Cynthiana Threshold Days by Year (USC00151998)
19 fixed thresholds counted per year at Cynthiana (USC00151998): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Cynthiana Thresholds
- Cynthiana: days with 10 mm (0.39 in) or more of precipitation in 98 years, most in 2011 with 60.
- Cynthiana: days with 25 mm (0.98 in) or more of precipitation in 98 years, most in 2019 with 22.
- Cynthiana: days with 50 mm (1.97 in) or more of precipitation in 84 years, most in 2018 with 7.
- Cynthiana: days with a maximum temperature at or above 30 C (86 F) in 43 years, most in 1999 with 94.
- 19 fixed thresholds have at least one qualifying day at Cynthiana.
Days at or above 30 C (86 F)
43 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1980 | 74 | 69.3 |
| 1981 | 59 | 69.3 |
| 1982 | 54 | 69.3 |
| 1983 | 85 | 69.3 |
| 1984 | 84 | 69.3 |
| 1985 | 54 | 69.3 |
| 1986 | 83 | 69.3 |
| 1987 | 85 | 69.3 |
| 1988 | 67 | 69.3 |
| 1989 | 48 | 69.3 |
| 1990 | 42 | 58.2 |
| 1991 | 69 | 58.2 |
| 1992 | 20 | 58.2 |
| 1993 | 68 | 58.2 |
| 1994 | 50 | 58.2 |
| 1995 | 62 | 58.2 |
| 1996 | 50 | 58.2 |
| 1997 | 48 | 58.2 |
| 1998 | 79 | 58.2 |
| 1999 | 94 | 58.2 |
| 2000 | 43 | 56.9 |
| 2001 | 61 | 56.9 |
| 2002 | 80 | 56.9 |
| 2003 | 37 | 56.9 |
| 2004 | 38 | 56.9 |
| 2005 | 87 | 56.9 |
| 2006 | 52 | 56.9 |
| 2011 | 70 | 67.1 |
| 2012 | 72 | 67.1 |
| 2013 | 51 | 67.1 |
| 2014 | 49 | 67.1 |
| 2015 | 69 | 67.1 |
| 2016 | 82 | 67.1 |
| 2017 | 53 | 67.1 |
| 2018 | 74 | 67.1 |
| 2019 | 84 | 67.1 |
| 2020 | 60 | 63.7 |
| 2021 | 54 | 63.7 |
| 2022 | 60 | 63.7 |
| 2023 | 41 | 63.7 |
| 2024 | 79 | 63.7 |
| 2025 | 82 | 63.7 |
| 2026 | 70 | 63.7 |
| Year | First date | Last date |
|---|---|---|
| 1980 | 1980-05-29 | 1980-10-11 |
| 1981 | 1981-06-06 | 1981-10-01 |
| 1982 | 1982-05-07 | 1982-10-08 |
| 1983 | 1983-06-10 | 1983-10-04 |
| 1984 | 1984-05-23 | 1984-09-26 |
| 1985 | 1985-04-22 | 1985-10-14 |
| 1986 | 1986-04-26 | 1986-10-05 |
| 1987 | 1987-04-22 | 1987-09-16 |
| 1988 | 1988-05-16 | 1988-09-14 |
| 1989 | 1989-05-26 | 1989-09-24 |
| 1990 | 1990-06-09 | 1990-09-08 |
| 1991 | 1991-05-16 | 1991-09-17 |
| 1992 | 1992-06-17 | 1992-09-10 |
| 1993 | 1993-05-09 | 1993-09-15 |
| 1994 | 1994-05-24 | 1994-10-02 |
| 1995 | 1995-05-29 | 1995-09-18 |
| 1996 | 1996-05-19 | 1996-09-12 |
| 1997 | 1997-06-20 | 1997-09-20 |
| 1998 | 1998-05-14 | 1998-10-01 |
| 1999 | 1999-05-11 | 1999-09-28 |
| 2000 | 2000-05-11 | 2000-09-02 |
| 2001 | 2001-05-03 | 2001-09-12 |
| 2002 | 2002-04-18 | 2002-10-03 |
| 2003 | 2003-06-22 | 2003-09-01 |
| 2004 | 2004-05-09 | 2004-09-22 |
| 2005 | 2005-05-11 | 2005-10-06 |
| 2006 | 2006-04-15 | 2006-08-30 |
| 2011 | 2011-05-12 | 2011-09-14 |
| 2012 | 2012-05-03 | 2012-09-08 |
| 2013 | 2013-05-16 | 2013-09-23 |
| 2014 | 2014-05-13 | 2014-10-03 |
| 2015 | 2015-05-07 | 2015-09-20 |
| 2016 | 2016-05-28 | 2016-09-26 |
| 2017 | 2017-05-17 | 2017-09-29 |
| 2018 | 2018-05-11 | 2018-10-09 |
| 2019 | 2019-05-18 | 2019-10-04 |
| 2020 | 2020-05-25 | 2020-09-13 |
| 2021 | 2021-05-23 | 2021-09-20 |
| 2022 | 2022-05-12 | 2022-09-22 |
| 2023 | 2023-06-01 | 2023-10-05 |
| 2024 | 2024-05-03 | 2024-10-07 |
| 2025 | 2025-06-04 | 2025-09-30 |
| 2026 | 2026-05-18 | 2026-10-14 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 43 | 94 | 1999 | 70 |
| 35 C (95 F): Days | 31 | 34 | 1983 | 5 |
| 40 C (104 F): Days | 2 | 3 | 1983 | 2 |
| 90 F (32.2 C): Days | 43 | 68 | 1999 | 36 |
| 100 F (37.8 C): Days | 6 | 10 | 1983 | 9 |
| 0 C (32 F): Ice days (max | 43 | 33 | 1985 | 22 |
| 0 C (32 F): Frost days (min | 38 | 135 | 1981 | 66 |
| -10 C (14 F): Days with min | 37 | 34 | 2014 | 16 |
| -20 C (-4 F): Days with min | 12 | 10 | 1980 | 2 |
| -30 C (-22 F): Days with min | 3 | 3 | 2015 | 3 |
| 20 C (68 F): Tropical nights (min | 38 | 48 | 2016 | 50 |
| 25 C (77 F): Days with min | 1 | 1 | 1997 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 98 | 60 | 2011 | 27 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 98 | 22 | 2019 | 8 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 84 | 7 | 2018 | 2 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 5 | 1 | 1950 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 38 | 3 | 1960 | 1 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 3 | 1 | 1950 | 1 |
| 50 cm (19.7 in): Days with 50 cm or more snowfall | 1 | 1 | 1994 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1980.
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 (2026-10-17).