Hiram 2 S Threshold Days by Year (USC00173800)
18 fixed thresholds counted per year at Hiram 2 S (USC00173800): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Hiram 2 S Thresholds
- Hiram 2 S: days with 10 mm (0.39 in) or more of precipitation in 36 years, most in 1954 with 54.
- Hiram 2 S: days with 25 mm (0.98 in) or more of precipitation in 36 years, most in 1960 with 20.
- Hiram 2 S: days with 50 mm (1.97 in) or more of precipitation in 28 years, most in 1937 with 5.
- Hiram 2 S: days with a maximum temperature at or above 30 C (86 F) in 26 years, most in 1937 with 69.
- 18 fixed thresholds have at least one qualifying day at Hiram 2 S.
Days at or above 30 C (86 F)
26 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1932 | 32 | 40.6 |
| 1933 | 31 | 40.6 |
| 1934 | 32 | 40.6 |
| 1935 | 44 | 40.6 |
| 1936 | 37 | 40.6 |
| 1937 | 69 | 40.6 |
| 1938 | 36 | 40.6 |
| 1939 | 44 | 40.6 |
| 1940 | 54 | 47.9 |
| 1941 | 57 | 47.9 |
| 1942 | 48 | 47.9 |
| 1943 | 40 | 47.9 |
| 1944 | 46 | 47.9 |
| 1945 | 50 | 47.9 |
| 1947 | 40 | 47.9 |
| 1954 | 8 | 21.5 |
| 1955 | 38 | 21.5 |
| 1956 | 16 | 21.5 |
| 1957 | 20 | 21.5 |
| 1958 | 11 | 21.5 |
| 1959 | 36 | 21.5 |
| 1960 | 30 | 24.6 |
| 1961 | 31 | 24.6 |
| 1962 | 14 | 24.6 |
| 1963 | 28 | 24.6 |
| 1964 | 20 | 24.6 |
| Year | First date | Last date |
|---|---|---|
| 1932 | 1932-05-16 | 1932-09-03 |
| 1933 | 1933-05-18 | 1933-09-27 |
| 1934 | 1934-05-29 | 1934-08-19 |
| 1935 | 1935-05-27 | 1935-08-21 |
| 1936 | 1936-05-02 | 1936-09-23 |
| 1937 | 1937-05-04 | 1937-10-05 |
| 1938 | 1938-04-27 | 1938-10-13 |
| 1939 | 1939-06-03 | 1939-10-10 |
| 1940 | 1940-05-27 | 1940-09-20 |
| 1941 | 1941-04-20 | 1941-09-22 |
| 1942 | 1942-05-29 | 1942-09-18 |
| 1943 | 1943-05-17 | 1943-10-13 |
| 1944 | 1944-05-04 | 1944-09-16 |
| 1945 | 1945-04-11 | 1945-09-25 |
| 1947 | 1947-05-24 | 1947-10-17 |
| 1954 | 1954-06-20 | 1954-08-25 |
| 1955 | 1955-05-24 | 1955-09-19 |
| 1956 | 1956-06-01 | 1956-08-18 |
| 1957 | 1957-06-11 | 1957-09-22 |
| 1958 | 1958-06-30 | 1958-08-31 |
| 1959 | 1959-05-28 | 1959-09-09 |
| 1960 | 1960-05-26 | 1960-09-09 |
| 1961 | 1961-05-14 | 1961-09-26 |
| 1962 | 1962-04-27 | 1962-08-27 |
| 1963 | 1963-06-01 | 1963-10-07 |
| 1964 | 1964-05-23 | 1964-08-30 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 26 | 69 | 1937 | 20 |
| 35 C (95 F): Days | 20 | 28 | 1937 | 3 |
| 40 C (104 F): Days | 2 | 1 | 1937 | 1 |
| 90 F (32.2 C): Days | 26 | 49 | 1937 | 11 |
| 100 F (37.8 C): Days | 10 | 11 | 1937 | 1 |
| 0 C (32 F): Ice days (max | 26 | 59 | 1943 | 38 |
| 0 C (32 F): Frost days (min | 26 | 198 | 1956 | 183 |
| -10 C (14 F): Days with min | 26 | 81 | 1963 | 65 |
| -20 C (-4 F): Days with min | 26 | 32 | 1963 | 15 |
| -30 C (-22 F): Days with min | 11 | 5 | 1962 | 1 |
| 20 C (68 F): Tropical nights (min | 21 | 12 | 1937 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 36 | 54 | 1954 | 34 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 36 | 20 | 1960 | 10 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 28 | 5 | 1937 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 7 | 1 | 1937 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 19 | 15 | 1956 | 9 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 14 | 4 | 1964 | 4 |
| 50 cm (19.7 in): Days with 50 cm or more snowfall | 3 | 1 | 1955 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1932.
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 (2025-12-31).