Prospect Threshold Days by Year (SF000753660)

4 fixed thresholds counted per year at Prospect (SF000753660): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Prospect Thresholds

Prospect: days with 10 mm (0.39 in) or more of precipitation in 69 years, most in 1976 with 30.
Prospect: days with 25 mm (0.98 in) or more of precipitation in 65 years, most in 1976 with 8.
Prospect: days with 50 mm (1.97 in) or more of precipitation in 29 years, most in 1928 with 2.
Prospect: days with 100 mm (3.94 in) or more of precipitation in 3 years, most in 1932 with 1.
4 fixed thresholds have at least one qualifying day at Prospect.

Days with 10 mm (0.39 in) or more of precipitation

69 years with a qualifying day

Days per year at Prospect with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 30 in 1976.

Days with 10 mm (0.39 in) or more of precipitation per year at Prospect
Year	Days	Decade average
1927	6	8
1928	8	8
1929	10	8
1930	15	13.2
1931	12	13.2
1932	17	13.2
1933	8	13.2
1934	16	13.2
1935	18	13.2
1936	13	13.2
1937	9	13.2
1938	9	13.2
1939	15	13.2
1940	17	10.9
1941	9	10.9
1942	13	10.9
1943	16	10.9
1944	10	10.9
1945	9	10.9
1946	6	10.9
1947	10	10.9
1948	9	10.9
1949	10	10.9
1950	18	12.7
1951	7	12.7
1952	16	12.7
1953	14	12.7
1954	19	12.7
1955	13	12.7
1956	13	12.7
1957	10	12.7
1958	6	12.7
1959	11	12.7
1960	12	12.7
1961	12	12.7
1962	13	12.7
1963	24	12.7
1964	14	12.7
1965	12	12.7
1966	7	12.7
1967	11	12.7
1968	8	12.7
1969	14	12.7
1970	10	16.8
1972	11	16.8
1973	16	16.8
1974	26	16.8
1975	15	16.8
1976	30	16.8
1977	16	16.8
1978	13	16.8
1979	14	16.8
1980	14	14.4
1981	20	14.4
1982	15	14.4
1983	14	14.4
1984	6	14.4
1985	23	14.4
1986	11	14.4
1987	7	14.4
1988	17	14.4
1989	17	14.4
1990	7	11.7
1991	10	11.7
1992	6	11.7
1994	16	11.7
1995	13	11.7
1996	15	11.7
1997	15	11.7

For each year, a bar from the first to the last day at Prospect meeting 10 mm (0.39 in).

First to last qualifying date each year at Prospect
Year	First date	Last date
1927	1927-05-11	1927-12-12
1928	1928-03-27	1928-12-21
1929	1929-04-01	1929-12-30
1930	1930-01-02	1930-12-31
1931	1931-01-02	1931-12-31
1932	1932-01-01	1932-11-28
1933	1933-02-22	1933-12-28
1934	1934-01-02	1934-12-12
1935	1935-01-13	1935-12-31
1936	1936-02-25	1936-12-04
1937	1937-01-22	1937-12-17
1938	1938-01-21	1938-11-14
1939	1939-01-22	1939-12-03
1940	1940-02-04	1940-12-07
1941	1941-01-05	1941-12-23
1942	1942-02-24	1942-11-11
1943	1943-03-10	1943-12-14
1944	1944-01-14	1944-10-27
1945	1945-02-15	1945-11-10
1946	1946-02-14	1946-10-21
1947	1947-01-15	1947-12-28
1948	1948-01-29	1948-09-21
1949	1949-01-13	1949-12-11
1950	1950-02-07	1950-12-09
1951	1951-01-11	1951-09-30
1952	1952-02-19	1952-12-18
1953	1953-03-13	1953-12-20
1954	1954-01-19	1954-12-01
1955	1955-02-03	1955-12-04
1956	1956-02-12	1956-12-07
1957	1957-01-30	1957-08-31
1958	1958-01-17	1958-12-14
1959	1959-01-26	1959-09-13
1960	1960-01-17	1960-11-27
1961	1961-01-16	1961-08-29
1962	1962-01-19	1962-12-27
1963	1963-01-04	1963-12-11
1964	1964-02-01	1964-12-07
1965	1965-03-28	1965-11-03
1966	1966-01-21	1966-09-15
1967	1967-01-30	1967-12-20
1968	1968-03-12	1968-10-22
1969	1969-02-23	1969-11-20
1970	1970-02-25	1970-12-24
1972	1972-01-06	1972-08-11
1973	1973-02-17	1973-12-23
1974	1974-01-20	1974-12-17
1975	1975-02-19	1975-12-22
1976	1976-01-03	1976-12-31
1977	1977-01-11	1977-12-30
1978	1978-01-09	1978-12-25
1979	1979-02-21	1979-11-13
1980	1980-02-05	1980-12-15
1981	1981-01-25	1981-12-23
1982	1982-03-03	1982-12-05
1983	1983-01-18	1983-12-21
1984	1984-06-12	1984-11-28
1985	1985-01-14	1985-12-24
1986	1986-01-03	1986-11-26
1987	1987-02-09	1987-12-22
1988	1988-02-16	1988-12-26
1989	1989-01-04	1989-11-15
1990	1990-01-05	1990-08-19
1991	1991-01-07	1991-12-31
1992	1992-02-12	1992-11-08
1994	1994-01-07	1994-12-26
1995	1995-01-11	1995-12-15
1996	1996-01-17	1996-12-29
1997	1997-01-15	1997-11-16

Every Fixed Threshold

Fixed thresholds at Prospect
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
10 mm (0.39 in): Days with 10 mm or more rain	69	30	1976	15
25 mm (0.98 in): Days with 25 mm or more rain	65	8	1976	1
50 mm (1.97 in): Days with 50 mm or more rain	29	2	1928	1
100 mm (3.94 in): Days with 100 mm or more rain	3	1	1932	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1927.

Download the Data

Data for Prospect threshold days by year: CSV or JSON. Field meanings are on the data page.

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 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Prospect Threshold Days by Year (SF000753660)

Key Facts for Prospect Thresholds

Days with 10 mm (0.39 in) or more of precipitation

Every Fixed Threshold

Download the Data

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