Boltenhagen Threshold Days by Year (GMM00010161)
11 fixed thresholds counted per year at Boltenhagen (GMM00010161): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Boltenhagen Thresholds
- Boltenhagen: nights with a minimum temperature at or below 0 C (32 F) in 80 years, most in 1996 with 114.
- Boltenhagen: days with 10 mm (0.39 in) or more of precipitation in 80 years, most in 1994 with 25.
- Boltenhagen: days with a maximum temperature at or below 0 C (32 F) in 79 years, most in 1963 with 65.
- Boltenhagen: days with 25 mm (0.98 in) or more of precipitation in 53 years, most in 2010 with 6.
- 11 fixed thresholds have at least one qualifying day at Boltenhagen.
Days at or above 30 C (86 F)
50 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1947 | 4 | 3.5 |
| 1948 | 3 | 3.5 |
| 1952 | 2 | 1.8 |
| 1953 | 1 | 1.8 |
| 1954 | 1 | 1.8 |
| 1957 | 2 | 1.8 |
| 1959 | 3 | 1.8 |
| 1963 | 3 | 1.8 |
| 1964 | 2 | 1.8 |
| 1966 | 1 | 1.8 |
| 1969 | 1 | 1.8 |
| 1973 | 2 | 1.3 |
| 1974 | 1 | 1.3 |
| 1975 | 1 | 1.3 |
| 1979 | 1 | 1.3 |
| 1982 | 1 | 1.5 |
| 1983 | 3 | 1.5 |
| 1986 | 1 | 1.5 |
| 1989 | 1 | 1.5 |
| 1990 | 1 | 1.7 |
| 1991 | 1 | 1.7 |
| 1992 | 2 | 1.7 |
| 1994 | 4 | 1.7 |
| 1995 | 1 | 1.7 |
| 1996 | 1 | 1.7 |
| 1997 | 3 | 1.7 |
| 1998 | 1 | 1.7 |
| 1999 | 1 | 1.7 |
| 2000 | 1 | 2 |
| 2001 | 3 | 2 |
| 2002 | 2 | 2 |
| 2003 | 1 | 2 |
| 2005 | 1 | 2 |
| 2006 | 4 | 2 |
| 2008 | 2 | 2 |
| 2009 | 2 | 2 |
| 2010 | 4 | 3 |
| 2012 | 2 | 3 |
| 2013 | 2 | 3 |
| 2015 | 1 | 3 |
| 2016 | 3 | 3 |
| 2018 | 4 | 3 |
| 2019 | 5 | 3 |
| 2020 | 1 | 3.3 |
| 2021 | 2 | 3.3 |
| 2022 | 5 | 3.3 |
| 2023 | 3 | 3.3 |
| 2024 | 2 | 3.3 |
| 2025 | 3 | 3.3 |
| 2026 | 7 | 3.3 |
| Year | First date | Last date |
|---|---|---|
| 1947 | 1947-06-02 | 1947-09-20 |
| 1948 | 1948-07-21 | 1948-08-02 |
| 1952 | 1952-07-02 | 1952-08-12 |
| 1953 | 1953-07-03 | 1953-07-03 |
| 1954 | 1954-06-20 | 1954-06-20 |
| 1957 | 1957-06-29 | 1957-07-01 |
| 1959 | 1959-07-09 | 1959-08-22 |
| 1963 | 1963-07-23 | 1963-08-04 |
| 1964 | 1964-07-15 | 1964-08-27 |
| 1966 | 1966-06-17 | 1966-06-17 |
| 1969 | 1969-07-24 | 1969-07-24 |
| 1973 | 1973-06-27 | 1973-08-06 |
| 1974 | 1974-08-16 | 1974-08-16 |
| 1975 | 1975-07-09 | 1975-07-09 |
| 1979 | 1979-06-01 | 1979-06-01 |
| 1982 | 1982-07-15 | 1982-07-15 |
| 1983 | 1983-07-18 | 1983-09-01 |
| 1986 | 1986-07-03 | 1986-07-03 |
| 1989 | 1989-07-08 | 1989-07-08 |
| 1990 | 1990-08-04 | 1990-08-04 |
| 1991 | 1991-08-06 | 1991-08-06 |
| 1992 | 1992-07-21 | 1992-08-09 |
| 1994 | 1994-07-13 | 1994-08-05 |
| 1995 | 1995-07-21 | 1995-07-21 |
| 1996 | 1996-06-08 | 1996-06-08 |
| 1997 | 1997-08-14 | 1997-08-25 |
| 1998 | 1998-07-21 | 1998-07-21 |
| 1999 | 1999-07-19 | 1999-07-19 |
| 2000 | 2000-06-21 | 2000-06-21 |
| 2001 | 2001-08-15 | 2001-08-26 |
| 2002 | 2002-06-18 | 2002-07-09 |
| 2003 | 2003-06-08 | 2003-06-08 |
| 2005 | 2005-05-28 | 2005-05-28 |
| 2006 | 2006-06-13 | 2006-07-23 |
| 2008 | 2008-08-01 | 2008-08-07 |
| 2009 | 2009-08-20 | 2009-09-01 |
| 2010 | 2010-07-02 | 2010-07-21 |
| 2012 | 2012-08-19 | 2012-08-20 |
| 2013 | 2013-06-19 | 2013-07-28 |
| 2015 | 2015-08-04 | 2015-08-04 |
| 2016 | 2016-06-23 | 2016-08-28 |
| 2018 | 2018-07-28 | 2018-08-08 |
| 2019 | 2019-06-25 | 2019-08-28 |
| 2020 | 2020-08-06 | 2020-08-06 |
| 2021 | 2021-06-17 | 2021-06-19 |
| 2022 | 2022-06-24 | 2022-08-04 |
| 2023 | 2023-06-26 | 2023-09-09 |
| 2024 | 2024-08-29 | 2024-09-08 |
| 2025 | 2025-06-22 | 2025-08-14 |
| 2026 | 2026-06-27 | 2026-08-14 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 50 | 5 | 2019 | 7 |
| 35 C (95 F): Days | 5 | 2 | 2022 | 1 |
| 90 F (32.2 C): Days | 24 | 3 | 2018 | 3 |
| 0 C (32 F): Ice days (max | 79 | 65 | 1963 | 21 |
| 0 C (32 F): Frost days (min | 80 | 114 | 1996 | 46 |
| -10 C (14 F): Days with min | 51 | 34 | 1963 | 2 |
| -20 C (-4 F): Days with min | 2 | 4 | 1956 | 4 |
| 20 C (68 F): Tropical nights (min | 13 | 4 | 1994 | 2 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 80 | 25 | 1994 | 6 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 53 | 6 | 2010 | 1 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 7 | 1 | 1960 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1947.
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 (2026-10-13).