Blanca 4 NW Threshold Days by Year
12 fixed thresholds counted per year at Blanca 4 NW (USC00050776): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Blanca 4 NW Thresholds
- Blanca 4 NW: days with 10 mm (0.39 in) or more of precipitation in 65 years, most in 1995 with 12.
- Blanca 4 NW: nights with a minimum temperature at or below 0 C (32 F) in 52 years, most in 1971 with 251.
- Blanca 4 NW: nights with a minimum temperature at or below -10 C (14 F) in 52 years, most in 1964 with 132.
- Blanca 4 NW: nights with a minimum temperature at or below -20 C (-4 F) in 52 years, most in 1992 with 54.
- 12 fixed thresholds have at least one qualifying day at Blanca 4 NW.
Days at or above 30 C (86 F)
51 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1909 | 10 | 10 |
| 1910 | 13 | 5.5 |
| 1913 | 4 | 5.5 |
| 1915 | 3 | 5.5 |
| 1916 | 2 | 5.5 |
| 1926 | 5 | 5 |
| 1928 | 5 | 5 |
| 1961 | 23 | 15.6 |
| 1962 | 15 | 15.6 |
| 1963 | 25 | 15.6 |
| 1964 | 22 | 15.6 |
| 1965 | 7 | 15.6 |
| 1966 | 13 | 15.6 |
| 1967 | 8 | 15.6 |
| 1968 | 12 | 15.6 |
| 1969 | 15 | 15.6 |
| 1970 | 17 | 13 |
| 1971 | 14 | 13 |
| 1972 | 8 | 13 |
| 1973 | 13 | 13 |
| 1974 | 10 | 13 |
| 1976 | 8 | 13 |
| 1977 | 12 | 13 |
| 1978 | 16 | 13 |
| 1979 | 19 | 13 |
| 1980 | 32 | 14.1 |
| 1982 | 8 | 14.1 |
| 1983 | 9 | 14.1 |
| 1984 | 8 | 14.1 |
| 1985 | 20 | 14.1 |
| 1986 | 13 | 14.1 |
| 1987 | 11 | 14.1 |
| 1988 | 11 | 14.1 |
| 1989 | 15 | 14.1 |
| 1990 | 11 | 7.9 |
| 1991 | 4 | 7.9 |
| 1992 | 2 | 7.9 |
| 1993 | 3 | 7.9 |
| 1994 | 12 | 7.9 |
| 1995 | 13 | 7.9 |
| 1996 | 13 | 7.9 |
| 1997 | 5 | 7.9 |
| 1998 | 15 | 7.9 |
| 1999 | 1 | 7.9 |
| 2000 | 15 | 23.1 |
| 2001 | 5 | 23.1 |
| 2002 | 26 | 23.1 |
| 2003 | 26 | 23.1 |
| 2006 | 21 | 23.1 |
| 2008 | 30 | 23.1 |
| 2009 | 39 | 23.1 |
| Year | First date | Last date |
|---|---|---|
| 1909 | 1909-06-28 | 1909-07-22 |
| 1910 | 1910-07-15 | 1910-08-22 |
| 1913 | 1913-07-05 | 1913-07-12 |
| 1915 | 1915-07-11 | 1915-07-18 |
| 1916 | 1916-06-30 | 1916-07-01 |
| 1926 | 1926-07-18 | 1926-08-27 |
| 1928 | 1928-06-08 | 1928-08-20 |
| 1961 | 1961-06-08 | 1961-08-09 |
| 1962 | 1962-06-21 | 1962-08-29 |
| 1963 | 1963-06-25 | 1963-09-02 |
| 1964 | 1964-06-26 | 1964-08-11 |
| 1965 | 1965-07-18 | 1965-08-12 |
| 1966 | 1966-07-04 | 1966-07-26 |
| 1967 | 1967-06-21 | 1967-07-30 |
| 1968 | 1968-06-18 | 1968-07-22 |
| 1969 | 1969-06-30 | 1969-08-11 |
| 1970 | 1970-06-25 | 1970-09-12 |
| 1971 | 1971-06-22 | 1971-07-17 |
| 1972 | 1972-06-28 | 1972-08-12 |
| 1973 | 1973-06-09 | 1973-08-11 |
| 1974 | 1974-06-19 | 1974-06-30 |
| 1976 | 1976-06-27 | 1976-07-30 |
| 1977 | 1977-06-17 | 1977-09-08 |
| 1978 | 1978-06-23 | 1978-08-27 |
| 1979 | 1979-06-23 | 1979-09-06 |
| 1980 | 1980-06-17 | 1980-08-11 |
| 1982 | 1982-06-29 | 1982-08-16 |
| 1983 | 1983-07-07 | 1983-08-17 |
| 1984 | 1984-06-29 | 1984-07-22 |
| 1985 | 1985-06-07 | 1985-08-31 |
| 1986 | 1986-06-28 | 1986-08-24 |
| 1987 | 1987-07-02 | 1987-08-20 |
| 1988 | 1988-07-03 | 1988-08-14 |
| 1989 | 1989-06-18 | 1989-07-20 |
| 1990 | 1990-06-19 | 1990-07-03 |
| 1991 | 1991-06-26 | 1991-07-08 |
| 1992 | 1992-07-06 | 1992-07-07 |
| 1993 | 1993-07-03 | 1993-08-01 |
| 1994 | 1994-06-25 | 1994-09-27 |
| 1995 | 1995-07-12 | 1995-09-06 |
| 1996 | 1996-06-20 | 1996-08-15 |
| 1997 | 1997-07-15 | 1997-08-04 |
| 1998 | 1998-06-28 | 1998-08-25 |
| 1999 | 1999-07-01 | 1999-07-01 |
| 2000 | 2000-05-30 | 2000-08-10 |
| 2001 | 2001-07-05 | 2001-07-30 |
| 2002 | 2002-05-31 | 2002-08-26 |
| 2003 | 2003-06-28 | 2003-08-12 |
| 2006 | 2006-06-04 | 2006-07-26 |
| 2008 | 2008-06-01 | 2008-08-23 |
| 2009 | 2009-07-04 | 2009-08-23 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 51 | 39 | 2009 | 39 |
| 35 C (95 F): Days | 3 | 1 | 1961 | 1 |
| 90 F (32.2 C): Days | 28 | 23 | 2009 | 23 |
| 0 C (32 F): Ice days (max | 51 | 79 | 1992 | 18 |
| 0 C (32 F): Frost days (min | 52 | 251 | 1971 | 198 |
| -10 C (14 F): Days with min | 52 | 132 | 1964 | 93 |
| -20 C (-4 F): Days with min | 52 | 54 | 1992 | 17 |
| -30 C (-22 F): Days with min | 25 | 7 | 1964 | 3 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 65 | 12 | 1995 | 4 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 13 | 2 | 1945 | 2 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 49 | 5 | 1991 | 2 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 8 | 1 | 1909 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1909.
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 2026-10-15 (15 October 2026). Threshold counts are computed by this site.
Data as of . Last revised (2025-12-31).