Ona II Threshold Days by Year (NOE00109737)
6 fixed thresholds counted per year at Ona II (NOE00109737): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Ona II Thresholds
- Ona II: nights with a minimum temperature at or below 0 C (32 F) in 46 years, most in 1981 with 85.
- Ona II: days with a maximum temperature at or below 0 C (32 F) in 39 years, most in 2010 with 29.
- Ona II: days with 10 mm (0.39 in) or more of precipitation in 37 years, most in 1989 with 61.
- Ona II: days with 25 mm (0.98 in) or more of precipitation in 36 years, most in 1989 with 16.
- 6 fixed thresholds have at least one qualifying day at Ona II.
Nights at or below 0 C (32 F)
46 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1979 | 51 | 51 |
| 1980 | 51 | 46 |
| 1981 | 85 | 46 |
| 1982 | 23 | 46 |
| 1983 | 39 | 46 |
| 1984 | 26 | 46 |
| 1985 | 65 | 46 |
| 1986 | 58 | 46 |
| 1987 | 50 | 46 |
| 1988 | 47 | 46 |
| 1989 | 16 | 46 |
| 1990 | 15 | 32.1 |
| 1991 | 21 | 32.1 |
| 1992 | 21 | 32.1 |
| 1993 | 32 | 32.1 |
| 1994 | 46 | 32.1 |
| 1995 | 40 | 32.1 |
| 1996 | 48 | 32.1 |
| 1997 | 35 | 32.1 |
| 1998 | 31 | 32.1 |
| 1999 | 32 | 32.1 |
| 2000 | 29 | 23.9 |
| 2003 | 22 | 23.9 |
| 2004 | 26 | 23.9 |
| 2005 | 18 | 23.9 |
| 2006 | 23 | 23.9 |
| 2007 | 26 | 23.9 |
| 2008 | 17 | 23.9 |
| 2009 | 30 | 23.9 |
| 2010 | 74 | 28.4 |
| 2011 | 26 | 28.4 |
| 2012 | 27 | 28.4 |
| 2013 | 52 | 28.4 |
| 2014 | 13 | 28.4 |
| 2015 | 6 | 28.4 |
| 2016 | 22 | 28.4 |
| 2017 | 17 | 28.4 |
| 2018 | 22 | 28.4 |
| 2019 | 25 | 28.4 |
| 2020 | 9 | 24.9 |
| 2021 | 40 | 24.9 |
| 2022 | 29 | 24.9 |
| 2023 | 33 | 24.9 |
| 2024 | 27 | 24.9 |
| 2025 | 11 | 24.9 |
| 2026 | 25 | 24.9 |
| Year | First date | Last date |
|---|---|---|
| 1979 | 1979-01-01 | 1979-12-31 |
| 1980 | 1980-01-01 | 1980-12-16 |
| 1981 | 1981-01-01 | 1981-12-30 |
| 1982 | 1982-01-02 | 1982-12-18 |
| 1983 | 1983-01-07 | 1983-12-24 |
| 1984 | 1984-01-08 | 1984-12-18 |
| 1985 | 1985-01-04 | 1985-12-31 |
| 1986 | 1986-01-01 | 1986-12-29 |
| 1987 | 1987-01-01 | 1987-12-17 |
| 1988 | 1988-01-24 | 1988-12-20 |
| 1989 | 1989-01-22 | 1989-12-17 |
| 1990 | 1990-03-01 | 1990-12-20 |
| 1991 | 1991-02-03 | 1991-12-25 |
| 1992 | 1992-02-04 | 1992-10-17 |
| 1993 | 1993-01-23 | 1993-12-28 |
| 1994 | 1994-01-04 | 1994-03-21 |
| 1995 | 1995-01-02 | 1995-12-31 |
| 1996 | 1996-01-01 | 1996-12-31 |
| 1997 | 1997-01-10 | 1997-12-30 |
| 1998 | 1998-01-18 | 1998-12-22 |
| 1999 | 1999-01-08 | 1999-12-18 |
| 2000 | 2000-01-21 | 2000-04-05 |
| 2003 | 2003-01-01 | 2003-12-29 |
| 2004 | 2004-01-16 | 2004-12-26 |
| 2005 | 2005-01-23 | 2005-12-30 |
| 2006 | 2006-02-25 | 2006-03-25 |
| 2007 | 2007-01-10 | 2007-04-20 |
| 2008 | 2008-02-02 | 2008-11-21 |
| 2009 | 2009-01-01 | 2009-12-30 |
| 2010 | 2010-01-01 | 2010-12-29 |
| 2011 | 2011-01-03 | 2011-03-30 |
| 2012 | 2012-02-01 | 2012-12-28 |
| 2013 | 2013-01-11 | 2013-12-09 |
| 2014 | 2014-01-10 | 2014-12-27 |
| 2015 | 2015-02-07 | 2015-12-27 |
| 2016 | 2016-01-04 | 2016-11-08 |
| 2017 | 2017-01-04 | 2017-12-29 |
| 2018 | 2018-01-06 | 2018-04-03 |
| 2019 | 2019-01-13 | 2019-11-12 |
| 2020 | 2020-03-13 | 2020-11-19 |
| 2021 | 2021-01-10 | 2021-12-25 |
| 2022 | 2022-01-06 | 2022-12-25 |
| 2023 | 2023-01-01 | 2023-12-28 |
| 2024 | 2024-01-03 | 2024-12-31 |
| 2025 | 2025-01-01 | 2025-02-16 |
| 2026 | 2026-01-02 | 2026-02-19 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 0 C (32 F): Ice days (max | 39 | 29 | 2010 | 5 |
| 0 C (32 F): Frost days (min | 46 | 85 | 1981 | 25 |
| -10 C (14 F): Days with min | 1 | 1 | 1982 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 37 | 61 | 1989 | 14 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 36 | 16 | 1989 | 4 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 12 | 2 | 1983 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1979.
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).