Truro Weather Records (CA008205988)
Record envelope, standing records and threshold days for Truro (CA008205988), Nova Scotia, Canada, with 44 years of record.
Key Facts for Truro
- Truro (CA008205988) is a weather station in Nova Scotia, Canada at 45.35 latitude and -63.30 longitude, 12 m (39 ft) above sea level.
- The station reports from 1872 to 1915, 44 years of record.
- 1,464 records set at Truro still stand.
- Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
- Truro set a daily record precipitation of 41.9 mm (1.6 in) on 29 August 1915.
About the Station
- Location: Nova Scotia, Canada, 45.35 latitude, -63.30 longitude.
- Elevation: 12 m (39 ft).
- Period of record: 1872 to 1915, 44 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 | 16.1 C (61.0 F) | -35.0 C (-31.0 F) | n/a | n/a |
| Feb | 12.8 C (55.0 F) | -33.9 C (-29.0 F) | n/a | n/a |
| Mar | 17.2 C (63.0 F) | -31.1 C (-24.0 F) | n/a | n/a |
| Apr | 23.9 C (75.0 F) | -15.6 C (3.9 F) | n/a | n/a |
| May | 30.6 C (87.1 F) | -7.2 C (19.0 F) | n/a | n/a |
| Jun | 30.6 C (87.1 F) | -4.4 C (24.1 F) | n/a | n/a |
| Jul | 33.9 C (93.0 F) | 0.0 C (32.0 F) | n/a | n/a |
| Aug | 32.8 C (91.0 F) | 0.0 C (32.0 F) | n/a | n/a |
| Sep | 31.7 C (89.1 F) | -7.2 C (19.0 F) | n/a | n/a |
| Oct | 25.6 C (78.1 F) | -8.9 C (16.0 F) | n/a | n/a |
| Nov | 20.0 C (68.0 F) | -20.6 C (-5.1 F) | n/a | n/a |
| Dec | 15.6 C (60.1 F) | -35.0 C (-31.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1873 | 45 |
| 1874 | 40 |
| 1875 | 47 |
| 1876 | 28 |
| 1877 | 27 |
| 1878 | 30 |
| 1879 | 47 |
| 1880 | 47 |
| 1881 | 34 |
| 1882 | 29 |
| 1883 | 35 |
| 1884 | 40 |
| 1885 | 40 |
| 1886 | 39 |
| 1887 | 36 |
| 1888 | 31 |
| 1889 | 49 |
| 1890 | 36 |
| 1891 | 36 |
| 1892 | 36 |
| 1893 | 25 |
| 1894 | 22 |
| 1895 | 32 |
| 1896 | 27 |
| 1897 | 37 |
| 1898 | 28 |
| 1899 | 24 |
| 1900 | 29 |
| 1901 | 30 |
| 1902 | 38 |
| 1903 | 31 |
| 1904 | 45 |
| 1905 | 8 |
| 1906 | 36 |
| 1907 | 28 |
| 1908 | 21 |
| 1909 | 28 |
| 1910 | 45 |
| 1911 | 31 |
| 1912 | 35 |
| 1913 | 43 |
| 1914 | 50 |
| 1915 | 19 |
All-Time Record Progression
2 new records| Date | Kind | Detail |
|---|---|---|
| 1904-07-27 | Record high maximum temperature | Record high maximum temperature 33.9 C (93.0 F) |
| 1914-02-12 | Record low maximum temperature | Record low maximum temperature -21.7 C (-7.1 F) |
Wettest Day of Each Month
Oct: 88.4 mm (3.5 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 51.1 mm (2.0 in) | 15 January 1881 |
| Feb | 61.0 mm (2.4 in) | 1 February 1889 |
| Mar | 80.8 mm (3.2 in) | 18 March 1879 |
| Apr | 43.2 mm (1.7 in) | 10 April 1872 |
| May | 72.6 mm (2.9 in) | 9 May 1886 |
| Jun | 75.7 mm (3.0 in) | 20 June 1889 |
| Jul | 49.5 mm (1.9 in) | 13 July 1884 |
| Aug | 85.6 mm (3.4 in) | 2 August 1908 |
| Sep | 66.8 mm (2.6 in) | 4 September 1904 |
| Oct | 88.4 mm (3.5 in) | 19 October 1896 |
| Nov | 88.1 mm (3.5 in) | 20 November 1892 |
| Dec | 58.9 mm (2.3 in) | 12 December 1887 |
Period of Record Coverage
1873 to 1915| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1873 | 356 | 98% | Yes |
| 1874 | 325 | 89% | No |
| 1875 | 364 | 100% | Yes |
| 1876 | 305 | 83% | No |
| 1877 | 334 | 92% | Yes |
| 1878 | 358 | 98% | Yes |
| 1879 | 364 | 100% | Yes |
| 1880 | 366 | 100% | Yes |
| 1881 | 362 | 99% | Yes |
| 1882 | 363 | 99% | Yes |
| 1883 | 326 | 89% | No |
| 1884 | 359 | 98% | Yes |
| 1885 | 354 | 97% | Yes |
| 1886 | 363 | 99% | Yes |
| 1887 | 357 | 98% | Yes |
| 1888 | 362 | 99% | Yes |
| 1889 | 363 | 99% | Yes |
| 1890 | 355 | 97% | Yes |
| 1891 | 365 | 100% | Yes |
| 1892 | 362 | 99% | Yes |
| 1893 | 365 | 100% | Yes |
| 1894 | 351 | 96% | Yes |
| 1895 | 365 | 100% | Yes |
| 1896 | 362 | 99% | Yes |
| 1897 | 363 | 99% | Yes |
| 1898 | 362 | 99% | Yes |
| 1899 | 357 | 98% | Yes |
| 1900 | 365 | 100% | Yes |
| 1901 | 365 | 100% | Yes |
| 1902 | 365 | 100% | Yes |
| 1903 | 365 | 100% | Yes |
| 1904 | 365 | 100% | Yes |
| 1905 | 121 | 33% | No |
| 1906 | 364 | 100% | Yes |
| 1907 | 364 | 100% | Yes |
| 1908 | 364 | 99% | Yes |
| 1909 | 364 | 100% | Yes |
| 1910 | 361 | 99% | Yes |
| 1911 | 294 | 81% | No |
| 1912 | 351 | 96% | Yes |
| 1913 | 365 | 100% | Yes |
| 1914 | 365 | 100% | Yes |
| 1915 | 237 | 65% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 29 August 1915 | Truro, CA | daily rain | 41.9 mm (1.6 in) | 7.6 mm (0.30 in) | 42 years | 22 of 100 (Routine) |
| 18 August 1915 | Truro, CA | daily low max | 15.0 C (59.0 F) | 2.2 C (4.0 F) | 28 years | 18 of 100 (Routine) |
| 3 August 1915 | Truro, CA | daily rain | 59.7 mm (2.4 in) | 25.7 mm (1.0 in) | 39 years | 38 of 100 (Notable) |
| 21 July 1915 | Truro, CA | daily low max | 17.8 C (64.0 F) | 1.6 C (2.9 F) | 12 years | 11 of 100 (Routine) |
| 22 June 1915 | Truro, CA | daily low max | 10.6 C (51.1 F) | 2.2 C (4.0 F) | 33 years | 19 of 100 (Routine) |
| 22 June 1915 | Truro, CA | daily rain | 19.3 mm (0.8 in) | 2.3 mm (0.09 in) | 33 years | 16 of 100 (Routine) |
| 9 June 1915 | Truro, CA | daily high min | 15.0 C (59.0 F) | 1.7 C (3.1 F) | 37 years | 19 of 100 (Routine) |
| 8 June 1915 | Truro, CA | daily high min | 15.0 C (59.0 F) | 1.1 C (2.0 F) | 37 years | 17 of 100 (Routine) |
| 7 June 1915 | Truro, CA | daily high min | 14.4 C (57.9 F) | 1.6 C (2.9 F) | 37 years | 18 of 100 (Routine) |
| 5 June 1915 | Truro, CA | daily high max | 26.1 C (79.0 F) | 1.7 C (3.1 F) | 36 years | 19 of 100 (Routine) |
| 3 June 1915 | Truro, CA | daily low min | -1.7 C (28.9 F) | 0.6 C (1.1 F) | 33 years | 15 of 100 (Routine) |
| 28 May 1915 | Truro, CA | daily low max (Tie) | 10.6 C (51.1 F) | tie | 21 years | 2 of 100 (Routine) |
| 27 May 1915 | Truro, CA | daily rain | 32.3 mm (1.3 in) | 2.3 mm (0.09 in) | 6 years | 8 of 100 (Routine) |
| 5 May 1915 | Truro, CA | daily low max | 5.0 C (41.0 F) | 0.6 C (1.1 F) | 4 years | 6 of 100 (Routine) |
| 3 May 1915 | Truro, CA | daily rain | 28.2 mm (1.1 in) | 8.4 mm (0.33 in) | 8 years | 15 of 100 (Routine) |
| 26 April 1915 | Truro, CA | daily low max (Tie) | 2.2 C (36.0 F) | tie | 5 years | 1 of 100 (Routine) |
| 17 April 1915 | Truro, CA | daily high min | 5.0 C (41.0 F) | 2.2 C (4.0 F) | 16 years | 14 of 100 (Routine) |
| 16 April 1915 | Truro, CA | daily high max (Tie) | 18.3 C (64.9 F) | tie | 2 years | 1 of 100 (Routine) |
| 12 April 1915 | Truro, CA | daily high min | 8.9 C (48.0 F) | 6.1 C (11.0 F) | 1 year | 18 of 100 (Routine) |
| 11 April 1915 | Truro, CA | daily high min | 6.1 C (43.0 F) | 1.7 C (3.1 F) | 10 years | 10 of 100 (Routine) |
Climate Trend
35 complete years, 1873 to 1914| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1873 | 4.7 C | -0.90 C |
| 1875 | 3.6 C | -2.01 C |
| 1878 | 6.6 C | +0.97 C |
| 1879 | 4.6 C | -0.99 C |
| 1880 | 5.3 C | -0.32 C |
| 1881 | 5.3 C | -0.32 C |
| 1882 | 4.9 C | -0.77 C |
| 1884 | 5.1 C | -0.53 C |
| 1885 | 5.5 C | -0.11 C |
| 1886 | 6.2 C | +0.55 C |
| 1887 | 5.3 C | -0.33 C |
| 1888 | 5.0 C | -0.63 C |
| 1889 | 7.1 C | +1.51 C |
| 1890 | 5.5 C | -0.09 C |
| 1891 | 6.5 C | +0.86 C |
| 1892 | 6.1 C | +0.46 C |
| 1893 | 5.4 C | -0.22 C |
| 1894 | 5.6 C | -0.03 C |
| 1895 | 6.2 C | +0.57 C |
| 1896 | 5.5 C | -0.13 C |
| 1897 | 5.6 C | -0.02 C |
| 1898 | 6.3 C | +0.72 C |
| 1899 | 5.4 C | -0.18 C |
| 1900 | 6.1 C | +0.44 C |
| 1901 | 6.7 C | +1.12 C |
| 1902 | 6.3 C | +0.70 C |
| 1903 | 5.5 C | -0.15 C |
| 1904 | 4.4 C | -1.23 C |
| 1906 | 6.0 C | +0.36 C |
| 1907 | 5.0 C | -0.64 C |
| 1908 | 5.7 C | +0.09 C |
| 1909 | 6.3 C | +0.71 C |
| 1910 | 6.5 C | +0.88 C |
| 1913 | 6.4 C | +0.82 C |
| 1914 | 4.6 C | -1.06 C |
The fitted trend in annual mean temperature here over 1873 to 1914 is 0.22 C (-0.01 to 0.44) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.39 F (-0.02 to 0.80) per decade. The slope is a straight line fitted to 35 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.22 C (-0.01 to 0.44) per decade | 0.39 F (-0.02 to 0.80) per decade | 1873 to 1914 | 35 | Not clearly different from zero |
| Mean daily maximum | 0.3 C (0.1 to 0.5) per decade | 0.6 F (0.1 to 1.0) per decade | 1873 to 1914 | 35 | Rise |
| Mean daily minimum | 0.1 C (-0.1 to 0.4) per decade | 0.2 F (-0.2 to 0.7) per decade | 1873 to 1914 | 35 | 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
1872 to 1915| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 33.9 C (93.0 F) | 1904 | 31.1 C (88.0 F) | 43 |
| Coldest night (TNn) | -35.0 C (-31.0 F) | 1875 | -28.9 C (-20.0 F) | 43 |
| Wettest day (Rx1day) | 88.4 mm (3.5 in) | 1896 | 57.1 mm (2.2 in) | 44 |
| Wettest five days (Rx5day) | 121.9 mm (4.8 in) | 1892 | 83.8 mm (3.3 in) | 44 |
| Longest dry spell (CDD) | 25 days | 1889 | 13 days | 44 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1872 | n/a |
| 1873 | 31.7 C (89.1 F) |
| 1874 | 26.7 C (80.1 F) |
| 1875 | 27.2 C (81.0 F) |
| 1876 | 31.1 C (88.0 F) |
| 1877 | 29.4 C (84.9 F) |
| 1878 | 30.6 C (87.1 F) |
| 1879 | 28.9 C (84.0 F) |
| 1880 | 32.8 C (91.0 F) |
| 1881 | 30.6 C (87.1 F) |
| 1882 | 30.6 C (87.1 F) |
| 1883 | 28.9 C (84.0 F) |
| 1884 | 32.2 C (90.0 F) |
| 1885 | 30.0 C (86.0 F) |
| 1886 | 29.4 C (84.9 F) |
| 1887 | 32.2 C (90.0 F) |
| 1888 | 27.8 C (82.0 F) |
| 1889 | 30.6 C (87.1 F) |
| 1890 | 29.4 C (84.9 F) |
| 1891 | 32.2 C (90.0 F) |
| 1892 | 31.1 C (88.0 F) |
| 1893 | 32.2 C (90.0 F) |
| 1894 | 31.1 C (88.0 F) |
| 1895 | 31.1 C (88.0 F) |
| 1896 | 30.6 C (87.1 F) |
| 1897 | 31.1 C (88.0 F) |
| 1898 | 32.8 C (91.0 F) |
| 1899 | 30.0 C (86.0 F) |
| 1900 | 30.6 C (87.1 F) |
| 1901 | 31.1 C (88.0 F) |
| 1902 | 32.2 C (90.0 F) |
| 1903 | 27.8 C (82.0 F) |
| 1904 | 33.9 C (93.0 F) |
| 1905 | 25.6 C (78.1 F) |
| 1906 | 32.8 C (91.0 F) |
| 1907 | 31.1 C (88.0 F) |
| 1908 | 33.3 C (91.9 F) |
| 1909 | 32.2 C (90.0 F) |
| 1910 | 31.7 C (89.1 F) |
| 1911 | 32.8 C (91.0 F) |
| 1912 | 31.7 C (89.1 F) |
| 1913 | 30.6 C (87.1 F) |
| 1914 | 31.7 C (89.1 F) |
| 1915 | 28.3 C (82.9 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1872 | n/a |
| 1873 | -31.7 C (-25.1 F) |
| 1874 | -29.4 C (-20.9 F) |
| 1875 | -35.0 C (-31.0 F) |
| 1876 | -26.1 C (-15.0 F) |
| 1877 | -30.0 C (-22.0 F) |
| 1878 | -27.8 C (-18.0 F) |
| 1879 | -35.0 C (-31.0 F) |
| 1880 | -27.2 C (-17.0 F) |
| 1881 | -26.7 C (-16.1 F) |
| 1882 | -27.2 C (-17.0 F) |
| 1883 | -32.8 C (-27.0 F) |
| 1884 | -28.9 C (-20.0 F) |
| 1885 | -31.1 C (-24.0 F) |
| 1886 | -25.6 C (-14.1 F) |
| 1887 | -32.8 C (-27.0 F) |
| 1888 | -27.8 C (-18.0 F) |
| 1889 | -30.0 C (-22.0 F) |
| 1890 | -31.1 C (-24.0 F) |
| 1891 | -25.6 C (-14.1 F) |
| 1892 | -27.8 C (-18.0 F) |
| 1893 | -29.4 C (-20.9 F) |
| 1894 | -28.9 C (-20.0 F) |
| 1895 | -26.7 C (-16.1 F) |
| 1896 | -32.2 C (-26.0 F) |
| 1897 | -28.3 C (-18.9 F) |
| 1898 | -35.0 C (-31.0 F) |
| 1899 | -26.1 C (-15.0 F) |
| 1900 | -28.3 C (-18.9 F) |
| 1901 | -25.6 C (-14.1 F) |
| 1902 | -29.4 C (-20.9 F) |
| 1903 | -28.9 C (-20.0 F) |
| 1904 | -32.2 C (-26.0 F) |
| 1905 | -17.2 C (1.0 F) |
| 1906 | -26.1 C (-15.0 F) |
| 1907 | -30.0 C (-22.0 F) |
| 1908 | -27.2 C (-17.0 F) |
| 1909 | -30.6 C (-23.1 F) |
| 1910 | -28.3 C (-18.9 F) |
| 1911 | -27.8 C (-18.0 F) |
| 1912 | -33.3 C (-27.9 F) |
| 1913 | -33.3 C (-27.9 F) |
| 1914 | -34.4 C (-29.9 F) |
| 1915 | -25.6 C (-14.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1872 | 53.3 mm (2.1 in) |
| 1873 | 61.0 mm (2.4 in) |
| 1874 | 58.4 mm (2.3 in) |
| 1875 | 41.1 mm (1.6 in) |
| 1876 | 52.3 mm (2.1 in) |
| 1877 | 61.5 mm (2.4 in) |
| 1878 | 74.4 mm (2.9 in) |
| 1879 | 80.8 mm (3.2 in) |
| 1880 | 30.2 mm (1.2 in) |
| 1881 | 51.1 mm (2.0 in) |
| 1882 | 57.9 mm (2.3 in) |
| 1883 | 65.0 mm (2.6 in) |
| 1884 | 49.5 mm (1.9 in) |
| 1885 | 56.4 mm (2.2 in) |
| 1886 | 72.6 mm (2.9 in) |
| 1887 | 58.9 mm (2.3 in) |
| 1888 | 50.3 mm (2.0 in) |
| 1889 | 75.7 mm (3.0 in) |
| 1890 | 39.1 mm (1.5 in) |
| 1891 | 49.3 mm (1.9 in) |
| 1892 | 88.1 mm (3.5 in) |
| 1893 | 36.3 mm (1.4 in) |
| 1894 | 40.6 mm (1.6 in) |
| 1895 | 61.2 mm (2.4 in) |
| 1896 | 88.4 mm (3.5 in) |
| 1897 | 54.4 mm (2.1 in) |
| 1898 | 82.8 mm (3.3 in) |
| 1899 | 85.1 mm (3.4 in) |
| 1900 | 48.0 mm (1.9 in) |
| 1901 | 59.2 mm (2.3 in) |
| 1902 | 29.0 mm (1.1 in) |
| 1903 | 48.5 mm (1.9 in) |
| 1904 | 66.8 mm (2.6 in) |
| 1905 | 75.9 mm (3.0 in) |
| 1906 | 47.8 mm (1.9 in) |
| 1907 | 46.0 mm (1.8 in) |
| 1908 | 85.6 mm (3.4 in) |
| 1909 | 57.7 mm (2.3 in) |
| 1910 | 58.2 mm (2.3 in) |
| 1911 | 35.1 mm (1.4 in) |
| 1912 | 45.5 mm (1.8 in) |
| 1913 | 50.8 mm (2.0 in) |
| 1914 | 45.2 mm (1.8 in) |
| 1915 | 59.7 mm (2.4 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1872 | 81.8 mm (3.2 in) |
| 1873 | 94.0 mm (3.7 in) |
| 1874 | 74.9 mm (2.9 in) |
| 1875 | 71.1 mm (2.8 in) |
| 1876 | 77.5 mm (3.1 in) |
| 1877 | 83.1 mm (3.3 in) |
| 1878 | 101.6 mm (4.0 in) |
| 1879 | 109.0 mm (4.3 in) |
| 1880 | 53.6 mm (2.1 in) |
| 1881 | 68.3 mm (2.7 in) |
| 1882 | 86.6 mm (3.4 in) |
| 1883 | 79.7 mm (3.1 in) |
| 1884 | 116.6 mm (4.6 in) |
| 1885 | 73.8 mm (2.9 in) |
| 1886 | 83.7 mm (3.3 in) |
| 1887 | 90.7 mm (3.6 in) |
| 1888 | 83.9 mm (3.3 in) |
| 1889 | 95.3 mm (3.8 in) |
| 1890 | 78.2 mm (3.1 in) |
| 1891 | 91.0 mm (3.6 in) |
| 1892 | 121.9 mm (4.8 in) |
| 1893 | 63.3 mm (2.5 in) |
| 1894 | 73.1 mm (2.9 in) |
| 1895 | 99.8 mm (3.9 in) |
| 1896 | 119.2 mm (4.7 in) |
| 1897 | 71.7 mm (2.8 in) |
| 1898 | 98.3 mm (3.9 in) |
| 1899 | 111.8 mm (4.4 in) |
| 1900 | 117.6 mm (4.6 in) |
| 1901 | 119.4 mm (4.7 in) |
| 1902 | 63.8 mm (2.5 in) |
| 1903 | 69.1 mm (2.7 in) |
| 1904 | 93.4 mm (3.7 in) |
| 1905 | 81.8 mm (3.2 in) |
| 1906 | 101.1 mm (4.0 in) |
| 1907 | 68.8 mm (2.7 in) |
| 1908 | 102.6 mm (4.0 in) |
| 1909 | 88.7 mm (3.5 in) |
| 1910 | 116.6 mm (4.6 in) |
| 1911 | 55.9 mm (2.2 in) |
| 1912 | 77.1 mm (3.0 in) |
| 1913 | 115.1 mm (4.5 in) |
| 1914 | 52.6 mm (2.1 in) |
| 1915 | 67.1 mm (2.6 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1872 | 12 days |
| 1873 | 13 days |
| 1874 | 12 days |
| 1875 | 17 days |
| 1876 | 14 days |
| 1877 | 15 days |
| 1878 | 14 days |
| 1879 | 11 days |
| 1880 | 14 days |
| 1881 | 11 days |
| 1882 | 13 days |
| 1883 | 20 days |
| 1884 | 12 days |
| 1885 | 17 days |
| 1886 | 19 days |
| 1887 | 14 days |
| 1888 | 9 days |
| 1889 | 25 days |
| 1890 | 15 days |
| 1891 | 15 days |
| 1892 | 13 days |
| 1893 | 13 days |
| 1894 | 15 days |
| 1895 | 12 days |
| 1896 | 12 days |
| 1897 | 15 days |
| 1898 | 13 days |
| 1899 | 12 days |
| 1900 | 10 days |
| 1901 | 10 days |
| 1902 | 12 days |
| 1903 | 12 days |
| 1904 | 9 days |
| 1905 | 14 days |
| 1906 | 14 days |
| 1907 | 13 days |
| 1908 | 14 days |
| 1909 | 19 days |
| 1910 | 15 days |
| 1911 | 19 days |
| 1912 | 10 days |
| 1913 | 9 days |
| 1914 | 17 days |
| 1915 | 12 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
35 years with a frostAcross 35 years with a frost, the median last spring frost at Truro falls on 6 June and the median first autumn frost on 16 September, which leaves a median of 106 days between them.
Fitted over all years, the growing season changes by -1.7 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1881 to 1914) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 6 June | n/a | 9 June | n/a | +2.4 days per decade |
| First autumn frost | 16 September | n/a | 17 September | n/a | +0.7 days per decade |
| Growing days | 106 days | n/a | 107 days | n/a | -1.7 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
40 years, 1872 to 1914A day with at least 56.0 mm (2.2 in) of rain is expected about once in 2 years. A day with at least 102.5 mm (4.0 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 56.0 mm (2.2 in) | |
| 5 years | 70.4 mm (2.8 in) | |
| 10 years | 79.1 mm (3.1 in) | |
| 25 years | 89.2 mm (3.5 in) | |
| 50 years | 96.1 mm (3.8 in) | Longer than the 40 years of record |
| 100 years | 102.5 mm (4.0 in) | Longer than the 40 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, 40 years of values from 1872 to 1914.
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: 88.4 mm (3.5 in) in 1896; 88.1 mm (3.5 in) in 1892; 85.6 mm (3.4 in) in 1908.
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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 (2025-12-31).