Terrace Weather Records (CA001068100)
Record envelope, standing records and threshold days for Terrace (CA001068100), British Columbia, Canada, with 42 years of record.
Key Facts for Terrace
- Terrace (CA001068100) is a weather station in British Columbia, Canada at 54.52 latitude and -128.58 longitude, 5 m (16 ft) above sea level.
- The station reports from 1912 to 1953, 42 years of record.
- 1,464 records set at Terrace still stand.
- Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
- Terrace tied a daily record high minimum temperature of 1.7 C (35.1 F) on 7 March 1953.
About the Station
- Location: British Columbia, Canada, 54.52 latitude, -128.58 longitude.
- Elevation: 5 m (16 ft).
- Period of record: 1912 to 1953, 42 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 | 11.1 C (52.0 F) | -30.0 C (-22.0 F) | n/a | n/a |
| Feb | 13.9 C (57.0 F) | -27.2 C (-17.0 F) | n/a | n/a |
| Mar | 18.9 C (66.0 F) | -18.9 C (-2.0 F) | n/a | n/a |
| Apr | 26.7 C (80.1 F) | -7.8 C (18.0 F) | n/a | n/a |
| May | 33.3 C (91.9 F) | -6.7 C (19.9 F) | n/a | n/a |
| Jun | 35.0 C (95.0 F) | -1.1 C (30.0 F) | n/a | n/a |
| Jul | 37.2 C (99.0 F) | 1.7 C (35.1 F) | n/a | n/a |
| Aug | 36.7 C (98.1 F) | -2.8 C (27.0 F) | n/a | n/a |
| Sep | 32.8 C (91.0 F) | -5.6 C (21.9 F) | n/a | n/a |
| Oct | 23.3 C (73.9 F) | -13.9 C (7.0 F) | n/a | n/a |
| Nov | 18.9 C (66.0 F) | -15.0 C (5.0 F) | n/a | n/a |
| Dec | 11.1 C (52.0 F) | -26.1 C (-15.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1912 | 2 |
| 1913 | 36 |
| 1914 | 35 |
| 1915 | 46 |
| 1916 | 45 |
| 1917 | 51 |
| 1918 | 23 |
| 1919 | 46 |
| 1920 | 52 |
| 1921 | 32 |
| 1922 | 37 |
| 1923 | 27 |
| 1924 | 52 |
| 1925 | 38 |
| 1926 | 78 |
| 1927 | 37 |
| 1928 | 27 |
| 1929 | 30 |
| 1930 | 43 |
| 1931 | 33 |
| 1932 | 18 |
| 1933 | 52 |
| 1934 | 38 |
| 1935 | 43 |
| 1936 | 57 |
| 1937 | 29 |
| 1938 | 38 |
| 1939 | 37 |
| 1940 | 33 |
| 1941 | 18 |
| 1942 | 21 |
| 1943 | 16 |
| 1944 | 21 |
| 1945 | 31 |
| 1946 | 17 |
| 1947 | 33 |
| 1948 | 28 |
| 1949 | 20 |
| 1950 | 64 |
| 1951 | 45 |
| 1952 | 26 |
| 1953 | 9 |
All-Time Record Progression
5 new records| Date | Kind | Detail |
|---|---|---|
| 1945-08-24 | Record high minimum temperature | Record high minimum temperature 22.2 C (72.0 F) |
| 1947-01-30 | Record low maximum temperature | Record low maximum temperature -22.2 C (-8.0 F) |
| 1947-01-31 | Record low maximum temperature | Record low maximum temperature -23.3 C (-9.9 F) |
| 1950-01-13 | Record low minimum temperature | Record low minimum temperature -27.8 C (-18.0 F) |
| 1950-01-14 | Record low minimum temperature | Record low minimum temperature -30.0 C (-22.0 F) |
Wettest Day of Each Month
Dec: 116.6 mm (4.6 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 77.5 mm (3.1 in) | 26 January 1934 |
| Feb | 48.3 mm (1.9 in) | 20 February 1932 |
| Mar | 76.2 mm (3.0 in) | 7 March 1941 |
| Apr | 68.6 mm (2.7 in) | 16 April 1952 |
| May | 31.8 mm (1.3 in) | 30 May 1930 |
| Jun | 56.4 mm (2.2 in) | 18 June 1918 |
| Jul | 41.7 mm (1.6 in) | 11 July 1918 |
| Aug | 50.0 mm (2.0 in) | 8 August 1940 |
| Sep | 44.7 mm (1.8 in) | 23 September 1922 |
| Oct | 91.7 mm (3.6 in) | 27 October 1951 |
| Nov | 94.5 mm (3.7 in) | 2 November 1945 |
| Dec | 116.6 mm (4.6 in) | 1 December 1933 |
Period of Record Coverage
1912 to 1953| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1912 | 75 | 20% | No |
| 1913 | 364 | 100% | Yes |
| 1914 | 242 | 66% | No |
| 1915 | 365 | 100% | Yes |
| 1916 | 366 | 100% | Yes |
| 1917 | 364 | 100% | Yes |
| 1918 | 324 | 89% | No |
| 1919 | 358 | 98% | Yes |
| 1920 | 365 | 100% | Yes |
| 1921 | 343 | 94% | Yes |
| 1922 | 360 | 99% | Yes |
| 1923 | 365 | 100% | Yes |
| 1924 | 366 | 100% | Yes |
| 1925 | 365 | 100% | Yes |
| 1926 | 365 | 100% | Yes |
| 1927 | 364 | 100% | Yes |
| 1928 | 366 | 100% | Yes |
| 1929 | 365 | 100% | Yes |
| 1930 | 365 | 100% | Yes |
| 1931 | 365 | 100% | Yes |
| 1932 | 366 | 100% | Yes |
| 1933 | 365 | 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 | 364 | 100% | Yes |
| 1943 | 364 | 100% | Yes |
| 1944 | 366 | 100% | Yes |
| 1945 | 365 | 100% | Yes |
| 1946 | 365 | 100% | Yes |
| 1947 | 365 | 100% | Yes |
| 1948 | 365 | 100% | Yes |
| 1949 | 365 | 100% | Yes |
| 1950 | 363 | 99% | Yes |
| 1951 | 363 | 99% | Yes |
| 1952 | 329 | 90% | No |
| 1953 | 90 | 25% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 7 March 1953 | Terrace, CA | daily high min (Tie) | 1.7 C (35.1 F) | tie | 40 years | 4 of 100 (Routine) |
| 5 March 1953 | Terrace, CA | daily high min | 4.4 C (39.9 F) | 1.1 C (2.0 F) | 16 years | 11 of 100 (Routine) |
| 22 February 1953 | Terrace, CA | daily high max | 8.3 C (46.9 F) | 1.1 C (2.0 F) | 32 years | 15 of 100 (Routine) |
| 11 February 1953 | Terrace, CA | daily high max (Tie) | 7.2 C (45.0 F) | tie | 19 years | 2 of 100 (Routine) |
| 10 February 1953 | Terrace, CA | daily high max | 7.8 C (46.0 F) | 1.7 C (3.1 F) | 27 years | 15 of 100 (Routine) |
| 2 February 1953 | Terrace, CA | daily high max | 7.2 C (45.0 F) | 0.5 C (0.9 F) | 22 years | 10 of 100 (Routine) |
| 31 January 1953 | Terrace, CA | daily snowfall | 35.6 cm (14.0 in) | 28.0 cm (11.0 in) | 33 years | 51 of 100 (Notable) |
| 22 January 1953 | Terrace, CA | daily snowfall | 25.4 cm (10.0 in) | 7.6 cm (3.0 in) | 32 years | 23 of 100 (Routine) |
| 22 January 1953 | Terrace, CA | daily high max | 6.1 C (43.0 F) | 0.5 C (0.9 F) | 27 years | 12 of 100 (Routine) |
| 10 January 1953 | Terrace, CA | daily low min | -21.1 C (-6.0 F) | 2.2 C (4.0 F) | 37 years | 18 of 100 (Routine) |
| 9 January 1953 | Terrace, CA | daily low max | -14.4 C (6.1 F) | 1.6 C (2.9 F) | 40 years | 18 of 100 (Routine) |
| 9 January 1953 | Terrace, CA | daily low min (Tie) | -21.1 C (-6.0 F) | tie | 37 years | 3 of 100 (Routine) |
| 8 January 1953 | Terrace, CA | daily low max | -18.3 C (-0.9 F) | 5.0 C (9.0 F) | 16 years | 16 of 100 (Routine) |
| 8 January 1953 | Terrace, CA | daily low min | -20.0 C (-4.0 F) | 1.7 C (3.1 F) | 16 years | 10 of 100 (Routine) |
| 4 January 1953 | Terrace, CA | daily high max (Tie) | 7.8 C (46.0 F) | tie | 7 years | 1 of 100 (Routine) |
| 19 November 1952 | Terrace, CA | daily rain | 51.1 mm (2.0 in) | 0.8 mm (0.03 in) | 36 years | 14 of 100 (Routine) |
| 4 November 1952 | Terrace, CA | daily rain | 51.1 mm (2.0 in) | 26.0 mm (1.0 in) | 6 years | 27 of 100 (Routine) |
| 25 October 1952 | Terrace, CA | daily high min | 7.8 C (46.0 F) | 1.1 C (2.0 F) | 23 years | 13 of 100 (Routine) |
| 25 October 1952 | Terrace, CA | daily high max | 16.1 C (61.0 F) | 1.7 C (3.1 F) | 16 years | 12 of 100 (Routine) |
| 24 October 1952 | Terrace, CA | daily high max | 13.9 C (57.0 F) | 1.1 C (2.0 F) | 16 years | 10 of 100 (Routine) |
Climate Trend
37 complete years, 1913 to 1951| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1913 | 6.2 C | -0.45 C |
| 1915 | 8.6 C | +1.87 C |
| 1916 | 5.2 C | -1.47 C |
| 1917 | 5.8 C | -0.93 C |
| 1919 | 6.4 C | -0.31 C |
| 1920 | 6.1 C | -0.56 C |
| 1921 | 6.0 C | -0.71 C |
| 1922 | 5.8 C | -0.85 C |
| 1923 | 7.6 C | +0.92 C |
| 1924 | 6.8 C | +0.08 C |
| 1925 | 7.1 C | +0.42 C |
| 1926 | 8.3 C | +1.56 C |
| 1927 | 6.0 C | -0.74 C |
| 1928 | 7.6 C | +0.91 C |
| 1929 | 7.0 C | +0.29 C |
| 1930 | 6.9 C | +0.20 C |
| 1931 | 7.8 C | +1.11 C |
| 1932 | 6.5 C | -0.18 C |
| 1933 | 5.6 C | -1.11 C |
| 1934 | 8.1 C | +1.42 C |
| 1935 | 6.6 C | -0.08 C |
| 1936 | 6.8 C | +0.08 C |
| 1937 | 5.9 C | -0.84 C |
| 1938 | 6.7 C | +0.02 C |
| 1939 | 6.0 C | -0.68 C |
| 1940 | 7.4 C | +0.68 C |
| 1941 | 7.4 C | +0.66 C |
| 1942 | 6.7 C | +0.00 C |
| 1943 | 6.3 C | -0.36 C |
| 1944 | 7.1 C | +0.44 C |
| 1945 | 6.4 C | -0.31 C |
| 1946 | 7.0 C | +0.33 C |
| 1947 | 7.4 C | +0.69 C |
| 1948 | 6.4 C | -0.31 C |
| 1949 | 6.1 C | -0.55 C |
| 1950 | 5.6 C | -1.06 C |
| 1951 | 6.4 C | -0.34 C |
The fitted trend in annual mean temperature here over 1913 to 1951 is -0.01 C (-0.26 to 0.23) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.02 F (-0.46 to 0.42) per decade. The slope is a straight line fitted to 37 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | -0.01 C (-0.26 to 0.23) per decade | -0.02 F (-0.46 to 0.42) per decade | 1913 to 1951 | 37 | 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 | 1913 to 1951 | 37 | Not clearly different from zero |
| Mean daily minimum | 0.04 C (-0.22 to 0.30) per decade | 0.1 F (-0.4 to 0.5) per decade | 1913 to 1951 | 37 | 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
1912 to 1953| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 37.2 C (99.0 F) | 1941 | 32.8 C (91.0 F) | 42 |
| Coldest night (TNn) | -30.0 C (-22.0 F) | 1950 | -21.1 C (-6.0 F) | 42 |
| Wettest day (Rx1day) | 116.6 mm (4.6 in) | 1933 | 53.5 mm (2.1 in) | 42 |
| Wettest five days (Rx5day) | 240.3 mm (9.5 in) | 1935 | 114.5 mm (4.5 in) | 42 |
| Longest dry spell (CDD) | 41 days | 1952 | 18 days | 42 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1912 | 10.6 C (51.1 F) |
| 1913 | 29.4 C (84.9 F) |
| 1914 | 23.3 C (73.9 F) |
| 1915 | 32.8 C (91.0 F) |
| 1916 | 31.1 C (88.0 F) |
| 1917 | 27.2 C (81.0 F) |
| 1918 | 32.2 C (90.0 F) |
| 1919 | 29.4 C (84.9 F) |
| 1920 | 33.3 C (91.9 F) |
| 1921 | 30.6 C (87.1 F) |
| 1922 | 30.6 C (87.1 F) |
| 1923 | 34.4 C (93.9 F) |
| 1924 | 33.9 C (93.0 F) |
| 1925 | 34.4 C (93.9 F) |
| 1926 | 33.3 C (91.9 F) |
| 1927 | 36.7 C (98.1 F) |
| 1928 | 32.8 C (91.0 F) |
| 1929 | 30.6 C (87.1 F) |
| 1930 | 32.8 C (91.0 F) |
| 1931 | 35.0 C (95.0 F) |
| 1932 | 34.4 C (93.9 F) |
| 1933 | 31.7 C (89.1 F) |
| 1934 | 36.1 C (97.0 F) |
| 1935 | 31.7 C (89.1 F) |
| 1936 | 32.2 C (90.0 F) |
| 1937 | 35.0 C (95.0 F) |
| 1938 | 33.9 C (93.0 F) |
| 1939 | 32.8 C (91.0 F) |
| 1940 | 28.3 C (82.9 F) |
| 1941 | 37.2 C (99.0 F) |
| 1942 | 33.9 C (93.0 F) |
| 1943 | 26.7 C (80.1 F) |
| 1944 | 30.6 C (87.1 F) |
| 1945 | 32.8 C (91.0 F) |
| 1946 | 32.8 C (91.0 F) |
| 1947 | 33.3 C (91.9 F) |
| 1948 | 32.8 C (91.0 F) |
| 1949 | 32.2 C (90.0 F) |
| 1950 | 35.0 C (95.0 F) |
| 1951 | 37.2 C (99.0 F) |
| 1952 | 36.1 C (97.0 F) |
| 1953 | 12.8 C (55.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1912 | -6.7 C (19.9 F) |
| 1913 | -22.8 C (-9.0 F) |
| 1914 | -18.3 C (-0.9 F) |
| 1915 | -11.1 C (12.0 F) |
| 1916 | -25.0 C (-13.0 F) |
| 1917 | -27.2 C (-17.0 F) |
| 1918 | -18.9 C (-2.0 F) |
| 1919 | -22.8 C (-9.0 F) |
| 1920 | -21.1 C (-6.0 F) |
| 1921 | -20.0 C (-4.0 F) |
| 1922 | -25.6 C (-14.1 F) |
| 1923 | -21.7 C (-7.1 F) |
| 1924 | -20.6 C (-5.1 F) |
| 1925 | -16.1 C (3.0 F) |
| 1926 | -18.3 C (-0.9 F) |
| 1927 | -24.4 C (-11.9 F) |
| 1928 | -22.2 C (-8.0 F) |
| 1929 | -21.1 C (-6.0 F) |
| 1930 | -18.9 C (-2.0 F) |
| 1931 | -17.2 C (1.0 F) |
| 1932 | -19.4 C (-2.9 F) |
| 1933 | -23.9 C (-11.0 F) |
| 1934 | -22.2 C (-8.0 F) |
| 1935 | -24.4 C (-11.9 F) |
| 1936 | -22.2 C (-8.0 F) |
| 1937 | -22.2 C (-8.0 F) |
| 1938 | -17.8 C (0.0 F) |
| 1939 | -22.2 C (-8.0 F) |
| 1940 | -13.9 C (7.0 F) |
| 1941 | -17.2 C (1.0 F) |
| 1942 | -19.4 C (-2.9 F) |
| 1943 | -23.3 C (-9.9 F) |
| 1944 | -14.4 C (6.1 F) |
| 1945 | -12.8 C (9.0 F) |
| 1946 | -19.4 C (-2.9 F) |
| 1947 | -27.2 C (-17.0 F) |
| 1948 | -21.1 C (-6.0 F) |
| 1949 | -25.0 C (-13.0 F) |
| 1950 | -30.0 C (-22.0 F) |
| 1951 | -25.0 C (-13.0 F) |
| 1952 | -20.6 C (-5.1 F) |
| 1953 | -21.7 C (-7.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1912 | 47.5 mm (1.9 in) |
| 1913 | 55.4 mm (2.2 in) |
| 1914 | 53.1 mm (2.1 in) |
| 1915 | 34.3 mm (1.4 in) |
| 1916 | 50.3 mm (2.0 in) |
| 1917 | 54.1 mm (2.1 in) |
| 1918 | 56.4 mm (2.2 in) |
| 1919 | 47.5 mm (1.9 in) |
| 1920 | 40.4 mm (1.6 in) |
| 1921 | 51.6 mm (2.0 in) |
| 1922 | 44.7 mm (1.8 in) |
| 1923 | 72.4 mm (2.9 in) |
| 1924 | 52.8 mm (2.1 in) |
| 1925 | 53.1 mm (2.1 in) |
| 1926 | 70.4 mm (2.8 in) |
| 1927 | 88.9 mm (3.5 in) |
| 1928 | 80.3 mm (3.2 in) |
| 1929 | 80.3 mm (3.2 in) |
| 1930 | 56.4 mm (2.2 in) |
| 1931 | 53.8 mm (2.1 in) |
| 1932 | 72.1 mm (2.8 in) |
| 1933 | 116.6 mm (4.6 in) |
| 1934 | 77.5 mm (3.1 in) |
| 1935 | 72.1 mm (2.8 in) |
| 1936 | 49.5 mm (1.9 in) |
| 1937 | 45.7 mm (1.8 in) |
| 1938 | 36.3 mm (1.4 in) |
| 1939 | 54.6 mm (2.1 in) |
| 1940 | 60.7 mm (2.4 in) |
| 1941 | 76.2 mm (3.0 in) |
| 1942 | 52.3 mm (2.1 in) |
| 1943 | 48.3 mm (1.9 in) |
| 1944 | 39.6 mm (1.6 in) |
| 1945 | 94.5 mm (3.7 in) |
| 1946 | 38.1 mm (1.5 in) |
| 1947 | 62.5 mm (2.5 in) |
| 1948 | 44.5 mm (1.8 in) |
| 1949 | 32.3 mm (1.3 in) |
| 1950 | 39.4 mm (1.6 in) |
| 1951 | 91.7 mm (3.6 in) |
| 1952 | 68.6 mm (2.7 in) |
| 1953 | 35.6 mm (1.4 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1912 | 116.4 mm (4.6 in) |
| 1913 | 188.8 mm (7.4 in) |
| 1914 | 155.9 mm (6.1 in) |
| 1915 | 61.3 mm (2.4 in) |
| 1916 | 76.3 mm (3.0 in) |
| 1917 | 100.1 mm (3.9 in) |
| 1918 | 83.3 mm (3.3 in) |
| 1919 | 115.6 mm (4.6 in) |
| 1920 | 89.7 mm (3.5 in) |
| 1921 | 76.8 mm (3.0 in) |
| 1922 | 136.2 mm (5.4 in) |
| 1923 | 210.1 mm (8.3 in) |
| 1924 | 87.6 mm (3.4 in) |
| 1925 | 123.9 mm (4.9 in) |
| 1926 | 153.2 mm (6.0 in) |
| 1927 | 144.3 mm (5.7 in) |
| 1928 | 196.6 mm (7.7 in) |
| 1929 | 183.6 mm (7.2 in) |
| 1930 | 92.8 mm (3.7 in) |
| 1931 | 129.4 mm (5.1 in) |
| 1932 | 123.6 mm (4.9 in) |
| 1933 | 188.2 mm (7.4 in) |
| 1934 | 122.2 mm (4.8 in) |
| 1935 | 240.3 mm (9.5 in) |
| 1936 | 104.4 mm (4.1 in) |
| 1937 | 86.3 mm (3.4 in) |
| 1938 | 85.8 mm (3.4 in) |
| 1939 | 164.6 mm (6.5 in) |
| 1940 | 121.2 mm (4.8 in) |
| 1941 | 114.5 mm (4.5 in) |
| 1942 | 102.6 mm (4.0 in) |
| 1943 | 89.4 mm (3.5 in) |
| 1944 | 73.6 mm (2.9 in) |
| 1945 | 114.4 mm (4.5 in) |
| 1946 | 86.9 mm (3.4 in) |
| 1947 | 105.9 mm (4.2 in) |
| 1948 | 97.0 mm (3.8 in) |
| 1949 | 77.0 mm (3.0 in) |
| 1950 | 95.2 mm (3.7 in) |
| 1951 | 131.8 mm (5.2 in) |
| 1952 | 159.7 mm (6.3 in) |
| 1953 | 57.9 mm (2.3 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1912 | 10 days |
| 1913 | 15 days |
| 1914 | 24 days |
| 1915 | 14 days |
| 1916 | 26 days |
| 1917 | 18 days |
| 1918 | 29 days |
| 1919 | 14 days |
| 1920 | 28 days |
| 1921 | 14 days |
| 1922 | 20 days |
| 1923 | 19 days |
| 1924 | 25 days |
| 1925 | 22 days |
| 1926 | 16 days |
| 1927 | 24 days |
| 1928 | 29 days |
| 1929 | 24 days |
| 1930 | 34 days |
| 1931 | 10 days |
| 1932 | 14 days |
| 1933 | 12 days |
| 1934 | 18 days |
| 1935 | 19 days |
| 1936 | 16 days |
| 1937 | 17 days |
| 1938 | 24 days |
| 1939 | 11 days |
| 1940 | 12 days |
| 1941 | 14 days |
| 1942 | 27 days |
| 1943 | 18 days |
| 1944 | 19 days |
| 1945 | 20 days |
| 1946 | 29 days |
| 1947 | 15 days |
| 1948 | 15 days |
| 1949 | 16 days |
| 1950 | 16 days |
| 1951 | 19 days |
| 1952 | 41 days |
| 1953 | 14 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 Terrace falls on 22 May and the median first autumn frost on 23 September, which leaves a median of 137 days between them.
Fitted over all years, the growing season changes by +5.6 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1922 to 1951) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 22 May | n/a | 22 May | n/a | -0.7 days per decade |
| First autumn frost | 23 September | n/a | 23 September | n/a | +4.8 days per decade |
| Growing days | 137 days | n/a | 138 days | n/a | +5.6 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
39 years, 1913 to 1952A day with at least 55.8 mm (2.2 in) of rain is expected about once in 2 years. A day with at least 123.4 mm (4.9 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 55.8 mm (2.2 in) | |
| 5 years | 72.9 mm (2.9 in) | |
| 10 years | 84.6 mm (3.3 in) | |
| 25 years | 99.8 mm (3.9 in) | |
| 50 years | 111.5 mm (4.4 in) | Longer than the 39 years of record |
| 100 years | 123.4 mm (4.9 in) | Longer than the 39 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, 39 years of values from 1913 to 1952.
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: 116.6 mm (4.6 in) in 1933; 94.5 mm (3.7 in) in 1945; 91.7 mm (3.6 in) in 1951.
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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).