Groningen Threshold Days by Year
8 fixed thresholds counted per year at Groningen (NLE00100526): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Groningen Thresholds
- Groningen: days with a maximum temperature at or below 0 C (32 F) in 45 years, most in 1947 with 52.
- Groningen: nights with a minimum temperature at or below 0 C (32 F) in 45 years, most in 1917 with 101.
- Groningen: days with a maximum temperature at or above 30 C (86 F) in 35 years, most in 1947 with 13.
- Groningen: nights with a minimum temperature at or below -10 C (14 F) in 25 years, most in 1940 with 26.
- 8 fixed thresholds have at least one qualifying day at Groningen.
Days at or above 30 C (86 F)
35 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1907 | 2 | 2 |
| 1910 | 1 | 3.3 |
| 1911 | 12 | 3.3 |
| 1912 | 2 | 3.3 |
| 1914 | 1 | 3.3 |
| 1915 | 1 | 3.3 |
| 1917 | 3 | 3.3 |
| 1919 | 3 | 3.3 |
| 1921 | 3 | 3.3 |
| 1922 | 3 | 3.3 |
| 1923 | 7 | 3.3 |
| 1925 | 4 | 3.3 |
| 1926 | 1 | 3.3 |
| 1928 | 3 | 3.3 |
| 1929 | 2 | 3.3 |
| 1930 | 4 | 2.5 |
| 1931 | 3 | 2.5 |
| 1932 | 4 | 2.5 |
| 1933 | 1 | 2.5 |
| 1934 | 1 | 2.5 |
| 1935 | 3 | 2.5 |
| 1936 | 2 | 2.5 |
| 1937 | 2 | 2.5 |
| 1938 | 3 | 2.5 |
| 1939 | 2 | 2.5 |
| 1941 | 10 | 5.4 |
| 1942 | 5 | 5.4 |
| 1943 | 2 | 5.4 |
| 1944 | 6 | 5.4 |
| 1945 | 5 | 5.4 |
| 1946 | 1 | 5.4 |
| 1947 | 13 | 5.4 |
| 1948 | 6 | 5.4 |
| 1949 | 1 | 5.4 |
| 1950 | 1 | 1 |
| Year | First date | Last date |
|---|---|---|
| 1907 | 1907-05-12 | 1907-05-13 |
| 1910 | 1910-06-10 | 1910-06-10 |
| 1911 | 1911-07-22 | 1911-09-02 |
| 1912 | 1912-07-12 | 1912-07-13 |
| 1914 | 1914-07-02 | 1914-07-02 |
| 1915 | 1915-06-08 | 1915-06-08 |
| 1917 | 1917-06-16 | 1917-06-18 |
| 1919 | 1919-06-12 | 1919-09-13 |
| 1921 | 1921-05-25 | 1921-08-02 |
| 1922 | 1922-05-22 | 1922-05-24 |
| 1923 | 1923-07-07 | 1923-07-14 |
| 1925 | 1925-07-20 | 1925-07-23 |
| 1926 | 1926-07-14 | 1926-07-14 |
| 1928 | 1928-07-12 | 1928-09-09 |
| 1929 | 1929-07-17 | 1929-07-20 |
| 1930 | 1930-06-19 | 1930-08-28 |
| 1931 | 1931-05-24 | 1931-08-05 |
| 1932 | 1932-07-12 | 1932-08-20 |
| 1933 | 1933-07-27 | 1933-07-27 |
| 1934 | 1934-09-08 | 1934-09-08 |
| 1935 | 1935-06-25 | 1935-08-23 |
| 1936 | 1936-06-20 | 1936-06-21 |
| 1937 | 1937-08-07 | 1937-08-08 |
| 1938 | 1938-08-04 | 1938-08-08 |
| 1939 | 1939-06-06 | 1939-07-05 |
| 1941 | 1941-06-22 | 1941-07-13 |
| 1942 | 1942-07-05 | 1942-08-29 |
| 1943 | 1943-07-27 | 1943-08-21 |
| 1944 | 1944-05-29 | 1944-08-24 |
| 1945 | 1945-05-13 | 1945-07-15 |
| 1946 | 1946-07-04 | 1946-07-04 |
| 1947 | 1947-05-31 | 1947-09-16 |
| 1948 | 1948-06-14 | 1948-07-31 |
| 1949 | 1949-09-05 | 1949-09-05 |
| 1950 | 1950-06-07 | 1950-06-07 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 35 | 13 | 1947 | 1 |
| 35 C (95 F): Days | 3 | 1 | 1911 | 1 |
| 90 F (32.2 C): Days | 18 | 6 | 1941 | 1 |
| 0 C (32 F): Ice days (max | 45 | 52 | 1947 | 1 |
| 0 C (32 F): Frost days (min | 45 | 101 | 1917 | 77 |
| -10 C (14 F): Days with min | 25 | 26 | 1940 | 2 |
| -20 C (-4 F): Days with min | 1 | 1 | 1923 | 1 |
| 20 C (68 F): Tropical nights (min | 2 | 3 | 1941 | 2 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1907.
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).