Dongtai Threshold Days by Year (CHM00058251)
14 fixed thresholds counted per year at Dongtai (CHM00058251): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Dongtai Thresholds
- Dongtai: days with a maximum temperature at or above 30 C (86 F) in 68 years, most in 2024 with 107.
- Dongtai: days with a maximum temperature at or above 90 F (32.2 C) in 68 years, most in 2022 with 78.
- Dongtai: nights with a minimum temperature at or below 0 C (32 F) in 67 years, most in 1967 with 86.
- Dongtai: nights with a minimum temperature at or above 20 C (68 F) in 67 years, most in 2025 with 119.
- 14 fixed thresholds have at least one qualifying day at Dongtai.
Days at or above 30 C (86 F)
68 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1953 | 80 | 61.4 |
| 1954 | 40 | 61.4 |
| 1955 | 73 | 61.4 |
| 1956 | 54 | 61.4 |
| 1957 | 42 | 61.4 |
| 1958 | 70 | 61.4 |
| 1959 | 71 | 61.4 |
| 1960 | 51 | 65.5 |
| 1961 | 76 | 65.5 |
| 1962 | 57 | 65.5 |
| 1963 | 60 | 65.5 |
| 1964 | 85 | 65.5 |
| 1965 | 60 | 65.5 |
| 1966 | 62 | 65.5 |
| 1967 | 88 | 65.5 |
| 1968 | 59 | 65.5 |
| 1969 | 57 | 65.5 |
| 1970 | 54 | 57.3 |
| 1971 | 69 | 57.3 |
| 1972 | 44 | 57.3 |
| 1973 | 60 | 57.3 |
| 1974 | 53 | 57.3 |
| 1975 | 68 | 57.3 |
| 1976 | 41 | 57.3 |
| 1977 | 45 | 57.3 |
| 1978 | 87 | 57.3 |
| 1979 | 52 | 57.3 |
| 1980 | 33 | 49.1 |
| 1981 | 63 | 49.1 |
| 1982 | 51 | 49.1 |
| 1983 | 49 | 49.1 |
| 1984 | 58 | 49.1 |
| 1985 | 61 | 49.1 |
| 1986 | 50 | 49.1 |
| 1987 | 43 | 49.1 |
| 1988 | 48 | 49.1 |
| 1989 | 35 | 49.1 |
| 1990 | 75 | 57.4 |
| 1991 | 40 | 57.4 |
| 1992 | 48 | 57.4 |
| 1993 | 37 | 57.4 |
| 1994 | 80 | 57.4 |
| 1995 | 65 | 57.4 |
| 1996 | 50 | 57.4 |
| 1997 | 72 | 57.4 |
| 1998 | 62 | 57.4 |
| 1999 | 45 | 57.4 |
| 2000 | 79 | 64.3 |
| 2001 | 58 | 64.3 |
| 2002 | 68 | 64.3 |
| 2003 | 47 | 64.3 |
| 2004 | 69 | 64.3 |
| 2005 | 70 | 64.3 |
| 2006 | 71 | 64.3 |
| 2007 | 62 | 64.3 |
| 2008 | 55 | 64.3 |
| 2009 | 64 | 64.3 |
| 2010 | 70 | 58.3 |
| 2011 | 62 | 58.3 |
| 2012 | 62 | 58.3 |
| 2014 | 39 | 58.3 |
| 2020 | 73 | 84.3 |
| 2021 | 106 | 84.3 |
| 2022 | 102 | 84.3 |
| 2023 | 93 | 84.3 |
| 2024 | 107 | 84.3 |
| 2025 | 82 | 84.3 |
| 2026 | 27 | 84.3 |
| Year | First date | Last date |
|---|---|---|
| 1953 | 1953-04-26 | 1953-09-26 |
| 1954 | 1954-06-04 | 1954-09-16 |
| 1955 | 1955-04-12 | 1955-09-22 |
| 1956 | 1956-06-03 | 1956-09-11 |
| 1957 | 1957-05-20 | 1957-08-30 |
| 1958 | 1958-05-25 | 1958-09-14 |
| 1959 | 1959-05-02 | 1959-08-31 |
| 1960 | 1960-05-02 | 1960-09-24 |
| 1961 | 1961-05-07 | 1961-09-13 |
| 1962 | 1962-05-20 | 1962-09-11 |
| 1963 | 1963-04-16 | 1963-09-03 |
| 1964 | 1964-04-17 | 1964-10-04 |
| 1965 | 1965-05-19 | 1965-08-28 |
| 1966 | 1966-05-08 | 1966-09-03 |
| 1967 | 1967-04-29 | 1967-09-09 |
| 1968 | 1968-05-31 | 1968-09-08 |
| 1969 | 1969-05-08 | 1969-09-23 |
| 1970 | 1970-06-12 | 1970-09-16 |
| 1971 | 1971-05-09 | 1971-09-03 |
| 1972 | 1972-04-17 | 1972-09-02 |
| 1973 | 1973-06-08 | 1973-10-04 |
| 1974 | 1974-05-23 | 1974-09-28 |
| 1975 | 1975-05-29 | 1975-09-19 |
| 1976 | 1976-05-31 | 1976-08-29 |
| 1977 | 1977-06-03 | 1977-09-06 |
| 1978 | 1978-04-14 | 1978-09-17 |
| 1979 | 1979-05-30 | 1979-09-21 |
| 1980 | 1980-05-23 | 1980-09-15 |
| 1981 | 1981-05-08 | 1981-08-31 |
| 1982 | 1982-05-09 | 1982-09-02 |
| 1983 | 1983-05-08 | 1983-09-08 |
| 1984 | 1984-05-09 | 1984-09-08 |
| 1985 | 1985-05-12 | 1985-10-09 |
| 1986 | 1986-04-24 | 1986-09-03 |
| 1987 | 1987-05-23 | 1987-10-05 |
| 1988 | 1988-05-17 | 1988-08-25 |
| 1989 | 1989-06-01 | 1989-09-24 |
| 1990 | 1990-05-08 | 1990-09-10 |
| 1991 | 1991-05-24 | 1991-09-03 |
| 1992 | 1992-05-06 | 1992-09-05 |
| 1993 | 1993-04-23 | 1993-09-16 |
| 1994 | 1994-04-30 | 1994-10-15 |
| 1995 | 1995-05-08 | 1995-09-07 |
| 1996 | 1996-05-20 | 1996-09-02 |
| 1997 | 1997-05-04 | 1997-10-20 |
| 1998 | 1998-04-19 | 1998-09-14 |
| 1999 | 1999-05-14 | 1999-09-28 |
| 2000 | 2000-05-04 | 2000-09-19 |
| 2001 | 2001-05-16 | 2001-08-26 |
| 2002 | 2002-05-25 | 2002-10-05 |
| 2003 | 2003-06-01 | 2003-09-18 |
| 2004 | 2004-04-20 | 2004-09-17 |
| 2005 | 2005-04-28 | 2005-09-30 |
| 2006 | 2006-05-20 | 2006-08-31 |
| 2007 | 2007-05-08 | 2007-10-04 |
| 2008 | 2008-05-03 | 2008-09-22 |
| 2009 | 2009-05-08 | 2009-09-06 |
| 2010 | 2010-05-03 | 2010-09-21 |
| 2011 | 2011-04-29 | 2011-09-16 |
| 2012 | 2012-05-07 | 2012-09-02 |
| 2014 | 2014-05-21 | 2014-08-26 |
| 2020 | 2020-04-30 | 2020-09-10 |
| 2021 | 2021-05-09 | 2021-10-10 |
| 2022 | 2022-04-11 | 2022-10-03 |
| 2023 | 2023-04-18 | 2023-09-19 |
| 2024 | 2024-05-18 | 2024-09-30 |
| 2025 | 2025-03-26 | 2025-10-10 |
| 2026 | 2026-05-31 | 2026-08-30 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 68 | 107 | 2024 | 27 |
| 35 C (95 F): Days | 61 | 40 | 2022 | 1 |
| 90 F (32.2 C): Days | 68 | 78 | 2022 | 9 |
| 100 F (37.8 C): Days | 10 | 8 | 2022 | 6 |
| 0 C (32 F): Ice days (max | 58 | 11 | 1969 | 2 |
| 0 C (32 F): Frost days (min | 67 | 86 | 1967 | 23 |
| -10 C (14 F): Days with min | 8 | 4 | 1955 | 2 |
| 20 C (68 F): Tropical nights (min | 67 | 119 | 2025 | 71 |
| 25 C (77 F): Days with min | 67 | 68 | 2025 | 23 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 66 | 46 | 1991 | 11 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 66 | 24 | 1991 | 5 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 64 | 13 | 1991 | 2 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 33 | 3 | 1960 | 1 |
| 200 mm (7.87 in): Days with 200 mm or more rain | 3 | 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 1953.
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 (2026-10-12).