Somerset Threshold Days by Year
16 fixed thresholds counted per year at Somerset (USC00437401): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Somerset Thresholds
- Somerset: nights with a minimum temperature at or below 0 C (32 F) in 53 years, most in 1925 with 222.
- Somerset: nights with a minimum temperature at or below -10 C (14 F) in 53 years, most in 1947 with 108.
- Somerset: nights with a minimum temperature at or below -20 C (-4 F) in 53 years, most in 1948 with 43.
- Somerset: days with a maximum temperature at or below 0 C (32 F) in 52 years, most in 1920 with 113.
- 16 fixed thresholds have at least one qualifying day at Somerset.
Days at or above 30 C (86 F)
37 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1912 | 7 | 5.7 |
| 1913 | 5 | 5.7 |
| 1915 | 4 | 5.7 |
| 1916 | 5 | 5.7 |
| 1917 | 4 | 5.7 |
| 1918 | 5 | 5.7 |
| 1919 | 10 | 5.7 |
| 1920 | 1 | 10.2 |
| 1921 | 37 | 10.2 |
| 1922 | 8 | 10.2 |
| 1923 | 1 | 10.2 |
| 1925 | 12 | 10.2 |
| 1929 | 2 | 10.2 |
| 1932 | 2 | 5.3 |
| 1933 | 14 | 5.3 |
| 1934 | 12 | 5.3 |
| 1935 | 2 | 5.3 |
| 1936 | 5 | 5.3 |
| 1937 | 2 | 5.3 |
| 1938 | 3 | 5.3 |
| 1939 | 2 | 5.3 |
| 1941 | 4 | 6.1 |
| 1943 | 2 | 6.1 |
| 1944 | 13 | 6.1 |
| 1945 | 3 | 6.1 |
| 1946 | 5 | 6.1 |
| 1947 | 5 | 6.1 |
| 1948 | 5 | 6.1 |
| 1949 | 12 | 6.1 |
| 1952 | 5 | 3.8 |
| 1953 | 6 | 3.8 |
| 1955 | 2 | 3.8 |
| 1957 | 2 | 3.8 |
| 1962 | 1 | 2.3 |
| 1963 | 4 | 2.3 |
| 1964 | 3 | 2.3 |
| 1966 | 1 | 2.3 |
| Year | First date | Last date |
|---|---|---|
| 1912 | 1912-05-28 | 1912-07-10 |
| 1913 | 1913-07-01 | 1913-08-17 |
| 1915 | 1915-07-31 | 1915-09-16 |
| 1916 | 1916-07-12 | 1916-08-23 |
| 1917 | 1917-07-30 | 1917-08-02 |
| 1918 | 1918-07-21 | 1918-08-23 |
| 1919 | 1919-06-03 | 1919-07-18 |
| 1920 | 1920-08-08 | 1920-08-08 |
| 1921 | 1921-05-21 | 1921-09-10 |
| 1922 | 1922-07-12 | 1922-10-01 |
| 1923 | 1923-06-19 | 1923-06-19 |
| 1925 | 1925-06-03 | 1925-09-12 |
| 1929 | 1929-05-31 | 1929-09-05 |
| 1932 | 1932-05-17 | 1932-08-27 |
| 1933 | 1933-06-10 | 1933-09-28 |
| 1934 | 1934-05-23 | 1934-08-09 |
| 1935 | 1935-07-07 | 1935-08-19 |
| 1936 | 1936-07-09 | 1936-08-15 |
| 1937 | 1937-07-09 | 1937-08-22 |
| 1938 | 1938-08-05 | 1938-08-18 |
| 1939 | 1939-06-29 | 1939-09-17 |
| 1941 | 1941-04-21 | 1941-07-02 |
| 1943 | 1943-06-05 | 1943-06-27 |
| 1944 | 1944-05-06 | 1944-08-18 |
| 1945 | 1945-06-16 | 1945-09-09 |
| 1946 | 1946-06-26 | 1946-07-20 |
| 1947 | 1947-06-12 | 1947-08-26 |
| 1948 | 1948-07-13 | 1948-08-29 |
| 1949 | 1949-06-13 | 1949-08-26 |
| 1952 | 1952-06-27 | 1952-08-29 |
| 1953 | 1953-06-24 | 1953-09-05 |
| 1955 | 1955-07-23 | 1955-08-06 |
| 1957 | 1957-06-17 | 1957-06-25 |
| 1962 | 1962-05-20 | 1962-05-20 |
| 1963 | 1963-07-03 | 1963-07-30 |
| 1964 | 1964-07-01 | 1964-07-29 |
| 1966 | 1966-07-04 | 1966-07-04 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 37 | 37 | 1921 | 1 |
| 35 C (95 F): Days | 1 | 9 | 1921 | 9 |
| 90 F (32.2 C): Days | 16 | 25 | 1921 | 1 |
| 0 C (32 F): Ice days (max | 52 | 113 | 1920 | 90 |
| 0 C (32 F): Frost days (min | 53 | 222 | 1925 | 204 |
| -10 C (14 F): Days with min | 53 | 108 | 1947 | 83 |
| -20 C (-4 F): Days with min | 53 | 43 | 1948 | 22 |
| -30 C (-22 F): Days with min | 28 | 5 | 1918 | 3 |
| 20 C (68 F): Tropical nights (min | 11 | 12 | 1921 | 1 |
| 25 C (77 F): Days with min | 1 | 1 | 1921 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 39 | 63 | 1951 | 48 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 39 | 19 | 1940 | 5 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 29 | 5 | 1955 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 4 | 1 | 1940 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 23 | 20 | 1947 | 16 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 19 | 4 | 1947 | 2 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1912.
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).