Alakahi Upper Threshold Days by Year (USC00510137)
5 fixed thresholds counted per year at Alakahi Upper (USC00510137): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Alakahi Upper Thresholds
- Alakahi Upper: days with 10 mm (0.39 in) or more of precipitation in 17 years, most in 1936 with 182.
- Alakahi Upper: days with 25 mm (0.98 in) or more of precipitation in 17 years, most in 1936 with 104.
- Alakahi Upper: days with 50 mm (1.97 in) or more of precipitation in 17 years, most in 1936 with 37.
- Alakahi Upper: days with 100 mm (3.94 in) or more of precipitation in 15 years, most in 1936 with 11.
- 5 fixed thresholds have at least one qualifying day at Alakahi Upper.
Days with 10 mm (0.39 in) or more of precipitation
17 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1919 | 93 | 93 |
| 1921 | 132 | 119.8 |
| 1922 | 112 | 119.8 |
| 1923 | 126 | 119.8 |
| 1924 | 109 | 119.8 |
| 1935 | 120 | 146.6 |
| 1936 | 182 | 146.6 |
| 1937 | 162 | 146.6 |
| 1938 | 117 | 146.6 |
| 1939 | 152 | 146.6 |
| 1940 | 106 | 121.6 |
| 1941 | 169 | 121.6 |
| 1942 | 122 | 121.6 |
| 1943 | 114 | 121.6 |
| 1944 | 133 | 121.6 |
| 1945 | 79 | 121.6 |
| 1946 | 128 | 121.6 |
| Year | First date | Last date |
|---|---|---|
| 1919 | 1919-01-01 | 1919-12-30 |
| 1921 | 1921-01-02 | 1921-12-27 |
| 1922 | 1922-01-04 | 1922-12-30 |
| 1923 | 1923-01-02 | 1923-12-19 |
| 1924 | 1924-01-01 | 1924-12-31 |
| 1935 | 1935-01-01 | 1935-12-21 |
| 1936 | 1936-01-08 | 1936-12-31 |
| 1937 | 1937-01-01 | 1937-12-29 |
| 1938 | 1938-01-05 | 1938-12-31 |
| 1939 | 1939-01-01 | 1939-12-24 |
| 1940 | 1940-02-10 | 1940-12-28 |
| 1941 | 1941-01-01 | 1941-12-30 |
| 1942 | 1942-01-05 | 1942-12-27 |
| 1943 | 1943-01-03 | 1943-12-28 |
| 1944 | 1944-01-05 | 1944-12-27 |
| 1945 | 1945-01-21 | 1945-12-04 |
| 1946 | 1946-01-02 | 1946-12-30 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 10 mm (0.39 in): Days with 10 mm or more rain | 17 | 182 | 1936 | 128 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 17 | 104 | 1936 | 55 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 17 | 37 | 1936 | 16 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 15 | 11 | 1936 | 6 |
| 200 mm (7.87 in): Days with 200 mm or more rain | 6 | 1 | 1923 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1919.
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).