Boonville 4 SSW Threshold Days by Year (USC00300785)
15 fixed thresholds counted per year at Boonville 4 SSW (USC00300785): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Boonville 4 SSW Thresholds
- Boonville 4 SSW: days with 10 mm (0.39 in) or more of precipitation in 77 years, most in 1976 with 70.
- Boonville 4 SSW: days with 25 mm (0.98 in) or more of precipitation in 77 years, most in 1959 with 21.
- Boonville 4 SSW: days with 10 cm (3.9 in) or more of snowfall in 77 years, most in 1976 with 34.
- Boonville 4 SSW: days with a maximum temperature at or below 0 C (32 F) in 75 years, most in 1955 with 100.
- 15 fixed thresholds have at least one qualifying day at Boonville 4 SSW.
Days at or above 30 C (86 F)
47 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1952 | 7 | 6.5 |
| 1953 | 13 | 6.5 |
| 1955 | 14 | 6.5 |
| 1956 | 1 | 6.5 |
| 1957 | 1 | 6.5 |
| 1959 | 3 | 6.5 |
| 1962 | 1 | 2.8 |
| 1963 | 6 | 2.8 |
| 1964 | 4 | 2.8 |
| 1966 | 2 | 2.8 |
| 1969 | 1 | 2.8 |
| 1971 | 1 | 7 |
| 1973 | 7 | 7 |
| 1974 | 1 | 7 |
| 1975 | 11 | 7 |
| 1977 | 4 | 7 |
| 1978 | 11 | 7 |
| 1979 | 14 | 7 |
| 1980 | 4 | 4.4 |
| 1981 | 1 | 4.4 |
| 1982 | 1 | 4.4 |
| 1987 | 4 | 4.4 |
| 1988 | 12 | 4.4 |
| 1991 | 2 | 3.2 |
| 1993 | 1 | 3.2 |
| 1994 | 4 | 3.2 |
| 1995 | 4 | 3.2 |
| 1999 | 5 | 3.2 |
| 2001 | 4 | 3.3 |
| 2002 | 6 | 3.3 |
| 2006 | 4 | 3.3 |
| 2007 | 3 | 3.3 |
| 2008 | 1 | 3.3 |
| 2009 | 2 | 3.3 |
| 2010 | 5 | 3.3 |
| 2011 | 2 | 3.3 |
| 2012 | 4 | 3.3 |
| 2013 | 3 | 3.3 |
| 2016 | 3 | 3.3 |
| 2017 | 1 | 3.3 |
| 2018 | 5 | 3.3 |
| 2020 | 4 | 3.3 |
| 2021 | 1 | 3.3 |
| 2022 | 1 | 3.3 |
| 2023 | 3 | 3.3 |
| 2025 | 8 | 3.3 |
| 2026 | 3 | 3.3 |
| Year | First date | Last date |
|---|---|---|
| 1952 | 1952-06-26 | 1952-09-13 |
| 1953 | 1953-06-20 | 1953-09-04 |
| 1955 | 1955-07-04 | 1955-08-22 |
| 1956 | 1956-06-14 | 1956-06-14 |
| 1957 | 1957-06-18 | 1957-06-18 |
| 1959 | 1959-07-29 | 1959-09-09 |
| 1962 | 1962-07-08 | 1962-07-08 |
| 1963 | 1963-06-27 | 1963-07-28 |
| 1964 | 1964-06-30 | 1964-07-28 |
| 1966 | 1966-07-02 | 1966-07-03 |
| 1969 | 1969-06-27 | 1969-06-27 |
| 1971 | 1971-06-30 | 1971-06-30 |
| 1973 | 1973-08-09 | 1973-09-05 |
| 1974 | 1974-06-10 | 1974-06-10 |
| 1975 | 1975-05-23 | 1975-08-25 |
| 1977 | 1977-05-22 | 1977-08-29 |
| 1978 | 1978-05-28 | 1978-08-16 |
| 1979 | 1979-06-18 | 1979-08-05 |
| 1980 | 1980-06-26 | 1980-08-31 |
| 1981 | 1981-06-17 | 1981-06-17 |
| 1982 | 1982-07-19 | 1982-07-19 |
| 1987 | 1987-07-13 | 1987-08-18 |
| 1988 | 1988-06-15 | 1988-08-15 |
| 1991 | 1991-07-20 | 1991-07-21 |
| 1993 | 1993-07-07 | 1993-07-07 |
| 1994 | 1994-06-16 | 1994-06-19 |
| 1995 | 1995-07-30 | 1995-08-19 |
| 1999 | 1999-06-28 | 1999-09-05 |
| 2001 | 2001-06-15 | 2001-08-10 |
| 2002 | 2002-07-03 | 2002-08-15 |
| 2006 | 2006-05-31 | 2006-08-03 |
| 2007 | 2007-06-28 | 2007-09-08 |
| 2008 | 2008-06-10 | 2008-06-10 |
| 2009 | 2009-04-28 | 2009-05-22 |
| 2010 | 2010-05-27 | 2010-07-09 |
| 2011 | 2011-06-09 | 2011-07-22 |
| 2012 | 2012-06-21 | 2012-08-05 |
| 2013 | 2013-07-18 | 2013-07-20 |
| 2016 | 2016-05-29 | 2016-08-14 |
| 2017 | 2017-09-26 | 2017-09-26 |
| 2018 | 2018-07-01 | 2018-07-17 |
| 2020 | 2020-05-27 | 2020-08-24 |
| 2021 | 2021-05-22 | 2021-05-22 |
| 2022 | 2022-05-22 | 2022-05-22 |
| 2023 | 2023-06-02 | 2023-09-06 |
| 2025 | 2025-06-24 | 2025-08-17 |
| 2026 | 2026-07-02 | 2026-07-15 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 47 | 14 | 1955 | 3 |
| 90 F (32.2 C): Days | 10 | 7 | 1979 | 1 |
| 0 C (32 F): Ice days (max | 75 | 100 | 1955 | 61 |
| 0 C (32 F): Frost days (min | 75 | 199 | 1972 | 112 |
| -10 C (14 F): Days with min | 75 | 94 | 1978 | 50 |
| -20 C (-4 F): Days with min | 74 | 34 | 1994 | 12 |
| -30 C (-22 F): Days with min | 20 | 6 | 2004 | 2 |
| 20 C (68 F): Tropical nights (min | 43 | 11 | 1955 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 77 | 70 | 1976 | 34 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 77 | 21 | 1959 | 9 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 60 | 5 | 1959 | 3 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 6 | 2 | 2010 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 77 | 34 | 1976 | 5 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 67 | 11 | 1978 | 5 |
| 50 cm (19.7 in): Days with 50 cm or more snowfall | 16 | 3 | 1972 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1952.
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).