Ivory Island Threshold Days by Year (CA001063690)
9 fixed thresholds counted per year at Ivory Island (CA001063690): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Ivory Island Thresholds
- Ivory Island: days with 10 mm (0.39 in) or more of precipitation in 7 years, most in 1953 with 109.
- Ivory Island: days with 25 mm (0.98 in) or more of precipitation in 7 years, most in 1952 with 31.
- Ivory Island: days with 50 mm (1.97 in) or more of precipitation in 6 years, most in 1952 with 7.
- Ivory Island: days with 10 cm (3.9 in) or more of snowfall in 6 years, most in 1949 with 4.
- 9 fixed thresholds have at least one qualifying day at Ivory Island.
Nights at or below 0 C (32 F)
4 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1949 | 56 | 56 |
| 1950 | 60 | 47.3 |
| 1951 | 54 | 47.3 |
| 1953 | 28 | 47.3 |
| Year | First date | Last date |
|---|---|---|
| 1949 | 1949-01-01 | 1949-12-31 |
| 1950 | 1950-01-01 | 1950-12-04 |
| 1951 | 1951-01-03 | 1951-12-31 |
| 1953 | 1953-01-06 | 1953-12-15 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 0 C (32 F): Ice days (max | 5 | 25 | 1950 | 5 |
| 0 C (32 F): Frost days (min | 4 | 60 | 1950 | 28 |
| -10 C (14 F): Days with min | 3 | 13 | 1950 | 2 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 7 | 109 | 1953 | 87 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 7 | 31 | 1952 | 19 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 6 | 7 | 1952 | 2 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 1 | 1 | 1952 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 6 | 4 | 1949 | 2 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 1 | 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 1949.
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).