 mm (1.9 in) |
| 1880 | 69.9 mm (2.8 in) |
| 1881 | 74.9 mm (2.9 in) |
| 1896 | 65.3 mm (2.6 in) |
| 1897 | 64.3 mm (2.5 in) |
| 1898 | 52.1 mm (2.1 in) |
| 1899 | 40.6 mm (1.6 in) |
| 1900 | 51.3 mm (2.0 in) |
| 1901 | 66.3 mm (2.6 in) |
| 1902 | 58.2 mm (2.3 in) |
| 1903 | 85.6 mm (3.4 in) |
| 1904 | 49.3 mm (1.9 in) |
| 1905 | 52.1 mm (2.1 in) |
| 1906 | 74.2 mm (2.9 in) |
| 1907 | 50.8 mm (2.0 in) |
| 1908 | 31.8 mm (1.3 in) |
| 1910 | 59.7 mm (2.4 in) |
| 1911 | 49.5 mm (1.9 in) |
| 1912 | 41.9 mm (1.6 in) |
| 1913 | 74.7 mm (2.9 in) |
| 1914 | 119.6 mm (4.7 in) |
| 1915 | 44.7 mm (1.8 in) |
| 1916 | 58.4 mm (2.3 in) |
| 1917 | 60.2 mm (2.4 in) |
| 1918 | 75.9 mm (3.0 in) |
| 1919 | 66.3 mm (2.6 in) |
| 1920 | 70.4 mm (2.8 in) |
| 1921 | 73.9 mm (2.9 in) |
| 1922 | 109.0 mm (4.3 in) |
| 1923 | 66.0 mm (2.6 in) |
| 1924 | 101.6 mm (4.0 in) |
| 1925 | 42.7 mm (1.7 in) |
| 1926 | 49.5 mm (1.9 in) |
| 1927 | 44.7 mm (1.8 in) |
| 1928 | 87.6 mm (3.4 in) |
| 1929 | 38.9 mm (1.5 in) |
| 1930 | 48.3 mm (1.9 in) |
| 1931 | 58.9 mm (2.3 in) |
| 1932 | 122.2 mm (4.8 in) |
| 1933 | 72.4 mm (2.9 in) |
| 1934 | 46.7 mm (1.8 in) |
| 1935 | 88.9 mm (3.5 in) |
| 1939 | 41.9 mm (1.6 in) |
| 1940 | 46.5 mm (1.8 in) |
| 1941 | 66.3 mm (2.6 in) |
| 1942 | 40.4 mm (1.6 in) |
| 1943 | 65.0 mm (2.6 in) |
| 1944 | 37.6 mm (1.5 in) |
| 1945 | 118.9 mm (4.7 in) |
| 1946 | 58.7 mm (2.3 in) |
| 1947 | 64.5 mm (2.5 in) |
| 1948 | 43.7 mm (1.7 in) |
| 1949 | 62.5 mm (2.5 in) |
| 1951 | 115.6 mm (4.6 in) |
| 1952 | 45.7 mm (1.8 in) |
| 1953 | 68.1 mm (2.7 in) |
| 1954 | 88.9 mm (3.5 in) |
| 1955 | 115.8 mm (4.6 in) |
| 1956 | 83.8 mm (3.3 in) |
| 1957 | 43.9 mm (1.7 in) |
| 1958 | 73.2 mm (2.9 in) |
| 1959 | 113.8 mm (4.5 in) |
| 1960 | 65.0 mm (2.6 in) |
| 1961 | 64.5 mm (2.5 in) |
| 1962 | 59.9 mm (2.4 in) |
| 1963 | 56.1 mm (2.2 in) |
| 1964 | 77.7 mm (3.1 in) |
| 1965 | 67.1 mm (2.6 in) |
| 1966 | 52.3 mm (2.1 in) |
| 1967 | 40.1 mm (1.6 in) |
| 1968 | 93.2 mm (3.7 in) |
| 1969 | 66.0 mm (2.6 in) |
| 1970 | 48.5 mm (1.9 in) |
| 1971 | 97.5 mm (3.8 in) |
| 1972 | 111.3 mm (4.4 in) |
| 1973 | 79.5 mm (3.1 in) |
| 1974 | 86.4 mm (3.4 in) |
| 1975 | 102.9 mm (4.1 in) |
| 1976 | 67.3 mm (2.6 in) |
| 1977 | 75.2 mm (3.0 in) |
| 1978 | 58.2 mm (2.3 in) |
| 1979 | 122.6 mm (4.8 in) |
| 1980 | 105.8 mm (4.2 in) |
| 1981 | 66.4 mm (2.6 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1879 | 71.6 mm (2.8 in) |
| 1880 | 152.7 mm (6.0 in) |
| 1881 | 143.8 mm (5.7 in) |
| 1896 | 184.1 mm (7.2 in) |
| 1897 | 116.6 mm (4.6 in) |
| 1898 | 115.8 mm (4.6 in) |
| 1899 | 97.3 mm (3.8 in) |
| 1900 | 132.1 mm (5.2 in) |
| 1901 | 119.2 mm (4.7 in) |
| 1902 | 117.2 mm (4.6 in) |
| 1903 | 150.0 mm (5.9 in) |
| 1904 | 92.2 mm (3.6 in) |
| 1905 | 91.9 mm (3.6 in) |
| 1906 | 144.0 mm (5.7 in) |
| 1907 | 158.0 mm (6.2 in) |
| 1908 | 39.9 mm (1.6 in) |
| 1910 | 143.0 mm (5.6 in) |
| 1911 | 104.5 mm (4.1 in) |
| 1912 | 96.3 mm (3.8 in) |
| 1913 | 158.8 mm (6.3 in) |
| 1914 | 231.3 mm (9.1 in) |
| 1915 | 88.4 mm (3.5 in) |
| 1916 | 143.7 mm (5.7 in) |
| 1917 | 181.8 mm (7.2 in) |
| 1918 | 155.4 mm (6.1 in) |
| 1919 | 137.0 mm (5.4 in) |
| 1920 | 162.7 mm (6.4 in) |
| 1921 | 190.5 mm (7.5 in) |
| 1922 | 186.5 mm (7.3 in) |
| 1923 | 128.8 mm (5.1 in) |
| 1924 | 210.6 mm (8.3 in) |
| 1925 | 117.6 mm (4.6 in) |
| 1926 | 102.0 mm (4.0 in) |
| 1927 | 84.1 mm (3.3 in) |
| 1928 | 148.3 mm (5.8 in) |
| 1929 | 76.7 mm (3.0 in) |
| 1930 | 134.3 mm (5.3 in) |
| 1931 | 121.3 mm (4.8 in) |
| 1932 | 216.5 mm (8.5 in) |
| 1933 | 123.5 mm (4.9 in) |
| 1934 | 132.4 mm (5.2 in) |
| 1935 | 254.3 mm (10.0 in) |
| 1939 | 105.7 mm (4.2 in) |
| 1940 | 100.2 mm (3.9 in) |
| 1941 | 113.7 mm (4.5 in) |
| 1942 | 85.1 mm (3.4 in) |
| 1943 | 110.9 mm (4.4 in) |
| 1944 | 92.1 mm (3.6 in) |
| 1945 | 264.4 mm (10.4 in) |
| 1946 | 126.2 mm (5.0 in) |
| 1947 | 150.1 mm (5.9 in) |
| 1948 | 126.8 mm (5.0 in) |
| 1949 | 132.6 mm (5.2 in) |
| 1951 | 327.5 mm (12.9 in) |
| 1952 | 79.0 mm (3.1 in) |
| 1953 | 150.5 mm (5.9 in) |
| 1954 | 183.2 mm (7.2 in) |
| 1955 | 165.1 mm (6.5 in) |
| 1956 | 157.7 mm (6.2 in) |
| 1957 | 99.0 mm (3.9 in) |
| 1958 | 136.9 mm (5.4 in) |
| 1959 | 205.6 mm (8.1 in) |
| 1960 | 113.8 mm (4.5 in) |
| 1961 | 174.4 mm (6.9 in) |
| 1962 | 114.0 mm (4.5 in) |
| 1963 | 127.2 mm (5.0 in) |
| 1964 | 129.7 mm (5.1 in) |
| 1965 | 133.1 mm (5.2 in) |
| 1966 | 143.8 mm (5.7 in) |
| 1967 | 133.9 mm (5.3 in) |
| 1968 | 174.7 mm (6.9 in) |
| 1969 | 121.7 mm (4.8 in) |
| 1970 | 107.7 mm (4.2 in) |
| 1971 | 193.6 mm (7.6 in) |
| 1972 | 231.6 mm (9.1 in) |
| 1973 | 103.6 mm (4.1 in) |
| 1974 | 174.0 mm (6.9 in) |
| 1975 | 240.0 mm (9.4 in) |
| 1976 | 133.4 mm (5.3 in) |
| 1977 | 125.2 mm (4.9 in) |
| 1978 | 118.6 mm (4.7 in) |
| 1979 | 279.9 mm (11.0 in) |
| 1980 | 164.2 mm (6.5 in) |
| 1981 | 141.4 mm (5.6 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1879 | 34 days |
| 1880 | 24 days |
| 1881 | 21 days |
| 1896 | 33 days |
| 1897 | 20 days |
| 1898 | 30 days |
| 1899 | 16 days |
| 1900 | 13 days |
| 1901 | 43 days |
| 1902 | 14 days |
| 1903 | 23 days |
| 1904 | 30 days |
| 1905 | 28 days |
| 1906 | 34 days |
| 1907 | 21 days |
| 1908 | 11 days |
| 1910 | 20 days |
| 1911 | 28 days |
| 1912 | 22 days |
| 1913 | 14 days |
| 1914 | 29 days |
| 1915 | 50 days |
| 1916 | 19 days |
| 1917 | 22 days |
| 1918 | 38 days |
| 1919 | 29 days |
| 1920 | 43 days |
| 1921 | 28 days |
| 1922 | 48 days |
| 1923 | 43 days |
| 1924 | 17 days |
| 1925 | 27 days |
| 1926 | 17 days |
| 1927 | 29 days |
| 1928 | 37 days |
| 1929 | 22 days |
| 1930 | 41 days |
| 1931 | 42 days |
| 1932 | 15 days |
| 1933 | 15 days |
| 1934 | 31 days |
| 1935 | 3 days |
| 1939 | 36 days |
| 1940 | 37 days |
| 1941 | 21 days |
| 1942 | 38 days |
| 1943 | 21 days |
| 1944 | 25 days |
| 1945 | 19 days |
| 1946 | 22 days |
| 1947 | 21 days |
| 1948 | 12 days |
| 1949 | 31 days |
| 1951 | 36 days |
| 1952 | 28 days |
| 1953 | 20 days |
| 1954 | 16 days |
| 1955 | 24 days |
| 1956 | 26 days |
| 1957 | 18 days |
| 1958 | 26 days |
| 1959 | 17 days |
| 1960 | 50 days |
| 1961 | 39 days |
| 1962 | 15 days |
| 1963 | 20 days |
| 1964 | 10 days |
| 1965 | 21 days |
| 1966 | 17 days |
| 1967 | 16 days |
| 1968 | 24 days |
| 1969 | 24 days |
| 1970 | 24 days |
| 1971 | 41 days |
| 1972 | 28 days |
| 1973 | 24 days |
| 1974 | 36 days |
| 1975 | 17 days |
| 1976 | 16 days |
| 1977 | 23 days |
| 1978 | 14 days |
| 1979 | 32 days |
| 1980 | 14 days |
| 1981 | 20 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
60 years with a frostAcross 60 years with a frost, the median last spring frost at Chilliwack falls on 13 April and the median first autumn frost on 1 November, which leaves a median of 203 days between them.
In 1951 to 1980 the median growing season was 216 days. That is 30 days more than in 1896 to 1934.
Fitted over all years, the growing season changes by +6.2 days per decade at this station.
| Measure | Median, all years | Earliest period (1896 to 1934) | Recent period (1951 to 1980) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 13 April | 19 April | 6 April | 13 days earlier | -2.7 days per decade |
| First autumn frost | 1 November | 19 October | 9 November | 21 days later | +3.5 days per decade |
| Growing days | 203 days | 186 days | 216 days | 30 days more | +6.2 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
76 years, 1880 to 1981A day with at least 66.2 mm (2.6 in) of rain is expected about once in 2 years. A day with at least 148.1 mm (5.8 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 66.2 mm (2.6 in) | |
| 5 years | 87.2 mm (3.4 in) | |
| 10 years | 101.5 mm (4.0 in) | |
| 25 years | 120.0 mm (4.7 in) | |
| 50 years | 134.0 mm (5.3 in) | |
| 100 years | 148.1 mm (5.8 in) | Longer than the 76 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, 76 years of values from 1880 to 1981.
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: 122.6 mm (4.8 in) in 1979; 122.2 mm (4.8 in) in 1932; 119.6 mm (4.7 in) in 1914.
Station Changes
1 suspectedOne change was suspected in the annual mean temperature of Chilliwack, at 1962. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1962 ran 0.2 C (0.3 F) higher than in the years before (possible change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1962 | +0.2 | +0.3 | possible | 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).