Iosepa South Rch Threshold Days by Year (USC00424233)
14 fixed thresholds counted per year at Iosepa South Rch (USC00424233): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Iosepa South Rch Thresholds
- Iosepa South Rch: nights with a minimum temperature at or below 0 C (32 F) in 11 years, most in 1954 with 185.
- Iosepa South Rch: nights with a minimum temperature at or below -10 C (14 F) in 11 years, most in 1955 with 56.
- Iosepa South Rch: days with a maximum temperature at or above 30 C (86 F) in 10 years, most in 1958 with 119.
- Iosepa South Rch: days with a maximum temperature at or above 35 C (95 F) in 10 years, most in 1952 with 46.
- 14 fixed thresholds have at least one qualifying day at Iosepa South Rch.
Days at or above 30 C (86 F)
10 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1911 | 93 | 82.3 |
| 1912 | 72 | 82.3 |
| 1913 | 82 | 82.3 |
| 1952 | 103 | 98.7 |
| 1953 | 97 | 98.7 |
| 1954 | 88 | 98.7 |
| 1955 | 89 | 98.7 |
| 1956 | 105 | 98.7 |
| 1957 | 90 | 98.7 |
| 1958 | 119 | 98.7 |
| Year | First date | Last date |
|---|---|---|
| 1911 | 1911-05-05 | 1911-09-27 |
| 1912 | 1912-05-16 | 1912-09-03 |
| 1913 | 1913-05-06 | 1913-09-18 |
| 1952 | 1952-05-12 | 1952-10-05 |
| 1953 | 1953-06-10 | 1953-10-09 |
| 1954 | 1954-05-06 | 1954-10-18 |
| 1955 | 1955-05-05 | 1955-09-13 |
| 1956 | 1956-05-17 | 1956-10-07 |
| 1957 | 1957-06-02 | 1957-10-01 |
| 1958 | 1958-05-16 | 1958-10-15 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 10 | 119 | 1958 | 119 |
| 35 C (95 F): Days | 10 | 46 | 1952 | 42 |
| 40 C (104 F): Days | 4 | 2 | 1954 | 1 |
| 90 F (32.2 C): Days | 10 | 100 | 1958 | 100 |
| 100 F (37.8 C): Days | 10 | 14 | 1911 | 13 |
| 0 C (32 F): Ice days (max | 9 | 29 | 1913 | 2 |
| 0 C (32 F): Frost days (min | 11 | 185 | 1954 | 146 |
| -10 C (14 F): Days with min | 11 | 56 | 1955 | 31 |
| -20 C (-4 F): Days with min | 7 | 8 | 1956 | 2 |
| 20 C (68 F): Tropical nights (min | 8 | 7 | 1912 | 1 |
| 25 C (77 F): Days with min | 1 | 1 | 1912 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 7 | 16 | 1954 | 4 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 4 | 1 | 1952 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 3 | 3 | 1952 | 3 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1911.
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).