Den Helder Threshold Days by Year (NLE00100514)
6 fixed thresholds counted per year at Den Helder (NLE00100514): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Den Helder Thresholds
- Den Helder: nights with a minimum temperature at or below 0 C (32 F) in 64 years, most in 1963 with 84.
- Den Helder: days with a maximum temperature at or below 0 C (32 F) in 59 years, most in 1947 with 48.
- Den Helder: nights with a minimum temperature at or below -10 C (14 F) in 21 years, most in 1963 with 15.
- Den Helder: days with a maximum temperature at or above 30 C (86 F) in 15 years, most in 1923 with 5.
- 6 fixed thresholds have at least one qualifying day at Den Helder.
Days at or above 30 C (86 F)
15 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1911 | 3 | 1.8 |
| 1912 | 2 | 1.8 |
| 1915 | 1 | 1.8 |
| 1919 | 1 | 1.8 |
| 1923 | 5 | 3.5 |
| 1925 | 2 | 3.5 |
| 1932 | 1 | 1 |
| 1946 | 1 | 1 |
| 1947 | 1 | 1 |
| 1949 | 1 | 1 |
| 1953 | 1 | 1 |
| 1959 | 1 | 1 |
| 1964 | 1 | 1 |
| 1968 | 1 | 1 |
| 1969 | 1 | 1 |
| Year | First date | Last date |
|---|---|---|
| 1911 | 1911-07-28 | 1911-08-10 |
| 1912 | 1912-07-12 | 1912-07-13 |
| 1915 | 1915-06-08 | 1915-06-08 |
| 1919 | 1919-06-12 | 1919-06-12 |
| 1923 | 1923-07-10 | 1923-07-14 |
| 1925 | 1925-07-22 | 1925-07-23 |
| 1932 | 1932-08-19 | 1932-08-19 |
| 1946 | 1946-07-04 | 1946-07-04 |
| 1947 | 1947-06-27 | 1947-06-27 |
| 1949 | 1949-09-05 | 1949-09-05 |
| 1953 | 1953-08-12 | 1953-08-12 |
| 1959 | 1959-07-09 | 1959-07-09 |
| 1964 | 1964-06-13 | 1964-06-13 |
| 1968 | 1968-07-02 | 1968-07-02 |
| 1969 | 1969-07-29 | 1969-07-29 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 15 | 5 | 1923 | 1 |
| 90 F (32.2 C): Days | 3 | 1 | 1911 | 1 |
| 0 C (32 F): Ice days (max | 59 | 48 | 1947 | 7 |
| 0 C (32 F): Frost days (min | 64 | 84 | 1963 | 27 |
| -10 C (14 F): Days with min | 21 | 15 | 1963 | 2 |
| 20 C (68 F): Tropical nights (min | 8 | 6 | 1911 | 3 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1911.
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).