Clayoquot Weather Records (CA001031650)
Record envelope, standing records and threshold days for Clayoquot (CA001031650), British Columbia, Canada, with 64 years of record.
Key Facts for Clayoquot
- Clayoquot (CA001031650) is a weather station in British Columbia, Canada at 49.15 latitude and -125.90 longitude, 23 m (75 ft) above sea level.
- The station reports from 1896 to 1959, 64 years of record.
- 1,464 records set at Clayoquot still stand.
- Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
- Clayoquot set a daily record high maximum temperature of 13.3 C (55.9 F) on 19 December 1958.
About the Station
- Location: British Columbia, Canada, 49.15 latitude, -125.90 longitude.
- Elevation: 23 m (75 ft).
- Period of record: 1896 to 1959, 64 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 | 17.8 C (64.0 F) | -10.6 C (12.9 F) | n/a | n/a |
| Feb | 19.4 C (66.9 F) | -11.1 C (12.0 F) | n/a | n/a |
| Mar | 19.4 C (66.9 F) | -6.1 C (21.0 F) | n/a | n/a |
| Apr | 24.4 C (75.9 F) | -3.3 C (26.1 F) | n/a | n/a |
| May | 29.4 C (84.9 F) | -1.1 C (30.0 F) | n/a | n/a |
| Jun | 32.2 C (90.0 F) | 1.1 C (34.0 F) | n/a | n/a |
| Jul | 35.6 C (96.1 F) | 3.3 C (37.9 F) | n/a | n/a |
| Aug | 30.6 C (87.1 F) | 3.3 C (37.9 F) | n/a | n/a |
| Sep | 30.6 C (87.1 F) | 1.1 C (34.0 F) | n/a | n/a |
| Oct | 25.6 C (78.1 F) | -2.8 C (27.0 F) | n/a | n/a |
| Nov | 20.6 C (69.1 F) | -7.2 C (19.0 F) | n/a | n/a |
| Dec | 19.4 C (66.9 F) | -12.2 C (10.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1896 | 2 |
| 1897 | 1 |
| 1898 | 14 |
| 1899 | 11 |
| 1900 | 25 |
| 1901 | 46 |
| 1902 | 34 |
| 1903 | 36 |
| 1904 | 40 |
| 1905 | 26 |
| 1906 | 32 |
| 1907 | 19 |
| 1908 | 30 |
| 1909 | 33 |
| 1910 | 23 |
| 1911 | 23 |
| 1912 | 9 |
| 1913 | 11 |
| 1914 | 11 |
| 1915 | 12 |
| 1916 | 44 |
| 1917 | 31 |
| 1918 | 71 |
| 1919 | 86 |
| 1920 | 10 |
| 1921 | 16 |
| 1922 | 59 |
| 1923 | 32 |
| 1924 | 25 |
| 1925 | 84 |
| 1926 | 8 |
| 1927 | 3 |
| 1928 | 10 |
| 1929 | 4 |
| 1930 | 10 |
| 1931 | 46 |
| 1932 | 21 |
| 1933 | 8 |
| 1934 | 8 |
| 1935 | 10 |
| 1936 | 28 |
| 1937 | 21 |
| 1938 | 22 |
| 1939 | 21 |
| 1940 | 27 |
| 1941 | 32 |
| 1942 | 18 |
| 1943 | 28 |
| 1944 | 56 |
| 1945 | 17 |
| 1946 | 6 |
| 1947 | 21 |
| 1948 | 14 |
| 1949 | 24 |
| 1950 | 23 |
| 1951 | 10 |
| 1952 | 14 |
| 1953 | 7 |
| 1954 | 3 |
| 1955 | 16 |
| 1956 | 7 |
| 1957 | 11 |
| 1958 | 14 |
All-Time Record Progression
2 new records| Date | Kind | Detail |
|---|---|---|
| 1929-01-28 | Record low maximum temperature | Record low maximum temperature -2.8 C (27.0 F) |
| 1950-01-14 | Record low maximum temperature | Record low maximum temperature -4.4 C (24.1 F) |
Wettest Day of Each Month
Jan: 183.6 mm (7.2 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 183.6 mm (7.2 in) | 29 January 1910 |
| Feb | 139.2 mm (5.5 in) | 11 February 1939 |
| Mar | 134.6 mm (5.3 in) | 1 March 1946 |
| Apr | 133.4 mm (5.3 in) | 21 April 1946 |
| May | 166.1 mm (6.5 in) | 15 May 1901 |
| Jun | 84.8 mm (3.3 in) | 18 June 1898 |
| Jul | 88.9 mm (3.5 in) | 21 July 1945 |
| Aug | 148.1 mm (5.8 in) | 14 August 1909 |
| Sep | 102.1 mm (4.0 in) | 27 September 1957 |
| Oct | 112.8 mm (4.4 in) | 12 October 1914 |
| Nov | 142.0 mm (5.6 in) | 11 November 1905 |
| Dec | 127.0 mm (5.0 in) | 4 December 1907 |
Period of Record Coverage
1896 to 1959| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1896 | 26 | 7% | No |
| 1897 | 55 | 15% | No |
| 1898 | 214 | 59% | No |
| 1899 | 181 | 50% | No |
| 1900 | 184 | 50% | No |
| 1901 | 365 | 100% | Yes |
| 1902 | 365 | 100% | Yes |
| 1903 | 365 | 100% | Yes |
| 1904 | 356 | 97% | Yes |
| 1905 | 365 | 100% | Yes |
| 1906 | 365 | 100% | Yes |
| 1907 | 365 | 100% | Yes |
| 1908 | 364 | 99% | Yes |
| 1909 | 365 | 100% | Yes |
| 1910 | 365 | 100% | Yes |
| 1911 | 365 | 100% | Yes |
| 1912 | 366 | 100% | Yes |
| 1913 | 365 | 100% | Yes |
| 1914 | 365 | 100% | Yes |
| 1915 | 365 | 100% | Yes |
| 1916 | 366 | 100% | Yes |
| 1917 | 334 | 92% | Yes |
| 1918 | 365 | 100% | Yes |
| 1919 | 364 | 100% | Yes |
| 1920 | 366 | 100% | Yes |
| 1921 | 365 | 100% | Yes |
| 1922 | 365 | 100% | Yes |
| 1923 | 365 | 100% | Yes |
| 1924 | 365 | 100% | Yes |
| 1925 | 352 | 96% | Yes |
| 1926 | 365 | 100% | Yes |
| 1927 | 365 | 100% | Yes |
| 1928 | 366 | 100% | Yes |
| 1929 | 364 | 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 | 363 | 99% | 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 | 364 | 100% | Yes |
| 1944 | 366 | 100% | Yes |
| 1945 | 351 | 96% | Yes |
| 1946 | 351 | 96% | Yes |
| 1947 | 320 | 88% | No |
| 1948 | 291 | 80% | No |
| 1949 | 231 | 63% | No |
| 1950 | 339 | 93% | Yes |
| 1951 | 345 | 95% | Yes |
| 1952 | 300 | 82% | No |
| 1953 | 351 | 96% | Yes |
| 1954 | 349 | 96% | Yes |
| 1955 | 346 | 95% | Yes |
| 1956 | 353 | 96% | Yes |
| 1957 | 331 | 91% | Yes |
| 1958 | 280 | 77% | No |
| 1959 | 21 | 6% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 19 December 1958 | Clayoquot, CA | daily high max | 13.3 C (55.9 F) | 0.5 C (0.9 F) | 28 years | 15 of 100 (Routine) |
| 17 December 1958 | Clayoquot, CA | daily rain | 68.6 mm (2.7 in) | 16.3 mm (0.6 in) | 7 years | 16 of 100 (Routine) |
| 15 December 1958 | Clayoquot, CA | daily high max | 16.1 C (61.0 F) | 3.3 C (5.9 F) | 59 years | 35 of 100 (Notable) |
| 6 November 1958 | Clayoquot, CA | daily rain | 39.4 mm (1.6 in) | 1.3 mm (0.05 in) | 33 years | 16 of 100 (Routine) |
| 13 October 1958 | Clayoquot, CA | daily rain | 93.5 mm (3.7 in) | 14.3 mm (0.6 in) | 57 years | 30 of 100 (Routine) |
| 11 October 1958 | Clayoquot, CA | daily rain | 66.0 mm (2.6 in) | 10.1 mm (0.4 in) | 44 years | 24 of 100 (Routine) |
| 2 October 1958 | Clayoquot, CA | daily high min (Tie) | 13.9 C (57.0 F) | tie | 0 years | 1 of 100 (Routine) |
| 20 September 1958 | Clayoquot, CA | daily rain | 61.5 mm (2.4 in) | 0.8 mm (0.03 in) | 36 years | 17 of 100 (Routine) |
| 20 September 1958 | Clayoquot, CA | daily low max (Tie) | 13.3 C (55.9 F) | tie | 27 years | 3 of 100 (Routine) |
| 15 September 1958 | Clayoquot, CA | daily rain | 85.1 mm (3.4 in) | 51.3 mm (2.0 in) | 13 years | 39 of 100 (Notable) |
| 17 August 1958 | Clayoquot, CA | daily high min (Tie) | 14.4 C (57.9 F) | tie | 49 years | 5 of 100 (Routine) |
| 15 August 1958 | Clayoquot, CA | daily high min (Tie) | 13.9 C (57.0 F) | tie | 32 years | 3 of 100 (Routine) |
| 13 August 1958 | Clayoquot, CA | daily high min | 15.0 C (59.0 F) | 1.7 C (3.1 F) | 52 years | 29 of 100 (Routine) |
| 6 August 1958 | Clayoquot, CA | daily rain | 29.7 mm (1.2 in) | 3.0 mm (0.12 in) | 0 years | 7 of 100 (Routine) |
| 5 August 1958 | Clayoquot, CA | daily high min (Tie) | 14.4 C (57.9 F) | tie | 4 years | 1 of 100 (Routine) |
| 28 July 1958 | Clayoquot, CA | daily high min (Tie) | 13.9 C (57.0 F) | tie | 37 years | 4 of 100 (Routine) |
| 27 July 1958 | Clayoquot, CA | daily high max (Tie) | 27.2 C (81.0 F) | tie | 21 years | 3 of 100 (Routine) |
| 23 June 1958 | Clayoquot, CA | daily high min (Tie) | 13.3 C (55.9 F) | tie | 32 years | 3 of 100 (Routine) |
| 22 June 1958 | Clayoquot, CA | daily high min | 13.9 C (57.0 F) | 0.6 C (1.1 F) | 40 years | 20 of 100 (Routine) |
| 20 June 1958 | Clayoquot, CA | daily high min (Tie) | 13.3 C (55.9 F) | tie | 32 years | 3 of 100 (Routine) |
Climate Trend
40 complete years, 1901 to 1954| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1901 | 9.3 C | -0.27 C |
| 1902 | 9.6 C | -0.04 C |
| 1903 | 8.7 C | -0.88 C |
| 1904 | 9.1 C | -0.47 C |
| 1905 | 9.7 C | +0.06 C |
| 1906 | 10.4 C | +0.79 C |
| 1907 | 10.1 C | +0.47 C |
| 1908 | 9.4 C | -0.21 C |
| 1910 | 9.0 C | -0.57 C |
| 1911 | 8.7 C | -0.89 C |
| 1912 | 9.6 C | +0.03 C |
| 1913 | 9.3 C | -0.36 C |
| 1914 | 10.0 C | +0.37 C |
| 1915 | 10.3 C | +0.64 C |
| 1916 | 8.1 C | -1.47 C |
| 1918 | 8.0 C | -1.65 C |
| 1919 | 7.4 C | -2.25 C |
| 1920 | 8.9 C | -0.70 C |
| 1921 | 8.7 C | -0.89 C |
| 1922 | 7.3 C | -2.33 C |
| 1923 | 8.4 C | -1.19 C |
| 1926 | 9.9 C | +0.24 C |
| 1927 | 8.6 C | -1.02 C |
| 1928 | 9.1 C | -0.53 C |
| 1929 | 9.7 C | +0.11 C |
| 1930 | 10.2 C | +0.57 C |
| 1931 | 10.7 C | +1.13 C |
| 1932 | 10.3 C | +0.69 C |
| 1933 | 10.0 C | +0.42 C |
| 1934 | 10.4 C | +0.80 C |
| 1935 | 9.7 C | +0.10 C |
| 1937 | 9.5 C | -0.07 C |
| 1938 | 10.2 C | +0.63 C |
| 1939 | 10.9 C | +1.29 C |
| 1940 | 11.9 C | +2.25 C |
| 1941 | 12.1 C | +2.48 C |
| 1942 | 11.3 C | +1.70 C |
| 1943 | 10.7 C | +1.11 C |
| 1946 | 9.8 C | +0.14 C |
| 1954 | 9.5 C | -0.10 C |
The annual mean temperature here has risen by 0.3 C (0.1 to 0.6) per decade over 1901 to 1954. In Fahrenheit: 0.6 F (0.2 to 1.0) per decade. The slope is a straight line fitted to 40 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.3 C (0.1 to 0.6) per decade | 0.6 F (0.2 to 1.0) per decade | 1901 to 1954 | 40 | Rise |
| Mean daily maximum | 0.28 C (-0.05 to 0.61) per decade | 0.5 F (-0.1 to 1.1) per decade | 1901 to 1954 | 40 | Not clearly different from zero |
| Mean daily minimum | 0.4 C (0.2 to 0.6) per decade | 0.7 F (0.3 to 1.0) per decade | 1901 to 1954 | 40 | 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
1896 to 1959| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 35.6 C (96.1 F) | 1908 | 27.0 C (80.5 F) | 64 |
| Coldest night (TNn) | -12.2 C (10.0 F) | 1924 | -5.0 C (23.0 F) | 64 |
| Wettest day (Rx1day) | 183.6 mm (7.2 in) | 1910 | 101.7 mm (4.0 in) | 64 |
| Wettest five days (Rx5day) | 396.0 mm (15.6 in) | 1916 | 216.6 mm (8.5 in) | 64 |
| Longest dry spell (CDD) | 45 days | 1922 | 21 days | 64 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1896 | 10.6 C (51.1 F) |
| 1897 | 12.2 C (54.0 F) |
| 1898 | 28.3 C (82.9 F) |
| 1899 | 20.0 C (68.0 F) |
| 1900 | 25.6 C (78.1 F) |
| 1901 | 27.8 C (82.0 F) |
| 1902 | 30.6 C (87.1 F) |
| 1903 | 25.0 C (77.0 F) |
| 1904 | 27.2 C (81.0 F) |
| 1905 | 25.0 C (77.0 F) |
| 1906 | 27.2 C (81.0 F) |
| 1907 | 28.9 C (84.0 F) |
| 1908 | 35.6 C (96.1 F) |
| 1909 | 24.4 C (75.9 F) |
| 1910 | 26.7 C (80.1 F) |
| 1911 | 27.8 C (82.0 F) |
| 1912 | 29.4 C (84.9 F) |
| 1913 | 28.3 C (82.9 F) |
| 1914 | 29.4 C (84.9 F) |
| 1915 | 29.4 C (84.9 F) |
| 1916 | 28.9 C (84.0 F) |
| 1917 | 22.2 C (72.0 F) |
| 1918 | 21.1 C (70.0 F) |
| 1919 | 21.7 C (71.1 F) |
| 1920 | 25.0 C (77.0 F) |
| 1921 | 21.1 C (70.0 F) |
| 1922 | 23.9 C (75.0 F) |
| 1923 | 25.0 C (77.0 F) |
| 1924 | 23.3 C (73.9 F) |
| 1925 | 31.1 C (88.0 F) |
| 1926 | 25.6 C (78.1 F) |
| 1927 | 25.6 C (78.1 F) |
| 1928 | 24.4 C (75.9 F) |
| 1929 | 26.1 C (79.0 F) |
| 1930 | 25.0 C (77.0 F) |
| 1931 | 22.8 C (73.0 F) |
| 1932 | 25.6 C (78.1 F) |
| 1933 | 27.2 C (81.0 F) |
| 1934 | 25.0 C (77.0 F) |
| 1935 | 25.6 C (78.1 F) |
| 1936 | 27.2 C (81.0 F) |
| 1937 | 27.8 C (82.0 F) |
| 1938 | 28.9 C (84.0 F) |
| 1939 | 30.0 C (86.0 F) |
| 1940 | 30.0 C (86.0 F) |
| 1941 | 33.9 C (93.0 F) |
| 1942 | 30.6 C (87.1 F) |
| 1943 | 27.2 C (81.0 F) |
| 1944 | 32.2 C (90.0 F) |
| 1945 | 26.7 C (80.1 F) |
| 1946 | 28.3 C (82.9 F) |
| 1947 | 27.8 C (82.0 F) |
| 1948 | 28.3 C (82.9 F) |
| 1949 | 27.8 C (82.0 F) |
| 1950 | 26.7 C (80.1 F) |
| 1951 | 27.8 C (82.0 F) |
| 1952 | 27.8 C (82.0 F) |
| 1953 | 26.1 C (79.0 F) |
| 1954 | 24.4 C (75.9 F) |
| 1955 | 30.0 C (86.0 F) |
| 1956 | 26.1 C (79.0 F) |
| 1957 | 25.6 C (78.1 F) |
| 1958 | 27.8 C (82.0 F) |
| 1959 | 12.2 C (54.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1896 | -1.1 C (30.0 F) |
| 1897 | -1.7 C (28.9 F) |
| 1898 | -2.2 C (28.0 F) |
| 1899 | -7.2 C (19.0 F) |
| 1900 | -5.0 C (23.0 F) |
| 1901 | -4.4 C (24.1 F) |
| 1902 | -7.8 C (18.0 F) |
| 1903 | -5.6 C (21.9 F) |
| 1904 | -5.6 C (21.9 F) |
| 1905 | -4.4 C (24.1 F) |
| 1906 | -6.1 C (21.0 F) |
| 1907 | -9.4 C (15.1 F) |
| 1908 | -5.0 C (23.0 F) |
| 1909 | -10.6 C (12.9 F) |
| 1910 | -5.6 C (21.9 F) |
| 1911 | -8.3 C (17.1 F) |
| 1912 | -3.9 C (25.0 F) |
| 1913 | -6.7 C (19.9 F) |
| 1914 | -2.2 C (28.0 F) |
| 1915 | -2.8 C (27.0 F) |
| 1916 | -7.8 C (18.0 F) |
| 1917 | -10.0 C (14.0 F) |
| 1918 | -3.9 C (25.0 F) |
| 1919 | -9.4 C (15.1 F) |
| 1920 | -3.3 C (26.1 F) |
| 1921 | -6.7 C (19.9 F) |
| 1922 | -5.0 C (23.0 F) |
| 1923 | -6.7 C (19.9 F) |
| 1924 | -12.2 C (10.0 F) |
| 1925 | -1.1 C (30.0 F) |
| 1926 | -5.0 C (23.0 F) |
| 1927 | -6.1 C (21.0 F) |
| 1928 | -1.7 C (28.9 F) |
| 1929 | -5.6 C (21.9 F) |
| 1930 | -4.4 C (24.1 F) |
| 1931 | -2.2 C (28.0 F) |
| 1932 | -10.6 C (12.9 F) |
| 1933 | -11.1 C (12.0 F) |
| 1934 | 0.6 C (33.1 F) |
| 1935 | -6.7 C (19.9 F) |
| 1936 | -2.8 C (27.0 F) |
| 1937 | -6.7 C (19.9 F) |
| 1938 | -3.9 C (25.0 F) |
| 1939 | -2.8 C (27.0 F) |
| 1940 | -1.7 C (28.9 F) |
| 1941 | -3.3 C (26.1 F) |
| 1942 | -2.8 C (27.0 F) |
| 1943 | -7.8 C (18.0 F) |
| 1944 | -2.8 C (27.0 F) |
| 1945 | -1.7 C (28.9 F) |
| 1946 | -4.4 C (24.1 F) |
| 1947 | -6.1 C (21.0 F) |
| 1948 | -2.2 C (28.0 F) |
| 1949 | -5.6 C (21.9 F) |
| 1950 | -10.6 C (12.9 F) |
| 1951 | -5.6 C (21.9 F) |
| 1952 | -2.8 C (27.0 F) |
| 1953 | 0.0 C (32.0 F) |
| 1954 | -3.9 C (25.0 F) |
| 1955 | -7.2 C (19.0 F) |
| 1956 | -4.4 C (24.1 F) |
| 1957 | -5.0 C (23.0 F) |
| 1958 | -1.7 C (28.9 F) |
| 1959 | -3.3 C (26.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1896 | 113.0 mm (4.4 in) |
| 1897 | 62.5 mm (2.5 in) |
| 1898 | 84.8 mm (3.3 in) |
| 1899 | 93.5 mm (3.7 in) |
| 1900 | 101.3 mm (4.0 in) |
| 1901 | 166.1 mm (6.5 in) |
| 1902 | 103.1 mm (4.1 in) |
| 1903 | 111.0 mm (4.4 in) |
| 1904 | 109.5 mm (4.3 in) |
| 1905 | 142.0 mm (5.6 in) |
| 1906 | 117.3 mm (4.6 in) |
| 1907 | 127.0 mm (5.0 in) |
| 1908 | 120.1 mm (4.7 in) |
| 1909 | 148.1 mm (5.8 in) |
| 1910 | 183.6 mm (7.2 in) |
| 1911 | 85.6 mm (3.4 in) |
| 1912 | 89.2 mm (3.5 in) |
| 1913 | 114.3 mm (4.5 in) |
| 1914 | 118.1 mm (4.6 in) |
| 1915 | 85.1 mm (3.4 in) |
| 1916 | 125.7 mm (4.9 in) |
| 1917 | 105.4 mm (4.1 in) |
| 1918 | 118.1 mm (4.6 in) |
| 1919 | 105.4 mm (4.1 in) |
| 1920 | 115.6 mm (4.6 in) |
| 1921 | 103.1 mm (4.1 in) |
| 1922 | 99.6 mm (3.9 in) |
| 1923 | 102.1 mm (4.0 in) |
| 1924 | 92.2 mm (3.6 in) |
| 1925 | 83.8 mm (3.3 in) |
| 1926 | 69.1 mm (2.7 in) |
| 1927 | 57.7 mm (2.3 in) |
| 1928 | 72.6 mm (2.9 in) |
| 1929 | 83.8 mm (3.3 in) |
| 1930 | 74.9 mm (2.9 in) |
| 1931 | 52.1 mm (2.1 in) |
| 1932 | 54.1 mm (2.1 in) |
| 1933 | 66.0 mm (2.6 in) |
| 1934 | 69.1 mm (2.7 in) |
| 1935 | 72.9 mm (2.9 in) |
| 1936 | 64.0 mm (2.5 in) |
| 1937 | 15.5 mm (0.6 in) |
| 1938 | 39.4 mm (1.6 in) |
| 1939 | 139.2 mm (5.5 in) |
| 1940 | 99.8 mm (3.9 in) |
| 1941 | 64.3 mm (2.5 in) |
| 1942 | 99.6 mm (3.9 in) |
| 1943 | 110.5 mm (4.4 in) |
| 1944 | 126.2 mm (5.0 in) |
| 1945 | 122.4 mm (4.8 in) |
| 1946 | 134.6 mm (5.3 in) |
| 1947 | 109.5 mm (4.3 in) |
| 1948 | 133.4 mm (5.3 in) |
| 1949 | 84.3 mm (3.3 in) |
| 1950 | 97.8 mm (3.9 in) |
| 1951 | 95.0 mm (3.7 in) |
| 1952 | 121.9 mm (4.8 in) |
| 1953 | 98.3 mm (3.9 in) |
| 1954 | 128.3 mm (5.1 in) |
| 1955 | 96.5 mm (3.8 in) |
| 1956 | 116.8 mm (4.6 in) |
| 1957 | 116.8 mm (4.6 in) |
| 1958 | 120.7 mm (4.8 in) |
| 1959 | 69.9 mm (2.8 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1896 | 314.3 mm (12.4 in) |
| 1897 | 166.1 mm (6.5 in) |
| 1898 | 139.3 mm (5.5 in) |
| 1899 | 211.1 mm (8.3 in) |
| 1900 | 218.0 mm (8.6 in) |
| 1901 | 265.5 mm (10.5 in) |
| 1902 | 203.9 mm (8.0 in) |
| 1903 | 264.4 mm (10.4 in) |
| 1904 | 266.5 mm (10.5 in) |
| 1905 | 231.4 mm (9.1 in) |
| 1906 | 299.4 mm (11.8 in) |
| 1907 | 297.9 mm (11.7 in) |
| 1908 | 322.1 mm (12.7 in) |
| 1909 | 286.6 mm (11.3 in) |
| 1910 | 249.2 mm (9.8 in) |
| 1911 | 208.8 mm (8.2 in) |
| 1912 | 189.8 mm (7.5 in) |
| 1913 | 237.0 mm (9.3 in) |
| 1914 | 261.4 mm (10.3 in) |
| 1915 | 195.4 mm (7.7 in) |
| 1916 | 396.0 mm (15.6 in) |
| 1917 | 228.9 mm (9.0 in) |
| 1918 | 348.5 mm (13.7 in) |
| 1919 | 220.2 mm (8.7 in) |
| 1920 | 290.8 mm (11.4 in) |
| 1921 | 218.3 mm (8.6 in) |
| 1922 | 219.4 mm (8.6 in) |
| 1923 | 268.0 mm (10.6 in) |
| 1924 | 308.1 mm (12.1 in) |
| 1925 | 204.5 mm (8.1 in) |
| 1926 | 169.2 mm (6.7 in) |
| 1927 | 219.0 mm (8.6 in) |
| 1928 | 188.9 mm (7.4 in) |
| 1929 | 136.2 mm (5.4 in) |
| 1930 | 167.6 mm (6.6 in) |
| 1931 | 140.7 mm (5.5 in) |
| 1932 | 159.8 mm (6.3 in) |
| 1933 | 167.7 mm (6.6 in) |
| 1934 | 132.4 mm (5.2 in) |
| 1935 | 159.0 mm (6.3 in) |
| 1936 | 186.9 mm (7.4 in) |
| 1937 | 37.0 mm (1.5 in) |
| 1938 | 92.1 mm (3.6 in) |
| 1939 | 340.3 mm (13.4 in) |
| 1940 | 214.2 mm (8.4 in) |
| 1941 | 109.7 mm (4.3 in) |
| 1942 | 156.5 mm (6.2 in) |
| 1943 | 203.1 mm (8.0 in) |
| 1944 | 320.1 mm (12.6 in) |
| 1945 | 206.8 mm (8.1 in) |
| 1946 | 246.7 mm (9.7 in) |
| 1947 | 215.1 mm (8.5 in) |
| 1948 | 227.9 mm (9.0 in) |
| 1949 | 144.6 mm (5.7 in) |
| 1950 | 191.2 mm (7.5 in) |
| 1951 | 97.1 mm (3.8 in) |
| 1952 | 254.1 mm (10.0 in) |
| 1953 | 249.0 mm (9.8 in) |
| 1954 | 299.2 mm (11.8 in) |
| 1955 | 185.0 mm (7.3 in) |
| 1956 | 204.2 mm (8.0 in) |
| 1957 | 227.6 mm (9.0 in) |
| 1958 | 249.7 mm (9.8 in) |
| 1959 | 69.9 mm (2.8 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1896 | 3 days |
| 1897 | 6 days |
| 1898 | 33 days |
| 1899 | 10 days |
| 1900 | 9 days |
| 1901 | 21 days |
| 1902 | 16 days |
| 1903 | 15 days |
| 1904 | 39 days |
| 1905 | 32 days |
| 1906 | 32 days |
| 1907 | 23 days |
| 1908 | 19 days |
| 1909 | 13 days |
| 1910 | 20 days |
| 1911 | 18 days |
| 1912 | 23 days |
| 1913 | 14 days |
| 1914 | 29 days |
| 1915 | 26 days |
| 1916 | 28 days |
| 1917 | 20 days |
| 1918 | 31 days |
| 1919 | 19 days |
| 1920 | 22 days |
| 1921 | 15 days |
| 1922 | 45 days |
| 1923 | 25 days |
| 1924 | 29 days |
| 1925 | 31 days |
| 1926 | 20 days |
| 1927 | 28 days |
| 1928 | 24 days |
| 1929 | 32 days |
| 1930 | 30 days |
| 1931 | 26 days |
| 1932 | 15 days |
| 1933 | 22 days |
| 1934 | 30 days |
| 1935 | 18 days |
| 1936 | 14 days |
| 1937 | 31 days |
| 1938 | 19 days |
| 1939 | 23 days |
| 1940 | 17 days |
| 1941 | 18 days |
| 1942 | 22 days |
| 1943 | 20 days |
| 1944 | 18 days |
| 1945 | 18 days |
| 1946 | 19 days |
| 1947 | 15 days |
| 1948 | 15 days |
| 1949 | 21 days |
| 1950 | 24 days |
| 1951 | 27 days |
| 1952 | 22 days |
| 1953 | 23 days |
| 1954 | 13 days |
| 1955 | 16 days |
| 1956 | 15 days |
| 1957 | 22 days |
| 1958 | 31 days |
| 1959 | 4 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
37 years with a frostAcross 37 years with a frost, the median last spring frost at Clayoquot falls on 11 April and the median first autumn frost on 13 November, which leaves a median of 225 days between them.
Fitted over all years, the growing season changes by +12.5 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1908 to 1954) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 11 April | n/a | 30 March | n/a | -8.3 days per decade |
| First autumn frost | 13 November | n/a | 14 November | n/a | +4.1 days per decade |
| Growing days | 225 days | n/a | 228 days | n/a | +12.5 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
54 years, 1901 to 1957A day with at least 101.8 mm (4.0 in) of rain is expected about once in 2 years. A day with at least 162.7 mm (6.4 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 101.8 mm (4.0 in) | |
| 5 years | 127.8 mm (5.0 in) | |
| 10 years | 140.1 mm (5.5 in) | |
| 25 years | 151.5 mm (6.0 in) | |
| 50 years | 157.9 mm (6.2 in) | |
| 100 years | 162.7 mm (6.4 in) | Longer than the 54 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, 54 years of values from 1901 to 1957.
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: 183.6 mm (7.2 in) in 1910; 166.1 mm (6.5 in) in 1901; 148.1 mm (5.8 in) in 1909.
Station Changes
2 suspected2 changes were suspected in the annual mean temperature of Clayoquot, at 1918 and 1929. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1918 ran 1.2 C (2.1 F) lower than in the years before (likely change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1929 ran 1.5 C (2.7 F) higher than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1918 | -1.2 | -2.1 | likely | 5 |
| 1929 | +1.5 | +2.7 | 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).