Highmore 23 N Threshold Days by Year (USC00393838)
20 fixed thresholds counted per year at Highmore 23 N (USC00393838): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Highmore 23 N Thresholds
- Highmore 23 N: days with 10 mm (0.39 in) or more of precipitation in 50 years, most in 1957 with 27.
- Highmore 23 N: days with 25 mm (0.98 in) or more of precipitation in 49 years, most in 1968 with 9.
- Highmore 23 N: days with 10 cm (3.9 in) or more of snowfall in 40 years, most in 1989 with 8.
- Highmore 23 N: nights with a minimum temperature at or below 0 C (32 F) in 36 years, most in 1970 with 199.
- 20 fixed thresholds have at least one qualifying day at Highmore 23 N.
Days at or above 30 C (86 F)
35 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1964 | 54 | 47 |
| 1966 | 57 | 47 |
| 1967 | 41 | 47 |
| 1968 | 34 | 47 |
| 1969 | 49 | 47 |
| 1970 | 76 | 55.6 |
| 1971 | 50 | 55.6 |
| 1972 | 40 | 55.6 |
| 1973 | 56 | 55.6 |
| 1974 | 54 | 55.6 |
| 1975 | 50 | 55.6 |
| 1976 | 85 | 55.6 |
| 1977 | 49 | 55.6 |
| 1978 | 54 | 55.6 |
| 1979 | 42 | 55.6 |
| 1980 | 75 | 60 |
| 1981 | 49 | 60 |
| 1982 | 47 | 60 |
| 1983 | 67 | 60 |
| 1984 | 51 | 60 |
| 1985 | 52 | 60 |
| 1986 | 41 | 60 |
| 1987 | 69 | 60 |
| 1988 | 75 | 60 |
| 1989 | 74 | 60 |
| 1990 | 61 | 41.8 |
| 1991 | 50 | 41.8 |
| 1992 | 26 | 41.8 |
| 1997 | 30 | 41.8 |
| 2003 | 56 | 45.2 |
| 2004 | 25 | 45.2 |
| 2005 | 58 | 45.2 |
| 2006 | 62 | 45.2 |
| 2007 | 33 | 45.2 |
| 2008 | 37 | 45.2 |
| Year | First date | Last date |
|---|---|---|
| 1964 | 1964-05-20 | 1964-09-13 |
| 1966 | 1966-05-04 | 1966-09-11 |
| 1967 | 1967-05-22 | 1967-09-25 |
| 1968 | 1968-04-30 | 1968-09-15 |
| 1969 | 1969-05-14 | 1969-09-15 |
| 1970 | 1970-05-07 | 1970-10-05 |
| 1971 | 1971-06-16 | 1971-09-04 |
| 1972 | 1972-05-17 | 1972-09-20 |
| 1973 | 1973-05-20 | 1973-09-02 |
| 1974 | 1974-06-18 | 1974-09-26 |
| 1975 | 1975-06-25 | 1975-10-07 |
| 1976 | 1976-06-02 | 1976-10-01 |
| 1977 | 1977-04-09 | 1977-09-08 |
| 1978 | 1978-06-16 | 1978-09-26 |
| 1979 | 1979-05-28 | 1979-09-26 |
| 1980 | 1980-04-20 | 1980-10-09 |
| 1981 | 1981-06-06 | 1981-09-29 |
| 1982 | 1982-05-03 | 1982-09-10 |
| 1983 | 1983-05-27 | 1983-09-28 |
| 1984 | 1984-05-16 | 1984-09-22 |
| 1985 | 1985-04-18 | 1985-09-06 |
| 1986 | 1986-06-07 | 1986-08-25 |
| 1987 | 1987-04-17 | 1987-09-27 |
| 1988 | 1988-05-28 | 1988-09-18 |
| 1989 | 1989-06-06 | 1989-10-01 |
| 1990 | 1990-04-22 | 1990-10-06 |
| 1991 | 1991-06-12 | 1991-10-17 |
| 1992 | 1992-04-30 | 1992-10-02 |
| 1997 | 1997-05-17 | 1997-10-02 |
| 2003 | 2003-04-13 | 2003-10-19 |
| 2004 | 2004-04-28 | 2004-09-19 |
| 2005 | 2005-06-19 | 2005-10-01 |
| 2006 | 2006-05-18 | 2006-10-07 |
| 2007 | 2007-05-13 | 2007-09-29 |
| 2008 | 2008-06-24 | 2008-09-19 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 35 | 85 | 1976 | 37 |
| 35 C (95 F): Days | 35 | 39 | 1976 | 4 |
| 40 C (104 F): Days | 17 | 9 | 1976 | 5 |
| 45 C (113 F): Days | 1 | 1 | 2006 | 1 |
| 90 F (32.2 C): Days | 35 | 64 | 1976 | 14 |
| 100 F (37.8 C): Days | 26 | 23 | 1976 | 4 |
| 110 F (43.3 C): Days | 4 | 1 | 1966 | 1 |
| 0 C (32 F): Ice days (max | 35 | 103 | 1978 | 75 |
| 0 C (32 F): Frost days (min | 36 | 199 | 1970 | 191 |
| -10 C (14 F): Days with min | 36 | 109 | 1978 | 96 |
| -20 C (-4 F): Days with min | 36 | 49 | 1978 | 37 |
| -30 C (-22 F): Days with min | 26 | 9 | 1989 | 3 |
| 20 C (68 F): Tropical nights (min | 34 | 10 | 1988 | 1 |
| 25 C (77 F): Days with min | 3 | 1 | 1977 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 50 | 27 | 1957 | 16 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 49 | 9 | 1968 | 4 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 20 | 2 | 1960 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 2 | 1 | 1960 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 40 | 8 | 1989 | 4 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 9 | 2 | 2008 | 2 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1964.
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).