Pretty Rock Threshold Days by Year (USC00327311)
20 fixed thresholds counted per year at Pretty Rock (USC00327311): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Pretty Rock Thresholds
- Pretty Rock: days with 10 mm (0.39 in) or more of precipitation in 76 years, most in 1982 with 21.
- Pretty Rock: days with 25 mm (0.98 in) or more of precipitation in 73 years, most in 2013 with 9.
- Pretty Rock: days with 10 cm (3.9 in) or more of snowfall in 66 years, most in 1996 with 10.
- Pretty Rock: days with a maximum temperature at or above 30 C (86 F) in 60 years, most in 1988 with 67.
- 20 fixed thresholds have at least one qualifying day at Pretty Rock.
Days at or above 30 C (86 F)
60 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1966 | 45 | 38.5 |
| 1967 | 39 | 38.5 |
| 1968 | 30 | 38.5 |
| 1969 | 40 | 38.5 |
| 1970 | 60 | 39.3 |
| 1971 | 38 | 39.3 |
| 1972 | 33 | 39.3 |
| 1973 | 34 | 39.3 |
| 1975 | 36 | 39.3 |
| 1976 | 60 | 39.3 |
| 1977 | 31 | 39.3 |
| 1978 | 39 | 39.3 |
| 1979 | 23 | 39.3 |
| 1980 | 55 | 48.7 |
| 1981 | 44 | 48.7 |
| 1982 | 41 | 48.7 |
| 1983 | 58 | 48.7 |
| 1984 | 47 | 48.7 |
| 1985 | 39 | 48.7 |
| 1986 | 31 | 48.7 |
| 1987 | 46 | 48.7 |
| 1988 | 67 | 48.7 |
| 1989 | 59 | 48.7 |
| 1990 | 51 | 34.1 |
| 1991 | 40 | 34.1 |
| 1992 | 21 | 34.1 |
| 1993 | 11 | 34.1 |
| 1994 | 30 | 34.1 |
| 1995 | 40 | 34.1 |
| 1996 | 40 | 34.1 |
| 1997 | 33 | 34.1 |
| 1998 | 47 | 34.1 |
| 1999 | 28 | 34.1 |
| 2000 | 43 | 46.6 |
| 2001 | 49 | 46.6 |
| 2002 | 66 | 46.6 |
| 2003 | 56 | 46.6 |
| 2004 | 34 | 46.6 |
| 2005 | 43 | 46.6 |
| 2006 | 64 | 46.6 |
| 2007 | 49 | 46.6 |
| 2008 | 46 | 46.6 |
| 2009 | 16 | 46.6 |
| 2010 | 29 | 37.2 |
| 2011 | 33 | 37.2 |
| 2012 | 57 | 37.2 |
| 2013 | 29 | 37.2 |
| 2014 | 17 | 37.2 |
| 2015 | 42 | 37.2 |
| 2016 | 45 | 37.2 |
| 2017 | 54 | 37.2 |
| 2018 | 47 | 37.2 |
| 2019 | 19 | 37.2 |
| 2020 | 46 | 47.7 |
| 2021 | 61 | 47.7 |
| 2022 | 54 | 47.7 |
| 2023 | 35 | 47.7 |
| 2024 | 51 | 47.7 |
| 2025 | 40 | 47.7 |
| 2026 | 47 | 47.7 |
| Year | First date | Last date |
|---|---|---|
| 1966 | 1966-05-04 | 1966-09-12 |
| 1967 | 1967-05-22 | 1967-09-30 |
| 1968 | 1968-04-30 | 1968-09-15 |
| 1969 | 1969-05-14 | 1969-09-28 |
| 1970 | 1970-05-17 | 1970-10-05 |
| 1971 | 1971-07-02 | 1971-09-11 |
| 1972 | 1972-05-15 | 1972-09-19 |
| 1973 | 1973-06-13 | 1973-08-31 |
| 1975 | 1975-05-17 | 1975-09-17 |
| 1976 | 1976-06-02 | 1976-09-18 |
| 1977 | 1977-04-10 | 1977-09-06 |
| 1978 | 1978-06-23 | 1978-09-11 |
| 1979 | 1979-05-16 | 1979-09-26 |
| 1980 | 1980-04-20 | 1980-10-08 |
| 1981 | 1981-04-24 | 1981-09-18 |
| 1982 | 1982-05-03 | 1982-09-10 |
| 1983 | 1983-05-27 | 1983-09-27 |
| 1984 | 1984-05-16 | 1984-09-21 |
| 1985 | 1985-05-03 | 1985-09-15 |
| 1986 | 1986-05-04 | 1986-08-25 |
| 1987 | 1987-04-18 | 1987-10-03 |
| 1988 | 1988-05-26 | 1988-08-30 |
| 1989 | 1989-04-22 | 1989-09-30 |
| 1990 | 1990-04-22 | 1990-10-05 |
| 1991 | 1991-06-11 | 1991-10-16 |
| 1992 | 1992-04-30 | 1992-10-01 |
| 1993 | 1993-06-20 | 1993-10-06 |
| 1994 | 1994-05-17 | 1994-09-10 |
| 1995 | 1995-06-14 | 1995-09-15 |
| 1996 | 1996-06-09 | 1996-09-09 |
| 1997 | 1997-06-01 | 1997-10-02 |
| 1998 | 1998-05-17 | 1998-09-18 |
| 1999 | 1999-06-21 | 1999-09-22 |
| 2000 | 2000-06-07 | 2000-09-18 |
| 2001 | 2001-04-27 | 2001-09-06 |
| 2002 | 2002-05-28 | 2002-09-17 |
| 2003 | 2003-04-13 | 2003-10-19 |
| 2004 | 2004-06-04 | 2004-09-18 |
| 2005 | 2005-06-18 | 2005-10-01 |
| 2006 | 2006-05-18 | 2006-09-14 |
| 2007 | 2007-05-18 | 2007-09-29 |
| 2008 | 2008-06-24 | 2008-09-19 |
| 2009 | 2009-05-18 | 2009-09-18 |
| 2010 | 2010-05-28 | 2010-08-29 |
| 2011 | 2011-06-02 | 2011-10-04 |
| 2012 | 2012-04-24 | 2012-09-15 |
| 2013 | 2013-05-13 | 2013-09-22 |
| 2014 | 2014-05-23 | 2014-09-26 |
| 2015 | 2015-06-08 | 2015-10-11 |
| 2016 | 2016-05-05 | 2016-09-11 |
| 2017 | 2017-05-07 | 2017-09-11 |
| 2018 | 2018-05-26 | 2018-09-07 |
| 2019 | 2019-06-07 | 2019-09-16 |
| 2020 | 2020-06-01 | 2020-09-03 |
| 2021 | 2021-06-03 | 2021-10-05 |
| 2022 | 2022-06-18 | 2022-09-20 |
| 2023 | 2023-05-23 | 2023-09-18 |
| 2024 | 2024-06-15 | 2024-10-09 |
| 2025 | 2025-05-10 | 2025-10-03 |
| 2026 | 2026-05-25 | 2026-08-30 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 60 | 67 | 1988 | 47 |
| 35 C (95 F): Days | 55 | 32 | 1988 | 20 |
| 40 C (104 F): Days | 18 | 5 | 2006 | 5 |
| 90 F (32.2 C): Days | 60 | 56 | 1988 | 30 |
| 100 F (37.8 C): Days | 38 | 15 | 1988 | 14 |
| 110 F (43.3 C): Days | 2 | 1 | 2002 | 1 |
| 0 C (32 F): Ice days (max | 60 | 110 | 1978 | 30 |
| 0 C (32 F): Frost days (min | 60 | 203 | 1984 | 119 |
| -10 C (14 F): Days with min | 60 | 110 | 1978 | 35 |
| -20 C (-4 F): Days with min | 60 | 56 | 1978 | 14 |
| -30 C (-22 F): Days with min | 48 | 15 | 1996 | 4 |
| -40 C (-40 F): Days with min | 2 | 2 | 2025 | 2 |
| 20 C (68 F): Tropical nights (min | 45 | 9 | 2007 | 2 |
| 25 C (77 F): Days with min | 1 | 1 | 2002 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 76 | 21 | 1982 | 9 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 73 | 9 | 2013 | 2 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 26 | 2 | 1994 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 4 | 1 | 1970 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 66 | 10 | 1996 | 3 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 18 | 3 | 2009 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1966.
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).