Valkenburg Threshold Days by Year (NLE00101982)
6 fixed thresholds counted per year at Valkenburg (NLE00101982): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Valkenburg Thresholds
- Valkenburg: nights with a minimum temperature at or below 0 C (32 F) in 65 years, most in 1963 with 98.
- Valkenburg: days with a maximum temperature at or below 0 C (32 F) in 54 years, most in 1963 with 41.
- Valkenburg: days with a maximum temperature at or above 30 C (86 F) in 39 years, most in 1976 with 7.
- Valkenburg: nights with a minimum temperature at or below -10 C (14 F) in 27 years, most in 1963 with 22.
- 6 fixed thresholds have at least one qualifying day at Valkenburg.
Days at or above 30 C (86 F)
39 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1952 | 2 | 3 |
| 1953 | 1 | 3 |
| 1957 | 5 | 3 |
| 1959 | 4 | 3 |
| 1961 | 1 | 1 |
| 1964 | 1 | 1 |
| 1966 | 1 | 1 |
| 1968 | 1 | 1 |
| 1969 | 1 | 1 |
| 1973 | 2 | 3 |
| 1975 | 4 | 3 |
| 1976 | 7 | 3 |
| 1977 | 1 | 3 |
| 1978 | 1 | 3 |
| 1982 | 4 | 3.3 |
| 1983 | 5 | 3.3 |
| 1984 | 2 | 3.3 |
| 1989 | 2 | 3.3 |
| 1990 | 3 | 2.6 |
| 1991 | 1 | 2.6 |
| 1994 | 4 | 2.6 |
| 1995 | 4 | 2.6 |
| 1996 | 1 | 2.6 |
| 1997 | 3 | 2.6 |
| 1999 | 2 | 2.6 |
| 2000 | 2 | 2.8 |
| 2001 | 3 | 2.8 |
| 2002 | 1 | 2.8 |
| 2003 | 4 | 2.8 |
| 2004 | 2 | 2.8 |
| 2005 | 3 | 2.8 |
| 2006 | 6 | 2.8 |
| 2009 | 1 | 2.8 |
| 2010 | 2 | 2.3 |
| 2011 | 1 | 2.3 |
| 2012 | 2 | 2.3 |
| 2013 | 5 | 2.3 |
| 2014 | 2 | 2.3 |
| 2015 | 2 | 2.3 |
| Year | First date | Last date |
|---|---|---|
| 1952 | 1952-07-01 | 1952-07-06 |
| 1953 | 1953-08-12 | 1953-08-12 |
| 1957 | 1957-06-17 | 1957-07-06 |
| 1959 | 1959-07-05 | 1959-07-18 |
| 1961 | 1961-07-02 | 1961-07-02 |
| 1964 | 1964-08-26 | 1964-08-26 |
| 1966 | 1966-06-10 | 1966-06-10 |
| 1968 | 1968-07-02 | 1968-07-02 |
| 1969 | 1969-08-02 | 1969-08-02 |
| 1973 | 1973-07-02 | 1973-07-05 |
| 1975 | 1975-08-04 | 1975-08-08 |
| 1976 | 1976-06-09 | 1976-07-05 |
| 1977 | 1977-06-13 | 1977-06-13 |
| 1978 | 1978-07-30 | 1978-07-30 |
| 1982 | 1982-07-09 | 1982-08-03 |
| 1983 | 1983-06-22 | 1983-08-19 |
| 1984 | 1984-07-30 | 1984-08-23 |
| 1989 | 1989-07-06 | 1989-07-22 |
| 1990 | 1990-08-02 | 1990-08-04 |
| 1991 | 1991-07-11 | 1991-07-11 |
| 1994 | 1994-07-12 | 1994-08-04 |
| 1995 | 1995-07-26 | 1995-08-19 |
| 1996 | 1996-06-07 | 1996-06-07 |
| 1997 | 1997-08-10 | 1997-08-12 |
| 1999 | 1999-08-01 | 1999-08-02 |
| 2000 | 2000-06-19 | 2000-06-20 |
| 2001 | 2001-07-05 | 2001-08-25 |
| 2002 | 2002-07-29 | 2002-07-29 |
| 2003 | 2003-07-16 | 2003-08-12 |
| 2004 | 2004-06-08 | 2004-08-09 |
| 2005 | 2005-05-27 | 2005-06-24 |
| 2006 | 2006-07-04 | 2006-07-26 |
| 2009 | 2009-08-20 | 2009-08-20 |
| 2010 | 2010-07-09 | 2010-07-20 |
| 2011 | 2011-06-28 | 2011-06-28 |
| 2012 | 2012-08-18 | 2012-08-19 |
| 2013 | 2013-07-21 | 2013-09-05 |
| 2014 | 2014-07-18 | 2014-07-19 |
| 2015 | 2015-06-05 | 2015-07-01 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 39 | 7 | 1976 | 2 |
| 90 F (32.2 C): Days | 13 | 2 | 1975 | 1 |
| 0 C (32 F): Ice days (max | 54 | 41 | 1963 | 13 |
| 0 C (32 F): Frost days (min | 65 | 98 | 1963 | 29 |
| -10 C (14 F): Days with min | 27 | 22 | 1963 | 4 |
| 20 C (68 F): Tropical nights (min | 2 | 1 | 2004 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1952.
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).