Charlotte Hall Threshold Days by Year (USC00181685)
16 fixed thresholds counted per year at Charlotte Hall (USC00181685): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Charlotte Hall Thresholds
- Charlotte Hall: days with 10 mm (0.39 in) or more of precipitation in 24 years, most in 1948 with 53.
- Charlotte Hall: days with 25 mm (0.98 in) or more of precipitation in 24 years, most in 1900 with 15.
- Charlotte Hall: days with a maximum temperature at or above 30 C (86 F) in 23 years, most in 1943 with 86.
- Charlotte Hall: days with a maximum temperature at or above 90 F (32.2 C) in 23 years, most in 1900 with 61.
- 16 fixed thresholds have at least one qualifying day at Charlotte Hall.
Days at or above 30 C (86 F)
23 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1895 | 78 | 61.3 |
| 1896 | 56 | 61.3 |
| 1897 | 31 | 61.3 |
| 1898 | 80 | 61.3 |
| 1900 | 77 | 77 |
| 1939 | 70 | 70 |
| 1942 | 66 | 56.3 |
| 1943 | 86 | 56.3 |
| 1944 | 64 | 56.3 |
| 1945 | 50 | 56.3 |
| 1946 | 36 | 56.3 |
| 1947 | 55 | 56.3 |
| 1948 | 46 | 56.3 |
| 1949 | 47 | 56.3 |
| 1950 | 36 | 51.9 |
| 1951 | 52 | 51.9 |
| 1952 | 58 | 51.9 |
| 1953 | 60 | 51.9 |
| 1954 | 61 | 51.9 |
| 1955 | 51 | 51.9 |
| 1956 | 53 | 51.9 |
| 1957 | 69 | 51.9 |
| 1958 | 27 | 51.9 |
| Year | First date | Last date |
|---|---|---|
| 1895 | 1895-04-25 | 1895-09-26 |
| 1896 | 1896-04-13 | 1896-08-23 |
| 1897 | 1897-04-25 | 1897-10-16 |
| 1898 | 1898-04-17 | 1898-10-04 |
| 1900 | 1900-05-08 | 1900-10-07 |
| 1939 | 1939-04-24 | 1939-10-10 |
| 1942 | 1942-04-06 | 1942-09-19 |
| 1943 | 1943-05-06 | 1943-09-16 |
| 1944 | 1944-05-04 | 1944-09-21 |
| 1945 | 1945-03-16 | 1945-09-29 |
| 1946 | 1946-04-23 | 1946-09-10 |
| 1947 | 1947-05-13 | 1947-10-23 |
| 1948 | 1948-03-21 | 1948-09-20 |
| 1949 | 1949-05-06 | 1949-08-27 |
| 1950 | 1950-05-06 | 1950-09-03 |
| 1951 | 1951-04-29 | 1951-10-06 |
| 1952 | 1952-04-22 | 1952-10-01 |
| 1953 | 1953-04-25 | 1953-09-30 |
| 1954 | 1954-05-02 | 1954-10-13 |
| 1955 | 1955-05-05 | 1955-08-23 |
| 1956 | 1956-05-13 | 1956-09-23 |
| 1957 | 1957-04-21 | 1957-09-22 |
| 1958 | 1958-05-04 | 1958-09-25 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 23 | 86 | 1943 | 27 |
| 35 C (95 F): Days | 19 | 32 | 1900 | 3 |
| 90 F (32.2 C): Days | 23 | 61 | 1900 | 8 |
| 100 F (37.8 C): Days | 5 | 4 | 1900 | 2 |
| 0 C (32 F): Ice days (max | 22 | 17 | 1895 | 15 |
| 0 C (32 F): Frost days (min | 23 | 111 | 1947 | 101 |
| -10 C (14 F): Days with min | 22 | 21 | 1895 | 15 |
| -20 C (-4 F): Days with min | 2 | 1 | 1895 | 1 |
| 20 C (68 F): Tropical nights (min | 23 | 53 | 1949 | 16 |
| 25 C (77 F): Days with min | 6 | 3 | 1954 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 24 | 53 | 1948 | 41 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 24 | 15 | 1900 | 11 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 23 | 6 | 1945 | 3 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 8 | 1 | 1939 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 10 | 3 | 1947 | 6 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 1 | 0 | n/a | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1895.
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).