Aberdeen 20NNE Threshold Days by Year
15 fixed thresholds counted per year at Aberdeen 20NNE (USC00450013): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Aberdeen 20NNE Thresholds
- Aberdeen 20NNE: days with 10 mm (0.39 in) or more of precipitation in 74 years, most in 1997 with 115.
- Aberdeen 20NNE: days with 25 mm (0.98 in) or more of precipitation in 74 years, most in 1961 with 63.
- Aberdeen 20NNE: days with 50 mm (1.97 in) or more of precipitation in 74 years, most in 1999 with 26.
- Aberdeen 20NNE: days with 100 mm (3.94 in) or more of precipitation in 60 years, most in 1997 with 7.
- 15 fixed thresholds have at least one qualifying day at Aberdeen 20NNE.
Days at or above 30 C (86 F)
41 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1958 | 28 | 21 |
| 1959 | 14 | 21 |
| 1960 | 11 | 6.7 |
| 1961 | 9 | 6.7 |
| 1962 | 2 | 6.7 |
| 1963 | 9 | 6.7 |
| 1964 | 2 | 6.7 |
| 1966 | 3 | 6.7 |
| 1967 | 15 | 6.7 |
| 1968 | 6 | 6.7 |
| 1969 | 3 | 6.7 |
| 1970 | 9 | 7.2 |
| 1971 | 9 | 7.2 |
| 1972 | 8 | 7.2 |
| 1973 | 4 | 7.2 |
| 1974 | 8 | 7.2 |
| 1975 | 2 | 7.2 |
| 1977 | 7 | 7.2 |
| 1978 | 13 | 7.2 |
| 1979 | 5 | 7.2 |
| 1980 | 1 | 5.7 |
| 1981 | 8 | 5.7 |
| 1982 | 4 | 5.7 |
| 1983 | 2 | 5.7 |
| 1984 | 4 | 5.7 |
| 1985 | 13 | 5.7 |
| 1986 | 6 | 5.7 |
| 1987 | 7 | 5.7 |
| 1988 | 8 | 5.7 |
| 1989 | 4 | 5.7 |
| 1990 | 12 | 5.8 |
| 1991 | 1 | 5.8 |
| 1992 | 11 | 5.8 |
| 1993 | 3 | 5.8 |
| 1994 | 4 | 5.8 |
| 1995 | 8 | 5.8 |
| 1996 | 9 | 5.8 |
| 1997 | 3 | 5.8 |
| 1998 | 6 | 5.8 |
| 1999 | 1 | 5.8 |
| 2000 | 2 | 2 |
| Year | First date | Last date |
|---|---|---|
| 1958 | 1958-05-22 | 1958-09-07 |
| 1959 | 1959-05-23 | 1959-09-02 |
| 1960 | 1960-07-05 | 1960-08-09 |
| 1961 | 1961-06-02 | 1961-08-22 |
| 1962 | 1962-07-22 | 1962-07-27 |
| 1963 | 1963-05-18 | 1963-09-09 |
| 1964 | 1964-07-11 | 1964-08-24 |
| 1966 | 1966-06-15 | 1966-08-20 |
| 1967 | 1967-06-19 | 1967-09-16 |
| 1968 | 1968-07-02 | 1968-08-01 |
| 1969 | 1969-05-23 | 1969-06-18 |
| 1970 | 1970-06-02 | 1970-08-11 |
| 1971 | 1971-05-12 | 1971-08-12 |
| 1972 | 1972-05-29 | 1972-09-03 |
| 1973 | 1973-05-14 | 1973-08-13 |
| 1974 | 1974-07-29 | 1974-09-21 |
| 1975 | 1975-07-05 | 1975-07-27 |
| 1977 | 1977-06-18 | 1977-08-18 |
| 1978 | 1978-06-02 | 1978-08-09 |
| 1979 | 1979-07-15 | 1979-09-15 |
| 1980 | 1980-07-22 | 1980-07-22 |
| 1981 | 1981-07-27 | 1981-09-08 |
| 1982 | 1982-06-18 | 1982-08-25 |
| 1983 | 1983-05-29 | 1983-07-31 |
| 1984 | 1984-07-16 | 1984-07-25 |
| 1985 | 1985-05-16 | 1985-08-24 |
| 1986 | 1986-05-31 | 1986-08-27 |
| 1987 | 1987-05-07 | 1987-08-31 |
| 1988 | 1988-06-14 | 1988-09-02 |
| 1989 | 1989-06-03 | 1989-06-24 |
| 1990 | 1990-06-21 | 1990-09-22 |
| 1991 | 1991-07-23 | 1991-07-23 |
| 1992 | 1992-05-24 | 1992-08-11 |
| 1993 | 1993-08-02 | 1993-08-04 |
| 1994 | 1994-07-19 | 1994-07-22 |
| 1995 | 1995-06-28 | 1995-07-19 |
| 1996 | 1996-07-12 | 1996-08-29 |
| 1997 | 1997-05-11 | 1997-08-10 |
| 1998 | 1998-07-26 | 1998-08-31 |
| 1999 | 1999-05-23 | 1999-05-23 |
| 2000 | 2000-06-26 | 2000-06-27 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 41 | 28 | 1958 | 2 |
| 35 C (95 F): Days | 12 | 3 | 1981 | 1 |
| 90 F (32.2 C): Days | 30 | 15 | 1958 | 1 |
| 100 F (37.8 C): Days | 1 | 1 | 1981 | 1 |
| 0 C (32 F): Ice days (max | 24 | 10 | 1972 | 6 |
| 0 C (32 F): Frost days (min | 43 | 134 | 1985 | 56 |
| -10 C (14 F): Days with min | 17 | 12 | 1972 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 74 | 115 | 1997 | 87 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 74 | 63 | 1961 | 44 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 74 | 26 | 1999 | 13 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 60 | 7 | 1997 | 7 |
| 200 mm (7.87 in): Days with 200 mm or more rain | 1 | 1 | 1968 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 39 | 9 | 1971 | 1 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 10 | 2 | 1932 | 1 |
| 50 cm (19.7 in): Days with 50 cm or more snowfall | 1 | 1 | 1954 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1958.
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).