Marietta 3 NNW Threshold Days by Year (USC00455028)
13 fixed thresholds counted per year at Marietta 3 NNW (USC00455028): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Marietta 3 NNW Thresholds
- Marietta 3 NNW: nights with a minimum temperature at or below 0 C (32 F) in 42 years, most in 1930 with 116.
- Marietta 3 NNW: days with a maximum temperature at or below 0 C (32 F) in 37 years, most in 1916 with 28.
- Marietta 3 NNW: days with 10 mm (0.39 in) or more of precipitation in 35 years, most in 1920 with 42.
- Marietta 3 NNW: days with 25 mm (0.98 in) or more of precipitation in 31 years, most in 1932 with 9.
- 13 fixed thresholds have at least one qualifying day at Marietta 3 NNW.
Days at or above 30 C (86 F)
30 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1914 | 1 | 6.7 |
| 1915 | 2 | 6.7 |
| 1918 | 17 | 6.7 |
| 1920 | 1 | 2.5 |
| 1924 | 2 | 2.5 |
| 1925 | 4 | 2.5 |
| 1926 | 2 | 2.5 |
| 1927 | 5 | 2.5 |
| 1928 | 1 | 2.5 |
| 1930 | 1 | 1.6 |
| 1931 | 2 | 1.6 |
| 1932 | 1 | 1.6 |
| 1933 | 3 | 1.6 |
| 1934 | 1 | 1.6 |
| 1935 | 1 | 1.6 |
| 1939 | 2 | 1.6 |
| 1941 | 5 | 3.6 |
| 1942 | 5 | 3.6 |
| 1943 | 4 | 3.6 |
| 1944 | 3 | 3.6 |
| 1945 | 6 | 3.6 |
| 1946 | 4 | 3.6 |
| 1947 | 1 | 3.6 |
| 1948 | 3 | 3.6 |
| 1949 | 1 | 3.6 |
| 1951 | 6 | 2.4 |
| 1952 | 2 | 2.4 |
| 1953 | 1 | 2.4 |
| 1955 | 1 | 2.4 |
| 1956 | 2 | 2.4 |
| Year | First date | Last date |
|---|---|---|
| 1914 | 1914-07-18 | 1914-07-18 |
| 1915 | 1915-06-30 | 1915-07-01 |
| 1918 | 1918-06-04 | 1918-06-30 |
| 1920 | 1920-07-07 | 1920-07-07 |
| 1924 | 1924-07-24 | 1924-07-25 |
| 1925 | 1925-05-16 | 1925-08-08 |
| 1926 | 1926-06-24 | 1926-07-11 |
| 1927 | 1927-07-16 | 1927-08-16 |
| 1928 | 1928-07-25 | 1928-07-25 |
| 1930 | 1930-07-12 | 1930-07-12 |
| 1931 | 1931-07-08 | 1931-08-09 |
| 1932 | 1932-08-06 | 1932-08-06 |
| 1933 | 1933-08-24 | 1933-08-26 |
| 1934 | 1934-08-23 | 1934-08-23 |
| 1935 | 1935-08-27 | 1935-08-27 |
| 1939 | 1939-08-03 | 1939-08-09 |
| 1941 | 1941-07-14 | 1941-07-18 |
| 1942 | 1942-06-30 | 1942-07-20 |
| 1943 | 1943-08-01 | 1943-09-15 |
| 1944 | 1944-07-18 | 1944-08-30 |
| 1945 | 1945-07-01 | 1945-08-06 |
| 1946 | 1946-07-19 | 1946-08-19 |
| 1947 | 1947-05-24 | 1947-05-24 |
| 1948 | 1948-06-09 | 1948-06-28 |
| 1949 | 1949-09-05 | 1949-09-05 |
| 1951 | 1951-06-29 | 1951-09-15 |
| 1952 | 1952-08-03 | 1952-09-20 |
| 1953 | 1953-07-07 | 1953-07-07 |
| 1955 | 1955-06-09 | 1955-06-09 |
| 1956 | 1956-05-30 | 1956-07-19 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 30 | 17 | 1918 | 2 |
| 35 C (95 F): Days | 2 | 7 | 1918 | 1 |
| 90 F (32.2 C): Days | 15 | 12 | 1918 | 1 |
| 100 F (37.8 C): Days | 1 | 1 | 1918 | 1 |
| 0 C (32 F): Ice days (max | 37 | 28 | 1916 | 15 |
| 0 C (32 F): Frost days (min | 42 | 116 | 1930 | 83 |
| -10 C (14 F): Days with min | 27 | 23 | 1950 | 5 |
| 20 C (68 F): Tropical nights (min | 1 | 2 | 1918 | 2 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 35 | 42 | 1920 | 17 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 31 | 9 | 1932 | 2 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 2 | 1 | 1917 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 10 | 3 | 1949 | 2 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 1 | 1 | 1936 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1914.
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).