Chatham 2 Threshold Days by Year (CA006131388)
16 fixed thresholds counted per year at Chatham 2 (CA006131388): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Chatham 2 Thresholds
- Chatham 2: days with 10 mm (0.39 in) or more of precipitation in 57 years, most in 1897 with 36.
- Chatham 2: days with 10 cm (3.9 in) or more of snowfall in 56 years, most in 1893 with 9.
- Chatham 2: days with 25 mm (0.98 in) or more of precipitation in 54 years, most in 1890 with 12.
- Chatham 2: days with a maximum temperature at or above 30 C (86 F) in 43 years, most in 1921 with 74.
- 16 fixed thresholds have at least one qualifying day at Chatham 2.
Days at or above 30 C (86 F)
43 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1890 | 18 | 27.3 |
| 1893 | 25 | 27.3 |
| 1894 | 34 | 27.3 |
| 1895 | 37 | 27.3 |
| 1896 | 24 | 27.3 |
| 1897 | 18 | 27.3 |
| 1898 | 31 | 27.3 |
| 1899 | 31 | 27.3 |
| 1900 | 27 | 28.3 |
| 1901 | 35 | 28.3 |
| 1902 | 19 | 28.3 |
| 1903 | 15 | 28.3 |
| 1904 | 14 | 28.3 |
| 1905 | 18 | 28.3 |
| 1906 | 43 | 28.3 |
| 1907 | 28 | 28.3 |
| 1908 | 43 | 28.3 |
| 1909 | 41 | 28.3 |
| 1910 | 39 | 43.8 |
| 1911 | 50 | 43.8 |
| 1912 | 29 | 43.8 |
| 1913 | 52 | 43.8 |
| 1914 | 48 | 43.8 |
| 1915 | 27 | 43.8 |
| 1916 | 52 | 43.8 |
| 1917 | 23 | 43.8 |
| 1918 | 52 | 43.8 |
| 1919 | 66 | 43.8 |
| 1920 | 37 | 41.5 |
| 1921 | 74 | 41.5 |
| 1922 | 63 | 41.5 |
| 1923 | 58 | 41.5 |
| 1924 | 20 | 41.5 |
| 1925 | 49 | 41.5 |
| 1926 | 24 | 41.5 |
| 1927 | 26 | 41.5 |
| 1928 | 28 | 41.5 |
| 1929 | 36 | 41.5 |
| 1930 | 42 | 47.6 |
| 1931 | 48 | 47.6 |
| 1932 | 37 | 47.6 |
| 1933 | 57 | 47.6 |
| 1934 | 54 | 47.6 |
| Year | First date | Last date |
|---|---|---|
| 1890 | 1890-06-04 | 1890-09-07 |
| 1893 | 1893-06-19 | 1893-08-26 |
| 1894 | 1894-06-10 | 1894-09-04 |
| 1895 | 1895-05-04 | 1895-09-22 |
| 1896 | 1896-05-08 | 1896-09-11 |
| 1897 | 1897-06-15 | 1897-09-16 |
| 1898 | 1898-06-07 | 1898-09-04 |
| 1899 | 1899-06-04 | 1899-09-17 |
| 1900 | 1900-05-14 | 1900-09-11 |
| 1901 | 1901-06-25 | 1901-09-07 |
| 1902 | 1902-05-22 | 1902-08-31 |
| 1903 | 1903-05-18 | 1903-09-15 |
| 1904 | 1904-05-25 | 1904-09-02 |
| 1905 | 1905-06-17 | 1905-08-30 |
| 1906 | 1906-05-17 | 1906-09-19 |
| 1907 | 1907-06-17 | 1907-09-20 |
| 1908 | 1908-05-24 | 1908-09-26 |
| 1909 | 1909-05-29 | 1909-09-14 |
| 1910 | 1910-06-15 | 1910-09-05 |
| 1911 | 1911-05-15 | 1911-09-17 |
| 1912 | 1912-06-25 | 1912-09-10 |
| 1913 | 1913-06-06 | 1913-10-06 |
| 1914 | 1914-05-20 | 1914-09-22 |
| 1915 | 1915-04-24 | 1915-09-16 |
| 1916 | 1916-06-13 | 1916-10-08 |
| 1917 | 1917-06-13 | 1917-08-20 |
| 1918 | 1918-05-05 | 1918-08-27 |
| 1919 | 1919-05-27 | 1919-10-03 |
| 1920 | 1920-05-26 | 1920-09-26 |
| 1921 | 1921-04-26 | 1921-09-13 |
| 1922 | 1922-05-11 | 1922-10-05 |
| 1923 | 1923-05-25 | 1923-09-28 |
| 1924 | 1924-06-14 | 1924-09-01 |
| 1925 | 1925-04-23 | 1925-09-18 |
| 1926 | 1926-06-29 | 1926-09-19 |
| 1927 | 1927-05-22 | 1927-09-17 |
| 1928 | 1928-07-02 | 1928-09-11 |
| 1929 | 1929-05-27 | 1929-09-24 |
| 1930 | 1930-05-05 | 1930-09-13 |
| 1931 | 1931-05-28 | 1931-09-22 |
| 1932 | 1932-05-25 | 1932-09-19 |
| 1933 | 1933-05-24 | 1933-09-24 |
| 1934 | 1934-05-04 | 1934-09-25 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 43 | 74 | 1921 | 54 |
| 35 C (95 F): Days | 35 | 16 | 1916 | 12 |
| 40 C (104 F): Days | 1 | 1 | 1918 | 1 |
| 90 F (32.2 C): Days | 43 | 46 | 1921 | 38 |
| 100 F (37.8 C): Days | 11 | 5 | 1918 | 2 |
| 0 C (32 F): Ice days (max | 43 | 81 | 1904 | 56 |
| 0 C (32 F): Frost days (min | 43 | 161 | 1907 | 136 |
| -10 C (14 F): Days with min | 43 | 56 | 1912 | 40 |
| -20 C (-4 F): Days with min | 32 | 15 | 1912 | 6 |
| 20 C (68 F): Tropical nights (min | 43 | 29 | 1931 | 22 |
| 25 C (77 F): Days with min | 7 | 2 | 1917 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 57 | 36 | 1897 | 17 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 54 | 12 | 1890 | 1 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 15 | 3 | 1887 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 56 | 9 | 1893 | 4 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 11 | 2 | 1886 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1890.
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). Threshold counts are computed by this site.
Data as of . Last revised (2026-10-17).