Riverton (Leeward) Threshold Days by Year
3 fixed thresholds counted per year at Riverton (Leeward) (ASN00023355): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Riverton (Leeward) Thresholds
- Riverton (Leeward): days with 10 mm (0.39 in) or more of precipitation in 58 years, most in 1992 with 32.
- Riverton (Leeward): days with 25 mm (0.98 in) or more of precipitation in 48 years, most in 1973 with 8.
- Riverton (Leeward): days with 50 mm (1.97 in) or more of precipitation in 11 years, most in 1969 with 1.
- 3 fixed thresholds have at least one qualifying day at Riverton (Leeward).
Days with 10 mm (0.39 in) or more of precipitation
58 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1969 | 16 | 16 |
| 1970 | 12 | 14.7 |
| 1971 | 18 | 14.7 |
| 1972 | 12 | 14.7 |
| 1973 | 19 | 14.7 |
| 1974 | 17 | 14.7 |
| 1975 | 14 | 14.7 |
| 1976 | 9 | 14.7 |
| 1977 | 9 | 14.7 |
| 1978 | 22 | 14.7 |
| 1979 | 15 | 14.7 |
| 1980 | 15 | 13.7 |
| 1981 | 12 | 13.7 |
| 1982 | 7 | 13.7 |
| 1983 | 14 | 13.7 |
| 1984 | 14 | 13.7 |
| 1985 | 15 | 13.7 |
| 1986 | 16 | 13.7 |
| 1987 | 18 | 13.7 |
| 1988 | 14 | 13.7 |
| 1989 | 12 | 13.7 |
| 1990 | 10 | 15 |
| 1991 | 14 | 15 |
| 1992 | 32 | 15 |
| 1993 | 8 | 15 |
| 1994 | 10 | 15 |
| 1995 | 15 | 15 |
| 1996 | 14 | 15 |
| 1997 | 14 | 15 |
| 1998 | 17 | 15 |
| 1999 | 16 | 15 |
| 2000 | 21 | 15.1 |
| 2001 | 22 | 15.1 |
| 2002 | 9 | 15.1 |
| 2003 | 17 | 15.1 |
| 2004 | 16 | 15.1 |
| 2005 | 19 | 15.1 |
| 2006 | 7 | 15.1 |
| 2007 | 12 | 15.1 |
| 2008 | 8 | 15.1 |
| 2009 | 20 | 15.1 |
| 2010 | 22 | 12.3 |
| 2011 | 12 | 12.3 |
| 2012 | 10 | 12.3 |
| 2013 | 11 | 12.3 |
| 2014 | 15 | 12.3 |
| 2015 | 10 | 12.3 |
| 2016 | 19 | 12.3 |
| 2017 | 12 | 12.3 |
| 2018 | 7 | 12.3 |
| 2019 | 5 | 12.3 |
| 2020 | 14 | 12.3 |
| 2021 | 11 | 12.3 |
| 2022 | 20 | 12.3 |
| 2023 | 9 | 12.3 |
| 2024 | 5 | 12.3 |
| 2025 | 14 | 12.3 |
| 2026 | 13 | 12.3 |
| Year | First date | Last date |
|---|---|---|
| 1969 | 1969-01-14 | 1969-12-01 |
| 1970 | 1970-01-01 | 1970-12-11 |
| 1971 | 1971-03-15 | 1971-11-25 |
| 1972 | 1972-01-07 | 1972-08-29 |
| 1973 | 1973-02-04 | 1973-12-30 |
| 1974 | 1974-01-28 | 1974-10-24 |
| 1975 | 1975-03-20 | 1975-10-31 |
| 1976 | 1976-02-18 | 1976-11-02 |
| 1977 | 1977-03-26 | 1977-12-02 |
| 1978 | 1978-04-10 | 1978-11-19 |
| 1979 | 1979-01-09 | 1979-12-31 |
| 1980 | 1980-04-14 | 1980-11-06 |
| 1981 | 1981-01-10 | 1981-11-10 |
| 1982 | 1982-04-25 | 1982-10-09 |
| 1983 | 1983-03-03 | 1983-11-26 |
| 1984 | 1984-01-01 | 1984-10-03 |
| 1985 | 1985-03-16 | 1985-12-10 |
| 1986 | 1986-04-16 | 1986-12-07 |
| 1987 | 1987-01-24 | 1987-12-01 |
| 1988 | 1988-02-06 | 1988-11-23 |
| 1989 | 1989-03-14 | 1989-12-02 |
| 1990 | 1990-05-17 | 1990-12-10 |
| 1991 | 1991-04-01 | 1991-11-04 |
| 1992 | 1992-03-01 | 1992-12-20 |
| 1993 | 1993-01-17 | 1993-12-12 |
| 1994 | 1994-06-05 | 1994-11-07 |
| 1995 | 1995-01-14 | 1995-11-05 |
| 1996 | 1996-01-01 | 1996-09-30 |
| 1997 | 1997-01-22 | 1997-11-14 |
| 1998 | 1998-01-14 | 1998-12-13 |
| 1999 | 1999-03-21 | 1999-12-03 |
| 2000 | 2000-02-20 | 2000-11-09 |
| 2001 | 2001-01-25 | 2001-11-23 |
| 2002 | 2002-01-22 | 2002-09-28 |
| 2003 | 2003-02-20 | 2003-12-20 |
| 2004 | 2004-06-19 | 2004-12-09 |
| 2005 | 2005-01-04 | 2005-12-02 |
| 2006 | 2006-02-25 | 2006-12-22 |
| 2007 | 2007-01-19 | 2007-12-22 |
| 2008 | 2008-04-27 | 2008-12-13 |
| 2009 | 2009-04-24 | 2009-12-08 |
| 2010 | 2010-04-07 | 2010-12-08 |
| 2011 | 2011-02-18 | 2011-12-18 |
| 2012 | 2012-01-08 | 2012-10-11 |
| 2013 | 2013-02-28 | 2013-12-04 |
| 2014 | 2014-02-14 | 2014-11-21 |
| 2015 | 2015-01-10 | 2015-09-03 |
| 2016 | 2016-01-30 | 2016-12-28 |
| 2017 | 2017-01-20 | 2017-12-02 |
| 2018 | 2018-01-30 | 2018-12-14 |
| 2019 | 2019-05-04 | 2019-09-21 |
| 2020 | 2020-02-01 | 2020-12-06 |
| 2021 | 2021-05-25 | 2021-11-24 |
| 2022 | 2022-01-23 | 2022-11-20 |
| 2023 | 2023-05-26 | 2023-12-11 |
| 2024 | 2024-06-26 | 2024-10-18 |
| 2025 | 2025-05-27 | 2025-11-29 |
| 2026 | 2026-03-01 | 2026-08-25 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 10 mm (0.39 in): Days with 10 mm or more rain | 58 | 32 | 1992 | 13 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 48 | 8 | 1973 | 2 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 11 | 1 | 1969 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1969.
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).