Callao Threshold Days by Year (USC00421144)
17 fixed thresholds counted per year at Callao (USC00421144): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Callao Thresholds
- Callao: days with 10 mm (0.39 in) or more of precipitation in 82 years, most in 1945 with 9.
- Callao: days with a maximum temperature at or above 30 C (86 F) in 65 years, most in 2003 with 100.
- Callao: days with a maximum temperature at or above 90 F (32.2 C) in 65 years, most in 2001 with 78.
- Callao: days with a maximum temperature at or above 35 C (95 F) in 64 years, most in 2003 with 38.
- 17 fixed thresholds have at least one qualifying day at Callao.
Days at or above 30 C (86 F)
65 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1904 | 68 | 68 |
| 1963 | 73 | 62.7 |
| 1964 | 64 | 62.7 |
| 1965 | 44 | 62.7 |
| 1966 | 85 | 62.7 |
| 1967 | 64 | 62.7 |
| 1968 | 49 | 62.7 |
| 1969 | 60 | 62.7 |
| 1970 | 62 | 63.8 |
| 1971 | 59 | 63.8 |
| 1972 | 62 | 63.8 |
| 1973 | 58 | 63.8 |
| 1974 | 78 | 63.8 |
| 1975 | 49 | 63.8 |
| 1976 | 58 | 63.8 |
| 1977 | 65 | 63.8 |
| 1978 | 68 | 63.8 |
| 1979 | 79 | 63.8 |
| 1980 | 61 | 72.8 |
| 1981 | 87 | 72.8 |
| 1982 | 57 | 72.8 |
| 1983 | 63 | 72.8 |
| 1984 | 69 | 72.8 |
| 1985 | 66 | 72.8 |
| 1986 | 86 | 72.8 |
| 1987 | 73 | 72.8 |
| 1988 | 92 | 72.8 |
| 1989 | 74 | 72.8 |
| 1990 | 77 | 75.6 |
| 1991 | 70 | 75.6 |
| 1992 | 75 | 75.6 |
| 1993 | 57 | 75.6 |
| 1994 | 89 | 75.6 |
| 1995 | 60 | 75.6 |
| 1996 | 96 | 75.6 |
| 1997 | 81 | 75.6 |
| 1998 | 77 | 75.6 |
| 1999 | 74 | 75.6 |
| 2000 | 96 | 86.6 |
| 2001 | 99 | 86.6 |
| 2002 | 96 | 86.6 |
| 2003 | 100 | 86.6 |
| 2004 | 79 | 86.6 |
| 2005 | 72 | 86.6 |
| 2006 | 84 | 86.6 |
| 2007 | 96 | 86.6 |
| 2008 | 76 | 86.6 |
| 2009 | 68 | 86.6 |
| 2010 | 68 | 77.6 |
| 2011 | 60 | 77.6 |
| 2012 | 87 | 77.6 |
| 2013 | 85 | 77.6 |
| 2014 | 67 | 77.6 |
| 2015 | 79 | 77.6 |
| 2016 | 86 | 77.6 |
| 2017 | 85 | 77.6 |
| 2018 | 88 | 77.6 |
| 2019 | 71 | 77.6 |
| 2020 | 97 | 86.7 |
| 2021 | 91 | 86.7 |
| 2022 | 88 | 86.7 |
| 2023 | 60 | 86.7 |
| 2024 | 90 | 86.7 |
| 2025 | 90 | 86.7 |
| 2026 | 91 | 86.7 |
| Year | First date | Last date |
|---|---|---|
| 1904 | 1904-02-23 | 1904-09-19 |
| 1963 | 1963-05-07 | 1963-10-04 |
| 1964 | 1964-05-20 | 1964-10-01 |
| 1965 | 1965-06-06 | 1965-08-29 |
| 1966 | 1966-05-04 | 1966-09-25 |
| 1967 | 1967-05-23 | 1967-09-30 |
| 1968 | 1968-05-29 | 1968-09-14 |
| 1969 | 1969-05-26 | 1969-09-08 |
| 1970 | 1970-05-18 | 1970-09-09 |
| 1971 | 1971-06-17 | 1971-09-14 |
| 1972 | 1972-05-16 | 1972-09-18 |
| 1973 | 1973-05-18 | 1973-09-15 |
| 1974 | 1974-05-09 | 1974-09-30 |
| 1975 | 1975-06-07 | 1975-09-09 |
| 1976 | 1976-05-15 | 1976-09-05 |
| 1977 | 1977-06-01 | 1977-09-11 |
| 1978 | 1978-05-14 | 1978-09-29 |
| 1979 | 1979-05-16 | 1979-10-08 |
| 1980 | 1980-04-20 | 1980-09-29 |
| 1981 | 1981-06-06 | 1981-09-20 |
| 1982 | 1982-06-20 | 1982-09-09 |
| 1983 | 1983-05-26 | 1983-09-19 |
| 1984 | 1984-05-14 | 1984-09-20 |
| 1985 | 1985-05-02 | 1985-09-02 |
| 1986 | 1986-05-20 | 1986-09-14 |
| 1987 | 1987-04-27 | 1987-09-24 |
| 1988 | 1988-05-16 | 1988-10-05 |
| 1989 | 1989-05-07 | 1989-09-30 |
| 1990 | 1990-05-07 | 1990-09-17 |
| 1991 | 1991-06-12 | 1991-10-17 |
| 1992 | 1992-04-28 | 1992-10-02 |
| 1993 | 1993-05-14 | 1993-10-01 |
| 1994 | 1994-04-20 | 1994-09-29 |
| 1995 | 1995-06-12 | 1995-09-17 |
| 1996 | 1996-05-13 | 1996-09-13 |
| 1997 | 1997-05-16 | 1997-09-15 |
| 1998 | 1998-06-20 | 1998-09-19 |
| 1999 | 1999-06-14 | 1999-09-18 |
| 2000 | 2000-05-03 | 2000-10-02 |
| 2001 | 2001-05-10 | 2001-09-28 |
| 2002 | 2002-04-15 | 2002-09-25 |
| 2003 | 2003-05-23 | 2003-10-10 |
| 2004 | 2004-05-04 | 2004-09-19 |
| 2005 | 2005-05-21 | 2005-09-09 |
| 2006 | 2006-05-16 | 2006-09-14 |
| 2007 | 2007-04-30 | 2007-09-16 |
| 2008 | 2008-05-18 | 2008-09-26 |
| 2009 | 2009-05-18 | 2009-09-27 |
| 2010 | 2010-06-05 | 2010-09-29 |
| 2011 | 2011-06-16 | 2011-10-01 |
| 2012 | 2012-04-23 | 2012-09-17 |
| 2013 | 2013-05-13 | 2013-09-18 |
| 2014 | 2014-05-27 | 2014-09-19 |
| 2015 | 2015-05-31 | 2015-09-28 |
| 2016 | 2016-06-03 | 2016-09-21 |
| 2017 | 2017-05-25 | 2017-09-14 |
| 2018 | 2018-05-10 | 2018-09-18 |
| 2019 | 2019-06-07 | 2019-09-16 |
| 2020 | 2020-04-30 | 2020-09-25 |
| 2021 | 2021-05-01 | 2021-09-27 |
| 2022 | 2022-05-27 | 2022-09-28 |
| 2023 | 2023-05-22 | 2023-09-18 |
| 2024 | 2024-06-06 | 2024-10-05 |
| 2025 | 2025-05-11 | 2025-09-15 |
| 2026 | 2026-03-22 | 2026-10-06 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 65 | 100 | 2003 | 91 |
| 35 C (95 F): Days | 64 | 38 | 2003 | 34 |
| 40 C (104 F): Days | 4 | 2 | 2000 | 1 |
| 90 F (32.2 C): Days | 65 | 78 | 2001 | 68 |
| 100 F (37.8 C): Days | 22 | 8 | 2003 | 8 |
| 0 C (32 F): Ice days (max | 63 | 59 | 2013 | 6 |
| 0 C (32 F): Frost days (min | 64 | 189 | 1904 | 76 |
| -10 C (14 F): Days with min | 64 | 87 | 1964 | 24 |
| -20 C (-4 F): Days with min | 34 | 29 | 2013 | 1 |
| -30 C (-22 F): Days with min | 4 | 3 | 1989 | 1 |
| 20 C (68 F): Tropical nights (min | 54 | 14 | 2003 | 9 |
| 25 C (77 F): Days with min | 1 | 1 | 1990 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 82 | 9 | 1945 | 4 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 21 | 2 | 2011 | 1 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 1 | 1 | 1982 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 28 | 6 | 1949 | 1 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 2 | 2 | 1949 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1904.
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 (2026-10-17).