Clontarf Threshold Days by Year (CA006101658)
19 fixed thresholds counted per year at Clontarf (CA006101658): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Clontarf Thresholds
- Clontarf: days with 10 cm (3.9 in) or more of snowfall in 63 years, most in 1904 with 12.
- Clontarf: days with 10 mm (0.39 in) or more of precipitation in 62 years, most in 1893 with 33.
- Clontarf: days with 25 mm (0.98 in) or more of precipitation in 59 years, most in 1901 with 13.
- Clontarf: days with a maximum temperature at or above 30 C (86 F) in 58 years, most in 1895 with 34.
- 19 fixed thresholds have at least one qualifying day at Clontarf.
Days at or above 30 C (86 F)
58 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1889 | 12 | 12 |
| 1890 | 11 | 20.9 |
| 1891 | 12 | 20.9 |
| 1892 | 19 | 20.9 |
| 1893 | 16 | 20.9 |
| 1894 | 17 | 20.9 |
| 1895 | 34 | 20.9 |
| 1896 | 26 | 20.9 |
| 1897 | 25 | 20.9 |
| 1898 | 24 | 20.9 |
| 1899 | 25 | 20.9 |
| 1900 | 24 | 16 |
| 1901 | 22 | 16 |
| 1902 | 2 | 16 |
| 1903 | 11 | 16 |
| 1904 | 5 | 16 |
| 1905 | 6 | 16 |
| 1906 | 34 | 16 |
| 1907 | 24 | 16 |
| 1916 | 27 | 18.5 |
| 1917 | 8 | 18.5 |
| 1918 | 14 | 18.5 |
| 1919 | 25 | 18.5 |
| 1920 | 8 | 11.1 |
| 1921 | 29 | 11.1 |
| 1922 | 8 | 11.1 |
| 1923 | 15 | 11.1 |
| 1924 | 3 | 11.1 |
| 1925 | 12 | 11.1 |
| 1926 | 1 | 11.1 |
| 1927 | 4 | 11.1 |
| 1928 | 10 | 11.1 |
| 1929 | 21 | 11.1 |
| 1930 | 15 | 18.4 |
| 1931 | 26 | 18.4 |
| 1932 | 9 | 18.4 |
| 1933 | 15 | 18.4 |
| 1934 | 18 | 18.4 |
| 1935 | 17 | 18.4 |
| 1936 | 18 | 18.4 |
| 1937 | 26 | 18.4 |
| 1938 | 19 | 18.4 |
| 1939 | 21 | 18.4 |
| 1940 | 17 | 20.9 |
| 1941 | 25 | 20.9 |
| 1942 | 12 | 20.9 |
| 1943 | 11 | 20.9 |
| 1944 | 32 | 20.9 |
| 1945 | 19 | 20.9 |
| 1946 | 27 | 20.9 |
| 1947 | 22 | 20.9 |
| 1948 | 13 | 20.9 |
| 1949 | 31 | 20.9 |
| 1950 | 17 | 15.8 |
| 1951 | 5 | 15.8 |
| 1952 | 21 | 15.8 |
| 1953 | 25 | 15.8 |
| 1956 | 11 | 15.8 |
| Year | First date | Last date |
|---|---|---|
| 1889 | 1889-05-07 | 1889-09-04 |
| 1890 | 1890-06-23 | 1890-08-04 |
| 1891 | 1891-06-10 | 1891-09-25 |
| 1892 | 1892-06-12 | 1892-08-18 |
| 1893 | 1893-06-05 | 1893-08-09 |
| 1894 | 1894-06-10 | 1894-09-04 |
| 1895 | 1895-05-05 | 1895-09-22 |
| 1896 | 1896-04-16 | 1896-09-11 |
| 1897 | 1897-06-24 | 1897-10-15 |
| 1898 | 1898-06-07 | 1898-09-30 |
| 1899 | 1899-04-29 | 1899-09-17 |
| 1900 | 1900-05-14 | 1900-10-03 |
| 1901 | 1901-06-24 | 1901-09-07 |
| 1902 | 1902-07-08 | 1902-07-14 |
| 1903 | 1903-05-18 | 1903-09-13 |
| 1904 | 1904-06-20 | 1904-07-19 |
| 1905 | 1905-06-15 | 1905-07-18 |
| 1906 | 1906-05-16 | 1906-09-21 |
| 1907 | 1907-06-13 | 1907-08-12 |
| 1916 | 1916-07-06 | 1916-09-14 |
| 1917 | 1917-07-22 | 1917-08-01 |
| 1918 | 1918-05-18 | 1918-08-23 |
| 1919 | 1919-05-28 | 1919-09-07 |
| 1920 | 1920-05-31 | 1920-09-26 |
| 1921 | 1921-05-20 | 1921-09-10 |
| 1922 | 1922-06-07 | 1922-09-05 |
| 1923 | 1923-05-25 | 1923-08-12 |
| 1924 | 1924-08-05 | 1924-08-31 |
| 1925 | 1925-06-02 | 1925-08-30 |
| 1926 | 1926-07-20 | 1926-07-20 |
| 1927 | 1927-06-29 | 1927-07-02 |
| 1928 | 1928-07-02 | 1928-08-28 |
| 1929 | 1929-05-28 | 1929-09-05 |
| 1930 | 1930-05-06 | 1930-10-12 |
| 1931 | 1931-05-19 | 1931-09-14 |
| 1932 | 1932-05-16 | 1932-09-01 |
| 1933 | 1933-06-08 | 1933-08-26 |
| 1934 | 1934-05-04 | 1934-08-19 |
| 1935 | 1935-07-04 | 1935-09-25 |
| 1936 | 1936-05-07 | 1936-09-23 |
| 1937 | 1937-05-30 | 1937-09-03 |
| 1938 | 1938-06-20 | 1938-10-11 |
| 1939 | 1939-05-07 | 1939-09-16 |
| 1940 | 1940-06-03 | 1940-08-18 |
| 1941 | 1941-05-20 | 1941-09-22 |
| 1942 | 1942-04-25 | 1942-09-01 |
| 1943 | 1943-06-04 | 1943-08-23 |
| 1944 | 1944-05-26 | 1944-08-16 |
| 1945 | 1945-06-23 | 1945-09-10 |
| 1946 | 1946-06-17 | 1946-10-06 |
| 1947 | 1947-06-22 | 1947-10-17 |
| 1948 | 1948-06-03 | 1948-09-29 |
| 1949 | 1949-06-03 | 1949-08-26 |
| 1950 | 1950-06-08 | 1950-10-02 |
| 1951 | 1951-07-14 | 1951-08-11 |
| 1952 | 1952-06-28 | 1952-09-13 |
| 1953 | 1953-05-09 | 1953-09-03 |
| 1956 | 1956-06-06 | 1956-08-27 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 58 | 34 | 1895 | 11 |
| 35 C (95 F): Days | 27 | 8 | 1944 | 1 |
| 90 F (32.2 C): Days | 54 | 21 | 1944 | 1 |
| 100 F (37.8 C): Days | 8 | 3 | 1931 | 1 |
| 0 C (32 F): Ice days (max | 58 | 108 | 1901 | 93 |
| 0 C (32 F): Frost days (min | 56 | 216 | 1926 | 138 |
| -10 C (14 F): Days with min | 56 | 115 | 1893 | 43 |
| -20 C (-4 F): Days with min | 56 | 55 | 1934 | 17 |
| -30 C (-22 F): Days with min | 54 | 17 | 1917 | 4 |
| -40 C (-40 F): Days with min | 2 | 1 | 1917 | 1 |
| 20 C (68 F): Tropical nights (min | 45 | 10 | 1900 | 3 |
| 25 C (77 F): Days with min | 5 | 3 | 1894 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 62 | 33 | 1893 | 11 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 59 | 13 | 1901 | 1 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 17 | 2 | 1885 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 1 | 1 | 1907 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 63 | 12 | 1904 | 3 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 37 | 4 | 1896 | 1 |
| 50 cm (19.7 in): Days with 50 cm or more snowfall | 5 | 1 | 1885 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1889.
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).