Irwin 2 SE Threshold Days by Year
14 fixed thresholds counted per year at Irwin 2 SE (USC00104588): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Irwin 2 SE Thresholds
- Irwin 2 SE: nights with a minimum temperature at or below 0 C (32 F) in 46 years, most in 1919 with 257.
- Irwin 2 SE: nights with a minimum temperature at or below -10 C (14 F) in 46 years, most in 1923 with 115.
- Irwin 2 SE: nights with a minimum temperature at or below -20 C (-4 F) in 46 years, most in 1932 with 41.
- Irwin 2 SE: days with a maximum temperature at or below 0 C (32 F) in 45 years, most in 1926 with 84.
- 14 fixed thresholds have at least one qualifying day at Irwin 2 SE.
Days at or above 30 C (86 F)
44 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1910 | 53 | 30 |
| 1914 | 11 | 30 |
| 1915 | 15 | 30 |
| 1916 | 10 | 30 |
| 1918 | 25 | 30 |
| 1919 | 66 | 30 |
| 1920 | 33 | 26.3 |
| 1921 | 36 | 26.3 |
| 1922 | 26 | 26.3 |
| 1923 | 4 | 26.3 |
| 1924 | 14 | 26.3 |
| 1926 | 23 | 26.3 |
| 1927 | 16 | 26.3 |
| 1928 | 36 | 26.3 |
| 1929 | 49 | 26.3 |
| 1930 | 25 | 34.3 |
| 1931 | 49 | 34.3 |
| 1932 | 35 | 34.3 |
| 1933 | 52 | 34.3 |
| 1934 | 48 | 34.3 |
| 1936 | 26 | 34.3 |
| 1937 | 32 | 34.3 |
| 1938 | 14 | 34.3 |
| 1939 | 28 | 34.3 |
| 1940 | 44 | 28.3 |
| 1941 | 20 | 28.3 |
| 1942 | 37 | 28.3 |
| 1943 | 33 | 28.3 |
| 1944 | 23 | 28.3 |
| 1945 | 15 | 28.3 |
| 1946 | 23 | 28.3 |
| 1947 | 32 | 28.3 |
| 1948 | 30 | 28.3 |
| 1949 | 26 | 28.3 |
| 1950 | 16 | 29.2 |
| 1951 | 23 | 29.2 |
| 1952 | 25 | 29.2 |
| 1953 | 38 | 29.2 |
| 1954 | 33 | 29.2 |
| 1955 | 36 | 29.2 |
| 1956 | 31 | 29.2 |
| 1957 | 31 | 29.2 |
| 1958 | 26 | 29.2 |
| 1959 | 33 | 29.2 |
| Year | First date | Last date |
|---|---|---|
| 1910 | 1910-05-31 | 1910-10-10 |
| 1914 | 1914-07-12 | 1914-08-27 |
| 1915 | 1915-07-21 | 1915-08-31 |
| 1916 | 1916-06-17 | 1916-08-04 |
| 1918 | 1918-06-09 | 1918-09-21 |
| 1919 | 1919-05-19 | 1919-09-11 |
| 1920 | 1920-07-02 | 1920-08-22 |
| 1921 | 1921-06-21 | 1921-08-31 |
| 1922 | 1922-06-19 | 1922-09-13 |
| 1923 | 1923-06-10 | 1923-08-28 |
| 1924 | 1924-07-02 | 1924-08-17 |
| 1926 | 1926-06-07 | 1926-08-25 |
| 1927 | 1927-06-25 | 1927-09-10 |
| 1928 | 1928-05-25 | 1928-09-07 |
| 1929 | 1929-06-25 | 1929-09-19 |
| 1930 | 1930-06-07 | 1930-08-19 |
| 1931 | 1931-06-15 | 1931-09-09 |
| 1932 | 1932-06-22 | 1932-09-06 |
| 1933 | 1933-06-12 | 1933-09-07 |
| 1934 | 1934-05-21 | 1934-08-28 |
| 1936 | 1936-05-30 | 1936-08-15 |
| 1937 | 1937-06-21 | 1937-09-19 |
| 1938 | 1938-07-09 | 1938-08-24 |
| 1939 | 1939-06-28 | 1939-08-25 |
| 1940 | 1940-06-12 | 1940-08-31 |
| 1941 | 1941-06-21 | 1941-08-08 |
| 1942 | 1942-07-04 | 1942-09-02 |
| 1943 | 1943-07-05 | 1943-09-24 |
| 1944 | 1944-06-30 | 1944-09-06 |
| 1945 | 1945-06-21 | 1945-09-01 |
| 1946 | 1946-07-07 | 1946-08-20 |
| 1947 | 1947-07-02 | 1947-09-06 |
| 1948 | 1948-06-07 | 1948-09-15 |
| 1949 | 1949-06-10 | 1949-09-27 |
| 1950 | 1950-06-30 | 1950-09-05 |
| 1951 | 1951-07-03 | 1951-08-19 |
| 1952 | 1952-06-05 | 1952-09-03 |
| 1953 | 1953-06-11 | 1953-09-13 |
| 1954 | 1954-05-19 | 1954-09-01 |
| 1955 | 1955-06-21 | 1955-09-07 |
| 1956 | 1956-05-31 | 1956-09-19 |
| 1957 | 1957-06-04 | 1957-09-07 |
| 1958 | 1958-06-27 | 1958-09-07 |
| 1959 | 1959-06-12 | 1959-09-12 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 44 | 66 | 1919 | 33 |
| 35 C (95 F): Days | 18 | 10 | 1931 | 1 |
| 90 F (32.2 C): Days | 41 | 42 | 1919 | 13 |
| 100 F (37.8 C): Days | 2 | 2 | 1934 | 2 |
| 0 C (32 F): Ice days (max | 45 | 84 | 1926 | 32 |
| 0 C (32 F): Frost days (min | 46 | 257 | 1919 | 203 |
| -10 C (14 F): Days with min | 46 | 115 | 1923 | 57 |
| -20 C (-4 F): Days with min | 46 | 41 | 1932 | 6 |
| -30 C (-22 F): Days with min | 21 | 10 | 1924 | 1 |
| -40 C (-40 F): Days with min | 4 | 1 | 1919 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 44 | 23 | 1941 | 5 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 19 | 3 | 1940 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 23 | 13 | 1957 | 8 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 9 | 1 | 1921 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1910.
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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.
Data as of . Last revised (2025-12-31).