Merritt Island Threshold Days by Year
12 fixed thresholds counted per year at Merritt Island (USC00085643): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Merritt Island Thresholds
- Merritt Island: days with a maximum temperature at or above 30 C (86 F) in 19 years, most in 1955 with 167.
- Merritt Island: days with a maximum temperature at or above 90 F (32.2 C) in 19 years, most in 1952 with 92.
- Merritt Island: nights with a minimum temperature at or above 20 C (68 F) in 19 years, most in 1902 with 210.
- Merritt Island: nights with a minimum temperature at or above 25 C (77 F) in 19 years, most in 1900 with 75.
- 12 fixed thresholds have at least one qualifying day at Merritt Island.
Days at or above 30 C (86 F)
19 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1897 | 115 | 125.7 |
| 1898 | 135 | 125.7 |
| 1899 | 127 | 125.7 |
| 1900 | 122 | 111.8 |
| 1901 | 106 | 111.8 |
| 1902 | 121 | 111.8 |
| 1903 | 97 | 111.8 |
| 1904 | 102 | 111.8 |
| 1905 | 105 | 111.8 |
| 1906 | 115 | 111.8 |
| 1907 | 122 | 111.8 |
| 1909 | 116 | 111.8 |
| 1949 | 135 | 135 |
| 1950 | 128 | 141.3 |
| 1951 | 132 | 141.3 |
| 1952 | 148 | 141.3 |
| 1953 | 140 | 141.3 |
| 1954 | 133 | 141.3 |
| 1955 | 167 | 141.3 |
| Year | First date | Last date |
|---|---|---|
| 1897 | 1897-02-23 | 1897-10-13 |
| 1898 | 1898-04-05 | 1898-10-14 |
| 1899 | 1899-03-28 | 1899-10-01 |
| 1900 | 1900-04-12 | 1900-11-03 |
| 1901 | 1901-03-31 | 1901-10-12 |
| 1902 | 1902-04-14 | 1902-10-18 |
| 1903 | 1903-05-31 | 1903-10-08 |
| 1904 | 1904-05-26 | 1904-10-21 |
| 1905 | 1905-04-27 | 1905-10-11 |
| 1906 | 1906-04-29 | 1906-10-09 |
| 1907 | 1907-03-20 | 1907-11-01 |
| 1909 | 1909-01-04 | 1909-09-20 |
| 1949 | 1949-03-29 | 1949-10-31 |
| 1950 | 1950-03-28 | 1950-10-23 |
| 1951 | 1951-05-04 | 1951-11-02 |
| 1952 | 1952-03-19 | 1952-10-16 |
| 1953 | 1953-03-04 | 1953-11-23 |
| 1954 | 1954-02-17 | 1954-10-15 |
| 1955 | 1955-03-06 | 1955-10-29 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 19 | 167 | 1955 | 167 |
| 35 C (95 F): Days | 14 | 21 | 1952 | 10 |
| 90 F (32.2 C): Days | 19 | 92 | 1952 | 87 |
| 100 F (37.8 C): Days | 1 | 2 | 1950 | 2 |
| 0 C (32 F): Frost days (min | 10 | 4 | 1909 | 1 |
| 20 C (68 F): Tropical nights (min | 19 | 210 | 1902 | 147 |
| 25 C (77 F): Days with min | 19 | 75 | 1900 | 11 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 16 | 58 | 1953 | 34 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 16 | 20 | 1905 | 12 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 15 | 7 | 1902 | 6 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 6 | 2 | 1899 | 1 |
| 200 mm (7.87 in): Days with 200 mm or more rain | 1 | 1 | 1899 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1897.
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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.
Data as of . Last revised (2025-12-31).