Roscoe Threshold Days by Year (USC00397277)
18 fixed thresholds counted per year at Roscoe (USC00397277): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Roscoe Thresholds
- Roscoe: days with 10 mm (0.39 in) or more of precipitation in 72 years, most in 1968 with 26.
- Roscoe: days with 25 mm (0.98 in) or more of precipitation in 66 years, most in 1968 with 8.
- Roscoe: days with 10 cm (3.9 in) or more of snowfall in 66 years, most in 2019 with 10.
- Roscoe: days with a maximum temperature at or above 30 C (86 F) in 56 years, most in 1959 with 74.
- 18 fixed thresholds have at least one qualifying day at Roscoe.
Days at or above 30 C (86 F)
56 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1949 | 62 | 62 |
| 1950 | 33 | 44 |
| 1951 | 19 | 44 |
| 1952 | 64 | 44 |
| 1953 | 36 | 44 |
| 1954 | 38 | 44 |
| 1955 | 61 | 44 |
| 1956 | 35 | 44 |
| 1957 | 34 | 44 |
| 1958 | 46 | 44 |
| 1959 | 74 | 44 |
| 1960 | 41 | 37.1 |
| 1961 | 58 | 37.1 |
| 1962 | 28 | 37.1 |
| 1963 | 31 | 37.1 |
| 1964 | 35 | 37.1 |
| 1965 | 25 | 37.1 |
| 1966 | 46 | 37.1 |
| 1967 | 41 | 37.1 |
| 1968 | 32 | 37.1 |
| 1969 | 34 | 37.1 |
| 1970 | 55 | 44 |
| 1971 | 33 | 44 |
| 1990 | 38 | 23.8 |
| 1991 | 31 | 23.8 |
| 1992 | 17 | 23.8 |
| 1993 | 7 | 23.8 |
| 1994 | 14 | 23.8 |
| 1995 | 28 | 23.8 |
| 1996 | 23 | 23.8 |
| 1997 | 29 | 23.8 |
| 1998 | 26 | 23.8 |
| 1999 | 25 | 23.8 |
| 2000 | 28 | 36.1 |
| 2001 | 43 | 36.1 |
| 2002 | 48 | 36.1 |
| 2003 | 39 | 36.1 |
| 2004 | 20 | 36.1 |
| 2005 | 41 | 36.1 |
| 2006 | 60 | 36.1 |
| 2007 | 43 | 36.1 |
| 2008 | 22 | 36.1 |
| 2009 | 17 | 36.1 |
| 2010 | 36 | 32.7 |
| 2011 | 28 | 32.7 |
| 2012 | 52 | 32.7 |
| 2013 | 31 | 32.7 |
| 2014 | 13 | 32.7 |
| 2015 | 41 | 32.7 |
| 2016 | 31 | 32.7 |
| 2017 | 27 | 32.7 |
| 2018 | 45 | 32.7 |
| 2019 | 23 | 32.7 |
| 2020 | 37 | 42.3 |
| 2021 | 56 | 42.3 |
| 2022 | 34 | 42.3 |
| Year | First date | Last date |
|---|---|---|
| 1949 | 1949-05-12 | 1949-10-05 |
| 1950 | 1950-05-22 | 1950-10-30 |
| 1951 | 1951-07-14 | 1951-10-01 |
| 1952 | 1952-04-26 | 1952-09-29 |
| 1953 | 1953-05-29 | 1953-10-01 |
| 1954 | 1954-05-22 | 1954-09-26 |
| 1955 | 1955-05-02 | 1955-10-10 |
| 1956 | 1956-05-21 | 1956-10-16 |
| 1957 | 1957-05-07 | 1957-08-31 |
| 1958 | 1958-04-16 | 1958-10-19 |
| 1959 | 1959-04-30 | 1959-09-14 |
| 1960 | 1960-05-13 | 1960-10-08 |
| 1961 | 1961-05-31 | 1961-10-05 |
| 1962 | 1962-04-24 | 1962-10-14 |
| 1963 | 1963-05-07 | 1963-10-05 |
| 1964 | 1964-05-20 | 1964-10-15 |
| 1965 | 1965-04-29 | 1965-08-24 |
| 1966 | 1966-05-04 | 1966-10-07 |
| 1967 | 1967-05-22 | 1967-09-25 |
| 1968 | 1968-04-30 | 1968-09-14 |
| 1969 | 1969-05-14 | 1969-09-14 |
| 1970 | 1970-05-17 | 1970-10-05 |
| 1971 | 1971-06-23 | 1971-09-14 |
| 1990 | 1990-04-23 | 1990-10-06 |
| 1991 | 1991-05-15 | 1991-10-17 |
| 1992 | 1992-05-01 | 1992-10-03 |
| 1993 | 1993-07-31 | 1993-10-07 |
| 1994 | 1994-05-18 | 1994-09-11 |
| 1995 | 1995-06-15 | 1995-09-16 |
| 1996 | 1996-06-11 | 1996-09-06 |
| 1997 | 1997-05-18 | 1997-10-03 |
| 1998 | 1998-05-15 | 1998-09-19 |
| 1999 | 1999-06-25 | 1999-09-01 |
| 2000 | 2000-05-05 | 2000-09-19 |
| 2001 | 2001-04-29 | 2001-09-07 |
| 2002 | 2002-05-29 | 2002-09-18 |
| 2003 | 2003-04-14 | 2003-10-20 |
| 2004 | 2004-04-29 | 2004-09-20 |
| 2005 | 2005-05-21 | 2005-10-02 |
| 2006 | 2006-05-19 | 2006-10-08 |
| 2007 | 2007-05-14 | 2007-09-30 |
| 2008 | 2008-04-16 | 2008-09-17 |
| 2009 | 2009-04-24 | 2009-08-25 |
| 2010 | 2010-05-29 | 2010-08-31 |
| 2011 | 2011-06-07 | 2011-09-29 |
| 2012 | 2012-04-25 | 2012-09-11 |
| 2013 | 2013-05-14 | 2013-09-23 |
| 2014 | 2014-05-23 | 2014-09-27 |
| 2015 | 2015-05-03 | 2015-10-12 |
| 2016 | 2016-05-07 | 2016-09-12 |
| 2017 | 2017-06-02 | 2017-09-14 |
| 2018 | 2018-05-17 | 2018-09-17 |
| 2019 | 2019-05-31 | 2019-09-17 |
| 2020 | 2020-06-02 | 2020-09-03 |
| 2021 | 2021-06-03 | 2021-09-29 |
| 2022 | 2022-06-12 | 2022-09-20 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 56 | 74 | 1959 | 34 |
| 35 C (95 F): Days | 51 | 26 | 1959 | 5 |
| 40 C (104 F): Days | 14 | 3 | 1949 | 1 |
| 90 F (32.2 C): Days | 56 | 54 | 1959 | 13 |
| 100 F (37.8 C): Days | 33 | 10 | 1959 | 2 |
| 110 F (43.3 C): Days | 1 | 1 | 2006 | 1 |
| 0 C (32 F): Ice days (max | 56 | 115 | 1996 | 85 |
| 0 C (32 F): Frost days (min | 56 | 204 | 2002 | 194 |
| -10 C (14 F): Days with min | 56 | 120 | 1950 | 105 |
| -20 C (-4 F): Days with min | 56 | 53 | 1950 | 41 |
| -30 C (-22 F): Days with min | 40 | 10 | 1996 | 2 |
| 20 C (68 F): Tropical nights (min | 44 | 9 | 1955 | 4 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 72 | 26 | 1968 | 12 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 66 | 8 | 1968 | 1 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 27 | 3 | 1995 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 2 | 1 | 1964 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 66 | 10 | 2019 | 3 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 11 | 1 | 1937 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1949.
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).