Joliet Threshold Days by Year (USC00244506)
17 fixed thresholds counted per year at Joliet (USC00244506): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Joliet Thresholds
- Joliet: days with 10 mm (0.39 in) or more of precipitation in 66 years, most in 1978 with 16.
- Joliet: days with a maximum temperature at or above 30 C (86 F) in 61 years, most in 1988 with 82.
- Joliet: days with a maximum temperature at or above 90 F (32.2 C) in 61 years, most in 1988 with 59.
- Joliet: days with a maximum temperature at or below 0 C (32 F) in 61 years, most in 1978 with 60.
- 17 fixed thresholds have at least one qualifying day at Joliet.
Days at or above 30 C (86 F)
61 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1957 | 44 | 48.3 |
| 1958 | 45 | 48.3 |
| 1959 | 56 | 48.3 |
| 1960 | 59 | 47.1 |
| 1961 | 61 | 47.1 |
| 1962 | 35 | 47.1 |
| 1963 | 58 | 47.1 |
| 1964 | 44 | 47.1 |
| 1965 | 29 | 47.1 |
| 1966 | 60 | 47.1 |
| 1967 | 47 | 47.1 |
| 1968 | 29 | 47.1 |
| 1969 | 49 | 47.1 |
| 1970 | 60 | 46.9 |
| 1971 | 61 | 46.9 |
| 1972 | 38 | 46.9 |
| 1973 | 51 | 46.9 |
| 1974 | 48 | 46.9 |
| 1975 | 36 | 46.9 |
| 1976 | 43 | 46.9 |
| 1977 | 46 | 46.9 |
| 1978 | 32 | 46.9 |
| 1979 | 54 | 46.9 |
| 1980 | 50 | 52.6 |
| 1981 | 54 | 52.6 |
| 1982 | 34 | 52.6 |
| 1983 | 54 | 52.6 |
| 1984 | 62 | 52.6 |
| 1985 | 45 | 52.6 |
| 1986 | 49 | 52.6 |
| 1987 | 44 | 52.6 |
| 1988 | 82 | 52.6 |
| 1989 | 52 | 52.6 |
| 1991 | 53 | 45.3 |
| 1992 | 39 | 45.3 |
| 1993 | 16 | 45.3 |
| 1994 | 56 | 45.3 |
| 1996 | 46 | 45.3 |
| 1997 | 39 | 45.3 |
| 1998 | 61 | 45.3 |
| 1999 | 52 | 45.3 |
| 2000 | 64 | 54.1 |
| 2001 | 64 | 54.1 |
| 2002 | 49 | 54.1 |
| 2003 | 68 | 54.1 |
| 2004 | 38 | 54.1 |
| 2005 | 48 | 54.1 |
| 2006 | 59 | 54.1 |
| 2007 | 58 | 54.1 |
| 2008 | 39 | 54.1 |
| 2010 | 39 | 46.2 |
| 2011 | 53 | 46.2 |
| 2012 | 64 | 46.2 |
| 2013 | 52 | 46.2 |
| 2014 | 37 | 46.2 |
| 2015 | 49 | 46.2 |
| 2016 | 51 | 46.2 |
| 2017 | 52 | 46.2 |
| 2018 | 28 | 46.2 |
| 2019 | 37 | 46.2 |
| 2020 | 52 | 52 |
| Year | First date | Last date |
|---|---|---|
| 1957 | 1957-06-03 | 1957-09-07 |
| 1958 | 1958-05-20 | 1958-10-05 |
| 1959 | 1959-06-03 | 1959-09-14 |
| 1960 | 1960-05-11 | 1960-09-19 |
| 1961 | 1961-05-29 | 1961-09-16 |
| 1962 | 1962-06-25 | 1962-09-06 |
| 1963 | 1963-06-13 | 1963-10-04 |
| 1964 | 1964-05-19 | 1964-09-25 |
| 1965 | 1965-06-12 | 1965-08-15 |
| 1966 | 1966-05-04 | 1966-09-23 |
| 1967 | 1967-06-29 | 1967-09-29 |
| 1968 | 1968-06-02 | 1968-09-11 |
| 1969 | 1969-05-24 | 1969-09-13 |
| 1970 | 1970-05-17 | 1970-09-04 |
| 1971 | 1971-05-27 | 1971-09-13 |
| 1972 | 1972-05-15 | 1972-09-18 |
| 1973 | 1973-05-16 | 1973-09-06 |
| 1974 | 1974-04-24 | 1974-09-26 |
| 1975 | 1975-05-15 | 1975-09-24 |
| 1976 | 1976-06-02 | 1976-09-10 |
| 1977 | 1977-06-01 | 1977-09-14 |
| 1978 | 1978-05-15 | 1978-09-06 |
| 1979 | 1979-05-27 | 1979-09-16 |
| 1980 | 1980-04-20 | 1980-10-07 |
| 1981 | 1981-05-01 | 1981-09-19 |
| 1982 | 1982-06-22 | 1982-09-09 |
| 1983 | 1983-05-25 | 1983-09-16 |
| 1984 | 1984-05-15 | 1984-09-19 |
| 1985 | 1985-05-02 | 1985-08-30 |
| 1986 | 1986-05-03 | 1986-08-30 |
| 1987 | 1987-04-28 | 1987-09-25 |
| 1988 | 1988-05-13 | 1988-09-07 |
| 1989 | 1989-06-15 | 1989-09-30 |
| 1991 | 1991-06-11 | 1991-10-16 |
| 1992 | 1992-04-29 | 1992-10-03 |
| 1993 | 1993-05-13 | 1993-09-11 |
| 1994 | 1994-06-05 | 1994-09-28 |
| 1996 | 1996-06-08 | 1996-09-01 |
| 1997 | 1997-05-31 | 1997-10-01 |
| 1998 | 1998-07-03 | 1998-09-19 |
| 1999 | 1999-05-25 | 1999-09-17 |
| 2000 | 2000-06-05 | 2000-09-17 |
| 2001 | 2001-05-13 | 2001-10-02 |
| 2002 | 2002-05-21 | 2002-09-17 |
| 2003 | 2003-05-26 | 2003-10-21 |
| 2004 | 2004-06-04 | 2004-09-12 |
| 2005 | 2005-06-18 | 2005-09-21 |
| 2006 | 2006-05-18 | 2006-09-14 |
| 2007 | 2007-05-18 | 2007-09-23 |
| 2008 | 2008-05-19 | 2008-09-17 |
| 2010 | 2010-06-25 | 2010-10-04 |
| 2011 | 2011-06-24 | 2011-10-05 |
| 2012 | 2012-05-10 | 2012-09-19 |
| 2013 | 2013-05-13 | 2013-09-08 |
| 2014 | 2014-07-04 | 2014-09-27 |
| 2015 | 2015-06-09 | 2015-09-27 |
| 2016 | 2016-05-06 | 2016-09-12 |
| 2017 | 2017-05-07 | 2017-09-13 |
| 2018 | 2018-06-05 | 2018-09-08 |
| 2019 | 2019-06-07 | 2019-09-17 |
| 2020 | 2020-06-01 | 2020-10-07 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 61 | 82 | 1988 | 52 |
| 35 C (95 F): Days | 60 | 29 | 2003 | 11 |
| 40 C (104 F): Days | 7 | 4 | 2002 | 1 |
| 90 F (32.2 C): Days | 61 | 59 | 1988 | 34 |
| 100 F (37.8 C): Days | 32 | 10 | 2007 | 2 |
| 0 C (32 F): Ice days (max | 61 | 60 | 1978 | 37 |
| 0 C (32 F): Frost days (min | 61 | 210 | 1968 | 193 |
| -10 C (14 F): Days with min | 61 | 89 | 2018 | 55 |
| -20 C (-4 F): Days with min | 61 | 32 | 1985 | 7 |
| -30 C (-22 F): Days with min | 40 | 7 | 1972 | 4 |
| 20 C (68 F): Tropical nights (min | 5 | 3 | 1983 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 66 | 16 | 1978 | 10 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 57 | 6 | 1962 | 1 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 12 | 3 | 1978 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 2 | 1 | 1978 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 61 | 12 | 1991 | 4 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 11 | 2 | 1955 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1957.
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 (2025-12-31).