Alcalde Threshold Days by Year (USC00290245)
15 fixed thresholds counted per year at Alcalde (USC00290245): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Alcalde Thresholds
- Alcalde: days with 10 mm (0.39 in) or more of precipitation in 64 years, most in 1986 with 17.
- Alcalde: days with a maximum temperature at or above 30 C (86 F) in 61 years, most in 2018 with 104.
- Alcalde: days with a maximum temperature at or above 90 F (32.2 C) in 61 years, most in 2020 with 61.
- Alcalde: days with a maximum temperature at or above 35 C (95 F) in 58 years, most in 2023 with 27.
- 15 fixed thresholds have at least one qualifying day at Alcalde.
Days at or above 30 C (86 F)
61 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1954 | 81 | 68 |
| 1955 | 75 | 68 |
| 1956 | 91 | 68 |
| 1957 | 25 | 68 |
| 1958 | 60 | 68 |
| 1959 | 76 | 68 |
| 1960 | 78 | 64.2 |
| 1961 | 66 | 64.2 |
| 1962 | 72 | 64.2 |
| 1963 | 67 | 64.2 |
| 1964 | 76 | 64.2 |
| 1965 | 55 | 64.2 |
| 1966 | 45 | 64.2 |
| 1967 | 55 | 64.2 |
| 1968 | 52 | 64.2 |
| 1969 | 76 | 64.2 |
| 1970 | 74 | 71.2 |
| 1971 | 51 | 71.2 |
| 1972 | 62 | 71.2 |
| 1973 | 67 | 71.2 |
| 1974 | 81 | 71.2 |
| 1975 | 71 | 71.2 |
| 1976 | 68 | 71.2 |
| 1977 | 87 | 71.2 |
| 1978 | 81 | 71.2 |
| 1979 | 70 | 71.2 |
| 1984 | 75 | 72.3 |
| 1985 | 68 | 72.3 |
| 1986 | 63 | 72.3 |
| 1987 | 73 | 72.3 |
| 1988 | 69 | 72.3 |
| 1989 | 86 | 72.3 |
| 1990 | 63 | 63.8 |
| 1991 | 59 | 63.8 |
| 1992 | 46 | 63.8 |
| 1998 | 85 | 63.8 |
| 1999 | 66 | 63.8 |
| 2002 | 75 | 63.8 |
| 2003 | 77 | 63.8 |
| 2004 | 57 | 63.8 |
| 2005 | 67 | 63.8 |
| 2006 | 53 | 63.8 |
| 2007 | 72 | 63.8 |
| 2008 | 56 | 63.8 |
| 2009 | 53 | 63.8 |
| 2010 | 74 | 78.3 |
| 2011 | 78 | 78.3 |
| 2012 | 92 | 78.3 |
| 2013 | 80 | 78.3 |
| 2014 | 72 | 78.3 |
| 2015 | 58 | 78.3 |
| 2016 | 63 | 78.3 |
| 2017 | 81 | 78.3 |
| 2018 | 104 | 78.3 |
| 2019 | 81 | 78.3 |
| 2020 | 96 | 87.2 |
| 2022 | 90 | 87.2 |
| 2023 | 79 | 87.2 |
| 2024 | 80 | 87.2 |
| 2025 | 76 | 87.2 |
| 2026 | 102 | 87.2 |
| Year | First date | Last date |
|---|---|---|
| 1954 | 1954-06-06 | 1954-10-13 |
| 1955 | 1955-06-07 | 1955-09-21 |
| 1956 | 1956-05-12 | 1956-09-19 |
| 1957 | 1957-06-05 | 1957-09-03 |
| 1958 | 1958-05-27 | 1958-09-21 |
| 1959 | 1959-06-05 | 1959-09-09 |
| 1960 | 1960-06-02 | 1960-09-13 |
| 1961 | 1961-05-11 | 1961-08-27 |
| 1962 | 1962-05-10 | 1962-09-19 |
| 1963 | 1963-05-08 | 1963-09-27 |
| 1964 | 1964-05-15 | 1964-09-13 |
| 1965 | 1965-06-07 | 1965-08-30 |
| 1966 | 1966-05-07 | 1966-08-15 |
| 1967 | 1967-05-08 | 1967-09-04 |
| 1968 | 1968-05-28 | 1968-09-08 |
| 1969 | 1969-05-19 | 1969-09-07 |
| 1970 | 1970-05-17 | 1970-09-20 |
| 1971 | 1971-05-31 | 1971-09-15 |
| 1972 | 1972-05-27 | 1972-10-02 |
| 1973 | 1973-06-07 | 1973-09-24 |
| 1974 | 1974-05-08 | 1974-10-19 |
| 1975 | 1975-06-03 | 1975-09-08 |
| 1976 | 1976-05-15 | 1976-09-05 |
| 1977 | 1977-05-30 | 1977-09-20 |
| 1978 | 1978-05-14 | 1978-09-30 |
| 1979 | 1979-06-12 | 1979-09-13 |
| 1984 | 1984-05-11 | 1984-09-20 |
| 1985 | 1985-06-07 | 1985-09-03 |
| 1986 | 1986-05-20 | 1986-09-08 |
| 1987 | 1987-04-28 | 1987-10-02 |
| 1988 | 1988-05-14 | 1988-09-15 |
| 1989 | 1989-05-07 | 1989-09-30 |
| 1990 | 1990-06-03 | 1990-09-15 |
| 1991 | 1991-05-19 | 1991-10-12 |
| 1992 | 1992-04-29 | 1992-09-18 |
| 1998 | 1998-05-18 | 1998-09-30 |
| 1999 | 1999-05-14 | 1999-10-11 |
| 2002 | 2002-05-29 | 2002-09-07 |
| 2003 | 2003-05-17 | 2003-09-26 |
| 2004 | 2004-05-15 | 2004-09-18 |
| 2005 | 2005-05-19 | 2005-09-26 |
| 2006 | 2006-05-19 | 2006-08-18 |
| 2007 | 2007-06-05 | 2007-09-16 |
| 2008 | 2008-05-19 | 2008-08-28 |
| 2009 | 2009-05-07 | 2009-09-02 |
| 2010 | 2010-05-27 | 2010-09-29 |
| 2011 | 2011-05-28 | 2011-09-03 |
| 2012 | 2012-05-22 | 2012-09-06 |
| 2013 | 2013-05-23 | 2013-09-09 |
| 2014 | 2014-05-19 | 2014-09-22 |
| 2015 | 2015-06-02 | 2015-09-28 |
| 2016 | 2016-06-04 | 2016-09-20 |
| 2017 | 2017-06-04 | 2017-09-14 |
| 2018 | 2018-05-09 | 2018-09-19 |
| 2019 | 2019-06-04 | 2019-09-23 |
| 2020 | 2020-05-01 | 2020-09-26 |
| 2022 | 2022-05-08 | 2022-09-20 |
| 2023 | 2023-06-17 | 2023-09-10 |
| 2024 | 2024-05-29 | 2024-10-01 |
| 2025 | 2025-05-23 | 2025-09-12 |
| 2026 | 2026-05-13 | 2026-09-14 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 61 | 104 | 2018 | 102 |
| 35 C (95 F): Days | 58 | 27 | 2023 | 31 |
| 90 F (32.2 C): Days | 61 | 61 | 2020 | 86 |
| 100 F (37.8 C): Days | 11 | 5 | 1989 | 2 |
| 0 C (32 F): Ice days (max | 54 | 13 | 2013 | 2 |
| 0 C (32 F): Frost days (min | 57 | 192 | 1975 | 93 |
| -10 C (14 F): Days with min | 57 | 75 | 1955 | 23 |
| -20 C (-4 F): Days with min | 23 | 7 | 1963 | 1 |
| -30 C (-22 F): Days with min | 3 | 4 | 1971 | 2 |
| 20 C (68 F): Tropical nights (min | 6 | 5 | 1985 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 64 | 17 | 1986 | 12 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 39 | 4 | 1957 | 3 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 4 | 1 | 1958 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 29 | 3 | 1985 | 1 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 1 | 1 | 1987 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1954.
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).