Annapolis Police Brks Threshold Days by Year (USC00180193)
17 fixed thresholds counted per year at Annapolis Police Brks (USC00180193): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Annapolis Police Brks Thresholds
- Annapolis Police Brks: days with 10 mm (0.39 in) or more of precipitation in 42 years, most in 1989 with 47.
- Annapolis Police Brks: days with 25 mm (0.98 in) or more of precipitation in 42 years, most in 1979 with 19.
- Annapolis Police Brks: nights with a minimum temperature at or below 0 C (32 F) in 37 years, most in 1987 with 115.
- Annapolis Police Brks: nights with a minimum temperature at or above 20 C (68 F) in 37 years, most in 2004 with 76.
- 17 fixed thresholds have at least one qualifying day at Annapolis Police Brks.
Days at or above 30 C (86 F)
32 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1952 | 59 | 60 |
| 1954 | 59 | 60 |
| 1958 | 53 | 60 |
| 1959 | 69 | 60 |
| 1960 | 41 | 54.1 |
| 1961 | 65 | 54.1 |
| 1962 | 64 | 54.1 |
| 1964 | 60 | 54.1 |
| 1965 | 54 | 54.1 |
| 1967 | 37 | 54.1 |
| 1968 | 61 | 54.1 |
| 1969 | 51 | 54.1 |
| 1977 | 76 | 60.7 |
| 1978 | 62 | 60.7 |
| 1979 | 44 | 60.7 |
| 1980 | 75 | 72.1 |
| 1981 | 59 | 72.1 |
| 1983 | 74 | 72.1 |
| 1984 | 57 | 72.1 |
| 1985 | 69 | 72.1 |
| 1986 | 91 | 72.1 |
| 1987 | 79 | 72.1 |
| 1988 | 79 | 72.1 |
| 1989 | 66 | 72.1 |
| 1992 | 57 | 66.8 |
| 1996 | 54 | 66.8 |
| 1997 | 64 | 66.8 |
| 1998 | 104 | 66.8 |
| 1999 | 55 | 66.8 |
| 2000 | 63 | 65 |
| 2001 | 74 | 65 |
| 2004 | 58 | 65 |
| Year | First date | Last date |
|---|---|---|
| 1952 | 1952-04-20 | 1952-09-30 |
| 1954 | 1954-06-08 | 1954-10-05 |
| 1958 | 1958-06-01 | 1958-09-27 |
| 1959 | 1959-04-08 | 1959-10-06 |
| 1960 | 1960-04-15 | 1960-09-04 |
| 1961 | 1961-04-25 | 1961-09-26 |
| 1962 | 1962-04-22 | 1962-10-12 |
| 1964 | 1964-04-18 | 1964-09-17 |
| 1965 | 1965-05-04 | 1965-09-22 |
| 1967 | 1967-06-10 | 1967-10-05 |
| 1968 | 1968-05-03 | 1968-10-03 |
| 1969 | 1969-05-29 | 1969-09-17 |
| 1977 | 1977-04-12 | 1977-09-20 |
| 1978 | 1978-04-01 | 1978-09-23 |
| 1979 | 1979-05-09 | 1979-09-07 |
| 1980 | 1980-05-05 | 1980-09-23 |
| 1981 | 1981-05-22 | 1981-09-15 |
| 1983 | 1983-05-15 | 1983-09-20 |
| 1984 | 1984-05-19 | 1984-09-25 |
| 1985 | 1985-04-19 | 1985-09-11 |
| 1986 | 1986-05-05 | 1986-10-03 |
| 1987 | 1987-05-10 | 1987-09-18 |
| 1988 | 1988-05-23 | 1988-09-24 |
| 1989 | 1989-03-28 | 1989-09-22 |
| 1992 | 1992-04-17 | 1992-09-26 |
| 1996 | 1996-04-23 | 1996-09-12 |
| 1997 | 1997-05-19 | 1997-10-11 |
| 1998 | 1998-03-29 | 1998-09-29 |
| 1999 | 1999-04-08 | 1999-08-29 |
| 2000 | 2000-03-07 | 2000-08-31 |
| 2001 | 2001-04-09 | 2001-09-19 |
| 2004 | 2004-04-20 | 2004-09-01 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 32 | 104 | 1998 | 58 |
| 35 C (95 F): Days | 30 | 28 | 1988 | 5 |
| 90 F (32.2 C): Days | 32 | 63 | 1988 | 24 |
| 100 F (37.8 C): Days | 10 | 5 | 1988 | 4 |
| 0 C (32 F): Ice days (max | 32 | 22 | 1977 | 12 |
| 0 C (32 F): Frost days (min | 37 | 115 | 1987 | 67 |
| -10 C (14 F): Days with min | 34 | 28 | 1977 | 5 |
| -20 C (-4 F): Days with min | 2 | 1 | 1984 | 1 |
| 20 C (68 F): Tropical nights (min | 37 | 76 | 2004 | 76 |
| 25 C (77 F): Days with min | 22 | 22 | 2004 | 22 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 42 | 47 | 1989 | 35 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 42 | 19 | 1979 | 17 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 37 | 6 | 1983 | 5 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 7 | 1 | 1969 | 1 |
| 200 mm (7.87 in): Days with 200 mm or more rain | 1 | 1 | 1999 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 17 | 5 | 1960 | 1 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 3 | 2 | 2000 | 2 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1952.
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).